WorldWideScience

Sample records for delphi automotive systems

  1. 78 FR 48467 - Delphi Automotive Systems, LLC, Products and Service Solutions Division, Including On-Site Leased...

    Science.gov (United States)

    2013-08-08

    ... Employment and Training Administration Delphi Automotive Systems, LLC, Products and Service Solutions... workers of Delphi Automotive Systems, LLC, Product and Service Solutions Division, Original Equipment... of ] Delphi Automotive Systems, LLC, Product and Service Solutions Division, including on-site...

  2. 76 FR 46852 - Workers From Kelly Services, Working On-Site at Delphi Automotive Systems, LLC, Powertrain...

    Science.gov (United States)

    2011-08-03

    ... workers from Kelly Services working on-site at Delphi Automotive Systems, LLC, El Paso, Texas. The workers...-site at Delphi Automotive Systems, LLC, Powertrain Division, El Paso, Texas. The amended notice...-site at Delphi Automotive Systems, LLC, Powertrain Division, El Paso, Texas, who became totally...

  3. 75 FR 41521 - Delphi Corporation, Automotive Holding Group, Plant 6, Currently Known as General Motors...

    Science.gov (United States)

    2010-07-16

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Employment and Training Administration Delphi Corporation, Automotive Holding Group, Plant 6, Currently Known as General Motors Corporation Including On-Site Leased Workers From Securitas, EDS, Bartech, Mays Chemicals, Interim Physicians, LLC and HSS...

  4. Identification for automotive systems

    CERN Document Server

    Hjalmarsson, Håkan; Re, Luigi

    2012-01-01

    Increasing complexity and performance and reliability expectations make modeling of automotive system both more difficult and more urgent. Automotive control has slowly evolved from an add-on to classical engine and vehicle design to a key technology to enforce consumption, pollution and safety limits. Modeling, however, is still mainly based on classical methods, even though much progress has been done in the identification community to speed it up and improve it. This book, the product of a workshop of representatives of different communities, offers an insight on how to close the gap and exploit this progress for the next generations of vehicles.

  5. Automotive systems engineering

    Energy Technology Data Exchange (ETDEWEB)

    Maurer, Markus [Technische Univ. Braunschweig (Germany). Inst. fuer Regelungstechnik; Winner, Hermann (eds.) [Technische Univ. Darmstadt (Germany). Fachgebiet Fahrzeugtechnik

    2013-06-01

    Innovative state-of-the-art book. Presents brand new results of a joint workshop in the field of automotive systems engineering. Recommendable to students for further reading even though not a primary text book. This book reflects the shift in design paradigm in automobile industry. It presents future innovations, often referred as ''automotive systems engineering''. These cause fundamental innovations in the field of driver assistance systems and electro-mobility as well as fundamental changes in the architecture of the vehicles. New driving functionalities can only be realized if the software programs of multiple electronic control units work together correctly. This volume presents the new and innovative methods which are mandatory to master the complexity of the vehicle of the future.

  6. Automotive systems engineering

    CERN Document Server

    Winner, Hermann

    2013-01-01

    This book reflects the shift in design paradigm in automobile industry. It presents future innovations, often referred as  “automotive systems engineering”.  These cause fundamental innovations in the field of driver assistance systems and electro-mobility as well as fundamental changes in the architecture of the vehicles. New driving functionalities can only be realized if the software programs of multiple electronic control units work together correctly. This volume presents the new and innovative methods which are mandatory to master the complexity of the vehicle of the future.

  7. Delphi Interface Maintenance System -

    Data.gov (United States)

    Department of Transportation — DIMS is the primary financial information system for tracking federally funded highway projects. It tracks authorizations, obligations, apportionments, allocations,...

  8. Automotive mechatronics automotive networking, driving stability systems, electronics

    CERN Document Server

    2015-01-01

    As the complexity of automotive vehicles increases this book presents operational and practical issues of automotive mechatronics. It is a comprehensive introduction to controlled automotive systems and provides detailed information of sensors for travel, angle, engine speed, vehicle speed, acceleration, pressure, temperature, flow, gas concentration etc. The measurement principles of the different sensor groups are explained and examples to show the measurement principles applied in different types. Contents Basics of mechatronics.- Architecture.- Electronic control unit.- Software development.- Basic principles of networking.- Automotive networking.- Bus systems.- Automotive sensors.- Sensor measuring principles.- Sensor types.- Electric actuators.- Electrohydraulic actuators.- Electronic transmission control.- Electronic transmission control unit.- Modules for transmission control.- Antilock braking system.- Traction control system.- Electronic stability program.- Automatic brake functions.- Hydraulic modu...

  9. 78 FR 36633 - National Automotive Sampling System

    Science.gov (United States)

    2013-06-18

    ... National Highway Traffic Safety Administration National Automotive Sampling System AGENCY: National Highway Traffic Safety Administration (NHTSA), Department of the Transportation (DOT). ACTION: Notice of public... regarding vehicle design and traffic safety. The NASS system currently has two components: the...

  10. 77 FR 37471 - National Automotive Sampling System

    Science.gov (United States)

    2012-06-21

    ... National Highway Traffic Safety Administration National Automotive Sampling System AGENCY: National Highway Traffic Safety Administration (NHTSA), Department of Transportation (DOT). ACTION: Notice and request for... make informed regulatory, program, and policy decisions regarding vehicle design and traffic...

  11. On credibility improvements for automotive navigation systems

    NARCIS (Netherlands)

    Schaub, Florian; Hipp, Markus; Kargl, Frank; Weber, Michael

    2012-01-01

    Automotive navigation systems are becoming ubiquitous as driver assistance systems. Vendors continuously aim to enhance route guidance by adding new features to their systems. However, we found in an analysis of current navigation systems that many share interaction weaknesses, which can damage the

  12. A listening test system for automotive audio

    DEFF Research Database (Denmark)

    Christensen, Flemming; Geoff, Martin; Minnaar, Pauli;

    2005-01-01

    This paper describes a system for simulating automotive audio through headphones for the purposes of conducting listening experiments in the laboratory. The system is based on binaural technology and consists of a component for reproducing the sound of the audio system itself and a component...

  13. Optimization and optimal control in automotive systems

    CERN Document Server

    Kolmanovsky, Ilya; Steinbuch, Maarten; Re, Luigi

    2014-01-01

    This book demonstrates the use of the optimization techniques that are becoming essential to meet the increasing stringency and variety of requirements for automotive systems. It shows the reader how to move away from earlier  approaches, based on some degree of heuristics, to the use of  more and more common systematic methods. Even systematic methods can be developed and applied in a large number of forms so the text collects contributions from across the theory, methods and real-world automotive applications of optimization. Greater fuel economy, significant reductions in permissible emissions, new drivability requirements and the generally increasing complexity of automotive systems are among the criteria that the contributing authors set themselves to meet. In many cases multiple and often conflicting requirements give rise to multi-objective constrained optimization problems which are also considered. Some of these problems fall into the domain of the traditional multi-disciplinary optimization applie...

  14. Developing the E-Delphi System: A Web-Based Forecasting Tool for Educational Research.

    Science.gov (United States)

    Chou, Chien

    2002-01-01

    Discusses use of the Delphi technique and describes the development of an electronic version, called e-Delphi, in which questionnaire construction and communication with panel members was accomplished using the Web. Explains system function and interface and discusses evaluation of the e-Delphi system. (Author/LRW)

  15. AGT 100 automotive gas turbine system development

    Science.gov (United States)

    Helms, H. E. G.

    1982-01-01

    General Motors is developing an automotive gas turbine system that can be an alternate powerplant for future automobiles. Work sponsored by DOE and administered by NASA Lewis Research Center is emphasizing small component aerodynamics and high-temperature structural ceramics. Reliability requirements of the AGT 100 turbine system include chemical and structural ceramic component stability in the gas turbine environment. The power train system, its configuration and schedule are presented, and its performance tested. The aerodynamic component development is reviewed with discussions on the compressor, turbine, regenerator, interturbine duct and scroll, and combustor. Ceramic component development is also reviewed, and production cost and required capital investment are taken into consideration.

  16. Compact Hybrid Automotive Propulsion System

    Science.gov (United States)

    Lupo, G.

    1986-01-01

    Power train proposed for experimental vehicle powered by internal combustion engine and electric motor. Intended for front-wheel drive automobile, power train mass produced using existing technology. System includes internal-combustion engine, electric motor, continuously variable transmission, torque converter, differential, and control and adjustment systems for electric motor and transmission. Continuously variable transmission integrated into hydraulic system that also handles power steering and power brakes. Batteries for electric motor mounted elsewhere in vehicle.

  17. Data base and slow controls system of the DELPHI VSAT and two-photon physics using DELPHI at LEP

    Energy Technology Data Exchange (ETDEWEB)

    Kronkvist, I.

    1996-09-01

    This thesis is based on work done at the DELPHI-detector at LEP 1991-1996. The first part describes the Very Small Angle Tagger (VSAT) and Small angle TIle Calorimeter (STIC), which are sub-detectors of DELPHI. The second part describes the structure of the DELPHI database, and how this was implemented for the VSAT detector. An automatic on-line calibration database updating procedure that was set up in 1991 in order to prepare for off-line analysis and luminosity calculations. The third part gives an introduction to the DELPHI slow controls system. This is a very complex system as a whole, and the implementation for VSAT showed a need for detector-specific software adapted to the custom-built hardware. As an example of how the system can be used in tracing problems and their origins, there is a section on the radiation damage sustained to two of the VSAT modules in September 1995. There is also a description on how the Small Angle Tagger (SAT) slow controls system was adapted to the STIC detector in early 1994 when the STIC was installed, replacing the SAT as the main DELPHI luminosity monitor. The forth and final part is about two-photon physics at DELPHI, with emphasis on a VSAT double-tagged event analysis. It shows the feasibility of looking for double-tagged events where the scattered particles are tagged in very small angles. The cross sections for such events are very small, but the data is consistent with Monte Carlo predictions using a combination of VDM, QPM, QCD + RPC models, and demonstrates the feasibility of making such investigations with future DELPHI data-recordings. 46 refs, 21 figs.

  18. Multi-channel automotive night vision system

    Science.gov (United States)

    Lu, Gang; Wang, Li-jun; Zhang, Yi

    2013-09-01

    A four-channel automotive night vision system is designed and developed .It is consist of the four active near-infrared cameras and an Mulit-channel image processing display unit,cameras were placed in the automobile front, left, right and rear of the system .The system uses near-infrared laser light source,the laser light beam is collimated, the light source contains a thermoelectric cooler (TEC),It can be synchronized with the camera focusing, also has an automatic light intensity adjustment, and thus can ensure the image quality. The principle of composition of the system is description in detail,on this basis, beam collimation,the LD driving and LD temperature control of near-infrared laser light source,four-channel image processing display are discussed.The system can be used in driver assistance, car BLIS, car parking assist system and car alarm system in day and night.

  19. Automotive Technology Evolved by Electrical and Electronic Systems

    Science.gov (United States)

    Teratani, Tatsuo; Okuma, Shigeru

    Automotive electrical and electronic systems, e.g. EHV, FCV, future X-By-Wire, have recently been introduced or planned in place of mechanical systems. Drivers are demanding environmental performance (fuel consumption and weight reduction), safety and comfort. For general use of the new technologies, evolution of the automotive technology is required, including energy conversion efficiency improvement, size and weight reduction of components, cost reduction and high reliability. This paper discusses and summarizes the next generation power systems, the future vehicle image, power source combinations, and problems to be solved for development of automotive electronics.

  20. Sustainable automotive energy system in China

    CERN Document Server

    CAERC, Tsinghua University

    2014-01-01

    This book identifies and addresses key issues of automotive energy in China. It covers demography, economics, technology and policy, providing a broad perspective to aid in the planning of sustainable road transport in China.

  1. Bosch automotive electrics and automotive electronics systems and components, networking and hybrid drive

    CERN Document Server

    2014-01-01

    The significance of electrical and electronic systems has increased considerably in the last few years and this trend is set to continue. The characteristics feature of innovative systems is the fact that they can work together in a network. This requires powerful bus systems that the electronic control units can use to exchange information. Networking and the various bus systems used in motor vehicles are the prominent new topic in the 5th edition of the "Automotive Electric, Automotive Electronics" technical manual. The existing chapters have also been updated, so that this new edition brings the reader up to date on the subjects of electrical and electronic systems in the motor vehicle. Content Electrical and electronical systems – Basic principles of networking - Examples of networked vehicles – Bus systems – Architecture of electronic systems – Mechatronics – Elektronics – Electronic control Units – Software – Sensors – Actuators – Hybrid drives – Vehicle electrical system – Start...

  2. Structural and functional characterization of Delphinus delphis hemoglobin system.

    Science.gov (United States)

    Manconi, Barbara; Messana, Irene; Maggiani, Federica; Olianas, Alessandra; Pellegrini, Mariagiuseppina; Crnjar, Roberto; Castagnola, Massimo; Giardina, Bruno; Sanna, Maria Teresa

    2009-11-01

    Structural analysis of the hemoglobin (Hb) system of Delphinus delphis revealed a high globin multiplicity: HPLC-electrospray ionization-mass spectrometry (ESI-MS) analysis evidenced three major beta (beta1 16,022 Da, beta2 16,036 Da, beta3 16,036 Da, labeled according to their progressive elution times) and two major alpha globins (alpha1 15,345 Da, alpha2 15,329 Da). ESI-tandem mass and nucleotide sequence analyses showed that beta2 globin differs from beta1 for the substitution Val126 --> Leu, while beta3 globin differs from beta2 for the isobaric substitution Lys65 --> Gln. The alpha2 globin differs from the alpha1 for the substitution Ser15 --> Ala. Anion-exchange chromatography allowed the separation of two Hb fractions and HPLC-ESI-MS analysis revealed that the fraction with higher pI (HbI) contained beta1, beta2 and both the alpha globins, and the fraction with lower pI (HbII) contained beta3 and both the alpha globins. Both D. delphis Hb fractions displayed a lower intrinsic oxygen affinity, a decreased effect of 2,3-BPG and a reduced cooperativity with respect to human HbA(0), with HbII showing the more pronounced differences. With respect to HbA(0), either the substitution Probeta5 --> Gly or the Probeta5 --> Ala is present in all the cetacean beta globins sequenced so far, and it has been hypothesized that position 5 of beta globins may have a role in the interaction with 2,3-BPG. Regarding the particularly lowered cooperativity of HbII, it is interesting to observe that the variant human HbA, characterized by the substitution Lysbeta65 --> Gln (HbJ-Cairo) has a decreased cooperativity with respect to HbA(0).

  3. Multifunctional Converter Drive for Automotive Electric Power Steering Systems

    NARCIS (Netherlands)

    Hackner, T.J.

    2013-01-01

    In this thesis it is shown that in the case of an automotive electric power steering system, critical pulse power loads can be decoupled from the power net with a storage element and a multifunctional converter. A multifunctional converter system is proposed because it uses the motor drive system as

  4. Deployment of ERP Systems at Automotive Industries, Security Inspection (Case Study: IRAN KHODRO Automotive Company)

    Science.gov (United States)

    Ali, Hatamirad; Hasan, Mehrjerdi

    Automotive industry and car production process is one of the most complex and large-scale production processes. Today, information technology (IT) and ERP systems incorporates a large portion of production processes. Without any integrated systems such as ERP, the production and supply chain processes will be tangled. The ERP systems, that are last generation of MRP systems, make produce and sale processes of these industries easier and this is the major factor of development of these industries anyhow. Today many of large-scale companies are developing and deploying the ERP systems. The ERP systems facilitate many of organization processes and make organization to increase efficiency. The security is a very important part of the ERP strategy at the organization, Security at the ERP systems, because of integrity and extensive, is more important of local and legacy systems. Disregarding of this point can play a giant role at success or failure of this kind of systems. The IRANKHODRO is the biggest automotive factory in the Middle East with an annual production over 600.000 cars. This paper presents ERP security deployment experience at the "IRANKHODRO Company". Recently, by launching ERP systems, it moved a big step toward more developments.

  5. 77 FR 13350 - Certain Automotive GPS Navigation Systems, Components Thereof, and Products Containing Same...

    Science.gov (United States)

    2012-03-06

    ... From the Federal Register Online via the Government Publishing Office INTERNATIONAL TRADE COMMISSION Certain Automotive GPS Navigation Systems, Components Thereof, and Products Containing Same... importation of certain automotive GPS navigation systems, components thereof, and products containing the...

  6. Advanced automotive diesel engine system study

    Science.gov (United States)

    1983-01-01

    A conceptual study of an advanced automotive diesel engine is discussed. The engine concept selected for vehicle installation was a supercharged 1.4 liter, 4 cylinder spark assisted diesel of 14:1 compression ratio. A compounding unit consisting of a Lysholm compressor and expander is connected to the engine crankshaft by a belt drive. The inlet air charge is heated by the expander exhaust gas via a heat exchanger. Four levels of technology achievement on the selected engine concept were evaluated, from state-of-the-art to the ideal case. This resulted in the fuel economy increasing from 53.2 mpg to 81.7 mpg, and the 0-60 mph time decreasing from 17.6 seconds to 10.9 seconds.

  7. GATE Center for Automotive Fuel Cell Systems at Virginia Tech

    Energy Technology Data Exchange (ETDEWEB)

    Nelson, Douglas [Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

    2011-09-30

    The Virginia Tech GATE Center for Automotive Fuel Cell Systems (CAFCS) achieved the following objectives in support of the domestic automotive industry: Expanded and updated fuel cell and vehicle technologies education programs; Conducted industry directed research in three thrust areas development and characterization of materials for PEM fuel cells; performance and durability modeling for PEM fuel cells; and fuel cell systems design and optimization, including hybrid and plug-in hybrid fuel cell vehicles; Developed MS and Ph.D. engineers and scientists who are pursuing careers related to fuel cells and automotive applications; Published research results that provide industry with new knowledge which contributes to the advancement of fuel cell and vehicle systems commercialization. With support from the Dept. of Energy, the CAFCS upgraded existing graduate course offerings; introduced a hands-on laboratory component that make use of Virginia Tech's comprehensive laboratory facilities, funded 15 GATE Fellowships over a five year period; and expanded our program of industry interaction to improve student awareness of challenges and opportunities in the automotive industry. GATE Center graduate students have a state-of-the-art research experience preparing them for a career to contribute to the advancement fuel cell and vehicle technologies.

  8. Energy autonomous sensor systems for automotive condition monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Fraeulin, Christian [A. RAYMOND GmbH und Co. KG, Weil am Rhein (Germany); Nurnus, Joachim; Punt, Wladimir [Micropelt GmbH, Freiburg (Germany)

    2011-07-01

    With the number of automotive sensors increasing, the effort for connecting all these sensors becomes more and more of an issue. A possible way to overcome these issues is to use energy-autonomous sensors that, besides the basic sensor function, include means to transmit the measurement data wirelessly as well as to generate the electrical energy they need to operate. Generating the electrical energy can be done by harvesting energy from ambient sources that are available in abundance, among others these can be heat and vibration. Although these principles are not new, so far little attempts have been made to incorporate these technologies into cost-sensitive segments like the automotive market. In this paper we present two energy-autonomous sensor demonstrators for automotive applications: a temperature sensor powered with a thermoelectric harvester, thus using a tiny amount of the physical property it wants to measure, and a pressure sensor powered by vibration energy. For both applications, managing the limited amount of available energy is one of the mayor tasks in developing this kind of systems. Therefore both systems use special means in hard- and software to cope with that task. While the automotive market is a very interesting one for energy-autonomous sensors, many other possible applications can be considered, among them the solar market and industrial condition monitoring. (orig.)

  9. The DELPHI Trigger System at LEP2 energies

    Science.gov (United States)

    Augustinus, A.; Canale, V.; Charpentier, P.; de Wulf, J.-P.; Fontanelli, F.; Formenti, F.; Gaspar, C.; Gavillet, P.; Goorens, R.; Laugier, J. P.; Musico, P.; Paganoni, M.; Sannino, M.; Valenti, G.; Delphi Trigger Group

    2003-12-01

    In this paper we describe the modifications carried out on the DELPHI trigger complex since the beginning of the high-energy runs of LEP. The descriptions of the trigger configurations and performances for the 2000 data taking period are also presented.

  10. The DELPHI Trigger System at LEP2 Energies

    CERN Document Server

    Augustinus, A; Charpentier, P; De Wulf, J P; Fontanelli, F; Formenti, F; Gaspar, C; Gavillet, P; Goorens, R; Laugier, J P; Musico, P; Paganoni, M; Sannino, M; Valenti, G

    2003-01-01

    In this paper we describe the modifications carried out on the DELPHI trigger complex since the beginning of the high energy runs of LEP. The descriptions of the trigger configurations and performances for the 2000 data taking period are also presented.

  11. Automotive Control Systems: For Engine, Driveline, and Vehicle

    Science.gov (United States)

    Kiencke, Uwe; Nielsen, Lars

    Advances in automotive control systems continue to enhance safety and comfort and to reduce fuel consumption and emissions. Reflecting the trend to optimization through integrative approaches for engine, driveline, and vehicle control, this valuable book enables control engineers to understand engine and vehicle models necessary for controller design, and also introduces mechanical engineers to vehicle-specific signal processing and automatic control. The emphasis on measurement, comparisons between performance and modeling, and realistic examples derive from the authors' unique industrial experience

  12. Automotive Stirling engine system component review

    Science.gov (United States)

    Hindes, Chip; Stotts, Robert

    1987-01-01

    The design and testing of the power and combustion control system for the basic Stirling engine, Mod II, are examined. The power control system is concerned with transparent operation, and the Mod II uses engine working gas pressure variation to control the power output of the engine. The main components of the power control system, the power control valve, the pump-down system, and the hydrogen stable system, are described. The combustion control system consists of a combustion air supply system and an air/fuel ratio control system, and the system is to maintain constant heater head temperature, and to maximize combustion efficiency and to minimize exhaust emissions.

  13. B/S system design based on Delphi/ASP%基于Delphi/ASP的B/S系统设计

    Institute of Scientific and Technical Information of China (English)

    陈振庆

    2006-01-01

    ASP技术是以internet/intranet为平台的web技术, VB/ASP、VC++/ASP开发B/S系统技术比较成熟,而系统介绍Delphi/ASP设计B/S系统的资料非常缺乏,文章介绍了Delphi与ASP间的通信技术以及Delphi/ASP环境下设计B/S系统的方法与技术.

  14. Hybrid intelligent system for Sale Forecasting using Delphi and adaptive Fuzzy Back-Propagation Neural Networks

    Directory of Open Access Journals (Sweden)

    Attariuas Hicham

    2012-12-01

    Full Text Available ales forecasting is one of the most crucial issues addressed in business. Control and evaluation of future sales still seem concerned both researchers and policy makers and managers of companies. this research propose an intelligent hybrid sales forecasting system Delphi-FCBPN sales forecast based on Delphi Method, fuzzy clustering and Back-propagation (BP Neural Networks with adaptive learning rate. The proposed model is constructed to integrate expert judgments, using Delphi method, in enhancing the model of FCBPN. Winter’s Exponential Smoothing method will be utilized to take the trend effect into consideration. The data for this search come from an industrial company that manufactures packaging. Analyze of results show that the proposed model outperforms other three different forecasting models in MAPE and RMSE measures.

  15. Air management system for automotive fuel cells; Luftversorgungssystem fuer Fahrzeugbrennstoffzellen

    Energy Technology Data Exchange (ETDEWEB)

    Kauder, K.; Temming, J. [Dortmund Univ. (Germany). Fachgebiet Fluidenergiemaschinen

    2001-07-01

    Fuel cells have attained a predominant position in the development of alternative automotive drives during the last few years. The Polymer Electrolyte Membrane Fuel Cell (PEMFC), preferred for automotive applications, requires compressed air for maximum efficiency. In most prototypes this is provided by twin-screw compressors. The article introduces the different types of fuel cells, and the system and requirements of mobile applications of fuel cells. The advantages and development potential of screw compressors are described. Furthermore concepts of a compressor-expander module based on screw machines are presented and discussed. (orig.) [German] Bei der Entwicklung alternativer Fahrzeugantriebe hat die Brennstoffzelle in den letzten Jahren eine vorherrschende Stellung eingenommen. Die Polymer-Elektrolyt-Membran Brennstoffzelle, PEMFC, die fuer automotive Anwendungen bevorzugt verwendet wird, benoetigt fuer einen optimalen Wirkungsgrad eine Druckluftversorgung. Als Compressor kommt derzeit insbesondere der Schraubenlader bzw. -compressor in verschiedenen Prototypenfahrzeugen zum Einsatz. Der Beitrag behandelt zunaechst die unterschiedlichen Brennstoffzellentypen, den Systemaufbau und die Anforderungen an die mobile Anwendung der Brennstoffzelle. Fuer diesen speziellen Anwendungsfall werden Vorteile und Entwicklungsmoeglichkeiten der Schraubenmaschine dargelegt. Davon ausgehend finden sich Konzepte zum Aufbau eines Compressor-Expander-Moduls (CEM) auf Basis der Schraubenmaschinen. (orig.)

  16. Influences of weather phenomena on automotive laser radar systems

    Science.gov (United States)

    Rasshofer, R. H.; Spies, M.; Spies, H.

    2011-07-01

    Laser radar (lidar) sensors provide outstanding angular resolution along with highly accurate range measurements and thus they were proposed as a part of a high performance perception system for advanced driver assistant functions. Based on optical signal transmission and reception, laser radar systems are influenced by weather phenomena. This work provides an overview on the different physical principles responsible for laser radar signal disturbance and theoretical investigations for estimation of their influence. Finally, the transmission models are applied for signal generation in a newly developed laser radar target simulator providing - to our knowledge - worldwide first HIL test capability for automotive laser radar systems.

  17. SOFTWARE AND HARDWARE DESIGN CHALLENGES IN AUTOMOTIVE EMBEDDED SYSTEM

    Directory of Open Access Journals (Sweden)

    Rajeshwari Hegde

    2011-10-01

    Full Text Available Modern automotives integrate large amount of electronic devices to improve the driving safety andcomfort. This growing number of Electronic Control Units (ECUs with sophisticated software escalatesthe vehicle system design complexity. In this paper we explain the complexity of ECUs in terms ofhardware and software and also we explore the possibility of Common Object Request Broker Architecture(CORBA architecture for the integration of add-on software in ECUs. This reduces the complexity of theembedded system in vehicles and eases the ECU integration by reducing the total number of ECUs in thevehicles.

  18. Simulation of Artificial Intelligence for Automotive Air-conditioning System

    Institute of Scientific and Technical Information of China (English)

    YUAN Xiao-mei; CHEN You-hua; CHEN Zhi-jiu

    2002-01-01

    The artificial intelligence is applied to the simulation of the automotive air-conditioning system ( AACS )According to the system's characteristics a model of AACS, based on neural network, is developed. Different control methods of AACS are discussed through simulation based on this model. The result shows that the neural- fuzzy control is the best one compared with the on-off control and conventional fuzzy control method.It can make the compartment's temperature descend rapidly to the designed temperature and the fluctuation is small.

  19. Solid State Energy Conversion Alliance Delphi SOFC

    Energy Technology Data Exchange (ETDEWEB)

    Steven Shaffer; Sean Kelly; Larry Chick; Subhasish Mukerjee; David Schumann

    2003-05-20

    The objective of Phase I under this project is to develop a 5 kW SOFC power system for a range of fuels and applications. During Phase I, the following will be accomplished: 1. Develop and demonstrate technology transfer efforts on a 5 kW stationary distributed power generation system that incorporates steam reforming of natural gas with piped-in water (Demonstration System A). 2. Initiate development of a 5 kW system for later mass-market automotive auxiliary power unit application, which will incorporate catalytic partial oxidation (CPO) reforming of gasoline, with anode exhaust gas injected into an ultra-lean burn internal combustion engine. This topical report covers work performed by Delphi Automotive Systems from January through June 2002 under DOE Cooperative Agreement DE-FC-02NT41246 for the 5 kW mass-market automotive (gasoline) auxiliary power unit. This report highlights technical results of the work performed under the following tasks for the automotive 5 kW system: 1. System Design and Integration 2. SOFC Stack Development 3. Reformer Development The next anticipated Technical Progress Report will be submitted January 30, 2003 and will include tasks contained within the cooperative agreement including development work on the Demonstration System A, if available.

  20. Development of Automotive Liquid Hydrogen Storage Systems

    Science.gov (United States)

    Krainz, G.; Bartlok, G.; Bodner, P.; Casapicola, P.; Doeller, Ch.; Hofmeister, F.; Neubacher, E.; Zieger, A.

    2004-06-01

    Liquid hydrogen (LH2) takes up less storage volume than gas but requires cryogenic vessels. State-of-the-art applications for passenger vehicles consist of double-wall cylindrical tanks that hold a hydrogen storage mass of up to 10 kg. The preferred shell material of the tanks is stainless steel, since it is very resistant against hydrogen brittleness and shows negligible hydrogen permeation. Therefore, the weight of the whole tank system including valves and heat exchanger is more than 100 kg. The space between the inner and outer vessel is mainly used for thermal super-insulation purposes. Several layers of insulation foils and high vacuums of 10-3 Pa reduce the heat entry. The support structures, which keep the inner tank in position to the outer tank, are made of materials with low thermal conductivity, e.g. glass or carbon fiber reinforced plastics. The remaining heat in-leak leads to a boil-off rate of 1 to 3 percent per day. Active cooling systems to increase the stand-by time before evaporation losses occur are being studied. Currently, the production of several liquid hydrogen tanks that fulfill the draft of regulations of the European Integrated Hydrogen Project (EIHP) is being prepared. New concepts of lightweight liquid hydrogen storage tanks will be investigated.

  1. Identifying indicators through modified Delphi technique in polytechnics system

    Science.gov (United States)

    Nashir, Irdayanti Mat; Mustapha, Ramlee; Yusoff, Abdullah

    2015-02-01

    This study aims to examine how the panel has been selected as experts in assessing indicators of innovative instructional leadership (IIL) administrator in polytechnics based on 222 items were obtained through previous studies. A total of eleven people were selected as the expert panels in a study where expert selection criteria based on their background in the leadership. Experts were interviewed separately. Interviews were carried out for a half hour in their offices. The data obtained were analyzed using Atlas Ti. Overall findings indicate experts agree that a total of 188 items and 14 indicators should be maintained in this innovative instructional leadership instruments and next by using Modified Delphi Technique. The instrument will then be analyzed to obtain findings on the perception of lecturers on every administrator innovative instructional leadership in their respective polytechnics.

  2. The DELPHI distributed information system for exchanging LEP machine related information

    Science.gov (United States)

    Dönszelmann, M.; Gaspar, C.

    1994-12-01

    An information management system was designed and implemented to interchange information between the DELPHI experiment at CERN and the monitoring/control system for the LEP (Large Electron Positron Collider) accelerator. This system is distributed and communicates with many different sources and destinations (LEP) using different types of communication. The system itself communicates internally via a communication system based on a publish-and-subscribe mechanism, DIM (Distributed Information Manager). The information gathered by this system is used for on-line as well as off-line data analysis. Therefore it logs the information to a database and makes it available to operators and users via DUI (DELPHI User Interface). The latter was extended to be capable of displaying "time-evolution" plots. It also handles a protocol, implemented using a finite state machine, SMI (State Management Interface), for (semi-)automatic running of the Data Acquisition System and the Slow Controls System.

  3. A New Design Method of Automotive Electronic Real-time Control System

    Science.gov (United States)

    Zuo, Wenying; Li, Yinguo; Wang, Fengjuan; Hou, Xiaobo

    Structure and functionality of automotive electronic control system is becoming more and more complex. The traditional manual programming development mode to realize automotive electronic control system can't satisfy development needs. So, in order to meet diversity and speedability of development of real-time control system, combining model-based design approach and auto code generation technology, this paper proposed a new design method of automotive electronic control system based on Simulink/RTW. Fristly, design algorithms and build a control system model in Matlab/Simulink. Then generate embedded code automatically by RTW and achieve automotive real-time control system development in OSEK/VDX operating system environment. The new development mode can significantly shorten the development cycle of automotive electronic control system, improve program's portability, reusability and scalability and had certain practical value for the development of real-time control system.

  4. Exhaust gas energy recovery system of pneumatic driving automotive engine

    Institute of Scientific and Technical Information of China (English)

    Han Yongqiang; Sun Wenxu; Li Qinghua; Zhong Ming; Hao Wei; Du Wenchang

    2011-01-01

    Almost the same quantity to net output work of energy has been carried out and wasted by exhaust gas in typical automotive engine. Recovering the energy from exhaust gas and converting to mechanical energy will dramatically increase the heat efficiency and decrease the fuel consumption. With the increasing demand of fuel conservation, exhaust gas energy recovery technologies have been a hot topic. At present, many researches have been focused on heating or cooling the cab, mechanical energy using and thermo-electronic converting. Unfortunately, the complicated transmission of mechanical energy using and the depressed efficiency of thermo-electronic converting restrict their widely applying. In this paper, a kind of exhaust gas energy recovery system of pneumatic driving automotive engine, in which highly compressed air acts as energy storing and converting carrier, has been established. Pneumatic driving motor can produce moderate speed and high torque output, which is compatible for engine using. The feasibility has been certificated by GT-Power simulation and laboratory testes. The technologies about increasing recovery efficiency have been discussed in detail. The results demonstrated that the in parallel exhaust gas energy recovery system, which is similar to the compound turbo-charger structure can recovery 8 to 10 percent of rated power output. At last, a comprehensive system,which includes Rankine cycle based power wheel cycle unit etc. , has been introduced.

  5. Modified Delphi study to determine optimal data elements for inclusion in an emergency management database system

    Directory of Open Access Journals (Sweden)

    A. Jabar

    2012-03-01

    Conclusion: The use of a modified Expert Delphi study achieved consensus in aspects of hospital institutional capacity that can be translated into practical recommendations for implementation by the local emergency management database system. Additionally, areas of non-consensus have been identified where further work is required. This purpose of this study is to contribute to and aid in the development of this new system.

  6. The Determination of Relevant Goals and Criteria Used to Select an Automated Patient Care Information System: A Delphi Approach

    OpenAIRE

    Chocholik, Joan K.; Bouchard, Susan E.; Tan, Joseph K. H.; Ostrow, David N.

    1999-01-01

    Objectives: To determine the relevant weighted goals and criteria for use in the selection of an automated patient care information system (PCIS) using a modified Delphi technique to achieve consensus.

  7. Online survey system for image-based clinical guideline studies using the Delphi method.

    Science.gov (United States)

    Harper, Todd M; Teng, Chia-Chi

    2011-01-01

    The increasing use of health information technology (HIT) is due to a rising interest in improving the quality of health care. HIT has the potential to reduce cost and transform services. Proper clinical support systems will contribute to the meaningful use of HIT systems by providing a wide array of data to clinicians for the diagnosis and treatments. Clinical guidelines, created by a consensus of experts, can be put in place to assist physicians in making clinical decisions. Delphi methods are commonly used to create consensus from surveys completed by a team of experts. Image based studies could create guidelines that standardize severity, deformity or other clinical classifications. As these studies were traditionally conducted using paper based media, the cost and time requirement often make the process impractical. Ware proposing a web based system to aid medical researchers in conducting image based Delphi studies for improved clinical guidelines and decision support.

  8. Running experience with the DELPHI pixel detector reflections on design characteristics and system features

    CERN Document Server

    Heuser, J M

    1999-01-01

    The DELPHI experiment at LEP is the first collider experiment with hybrid pixel detectors contributing to its track reconstruction. The pixel detector has been installed in 1996 with the final DELPHI silicon tracker, an assembly of microstrip, ministrip and pixel detectors optimized for the operation at LEP2. It was completed for the physics period in 1997. The pixel detector comprises 1.2 million detector cells of 330*330 mu m/sup 2/. 152 detector modules are arranged in 4 inclined cone-shaped layers which cover polar angles from 10 degrees to 25 degrees . Experience on the system's features has been gained during three years of operation. The article intends to provide information on positive and critical aspects which might be useful for designers of pixel detector systems in forthcoming experiments. (4 refs).

  9. Super-capacitors as an energy storage for fuel cell automotive hybrid electrical system

    Energy Technology Data Exchange (ETDEWEB)

    Thounthong, P.; Rael, St.; Davat, B. [Institut National Polytechnique, GREEN-INPL-CNRS (UMR 7037), 54 - Vandoeuvre les Nancy (France)

    2004-07-01

    The design, implementation and testing of a purely super-capacitors energy storage system for automotive system having a fuel cell as main source are presented. The system employs a super-capacitive storage device, composed of six components (3500 F, 2.5 V, 400 A) associated in series. This device is connected to automotive 42 V DC bus by a 2-quadrant DC-DC converter. The control structure of the system is realised by means of analogical and digital control. The experimental results show that super-capacitors are suitable as energy storage device for fuel cell automotive electrical system. (authors)

  10. Characterization of three-way automotive catalysts

    Energy Technology Data Exchange (ETDEWEB)

    Kenik, E.A.; More, K.L. [Oak Ridge National Lab., TN (United States); LaBarge, W. [Delphi Automotive Systems, Flint, MI (United States)] [and others

    1997-04-01

    The CRADA between Delphi Automotive Systems (Delphi; formerly General Motors - AC Delco, Systems) and Lockheed Martin Energy Research (LMER) on automotive catalysts was completed at the end of FY96, after a ten month, no-cost extension. The CRADA was aimed at improved performance and lifetime of noble metal based three-way-catalysts (TWC), which are the primary catalytic system for automotive emission control systems. While these TWC can meet the currently required emission standards, higher than optimum noble metal loadings are often required to meet lifetime requirements. In addition, more stringent emission standards will be imposed in the near future, demanding improved performance and service life from these catalysts. Understanding the changes of TWC conversion efficiency with ageing is a critical need in improving these catalysts. Initially in a fresh catalyst, the active material is often distributed on a very fine scale, approaching single atoms or small atomic clusters. As such, a wide range of analytical techniques have been employed to provide high spatial resolution characterization of the evolving state of the catalytic material.

  11. SOLID STATE ENERGY CONVERSION ALLIANCE DELPHI SOFC

    Energy Technology Data Exchange (ETDEWEB)

    Steven Shaffer; Sean Kelly; Subhasish Mukerjee; David Schumann; H. Skip Mieney

    2003-06-09

    The objective of Phase I under this project is to develop a 5 kW Solid Oxide Fuel Cell power system for a range of fuels and applications. During Phase I, the following will be accomplished: Develop and demonstrate technology transfer efforts on a 5 kW stationary distributed power generation system that incorporates steam reforming of natural gas with piped-in water (Demonstration System A); and Initiate development of a 5 kW system for later mass-market automotive auxiliary power unit application, which will incorporate Catalytic Partial Oxidation (CPO) reforming of gasoline, with anode exhaust gas injected into an ultra-lean burn internal combustion engine. This technical progress report covers work performed by Delphi from July through December 2002 under Department of Energy Cooperative Agreement DE-FC-02NT41246 for the 5 kW mass-market automotive (gasoline) auxiliary power unit. This report highlights technical results of the work performed under the following tasks for the automotive 5 kW system: Task 1--System Design and Integration; Task 2--Solid Oxide Fuel Cell Stack Developments; Task 3--Reformer Developments; Task 4--Development of Balance of Plant (BOP) Components; Task 5--Manufacturing Development (Privately Funded); Task 6--System Fabrication; and Task 7--System Testing.

  12. Towards the Formal Verification of a Distributed Real-Time Automotive System

    Science.gov (United States)

    Endres, Erik; Mueller, Christian; Shadrin, Andrey; Tverdyshev, Sergey

    2010-01-01

    We present the status of a project which aims at building, formally and pervasively verifying a distributed automotive system. The target system is a gate-level model which consists of several interconnected electronic control units with independent clocks. This model is verified against the specification as seen by a system programmer. The automotive system is implemented on several FPGA boards. The pervasive verification is carried out using combination of interactive theorem proving (Isabelle/HOL) and model checking (LTL).

  13. A volumetric flow sensor for automotive injection systems

    Science.gov (United States)

    Schmid, U.; Krötz, G.; Schmitt-Landsiedel, D.

    2008-04-01

    For further optimization of the automotive power train of diesel engines, advanced combustion processes require a highly flexible injection system, provided e.g. by the common rail (CR) injection technique. In the past, the feasibility to implement injection nozzle volumetric flow sensors based on the thermo-resistive measurement principle has been demonstrated up to injection pressures of 135 MPa (1350 bar). To evaluate the transient behaviour of the system-integrated flow sensors as well as an injection amount indicator used as a reference method, hydraulic simulations on the system level are performed for a CR injection system. Experimentally determined injection timings were found to be in good agreement with calculated values, especially for the novel sensing element which is directly implemented into the hydraulic system. For the first time pressure oscillations occurring after termination of the injection pulse, predicted theoretically, could be verified directly in the nozzle. In addition, the injected amount of fuel is monitored with the highest resolution ever reported in the literature.

  14. Vibration isolation of automotive vehicle engine using periodic mounting systems

    Science.gov (United States)

    Asiri, S.

    2005-05-01

    Customer awareness and sensitivity to noise and vibration levels have been raised through increasing television advertisement, in which the vehicle noise and vibration performance is used as the main market differentiation. This awareness has caused the transportation industry to regard noise and vibration as important criteria for improving market shares. One industry that tends to be in the forefront of the technology to reduce the levels of noise and vibration is the automobile industry. Hence, it is of practical interest to reduce the vibrations induced structural responses. The automotive vehicle engine is the main source of mechanical vibrations of automobiles. The engine is vulnerable to the dynamic action caused by engine disturbance force in various speed ranges. The vibrations of the automotive vehicle engines may cause structural failure, malfunction of other parts, or discomfort to passengers because of high level noise and vibrations. The mounts of the engines act as the transmission paths of the vibrations transmitted from the excitation sources to the body of the vehicle and passengers. Therefore, proper design and control of these mounts are essential to the attenuation of the vibration of platform structures. To improve vibration resistant capacities of engine mounting systems, vibration control techniques may be used. For instance, some passive and semi-active dissipation devices may be installed at mounts to enhance vibration energy absorbing capacity. In the proposed study, a radically different concept is presented whereby periodic mounts are considered because these mounts exhibit unique dynamic characteristics that make them act as mechanical filters for wave propagation. As a result, waves can propagate along the periodic mounts only within specific frequency bands called the "Pass Bands" and wave propagation is completely blocked within other frequency bands called the "Stop Bands". The experimental arrangements, including the design of

  15. Start-up analysis for automotive PEM fuel cell systems

    Science.gov (United States)

    De Francesco, M.; Arato, E.

    The development of fuel cell cars can play an important role in resolving transport problems, due to the high environmental compatibility and high efficiency of this kind of vehicle. Among the different types of fuel cells, proton-exchange membrane fuel cells (PEMFCs) are considered the best solution for automotive applications at the moment. In this work, constructive criteria are discussed with the aim of obtaining a power generation module adaptable to a wide range of cars. A particular problem in accomplishing the overall project is represented by the definition of the compressor system for air feeding. In this work, the design approach to the problem will be delineated: some options are reviewed and the best solution is analysed. The transient response of the system (fuel cell and compressor) is investigated in order to optimise the start-up running through a model of a fuel cell stack and a compressor simulation. The model and its results are proposed as a work procedure to solve the problem, by varying external conditions: in fact, to perform the system start-up under stable conditions, the air relative humidity and temperature must be maintained in a proper range of values. The approach here presented has been utilised for the definition of the characteristics of the power module and layout of a middle-size hybrid city bus in the framework of a project promoted by the European Union.

  16. Evaluation of an attributive measurement system in the automotive industry

    Science.gov (United States)

    Simion, C.

    2016-08-01

    Measurement System Analysis (MSA) is a critical component for any quality improvement process. MSA is defined as an experimental and mathematical method of determining how much the variation within the measurement process contributes to overall process variability and it falls into two categories: attribute and variable. Most problematic measurement system issues come from measuring attribute data, which are usually the result of human judgment (visual inspection). Because attributive measurement systems are often used in some manufacturing processes, their assessment is important to obtain the confidence in the inspection process, to see where are the problems in order to eliminate them and to guide the process improvement. It was the aim of this paper to address such a issue presenting a case study made in a local company from the Sibiu region supplying products for the automotive industry, specifically the bag (a technical textile component, i.e. the fabric) for the airbag module. Because defects are inherent in every manufacturing process and in the field of airbag systems a minor defect can influence their performance and lives depend on the safety feature, there is a stringent visual inspection required on the defects of the bag material. The purpose of this attribute MSA was: to determine if all inspectors use the same criteria to determine “pass” from “fail” product (i.e. the fabric); to assess company inspection standards against customer's requirements; to determine how well inspectors are conforming to themselves; to identify how inspectors are conforming to a “known master,” which includes: how often operators ship defective product, how often operators dispose of acceptable product; to discover areas where training is required, procedures must be developed and standards are not available. The results were analyzed using MINITAB software with its module called Attribute Agreement Analysis. The conclusion was that the inspection process must

  17. UTC Power/Delphi SECA CBS Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Gorman, Michael; Kerr, Rich

    2013-04-04

    The subject report summarizes the results of solid oxide fuel cell development conducted by UTC Power in conjunction with Delphi Automotive Systems under a cost-share program with from October 2008 through March of 2013. Over that period Delphi Automotive Systems developed a nearly four times larger area solid oxide fuel cell stack capable of operating on pre-reformed natural gas and simulated coal gas with durability demonstrated to 5,000 hours and projected to exceed 10,000 hours. The new stack design was scaled to 40-cell stacks with power output in excess of 6.25kW. Delphi also made significant strides in improving the manufacturability, yield and production cost of these solid oxide fuel cells over the course of the program. Concurrently, UTC Power developed a conceptual design for a 120 MW Integrated Gasification Fuel Cell (IGFC) operating on coal syngas with as high as 57% Higher Heating Value (HHV) efficiency as a measure of the feasibility of the technology. Subsequently a 400 kW on-site system preliminary design with 55% Lower Heating Value (LHV) efficiency operating on natural gas was down-selected from eighteen candidate designs. That design was used as the basis for a 25kW breadboard power plant incorporating four Delphi cell stacks that was tested on natural gas before the program was discontinued due to the sale of UTC Power in early 2013. Though the program was cut short of the endurance target of 3,000 hours, many aspects of the technology were proven including: large-area, repeatable cell manufacture, cell stack operation on simulated coal gas and natural gas and integrated power plant operation on natural gas. The potential of the technology for high efficiency stationary electric power generation is clear. Acceptable production costs, durability, and reliability in real world environments are the remaining challenges to commercialization.

  18. 75 FR 20383 - Delphi Thermal Systems Currently Known as General Motors Components Holdings LLC, Lockport...

    Science.gov (United States)

    2010-04-19

    ... related to the production of automotive heat exchanger products and HVAC modules. New information shows... competitive with automotive heat exchanger products and HVAC modules. The amended notice applicable to TA-W-63...

  19. Dynamic design of automotive systems: Engine mounts and structural joints

    Indian Academy of Sciences (India)

    R Singh

    2000-06-01

    Dynamic design and vibro-acoustic modelling issues for automotive structures are illustrated via two case studies. The first case examines the role performance of passive and adaptive hydraulic engine mounts. In the second, the importance of welded joints and adhesives in vehicle bodies and chassis structures is highlighted via generic 'T' and 'L' beams assemblies. In each case, analytical and experimental results are presented. Unresolved research issues are briefly discussed.

  20. Delphi type methodology to develop consensus on the future design of EMS systems in the United Kingdom

    OpenAIRE

    Hassan, T.; Barnett, D.

    2002-01-01

    Design: A Delphi questionnaire design with two rounds to gain a consensus of opinion. Investigation of four aspects of EMS design is reported—type of response to a priority based dispatch category, transportation options, enhancement of paramedic skills, and structure of a first responder system.

  1. 利用Delphi 5开发教务师资管理软件%Develop Teacher's Management System Using Delphi 5

    Institute of Scientific and Technical Information of China (English)

    雷建云; 魏燕; 赵丹青

    2001-01-01

    This paper states the overall design requirement of a teacher's management system from the angle of safety, function of the software, compatibility, expandbility and maintence etc., also give the characteristic of teacher's database design and auxiliary software tools design.%从安全性、软件功能、兼容性、可维护性和易操作性等方面提出了利用Delphi 5开发教务师资管理软件的设计要求、并且给出了师资数据库的设计方案,指出了辅助工具设计的特点.

  2. Integration of different simulation tools for the development of next generation Automotive Safety Systems

    NARCIS (Netherlands)

    Noort, M. van; Versteegh, T.; Tideman, M.

    2012-01-01

    The development of intelligent in-car systems and connected vehicle systems is of major concern to the automotive industry. These systems need to function properly in a vast amount of different traffic scenarios, which involves interaction with other traffic actors, both human and technical, in a la

  3. Design of an FMCW radar baseband signal processing system for automotive application.

    Science.gov (United States)

    Lin, Jau-Jr; Li, Yuan-Ping; Hsu, Wei-Chiang; Lee, Ta-Sung

    2016-01-01

    For a typical FMCW automotive radar system, a new design of baseband signal processing architecture and algorithms is proposed to overcome the ghost targets and overlapping problems in the multi-target detection scenario. To satisfy the short measurement time constraint without increasing the RF front-end loading, a three-segment waveform with different slopes is utilized. By introducing a new pairing mechanism and a spatial filter design algorithm, the proposed detection architecture not only provides high accuracy and reliability, but also requires low pairing time and computational loading. This proposed baseband signal processing architecture and algorithms balance the performance and complexity, and are suitable to be implemented in a real automotive radar system. Field measurement results demonstrate that the proposed automotive radar signal processing system can perform well in a realistic application scenario.

  4. Review of Special Standards in Quality Management Systems Audits in Automotive Production

    Science.gov (United States)

    Šurinová, Yulia

    2013-12-01

    Quality management systems (QMS) in automotive industry generally have several differences in comparison with other industrial branches. Different customers have their own specific requirements, including requirements for quality audits. Audits are one of the coretools of quality management to make the PDCA (Plan - Do - Check - Act) cycle work. As a matter of fact, compliance with ISO/TS 16949:2009 requirements is a condition for supplying the automotive industry. However, there are some standards which co-exist together with the ISO 9001 based management systems and technical specification for QMS in automotive ISO/TS16949. Which are those specific standards in automotive industry and what standard to use and why - those are the questions to be answered in this paper. The aim of the paper is to review what standards are used for audits implementation in automotive industry in the Slovak Republic, and why the organizations keep following those "extra" standards even if certification for ISO/TS 16949 is required by all the car makers. The paper is structured as follows: after short introduction to the topic and related terms, presented is our methodology. . In the third section, the achieved results are discussed. And finally, the principal findings of the paper, limitations and conclusions are presented.

  5. A method for Perceptual Assessment of Automotive Audio Systems and Cabin Acoustics

    DEFF Research Database (Denmark)

    Kaplanis, Neofytos; Bech, Søren; Sakari, Tervo;

    2016-01-01

    This paper reports the design and implementation of a method to perceptually assess the acoustical prop- erties of a car cabin and the subsequent sound reproduction properties of automotive audio systems. Here, we combine Spatial Decomposition Method and Rapid Sensory Analysis techniques. The for......This paper reports the design and implementation of a method to perceptually assess the acoustical prop- erties of a car cabin and the subsequent sound reproduction properties of automotive audio systems. Here, we combine Spatial Decomposition Method and Rapid Sensory Analysis techniques...

  6. Fault self-diagnosis designing method of the automotive electronic control system

    Science.gov (United States)

    Ding, Yangyan; Yang, Zhigang; Fu, Xiaolin

    2005-12-01

    The fault self-diagnosis system is an important component of an the automotive electronic control system. Designers of automotive electronic control systems urgently require or need a complete understanding of the self-diagnosis designing method of the control system in order to apply it in practice. Aiming at this exigent need, self-diagnosis methods of designing sensors, electronic control unit (ECU), and actuators, which are the three main parts of automotive electronic control systems, are discussed in this paper. According to the fault types and characteristics of commonly used sensors, self-diagnosis designing methods of the sensors are discussed. Then fault diagnosis techniques of sensors utilizing signal detection and analytical redundancy are analysed and summarized respectively, from the viewpoint of the self-diagnosis designing method. Also, problems about failure self-diagnosis of ECU are analyzed here. For different fault types of an ECU, setting up a circuit monitoring method and a self-detection method of the hardware circuit are adopted respectively. Using these two methods mentioned above, a real-time and on-line technique of failure self-diagnosis is presented. Furthermore, the failure self-diagnosis design method of ECU are summarized. Finally, common faults of actuators are analyzed and the general design method of the failure self-diagnosis system is presented. It is suggested that self-diagnosis design methods relative to the failure of automotive electronic control systems can offer a useful approach to designers of control systems.

  7. Engine Tune-Up Service. Unit 5: Fuel and Carburetion Systems. Student Guide. Automotive Mechanics Curriculum.

    Science.gov (United States)

    Goodson, Ludy

    This student guide is for Unit 5, Fuel and Carburetion Systems, in the Engine Tune-Up Service portion of the Automotive Mechanics Curriculum. It deals with inspecting and servicing the fuel and carburetion systems. A companion review exercise book and posttests are available separately as CE 031 218-219. An introduction tells how this unit fits…

  8. Millwater Pumping System Optimization Improves Efficiency and Saves Energy at an Automotive Glass Plant

    Energy Technology Data Exchange (ETDEWEB)

    None

    2003-03-01

    In 2001, the Visteon automotive glass plant in Nashville, Tennessee renovated its millwater pumping system. This improvement saved the plant $280,000 annually in energy and operating costs, reduced annual energy consumption by 3.2 million kilowatt-hours, reduced water consumption, improved system performance, and reduced use of water treatment chemicals.

  9. VISA Final Report: Fully Integrated Power Electronic Systems in Automotive Electronics

    NARCIS (Netherlands)

    Waffenschmidt, E.

    2011-01-01

    This report summarizes the activities related to the public funded project “Vollintegrierte leistungselektronische Systeme in der Automobilelektronik – VISA” (Fully Integrated Power Electronic Systems in Automotive Electronics). Aim of the project is to investigate the integration of components into

  10. Model predictive control of a waste heat recovery system for automotive diesel engines

    NARCIS (Netherlands)

    Feru, E.; Willems, F.; De Jager, B.; Steinbuch, M.

    2014-01-01

    In this paper, a switching Model Predictive Control strategy is designed for an automotive Waste Heat Recovery system with two parallel evaporators. The objective is to maximize Waste Heat Recovery system output power, while satisfying safe operation under highly dynamic disturbances from the engine

  11. Development of an on-line measuring and monitoring system for fouling based on Delphi

    Science.gov (United States)

    Wang, Yuanyuan; Wang, Jianguo

    2010-12-01

    The presence of fouling reduced the heat transfer capability of heat transfer equipments and increased the flow resistance of the medium. Thus the resulting series of economic losses received worldwide attention of the relevant heat transfer industry and countries. For the heating system fouling, direct measurement is nearly impossible. And it is extremely difficulty of structuring mathematic model. Although there are existing monitoring methods, results are not satisfactory. This paper intends to develop a new on-line measuring and monitoring system for heating system fouling. The operating theory of this on-line measuring and monitoring system is based on the soft-sensor technology and Expert System. We select some easily measurements as primary variables, such as pressures, flow rates and temperatures. Through some algorithms, we obtained dozens of secondary variables, for example, the coefficient of flow resistance, the efficiency and cost of heating system and so on. Based on these variables, we construct the knowledge base of this System. This system mainly uses Delphi and Excel as development tools. Now, the system is running well in some heating station, and has reached the expecting result.

  12. THE ESTIMATION OF THE AUTOMOTIVE FUEL DEMAND IN IRAN: ALMOST IDEAL DEMAND SYSTEM APPROACH

    Directory of Open Access Journals (Sweden)

    Saeedeh Ahmadi

    2011-10-01

    Full Text Available This paper analyzes the demand for fuels in Iran automotive sector, using the Almost Ideal Demand System to estimate price and income elasticities for all the available fuels in the automotive sector: gasoline, automotive gas oil and Liquefied Petroleum Gas (LPG. These estimates can be very useful in predicting the overall impacts of price policies designed to reduce fuel consumption and to address concerns of carbon emissions or energy security. Empirical results indicate all own-price elasticities are negative and significant at 5% level. The own-price elasticity for gas oil, gasoline and LPG were estimated by about -0.22, -1.01 and -3.58, respectively. The findings also show that gasoline and gas oil are normal goods and LPG being an inferior good.

  13. IT Systems in Aid of Welding Processes Quality Management in the Automotive Industry

    Directory of Open Access Journals (Sweden)

    Restecka M.

    2016-12-01

    Full Text Available The most important issue for the producers nowadays is to meet the requirements of customers, satisfying their perceived but also the unperceived needs. In order to control the quality of welding processes correctly one must have knowledge of welding drawings, symbols, designs of welded joints, welding procedures, requirements set in codes and standards, also have knowledge of the techniques of inspection and testing connected with the automotive industry. The article shows ways to increase quality in the industry through the use of robotization and computerization. Presented examples and application of IT systems in aid of welding processes quality management in the automotive industry.

  14. Advanced Gas Turbine (AGT) powertrain system development for automotive applications report

    Science.gov (United States)

    1984-01-01

    This report describes progress and work performed during January through June 1984 to develop technology for an Advanced Gas Turbine (AGT) engine for automotive applications. Work performed during the first eight periods initiated design and analysis, ceramic development, component testing, and test bed evaluation. Project effort conducted under this contract is part of the DOE Gas Turbine Highway Vehicle System Program. This program is oriented at providing the United States automotive industry the high-risk long-range techology necessary to produce gas turbine engines for automobiles with reduced fuel consumption and reduced environmental impact. Technology resulting from this program is intended to reach the marketplace by the early 1990s.

  15. Delphi cookbook

    CERN Document Server

    Teti, Daniele

    2014-01-01

    Intended to refresh the basics of Delphi as well as advance your knowledge to the next level, it is assumed you will know RAD studio and the Object Pascal language. However, if you are not an experienced RAD studio programmer this accessible guide will still develop those initial crucial skills.

  16. Building Responsive Health Systems to Help Communities Affected by Migration: An International Delphi Consensus

    Science.gov (United States)

    Pottie, Kevin; Hui, Charles; Rahman, Prinon; Ingleby, David; Akl, Elie A.; Russell, Grant; Ling, Li; Wickramage, Kolitha; Mosca, Davide; Brindis, Claire D.

    2017-01-01

    Persons affected by migration require health systems that are responsive and adaptable to the needs of both disadvantaged migrants and non-migrant populations. The objective of this study is to support health systems for populations affected by migration. Materials and Methods: An international Delphi consensus process was used to identify policy approaches to improve health systems for populations affected by migration. Participants were leading migrant health experts from Americas, Europe, Middle East, Asia, and Australasia. We calculated average ranking scores and qualitatively analyzed open-ended questions. Results: Participants identified the following key areas as priorities for policy development: health inequities, system discrimination, migrant related health data, disadvantaged migrant sub-groups, and considerations for disadvantaged non-migrant populations. Highly ranked items to improve health systems were: Health Equity Impact Assessment, evidence based guidelines, and the International Organization for Migration annual reports. Discussion: Policy makers need tools, data and resources to address health systems challenges. Policies need to avoid preventable deaths of migrants and barriers to basic health services. PMID:28165380

  17. An approach for functional safety improvement of an existing automotive system

    NARCIS (Netherlands)

    Khabbaz Saberi, A.; Luo, Y.; Pawel Cichosz, F.; Brand, M. van den; Jansen, S.T.H.

    2015-01-01

    Safety of automotive systems is becoming more involved, specially for the case of autonomous vehicles. The ISO 26262 standard offers a systematic approach for designing a safe road vehicle (or subsystems of a car) from design phase through its production. However, providing functional safety (accord

  18. Fourth international symposium on automotive propulsion systems. Volume I. [Eighteen papers

    Energy Technology Data Exchange (ETDEWEB)

    1977-01-01

    A pre-conference draft is given (in five volumes) of the proceedings of the 4th International Symposium on Automotive Propulsion Systems, held April 18-22, 1977, in Washington, D.C. Volume I contains eighteen papers; a separate abstract was prepared for each for ERDA Energy Research Abstracts (ERA).

  19. An approach for functional safety improvement of an existing automotive system

    NARCIS (Netherlands)

    Khabbaz Saberi, A.; Luo, Y.; Pawel Cichosz, F.; Brand, M. van den; Jansen, S.T.H.

    2015-01-01

    Safety of automotive systems is becoming more involved, specially for the case of autonomous vehicles. The ISO 26262 standard offers a systematic approach for designing a safe road vehicle (or subsystems of a car) from design phase through its production. However, providing functional safety (accord

  20. Integrated Automotive High-Power LED-Lighting Systems in 3D-MID Technology

    NARCIS (Netherlands)

    Thomas, W.

    2014-01-01

    The growing energy consumption of lighting as well as rising luminous efficacies and -fluxes of high-power Light Emitting Diodes (LEDs) have contributed to the widespread use of LEDs in modern lighting systems. One of the most prominent users of the LED-technology is automotive (exterior) lighting.

  1. Demand forecasting for automotive sector in Malaysia by system dynamics approach

    Energy Technology Data Exchange (ETDEWEB)

    Zulkepli, Jafri, E-mail: zhjafri@uum.edu.my; Abidin, Norhaslinda Zainal, E-mail: nhaslinda@uum.edu.my [School of Quantitative Sciences, Universiti Utara Malaysia, Sintok, Kedah (Malaysia); Fong, Chan Hwa, E-mail: hfchan7623@yahoo.com [SWM Environment Sdn. Bhd.Level 17, Menara LGB, Taman Tun Dr. Ismail Kuala Lumpur (Malaysia)

    2015-12-11

    In general, Proton as an automotive company needs to forecast future demand of the car to assist in decision making related to capacity expansion planning. One of the forecasting approaches that based on judgemental or subjective factors is normally used to forecast the demand. As a result, demand could be overstock that eventually will increase the operation cost; or the company will face understock, which resulted losing their customers. Due to automotive industry is very challenging process because of high level of complexity and uncertainty involved in the system, an accurate tool to forecast the future of automotive demand from the modelling perspective is required. Hence, the main objective of this paper is to forecast the demand of automotive Proton car industry in Malaysia using system dynamics approach. Two types of intervention namely optimistic and pessimistic experiments scenarios have been tested to determine the capacity expansion that can prevent the company from overstocking. Finding from this study highlighted that the management needs to expand their production for optimistic scenario, whilst pessimistic give results that would otherwise. Finally, this study could help Proton Edar Sdn. Bhd (PESB) to manage the long-term capacity planning in order to meet the future demand of the Proton cars.

  2. Demand forecasting for automotive sector in Malaysia by system dynamics approach

    Science.gov (United States)

    Zulkepli, Jafri; Fong, Chan Hwa; Abidin, Norhaslinda Zainal

    2015-12-01

    In general, Proton as an automotive company needs to forecast future demand of the car to assist in decision making related to capacity expansion planning. One of the forecasting approaches that based on judgemental or subjective factors is normally used to forecast the demand. As a result, demand could be overstock that eventually will increase the operation cost; or the company will face understock, which resulted losing their customers. Due to automotive industry is very challenging process because of high level of complexity and uncertainty involved in the system, an accurate tool to forecast the future of automotive demand from the modelling perspective is required. Hence, the main objective of this paper is to forecast the demand of automotive Proton car industry in Malaysia using system dynamics approach. Two types of intervention namely optimistic and pessimistic experiments scenarios have been tested to determine the capacity expansion that can prevent the company from overstocking. Finding from this study highlighted that the management needs to expand their production for optimistic scenario, whilst pessimistic give results that would otherwise. Finally, this study could help Proton Edar Sdn. Bhd (PESB) to manage the long-term capacity planning in order to meet the future demand of the Proton cars.

  3. Sales Forecasting Based on ERP System through Delphi, fuzzy Clustering and Back-Propagation Neural Networks with adaptive learning rate

    Directory of Open Access Journals (Sweden)

    Attariuas Hicham

    2012-11-01

    Full Text Available In recent years, there has been a strong tendency by companies to use centralized management systems like Enterprise resource planning (ERP. ERP systems offer a comprehensive and simplified process managements and extensive functional coverage. Sales management module is an important element business management of ERP. This paper describes an intelligent hybrid sales forecasting system ERP-FCBPN sales forecast based on architecture of ERP through Delphi, fuzzy clustering and Back-propagation (BP Neural Networks with adaptive learning rate (FCBPN. The proposed approach is composed of three stages: (1 Stage of data collection: Data collection will be implemented from the fields (attributes existing at the interfaces (Tables the database of the ERP. Collection of Key factors that influence sales be made using the Delphi method; (2 Stage of Data preprocessing: Winter Exponential Smoothing method will be utilized to take the trend effect into consideration. (3 Stage of learning by FCBPN: We use hybrid sales forecasting system based on Delphi, fuzzy clustering and Back-propagation (BP Neural Networks with adaptive learning rate (FCBPN. The data for this study come from an industrial company that manufactures packaging. Experimental results show that the proposed model outperforms the previous and traditional approaches. Therefore, it is a very promising solution for industrial forecasting.

  4. Dynamic Simulation of a Proton Exchange Membrane Fuel Cell System For Automotive Applications

    DEFF Research Database (Denmark)

    Rabbani, Raja Abid; Rokni, Masoud

    2012-01-01

    A dynamic model of the PEMFC system is developed to investigate the behaviour and transient response of the fuel cell system for automotive applications. The system accounts for the fuel cell stack with coolant, humidifier, heat exchangers and pumps. Governing equations for fuel cell and humidifier...... sufficient insight for further in-depth analysis of PEMFC and prove to be a basis for efficient control and design methodologies....

  5. DELPHI Exhibition

    CERN Multimedia

    2000-01-01

    DELPHI (Detector for Lepton, Photon and Hadron Identification) is a detector for e+e- physics, with special emphasis on powerful particle identification, three-dimensional information, high granularity and precise vertex determination. It is installed at LEP (Large Electron and Positron collider) at CERN where it has operated since 1989. The present collaboration consists of about 550 physicists from 56 participating universities and institutes in 22 countries.

  6. A decision-making framework for total ownership cost management of complex systems: A Delphi study

    Science.gov (United States)

    King, Russel J.

    This qualitative study, using a modified Delphi method, was conducted to develop a decision-making framework for the total ownership cost management of complex systems in the aerospace industry. The primary focus of total ownership cost is to look beyond the purchase price when evaluating complex system life cycle alternatives. A thorough literature review and the opinions of a group of qualified experts resulted in a compilation of total ownership cost best practices, cost drivers, key performance factors, applicable assessment methods, practitioner credentials and potential barriers to effective implementation. The expert panel provided responses to the study questions using a 5-point Likert-type scale. Data were analyzed and provided to the panel members for review and discussion with the intent to achieve group consensus. As a result of the study, the experts agreed that a total ownership cost analysis should (a) be as simple as possible using historical data; (b) establish cost targets, metrics, and penalties early in the program; (c) monitor the targets throughout the product lifecycle and revise them as applicable historical data becomes available; and (d) directly link total ownership cost elements with other success factors during program development. The resultant study framework provides the business leader with incentives and methods to develop and implement strategies for controlling and reducing total ownership cost over the entire product life cycle when balancing cost, schedule, and performance decisions.

  7. The application of fuzzy Delphi and fuzzy inference system in supplier ranking and selection

    Science.gov (United States)

    Tahriri, Farzad; Mousavi, Maryam; Hozhabri Haghighi, Siamak; Zawiah Md Dawal, Siti

    2014-06-01

    In today's highly rival market, an effective supplier selection process is vital to the success of any manufacturing system. Selecting the appropriate supplier is always a difficult task because suppliers posses varied strengths and weaknesses that necessitate careful evaluations prior to suppliers' ranking. This is a complex process with many subjective and objective factors to consider before the benefits of supplier selection are achieved. This paper identifies six extremely critical criteria and thirteen sub-criteria based on the literature. A new methodology employing those criteria and sub-criteria is proposed for the assessment and ranking of a given set of suppliers. To handle the subjectivity of the decision maker's assessment, an integration of fuzzy Delphi with fuzzy inference system has been applied and a new ranking method is proposed for supplier selection problem. This supplier selection model enables decision makers to rank the suppliers based on three classifications including "extremely preferred", "moderately preferred", and "weakly preferred". In addition, in each classification, suppliers are put in order from highest final score to the lowest. Finally, the methodology is verified and validated through an example of a numerical test bed.

  8. Fundamentals of automotive and engine technology standard drives, hybrid drives, brakes, safety systems

    CERN Document Server

    2014-01-01

    Hybrid drives and the operation of hybrid vehicles are characteristic of contemporary automotive technology. Together with the electronic driver assistant systems, hybrid technology is of the greatest importance and both cannot be ignored by today’s car drivers. This technical reference book provides the reader with a firsthand comprehensive description of significant components of automotive technology. All texts are complemented by numerous detailed illustrations. Contents History of the automobile.- History of the Diesel engine.- Areas of use for Diesel engines.- Basic principles of the Diesel engine.- Basic principles of Diesel fuel-injection.- Basic principles of the gasoline engine.- Inductive ignition system.- Transmissions for motor vehicles.- Motor vehicle safety.- Basic principles of vehicle dynamics.- Car braking systems.- Vehicle electrical systems.- Overview of electrical and electronic systems in the vehicle.- Control of gasoline engines.- Control of Diesel engines.- Lighting technology.- Elec...

  9. The digital compensation technology system for automotive pressure sensor

    Science.gov (United States)

    Guo, Bin; Li, Quanling; Lu, Yi; Luo, Zai

    2011-05-01

    Piezoresistive pressure sensor be made of semiconductor silicon based on Piezoresistive phenomenon, has many characteristics. But since the temperature effect of semiconductor, the performance of silicon sensor is also changed by temperature, and the pressure sensor without temperature drift can not be produced at present. This paper briefly describe the principles of sensors, the function of pressure sensor and the various types of compensation method, design the detailed digital compensation program for automotive pressure sensor. Simulation-Digital mixed signal conditioning is used in this dissertation, adopt signal conditioning chip MAX1452. AVR singlechip ATMEGA128 and other apparatus; fulfill the design of digital pressure sensor hardware circuit and singlechip hardware circuit; simultaneously design the singlechip software; Digital pressure sensor hardware circuit is used to implementing the correction and compensation of sensor; singlechip hardware circuit is used to implementing to controll the correction and compensation of pressure sensor; singlechip software is used to implementing to fulfill compensation arithmetic. In the end, it implement to measure the output of sensor, and contrast to the data of non-compensation, the outcome indicates that the compensation precision of compensated sensor output is obviously better than non-compensation sensor, not only improving the compensation precision but also increasing the stabilization of pressure sensor.

  10. Burden of corticosteroid use in patients with systemic lupus erythematosus: results from a Delphi panel.

    Science.gov (United States)

    Petri, M; Bechtel, B; Dennis, G; Shah, M; McLaughlin, T; Kan, H; Molta, C

    2014-09-01

    Corticosteroid-related adverse events (AEs) are commonly reported in systemic lupus erythematosus (SLE), but are often under-represented in claims data. The most common corticosteroid-related AEs are not necessarily the most costly. The present study aimed to examine corticosteroid-related AE rates and identify the associated cost consequences in patients with SLE from the perspective of rheumatologists treating SLE in the United States (US). A modified Delphi process and RAND Appropriateness Method was used to estimate corticosteroid-related AEs and costs based on data from SLE-treating US rheumatologists and estimates from alternative sources. The panel (n=10) participated in two web-based questionnaires, covering disease severity, corticosteroid use, corticosteroid-related AEs, and resource utilization associated with treatment of the AEs. Eight members of the panel then participated in a guided discussion by interactive teleconference, in which the costs associated with specific corticosteroid-related AEs were also discussed. Consensus was achieved in the teleconference when a single response category (consensus values from 1 to 4 [4=strongly agree, 1=strongly disagree]) accounted for ≥80% of responses. Thirteen consensus statements were developed following two Delphi rounds. Costs were estimated for eight corticosteroid-associated AEs from the panel of rheumatologists. In the patients with SLE treated by these physicians, 41.5% were considered to have mild disease, 36.5% moderate disease, and 22.0% severe disease. The number of specialist visits, corticosteroid use, and corticosteroid dose increased with disease severity. The estimated rates of all AEs (except for cataracts) were at least doubled in patients receiving corticosteroid doses>20 mg/day compared with ≤20 mg/day. The highest estimated mean total costs of an event (for the required treatment duration for one patient) were for avascular necrosis ($14,460) and serious infection ($11,660). The

  11. Advanced microsystems for automotive applications 2013 smart systems for safe and green vehicles

    CERN Document Server

    Meyer, Gereon

    2013-01-01

    The road vehicle of the future will embrace innovations from three major automotive technology fields: driver assistance systems, vehicle networking and alternative propulsion. Smart systems such as adaptive ICT components and MEMS devices, novel network architectures, integrated sensor systems, intelligent interfaces and functional materials form the basis of these features and permit their successful and synergetic integration. They increasingly appear to be the key enabling technologies for safe and green road mobility. For more than fifteen years the International Forum on Advanced Microsystems for Automotive Applications (AMAA) has been successful in detecting novel trends and in discussing the technological implications from early on. The topic of the AMAA 2013 will be “Smart Systems for Safe and Green Vehicles”. This book contains peer-reviewed papers written by leading engineers and researchers which all address the ongoing research and novel developments in the field. www.amaa.de.

  12. Long-Time Stability of Ni-Ti-Shape Memory Alloys for Automotive Safety Systems

    Science.gov (United States)

    Strittmatter, Joachim; Gümpel, Paul

    2011-07-01

    In automotive a lot of electromagnetically, pyrotechnically or mechanically driven actuators are integrated to run comfort systems and to control safety systems in modern passenger cars. Using shape memory alloys (SMA) the existing systems could be simplified, performing the same function through new mechanisms with reduced size, weight, and costs. A drawback for the use of SMA in safety systems is the lack of materials knowledge concerning the durability of the switching function (long-time stability of the shape memory effect). Pedestrian safety systems play a significant role to reduce injuries and fatal casualties caused by accidents. One automotive safety system for pedestrian protection is the bonnet lifting system. Based on such an application, this article gives an introduction to existing bonnet lifting systems for pedestrian protection, describes the use of quick changing shape memory actuators and the results of the study concerning the long-time stability of the tested NiTi-wires. These wires were trained, exposed up to 4 years at elevated temperatures (up to 140 °C) and tested regarding their phase change temperatures, times, and strokes. For example, it was found that A P-temperature is shifted toward higher temperatures with longer exposing periods and higher temperatures. However, in the functional testing plant a delay in the switching time could not be detected. This article gives some answers concerning the long-time stability of NiTi-wires that were missing till now. With this knowledge, the number of future automotive applications using SMA can be increased. It can be concluded, that the use of quick changing shape memory actuators in safety systems could simplify the mechanism, reduce maintenance and manufacturing costs and should be insertable also for other automotive applications.

  13. European Automotive Congress

    CERN Document Server

    Clenci, Adrian

    2016-01-01

    The volume includes selected and reviewed papers from the European Automotive Congress held in Bucharest, Romania, in November 2015. Authors are experts from research, industry and universities coming from 14 countries worldwide. The papers are covering the latest developments in fuel economy and environment, automotive safety and comfort, automotive reliability and maintenance, new materials and technologies, traffic and road transport systems, advanced engineering methods and tools, as well as advanced powertrains and hybrid and electric drives.

  14. Technical Assessment of Organic Liquid Carrier Hydrogen Storage Systems for Automotive Applications

    Energy Technology Data Exchange (ETDEWEB)

    Ahluwalia, R. K. [Argonne National Lab. (ANL), Argonne, IL (United States); Hua, T. Q. [Argonne National Lab. (ANL), Argonne, IL (United States); Peng, J. -K [Argonne National Lab. (ANL), Argonne, IL (United States); Kromer, M. [TIAX LLC, Lexington, MA (United States); Lasher, S. [TIAX LLC, Lexington, MA (United States); McKenney, K. [TIAX LLC, Lexington, MA (United States); Law, K. [TIAX LLC, Lexington, MA (United States); Sinha, J. [TIAX LLC, Lexington, MA (United States)

    2011-06-21

    In 2007-2009, the DOE Hydrogen Program conducted a technical assessment of organic liquid carrier based hydrogen storage systems for automotive applications, consistent with the Program’s Multiyear Research, Development, and Demonstration Plan. This joint performance (ANL) and cost analysis (TIAX) report summarizes the results of this assessment. These results should be considered only in conjunction with the assumptions used in selecting, evaluating, and costing the systems discussed here and in the Appendices.

  15. Exposure to electrocution by automotive ignition system in the work environment of car service employees

    Directory of Open Access Journals (Sweden)

    Bernard Fryśkowski

    2014-06-01

    Full Text Available Automotive ignition system diagnostic procedures involve a specific kind of action due to the presence of high voltage pulses rated of roughly several dozen kilovolts. Therefore, the repairers employed at car service coming into direct contact with electrical equipment of ignition systems are exposed to risk of electric shock. Typically, the electric discharge energy of automotive ignition systems is not high enough to cause fibrillation due to the electric effect on the heart. Nevertheless, there are drivers and car service employees who use electronic cardiac pacemakers susceptible to high voltage pulses. The influence of high-voltage ignition systems on the human body, especially in case of electric injury, has not been comprehensively elucidated. Therefore, relatively few scientific papers address this problem. The aim of this paper is to consider the electrical injury danger from automotive ignition systems, especially in people suffering from cardiac diseases. Some examples of the methods to reduce electric shock probability during diagnostic procedures of spark-ignition combustion engines are presented and discussed. Med Pr 2014;65(3:419–427

  16. Environmentally responsive material to address human-system interaction in the automotive cockpit

    Science.gov (United States)

    Rehkopf, Jackie D.; Barbat, Saeed D.; Goldman, Neil M.; Samus, Marsha A.; Gold, Harris

    2001-06-01

    There is significant human-system interaction in an automotive cockpit, and for particular components this interaction can be ever-present while being transient in nature. It is envisioned that environmentally responsive materials can be used in some components to accommodate personal and transient differences in the desired human-system interaction. Systems containing responsive gels have been developed to provide user activation and adjustment of the physical properties of a particular interior automotive component. Proprietary reverse viscosification gel formulations were developed that are thermally responsive. Formulations were modified to adjust the dynamic modulus and viscosity in terms of magnitude, amount of change over the viscosification transition, and the temperature over which the transition occurs. Changes in the physical properties of two orders of magnitude and more were achieved over a narrow transition region. Preliminary human factors assessment indicates that this order of magnitude of change is desirable. As the system of responsive gel, encapsulating material and activation mechanism is developed further, additional human factors studies will refine the desired physical properties and thermal activation mechanism. Ultimately, this system will have to perform over the broad range of temperatures imposed on interior automotive components and exhibit long-term durability chemically, physically and mechanically.

  17. Modelling, Analysis, Control and Experimental Validation of Electromechanical Valve Actuators in Automotive Systems

    OpenAIRE

    Hoyos Velasco, Carlos Ildefonso

    2011-01-01

    This Thesis is concerned with the modelling, analysis and control of novel mechatronic valve actuators for automotive systems, specifically, the control of the mechanical valves to intake and exhaust gases in Internal Combustion Engines (ICE). Scientific studies have shown that significant benefits in terms of engine efficiency and emissions can be obtained through the adoption of variable valve actuation. Current engine technology are based on the use of a mechanical driven camshaft, which i...

  18. A method for Perceptual Assessment of Automotive Audio Systems and Cabin Acoustics

    DEFF Research Database (Denmark)

    Kaplanis, Neofytos; Bech, Søren; Sakari, Tervo

    2016-01-01

    This paper reports the design and implementation of a method to perceptually assess the acoustical prop- erties of a car cabin and the subsequent sound reproduction properties of automotive audio systems. Here, we combine Spatial Decomposition Method and Rapid Sensory Analysis techniques...... material. The proposed method is described in terms of capturing, analyzing and reproducing the sound field. A brief overview of the experimental procedure is presented as well as preliminary results of a pilot experiment....

  19. Systems Approach for Designing Cordierite Ceramic Converters for Automotive Emissions Control

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    The successful application of porous cordierite ceramic monolithic converters for automotive emissions control over the past 24 years in North America has been attributed to systems approach for optimizing the total converter package from reliability point of view. The systems approach examines the interaction between various components of monolithic converter package, namely the cordierite substrate, the alumina washcoat, the braided wire-rope end seals, the intumescent ceramic mat or steel wiremesh, and the stainless steel can, from long-term durability point of view. Such an approach has also proven successful in the Japanese, European, Korean and South American automotive industries. The key objectives of this paper are: i) to describe Corning′s methodology for assessing the impact of alumina washcoat on mechanical and thermal integrities of cordierite converter; ii) to examine the impact of mount density of ceramic mat or steel wiremesh on containment of cordierite converter against engine vibrations, gas pulsations and thermal gradients, and; iii) to analyze the impact of can design on strength and thermal shock resistance of cordierite converter. The above objectives will be illustrated by several examples of successful converter design for automobiles. This paper also addresses the Chinese automotive converter requirements and how they might be met via systems approach.

  20. Recommended Skill Requirements of Recent Management Information Systems Graduates for Employment: A Modified Delphi Study

    Science.gov (United States)

    Strnad, Michael A., Sr.

    2013-01-01

    The purpose of this Modified Delphi study was to achieve a consensus and forecast a prediction from expert IT hiring managers on what skills are required of MIS graduates for employment. In doing so, guidance could be provided to academic leaders who design curricula for MIS students on the required skills for employment. This study was conducted…

  1. Automotive Thermoelectric Waste Heat Recovery

    Science.gov (United States)

    Meisner, Gregory P.

    2015-03-01

    Considerable fuel energy, as much as 70%, is not converted to useful work by internal combustion engines but is instead rejected as waste heat, and more than half of the waste heat, nearly 40% of fuel energy, is contained in vehicle exhaust gas. This provides an opportunity to recover some of the wasted fuel energy and convert it from heat into useful work, subject to the laws of thermodynamics, and thereby improve vehicle energy efficiency. Thermoelectric (TE) materials have been extensively researched and TE devices are now being developed for operation at high temperatures corresponding to automotive exhaust gases for direct solid-state conversion of heat into electricity. This has stimulated substantial progress in the development of practical TE generator (TEG) systems for large-scale commercialization. A significant enabler of this progress has been the US Department of Energy's Vehicle Technologies Program through funding for low cost solutions for automotive TE waste heat recovery to improve fuel economy. Our current project at General Motors has culminated in the identification of the potential supply chain for all components and assembly of an automotive TEG. A significant focus has been to develop integrated and iterative modeling tools for a fully optimized TEG design that includes all components and subsystems (TE modules, heat exchangers, thermal interfaces, electrical interconnects, power conditioning, and vehicle integration for maximal use of TEG power). We have built and tested a new, low-cost Initial TEG prototype based on state-of-the-art production-scale skutterudite TE modules, novel heat exchanger designs, and practical solutions to the many technical challenges for optimum TEG performance. We will use the results for our Initial TEG prototype to refine our modeling and design tools for a Final automotive TEG system prototype. Our recent results will be presented. Thanks to: J.R. Salvador, E.R. Gundlach, D. Thompson, N.K. Bucknor, M

  2. The lock-in effect and the greening of automotive cooling systems in the European Union.

    Science.gov (United States)

    Bjørnåvold, Amalie; Van Passel, Steven

    2017-06-23

    As of 2017, the sale and use of the refrigerants most commonly used in automotive cooling systems - hydrofluorocarbons - are entirely banned in all new vehicles placed on the market in the European Union. These refrigerants have been recognised as potent greenhouse gases and, therefore, direct contributors to climate change. It is within this regulation-driven market that the technologies for a sustainable solution have been developed. However, this paper argues that the market for automotive cooling systems has been 'locked-in', which means that competing technologies, operating under dynamic increasing returns, will allow for one - potentially inferior technology - to dominate the market. Whilst such a situation is not uncommon, this paper discusses the way that regulation has reinforced a patented monopoly in 'picking winners': to the advantage of a synthetic chemical, R-1234yf, as opposed to the natural solution, which is CO2. By developing a generic conceptual framework of path dependence and lock-in, the presented evidence seeks to show how a snowballing effect has led to the intensification of differences in market share. We also argue that the automotive industry is potentially promoting short-term fixes, rather than long-term, sustainable and economically viable solutions. Copyright © 2017 Elsevier Ltd. All rights reserved.

  3. Automotive sensors

    Science.gov (United States)

    Marek, Jiri; Illing, Matthias

    2003-01-01

    Sensors are an essential component of most electronic systems in the car. They deliver input parameters for comfort features, engine and emission control as well as for the active and passive safety systems. New technologies such as silicon micromachining play an important role for the introduction of these sensors in all vehicle classes. The importance and use of these sensor technologies in today"s automotive applications will be shown in this article. Finally an outlook on important current developments and new functions in the car will be given.

  4. Research on Calculation Method of Period and Deadline of Frame in Automotive Electronic and Information Integrated Control System

    OpenAIRE

    2008-01-01

    International audience; With the increase of the complexity of automotive control, it is necessary to develop AEIICS (Automotive Electronic and Information Integrated Control System) for exchanging information between ECUs (Electronic Control Units) based on in-vehicle network technology. We named the parameter (or variable) contained in and transmitted by frame as signal. Period and deadline are basic temporal characteristics for signal and frame. Designers mainly focus on directly designing...

  5. Development Technique of Software System Based on Delphi 7 Studio%基于Delphi 7 Studio的软件系统开发技术

    Institute of Scientific and Technical Information of China (English)

    王维; 张克农

    2002-01-01

    介绍了快速应用开发工具Delphi的发展概况,叙述了使用针对,NET平台的Delphi 7 Studio进行软件系统开发的几种新技术,使用这些技术可以实现优秀的企业级解决方案,并可以实现跨平台开发.

  6. Simulation on Cooling System of Automotive Waste Heat Thermoelectric Generator

    Directory of Open Access Journals (Sweden)

    Xiaohong Yuan

    2013-06-01

    Full Text Available The cooling system of automobile waste heat Thermoelectric Generator (TEG is researched in the study. Integrated model of cooling system and vehicle is built based on GT-Cool, analysis of the different cooling ways shows that when using independent cooling system, the ratio between power consumption and output is high and system performance is poor; By using integrated cooling system, the expectation of keep constant engine warm up time and synchronous change of water temperature between different tanks is realized after water tanks are improved.

  7. Adaptive super-twisting observer for estimation of random road excitation profile in automotive suspension systems.

    Science.gov (United States)

    Rath, J J; Veluvolu, K C; Defoort, M

    2014-01-01

    The estimation of road excitation profile is important for evaluation of vehicle stability and vehicle suspension performance for autonomous vehicle control systems. In this work, the nonlinear dynamics of the active automotive system that is excited by the unknown road excitation profile are considered for modeling. To address the issue of estimation of road profile, we develop an adaptive supertwisting observer for state and unknown road profile estimation. Under Lipschitz conditions for the nonlinear functions, the convergence of the estimation error is proven. Simulation results with Ford Fiesta MK2 demonstrate the effectiveness of the proposed observer for state and unknown input estimation for nonlinear active suspension system.

  8. Adaptive Super-Twisting Observer for Estimation of Random Road Excitation Profile in Automotive Suspension Systems

    Directory of Open Access Journals (Sweden)

    J. J. Rath

    2014-01-01

    Full Text Available The estimation of road excitation profile is important for evaluation of vehicle stability and vehicle suspension performance for autonomous vehicle control systems. In this work, the nonlinear dynamics of the active automotive system that is excited by the unknown road excitation profile are considered for modeling. To address the issue of estimation of road profile, we develop an adaptive supertwisting observer for state and unknown road profile estimation. Under Lipschitz conditions for the nonlinear functions, the convergence of the estimation error is proven. Simulation results with Ford Fiesta MK2 demonstrate the effectiveness of the proposed observer for state and unknown input estimation for nonlinear active suspension system.

  9. Objective test and performance measurement of automotive crash warning systems

    Science.gov (United States)

    Szabo, S.; Norcross, R. J.; Falco, J. A.

    2007-04-01

    The National Institute of Standards and Technology (NIST), under an interagency agreement with the United States Department of Transportation (DOT), is supporting development of objective test and measurement procedures for vehicle-based warning systems intended to warn an inattentive driver of imminent rear-end, road-departure and lane-change crash scenarios. The work includes development of track and on-road test procedures, and development of an independent measurement system, which together provide data for evaluating warning system performance. This paper will provide an overview of DOT's Integrated Vehicle-Based Safety System (IVBSS) program along with a review of the approach for objectively testing and measuring warning system performance.

  10. Structural design of composite sealing systems for automotive applications

    Energy Technology Data Exchange (ETDEWEB)

    Tarnowski, T. [Dow Chemical Co., Southfield, MI (United States)

    1996-11-01

    New applications for composites in under-the-hood closure systems such as engine valve covers, transmission side covers, oil pans, and timing chain covers are developing rapidly. The primary driving forces are lighter weight of finished components, integrated designs, improved isolation of engine noise, improved materials systems, and matured manufacturing processes for composite materials. Thermoset-based composite materials, especially those based on high-temperature resistant epoxy vinylester matrices, offer improved elevated-temperature performance with respect to thermoplastic composites. This paper presents the current state-of-the-art design, engineering and optimization techniques for engine closure systems. The performance requirements of systems such as valve covers and oil pans are explained in detail. Techniques for long-term structural stiffness evaluation, vibration performance assessment and noise transmission estimation are described. The material characterization required to develop design allowables for long-term, high-temperature composite applications are also included.

  11. Closing the Loop with Sensors in Commercial Building Systems: Applying Lessons from Automotive Vehicles

    Science.gov (United States)

    Mantese, Joseph

    2011-08-01

    Automotive systems have evolved extensively over the past 50 years, providing a fully integrated system of sub-systems that work in concert for optimal vehicle level closed loop control. In this talk we look at several automotive sub-systems: stability and control, safety and security, emissions and comfort, diagnostics and maintenance, infotainment and communications; with an eye toward understanding their technology drivers and associated value propositions. Conversely, we examine how commercial building systems currently are represented as a collection of sub-systems that often work independently of each other for local optimization, often relying upon open loop control systems developed and installed decades ago. Reasoning primarily by analogy we explore opportunities for energy and efficiency, comfort and environment, and safety/security; asking whether there is sufficient value associated with a new class of building sensors and how those technologies might be brought to bear in improving performance. Finally, we examine the fundamental architecture of detection systems built upon sensing elements, with the aim of understanding trade-offs between: detection, false alarm rate, power, and cost.

  12. Identification and Modeling of Automotive Electrical Parking Brake System for SiL Simulation

    Institute of Scientific and Technical Information of China (English)

    PENG Yi-qiang; LI Wei; ZHANG Jin-lei

    2008-01-01

    To evaluate the software behavior of the electronic control unit (ECU) of automotive electrical parking brake (EPB), a software-in-the-loop (SiL) simulation system is built. The EPB is simulated by ARX (auto-regressive with auxiliary input) model, ARMAX (auto-regressive moving average with auxiliary input) model, and NNARMAX (neural network ARMAX) model. By system identification, the ARX(3,4,2), ARX(4,4,2), ARMAX(3,3,1,1), and ARMAX(4,4,3,2) models are derived. Validation results show that the four-order ARMAX model and the NNARMAX model better simulate the actuator of the EPB.

  13. CFD simulation analysis and research based on engine air intake system of automotive

    Science.gov (United States)

    Liu, Xia; Yan, Hua Jin; Tian, Ning; Zhao, GuoQi

    2017-01-01

    Traditional method for the design of automotive engine intake system has many issues, such as period, high costs, energy consumption and so on. The paper utilized one kind of CFD numerical simulation analysis based on the basic theory of CFD. It use the three-dimensional geometry modal grid, computational modeling and model analysis to identify the turbulence due to unreasonable design of air filter inlet position, and then through the test to verify the correctness of the results of CFD calculations. It provide a theoretical basis for the intake system structural optimization.

  14. Experimental analysis of Hybridised Energy Storage Systems for automotive applications

    Science.gov (United States)

    Sarwar, Wasim; Engstrom, Timothy; Marinescu, Monica; Green, Nick; Taylor, Nigel; Offer, Gregory J.

    2016-08-01

    The requirements of the Energy Storage System (ESS) for an electrified vehicle portfolio consisting of a range of vehicles from micro Hybrid Electric Vehicle (mHEV) to a Battery Electric Vehicle (BEV) vary considerably. To reduce development cost of an electrified powertrain portfolio, a modular system would ideally be scaled across each vehicle; however, the conflicting requirements of a mHEV and BEV prevent this. This study investigates whether it is possible to combine supercapacitors suitable for an mHEV with high-energy batteries suitable for use in a BEV to create a Hybridised Energy Storage System (HESS) suitable for use in a HEV. A passive HESS is found to be capable of meeting the electrical demands of a HEV drive cycle; the operating principles of HESSs are discussed and factors limiting system performance are explored. The performance of the HESS is found to be significantly less temperature dependent than battery-only systems, however the heat generated suggests a requirement for thermal management. As the HESS degrades (at a similar rate to a specialised high-power-battery), battery resistance rises faster than supercapacitor resistance; as a result, the supercapacitor provides a greater current contribution, therefore the energy throughput, temperature rise and degradation of the batteries is reduced.

  15. Performance requirements of automotive batteries for future car electrical systems

    Science.gov (United States)

    Friedrich, R.; Richter, G.

    The further increase in the number of power-consuming functions which has been announced for future vehicle electrical systems, and in particular the effects of new starting systems on battery performance, requires a further optimization of the lead acid system coupled with effective energy management, and enhanced battery operating conditions. In the face of these increased requirements, there are proven benefits to splitting the functions of a single SLI battery between two separate, special-purpose batteries, each of which are optimized, for high power output and for high energy throughput, respectively. This will bring about a marked improvement in weight, reliability, and state of charge (SOC). The development of special design starter and service batteries is almost completed and will lead to new products with a high standard of reliability. The design of the power-optimized lead acid accumulator is particularly suitable for further development as the battery for a 42/36 V electrical system. This is intended to improve the efficiency of the generator and the various power-consuming functions and to improve start/stop operation thereby bringing about a marked reduction in the fuel consumption of passenger cars. This improvement can also be assisted by a charge management system used in conjunction with battery status monitoring.

  16. Automotive Fuel Processor Development and Demonstration with Fuel Cell Systems

    Energy Technology Data Exchange (ETDEWEB)

    Nuvera Fuel Cells

    2005-04-15

    The potential for fuel cell systems to improve energy efficiency and reduce emissions over conventional power systems has generated significant interest in fuel cell technologies. While fuel cells are being investigated for use in many applications such as stationary power generation and small portable devices, transportation applications present some unique challenges for fuel cell technology. Due to their lower operating temperature and non-brittle materials, most transportation work is focusing on fuel cells using proton exchange membrane (PEM) technology. Since PEM fuel cells are fueled by hydrogen, major obstacles to their widespread use are the lack of an available hydrogen fueling infrastructure and hydrogen's relatively low energy storage density, which leads to a much lower driving range than conventional vehicles. One potential solution to the hydrogen infrastructure and storage density issues is to convert a conventional fuel such as gasoline into hydrogen onboard the vehicle using a fuel processor. Figure 2 shows that gasoline stores roughly 7 times more energy per volume than pressurized hydrogen gas at 700 bar and 4 times more than liquid hydrogen. If integrated properly, the fuel processor/fuel cell system would also be more efficient than traditional engines and would give a fuel economy benefit while hydrogen storage and distribution issues are being investigated. Widespread implementation of fuel processor/fuel cell systems requires improvements in several aspects of the technology, including size, startup time, transient response time, and cost. In addition, the ability to operate on a number of hydrocarbon fuels that are available through the existing infrastructure is a key enabler for commercializing these systems. In this program, Nuvera Fuel Cells collaborated with the Department of Energy (DOE) to develop efficient, low-emission, multi-fuel processors for transportation applications. Nuvera's focus was on (1) developing fuel

  17. SOFTWARE AND HARDWARE DESIGN CHALLENGES IN AUTOMOTIVE EMBEDDED SYSTEM

    Directory of Open Access Journals (Sweden)

    Rajeshwari Hegde

    2011-09-01

    Full Text Available Modern auto motives integrate large amount of electronic devices to improve the driving safety and comfort. This growing number of Electronic Control Units (ECUs with sophisticated software escalates the vehicle system design complexity. In this paper we explain the complexity of ECUs in terms of hardware and software and also we explore the possibility of Common Object Request Broker Architecture(CORBA architecture for the integration of add-on software in ECUs. This reduces the complexity of the embedded system in vehicles and eases the ECU integration by reducing the total number of ECUs in the vehicles.

  18. Semi-active control of automotive suspension systems with magnetorheological dampers

    Science.gov (United States)

    Lam, Hiu Fung; Liao, Wei-Hsin

    2001-08-01

    Vibration in today's increasingly high-speed vehicles including automobiles severely affects their ride comfort and safety. The objective of this paper is to develop and study automotive suspension systems with magneto-rheological (MR) fluid dampers for vibration control in order to improve the passenger's comfort and safety. A two degree-of-freedom quarter car model is considered. A mathematical model of MR fluid damper is adopted. In this study, a sliding mode controller is developed by considering loading uncertainty to result in a robust control system. Two kinds of excitations are inputted in order to investigate the performance of the suspension system. The vibration responses are evaluated in both time and frequency domains. Compared to the passive system, the acceleration of the sprung mass is significantly reduced for the system with a controlled MR damper. Under random excitation, the ability of the MR fluid damper to reduce both peak response and root-mean-square response is also shown. The effectiveness of the MR suspension system is also demonstrated via hardware-in-the-loop simulation. The results of this study can be used to develop guidelines to effectively integrate automotive suspensions with MR dampers.

  19. Projection systems with a cut-off line for automotive applications

    Science.gov (United States)

    Kloos, G.; Eichhorn, K.

    2005-08-01

    The lighting systems of a car provide a variety of challenges from the point of view of illumination science and technology. Engineering work in this field has to deal both with reflector and lens design as well as with opto-mechanical design and sensor technology. It has direct implications on traffic safety and the efficiency in which energy is used. Therefore, these systems are continuously improved and optimized. In this context, adaptive systems that we investigate for automotive applications gain increasing importance. The properties of the light distribution in the vicinity of the cut-off line are of key importance for the safe and efficient operation of automotive headlamps. An alternative approach is proposed to refine the description of these properties in an attempt to make it more quantitative. This description is intended to facilitate intercomparison between different systems and/or to study environmental influences on the cut-off line of a system under investigation. Designing projection systems it is necessary to take a delicate trade-off between efficiency, light-distribution characteristics, mechanical boundary conditions, and legal requirements into account. Considerations and results on optical properties of three-axial reflectors in dependence of layout parameters will be given. They can serve as a guideline for the optical workshop and for free-form optimization.

  20. 基于Delphi/Access的C/S系统设计%C/S System Design on the Basis of Delphi/Access

    Institute of Scientific and Technical Information of China (English)

    陈振庆

    2006-01-01

    C/S系统采用Access作后台数据库,具有性能稳定、数据交换迅速、数据安全、维护方便等特点,可视化编程语言Delphi具有丰富的编程环境、友好的界面、高速的编译器、强大的数据库开发功能,文章介绍了基于Delphi/Access的C/S系统软、硬件设计方法和技术.

  1. A listening test system for automotive audio - listeners

    DEFF Research Database (Denmark)

    Choisel, Sylvain; Hegarty, Patrick; Christensen, Flemming;

    2007-01-01

    A series of experiments was conducted in order to validate an experimental procedure to perform listening tests on car audio systems in a simulation of the car environment in a laboratory, using binaural synthesis with head-tracking. Seven experts and 40 non-expert listeners rated a range...... of stimuli for 15 sound-quality attributes developed by the experts. This paper presents a comparison between the attribute ratings from the two groups of participants. Overall preference of the non-experts was also measured using direct ratings as well as indirect scaling based on paired comparisons...

  2. How the systems approach is determining automotive battery design and use

    Science.gov (United States)

    Bonnet, Jean; Stephany, Jean-Marie; Sheppelman, Todd

    Today, the battery in a vehicle system is specific and designed as a single, stand-alone vehicle product. Traditionally, customer specifications were the driving force behind battery design and application requirements. This method is not able to comprehend the fluctuating requirements of real-time, vehicle systems. Growing competition in the automotive market is increasing customer needs and expectations in regards to cost, weight, size efficiency, time-to-market, and quality of the products and systems. System engineering is a service that Delco Remy, as an electrical power system supplier, offers to help their customers secure gains in the market place. System development and application engineering is essential for the development of performance-optimized components that meet the systems and total vehicle cost, reliability and timing objectives. The battery integration must be managed through the electrical power system during the complete vehicle development process in order to increase ultimately customer satisfaction.

  3. Automotive Thermoelectric Generator impact on the efficiency of a drive system with a combustion engine

    Directory of Open Access Journals (Sweden)

    Ziolkowski Andrzej

    2017-01-01

    Full Text Available Increasing the combustion engine drive systems efficiency is currently being achieved by structural changes in internal combustion engines and its equipment, which are geared towards limiting mechanical, thermal and outlet losses. For this reason, downsizing. In addition to these changes, all manner of exhaust gas energy recovery systems are being investigated and implemented, including turbocompound, turbogenerators and thermoelectric generators. The article presents the author’s idea of a thermoelectric generator system of automotive applications ATEG (Automotive Thermoelectric Generator and the study of the recovery of exhaust gas energy stream. The ATEG consists of a heat exchanger, thermoelectric modules and a cooling system. In this solution, 24 commercial thermoelectric modules based on Bi2Te3 (bismuth telluride were used. Measurements were made at two engine test sites on which SI and CI engines were installed. The exhaust gas parameters (temperature and mass flow rate, fuel consumption and operating parameters of the ATEG – the intensity and the voltage generated by the thermoelectric modules and the temperature on the walls of the heat exchanger – were all measured in the experiments. Based on the obtained results, the exhaust gas energy flow and the power of the ATEG were determined as well as its effect on the diesel engine drive system efficiency.

  4. Technical Assessment of Compressed Hydrogen Storage Tank Systems for Automotive Applications

    Energy Technology Data Exchange (ETDEWEB)

    Hua, Thanh [Argonne National Lab. (ANL), Argonne, IL (United States); Ahluwalia, Rajesh [Argonne National Lab. (ANL), Argonne, IL (United States); Peng, J. -K [Argonne National Lab. (ANL), Argonne, IL (United States); Kromer, Matt [TIAX LLC, Lexington, MA (United States); Lasher, Stephen [TIAX LLC, Lexington, MA (United States); McKenney, Kurtis [TIAX LLC, Lexington, MA (United States); Law, Karen [TIAX LLC, Lexington, MA (United States); Sinha, Jayanti [TIAX LLC, Lexington, MA (United States)

    2010-09-01

    This technical report describes DOE's assessment of the performance and cost of compressed hydrogen storage tank systems for automotive applications. The on-board performance (by Argonne National Lab) and high-volume manufacturing cost (by TIAX LLC) were estimated for compressed hydrogen storage tanks. The results were compared to DOE's 2010, 2015, and ultimate full fleet hydrogen storage targets. The Well-to-Tank (WTT) efficiency as well as the off-board performance and cost of delivering compressed hydrogen were also documented in the report.

  5. The Delphi Method Online: Medical Expert Consensus Via the Internet

    OpenAIRE

    Cam, Kenneth M.; McKnight, Patrick E.; Doctor, Jason N.

    2002-01-01

    Delphi is an expert consensus method. The theory behind the Delphi method is that the interaction of experts may lead to a reduction in individual bias. We have developed software that carries out all aspects of the Delphi method via the Internet. The Delphi method online consists of three components: 1) authorship, 2) interactive polling, and 3) reporting/results. We hope that researchers use this tool in future medical expert systems.

  6. Using Vision Metrology System for Quality Control in Automotive Industries

    Science.gov (United States)

    Mostofi, N.; Samadzadegan, F.; Roohy, Sh.; Nozari, M.

    2012-07-01

    The need of more accurate measurements in different stages of industrial applications, such as designing, producing, installation, and etc., is the main reason of encouraging the industry deputy in using of industrial Photogrammetry (Vision Metrology System). With respect to the main advantages of Photogrammetric methods, such as greater economy, high level of automation, capability of noncontact measurement, more flexibility and high accuracy, a good competition occurred between this method and other industrial traditional methods. With respect to the industries that make objects using a main reference model without having any mathematical model of it, main problem of producers is the evaluation of the production line. This problem will be so complicated when both reference and product object just as a physical object is available and comparison of them will be possible with direct measurement. In such case, producers make fixtures fitting reference with limited accuracy. In practical reports sometimes available precision is not better than millimetres. We used a non-metric high resolution digital camera for this investigation and the case study that studied in this paper is a chassis of automobile. In this research, a stable photogrammetric network designed for measuring the industrial object (Both Reference and Product) and then by using the Bundle Adjustment and Self-Calibration methods, differences between the Reference and Product object achieved. These differences will be useful for the producer to improve the production work flow and bringing more accurate products. Results of this research, demonstrate the high potential of proposed method in industrial fields. Presented results prove high efficiency and reliability of this method using RMSE criteria. Achieved RMSE for this case study is smaller than 200 microns that shows the fact of high capability of implemented approach.

  7. Characterization of NiTi Shape Memory Damping Elements designed for Automotive Safety Systems

    Science.gov (United States)

    Strittmatter, Joachim; Clipa, Victor; Gheorghita, Viorel; Gümpel, Paul

    2014-07-01

    Actuator elements made of NiTi shape memory material are more and more known in industry because of their unique properties. Due to the martensitic phase change, they can revert to their original shape by heating when subjected to an appropriate treatment. This thermal shape memory effect (SME) can show a significant shape change combined with a considerable force. Therefore such elements can be used to solve many technical tasks in the field of actuating elements and mechatronics and will play an increasing role in the next years, especially within the automotive technology, energy management, power, and mechanical engineering as well as medical technology. Beside this thermal SME, these materials also show a mechanical SME, characterized by a superelastic plateau with reversible elongations in the range of 8%. This behavior is based on the building of stress-induced martensite of loaded austenite material at constant temperature and facilitates a lot of applications especially in the medical field. Both SMEs are attended by energy dissipation during the martensitic phase change. This paper describes the first results obtained on different actuator and superelastic NiTi wires concerning their use as damping elements in automotive safety systems. In a first step, the damping behavior of small NiTi wires up to 0.5 mm diameter was examined at testing speeds varying between 0.1 and 50 mm/s upon an adapted tensile testing machine. In order to realize higher testing speeds, a drop impact testing machine was designed, which allows testing speeds up to 4000 mm/s. After introducing this new type of testing machine, the first results of vertical-shock tests of superelastic and electrically activated actuator wires are presented. The characterization of these high dynamic phase change parameters represents the basis for new applications for shape memory damping elements, especially in automotive safety systems.

  8. Automotive technology. ; Production engineering and production system. Jidosha gijutsu. ; Seisan gijutsuter dot system

    Energy Technology Data Exchange (ETDEWEB)

    Miki, T. (Daihatsu Motor Co. Ltd., Osaka (Japan))

    1990-07-01

    Japanese automotive industry grew stably through the year of 1989, sustained by favorable domestic demands, and recorded the historically highest production of 13.03 million cars (2.6% up compared with the previous year). Also, newly-designed cars appeared on the market successively, aiming at improving the marketability of automobiles. In the aspect of production engineering, in order to meet the users' needs and preferences, the use of aluminum and plastic materials for car bodies and the application of engineering plastics to such functional parts as intake manifolds and springs have advanced, and the technology of precision mechanical work, forging, sintering and the like for high strength materials has also progressed. Moreover, the application of surface treated steel sheets and plastics for preventing rust as well as plastic painting matching with car designs has increased. In respect of production lines, as the variety of car types has increased corresponding to the diversified users' preferences, utilization of the flexible manufacturing system, which can readily change the types of cars on the production line, has spread extensively so as to improve the efficiency of mixed production lines. Also being pursued is computer-integrated manufacturing (CIM) as a production marketing integrated system to reduce the lead time for production. 26 refs.

  9. The Delphi Method for Graduate Research

    Science.gov (United States)

    Skulmoski, Gregory J.; Hartman, Francis T.; Krahn, Jennifer

    2007-01-01

    The Delphi method is an attractive method for graduate students completing masters and PhD level research. It is a flexible research technique that has been successfully used in our program at the University of Calgary to explore new concepts within and outside of the information systems body of knowledge. The Delphi method is an iterative process…

  10. Design options for automotive batteries in advanced car electrical systems

    Science.gov (United States)

    Peters, K.

    The need to reduce fuel consumption, minimize emissions, and improve levels of safety, comfort and reliability is expected to result in a much higher demand for electric power in cars within the next 5 years. Forecasts vary, but a fourfold increase in starting power to 20 kW is possible, particularly if automatic stop/start features are adopted to significantly reduce fuel consumption and exhaust emissions. Increases in the low-rate energy demand are also forecast, but the use of larger alternators may avoid unacceptable high battery weights. It is also suggested from operational models that the battery will be cycled more deeply. In examining possible designs, the beneficial features of valve-regulated lead-acid batteries made with compressed absorbent separators are apparent. Several of their attributes are considered. They offer higher specific power, improved cycling capability and greater vibration resistance, as well as more flexibility in packaging and installation. Optional circuits considered for dual-voltage supplies are separate batteries for engine starting (36 V) and low-power duties (12 V), and a universal battery (36 V) coupled to a d.c.-d.c. converter for a 12-V equipment. Battery designs, which can be made on commercially available equipment with similar manufacturing costs (per W h and per W) to current products, are discussed. The 36-V battery, made with 0.7 mm thick plates, in the dual-battery system weighs 18.5 kg and has a cold-cranking amp (CCA) rating of 790 A at -18°C to 21.6 V (1080 W kg -1 at a mean voltage of 25.4 V). The associated, cycleable 12-V battery, provides 1.5 kW h and weighs 24.6 kg. Thus, the combined battery weight is 43.1 kg. The single universal battery, with cycling capability, weighs 45.4 kg, has a CCA rating of 810 A (441 W kg -1 at a mean voltage of 24.7 V), and when connected to the d.c.-d.c. converter at 75% efficiency provides a low-power capacity of 1.5 kW h.

  11. Authority Delegation in Boyerahmad Health Centers through Model to Combine Suggestions System and Delphi Method 2012

    Directory of Open Access Journals (Sweden)

    M Momeninezhad

    2013-11-01

    Full Text Available Background & aim: Authority delegation means to transmit part of organization`s manager and leader`s special authorities and executive duties, regardless its root to subordinates and heads of units and related offices to speed up implementing affairs and organizational purposes quickly and on time. The purpose of this study was to inspect authority delegation in health centers of Boyerahmad district through using model to combine suggestions (to identify process and Delphi method (expert`s opinions . Methods: This cross-sectional study was implemented in two stages at first stage, research community was authorities of Boyerahmad health centers (58 persons, their suggestions about requested processes to delegate were gathered by total count through open questionnaires and in second stage, which was Delphi, suggestions gathered from previous stage judged by 30 experts. Data of both stages analyzed by help of Chi-square, correlation coefficient tests. Results: Findings showed that 73.85% of suggestions were able to be delegated, based on expert`s opinion. 40% of suggestions were in domain of official, 36.92% financial and 23.08% hygienic. 88% less than 6 years management background. 20.69% had no academic studies and only 27% were general physicians. Conclusion: By participation of environmental management levels, several processes may be specified and identify cases which are possible to delegate them executively using Delphi (expert`s opinion and this model can be used as a trust worthy method to delegate authority for decentralization. Key words: Participation Management, Health centers, Authority delegation

  12. Computerized Simulation of Automotive Air-Conditioning System: Development of Mathematical Model and Its Validation

    Directory of Open Access Journals (Sweden)

    Haslinda Mohamed Kamar

    2012-03-01

    Full Text Available A semi-empirical model for simulating thermal and energy performance of an automotive air-conditioning (AAC system in passenger vehicles has been developed. The model consists of two sections, namely empirical evaporator correlations and dynamic load simulation. The correlations used consider sensible and latent heat transfer performance of the evaporator coil. The correlations were obtained from the experimental data of actual air conditioning system for a compact size passenger car. The sensible heat transfer correlation relates the evaporator air off dry-bulb temperature to inlet air dry-bulb temperature, humidity ratio, evaporator air velocity, condenser inlet air dry-bulb temperature, condenser air velocity and compressor speed. The latent heat transfer correlation relates the coil air-off humidity ratio to the same six independent variables. The dynamic load simulation model was developed based on the z-transfer function method with a one-minute time step. The cooling load calculations were performed using heat gain weighting factors. Heat extraction rate and cabin air dry-bulb temperature calculations were carried out using air temperature weighting factors. The empirical evaporator sensible and latent heat transfer correlations were embedded in the loads calculation program to enable the determination of evaporator inlet and outlet air conditions, the cabin air temperature and relative humidity. Comparisons with road test data indicated that the program was capable of predicting the performance of the automotive air-conditioning system with reasonable accuracy.

  13. Advanced Microsystems for Automotive Applications 2015 : Smart Systems for Green and Automated Driving

    CERN Document Server

    Müller, Beate; Meyer, Gereon

    2016-01-01

    This edited volume presents the proceedings of the AMAA 2015 conference, Berlin, Germany. The topical focus of the 2015 conference lies on smart systems for green and automated driving. The automobile of the future has to respond to two major trends, the electrification of the drivetrain, and the automation of the transportation system. These trends will not only lead to greener and safer driving but re-define the concept of the car completely, particularly if they interact with each other in a synergetic way as for autonomous parking and charging, self-driving shuttles or mobile robots. Key functionalities like environment perception are enabled by electronic components and systems, sensors and actuators, communication nodes, cognitive systems and smart systems integration. The book will be a valuable read for research experts and professionals in the automotive industry but the book may also be beneficial for graduate students.

  14. Real-time 3D shape inspection system of automotive parts based on structured light pattern

    Science.gov (United States)

    Xu, Jing; Xi, Ning; Zhang, Chi; Shi, Quan; Gregory, John

    2011-02-01

    The non-contact 3D area sensor technology has achieved many successes in a variety of offline measurements. However, it has not been implemented for online measurement in the automotive production lines. The biggest challenge is the capability of simultaneously satisfying the efficiency, reliability, and accuracy requirements. For this purpose, a real-time 3D area sensor based on structured light pattern is proposed. To satisfy the requirement of online measurement, a one-shot pattern using monochromatic light is proposed. Compared with the previous patterns, this pattern is more robust because it can avoid the influence of the ambient light and the inspected part reflective property. Moreover, the requirement of the accuracy performance is achieved by the pattern primitive which is similar to the corner of the checkerboard since it can provide high accuracy performance even when the occlusion occurs; also, the pixel-to-pixel calibration strategy is utilized to increase the accuracy of the inspection system. Such a real-time shape measurement system has been successfully developed in our laboratory. Last, the evaluation experiments are conducted. The experiment results demonstrate the robustness and accuracy of the approach on automotive parts with different surface properties.

  15. Evaluation of Performance and Opportunities for Improvements in Automotive Power Electronics Systems: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Moreno, Gilberto; Bennion, Kevin; King, Charles; Narumanchi, Sreekant

    2016-06-14

    Thermal management strategies for automotive power electronic systems have evolved over time to reduce system cost and to improve reliability and thermal performance. In this study, we characterized the power electronic thermal management systems of two electric-drive vehicles--the 2012 Nissan LEAF and 2014 Honda Accord Hybrid. Tests were conducted to measure the insulated-gate bipolar transistor-to-coolant thermal resistances for both steady-state and transient conditions at various coolant flow rates. Water-ethylene glycol at a temperature of 65 degrees C was used as the coolant for these experiments. Computational fluid dynamics and finite element analysis models of the vehicle's power electronics thermal management system were then created and validated using experimentally obtained results. Results indicate that the Accord module provides lower steady-state thermal resistance as compared with the LEAF module. However, the LEAF design may provide improved performance in transient conditions and may have cost benefits.

  16. On the automotive air conditioning system%汽车空调系统浅谈

    Institute of Scientific and Technical Information of China (English)

    刘春明

    2014-01-01

    As people for the car ride comfort requirements continue to increase, automotive air conditioning has made rapid progress, the definition of automobile air-conditioning, development, work characteristics described in this article do, and in accordance with the power source and the structure of its classification is different, do finally focuses on the automotive air conditioning system components and working process, describes the structure, working conditions in the illustrations, clear, easy to understand.%随着人们对于汽车乘坐舒适性要求的不断提高,汽车空调得到长足发展,本文对汽车空调的定义、发展历程、工作特点做了说明,并按照动力源和结构形式的不同对其进行了分类,最后着重介绍了汽车空调系统组成及工作过程,介绍结构、工作情况时做到图文并茂,条理清晰,通俗易懂。

  17. Energy system feasibility study of an Otto cycle/Stirling cycle hybrid automotive engine

    Energy Technology Data Exchange (ETDEWEB)

    Cullen, Barry; McGovern, Jim [Department of Mechanical Engineering, Dublin Institute of Technology, Dublin (Ireland)

    2010-02-15

    The aim of this study was to investigate the feasibility of utilising a Stirling cycle engine as an exhaust gas waste heat recovery device for an Otto cycle internal combustion engine (ICE) in the context of an automotive power plant. The hybrid arrangement would produce increased brake power output for a given fuel consumption rate when compared to an ICE alone. The study was dealt with from an energy system perspective with design practicalities such as power train integration, location of auxiliaries, manufacture costs and other general plant design considerations neglected. The study necessitated work in two distinct areas: experimental assessment of the performance characteristics of an existing automotive Otto cycle ICE and mathematical modelling of the Stirling cycle engine based on the output parameters of the ICE. It was subsequently found to be feasible in principle to generate approximately further 30% useful power in addition to that created by the ICE by using a Stirling cycle engine to capture waste heat expelled from the ICE exhaust gases over the complete range of engine operating speeds. (author)

  18. Handbook of camera monitor systems the automotive mirror-replacement technology based on ISO 16505

    CERN Document Server

    2016-01-01

    This handbook offers a comprehensive overview of Camera Monitor Systems (CMS), ranging from the ISO 16505-based development aspects to practical realization concepts. It offers readers a wide-ranging discussion of the science and technology of CMS as well as the human-interface factors of such systems. In addition, it serves as a single reference source with contributions from leading international CMS professionals and academic researchers. In combination with the latest version of UN Regulation No. 46, the normative framework of ISO 16505 permits CMS to replace mandatory rearview mirrors in series production vehicles. The handbook includes scientific and technical background information to further readers’ understanding of both of these regulatory and normative texts. It is a key reference in the field of automotive CMS for system designers, members of standardization and regulation committees, engineers, students and researchers.

  19. Design and development of an automotive propulsion system utilizing a Rankine cycle engine (water based fluid). Final report

    Energy Technology Data Exchange (ETDEWEB)

    Demler, R.L.

    1977-09-01

    Under EPA and ERDA sponsorship, SES successfully designed, fabricated and tested the first federally sponsored steam powered automobile. The automobile - referred to as the simulator - is a 1975 Dodge Monaco standard size passenger car with the SES preprototype Rankine cycle automotive propulsion system mounted in the engine compartment. In the latter half of 1975, the simulator successfully underwent test operations at the facilities of SES in Watertown, Massachusetts and demonstrated emission levels below those of the stringent federally established automotive requirements originally set for implementation by 1976. The demonstration was accomplished during testing over the Federal Driving Cycle on a Clayton chassis dynamometer. The design and performance of the vehicle are described.

  20. ANALYSIS OF PERIODICAL TECHNICAL INSPECTION SYSTEMS IN AUTOMOTIVE TRANSPORT. THE EXPERIENCES OF POLAND AND RUSSIA

    Directory of Open Access Journals (Sweden)

    Jan FILIPCZYK

    2015-12-01

    Full Text Available The increasing number of road accidents nowadays seems to by a global problem. Apart from the obvious causes of accidents, such as violation of road traffic rules by drivers and pedestrians, the drunk driving, poor quality of road infrastructure, the technical faults of vehicles should also be take into account. Reasons of technical failures can be the failure of parts, components and assemblies caused by aging, poor quality or non-observance of technological norms when they are installed. It is possible to prevent the occurrence of faults by applying warning methods, one of which is obligatory periodic technical inspection. The purpose of this article is to analyze the characteristic features of the systems of technical inspections in automotive transport used in Poland and Russia. It makes it possible to identify common features and distinctive features of systems in both countries.

  1. Multiwalled carbon nanotubes and fluoroelastomer antistatic nanocomposite for automotive fuel system components

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Seok; Park, Seong Hwan; Ha, Kiryong [Keimyung University, Daegu (Korea, Republic of); Lee, Jong Cheol [Jin-Yang Oil Seal Co., Ltd., Daegu (Korea, Republic of)

    2016-03-15

    Fluoroelastomer (FKM) composites, reinforced with multiwalled carbon nanotubes (MWNTs), were prepared by conventional method to determine the possibility of using MWNTs to develop an antistatic composite in automotive fuel systems. The results obtained from the composite containing 0-9 phr of MWNTs were compared. A 5 points increase in hardness was achieved with the addition of only 1 phr of MWNTs and 9 phr added FKM composite was increased 6.4MPa in tensile strength compared to the MWNTs unfilled FKM composite. In addition, electrical conductivity increased from 0 to 1.039 Scm{sup -1} with increase in the MWNTs concentration, and the dynamic damping property was increased in the rubbery state region accordingly. These phenomena can be explained by the MWNTs networks formed in FKM matrix. This research will therefore be useful in the development of an antistatic rubber composite for fuel system components, which are deformed or vibrated while in operation.

  2. Estudo Delphi: atores sociais e tendências do sistema de saúde brasileiro Delphi Study: social actors and trends in the Brazilian health care system

    Directory of Open Access Journals (Sweden)

    Sérgio Francisco Piola

    2002-01-01

    Full Text Available Este artigo sintetiza o Informe Final publicado pelo Instituto de Pesquisa Econômica Aplicada contendo os resultados do Estudo Delphi, realizado no ano 2000, com o objetivo de identificar as principais tendências da saúde no Brasil para a primeira década do século XXI, segundo o entendimento de formadores de opinião selecionados entre diversos segmentos sociais mais diretamente envolvidos nas questões setoriais. Foram ouvidos 138 painelistas, dos quais 105 (76,1% participaram das duas etapas do estudo (1º e 2º questionários. A primeira grande conclusão de ordem geral do estudo é a improbabilidade de qualquer cenário de ruptura com o modelo atual. A segunda se refere à presença do contraditório nas opiniões dos diferentes grupos em inúmeras questões. A salutar ausência do pensamento único é evidenciada mesmo quando todos os segmentos representados no painel apontam na mesma direção, já que o grau de otimismo (ou pessimismo difere em cada grupo.This article summarizes the Final Report published by the Instituto de Pesquisa Econômica Aplicada, containing the results of the Delphi Study conducted in 2000 with the objective of identifying the main health trends in Brazil in the first decade of the 21st century, according to opinion-makers selected from various social segments most directly involved in issues in their respective sectors. A total of 138 panelists were interviewed, of whom 105 (76.1% participated in both stages of the study (1st and 2nd questionnaires. The first major general conclusion is the improbability of any scenario involving a break with the current model. The second refers to the presence of contradictory opinions among the different groups on numerous issues. The healthy absence of a single line of thought is displayed even when all segments represented in the panel point in the same direction, since the degree of optimism (or pessimism differs from one group to another.

  3. Delphi report 1995 on developments in science and technology. Mini Delphi; Delphi-Bericht 1995 zur Entwicklung von Wissenschaft und Technik. Mini-Delphi

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    In August 1993 the first German `Delphi Report on Developments in Science and Technology` was published. It was elaborated by the Fraunhofer Institute for System Engineering and Innovation Research (FhG-ISI) in cooperation with the Japanese National Institute of Science and Technology Policy (NISTEP). The `MINI-DELPHI` now completed by FhG-ISI, again in cooperation with NISTEP, is a further development of the Delphi approach in that it is more differentiated in its questions and assessment criteria than its predecessors. `MINI-DELPHI` is not intended as a comprehensive forecast on technology in general but rather focusses on key topics. Its emphasis is on technology demand and the relevance of technologies to social issues. Although the Mini-Delphi study was primarily aimed at further refining the methodology employed, it nevertheless contains a wealth of information and details on circumscript questions. The requisite database is provided by tables on the results of two inquiry rounds among Japanese and German experts. (orig./RHM) [Deutsch] Im August 1993 wurde der erste deutsche `Delphi-Bericht zur Entwicklung von Wissenschaft und Technik` veroeffentlicht. Er war vom Fraunhofer-Institut fuer Systemtechnik und Innovationsforschung (FhG-ISI) in Zusammenarbeit mit dem japanischen National Institute of Science and Technology Policy (NISTEP) erarbeitet worden. Mit dem jetzt vorliegenden `MINI-DELPHI` hat das FhG-ISI - wieder in Zusammenarbeit mit dem NISTEP - den Delphi-Ansatz fortentwickelt und sowohl hinsichtlich der Fragen als auch der Beurteilungskriterien weiter ausdifferenziert. `MINI-DELPHI` bezweckt keine umfassende Technologievorausschau, sondern konzentriert sich auf Schluesselthemen. Im Vordergrund steht der Gedanke des Technikbedarfs und die Relevanz fuer gesellschaftliche Fragestellungen. Obwohl die Mini-Delphi-Studie vorrangig der Weiterentwicklung der Methodik dient, enthaelt sich eine Fuelle von Informationen und Details zu Einzelfragen. Die im Bericht

  4. Mass Production Cost Estimation for Direct H2 PEM Fuel Cell Systems for Automotive Applications. 2009 Update

    Energy Technology Data Exchange (ETDEWEB)

    James, Brian D. [Directed Technologies, Arlington, VA (United States); Kalinoski, Jeffrey A. [Directed Technologies, Arlington, VA (United States); Baum, Kevin N. [Directed Technologies, Arlington, VA (United States)

    2010-01-01

    This report is the third annual update of a comprehensive automotive fuel cell cost analysis. It contains estimates for material and manufacturing cost of complete 80 kWnet direct hydrogen proton exchange membrane fuel cell systems suitable for powering light duty automobiles.

  5. Why Process-Orientation is Scarce: An Empirical Study of Process-oriented Information Systems in the Automotive Industry

    NARCIS (Netherlands)

    Mutschler, B.B.; Bumiller, J.; Reichert, M.U.

    2006-01-01

    Several studies have indicated that existing information systems (IS) often fail to provide adequate business process support. To systematically identify the reasons for this drawback, we conducted a case study in the automotive domain and a survey among 79 IT practitioners. This paper presents the

  6. MEMS for automotive and aerospace applications

    CERN Document Server

    Kraft, Michael

    2013-01-01

    MEMS for automotive and aerospace applications reviews the use of Micro-Electro-Mechanical-Systems (MEMS) in developing solutions to the unique challenges presented by the automotive and aerospace industries.Part one explores MEMS for a variety of automotive applications. The role of MEMS in passenger safety and comfort, sensors for automotive vehicle stability control applications and automotive tire pressure monitoring systems are considered, along with pressure and flow sensors for engine management, and RF MEMS for automotive radar sensors. Part two then goes on to explore MEMS for

  7. High-power batteries for the new 36/42 V automotive systems

    Science.gov (United States)

    Nelson, R. F.

    The new automotive architectures will require high-voltage, high-power batteries that are completely different from existing 12 V flooded lead-acid products. Battery requirements for these applications are reviewed first from the standpoint of the vehicle, and then from an electrochemical/thermal performance perspective. Design and performance characteristics are then critically evaluated for the three major candidates for the new 36/42 V systems, namely: valve-regulated lead-acid (VRLA), nickel-metal-hydride (Ni-MH), and lithium-ion (Li-ion). Design and manufacturing requirements, performance strengths and weaknesses, reliability issues, markets and pricing are then examined for the VRLA battery, which appears to be the leading candidate at this time.

  8. Integration of Head-Up Display system in automotive industry: a generalized application

    Science.gov (United States)

    Betancur, J. Alejandro; Osorio, Gilberto; Mejía, Alejandro

    2013-06-01

    Throughout the development of the automotive industry, supporting activities related with driving has been material of analysis and experimentation, always seeking new ways to achieve greater safety for the driver and passengers. With the purpose of contributing to this topic, in order to contribute to this subject, this paper summarizes from past research experiences the use of Head-Up Display systems applied to the automobile industry, covering it from two main points of discussion: the first one, from a technical point of view, in which the main principles of optical design associated with a moderate-cost experimental set up are brought out; and the second one, an operational approach where an applied driving graphical interface is presented. Up to now, the results suggest that the experimental set up here discussed could be adaptable to any automobile vehicle, but it is needed further research and investment.

  9. Technical assessment of compressed hydrogen storage tank systems for automotive applications.

    Energy Technology Data Exchange (ETDEWEB)

    Hua, T. Q.; Ahluwalia, R. K.; Peng, J. K.; Kromer, M.; Lasher, S.; McKenney, K.; Law, K.; Sinha, J. (Nuclear Engineering Division); (TIAX, LLC)

    2011-02-09

    The performance and cost of compressed hydrogen storage tank systems has been assessed and compared to the U.S. Department of Energy (DOE) 2010, 2015, and ultimate targets for automotive applications. The on-board performance and high-volume manufacturing cost were determined for compressed hydrogen tanks with design pressures of 350 bar ({approx}5000 psi) and 700 bar ({approx}10,000 psi) capable of storing 5.6 kg of usable hydrogen. The off-board performance and cost of delivering compressed hydrogen was determined for hydrogen produced by central steam methane reforming (SMR). The main conclusions of the assessment are that the 350-bar compressed storage system has the potential to meet the 2010 and 2015 targets for system gravimetric capacity but will not likely meet any of the system targets for volumetric capacity or cost, given our base case assumptions. The 700-bar compressed storage system has the potential to meet only the 2010 target for system gravimetric capacity and is not likely to meet any of the system targets for volumetric capacity or cost, despite the fact that its volumetric capacity is much higher than that of the 350-bar system. Both the 350-bar and 700-bar systems come close to meeting the Well-to-Tank (WTT) efficiency target, but fall short by about 5%. These results are summarized.

  10. FISITA 2012 World Automotive Congress

    CERN Document Server

    2013-01-01

    Proceedings of the FISITA 2012 World Automotive Congress are selected from nearly 2,000 papers submitted to the 34th FISITA World Automotive Congress, which is held by Society of Automotive Engineers of China (SAE-China ) and the International Federation of Automotive Engineering Societies (FISITA). This proceedings focus on solutions for sustainable mobility in all areas of passenger car, truck and bus transportation. Volume 8: Vehicle Design and Testing (II) focuses on: •Automotive Reliability Technology •Lightweight Design Technology •Design for Recycling •Dynamic Modeling •Simulation and Experimental Validation •Virtual Design, Testing and Validation •Testing of Components, Systems and Full Vehicle Above all researchers, professional engineers and graduates in fields of automotive engineering, mechanical engineering and electronic engineering will benefit from this book.   SAE-China is a national academic organization composed of enterprises and professionals who focus on research, design a...

  11. Delphi Accounts Receivable Module -

    Data.gov (United States)

    Department of Transportation — Delphi accounts receivable module contains the following data elements, but are not limited to customer information, cash receipts, line of accounting details, bill...

  12. Robust and fast pedestrian detection method for far-infrared automotive driving assistance systems

    Science.gov (United States)

    Liu, Qiong; Zhuang, Jiajun; Ma, Jun

    2013-09-01

    Despite considerable effort has been contributed to night-time pedestrian detection for automotive driving assistance systems recent years, robust and real-time pedestrian detection is by no means a trivial task and is still underway due to the moving cameras, uncontrolled outdoor environments, wide range of possible pedestrian presentations and the stringent performance criteria for automotive applications. This paper presents an alternative night-time pedestrian detection method using monocular far-infrared (FIR) camera, which includes two modules (regions of interest (ROIs) generation and pedestrian recognition) in a cascade fashion. Pixel-gradient oriented vertical projection is first proposed to estimate the vertical image stripes that might contain pedestrians, and then local thresholding image segmentation is adopted to generate ROIs more accurately within the estimated vertical stripes. A novel descriptor called PEWHOG (pyramid entropy weighted histograms of oriented gradients) is proposed to represent FIR pedestrians in recognition module. Specifically, PEWHOG is used to capture both the local object shape described by the entropy weighted distribution of oriented gradient histograms and its pyramid spatial layout. Then PEWHOG is fed to a three-branch structured classifier using support vector machines (SVM) with histogram intersection kernel (HIK). An off-line training procedure combining both the bootstrapping and early-stopping strategy is introduced to generate a more robust classifier by exploiting hard negative samples iteratively. Finally, multi-frame validation is utilized to suppress some transient false positives. Experimental results on FIR video sequences from various scenarios demonstrate that the presented method is effective and promising.

  13. Signal Analysis of Automotive Engine Spark Ignition System using Case-Based Reasoning (CBR) and Case-based Maintenance (CBM)

    Science.gov (United States)

    Huang, H.; Vong, C. M.; Wong, P. K.

    2010-05-01

    With the development of modern technology, modern vehicles adopt electronic control system for injection and ignition. In traditional way, whenever there is any malfunctioning in an automotive engine, an automotive mechanic usually performs a diagnosis in the ignition system of the engine to check any exceptional symptoms. In this paper, we present a case-based reasoning (CBR) approach to help solve human diagnosis problem. Nevertheless, one drawback of CBR system is that the case library will be expanded gradually after repeatedly running the system, which may cause inaccuracy and longer time for the CBR retrieval. To tackle this problem, case-based maintenance (CBM) framework is employed so that the case library of the CBR system will be compressed by clustering to produce a set of representative cases. As a result, the performance (in retrieval accuracy and time) of the whole CBR system can be improved.

  14. Methodology on Investigating the Influences of Automated Material Handling System in Automotive Assembly Process

    Science.gov (United States)

    Saffar, Seha; Azni Jafar, Fairul; Jamaludin, Zamberi

    2016-02-01

    A case study was selected as a method to collect data in actual industry situation. The study aimed to assess the influences of automated material handling system in automotive industry by proposing a new design of integration system through simulation, and analyze the significant effect and influence of the system. The method approach tool will be CAD Software (Delmia & Quest). The process of preliminary data gathering in phase 1 will collect all data related from actual industry situation. It is expected to produce a guideline and limitation in designing a new integration system later. In phase 2, an idea or concept of design will be done by using 10 principles of design consideration for manufacturing. A full factorial design will be used as design of experiment in order to analyze the performance measured of the integration system with the current system in case study. From the result of the experiment, an ANOVA analysis will be done to study the performance measured. Thus, it is expected that influences can be seen from the improvement made in the system.

  15. Accelerated testing of an optimized closing system for automotive fuel tank

    Science.gov (United States)

    Gligor, A.; Ilie, S.; Nicolae, V.; Mitran, G.

    2015-11-01

    Taking into account the legal prescriptions which are in force and the new regulatory requirements that will be mandatory to implement in the near future regarding testing characteristics of automotive fuel tanks, resulted the necessity to develop a new testing methodology which allows to estimate the behaviour of the closing system of automotive fuel tank over a long period of time (10-15 years). Thus, were designed and conducted accelerated tests under extreme assembling and testing conditions (high values for initial tightening torques, extreme values of temperature and pressure). In this paper are presented two of durability tests which were performed on an optimized closing system of fuel tank: (i) the test of exposure to temperature with cyclical variation and (ii) the test of continuous exposure to elevated temperature. In these experimental tests have been used main components of the closing system manufactured of two materials variants, both based on the polyoxymethylene, material that provides higher mechanical stiffness and strength in a wide temperature range, as well as showing increased resistance to the action of chemical agents and fuels. The tested sample included a total of 16 optimized locking systems, 8 of each of 2 versions of material. Over deploying the experiments were determined various parameters such as: the initial tightening torque, the tightening torque at different time points during measurements, the residual tightening torque, defects occurred in the system components (fissures, cracks, ruptures), the sealing conditions of system at the beginning and at the end of test. Based on obtained data were plotted the time evolution diagrams of considered parameter (the residual tightening torque of the system consisting of locking nut and threaded ring), in different temperature conditions, becoming possible to make pertinent assessments on the choice between the two types of materials. By conducting these tests and interpreting the

  16. The performance of the Barrel Muon Trigger system of the DELPHI experiment and a study of heavy flavour physics through the semileptonic decay to muons in $e^{+}e^{-}$ collisions at the $Z^{o}$ resonance

    CERN Document Server

    Bates, Martin Joseph

    1992-01-01

    The performance of the Barrel Muon Trigger system of the DELPHI experiment and a study of heavy flavour physics through the semileptonic decay to muons in $e^{+}e^{-}$ collisions at the $Z^{o}$ resonance

  17. Performance and cost of automotive fuel cell systems with ultra-low platinum loadings

    Science.gov (United States)

    Ahluwalia, R. K.; Wang, X.; Kwon, J.; Rousseau, A.; Kalinoski, J.; James, B.; Marcinkoski, J.

    2011-05-01

    An automotive polymer-electrolyte fuel cell (PEFC) system with ultra-low platinum loading (0.15 mg-Pt cm-2) has been analyzed to determine the relationship between its design-point efficiency and the system efficiency at part loads, efficiency over drive cycles, stack and system costs, and heat rejection. The membrane electrode assemblies in the reference PEFC stack use nanostructured, thin-film ternary catalysts supported on organic whiskers and a modified perfluorosulfonic acid membrane. The analyses show that the stack Pt content can be reduced by 50% and the projected high-volume manufacturing cost by >45% for the stack and by 25% for the system, if the design-point system efficiency is lowered from 50% to 40%. The resulting penalties in performance are a indicate that thermal management in the lower efficiency systems is very challenging and that the radiator becomes bulky if the stack temperature cannot be allowed to increase to 90-95 °C under driving conditions where heat rejection is difficult.

  18. Improving TMD classification using the Delphi technique.

    Science.gov (United States)

    John, M T

    2010-10-01

    The classification of temporomandibular disorders (TMD) is still controversial. Consensus methods such as the Delphi technique, a method that polls experts' anonymous opinion in an iterative process with controlled feedback and statistical aggregation of group response, could be valuable to improve this challenging topic. The article illustrates the application of the Delphi technique for deciding whether the terms myalgia or myofascial pain should be used in a TMD classification system and discusses the technique's potential for TMD classification in general. In three Delphi rounds, 14 TMD experts from the Division of TMD and Orofacial Pain of the University of Minnesota reached a consensus about which TMD diagnoses should be included in a TMD classification system. They preferred the term myofascial pain over myalgia. The Delphi technique has the potential to provide answers to complex questions in TMD classification, e.g., TMD nomenclature and range as well as scope of conditions included in a future TMD classification system.

  19. Cooling performance and evaluation of automotive refrigeration system for a passenger car

    Science.gov (United States)

    Prajitno, Deendarlianto, Majid, Akmal Irfan; Mardani, Mahardeka Dhias; Wicaksono, Wendi; Kamal, Samsul; Purwanto, Teguh Pudji; Fauzun

    2016-06-01

    A new design of automotive refrigeration system for a passenger car was proposed. To ensure less energy consumption and optimal thermal comfort, the performance of the system were evaluated. This current research was aimed to evaluate the refrigeration characteristics of the system for several types of cooling load. In this present study, a four-passenger wagon car with 1500 cc gasoline engine that equipped by a belt driven compressor (BDC) was used as the tested vehicle. To represent the tropical condition, a set of lamps and wind sources are installed around the vehicle. The blower capacity inside a car is varied from 0.015 m/s to 0.027 m/s and the compressor speed is varied at variable 820, 1400, and 2100 rpm at a set temperature of 22°C. A set of thermocouples that combined by data logger were used to measure the temperature distribution. The system uses R-134a as the refrigerant. In order to determine the cooling capacity of the vehicle, two conditions were presented: without passengers and full load conditions. As the results, cooling capacity from any possible heating sources and transient characteristics of temperature in both systems for the cabin, engine, compressor, and condenser are presented in this work. As the load increases, the outlet temperature of evaporator also increases due to the increase of condensed air. This phenomenon also causes the increase of compressor work and compression ratio which associated to the addition of specific volume in compressor inlet.

  20. Delphi应用程序菜单格式的改进%An Improvement of Delphi Applied Program's Menu Style

    Institute of Scientific and Technical Information of China (English)

    孙冀侠; 周立志; 何丽宏

    2001-01-01

    In this paper,a technique which gives a main menu style of Windows system and Delphi system is described under the development enviroment of Delphi4.0.%介绍一种在Delphi4.0环境中开发类Windows系统及Delphi4.0主菜单风格的菜单技术.

  1. Identifying and establishing consensus on the most important safety features of GP computer systems: e-Delphi study

    Directory of Open Access Journals (Sweden)

    Anthony Avery

    2005-03-01

    Full Text Available Our objective was to identify and establish consensus on the most important safety features of GP computer systems, with a particular emphasis on medicines management.Weused a two-round electronic Delphi survey, completed by a 21-member multidisciplinary expert panel, all from the UK. The main outcome measure was percentage agreement of the panel members on the importance of the presence of a number of different safety features (presented as clinical statements onGP computer systems.We found 90% or greater agreement on the importance of 32 (58% statements. These statements, indicating issues considered to be of considerable importance (rated as important or very important, related to: computerised alerts; the need to avoid spurious alerts; making it difficult to override critical alerts; having audit trails of such overrides; support for safe repeat prescribing; effective computer_user interface; importance of call and recall management; and the need to be able to run safety reports. The high level of agreement among the expert panel members indicates clear themes and priorities that need to be addressed in any further improvement of safety features in primary care computing systems.

  2. Design and Implementation of Hospital Management Information System Based on Delphi%基于Delphi的医院管理信息系统设计与实现

    Institute of Scientific and Technical Information of China (English)

    郭绍永; 白东玲

    2011-01-01

    针对目前中小医院普遍存在的手工操作模式造成医生工作效率低下、病人信息查询难、药品难管理等问题,开发了基于Delphi的医院管理信息系统.介绍了Delphi的优越性和系统的总体功能及数据库设计方法,并以医院管理信息系统药品查询模块为例,分析了采用Delphi为开发工具进行系统开发的流程.%A hospital manage information system is developed based on Delphi,in view of the problems exist in the small and medium-sized hospitals,such as doctors inefficient,patient information searching and medicines managing difficult under manual operation mode.The advantages of Delphi,the overall function of the system and the design of database are described.And taking the medicine searching module of the hospital management information system as an example,system development processes is expounded with Delphi as development tool.

  3. Advanced Emergency Braking Controller Design for Pedestrian Protection Oriented Automotive Collision Avoidance System

    Directory of Open Access Journals (Sweden)

    Guo Lie

    2014-01-01

    Full Text Available Automotive collision avoidance system, which aims to enhance the active safety of the vehicle, has become a hot research topic in recent years. However, most of the current systems ignore the active protection of pedestrian and other vulnerable groups in the transportation system. An advanced emergency braking control system is studied by taking into account the pedestrians and the vehicles. Three typical braking scenarios are defined and the safety situations are assessed by comparing the current distance between the host vehicle and the obstacle with the critical braking distance. To reflect the nonlinear time-varying characteristics and control effect of the longitudinal dynamics, the vehicle longitudinal dynamics model is established in CarSim. Then the braking controller with the structure of upper and lower layers is designed based on sliding mode control and the single neuron PID control when confronting deceleration or emergency braking conditions. Cosimulations utilizing CarSim and Simulink are finally carried out on a CarSim intelligent vehicle model to explore the effectiveness of the proposed controller. Results display that the designed controller has a good response in preventing colliding with the front vehicle or pedestrian.

  4. Comparative of signal processing techniques for micro-Doppler signature extraction with automotive radar systems

    Science.gov (United States)

    Rodriguez-Hervas, Berta; Maile, Michael; Flores, Benjamin C.

    2014-05-01

    In recent years, the automotive industry has experienced an evolution toward more powerful driver assistance systems that provide enhanced vehicle safety. These systems typically operate in the optical and microwave regions of the electromagnetic spectrum and have demonstrated high efficiency in collision and risk avoidance. Microwave radar systems are particularly relevant due to their operational robustness under adverse weather or illumination conditions. Our objective is to study different signal processing techniques suitable for extraction of accurate micro-Doppler signatures of slow moving objects in dense urban environments. Selection of the appropriate signal processing technique is crucial for the extraction of accurate micro-Doppler signatures that will lead to better results in a radar classifier system. For this purpose, we perform simulations of typical radar detection responses in common driving situations and conduct the analysis with several signal processing algorithms, including short time Fourier Transform, continuous wavelet or Kernel based analysis methods. We take into account factors such as the relative movement between the host vehicle and the target, and the non-stationary nature of the target's movement. A comparison of results reveals that short time Fourier Transform would be the best approach for detection and tracking purposes, while the continuous wavelet would be the best suited for classification purposes.

  5. Test and assessment method of Automotive Safety Systems (SSB) particularly to monitor traffic incidents

    Science.gov (United States)

    Pijanowski, B.; Łukjanow, S.; Burliński, R.

    2016-09-01

    The rapid development of telematics, particularly mobile telephony (GSM), wireless data transmission (GPRS) and satellite positioning (GPS) noticeable in the last decade, resulted in an almost unlimited growth of the possibilities for monitoring of mobile objects. These solutions are already widely used in the so-called “Intelligent Transport Systems” - ITS and affect a significant increase for road safety. The article describes a method of testing and evaluation of Car Safety Systems (Polish abbreviation - SSB) especially for monitoring traffic incidents, such as collisions and accidents. The algorithm of SSB testing process is also presented. Tests are performed on the dynamic test bench, part of which is movable platform with car security system mounted on it. Crash tests with a rigid obstacle are carried out instead of destructive attempts to crash test of the entire vehicle which is expensive. The tested system, depending on the simulated traffic conditions, is mounted in such a position and with the use of components, indicated by the manufacturer for the automotive safety system installation in a vehicle, for which it is intended. Then, the tests and assessments are carried out.

  6. DELPHI time projection chamber

    CERN Multimedia

    1989-01-01

    The time projection chamber is inserted inside the central detector of the DELPHI experiment. Gas is ionised in the chamber as a charged particle passes through, producing an electric signal from which the path of the particle can be found. DELPHI, which ran from 1989 to 2000 on the LEP accelerator, was primarily concerned with particle identification.

  7. DELPHI on the move

    CERN Multimedia

    Maximilien Brice

    2002-01-01

    DELPHI (DEtector for Lepton, Photon and Hadron Identification) was one of four experiments at CERN's Large Electron-Positron collider (LEP). Following LEP's decommissioning, the DELPHI detector has been moved within the cavern at Point 8, and now awaits permanent display.

  8. Ethical Delphi Manual

    NARCIS (Netherlands)

    Millar, K.; Tomkins, S.; Thorstensen, E.; Mepham, B.; Kaiser, M.

    2006-01-01

    An ethical Delphi is an iterative participatory process between experts for exchanging views and arguments on ethical issues. The method is structured around the notion of a virtual committee where the exchange of ideas is conducted remotely through a series of opinion exchanges. The ethical Delphi

  9. Ethical Delphi Manual

    NARCIS (Netherlands)

    Millar, K.; Tomkins, S.; Thorstensen, E.; Mepham, B.; Kaiser, M.

    2006-01-01

    An ethical Delphi is an iterative participatory process between experts for exchanging views and arguments on ethical issues. The method is structured around the notion of a virtual committee where the exchange of ideas is conducted remotely through a series of opinion exchanges. The ethical Delphi

  10. Remediation System Evaluation, A-Z Automotive in West Milford, New Jersey

    Science.gov (United States)

    The A-Z Automotive site is a former gasoline retail outlet and automobile service station located on Union Valley Road between St. George Street and Lou Ann Boulevard in West Milford, Passaic County, New Jersey.

  11. Towards increased reliability by objectification of Hazard Analysis and Risk Assessment (HARA) of automated automotive systems

    OpenAIRE

    Khastgir, Siddartha; Birrell, Stewart A.; Dhadyalla, Gunwant; Sivencrona, Håkan; Jennings, P. A. (Paul A.)

    2017-01-01

    Hazard Analysis and Risk Assessment (HARA) in various domains like automotive, aviation, process industry etc. suffer from the issues of validity and reliability. While there has been an increasing appreciation of this subject, there have been limited approaches to overcome these issues. In the automotive domain, HARA is influenced by the ISO 26262 international standard which details functional safety of road vehicles. While ISO 26262 was a major step towards analysing hazards and risks, lik...

  12. Sorbent Material Property Requirements for On-Board Hydrogen Storage for Automotive Fuel Cell Systems.

    Energy Technology Data Exchange (ETDEWEB)

    Ahluwalia, R. K.; Peng, J-K; Hua, T. Q.

    2015-05-25

    Material properties required for on-board hydrogen storage in cryogenic sorbents for use with automotive polymer electrolyte membrane (PEM) fuel cell systems are discussed. Models are formulated for physical, thermodynamic and transport properties, and for the dynamics of H-2 refueling and discharge from a sorbent bed. A conceptual storage configuration with in-bed heat exchanger tubes, a Type-3 containment vessel, vacuum insulation and requisite balance-of-plant components is developed to determine the peak excess sorption capacity and differential enthalpy of adsorption for 5.5 wt% system gravimetric capacity and 55% well-to-tank (WTT) efficiency. The analysis also determines the bulk density to which the material must be compacted for the storage system to reach 40 g.L-1 volumetric capacity. Thermal transport properties and heat transfer enhancement methods are analyzed to estimate the material thermal conductivity needed to achieve 1.5 kg.min(-1) H-2 refueling rate. Operating temperatures and pressures are determined for 55% WTT efficiency and 95% usable H-2. Needs for further improvements in material properties are analyzed that would allow reduction of storage pressure to 50 bar from 100 bar, elevation of storage temperature to 175-200 K from 150 K, and increase of WTT efficiency to 57.5% or higher.

  13. Development of Forestland Occupation Data Management System Based on Delphi and Access%基于Delphi和Access开发使用林地数据管理系统

    Institute of Scientific and Technical Information of China (English)

    张煜

    2013-01-01

    By taking Microsoft Access as the backstage database and applying program development software Delphi2007 of Code Gear Company,forestland occupation Data Management System was developed,aiming at reducing the workload of the statistical data,ensuring the accuracy of data,improving the data file management,and increasing the work efficiency of forestland occupation project.%以Microsoft Access作为后台数据库,应用程序开发软件Delphi 2007开发了“使用林地数据管理系统”,目的在于减轻数据统计的工作量,保证成果数据的准确性,完善数据档案的管理,进而提高工作效率.

  14. Automotive NVH technology

    CERN Document Server

    Nijman, Eugenius; Priebsch, Hans-Herwig

    2016-01-01

    This book presents seven chapters examining selected noise, vibration and harshness (NVH) topics that are highly relevant for automotive vehicle development. These include applications following the major trends toward increased passenger comfort, vehicle electrification and lightweight design. The authors of the seven chapters, all of which are experts from the automotive industry and academia, present the foremost challenges and potential solutions in this demanding field. Among others, applications for sound optimization in downsized engines, noise optimization in electric powertrains, weight reduction options for exhaust systems, porous materials description, and the vibro-acoustic analysis of geared systems are discussed.

  15. Automotive websites

    CERN Document Server

    Jensen, Todd A

    2006-01-01

    For anyone buying a new car, restoring an old favorite, collecting license plates or looking for motorsports information, the internet is the place to go and this is the book to help you get there. Now with over 650 internet addresses, this expanded and updated guide provides detailed descriptions and reviews of the biggest, best and most interesting automotive websites on the net. Beginning with a brief internet history and helpful hints, it aids the novice (or not so novice) user in picking through the countless automotive sites on the internet. Websites are arranged by topics such as afterm

  16. Technical assessment of cryo-compressed hydrogen storage tank systems for automotive applications.

    Energy Technology Data Exchange (ETDEWEB)

    Ahluwalia, R. K.; Hua, T. Q.; Peng, J.-K.; Lasher, S.; McKenney, K.; Sinha, J.; Nuclear Engineering Division; TIAX LLC

    2010-03-03

    On-board and off-board performance and cost of cryo-compressed hydrogen storage has been assessed and compared to the DOE 2010, 2015 and ultimate targets for automotive applications. The Gen-3 prototype system of Lawrence Livermore National Laboratory was modeled to project the performance of a scaled-down 5.6-kg usable hydrogen storage system. The on-board performance of the system and high-volume manufacturing cost were determined for liquid hydrogen refueling with a single-flow nozzle and a pump that delivers 1.5 kg/min of liquid H{sub 2} to the insulated cryogenic tank capable of being pressurized to 272 atm (4000 psi). The off-board performance and cost of delivering liquid hydrogen were determined for two scenarios in which hydrogen is produced by central steam methane reforming (SMR) and by central electrolysis using electricity from renewable sources. The main conclusions from the assessment are that the cryo-compressed storage system has the potential of meeting the ultimate target for system gravimetric capacity and the 2015 target for system volumetric capacity (see Table I). The system compares favorably with targets for durability and operability although additional work is needed to understand failure modes for combined pressure and temperature cycling. The system may meet the targets for hydrogen loss during dormancy under certain conditions of minimum daily driving. The high-volume manufacturing cost is projected to be 2-4 times the current 2010 target of $4/kWh. For the reference conditions considered most applicable, the fuel cost for the SMR hydrogen production and liquid H{sub 2} delivery scenario is 60%-140% higher than the current target of $2-$3/gge while the well-to-tank efficiency is well short of the 60% target specified for off-board regenerable materials.

  17. Single-Photon Avalanche Diode with Enhanced NIR-Sensitivity for Automotive LIDAR Systems.

    Science.gov (United States)

    Takai, Isamu; Matsubara, Hiroyuki; Soga, Mineki; Ohta, Mitsuhiko; Ogawa, Masaru; Yamashita, Tatsuya

    2016-03-30

    A single-photon avalanche diode (SPAD) with enhanced near-infrared (NIR) sensitivity has been developed, based on 0.18 μm CMOS technology, for use in future automotive light detection and ranging (LIDAR) systems. The newly proposed SPAD operating in Geiger mode achieves a high NIR photon detection efficiency (PDE) without compromising the fill factor (FF) and a low breakdown voltage of approximately 20.5 V. These properties are obtained by employing two custom layers that are designed to provide a full-depletion layer with a high electric field profile. Experimental evaluation of the proposed SPAD reveals an FF of 33.1% and a PDE of 19.4% at 870 nm, which is the laser wavelength of our LIDAR system. The dark count rate (DCR) measurements shows that DCR levels of the proposed SPAD have a small effect on the ranging performance, even if the worst DCR (12.7 kcps) SPAD among the test samples is used. Furthermore, with an eye toward vehicle installations, the DCR is measured over a wide temperature range of 25-132 °C. The ranging experiment demonstrates that target distances are successfully measured in the distance range of 50-180 cm.

  18. Single-Photon Avalanche Diode with Enhanced NIR-Sensitivity for Automotive LIDAR Systems

    Science.gov (United States)

    Takai, Isamu; Matsubara, Hiroyuki; Soga, Mineki; Ohta, Mitsuhiko; Ogawa, Masaru; Yamashita, Tatsuya

    2016-01-01

    A single-photon avalanche diode (SPAD) with enhanced near-infrared (NIR) sensitivity has been developed, based on 0.18 μm CMOS technology, for use in future automotive light detection and ranging (LIDAR) systems. The newly proposed SPAD operating in Geiger mode achieves a high NIR photon detection efficiency (PDE) without compromising the fill factor (FF) and a low breakdown voltage of approximately 20.5 V. These properties are obtained by employing two custom layers that are designed to provide a full-depletion layer with a high electric field profile. Experimental evaluation of the proposed SPAD reveals an FF of 33.1% and a PDE of 19.4% at 870 nm, which is the laser wavelength of our LIDAR system. The dark count rate (DCR) measurements shows that DCR levels of the proposed SPAD have a small effect on the ranging performance, even if the worst DCR (12.7 kcps) SPAD among the test samples is used. Furthermore, with an eye toward vehicle installations, the DCR is measured over a wide temperature range of 25–132 °C. The ranging experiment demonstrates that target distances are successfully measured in the distance range of 50–180 cm. PMID:27043569

  19. Single-Photon Avalanche Diode with Enhanced NIR-Sensitivity for Automotive LIDAR Systems

    Directory of Open Access Journals (Sweden)

    Isamu Takai

    2016-03-01

    Full Text Available A single-photon avalanche diode (SPAD with enhanced near-infrared (NIR sensitivity has been developed, based on 0.18 μm CMOS technology, for use in future automotive light detection and ranging (LIDAR systems. The newly proposed SPAD operating in Geiger mode achieves a high NIR photon detection efficiency (PDE without compromising the fill factor (FF and a low breakdown voltage of approximately 20.5 V. These properties are obtained by employing two custom layers that are designed to provide a full-depletion layer with a high electric field profile. Experimental evaluation of the proposed SPAD reveals an FF of 33.1% and a PDE of 19.4% at 870 nm, which is the laser wavelength of our LIDAR system. The dark count rate (DCR measurements shows that DCR levels of the proposed SPAD have a small effect on the ranging performance, even if the worst DCR (12.7 kcps SPAD among the test samples is used. Furthermore, with an eye toward vehicle installations, the DCR is measured over a wide temperature range of 25–132 °C. The ranging experiment demonstrates that target distances are successfully measured in the distance range of 50–180 cm.

  20. Computerized Simulation of Automotive Air-Conditioning System: A Parametric Study

    Directory of Open Access Journals (Sweden)

    Haslinda Mohamed Kamar

    2013-01-01

    Full Text Available This paper presents results of a parametric study performed on an automotive air-conditioning (AAC system of a passenger car. The goals are to assess the effects of varying the volumetric flow rate of supply air, number of occupants, vehicle speed, and the fractional ventilation air intake (XOA, on the dry-bulb temperature and specific humidity of the air inside the passengers cabin, and on the evaporator coil cooling load of the AAC system. Results of the parametric study show that increasing the supply air flow rate reduces the dry-bulb temperature of the cabin air, increases both the specific humidity of the air and the evaporator coil load. Increasing the number of occupants in the passenger cabin causes the cabin air temperature, specific humidity and the evaporator coil load to increase. Increasing the vehicle speed causes the specific humidity of the cabin air and the evaporator coil cooling load to increase but the dry-bulb temperature of the air is not significantly affected. Increasing the fractional fresh air intake (XOA also increases the cabin air specific humidity and the evaporator coil cooling load.

  1. The Importance of Systems for Controlling Logistics Costs in the Supply Chain: A Case Study from the Slovenian Automotive Industry

    Directory of Open Access Journals (Sweden)

    Sebastjan Škerlič

    2016-06-01

    Full Text Available Participating in the automotive industry brings new responsibilities for suppliers who, in order to meet customer demands, must strive towards improving business processes, while at the same time reducing costs. These demands can disrupt the operations of companies that do not have a system for controlling logistics costs. On the other hand, customer demands can be the cause of other types of disruptions in companies that have such a system in place, stemming from an excessive focus on cost reduction. To tackle this problem, a survey was conducted on a sample of 30 Slovenian companies that operate as suppliers in the automotive industry. Its objective was to determine how different customer demands along the supply chain can affect the business processes of suppliers and the level of logistics costs. The survey revealed that companies that use a system for controlling logistics costs experience fewer disruptions in their business processes in their efforts to satisfy customer demands. These companies also display a higher level of integration of business processes and use a different approach when dealing with the various participants of the supply chain. The survey also sets clear participation guidelines for suppliers in the supply chain of the automotive industry and points out how companies can benefit from using a system for controlling logistics costs in other ways, aside from the cost controlling aspect.

  2. A Study of J/psi Production at the LEP $e^{+} e{-}$ Collider; and the Implementation of the DELPHI Slow Controls System

    CERN Document Server

    Adye, T J

    1998-01-01

    This thesis describes two separate areas of work conducted for the DELPHI detector at LEP. The first concerns the Slow Controls of the DELPHI detector, which enable a single operator to oversee the proper functioning of the apparatus and to diagnose faults as they occur. The hardware and software of this system, as well as their interface to the experiment and the operator, are described. Some conclusions are drawn from seven years' design work and the initial six years' operation of DELPHI. Secondly, a study is made of the production, at e+e- collision centre of mass energies close to the Z0 resonance, of J/psi mesons, decaying to mu+ mu-. J/psi mesons produced via a B-hadron are used to measure the mean B lifetime, tau_B = (1.53 +- 0.11 (stat.) +- 0.06 (syst.)) ps A measurement is also made of the fraction of J/psis produced promptly at the e+e- collision point, N(Z0 -> prompt J/psi X) / N(Z0 -> J/psi X) = (9.6 +- 3.2 (stat.) +- 1.2 (syst.))%. This method is largely model-independent.

  3. Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part I: Numerical Modeling and Baseline Model Analysis

    Science.gov (United States)

    Kumar, Sumeet; Heister, Stephen D.; Xu, Xianfan; Salvador, James R.; Meisner, Gregory P.

    2013-04-01

    A numerical model has been developed to simulate coupled thermal and electrical energy transfer processes in a thermoelectric generator (TEG) designed for automotive waste heat recovery systems. This model is capable of computing the overall heat transferred, the electrical power output, and the associated pressure drop for given inlet conditions of the exhaust gas and the available TEG volume. Multiple-filled skutterudites and conventional bismuth telluride are considered for thermoelectric modules (TEMs) for conversion of waste heat from exhaust into usable electrical power. Heat transfer between the hot exhaust gas and the hot side of the TEMs is enhanced with the use of a plate-fin heat exchanger integrated within the TEG and using liquid coolant on the cold side. The TEG is discretized along the exhaust flow direction using a finite-volume method. Each control volume is modeled as a thermal resistance network which consists of integrated submodels including a heat exchanger and a thermoelectric device. The pressure drop along the TEG is calculated using standard pressure loss correlations and viscous drag models. The model is validated to preserve global energy balances and is applied to analyze a prototype TEG with data provided by General Motors. Detailed results are provided for local and global heat transfer and electric power generation. In the companion paper, the model is then applied to consider various TEG topologies using skutterudite and bismuth telluride TEMs.

  4. Development of a knowledge-based system for the design of composite automotive components

    Science.gov (United States)

    Moynihan, Gary P.; Stephens, J. Paul

    1997-01-01

    Composite materials are comprised of two or more constituents possessing significantly different physical properties. Due to their high strength and light weight, there is an emerging trend to utilize composites in the automotive industry. There is an inherent link between component design and the manufacturing processes necessary for fabrication. To many designers, this situation may be intimidating, since there is frequently little available understanding of composites and their processes. A direct results is high rates of product scrap and rework. Thus, there is a need to implement a systematic approach to composite material design. One such approach is quality function deployment (QFD). By translating customer requirements into design parameters, through the use of heuristics, QFD supports the improvement of product quality during the planning stages prior to actual production. The purpose of this research is to automate the use of knowledge pertaining to the design and application of composite materials within the automobile industry. This is being accomplished through the development of a prototype expert system incorporating a QFD approach. It will provide industry designers with access to knowledge of composite materials that might not be otherwise available.

  5. Extraction of metals from automotive shredder residue:Preliminary results of different leaching systems

    Institute of Scientific and Technical Information of China (English)

    Francesco Ferella; Ida De Michelis; Agostino Scocchera; Mario Pelino; Francesco Vegliò

    2015-01-01

    The study is focused on the extraction of valuable metals from automotive shredder residue (ASR) by different leaching solutions. First, ASR samples were roasted at 600 °C to simulate a thermal treatment processing. Distil ed water, citric and sulphuric acid were preliminarily investigated, thus two further full factorial systems entailing H2SO4–H2O2 and H2SO4–H2O2–Fe3+ were tested. The preliminary experimental results showed that 0.1 mol·L−1 H2SO4 solution extracted 100%of Cu, Fe and Zn, whereas citric acid leached 100%of Zn and Pb, 59%of Fe and 62%of Cu;whereas, H2SO4–H2O2 and H2SO4–H2O2–Fe3+(Fenton's) leaching media showed that Cu, Fe and Zn can be extracted simultaneously and completely from the ASR ashes before final disposal.

  6. Diagnostic automated testing system for automotive ECU%汽车ECU诊断自动化测试系统

    Institute of Scientific and Technical Information of China (English)

    张永刚; 刘志峰

    2015-01-01

    The importance of developing and testing of automotive diagnostic function is rising,since the complexity of automotive electric and electronic systems are growing.This issue introduced a diagnostic automated testing system for automotive ECU(Electronic Control Unit),which tests the diagnostic protocol and diagnostic function automatically,significant increasing the efficiency and accuracy of diagnostic testing, also increasing the coverage and reproducibility of diagnostic testing.%汽车电子电器复杂度的提高使得汽车诊断功能的开发和测试愈加重要。本文介绍了一种汽车ECU(Electronic Control Unit)诊断自动化测试系统,可以实现ECU诊断协议及诊断功能的自动化测试,大幅提高诊断测试效率和精度,增加诊断测试的覆盖度和可重复性。

  7. MEMS (Micro-Electro-Mechanical Systems) for Automotive and Consumer Electronics

    Science.gov (United States)

    Marek, Jiri; Gómez, Udo-Martin

    MEMS sensors gained over the last two decades an impressive width of applications: (a) ESP: A car is skidding and stabilizes itself without driver intervention (b) Free-fall detection: A laptop falls to the floor and protects the hard drive by parking the read/write drive head automatically before impact. (c) Airbag: An airbag fires before the driver/occupant involved in an impending automotive crash impacts the steering wheel, thereby significantly reducing physical injury risk. MEMS sensors are sensing the environmental conditions and are giving input to electronic control systems. These crucial MEMS sensors are making system reactions to human needs more intelligent, precise, and at much faster reaction rates than humanly possible. Important prerequisites for the success of sensors are their size, functionality, power consumption, and costs. This technical progress in sensor development is realized by micro-machining. The development of these processes was the breakthrough to industrial mass-production for micro-electro-mechanical systems (MEMS). Besides leading-edge micromechanical processes, innovative and robust ASIC designs, thorough simulations of the electrical and mechanical behaviour, a deep understanding of the interactions (mainly over temperature and lifetime) of the package and the mechanical structures are needed. This was achieved over the last 20 years by intense and successful development activities combined with the experience of volume production of billions of sensors. This chapter gives an overview of current MEMS technology, its applications and the market share. The MEMS processes are described, and the challenges of MEMS, compared to standard IC fabrication, are discussed. The evolution of MEMS requirements is presented, and a short survey of MEMS applications is shown. Concepts of newest inertial sensors for ESP-systems are given with an emphasis on the design concepts of the sensing element and the evaluation circuit for achieving

  8. Identification of features of electronic prescribing systems to support quality and safety in primary care using a modified Delphi process

    Directory of Open Access Journals (Sweden)

    O'Neill Jennifer A

    2010-04-01

    Full Text Available Abstract Background Electronic prescribing is increasingly being used in primary care and in hospitals. Studies on the effects of e-prescribing systems have found evidence for both benefit and harm. The aim of this study was to identify features of e-prescribing software systems that support patient safety and quality of care and that are useful to the clinician and the patient, with a focus on improving the quality use of medicines. Methods Software features were identified by a literature review, key informants and an expert group. A modified Delphi process was used with a 12-member multidisciplinary expert group to reach consensus on the expected impact of the features in four domains: patient safety, quality of care, usefulness to the clinician and usefulness to the patient. The setting was electronic prescribing in general practice in Australia. Results A list of 114 software features was developed. Most of the features relate to the recording and use of patient data, the medication selection process, prescribing decision support, monitoring drug therapy and clinical reports. The expert group rated 78 of the features (68% as likely to have a high positive impact in at least one domain, 36 features (32% as medium impact, and none as low or negative impact. Twenty seven features were rated as high positive impact across 3 or 4 domains including patient safety and quality of care. Ten features were considered "aspirational" because of a lack of agreed standards and/or suitable knowledge bases. Conclusions This study defines features of e-prescribing software systems that are expected to support safety and quality, especially in relation to prescribing and use of medicines in general practice. The features could be used to develop software standards, and could be adapted if necessary for use in other settings and countries.

  9. SOLID STATE ENERGY CONVERSION ALLIANCE DELPHI SOLID OXIDE FUEL CELL

    Energy Technology Data Exchange (ETDEWEB)

    Steven Shaffer; Sean Kelly; Subhasish Mukerjee; David Schumann; Gail Geiger; Kevin Keegan; John Noetzel; Larry Chick

    2003-12-08

    The objective of Phase I under this project is to develop a 5 kW Solid Oxide Fuel Cell power system for a range of fuels and applications. During Phase I, the following will be accomplished: Develop and demonstrate technology transfer efforts on a 5 kW stationary distributed power generation system that incorporates steam reforming of natural gas with the option of piped-in water (Demonstration System A). Initiate development of a 5 kW system for later mass-market automotive auxiliary power unit application, which will incorporate Catalytic Partial Oxidation (CPO) reforming of gasoline, with anode exhaust gas injected into an ultra-lean burn internal combustion engine. This technical progress report covers work performed by Delphi from January 1, 2003 to June 30, 2003, under Department of Energy Cooperative Agreement DE-FC-02NT41246. This report highlights technical results of the work performed under the following tasks: Task 1 System Design and Integration; Task 2 Solid Oxide Fuel Cell Stack Developments; Task 3 Reformer Developments; Task 4 Development of Balance of Plant (BOP) Components; Task 5 Manufacturing Development (Privately Funded); Task 6 System Fabrication; Task 7 System Testing; Task 8 Program Management; and Task 9 Stack Testing with Coal-Based Reformate.

  10. Modification and Validation of an Automotive Data Processing Unit, Compessed Video System, and Communications Equipment

    Energy Technology Data Exchange (ETDEWEB)

    Carter, R.J.

    1997-04-01

    The primary purpose of the "modification and validation of an automotive data processing unit (DPU), compressed video system, and communications equipment" cooperative research and development agreement (CRADA) was to modify and validate both hardware and software, developed by Scientific Atlanta, Incorporated (S-A) for defense applications (e.g., rotary-wing airplanes), for the commercial sector surface transportation domain (i.e., automobiles and trucks). S-A also furnished a state-of-the-art compressed video digital storage and retrieval system (CVDSRS), and off-the-shelf data storage and transmission equipment to support the data acquisition system for crash avoidance research (DASCAR) project conducted by Oak Ridge National Laboratory (ORNL). In turn, S-A received access to hardware and technology related to DASCAR. DASCAR was subsequently removed completely and installation was repeated a number of times to gain an accurate idea of complete installation, operation, and removal of DASCAR. Upon satisfactory completion of the DASCAR construction and preliminary shakedown, ORNL provided NHTSA with an operational demonstration of DASCAR at their East Liberty, OH test facility. The demonstration included an on-the-road demonstration of the entire data acquisition system using NHTSA'S test track. In addition, the demonstration also consisted of a briefing, containing the following: ORNL generated a plan for validating the prototype data acquisition system with regard to: removal of DASCAR from an existing vehicle, and installation and calibration in other vehicles; reliability of the sensors and systems; data collection and transmission process (data integrity); impact on the drivability of the vehicle and obtrusiveness of the system to the driver; data analysis procedures; conspicuousness of the vehicle to other drivers; and DASCAR installation and removal training and documentation. In order to identify any operational problems not captured by the systems

  11. The Development of Electrorheological Fluids for AN Automotive Semi-Active Suspension System

    Science.gov (United States)

    Weyenberg, Thomas R.; Pialet, Joseph W.; Petek, Nicholas K.

    The feasibility of electrorheological (ER) dampers for an automotive semi-active suspension was evaluated in a three phase program. In the first phase, ER fluid performance targets were derived. The desired ride and handling attributes of the suspension system were translated into damper specifications, which were then translated into the ER fluid performance targets. The damper specifications included dynamic range, bandwidth, power draw, and packaging. The ER fluid performance parameters then included zero-field viscosity, ER stress, response time, and power density. In the second phase, the dampers and the ER fluid were developed to meet the performance targets. Trade-offs were made between damper design and fluid formulation to achieve the desired damper dynamic range and power draw. A state-diagram approach using screen test data was used to select candidate ER fluids. In the third phase of the program, a prototype semi-active suspension system using fast, continuously variable ER dampers was installed on a demonstration vehicle. Heave, pitch, and roll motions of the vehicle were controlled by applying voltages independently to the four dampers as determined by a modified sky-hook algorithm. The system was designed to respond in less than 10 ms with an average power requirement less than 40 W for normal road surfaces and handling. Laboratory data from a pressure driven flow screen test and a damper test are presented that document the ER fluid performance specification and selection process. Vehicle performance data are presented that demonstrate the features of ER technology for the semi-active suspension application. Remaining issues for commercialization of ER fluids are discussed.

  12. Delphi General Ledger -

    Data.gov (United States)

    Department of Transportation — Delphi general ledger contains the following data elements, but is not limited to the United States Standard General Ledger (USSGL) chart of accounts, stores actual,...

  13. 75 FR 1080 - Certain Automotive Multimedia Display and Navigation Systems, Components Thereof, and Products...

    Science.gov (United States)

    2010-01-08

    .... International Trade Commission has determined to grant the joint motion to terminate the above-captioned... Doc No: 2010-89] INTERNATIONAL TRADE COMMISSION [Investigation No. 337-TA-657] Certain Automotive... Commission Determination To Grant the Joint Motion To Terminate the Investigation on the Basis of...

  14. Establishing Evidence for Safety Cases in Automotive Systems – A Case Study

    NARCIS (Netherlands)

    Ridderhof, W.; Gross, H-G.; Doerr, H.

    2007-01-01

    The upcoming safety standard ISO/WD 26262 that has been derived from the more general IEC 61508 and adapted for the automotive industry, introduces the concept of a safety case, a scheme that has already been successfully applied in other sectors of industry such as nuclear, defense, aerospace, and

  15. Design of a Fuel Processor System for Generating Hydrogen for Automotive Applications

    Science.gov (United States)

    Kolavennu, Panini K.; Telotte, John C.; Palanki, Srinivas

    2006-01-01

    The objective of this paper is to design a train of tubular reactors that use a methane feed to produce hydrogen of the desired purity so that it can be utilized by a fuel cell for automotive applications. Reaction engineering principles, which are typically covered at the undergraduate level, are utilized to design this reactor train. It is shown…

  16. 基于Delphi语言开发图书索书号查询系统%Development of Book Call Number Query System Based on Delphi Language

    Institute of Scientific and Technical Information of China (English)

    陈作新

    2012-01-01

    Based on Delphi language, this paper establishes finding system of books call number and presents some example codes. The operation of this system is easy, convenient and all books call number can be find under certain condi- tions quickly.%基于Delphi语言构造了图书索书号查询系统,介绍了部分实例代码。该系统操作方便,能够快速查找所需条件下所有图书的索书号。

  17. ENVIRONMENTAL MANAGEMENT SYSTEMS IN THE AUTOMOTIVE SUPPLY CHAIN IN SOUTH AFRICA: A PILOT STUDY

    Directory of Open Access Journals (Sweden)

    A.C. Brent

    2012-01-01

    Full Text Available

    ENGLISH ABSTRACT: Automobile Original Equipment Manufacturers (OEMs have implemented formal Environmental Management Systems (EMSs globally that require the OEMs to consider the environmental performance and potential liabilities in the supply chain. However, in South Africa, OEMs typically experience resistance from suppliers to focus on environmental issues, compliance with regulations, and OEM requirements. Although the responses from many OEMs have been an attempt to enforce the formal EMS certification and accreditation of suppliers, a case study reveals that such certification and accreditation does not necessarily imply good environmental performance, nor indeed environmental compliance with the national legislation. Apart from general environmental management and compliance information, basic cleaner production process parameters, i.e. water and energy usage, and waste generated, were used to compare the environmental performances of different sized suppliers, with and without formal EMSs, and with variance of financial dependency on an OEM. In order to improve the environmental performance of the entire supply chain, a conceptual model is introduced, which is currently under investigation in the automotive sector of South Africa.

    AFRIKAANSE OPSOMMING:Oorspronklike Toerusting Vervaardigers (OTVs in die motorbedryf het internasionaal formele Omgewingsbestuursisteme (OBS geïmplementeer wat vereis dat die omgewingsprestasie en potensiële aanspreeklikhede van die verskaffingsketting in ag geneem moet word. Nieteenstaande ondervind OTVs in Suid-Afrika weerstand van verskaffers wanneer gefokus word op omgewingsaspekte, voldoening aan regulasies en OTV-verwagtinge. Alhoewel die meerderheid OTVs formele OBS akkreditering probeer afdwing, toon ’n gevallestudie dat dit nie noodwendig omgewingsprestasie, en voldoening aan nasionale omgewingswetgewing, impliseer nie. Afgesien van algemene omgewingsbestuur en regsvoldoening, was

  18. System dynamics comparison of three inventory management models in an automotive parts supply chain

    Directory of Open Access Journals (Sweden)

    Andries Botha

    2017-01-01

    Full Text Available Background: The automotive parts supply chain measures its success in terms of parts availability and stock required to achieve the availability target, measured as allocation fill rate (AFR. The supply chain strives to achieve an AFR target of 95.5% while maintaining low levels of stock.Objective: The first objective of this study is to evaluate the current inventory management approach, namely the maximum inventory position (MIP method, to understand the difference between the theoretical derivation and the actual implementation. The second objective is to develop and compare the performance of a new stock target setting (STS method relative to the MIP methods.Method: The theoretical and actual equations behind the MIP and STS methods are derived for steady state as well as stochastic conditions. A system dynamics simulation model (SDSM was developed to describe both the local and imported supply chains. The SDSM was used to simulate and confirm the parameters for the STS method. It was also used to compare the three inventory management methods against a theoretical environment and actual data sets.Results: The STS method requires a damping factor (DF to ensure it does not cause the bullwhip effect. The SDSM was used to determine that a value equal to the lead time ensures effective damping. In the theoretical environment, the MIPTheory method requires the lowest stock, but also has the lowest AFR. MIPActual achieves the highest AFR, but with significantly higher stock holding. The STS method improves on the AFR achieved by the MIPTheory method, with lower stock holding than the MIPActual method. With the actual demand data sets, the results vary by parts movement type. With fast moving parts, all methods achieve the AFR target, the MIPActual method has a higher stock holding for all cases, and the STS method results in reduced stock holding for 7 of 12 cases. With medium moving parts, the MIPActual method improves on the AFR in all 15 cases

  19. Potentials of Optical Damage Assessment Techniques in Automotive Crash-Concepts composed of FRP-Steel Hybrid Material Systems

    Science.gov (United States)

    Dlugosch, M.; Spiegelhalter, B.; Soot, T.; Lukaszewicz, D.; Fritsch, J.; Hiermaier, S.

    2017-05-01

    With car manufacturers simultaneously facing increasing passive safety and efficiency requirements, FRP-metal hybrid material systems are one way to design lightweight and crashworthy vehicle structures. Generic automotive hybrid structural concepts have been tested under crash loading conditions. In order to assess the state of overall damage and structural integrity, and primarily to validate simulation data, several NDT techniques have been assessed regarding their potential to detect common damage mechanisms in such hybrid systems. Significant potentials were found particularly in combining 3D-topography laser scanning and X-Ray imaging results. Ultrasonic testing proved to be limited by the signal coupling quality on damaged or curved surfaces.

  20. Study of an evaluation index system of nursing undergraduate employability developed using the Delphi method

    Directory of Open Access Journals (Sweden)

    Bi-Rong Ye

    2014-06-01

    Conclusion: High positivity representative of the consulted experts enabled the construction of a reliable index system that can be used as a reference for cultivating nursing undergraduate employability.

  1. Characteristics of a global classification system for perinatal deaths : a Delphi consensus study

    NARCIS (Netherlands)

    Wojcieszek, Aleena M.; Reinebrant, Hanna E.; Leisher, Susannah Hopkins; Allanson, Emma; Coory, Michael; Erwich, Jan Jaap; Froen, J. Frederik; Gardosi, Jason; Gordijn, Sanne; Gulmezoglu, Metin; Heazell, Alexander E. P.; Korteweg, Fleurisca J.; McClure, Elizabeth; Pattinson, Robert; Silver, Robert M.; Smith, Gordon; Teoh, Zheyi; Tuncalp, Ozge; Flenady, Vicki

    2016-01-01

    Background: Despite the global burden of perinatal deaths, there is currently no single, globally-acceptable classification system for perinatal deaths. Instead, multiple, disparate systems are in use world-wide. This inconsistency hinders accurate estimates of causes of death and impedes effective

  2. Analysis and control of an in situ hydrogen generation and fuel cell power system for automotive applications

    Science.gov (United States)

    Kolavennu, Panini K.

    A new future in automotive transportation is approaching where vehicles are powered by new, clean and efficient energy sources. While different technologies will contribute to this future, many see fuel cells as the leading long term candidate for becoming the power source for emissions-free, mass produced light vehicles. The development of emissions-free vehicles, which run directly on hydrogen, is the true long term goal. However significant difficulties exist in developing these vehicles, due to hydrogen storage problems. For automotive applications, it is desirable to use a carbon-based hydrogenous fuel. The focus of this research was to analyze a fuel cell system for automotive applications, which generated hydrogen in situ using methane as a fuel source. This system consists of four parts: (1) an in situ hydrogen generation subsystem, (2) a power generation subsystem, (3) a thermal management subsystem and (4) a switching control subsystem. The novelty of this research lies in the fact that the entire system was considered from a systems engineering viewpoint with realistic constraints. A fuel processor subsystem was designed and its volume optimized to less than 100 liters. A relationship between the fuel fed into the fuel processor and the hydrogen coming out of it was developed. Using a fuel cell model an overall relationship between the fuel feed rate and the power output was established. The fuel cell car must be fully operational within a minute or so of a cold-start and must respond to rapidly varying loads. Significant load transitions occur frequently as a result of changes in driving conditions. These engineering constraints were addressed by coupling a battery to the fuel cell. A switching controller was designed and it was validated using realistic power profiles. Finally, a model reference adaptive controller was designed to handle nonlinearities and load transitions. The adaptive controller performance was enhanced by adding dead zone

  3. A Delphi-Based Framework for systems architecting of in-orbit exploration infrastructure for human exploration beyond Low Earth Orbit

    Science.gov (United States)

    Aliakbargolkar, Alessandro; Crawley, Edward F.

    2014-01-01

    The current debate in the U.S. Human Spaceflight Program focuses on the development of the next generation of man-rated heavy lift launch vehicles. While launch vehicle systems are of critical importance for future exploration, a comprehensive analysis of the entire exploration infrastructure is required to avoid costly pitfalls at early stages of the design process. This paper addresses this need by presenting a Delphi-Based Systems Architecting Framework for integrated architectural analysis of future in-orbit infrastructure for human space exploration beyond Low Earth Orbit. The paper is structured in two parts. The first part consists of an expert elicitation study to identify objectives for the in-space transportation infrastructure. The study was conducted between November 2011 and January 2012 with 15 senior experts involved in human spaceflight in the United States and Europe. The elicitation study included the formation of three expert panels representing exploration, science, and policy stakeholders engaged in a 3-round Delphi study. The rationale behind the Delphi approach, as imported from social science research, is discussed. Finally, a novel version of the Delphi method is presented and applied to technical decision-making and systems architecting in the context of human space exploration. The second part of the paper describes a tradespace exploration study of in-orbit infrastructure coupled with a requirements definition exercise informed by expert elicitation. The uncertainties associated with technical requirements and stakeholder goals are explicitly considered in the analysis. The outcome of the expert elicitation process portrays an integrated view of perceived stakeholder needs within the human spaceflight community. Needs are subsequently converted into requirements and coupled to the system architectures of interest to analyze the correlation between exploration, science, and policy goals. Pareto analysis is used to identify architectures

  4. Production Data Acquisition and Analysis Management System: An Example Based on a Study of Automotive Supplier Solution

    Directory of Open Access Journals (Sweden)

    Lubomir Lengyel

    2013-12-01

    Full Text Available Quality of data coming from manual entry of information is a key element in efficiency of decision making process for all support functions and as well management allowing them to quickly react on changing circumstances of working environment. Principle finding of analysis performed within an automotive production companies shows a need to cover such requirement and develop a robust solution with efficient data collection, business intelligence capabilities and analysis support required for fast decision making process speeding up reaction in case of non-conformity. Purpose of KONIS system is providing a highly efficient solution for manual data entry, statistical analysis and decision making support for modern production company.

  5. LC-Oscillator for 94 GHz Automotive Radar System Fabricated in SiGe:C BiCMOS Technology

    OpenAIRE

    2004-01-01

    This paper presents the design and measurement of a voltage-controlled oscillator (VCO) for the use in a 94 GHz automotive radar system and other applications. The oscillator has been fabricated in a 200 GHz SiGe:C BiCMOS technology with 0.25 µm minimum feature size. The oscillator is fully integrated on a single chip with a chip area of only 0.25 mm2. The fabricated oscillator has a tuning range of 2.2 GHz and a supply voltage of -3 Volt.

  6. Miniature fiber Bragg grating sensor interrogator (FBG-Transceiver) system for use in aerospace and automotive health monitoring systems

    Science.gov (United States)

    Mendoza, Edgar A.; Kempen, Cornelia; Panahi, Allan; Lopatin, Craig

    2007-09-01

    Fiber Bragg grating sensors (FBGs) have gained rapid acceptance in aerospace and automotive structural health monitoring applications for the measurement of strain, stress, vibration, acoustics, acceleration, pressure, temperature, moisture, and corrosion distributed at multiple locations within the structure using a single fiber element. The most prominent advantages of FBGs are: small size and light weight, multiple FBG transducers on a single fiber, and immunity to radio frequency interference. A major disadvantage of FBG technology is that conventional state-of-the-art fiber Bragg grating interrogation systems are typically bulky and heavy bench top instruments that are assembled from off-the-shelf fiber optic and optical components integrated with a signal electronics board into an instrument console. Based on the need for a compact FBG interrogation system, this paper describes recent progress towards the development of a miniature fiber Bragg grating sensor interrogator (FBG-Transceiver TM) system based on multi-channel integrated optic sensor (InOSense) microchip technology. The hybrid InOSense microchip technology enables the integration of all of the functionalities, both passive and active, of conventional bench top FBG sensor interrogators systems, packaged in a miniaturized, low power operation, 2-cm x 5-cm small form factor (SFF) package suitable for the long-term structural health monitoring in applications where size, weight, and power are critical for operation. The sponsor of this program is NAVAIR under a DOD SBIR contract.

  7. Creation of an Exergetic Based Leak Detection and Diagnosis Methodology for Automotive Carbon Dioxide Air Conditioning Systems

    Directory of Open Access Journals (Sweden)

    M. B. Bailey

    2010-03-01

    Full Text Available

    Carbon dioxide automotive air conditioning (AC systems have been under development for over a decade. Although the AC system construction is important, a reliable refrigerant leakage detection system is also vital. A detailed thermodynamic simulation model and fault detection and diagnosis (FDD system, with proposed validation plans, has been developed at Rochester Institute of Technology. A discussion of simulation models that have been developed for various compressors and heat exchangers is presented; they are compared to actual AC systems to develop a realistic experimental setup. Assumptions from previous work are examined and improved.

    • Portions of this paper were previously published in the ECOS'05 and ECOS'07 conference proceedings.

  8. DELPHI Barrel Muon Chamber Module

    CERN Multimedia

    1989-01-01

    The module was used as part of the muon identification system on the barrel of the DELPHI detector at LEP, and was in active use from 1989 to 2000. The module consists of 7 individual muons chambers arranged in 2 layers. Chambers in the upper layer are staggered by half a chamber width with respect to the lower layer. Each individual chamber is a drift chamber consisting of an anode wire, 47 microns in diameter, and a wrapped copper delay line. Each chamber provided 3 signal for each muon passing through the chamber, from which a 3D space-point could be reconstructed.

  9. Assessment of critical thinking: a Delphi study.

    Science.gov (United States)

    Paul, Sheila A

    2014-11-01

    Nurse educators are responsible for preparing nurses who critically analyze patient information and provide meaningful interventions in today's complex health care system. By using the Delphi research method, this study, utilized the specialized and experiential knowledge of Certified Nurse Educators. This original Delphi research study asked Certified Nurse Educators how to assess the critical-thinking ability of nursing students in the clinical setting. The results showed that nurse educators need time, during the clinical experience, to accurately assess each individual nursing student. This study demonstrated the need for extended student clinical time, and a variety of clinical learning assessment tools.

  10. 汽车网络测试系统搭建技术%Introduction on Technology of Building Automotive Network Test System

    Institute of Scientific and Technical Information of China (English)

    赵怡

    2014-01-01

    The core of a variety of automotive control system consists of control units with bus communication network. How to test the network bus effectively before leaving factory is a burning problem for automotive electronic manufacturers. This paper introduces the current technology on building automotive bus network test system.%国内外多种汽车内部控制系统的核心就是由以总线为通信网络的控制单元组成的,如何采用有效的手段对汽车内部网络总线在出厂前进行严格的测试是汽车电子生产厂商亟须解决的难题,文章介绍了现阶段的汽车总线网络测试系统的搭建技术。

  11. A Vision Based System for Monitoring the Loss of Attention in Automotive Drivers

    OpenAIRE

    Dasgupta, Anirban; George, Anjith; Happy, S L; Routray, Aurobinda

    2015-01-01

    On board monitoring of the alertness level of an automotive driver has been a challenging research in transportation safety and management. In this paper, we propose a robust real time embedded platform to monitor the loss of attention of the driver during day as well as night driving conditions. The PERcentage of eye CLOSure (PERCLOS) has been used as the indicator of the alertness level. In this approach, the face is detected using Haar like features and tracked using a Kalman Filter. The E...

  12. Performance of advanced automotive fuel cell systems with heat rejection constraint

    Science.gov (United States)

    Ahluwalia, R. K.; Wang, X.; Steinbach, A. J.

    2016-03-01

    Although maintaining polymer electrolyte fuel cells (PEFC) at temperatures below 80 °C is desirable for extended durability and enhanced performance, the automotive application also requires the PEFC stacks to operate at elevated temperatures and meet the heat rejection constraint, stated as Q/ΔT catalysts in the membrane electrode assemblies. In the illustrative example, stack coolant temperatures >90 °C, stack inlet pressures >2 atm, and cathode stoichiometries cell at the same cell voltage (663 mV) and pressure (2.5 atm) but lower temperature (85 °C), higher cathode stoichiometry (2), and 100% relative humidity.

  13. Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part II: Parametric Evaluation and Topological Studies

    Science.gov (United States)

    Kumar, Sumeet; Heister, Stephen D.; Xu, Xianfan; Salvador, James R.; Meisner, Gregory P.

    2013-06-01

    A comprehensive numerical model has been proposed to model thermoelectric generators (TEGs) for automotive waste heat recovery. Details of the model and results from the analysis of General Motors' prototype TEG were described in part I of the study. In part II of this study, parametric evaluations are considered to assess the influence of heat exchanger, geometry, and thermoelectric module configurations to achieve optimization of the baseline model. The computational tool is also adapted to model other topologies such as transverse and circular configurations (hexagonal and cylindrical) maintaining the same volume as the baseline TEG. Performance analysis of these different topologies and parameters is presented and compared with the baseline design.

  14. Automotive Industry in Malaysia

    DEFF Research Database (Denmark)

    Wad, Peter; Govindaraju, V.G.R. Chandran

    2011-01-01

    expanded in terms of sales, production, employment and local content, but failed in industrial upgrading and international competitiveness. The failures can be attributed to (a) lack of political promotion for high challenge-high support environment, (b) low technological and marketing capabilities and (c......This paper explains the evolution and assesses the development of the Malaysian automotive industry within the premise of infant industry and trade protection framework as well as extended arguments of infant industry using a global value chain perspective. The Malaysian automotive industry......) limited participation in the global value chain. Although the Malaysian infant industry protection policy comprised many promising initiatives, the national and the overall domestic automobile industry ended up as a captive of the regionalised Japanese keiretsu system in automobile manufacturing. A new...

  15. A research on thermoelectric generator's electrical performance under temperature mismatch conditions for automotive waste heat recovery system

    Directory of Open Access Journals (Sweden)

    Z.B. Tang

    2015-03-01

    Full Text Available The thermoelectric generators recover useful energy by the function of thermoelectric modules which can convert waste heat energy into electricity from automotive exhaust. In the actual operation, the electrical connected thermoelectric modules are operated under temperature mismatch conditions and then the problem of decreased power output causes due to the inhomogeneous temperature gradient distribution on heat exchanger surface. In this case study, an individual module test system and a test bench have been carried out to test and analyze the impact of thermal imbalance on the output electrical power at module and system level. Variability of the temperature difference and clamping pressure are also tested in the individual module measurement. The system level experimental results clearly describe the phenomenon of thermoelectric generator's decreased power output under mismatched temperature condition and limited working temperature. This situation is improved with thermal insulation on the modules and proved to be effective.

  16. The Development of a Fuzzy Predictive Control System for Automotive Anti-lock Braking System

    Institute of Scientific and Technical Information of China (English)

    HUANGFU Shihui; BAO Xiangying

    2006-01-01

    This paper presents the model of one-tire kinetics、tires、the braking system and the model of control system. On virtual road, this paper builds a fuzzy predictive control system to insure the best attachment coefficient between tires and road. And it turns out to be that this fuzzy predictive control method has achieved good performances.

  17. Gain-enhanced LTCC system-on-package for automotive UMRR applications

    KAUST Repository

    Ghaffar, Farhan A.

    2012-07-28

    A novel Low Temperature Co-fired Ceramic (LTCC) based SoP for automotive radar applications is presented. For the first time a combination of a relatively low dielectric constant LTCC substrate and a high dielectric constant LTCC superstrate has been incorporated to enhance the overall gain of the module. The superstrate can provide additional protection to the integrated circuits (IC) in the harsh automotive environment. A custom cavity in the LTCC substrate can accommodate the IC, which feeds an aperture coupled patch antenna array. The cavity is embedded below the ground plane that acts as a shield for the IC from antenna radiation. It is estimated that with mere 10 dBm of transmitted RF power the miniature SoP module (sized 2.0 cm × 2.0 cm × 0.22 cm) can communicate up to 67 m. The design\\'s compactness, robustness, transmission power and resultant communication range are highly suitable for Universal Medium Range Radar (UMRR) applications. © 2010 IEEE.

  18. Reliability of automotive and mechanical engineering. Determination of component and system reliability

    Energy Technology Data Exchange (ETDEWEB)

    Bertsche, Bernd [Stuttgart Univ. (Germany). Inst. fuer Maschinenelemente

    2008-07-01

    In the present contemporary climate of global competition in every branch of engineering and manufacture it has been shown from extensive customer surveys that above every other attribute, reliability stands as the most desired feature in a finished product. To survive this relentless fight for survival any organisation, which neglect the plea of attaining to excellence in reliability, will do so at a serious cost Reliability in Automotive and Mechanical Engineering draws together a wide spectrum of diverse and relevant applications and analyses on reliability engineering. This is distilled into this attractive and well documented volume and practising engineers are challenged with the formidable task of simultaneously improving reliability and reducing the costs and down-time due to maintenance. The volume brings together eleven chapters to highlight the importance of the interrelated reliability and maintenance disciplines. They represent the development trends and progress resulting in making this book essential basic material for all research academics, planners maintenance executives, who have the responsibility to implement the findings and maintenance audits into a cohesive reliability policy. Although, the book is centred on automotive engineering nevertheless, the examples and overall treatise can be applied to a wide range of professional practices. The book will be a valuable source of information for those concerned with improved manufacturing performance and the formidable task of optimising reliability. (orig.)

  19. SOLID STATE ENERGY CONVERSION ALLIANCE DELPHI SOLID OXIDE FUEL CELL

    Energy Technology Data Exchange (ETDEWEB)

    Steven Shaffer; Sean Kelly; Subhasish Mukerjee; David Schumann; Gail Geiger; Kevin Keegan; Larry Chick

    2004-05-07

    The objective of this project is to develop a 5 kW Solid Oxide Fuel Cell power system for a range of fuels and applications. During Phase I, the following will be accomplished: Develop and demonstrate technology transfer efforts on a 5 kW stationary distributed power generation system that incorporates steam reforming of natural gas with the option of piped-in water (Demonstration System A). Initiate development of a 5 kW system for later mass-market automotive auxiliary power unit application, which will incorporate Catalytic Partial Oxidation (CPO) reforming of gasoline, with anode exhaust gas injected into an ultra-lean burn internal combustion engine. This technical progress report covers work performed by Delphi from July 1, 2003 to December 31, 2003, under Department of Energy Cooperative Agreement DE-FC-02NT41246. This report highlights technical results of the work performed under the following tasks: Task 1 System Design and Integration; Task 2 Solid Oxide Fuel Cell Stack Developments; Task 3 Reformer Developments; Task 4 Development of Balance of Plant (BOP) Components; Task 5 Manufacturing Development (Privately Funded); Task 6 System Fabrication; Task 7 System Testing; Task 8 Program Management; Task 9 Stack Testing with Coal-Based Reformate; and Task 10 Technology Transfer from SECA CORE Technology Program. In this reporting period, unless otherwise noted Task 6--System Fabrication and Task 7--System Testing will be reported within Task 1 System Design and Integration. Task 8--Program Management, Task 9--Stack Testing with Coal Based Reformate, and Task 10--Technology Transfer from SECA CORE Technology Program will be reported on in the Executive Summary section of this report.

  20. International Congress of Automotive and Transport Engineering

    CERN Document Server

    Ispas, Nicolae

    2017-01-01

    The volume will include selected and reviewed papers from CONAT - International Congress of Automotive and Transport Engineering to be held in Brasov, Romania, in October 2016. Authors are experts from research, industry and universities coming from 14 countries worldwide. The papers are covering the latest developments in automotive vehicles and environment, advanced transport systems and road traffic, heavy and special vehicles, new materials, manufacturing technologies and logistics, accident research and analysis and innovative solutions for automotive vehicles. The conference will be organized by SIAR (Society of Automotive Engineers from Romania) in cooperation with FISITA. .

  1. Algorithm & SoC design for automotive vision systems for smart safe driving system

    CERN Document Server

    Shin, Hyunchul

    2014-01-01

    An emerging trend in the automobile industry is its convergence with information technology (IT). Indeed, it has been estimated that almost 90% of new automobile technologies involve IT in some form. Smart driving technologies that improve safety as well as green fuel technologies are quite representative of the convergence between IT and automobiles. The smart driving technologies include three key elements: sensing of driving environments, detection of objects and potential hazards, and the generation of driving control signals including warning signals. Although radar-based systems are primarily used for sensing the driving environments, the camera has gained importance in advanced driver assistance systems(ADAS). This book covers system-on-a-chip (SoC) designs—including both algorithms and hardware—related with image sensing and object detection by using the camera for smart driving systems. It introduces a variety of algorithms such as lens correction, super resolution, image enhancement, and object ...

  2. Development of Automotive Switches Detection System%车载开关压力检测系统的研发

    Institute of Scientific and Technical Information of China (English)

    杨开宇; 宋冰; 李亭亭; 高印寒

    2013-01-01

    An automatic detection and control system for automotive pressure switch was developed,which improves the intelligent of automotive pressure switch in testing process.The paper expounds the hardware structure of test system,and designs signal conditioning circuit(CMMR is up to 115dB which is proved by experiment).According to the test parameters standard,the data acquisition card was chosen.In view of the noise interference signals in the actual debugging process,this paper puts forward effective control measures.The study shows that the system can fulfill accurately online monitoring for the parameters in the test process.So the system test results can be as the standard of qualified switch.%为了提高车载开关压力检测在测试过程中的智能化水平,开发了车载开关压力的自动检测与控制系统.通过阐述测试系统的硬件构成,完成信号调理电路的设计.根据测试参数指标,对数据采集卡进行了选择,以及针对实际调试过程中产生的噪声干扰信号提出了有效抑制措施.研究结果表明,该系统可以对测试过程中的各参数进行在线监测,测试数据准确,该系统的测试结果可以作为判断开关是否合格的标准.

  3. Automotive battery technology

    CERN Document Server

    Watzenig, Daniel

    2014-01-01

    The use of electrochemical energy storage systems in automotive applications also involves new requirements for modeling these systems, especially in terms of model depth and model quality. Currently, mainly simple application-oriented models are used to describe the physical behavior of batteries. This book provides a step beyond of state-of-the-art modeling showing various different approaches covering following aspects: system safety, misuse behavior (crash, thermal runaway), battery state estimation and electrochemical modeling with the needed analysis (pre/post mortem). All this different approaches are developed to support the overall integration process from a multidisciplinary point-of-view and depict their further enhancements to this process.

  4. The automotive transmission book

    CERN Document Server

    Fischer, Robert; Jürgens, Gunter; Najork, Rolf; Pollak, Burkhard

    2015-01-01

    This book presents essential information on systems and interactions in automotive transmission technology and outlines the methodologies used to analyze and develop transmission concepts and designs. Functions of and interactions between components and subassemblies of transmissions are introduced, providing a basis for designing transmission systems and for determining their potentials and properties in vehicle-specific applications: passenger cars, trucks, buses, tractors, and motorcycles. With these fundamentals the presentation provides universal resources for both state-of-the-art and future transmission technologies, including systems for electric and hybrid electric vehicles.

  5. Reliability in automotive and mechanical engineering determination of component and system reliability

    CERN Document Server

    Bertsche, Bernd

    2008-01-01

    In the present contemporary climate of global competition in every branch of engineering and manufacture it has been shown from extensive customer surveys that above every other attribute, reliability stands as the most desired feature in a finished product. To survive this relentless fight for survival any organisation, which neglect the plea of attaining to excellence in reliability, will do so at a serious cost Reliability in Automotive and Mechanical Engineering draws together a wide spectrum of diverse and relevant applications and analyses on reliability engineering. This is distilled into this attractive and well documented volume and practising engineers are challenged with the formidable task of simultaneously improving reliability and reducing the costs and down-time due to maintenance. The volume brings together eleven chapters to highlight the importance of the interrelated reliability and maintenance disciplines. They represent the development trends and progress resulting in making this book ess...

  6. Component Analysis of Deposits in Selective Catalytic Reduction System for Automotive Diesel Engine

    Directory of Open Access Journals (Sweden)

    Zhu Neng

    2016-01-01

    Full Text Available In this paper, deposits in exhaust pipes for automotive diesel engines were studied by various chemical analysis methods and a kind of analysis process to determine the compositions of organic matter was proposed. Firstly, the elements of the deposits were determined through the element analysis method. Then using characteristic absorption properties of organic functional groups to the infrared spectrum, the functional groups in the deposits were determined. Finally, by GC-MS (gas chromatography - mass spectrometry test, the content of each main component was determined quantitatively. Element analysis results indicated that the deposits adsorbed metal impurities from fuel oil, lubricating oil, mechanical wear and urea water solution. The result of GC-MS test showed that the area percentage of cyanuric acid was the biggest (about 85%, the second was urea (about 4%, and the content of biuret and biurea was scarce.

  7. Characteristics of performance indicators in incentive systems of brazilian automotive industry

    Directory of Open Access Journals (Sweden)

    Rosana Carmen de Meiroz Grillo Gonçalves

    2015-09-01

    Full Text Available This paper provides a general overview of the performance indicators used by Brazilian Automotive Industry in its profit sharing agreements, named PLR agreements. The 39 PLR agreements analyzed had their performance indicators classified in six groups: financial, quality, flexibility, productivity, customers and human resources. The results show a massive presence of traditional non-financial indicators, whereas performance indicators to cover social-environmental aspects have not been found. The predominance of indicators related to productivity and quality raised the possibility that in economic cycles with industry activity expansion, the non-financial indicators can be used as proxies of financial indicators. After analyzing the results, it was suggested that, in future, the study of the indicators basket should include its relations with strategic position, technological sophistication and other factors that impact the selection of indicators.

  8. Automotive active noise control (ANC) system. Jidoshayo active noise control (ANC) system

    Energy Technology Data Exchange (ETDEWEB)

    Hasegawa, S. (Nissan Motor Co. Ltd., Tokyo (Japan))

    1992-11-25

    This paper introduces a successful development of an active noise control (ANC) system that selects and controls noise in an automobile compartment. This is a system that Nissan has developed for practical use for the first time in the world by using an adaptive control theory and a digital signal processor (DSP) that uses ultra-high speed operating elements. The principle for noise silencing in the ANC system utilizes interference of cyclic amplitude of sound with opposite phase. Sounds in an automobile include informative sounds, agreeable sounds, and noise, and combinations of these sounds work complexly on people in a car, of which extent varies depending on individuals. The adaptive control minimizes sounds picked up by a microphone into controlled speaker sound via an multiple error filtered algorithm (MEF-[sub X]LMS) and an adaptive digital filter. Major components of the system include a microphone, a speaker, and a control unit (comprising the adaptive algorithm and the adaptive filter), all having been developed newly. A DSP that operates on ultra-high speed operating elements was used for speedy compliance with complex algorithms, so that the controlled sound combined of engine noise with compartment sound field can be calculated. The noise was reduced by more than 10 dB at maximum. 7 figs.

  9. The DELPHI silicon tracker

    CERN Document Server

    Pernegger, H

    1997-01-01

    The DELPHI collaboration has upgraded the Silicon Vertex Detector in order to cope with the physics requirements for LEP200. The new detector consists of a barrel section with three layers of microstrip detectors and a forward extension made of hybrid pixel and large pitch strip detectors. The layout of the detector and the techniques used for the different parts of the new silicon detector shall be described.

  10. DELPHI: First W particles

    CERN Multimedia

    1996-01-01

    This track is an example of real data collected from the DELPHI detector on the Large Electron-Positron (LEP) collider at CERN, which ran between 1989 and 2000. These are the first pair of W particles produced at LEP2, the high energy upgrade of LEP that took place in 1996. Both Ws decay into a quark-antiquark pair, which are each seen as one of the four jets of hadrons in the detector.

  11. DELPHI: Higgs candidate

    CERN Multimedia

    2001-01-01

    This track is an example of real data collected from the DELPHI detector on the Large Electron-Positron (LEP) collider at CERN, which ran between 1989 and 2000. Its topology is compatible with what is expected from the associated production of a Z boson and Higgs boson of mass 113 GeV that each decay into two jets. A different pairing of the jets could lead to an interpretation compatible with the production of two Z bosons.

  12. DYNAMIC MODEL AND SIMULATION OF A NOVEL ELECTRO-HYDRAULIC FULLY VARIABLE VALVE SYSTEM FOR FOUR-STROKE AUTOMOTIVE ENGINES

    Institute of Scientific and Technical Information of China (English)

    WONG Pak-kin; TAM Lap-mou; LI Ke

    2007-01-01

    In modern four-stroke engine technology, variable valve timing and lift control offers potential benefits for making a high-performance engine. A novel electro-hydraulic fully variable valve train for four-stroke automotive engines is introduced. The construction of the nonlinear mathematic model of the valve train system and its dynamic analysis are also presented. Experimental and simulation results show that the novel electro-hydraulic valve train can achieve fully variable valve timing and lift control. Consequently the engine performance on different loads and speeds will be significantly increased. The technology also permits the elimination of the traditional throttle valve in the gasoline engines and increases engine design flexibility.

  13. The Design of multimedia CAI System with Delphi%基于Delphi语言的多媒体CAI系统设计

    Institute of Scientific and Technical Information of China (English)

    林雪明

    2000-01-01

    Hypermedia support and processing is necessary in the development of CAI systems.A hyper multimedia class TAnimatecell is defined with Delphi VCL, and the fechniques ofderioing sub-multimedia class and seripts interpreter are discussed.%用Delphi语言制作计算机辅助教学软件时,必须实现对超媒体的支持与处理,针对这种情况,阐述了采用Delphi中的VCL构造TAnimateCell类的方法以及在此基础上设计多媒体类和脚本解释析器的技术.

  14. Automotive vehicle sensors

    Energy Technology Data Exchange (ETDEWEB)

    Sheen, S.H.; Raptis, A.C.; Moscynski, M.J.

    1995-09-01

    This report is an introduction to the field of automotive vehicle sensors. It contains a prototype data base for companies working in automotive vehicle sensors, as well as a prototype data base for automotive vehicle sensors. A market analysis is also included.

  15. 基于Delphi4.0实现N/Tier体系结构的学生学分管理系统%Developing of the Students Credit Hour Information System Based on Delphi4.0

    Institute of Scientific and Technical Information of China (English)

    张超; 宗容; 蔡光卉

    2000-01-01

    基于Delphi4.0建立N/Tier体系结构的学生学分管理系统的基础上,详细分析了N/Tier体系结构的具体形式及其关键技术,并探讨了在N/Tier体系结构下如何提高MIS系统的运行效率、可维护性、可扩展性等问题.

  16. Automotive Radar and Lidar Systems for Next Generation Driver Assistance Functions

    Directory of Open Access Journals (Sweden)

    R. H. Rasshofer

    2005-01-01

    Full Text Available Automotive radar and lidar sensors represent key components for next generation driver assistance functions (Jones, 2001. Today, their use is limited to comfort applications in premium segment vehicles although an evolution process towards more safety-oriented functions is taking place. Radar sensors available on the market today suffer from low angular resolution and poor target detection in medium ranges (30 to 60m over azimuth angles larger than ±30°. In contrast, Lidar sensors show large sensitivity towards environmental influences (e.g. snow, fog, dirt. Both sensor technologies today have a rather high cost level, forbidding their wide-spread usage on mass markets. A common approach to overcome individual sensor drawbacks is the employment of data fusion techniques (Bar-Shalom, 2001. Raw data fusion requires a common, standardized data interface to easily integrate a variety of asynchronous sensor data into a fusion network. Moreover, next generation sensors should be able to dynamically adopt to new situations and should have the ability to work in cooperative sensor environments. As vehicular function development today is being shifted more and more towards virtual prototyping, mathematical sensor models should be available. These models should take into account the sensor's functional principle as well as all typical measurement errors generated by the sensor.

  17. Automotive Radar and Lidar Systems for Next Generation Driver Assistance Functions

    Science.gov (United States)

    Rasshofer, R. H.; Gresser, K.

    2005-05-01

    Automotive radar and lidar sensors represent key components for next generation driver assistance functions (Jones, 2001). Today, their use is limited to comfort applications in premium segment vehicles although an evolution process towards more safety-oriented functions is taking place. Radar sensors available on the market today suffer from low angular resolution and poor target detection in medium ranges (30 to 60m) over azimuth angles larger than ±30°. In contrast, Lidar sensors show large sensitivity towards environmental influences (e.g. snow, fog, dirt). Both sensor technologies today have a rather high cost level, forbidding their wide-spread usage on mass markets. A common approach to overcome individual sensor drawbacks is the employment of data fusion techniques (Bar-Shalom, 2001). Raw data fusion requires a common, standardized data interface to easily integrate a variety of asynchronous sensor data into a fusion network. Moreover, next generation sensors should be able to dynamically adopt to new situations and should have the ability to work in cooperative sensor environments. As vehicular function development today is being shifted more and more towards virtual prototyping, mathematical sensor models should be available. These models should take into account the sensor's functional principle as well as all typical measurement errors generated by the sensor.

  18. Effect of Thermoelectric Modules' Topological Connection on Automotive Exhaust Heat Recovery System

    Science.gov (United States)

    Deng, Y. D.; Zheng, S. J.; Su, C. Q.; Yuan, X. H.; Yu, C. G.; Wang, Y. P.

    2016-03-01

    In automotive exhaust-based thermoelectric generators (AETEGs), a certain number of thermoelectric modules are connected in series and/or parallel to recover energy from exhaust gas, which provides a way to improve fuel efficiency of the vehicle. Because of the temperature distribution on the surfaces of heat exchanger, several types of modules are planned for use in an AETEG; however, property disparities among modules exist and wire resistance cannot be neglected in practical application, so experiments have been carried out to research effects of the two factors on the maximum output power of series and parallel connection. The performance of series and parallel connections have been characterized, and mathematic models have been built to analyze and predict the performance of each connection. Experiments and theoretical analysis reveal that parallel connection shows a better performance than series connection when large differences of Seebeck coefficient and resistivity exist. However, wire resistance will cause more significant power dissipation in parallel connection. The authors believe the research presented in this paper is the first to carry out an examination of the impact of module property disparity and wire resistance on the output power of an array of thermoelectric modules connected in series and parallel, which provides a reference for choosing module connection in AETEGs.

  19. Converting an OPC UA software development kit from Java to Delphi.

    OpenAIRE

    Uimonen, Teppo

    2016-01-01

    OPC UA provides a secure and interoperable standard for communication between devices and information systems, but to use it efectively in a software system, an OPC UA SDK written in the implementation language is needed. To develop one for Delphi programming language, this thesis studies how Prosys OPC UA Java SDK can be converted to Delphi. Three issues are identifed in the conversion. First, Java code should be translated to Delphi. Second, an interface is needed to use a C language OP...

  20. 新课标下基于Delphi+Access的中学试卷生成系统设计%Using Delphi+Access to Design and Achieve the Middle School Examination Paper Generation System

    Institute of Scientific and Technical Information of China (English)

    苏有邦; 钱喻锷; 唐秀忠

    2016-01-01

    Test is one of whether to achieve the goal of an important means of assessment training. The new curriculum require-ments to students as the main body, cultivate their autonomous learning ability, inquiry ability. To achieve this goal of training, school examination questions have changed greatly. This paper starts from the generating algorithm of the design of new ques-tions and in Delphi and access environment, realized the automatic generation of test paper.%考试是考核培养目标是否实现的重要手段之一。新课标要求以学生为主体,全面培养他们的自主学习能力、探究能力。为实现这一标培养目标,中学试卷题型发生了重大改变。该文从设计新题型生成算法入手,并在Delphi+Access环境中实现了试卷的自动生成。

  1. Continuous development of schemes for parallel computing of the electrostatics in biological systems: implementation in DelPhi.

    Science.gov (United States)

    Li, Chuan; Petukh, Marharyta; Li, Lin; Alexov, Emil

    2013-08-15

    Due to the enormous importance of electrostatics in molecular biology, calculating the electrostatic potential and corresponding energies has become a standard computational approach for the study of biomolecules and nano-objects immersed in water and salt phase or other media. However, the electrostatics of large macromolecules and macromolecular complexes, including nano-objects, may not be obtainable via explicit methods and even the standard continuum electrostatics methods may not be applicable due to high computational time and memory requirements. Here, we report further development of the parallelization scheme reported in our previous work (Li, et al., J. Comput. Chem. 2012, 33, 1960) to include parallelization of the molecular surface and energy calculations components of the algorithm. The parallelization scheme utilizes different approaches such as space domain parallelization, algorithmic parallelization, multithreading, and task scheduling, depending on the quantity being calculated. This allows for efficient use of the computing resources of the corresponding computer cluster. The parallelization scheme is implemented in the popular software DelPhi and results in speedup of several folds. As a demonstration of the efficiency and capability of this methodology, the electrostatic potential, and electric field distributions are calculated for the bovine mitochondrial supercomplex illustrating their complex topology, which cannot be obtained by modeling the supercomplex components alone.

  2. Design, Operation, Control, and Economics of a Photovoltaic/Fuel Cell/Battery Hybrid Renewable Energy System for Automotive Applications

    Directory of Open Access Journals (Sweden)

    Zachary S. Whiteman

    2015-06-01

    Full Text Available Meeting rapidly growing global energy demand—without producing greenhouse gases or further diminishing the availability of non-renewable resources—requires the development of affordable low-emission renewable energy systems. Here, we develop a hybrid renewable energy system (HRES for automotive applications—specifically, a roof-installed photovoltaic (PV array combined with a PEM fuel cell/NiCd battery bus currently operating shuttle routes on the University of Delaware campus. The system’s overall operating objectives—meeting the total power demand of the bus and maintaining the desired state of charge (SOC of the NiCd battery—are achieved with appropriately designed controllers: a logic-based “algebraic controller” and a standard PI controller. The design, implementation, and performance of the hybrid system are demonstrated via simulation of real shuttle runs under various operating conditions. The results show that both control strategies perform equally well in enabling the HRES to meet its objectives under typical operating conditions, and under sudden cloud cover conditions; however, at consistently high bus speeds, battery SOC maintenance is better, and the system consumes less hydrogen, with PI control. An economic analysis of the PV investment necessary to realize the HRES design objectives indicates a return on investment of approximately 30% (a slight, but nonetheless positive, ~$550 profit over the bus lifetime in Newark, DE, establishing the economic viability of the proposed addition of a PV array to the existing University of Delaware fuel cell/battery bus.

  3. Modeling of PEM Fuel Cell Stack System using Feed-forward and Recurrent Neural Networks for Automotive Applications

    Directory of Open Access Journals (Sweden)

    Mr. M. Karthik

    2014-05-01

    Full Text Available Artificial Neural Network (ANN has become a significant modeling tool for predicting the performance of complex systems that provide appropriate mapping between input-output variables without acquiring any empirical relationship due to the intrinsic properties. This paper is focussed towards the modeling of Proton Exchange Membrane (PEM Fuel Cell system using Artificial Neural Networks especially for automotive applications. Three different neural networks such as Static Feed Forward Network (SFFN, Cascaded Feed Forward Network (CFFN & Fully Connected Dynamic Recurrent Network (FCRN are discussed in this paper for modeling the PEM Fuel Cell System. The numerical analysis is carried out between the three Neural Network architectures for predicting the output performance of the PEM Fuel Cell. The performance of the proposed Networks is evaluated using various error criteria such as Mean Square Error, Mean Absolute Percentage Error, Mean Absolute Error, Coefficient of correlation and Iteration Values. The optimum network with high performance indices (low prediction error values and iteration values can be used as an ancillary model in developing the PEM Fuel Cell powered vehicle system. The development of the fuel cell driven vehicle model also incorporates the modeling of DC-DC Power Converter and Vehicle Dynamics. Finally the Performance of the Electric vehicle model is analyzed for two different drive cycle such as M-NEDC & M-UDDS.

  4. The Delphi Technique in Educational Research

    OpenAIRE

    Green, Ravonne A.

    2014-01-01

    The Delphi Technique has been useful in educational settings in forming guidelines, standards, and in predicting trends. Judd lists these major uses of the Delphi Technique in higher education: (a) cost-effectiveness, (b) cost–benefit analysis, (c) curriculum and campus planning, and (d) university-wide educational goals and objectives. The thorough Delphi researcher seeks to reconcile the Delphi consensus with current...

  5. A STUDY OF THE VALUE SYSTEM OF AUTOMOTIVE SECTOR UNDER THE FOCUS OF THE ECOLOGY OF COMPANIES

    Directory of Open Access Journals (Sweden)

    Sérgio Dantas

    2015-03-01

    Full Text Available The study presents the results of a survey of a network of auto dealers and their relationship with the players’ member’s value system of an automaker. With a literature review on the ecology of enterprises and value chain system and tried to understand how to give the interactions between members of the same chain. Seeking representation and identify the strength of each level. It was selected for this research an automaker, market leader, in popular new cars. For data collection were developed a structured questionnaire (survey with open questions and a Likert scale. Despite the quantitative character, the survey sought to obtain respondents' impressions about the current relationship and prospected with the other members of your value system (suppliers, competitors and customers. The result shows that in this segment, the customer and the supplier (automaker have a great bargaining power over automotive Dealers, providing little leeway in the strategies. Compared to competitors, it was observed that there is still a dim view and undefined by the managers of the dealerships, meaning that in addition to monitoring of prices and promotions, nothing more is known about the main competitors.

  6. Model-based diagnosis through Structural Analysis and Causal Computation for automotive Polymer Electrolyte Membrane Fuel Cell systems

    Science.gov (United States)

    Polverino, Pierpaolo; Frisk, Erik; Jung, Daniel; Krysander, Mattias; Pianese, Cesare

    2017-07-01

    The present paper proposes an advanced approach for Polymer Electrolyte Membrane Fuel Cell (PEMFC) systems fault detection and isolation through a model-based diagnostic algorithm. The considered algorithm is developed upon a lumped parameter model simulating a whole PEMFC system oriented towards automotive applications. This model is inspired by other models available in the literature, with further attention to stack thermal dynamics and water management. The developed model is analysed by means of Structural Analysis, to identify the correlations among involved physical variables, defined equations and a set of faults which may occur in the system (related to both auxiliary components malfunctions and stack degradation phenomena). Residual generators are designed by means of Causal Computation analysis and the maximum theoretical fault isolability, achievable with a minimal number of installed sensors, is investigated. The achieved results proved the capability of the algorithm to theoretically detect and isolate almost all faults with the only use of stack voltage and temperature sensors, with significant advantages from an industrial point of view. The effective fault isolability is proved through fault simulations at a specific fault magnitude with an advanced residual evaluation technique, to consider quantitative residual deviations from normal conditions and achieve univocal fault isolation.

  7. Understanding the formative stage of technological innovation system development: The case of natural gas as an automotive fuel

    Energy Technology Data Exchange (ETDEWEB)

    Suurs, Roald A.A., E-mail: roald.suurs@tno.n [Innovation Studies Group, Copernicus Institute for Sustainable Development and Innovation, Utrecht University, Heidelberglaan 2, 3584 CS Utrecht (Netherlands); TNO Built Environment and Geosciences, Business Unit Innovation and Environment, Van Mourik Broekmanweg 6, 2628 XE Delft (Netherlands); Hekkert, Marko P.; Kieboom, Sander; Smits, Ruud E.H.M. [Innovation Studies Group, Copernicus Institute for Sustainable Development and Innovation, Utrecht University, Heidelberglaan 2, 3584 CS Utrecht (Netherlands)

    2010-01-15

    This study contributes to insights into mechanisms that influence the successes and failures of emerging energy technologies. It is assumed that for an emerging technology to fruitfully develop, it should be fostered by a Technological Innovation System (TIS), which is the network of actors, institutions and technologies in which it is embedded. For an emerging technology a TIS has yet to be built up. This research focuses on the dynamics of this build-up process by mapping the development of seven key activities: so-called system functions. The main contribution revolves around the notion of cumulative causation, or the phenomenon that the build-up of a TIS accelerates due to system functions reinforcing each other over time. As an empirical basis, an analysis is provided of the historical development of the TIS around automotive natural gas technology in the Netherlands (1970-2007). The results show that this TIS undergoes a gradual build-up in the 1970s, followed by a breakdown in the 1980s and, again, a build-up from 2000 to 2007. It is shown that underlying these trends are different forms of cumulative causation, here called motors of innovation. The study provides strategic insights for practitioners that aspire to support such motors of innovation.

  8. Understanding the formative stage of technological innovation system development. The case of natural gas as an automotive fuel

    Energy Technology Data Exchange (ETDEWEB)

    Suurs, Roald A.A. [Innovation Studies Group, Copernicus Institute for Sustainable Development and Innovation, Utrecht University, Heidelberglaan 2, 3584 CS Utrecht (Netherlands); TNO Built Environment and Geosciences, Business Unit Innovation and Environment, Van Mourik Broekmanweg 6, 2628 XE Delft (Netherlands); Hekkert, Marko P.; Kieboom, Sander; Smits, Ruud E.H.M. [Innovation Studies Group, Copernicus Institute for Sustainable Development and Innovation, Utrecht University, Heidelberglaan 2, 3584 CS Utrecht (Netherlands)

    2010-01-15

    This study contributes to insights into mechanisms that influence the successes and failures of emerging energy technologies. It is assumed that for an emerging technology to fruitfully develop, it should be fostered by a Technological Innovation System (TIS), which is the network of actors, institutions and technologies in which it is embedded. For an emerging technology a TIS has yet to be built up. This research focuses on the dynamics of this build-up process by mapping the development of seven key activities: so-called system functions. The main contribution revolves around the notion of cumulative causation, or the phenomenon that the build-up of a TIS accelerates due to system functions reinforcing each other over time. As an empirical basis, an analysis is provided of the historical development of the TIS around automotive natural gas technology in the Netherlands (1970-2007). The results show that this TIS undergoes a gradual build-up in the 1970s, followed by a breakdown in the 1980s and, again, a build-up from 2000 to 2007. It is shown that underlying these trends are different forms of cumulative causation, here called motors of innovation. The study provides strategic insights for practitioners that aspire to support such motors of innovation. (author)

  9. Application of GetSystemMetrics Function Based on Delphi%基于Delphi的GetSystemMetrics函数应用

    Institute of Scientific and Technical Information of China (English)

    陈彬茹

    2008-01-01

    GetSystemMetrics函数是Windows API(Application Program Interface)函数中的一员.利用这一函数,可以获取很多关于系统的信息,包括软件系统和硬件系统等,对于面向计算机软、硬件系统检测、维护的应用程序开发有重要的应用价值.本文讨论了Delphi下GetSystemMetrics函数的典型应用,并提供对应的程序验证.

  10. Automotive Oil Measurement System Model Based on Fuel Weight%基于重量的汽车油量测量系统理论模型

    Institute of Scientific and Technical Information of China (English)

    张叶; 郝源隆

    2013-01-01

      传统汽车油量测量系统应用浮子测量存油液面来实现,存在稳定性和精确度的问题,在研究实际车辆结构的基础上,提出了通过4个压力计来实现测量油量重量的理论模型。%To the problem of poor stability and accuracy in traditional automotive oil measurement system using float to measure the oil level ,on the basis of the study on the actual vehicle structure , this paper presents a theoretical model of automotive oil measurement system which uses four pressure gauges to measure the oil weight .

  11. 城市公交车自动报站器设计%Design of Automotive Bus Stop Announcing System

    Institute of Scientific and Technical Information of China (English)

    林小军; 赵怀坤; 金英才; 张娟

    2011-01-01

    The Automotive Bus Stop Announcing System was designed, which used infrared sensing technology. It can be directly embedded into the existing bus stop announcing systems, and infrared transmitters were set up in front of the station. The infrared receivers were loaded in each bus, and the announcer was controlled by the received signal, and the phonetics chip could be used to achieve the automatic station report without manual operatlon%设计出城市公交自动报站器.该设备可直接嵌入到现有的公交车报站系统中,采用红外线传感技术,在站前或拐弯若干米处设立红外线发射器,在每辆公交车上装入红外接收器,以接收到的信号来控制报站器,声音系统可用语音芯片,实现了自动报站,无需人工操作.

  12. INTEGRATED AUTOMOTIVE MANUFACTURING SUPPLY

    Directory of Open Access Journals (Sweden)

    P.J.S. Van Dyk

    2012-01-01

    Full Text Available

    ENGLISH ABSTRACT: Supply planning and traffic flow planning are major activities in the automotive manufacturing environment worldwide. Traditionally, the impact of supply planning strategies on plant traffic is rarely considered. This paper describes the development of a Decision Support System (DSS that will assist automotive manufacturers to analyse the effect of supply planning decisions on plant traffic during the supply planning phase of their logistics planning process. In essence, this DSS consists of a Supply Medium Decision Support Tool (SMDST (an interactive MS-Excel model with Visual Basic interfacing and a traffic flow simulation model tool (using eMPlant simulation software.

    AFRIKAANSE OPSOMMING: Verskaffingsbeplanning en verkeersvloeibeplanning is belangrike aktiwiteite in die motorvervaardigingsbedryf wêreldwyd. Tradisioneel word die uitwerking van verskaffings-beplanningsstrategië op aanlegverkeer selde in ag geneem. Hierdie artikel beskryf die ontwikkeling van ’n Besluitnemings Ondersteuningstelsel (DSS wat motorvervaardigers sal ondersteun in die analise van die effek van verskaffingsbeplanningbesluite op aanlegverkeer tydens die verskaffingsbeplanningsfase van hulle logistieke beplanningsproses. Hierdie DSS bestaan hoofsaaklik uit ’n Verskaffings-vervoermiddel Besluitnemingshulpmiddel (SMDST (’n interaktiewe MS-Excel model met “Visual Basic” koppelling asook ’n simulasiemodel van verkeersvloei (met eM-Plant simulasiesagteware.

  13. ENHANCING ORGANISATIONAL INFORMATION FLOW AND KNOWLEDGE CREATION IN RE-ENGINEERING SUPPLY CHAIN SYSTEMS: AN ANALYSIS OF THE U.S. AUTOMOTIVE PARTS AND SUPPLIES MODEL

    OpenAIRE

    STEPHAN KUDYBA

    2006-01-01

    The ongoing initiative of business process re-engineering in organisations has largely been attributed to innovations in information technologies that have enabled firms to increase productivity in their operations. The following paper addresses essential concepts in supply chain networks and describes the systems approach the U.S. automotive industry has implemented to augment their supply chain management initiatives. The focus of re-engineering the supply chain is enhanced data capture and...

  14. Reform in medical and health sciences educational system: a Delphi study of faculty members' views at Shiraz University of Medical Sciences.

    Science.gov (United States)

    Salehi, A; Harris, N; Lotfi, F; Hashemi, N; Kojouri, J; Amini, M

    2014-04-03

    Despite the strengths in the Iranian medical and health sciences educational system, areas in need of improvement have been noted. The purpose of this study was to understand the views of faculty members at Shiraz University of Medical Sciences about current and future needs for medical and health sciences education, with the goal of improving the quality of the educational system. The data were collected using a Delphi consensus method. Analysis of the findings identified the following key themes among the factors likely to contribute to medical and health sciences education and training: adding and/or increasing student numbers in higher degrees in preference to associate degrees; providing more interactive, student-centred teaching methods; improving the educational content with more practical and research-based courses tailored to society's needs; and an emphasis on outcome-based student evaluation techniques. These changes aim to respond to health trends in society and enhance the close relationship between medical education and the needs of the Iranian society.

  15. Antenna Arrays and Automotive Applications

    CERN Document Server

    Rabinovich, Victor

    2013-01-01

    This book throws a lifeline to designers wading through mounds of antenna array patents looking for the most suitable systems for their projects. Drastically reducing the research time required to locate solutions to the latest challenges in automotive communications, it sorts and systematizes material on cutting-edge antenna arrays that feature multi-element communication systems with enormous potential for the automotive industry. These new systems promise to make driving safer and more efficient, opening up myriad applications, including vehicle-to-vehicle traffic that prevents collisions, automatic toll collection, vehicle location and fine-tuning for cruise control systems. This book’s exhaustive coverage begins with currently deployed systems, frequency ranges and key parameters. It proceeds to examine system geometry, analog and digital beam steering technology (including "smart" beams formed in noisy environments), maximizing signal-to-noise ratios, miniaturization, and base station technology that ...

  16. Delphi FND Application Object Library -

    Data.gov (United States)

    Department of Transportation — Delphi FND Application Object Library contains the following data elements, but are not limited to temporary data tables for the logged in session, information about...

  17. Automotive Design

    Science.gov (United States)

    1991-01-01

    Analytical Design Service Corporation, Ann Arbor, MI, used NASTRAN (a NASA Structural Analysis program that analyzes a design and predicts how parts will perform) in tests of transmissions, engine cooling systems, internal engine parts, and body components. They also use it to design future automobiles. Analytical software can save millions by allowing computer simulated analysis of performance even before prototypes are built.

  18. 用Delphi设计电子文件管理系统%A Delphi-based design of electronic document management system

    Institute of Scientific and Technical Information of China (English)

    陈建华; 胡开明

    2012-01-01

    The use of computer and communication technology in daily work, the establishment of internal business relationship in companies and the increase of electronic documents are companioned with such problems as management, access and efficiency. A Delphi-based design of electronic document management system is set up to solve such problems and an electronic document database is suggested to track, record and monitor the management, the collation, the storage and the access to electronic documents.%随着计算机技术和通信技术被广泛地应用到日常工作中,以及企业内部各种业务系统的建立,企业内部的电子文件数量快速增长,这些电子文件以各式各样的文件格式分散存储,造成管理困难,查找缓慢,效率低下。为了提高工作效率,便于检索、查询,提出用Delphi设计电子文件管理系统,建立电子文件资料数据库,对电子文件活动进行全面追踪、记录与监控,实现对电子文件的整理、归档、维护保管以及科学应用。

  19. Tank-automotive robotics

    Science.gov (United States)

    Lane, Gerald R.

    1999-07-01

    To provide an overview of Tank-Automotive Robotics. The briefing will contain program overviews & inter-relationships and technology challenges of TARDEC managed unmanned and robotic ground vehicle programs. Specific emphasis will focus on technology developments/approaches to achieve semi- autonomous operation and inherent chassis mobility features. Programs to be discussed include: DemoIII Experimental Unmanned Vehicle (XUV), Tactical Mobile Robotics (TMR), Intelligent Mobility, Commanders Driver Testbed, Collision Avoidance, International Ground Robotics Competition (ICGRC). Specifically, the paper will discuss unique exterior/outdoor challenges facing the IGRC competing teams and the synergy created between the IGRC and ongoing DoD semi-autonomous Unmanned Ground Vehicle and DoT Intelligent Transportation System programs. Sensor and chassis approaches to meet the IGRC challenges and obstacles will be shown and discussed. Shortfalls in performance to meet the IGRC challenges will be identified.

  20. AUTOMOTIVE DIESEL MAINTENANCE 1. UNIT III, MAINTAINING THE FUEL SYSTEM--DETROIT DIESEL ENGINE.

    Science.gov (United States)

    Human Engineering Inst., Cleveland, OH.

    THIS MODULE OF A 30-MODULE COURSE IS DESIGNED TO DEVELOP AN UNDERSTANDING OF THE OPERATION AND MAINTENANCE OF THE DIESEL ENGINE FUEL SYSTEM. TOPICS ARE (1) PURPOSE OF THE FUEL SYSTEM, (2) TRACING THE FUEL FLOW, (3) MINOR COMPONENTS OF THE FUEL SYSTEM, (4) MAINTENANCE TIPS, (5) CONSTRUCTION AND FUNCTION OF THE FUEL INJECTORS, AND (6)…

  1. Autonomous Control System for a Squeeze Mode Mr Vibration Isolator in an Automotive Engine Mount

    Directory of Open Access Journals (Sweden)

    Rosół Maciej

    2014-09-01

    Full Text Available The investigated autonomous control system for a squeeze mode magnetorheological (MR vibration isolator is based on an ultra-low power microcontroller MSP430F5529. The design structure of the control system and the dedicated real-time system are briefly presented and the laboratory testing data are summarised.

  2. Automotive electronics design fundamentals

    CERN Document Server

    Zaman, Najamuz

    2015-01-01

    This book explains the topology behind automotive electronics architectures and examines how they can be profoundly augmented with embedded controllers. These controllers serve as the core building blocks of today’s vehicle electronics. Rather than simply teaching electrical basics, this unique resource focuses on the fundamental concepts of vehicle electronics architecture, and details the wide variety of Electronic Control Modules (ECMs) that enable the increasingly sophisticated "bells & whistles" of modern designs.  A must-have for automotive design engineers, technicians working in automotive electronics repair centers and students taking automotive electronics courses, this guide bridges the gap between academic instruction and industry practice with clear, concise advice on how to design and optimize automotive electronics with embedded controllers.

  3. An interactive web-based design system for rubber injection mold: Automotive rubber parts

    Directory of Open Access Journals (Sweden)

    Chamnarn Thongmark

    2016-10-01

    Full Text Available This research aims at integrating a knowledge-based system and web-based technology to facilitate the rubber and rubber composite injection mold design. The system integrates both of computer-aided design and web-based management by using the application programming interface. The research processes started with gathering data and knowledge concerning on rubber injection mold design and process, with the designed framework of the system included. An example part was demonstrated in order to validate the developed system. Based on standardized procedures, the system provides counseling that is able to resolve relevant issues at the early stage of the mold design. The system can be used for both designing and training in rubber mold fabrication.

  4. Review on Automotive Power Generation System on Plug-in Hybrid Electric Vehicles & Electric Vehicles

    Directory of Open Access Journals (Sweden)

    Leong Yap Wee

    2016-01-01

    Full Text Available Regenerative braking is a function to recharge power bank on the Plug-in electric vehicles (PHEV and electric vehicles (EV. The weakness of this system is, it can only perform its function when the vehicle is slowing down or by stepping the brake foot pedal. In other words, the electricity recharging system is inconsistent, non-continuous and geography dependent. To overcome the weakness of the regenerative braking system, it is suggested that to apply another generator which is going to be parallel with the regenerative braking system so that continuous charging can be achieved. Since the ironless electricity generator has a less counter electromotive force (CEMF comparing to an ironcored electricity generator and no cogging torque. Applying the ironless electricity generator parallel to the regenerative braking system is seen one of the options which creates sustainable charging system compared to cored electricity generator.

  5. An interactive web-based design system for rubber injection mold: Automotive rubber parts

    OpenAIRE

    Chamnarn Thongmark; Jariyaporn Onwong

    2016-01-01

    This research aims at integrating a knowledge-based system and web-based technology to facilitate the rubber and rubber composite injection mold design. The system integrates both of computer-aided design and web-based management by using the application programming interface. The research processes started with gathering data and knowledge concerning on rubber injection mold design and process, with the designed framework of the system included. An example part was demonstrated i...

  6. An interactive web-based design system for rubber injection mold: Automotive rubber parts

    OpenAIRE

    Chamnarn Thongmark; Jariyaporn Onwong

    2016-01-01

    This research aims at integrating a knowledge-based system and web-based technology to facilitate the rubber and rubber composite injection mold design. The system integrates both of computer-aided design and web-based management by using the application programming interface. The research processes started with gathering data and knowledge concerning on rubber injection mold design and process, with the designed framework of the system included. An example part was demonstrated i...

  7. AUTOMOTIVE DIESEL MAINTENANCE, UNIT V, MAINTAINING THE LUBRICATION SYSTEM--DETROIT DIESEL ENGINE.

    Science.gov (United States)

    Human Engineering Inst., Cleveland, OH.

    THIS MODULE OF A 30-MODULE COURSE IS DESIGNED TO DEVELOP AN UNDERSTANDING OF THE OPERATION AND MAINTENANCE OF THE DIESEL ENGINE LUBRICATION SYSTEM. TOPICS ARE LUBE OILS USED, MAINTENANCE OF THE LUBRICATION SYSTEM, AND CRANKCASE VENTILATION COMPONENTS. THE MODULE CONSISTS OF A SELF-INSTRUCTIONAL BRANCH PROGRAMED TRAINING FILM "BASIC ENGINE…

  8. INFRASTRUCTURAL BACKBONE OF ENABLING AND CONVERGING TECHNOLOGIES FOR MASS CUSTOMIZATION MANUFACTURING SYSTEM IN AUTOMOTIVE INDUSTRIES

    Directory of Open Access Journals (Sweden)

    Nandkumar Gilke

    2013-03-01

    Full Text Available Successful implementation of Mass Customization can result in a challenging manufacturing environment with both high volume production and high product mix, where the customers expect individualized products at the same price they are paying for mass-produced items. Meeting this challenge requires changes in the manufacturing strategies, increase in the flexibility of the production equipments and the most importantly are the adaptable computer systems which make this possible in the manufacturing enterprise. The major requirement is to develop a system which can adapt quickly in order to start new production or to react quickly in failure scenario. Thus the system should have the ability of self improving, self-adaptable and self healing. Thus there is a need for technical migration from a well established flexible manufacturing system (FMS to intelligent and reconfigurable manufacturing system. This paper describes the major enabling and converging technologies facilitating mass customization manufacturing systems in automobile industries in Indian setting and also discusses the proposed architecture for Mass Customization Manufacturing System.

  9. System identification techniques for automotive applications; Identifikation der Wankdynamik eines Kraftfahrzeugs mit Parameterschaetzverfahren und Neuronalen Netzen

    Energy Technology Data Exchange (ETDEWEB)

    Halfmann, C.; Holzmann, H.; Schwarz, R. [Technische Univ. Darmstadt (Germany). Inst. fuer Regelungstechnik; Wuertenberger, M. [BMW AG, Muenchen (Germany). Forschungs- und Ingenieurzentrum

    1998-12-31

    Due to people`s rising comfort and safety demands, today`s vehicles are equipped with various control systems supporting the driver. Most of these systems are based on the knowledge of several special vehicle parameters. Based on the example of the identification of the roll motion dynamics, this contribution describes the application of two techniques to determine unknown parameters and the nonlinear system behaviour of the vehicle. (orig.) [Deutsch] Aufgrund des in den letzten Jahren stark angestiegenen Sicherheitsbewusstseins der Fahrzeugkaeufer werden moderne Kraftfahrzeuge mit diversen Regelsystemen zur Unterstuetzung des Fahrers in kritischen Fahrsituationen ausgeruestet. Die meisten dieser Systeme benoetigen fuer ihre Funktion die Kenntnis spezieller Fahrzeugparameter. Am Beispiel der Identifikation der Wankdynamik eines Pkw werden in diesem Beitrag zwei Verfahren zur Identifikation von unbekannten Parametern und zur Beschreibung des nichtlinearen Systemverhaltens des Kraftfahrzeugs vorgestellt. (orig.)

  10. Dynamic characteristics of an automotive fuel cell system for transitory load changes

    DEFF Research Database (Denmark)

    Rabbani, Raja Abid; Rokni, Masoud

    2013-01-01

    stack. Controls for temperatures, pressures, reactant stoichiometry and flows are implemented to simulate the system behavior for different loads and operating conditions. Simulation results for transitory load variations are discussed. Cell voltage and system efficiency are influenced by current...... and recirculation pump during these load changes. Also, the amount of water saturation at cathode is found to be abruptly fluctuating and its removal from cathode is dependent on operating temperature and reactant stoichiometry. © 2013 Elsevier Ltd....

  11. Technical Assessment of Cryo-Compressed Hydrogen Storage Tank Systems for Automotive Applications

    Energy Technology Data Exchange (ETDEWEB)

    Ahluwalia, Rajesh [Argonne National Lab. (ANL), Argonne, IL (United States); Hua, T. Q. [Argonne National Lab. (ANL), Argonne, IL (United States); Peng, J. -K. [Argonne National Lab. (ANL), Argonne, IL (United States); Lasher, S. [TIAX LLC, Lexington, MA (United States); McKenney, Kurtis [TIAX LLC, Lexington, MA (United States); Sinha, J. [TIAX LLC, Lexington, MA (United States)

    2009-12-01

    Technical report describing DOE's second assessment report on a third generation (Gen3) system capable of storing hydrogen at cryogenic temperatures within a pressure vessel on-board a vehicle. The report includes an overview of technical progress to date, including the potential to meet DOE onboard storage targets, as well as independent reviews of system cost and energy analyses of the technology paired with delivery costs.

  12. New Automotive Air Conditioning System Simulation Tool Developed in MATLAB/Simulink

    Energy Technology Data Exchange (ETDEWEB)

    Kiss, T.; Chaney, L.; Meyer, J.

    2013-07-01

    Further improvements in vehicle fuel efficiency require accurate evaluation of the vehicle's transient total power requirement. When operated, the air conditioning (A/C) system is the largest auxiliary load on a vehicle; therefore, accurate evaluation of the load it places on the vehicle's engine and/or energy storage system is especially important. Vehicle simulation software, such as 'Autonomie,' has been used by OEMs to evaluate vehicles' energy performance. A transient A/C simulation tool incorporated into vehicle simulation models would also provide a tool for developing more efficient A/C systems through a thorough consideration of the transient A/C system performance. The dynamic system simulation software Matlab/Simulink was used to develop new and more efficient vehicle energy system controls. The various modeling methods used for the new simulation tool are described in detail. Comparison with measured data is provided to demonstrate the validity of the model.

  13. Safety assessment of envisaged systems for automotive hydrogen supply and utilization

    Energy Technology Data Exchange (ETDEWEB)

    Landucci, Gabriele [Dipartimento di Ingegneria Chimica, Chimica Industriale e Scienza dei Materiali, Universita di Pisa, via Diotisalvi n.2, 56126 Pisa (Italy); Tugnoli, Alessandro; Cozzani, Valerio [Dipartimento di Ingegneria Chimica, Mineraria e delle Tecnologie Ambientali, Alma Mater Studiorum - Universita di Bologna, via Terracini n.28, 40131 Bologna (Italy)

    2010-02-15

    A novel consequence-based approach was applied to the inherent safety assessment of the envisaged hydrogen production, distribution and utilization systems, in the perspective of the widespread hydrogen utilization as a vehicle fuel. Alternative scenarios were assessed for the hydrogen system chain from large scale production to final utilization. Hydrogen transportation and delivery was included in the analysis. The inherent safety fingerprint of each system was quantified by a set of Key Performance Indicators (KPIs). Rules for KPIs aggregation were considered for the overall assessment of the system chains. The final utilization stage resulted by large the more important for the overall expected safety performance of the system. Thus, comparison was carried out with technologies proposed for the use of other low emission fuels, as LPG and natural gas. The hazards of compressed hydrogen-fueled vehicles resulted comparable, while reference innovative hydrogen technologies evidenced a potentially higher safety performance. Thus, switching to the inherently safer technologies currently under development may play an important role in the safety enhancement of hydrogen vehicles, resulting in a relevant improvement of the overall safety performance of the entire hydrogen system. (author)

  14. Investigations on the magnetic field coupling of automotive high voltage systems to determine relevant parameters for an EMR-optimized designing

    Science.gov (United States)

    Krause, David; John, Werner; Weigel, Robert

    2016-03-01

    The implementation of electrical drive trains in modern vehicles is a new challenge for EMC development. This contribution depicts a variety of investigations on magnetic field coupling of automotive high-voltage (HV) systems in order to fulfil the requirements of an EMR-optimized designing. The theoretical background is discussed within the scope of current analysis, including the determination of current paths and spectral behaviour. It furthermore presents models of shielded HV cables with particular focus on the magnetic shielding efficiency. Derived findings are validated by experimental measurements of a state-of-the-art demonstrator on system level. Finally EMC design rules are discussed in the context of minimized magnetic fields.

  15. CASE STUDY OF THE OPTIMIZING THE AUTOMOTIVE MANUFACTURING SYSTEMS EFFICIENCY VIA APPLYING NEW METHOD OF SCHEDULING

    Directory of Open Access Journals (Sweden)

    Seyedehfarzaneh Nojabaei

    2014-01-01

    Full Text Available Efficiency is becoming a pivotal aspect in each manufacturing system and scheduling plays a crucial role in sustaining it. The applicability of distributed computing to coordinate and execute jobs has been investigated in the past literature. Moreover, it is significant that even for sensitive industrial systems the only criterion of allocating jobs to appropriate machines is the FIFO policy. On the other flip, many researchers are of the opinion that the main reason behind failing to provide fairness in distributed systems is considering the only criterion of time stamp to judge upon and form the queue of jobs with the aim of allocating those jobs to the machines. In order to increase the efficiency of sensitive industrial system, this study takes into consideration of three criteria of each job including priority, time action and time stamp. The methodology adopted by this study is definition of job scheduler and positioning jobs in temporary queue and sorting via developing bubble sort. In sorting algorithm criterion of priority, time action should be considered besides time stamp to recognize the tense jobs for processing earlier. To evaluate this algorithm first a numerical test case (simulation is programmed and then the case study performing in order to optimize efficiency of applying this method in real manufacturing system. Eventually the results of this study provided evidence on that the rate of efficiency is increased.

  16. Optimization of damping in the passive automotive suspension system with using two quarter-car models

    Science.gov (United States)

    Lozia, Z.; Zdanowicz, P.

    2016-09-01

    The paper presents the optimization of damping in the passive suspension system of a motor vehicle moving rectilinearly with a constant speed on a road with rough surface of random irregularities, described according to the ISO classification. Two quarter-car 2DoF models, linear and non-linear, were used; in the latter, nonlinearities of spring characteristics of the suspension system and pneumatic tyres, sliding friction in the suspension system, and wheel lift-off were taken into account. The smoothing properties of vehicle tyres were represented in both models. The calculations were carried out for three roads of different quality, with simulating four vehicle speeds. Statistical measures of vertical vehicle body vibrations and of changes in the vertical tyre/road contact force were used as the criteria of system optimization and model comparison. The design suspension displacement limit was also taken into account. The optimum suspension damping coefficient was determined and the impact of undesirable sliding friction in the suspension system on the calculation results was estimated. The results obtained make it possible to evaluate the impact of the structure and complexity of the model used on the results of the optimization.

  17. Development and testing of a magnetic position sensor system for automotive and avionics applications

    Science.gov (United States)

    Jacobs, Bryan C.; Nelson, Carl V.

    2001-08-01

    A magnetic sensor system has been developed to measure the 3-D location and orientation of a rigid body relative to an array of magnetic dipole transmitters. A generalized solution to the measurement problem has been formulated, allowing the transmitter and receiver parameters (position, orientation, number, etc.) to be optimized for various applications. Additionally, the method of images has been used to mitigate the impact of metallic materials in close proximity to the sensor. The resulting system allows precise tracking of high-speed motion in confined metal environments. The sensor system was recently configured and tested as an abdomen displacement sensor for an automobile crash-test dummy. The test results indicate a positional accuracy of approximately 1 mm rms during 20 m/s motions. The dynamic test results also confirmed earlier covariance model predictions, which were used to optimize the sensor geometry. A covariance analysis was performed to evaluate the applicability of this magnetic position system for tracking a pilot's head motion inside an aircraft cockpit. Realistic design parameters indicate that a robust tracking system, consisting of lightweight pickup coils mounted on a pilot's helmet, and an array of transmitter coils distributed throughout a cockpit, is feasible. Recent test and covariance results are presented.

  18. DESIGN, DEVELOPMENT & IMPLEMENTATION OF ONTOLOGICAL KNOWLEDGE BASED SYSTEM FOR AUTOMOTIVE ASSEMBLY LINES

    Directory of Open Access Journals (Sweden)

    Muhammad Baqar Raza

    2011-09-01

    Full Text Available Dynamism and uncertainty are genuine threats for current high technology organisations. Capability to change is the crux of sustainability of current large organisations. Modern manufacturing philosophies, including agile and lean, are not enough to be competitive in global market therefore a new emerging paradigm i.e. reconfigurable manufacturing systems is fast emerging to complement the application of lean and agile manufacturing systems. Product, Process and Resource (PPR are the core areas in an engineering domain of a manufacturing enterprise which are tightly coupled with each other. Change in one (usually product affects the others therefore engineering change management activity has to tackle PPR change effects. Current software applications do not provide an unequivocal infrastructure where PPR can be explicitly related. It follows that reconfigurable techniques can be further complemented with the help of knowledge based systems to design, engineer, manufacture, commission and change existing processes and resources against changed products.

  19. MM-wave integrated circuits and their applications to communication and automotive systems

    Science.gov (United States)

    Quentin, P.; Dourlens, C.; Camiade, M.; Pons, D.

    1999-08-01

    After a short presentation of the market outlook of the commercial applications of millimetre-wave systems, we present three examples of a successful development of MMIC chip-sets: one chip-set for a full duplex Ka-band transceiver for a multipoint communication system; one chip-set for a 40 GHz MVDS subscriber terminal and, finally, one chip-set for a 76.5 GHz car radar system for ACC. In all three cases, a full MMIC architecture is used. In our view, this is the only solution to allow the high yield and high volume fabrication of the RF front-end modules at the very low costs which are required for market development.

  20. The Oracle of Delphi Encore!

    CERN Document Server

    2000-01-01

    After the great success of the performance last winter the company Mimescope and CERN stage again The Oracle of Delphi! A performance with acrobatics, mime and music played in the heart of CERN laboratory. Kept in suspense between dream and reality inside the fertile imagination of the brilliant English physicist Paul Dirac, the audience dives into the fascinating world of antimatter. The performance will be staged in the PS Soutn Hall, close to LEAR, where the first atoms of antihydrogen were produced. After each performance there will be a short tour around the hall. From 11 January 2001 to 04 February 2001 every Thursday (EXCEPT 1st February!), Friday and Saturday at 20.00 h, and Sundays at 18.00 h. Purchase of tickets from Forum Meyrin, open Monday to Saturday from 14.00h to 18.00h, tel: 022/989.34.34, or through the Billetel system tel: 0901.553.901 (1.50 CHF per minute). On the days of the event last minute tickets can still be purchased at the Reception desk of bldg 33 on CERN site. Please arrive ...

  1. The Oracle of Delphi Encore!

    CERN Multimedia

    2001-01-01

    After the great success of the performance last winter the company Mimescope and CERN stage again The Oracle of Delphi! A performance with acrobatics, mime and music played in the heart of CERN laboratory. Kept in suspense between dream and reality inside the fertile imagination of the brilliant English physicist Paul Dirac, the audience dives into the fascinating world of antimatter. The performance will be staged in the PS Soutn Hall, close to LEAR, where the first atoms of antihydrogen were produced. After each performance there will be a short tour around the hall. - From 11 January 2001 to 04 February 2001 every Thursday (EXCEPT 1st February!), Friday and Saturday at 20.00 h, and Sundays at 18.00 h. - Purchase of tickets from Forum Meyrin, open Monday to Saturday from 14.00h to 18.00h, tel: 022/989.34.34, or through the Billetel system tel: 0901.553.901 (1.50 CHF per minute). On the days of the event last minute tickets can still be purchased at the Reception desk of bldg 33 on CERN site. Please arrive ...

  2. Design of A Smart Automotive Ventilation System For A Parked Car

    Directory of Open Access Journals (Sweden)

    Gaurav Kumar Jaiswal

    2012-06-01

    Full Text Available The temperature inside a car can rise up to 30oC more than the outside temperature and pose a serious threat for children or pets left in the car, when it is parked outside during summer. The increase in temperature of the car cabin is due to various modes of heat transfer such as conduction, convection and radiation. However, radiation along with the absorption is the main cause of this dramatic rise in temperature. This paper mainly focuses on regulating the internal temperature of the car. A new ventilation system has been designed that employs exhaust fan and blower, temperature sensors and electronic control circuitry to automatically control the temperature inside the car cabin under the constraint that ignition system is off. Experimental investigation is performed on a four wheeler vehicle parked under direct sun to observe temperature variation inside the car to understand the temperature difference between the inside and outside of the car. Furthermore, experiments were done on a prototype of a car-cabin, which was designed and fabricated based on the simulation performed using SOLIDWORKS. Two experiments were conducted with different ambient temperature and the targeted temperature at which the smart system should be activated. It was observed that the temperature inside the car dropped significantly when the smart ventilation system was on.

  3. MATLAB/Simulink Framework for Modeling Complex Coolant Flow Configurations of Advanced Automotive Thermal Management Systems

    Energy Technology Data Exchange (ETDEWEB)

    Titov, Gene; Lustbader, Jason; Leighton, Daniel; Kiss, Tibor

    2016-04-05

    The National Renewable Energy Laboratory's (NREL's) CoolSim MATLAB/Simulink modeling framework was extended by including a newly developed coolant loop solution method aimed at reducing the simulation effort for arbitrarily complex thermal management systems. The new approach does not require the user to identify specific coolant loops and their flow. The user only needs to connect the fluid network elements in a manner consistent with the desired schematic. Using the new solution method, a model of NREL's advanced combined coolant loop system for electric vehicles was created that reflected the test system architecture. This system was built using components provided by the MAHLE Group and included both air conditioning and heat pump modes. Validation with test bench data and verification with the previous solution method were performed for 10 operating points spanning a range of ambient temperatures between -2 degrees C and 43 degrees C. The largest root mean square difference between pressure, temperature, energy and mass flow rate data and simulation results was less than 7%.

  4. Power train and emission control: allocation procedure by OBD-II system for automotive technology

    Science.gov (United States)

    Kalita, Porag

    2017-06-01

    OBD-II, systems were designed to maintain low emissions of in use vehicles, including light and medium duty vehicles. In 1989, the California code of Regulations (CCR) known as OBD - II was adopted by the California Air Resource Board (CARB) and the objective to reduce hydrocarbon (HC) emission caused by malfunction of the vehicles emission control systems. OBD-II provides additional information to engineer for diagnosis and repair of emissions related problems. OBD-II, standardizes on the amount of memory (Freeze Frame) it uses to store the readings of the vehicle sensor when it logs on emission related Intermittent Trouble code (IT). The intent of OBD-II, systems is to detect most vehicle malfunctions when performance of a power train component or system deteriorates to the point that the vehicle’s HC emission exceed standard. The vehicle operator is notified at the time when the vehicle begins to marginally exceed emission standards, by illuminating the Malfunctions Indicator Light (MIL).

  5. Impact of the electric compressor for automotive air conditioning system on fuel consumption and performance analysis

    Science.gov (United States)

    Zulkifli, A. A.; Dahlan, A. A.; Zulkifli, A. H.; Nasution, H.; Aziz, A. A.; Perang, M. R. M.; Jamil, H. M.; Misseri, M. N.

    2015-12-01

    Air conditioning system is the biggest auxiliary load in a vehicle where the compressor consumed the largest. Problem with conventional compressor is the cooling capacity cannot be control directly to fulfill the demand of thermal load inside vehicle cabin. This study is conducted experimentally to analyze the difference of fuel usage and air conditioning performance between conventional compressor and electric compressor of the air conditioning system in automobile. The electric compressor is powered by the car battery in non-electric vehicle which the alternator will recharge the battery. The car is setup on a roller dynamometer and the vehicle speed is varied at 0, 30, 60, 90 and 110 km/h at cabin temperature of 25°C and internal heat load of 100 and 400 Watt. The results shows electric compressor has better fuel consumption and coefficient of performance compared to the conventional compressor.

  6. Control-Oriented Models for Real-Time Simulation of Automotive Transmission Systems

    Directory of Open Access Journals (Sweden)

    Cavina N.

    2015-01-01

    Full Text Available A control-oriented model of a Dual Clutch Transmission (DCT was developed for real-time Hardware In the Loop (HIL applications, to support model-based development of the DCT controller and to systematically test its performance. The model is an innovative attempt to reproduce the fast dynamics of the actuation system while maintaining a simulation step size large enough for real-time applications. The model comprehends a detailed physical description of hydraulic circuit, clutches, synchronizers and gears, and simplified vehicle and internal combustion engine sub-models. As the oil circulating in the system has a large bulk modulus, the pressure dynamics are very fast, possibly causing instability in a real-time simulation; the same challenge involves the servo valves dynamics, due to the very small masses of the moving elements. Therefore, the hydraulic circuit model has been modified and simplified without losing physical validity, in order to adapt it to the real-time simulation requirements. The results of offline simulations have been compared to on-board measurements to verify the validity of the developed model, which was then implemented in a HIL system and connected to the Transmission Control Unit (TCU. Several tests have been performed on the HIL simulator, to verify the TCU performance: electrical failure tests on sensors and actuators, hydraulic and mechanical failure tests on hydraulic valves, clutches and synchronizers, and application tests comprehending all the main features of the control actions performed by the TCU. Being based on physical laws, in every condition the model simulates a plausible reaction of the system. A test automation procedure has finally been developed to permit the execution of a pattern of tests without the interaction of the user; perfectly repeatable tests can be performed for non-regression verification, allowing the testing of new software releases in fully automatic mode.

  7. Developments in fuel cell systems for automotive application; Entwicklungstendenzen von Brennstoffzellensystemen fuer die Anwendung im Automobil

    Energy Technology Data Exchange (ETDEWEB)

    Treffinger, P.; Thalau, O. [DLR Deutsches Zentrum fuer Luft- und Raumfahrt e.V., Stuttgart (Germany). Inst. fuer Fahrzeugkonzepte; Friedrich, K.A. [DLR Deutsches Zentrum fuer Luft- und Raumfahrt e.V., Stuttgart (Germany). Inst. fuer Technische Thermodynamik

    2008-07-01

    In recent years, fuel cell systems for passenger cars have reached a high technological level leading to attractive vehicle concepts. It is expected that the future progress regarding power density increase will be slower. However, there are still a number of open questions, e.g. if the combination of cost targets and requested life time will be achieved. Also there is no final evidence, whether the actual operating parameters will meet customer's requirements. A progress in fundamental technology, e.g. improved electrolyte membranes, would be very beneficial for commercialisation. (orig.)

  8. Optimization of active magnetic bearings for automotive flywheel energy storage systems based on soft magnetic materials

    Science.gov (United States)

    Recheis, M.; Schweighofer, B.; Fulmek, P.; Wegleiter, H.

    2013-01-01

    For active magnetically suspended rotors in mobile flywheel energy storage systems the lowest possible weight, smallest size and a low price is required. Since the flywheel is operated in vacuum and very little heat can be dissipated from the rotor, the bearing's magnetic losses have to be as minimal as well. This paper compares the design and optimization of homopolar radial active magnetic bearings with 3 different types of laminated steel. The first type is a standard transformer steel, the second one is high flux cobalt steel and the third one is high flux cobalt steel with high tensile strength.

  9. Optimization of active magnetic bearings for automotive flywheel energy storage systems based on soft magnetic materials

    Directory of Open Access Journals (Sweden)

    Wegleiter H.

    2013-01-01

    Full Text Available For active magnetically suspended rotors in mobile flywheel energy storage systems the lowest possible weight, smallest size and a low price is required. Since the flywheel is operated in vacuum and very little heat can be dissipated from the rotor, the bearing’s magnetic losses have to be as minimal as well. This paper compares the design and optimization of homopolar radial active magnetic bearings with 3 different types of laminated steel. The first type is a standard transformer steel, the second one is high flux cobalt steel and the third one is high flux cobalt steel with high tensile strength.

  10. Monitoring of manufacturing processes in the automotive industry using indoor location system

    Science.gov (United States)

    Ionescu, LM; Belu, N.; Rachieru, N.; Mazăre, AG; Anghel, D.-C.

    2016-08-01

    This paper presents a method for locating the operators, equipment and parts using radio communications systems. Specifically there will be radio transceiver arranged in a network of active and passive radio receivers placed on personnel, equipment or parts. Based on a radio triangulation method, it is determined the location of the all resources and parts involved in manufacturing process. The transceivers communicate with each other via “routers” - also components of the network. Such a structure may extend over large distances even in indoor spaces where there are obstacles (walls between rooms). The location is done by determining the power of transmission signal for at least three end points. The receiver position is then transmitted over the network through routers, to a central server where all positions of the resources are centralized. Our solution is a non-invasive and low cost method for determining resource position in the factory. The system can be used for both resource planning production for current process more efficient and for further analysis of the movement of resources during previous processes with possible adjustments to the workspace and re-planning of resources for future processes.

  11. Online Collaborative Learning Enhancement Through the Delphi Method

    Directory of Open Access Journals (Sweden)

    Zheng LI

    2006-04-01

    Full Text Available A variety of field trials have been conducted at NJIT in the past few years to demonstrate the utility of a Delphi-like approach to promoting asynchronous class wide collaboration. These utilized the Social Decision Support System (SDSS originally developed as a Computer Mediated Communication (CMC system for large group decision support. This paper provides an overview of these studies and then focuses on a recent case study in the fall of 2003 that demonstrated the ability of a computer mediated asynchronous Delphi process as a tool to scaffold collaborative idea generation and evaluation in both face to face and distance courses.

  12. Operation, optimisation, and performance of the DELPHI RICH detectors

    CERN Document Server

    Albrecht, E; Augustinus, A; Baillon, Paul; Battaglia, Marco; Bloch, D; Boudinov, E; Brunet, J M; Carrié, P; Cavalli, P; Christophel, E; Davenport, M; Dracos, M; Eklund, L; Erzen, B; Fischer, P A; Fokitis, E; Fontanelli, F; Gracco, Valerio; Hallgren, A; Joram, C; Juillot, P; Kjaer, N J; Kluit, P M; Lenzen, G; Liko, D; Mahon, J R; Maltezos, S; Markou, A; Neufeld, N; Nielsen, B S; Petrolini, A; Podobnik, T; Polok, G; Sajot, G; Sannino, M; Schyns, E; Strub, R; Tegenfeldt, F; Thadome, J; Tristram, G; Ullaland, O; Vulpen, I V

    1999-01-01

    The Ring Imaging Cherenkov detectors of DELPHI represent a large-scale particle identification system which covers almost the full angular acceptance of DELPHI. The combination of liquid and gas radiators (C sub 4 F sub 1 sub 0 , C sub 5 F sub 1 sub 2 , and C sub 6 F sub 1 sub 4) provides particle identification over the whole secondary particle momentum spectrum at LEP I and LEP II. Continuing optimisation on the hardware as well as on the online and offline software level have resulted in a stable operation of the complete detector system for more than five years at full physics performance.

  13. Thermoelectric Generators for the Integration into Automotive Exhaust Systems for Passenger Cars and Commercial Vehicles

    Science.gov (United States)

    Frobenius, Fabian; Gaiser, Gerd; Rusche, Ulrich; Weller, Bernd

    2016-03-01

    A special thermoelectric generator system design and the setup of a thermoelectric generator for the integration into the exhaust line of combustion engine-driven vehicles are described. A prototype setup for passenger cars and the effects on the measured power output are shown. Measurement results using this setup show the potential and the limitations of a setup based on thermoelectric modules commercially available today. In a second step, a short outline of the detailed mathematical modeling of the thermoelectric generator and simulation studies based on this model are presented. By this means, it can be shown by which measures an improvement of the system power output can be achieved—even if today's modules are used. Furthermore, simulation studies show how the exhaust gas conditions of diesel- and Otto-engines significantly affect the requirements on thermoelectric materials as well as the potential and the design of the thermoelectric generator. In a further step, the design and the setup of a thermoelectric generator for an application in a commercial vehicle are presented. This thermoelectric generator is designed to be integrated into the exhaust aftertreatment box of the vehicle. Experimental results with this setup are performed and presented. The results show that thermoelectric generators can become an interesting technology for exhaust waste heat recovery due to the fact that they comprise non-moving parts. However, the efficiency of the modules commercially available today is still far from what is required. Hence, modules made of new materials known from laboratory samples are urgently required. With regard to future CO2 regulations, a large market opportunity for modules with a high efficiency can be expected.

  14. Active materials for automotive adaptive forward lighting Part 1: system requirements vs. material properties

    Science.gov (United States)

    Keefe, Andrew C.; Browne, Alan L.; Johnson, Nancy L.

    2011-04-01

    Adaptive Frontlighting Systems (AFS in GM usage) improve visibility by automatically optimizing the beam pattern to accommodate road, driving and environmental conditions. By moving, modifying, and/or adding light during nighttime, inclement weather, or in sharp turns, the driver is presented with dynamic illumination not possible with static lighting systems The objective of this GM-HRL collaborative research project was to assess the potential of active materials to decrease the cost, mass, and packaging volume of current electric stepper-motor AFS designs. Solid-state active material actuators, if proved suitable for this application, could be less expensive than electric motors and have lower part count, reduced size and weight, and lower acoustic and EMF noise1. This paper documents Part 1 of the collaborative study, assessing technically mature, commercially available active materials for use as actuators. Candidate materials should reduce cost and improve AFS capabilities, such as increased angular velocity on swivel. Additional benefits to AFS resulting from active materials actuators were to be identified as well such as lower part count. In addition, several notional approaches to AFS were documented to illustrate the potential function, which is developed more fully in Part 2. Part 1 was successful in verifying the feasibility of using two active materials for AFS: shape memory alloys, and piezoelectrics. In particular, this demonstration showed that all application requirements including those on actuation speed, force, and cyclic stability to effect manipulation of the filament assembly and/or the reflector could be met by piezoelectrics (as ultrasonic motors) and SMA wire actuators.

  15. Optimization of Automotive Suspension System by Design of Experiments: A Nonderivative Method

    Directory of Open Access Journals (Sweden)

    Anirban C. Mitra

    2016-01-01

    Full Text Available A lot of health issues like low back pain, digestive disorders, and musculoskeletal disorders are caused as a result of the whole body vibrations induced by automobiles. This paper is concerned with the enhancement and optimization of suspension performance by using factorial methods of Design of Experiments, a nonderivative method. It focuses on the optimization of ride comfort and determining the parameters which affect the suspension behavior significantly as per the guidelines stated in ISO 2631-1:1997 standards. A quarter car test rig integrated with a LabVIEW based data acquisition system was developed to understand the real time behavior of a vehicle. In the pilot experiment, only three primary suspension parameters, that is, spring-stiffness, damping, and sprung mass, were considered and the full factorial method was implemented for the purpose of optimization. But the regression analysis of the data obtained rendered a very low goodness of fit which indicated that other parameters are likely to influence the response. Subsequently, steering geometry angles, camber and toe and tire pressure, were included in the design. Fractional factorial method with six factors was implemented to optimize ride comfort. The resultant optimum combination was then verified on the test rig with high correlation.

  16. National Automotive Center - NAC

    Data.gov (United States)

    Federal Laboratory Consortium — Encouraged by the advantages of collaboration, the U.S. Army Tank Automotive Research, Development and Engineering Center (TARDEC) worked with the Secretary of the...

  17. Design method of automotive powertrain mounting system based on vibration and noise limitations of vehicle level

    Science.gov (United States)

    Shangguan, Wen-Bin; Liu, Xiao-Ang; Lv, Zhao-Ping; Rakheja, Subhash

    2016-08-01

    The design logic and calculation method for determining mount stiffness and damping for a Powertrain Mounting System (PMS) based on reductions of vehicle vibration and noise contributed by mounts is proposed in this paper. Firstly, the design target for a PMS with regard to vibration and noise limitations of vehicle level contributed form mounts is described. Then a vehicle model with 13 Degree of Freedoms (DOFs) is proposed, which includes 6DOFs for the powertrain, 3 DOFs for the car body and 4DOFs for the four unsprung mass, and the dynamic equation for the model is derived. Some widely used models, such as the 6 DOFs model of the powertrain for the design calculation of a PMS, the 7 DOFs model (Body's 3 DOFs; unsprung mass's 4 DOFs) and the 9 DOFs model (powertrain's 6 DOFs; Body's 3 DOFs) for ride analysis of a vehicle, are the specific cases of the presented model of 13 DOF. Thirdly, the calculation method for obtaining the vibration of seat track and evaluation point and the noise at driver right ear is presented based on the mount forces and the vibration and noise transfer functions. An optimization process is proposed to get the mount stiffness and damping based on minimization of vehicle vibration and noise, and the optimized stiffness is validated by comparing the calculated vibration and noise and limitations. In the end of this paper, the natural frequencies and mode energies for the powertrain, the body and the unsprung mass are calculated using different models and the results are compared and analyzed.

  18. A NARX damper model for virtual tuning of automotive suspension systems with high-frequency loading

    Science.gov (United States)

    Alghafir, M. N.; Dunne, J. F.

    2012-02-01

    A computationally efficient NARX-type neural network model is developed to characterise highly nonlinear frequency-dependent thermally sensitive hydraulic dampers for use in the virtual tuning of passive suspension systems with high-frequency loading. Three input variables are chosen to account for high-frequency kinematics and temperature variations arising from continuous vehicle operation over non-smooth surfaces such as stone-covered streets, rough or off-road conditions. Two additional input variables are chosen to represent tuneable valve parameters. To assist in the development of the NARX model, a highly accurate but computationally excessive physical damper model [originally proposed by S. Duym and K. Reybrouck, Physical characterization of non-linear shock absorber dynamics, Eur. J. Mech. Eng. M 43(4) (1998), pp. 181-188] is extended to allow for high-frequency input kinematics. Experimental verification of this extended version uses measured damper data obtained from an industrial damper test machine under near-isothermal conditions for fixed valve settings, with input kinematics corresponding to harmonic and random road profiles. The extended model is then used only for simulating data for training and testing the NARX model with specified temperature profiles and different valve parameters, both in isolation and within quarter-car vehicle simulations. A heat generation and dissipation model is also developed and experimentally verified for use within the simulations. Virtual tuning using the quarter-car simulation model then exploits the NARX damper to achieve a compromise between ride and handling under transient thermal conditions with harmonic and random road profiles. For quarter-car simulations, the paper shows that a single tuneable NARX damper makes virtual tuning computationally very attractive.

  19. Low Emission AMTEC Automotive Power System. Final report for Department of Energy Contract DE-FG02-94ER81696

    Energy Technology Data Exchange (ETDEWEB)

    Hunt, Thomas K.

    2001-04-17

    This program investigated the potential for Alkali Metal Thermal to Electric Converter (AMTEC) technology to be useful in automotive power system applications. AMTEC, a thermally regenerative electrochemical energy conversion system, converts heat into electricity from a heat source at 750 C to 850 C and a radiator at 200 C to 350 C. AMTEC uses external combustion with correspondingly low emission of NO{sub x} and hydrocarbons, and can tolerate essentially any hydrocarbon fuel. Efficiencies of 20% to 30% are projected to be feasible for systems of 25 kWe to 40 kWe peak output. The research program has shown that there are significant advantages to be achieved if AMTEC systems can be made cost effective for vehicle applications. Among these are (1) higher efficiency at part load than IC engines can yield, (2) omnifuel capability, and (3) low noise and low emission of pollutants. Demonstrated lifetimes already above 12,000 hours should be adequate for most vehicle applications. In major production, AMTEC costs are projected to reach $1/Watt, a value still too high for widespread automotive main power application. AMTEC's unique capabilities for low emissions, all-fuel operation, and insensitivity to ambient temperature, however, do make it a potential option for specialized vehicle applications needing these properties.

  20. 汽车电动门窗的嵌入式语音控制系统设计%Design of embedded automotive electric window speech control system

    Institute of Scientific and Technical Information of China (English)

    马玉林; 田香玉; 曲金玉

    2015-01-01

    On the basis of the introduction of the structure and principle of automotive lighting in‐dependent speech control system ,the template training and speech recognition algorithm based on the Hidden Markov Model (HMM ) were emphatically analyzed .The hardware and software of the embedded system were designed on the 16 bit Sunplus SPCE061A single‐chip .The experimen‐tal project of the speech control system was proposed and the results met the automotive window‐speech control requirements .%在介绍汽车电动门窗语音控制系统结构和原理的基础上,重点分析了基于隐马尔可夫模型(HMM)的模板训练和语音识别算法。选用凌阳SPCE061A的16位单片机进行了嵌入式系统的硬件和软件设计,并制定了本语音控制系统的实验方案。实验结果表明,该系统能够满足车窗语音控制的要求。

  1. DELPHI's Ring Imaging Cherenkov Chamber

    CERN Multimedia

    1989-01-01

    The hundreds of mirrors around this Ring Imaging Cherenkov Chamber reflect cones of light created by fast moving particles to a detector. The velocity of a particle can be measured by the size of the ring produced on the detector. DELPHI, which ran from 1989 to 2000 on the LEP accelerator, was primarily concerned with particle identification.

  2. Research and Application of Charge System in Dephi ADOX%Delphi ADOX在收银系统中的研究与应用

    Institute of Scientific and Technical Information of China (English)

    张国祥

    2008-01-01

    ADOX是由多个COM对象组成的对象模型,可以用来实现一系列以ADO无法单独实现的功能,以弥补BDE的不足,通过时Delphi ADOX的剖析与应用,实现了异地互联的信用卡收银系统.

  3. A cut-away diagram of the DELPHI experiment

    CERN Multimedia

    1996-01-01

    A diagram of the DELPHI end-cap and barrel. Detectors are used in layers to detect different particles produced by the collisions in the beam pipe at the vertex detector. Each detector makes many different measurements, which are read off to a system of computers for analysis.

  4. Exploiting Real-Time FPGA Based Adaptive Systems Technology for Real-Time Sensor Fusion in Next Generation Automotive Safety Systems

    CERN Document Server

    Chappell, Steve; Preston, Dan; Olmstead, Dave; Flint, Bob; Sullivan, Chris

    2011-01-01

    We present a system for the boresighting of sensors using inertial measurement devices as the basis for developing a range of dynamic real-time sensor fusion applications. The proof of concept utilizes a COTS FPGA platform for sensor fusion and real-time correction of a misaligned video sensor. We exploit a custom-designed 32-bit soft processor core and C-based design & synthesis for rapid, platform-neutral development. Kalman filter and sensor fusion techniques established in advanced aviation systems are applied to automotive vehicles with results exceeding typical industry requirements for sensor alignment. Results of the static and the dynamic tests demonstrate that using inexpensive accelerometers mounted on (or during assembly of) a sensor and an Inertial Measurement Unit (IMU) fixed to a vehicle can be used to compute the misalignment of the sensor to the IMU and thus vehicle. In some cases the model predications and test results exceeded the requirements by an order of magnitude with a 3-sigma or ...

  5. An Overview of NASA Automotive Component Reliability Studies

    Science.gov (United States)

    Sampson, Michael J.

    2016-01-01

    The results of NASAs studies into the appropriateness of using US Automotive electronic parts in NASA spaceflight systems will be presented. The first part of the presentation provides an overview of the United States Automotive Electronics Councils AECQ standardization program, the second part provides a summary of the results of NASAs procurement and testing experiences and other lessons learned along with preliminary test results.

  6. Green competitiveness research on Chinese automotive enterprises

    Directory of Open Access Journals (Sweden)

    Yuanhui Li

    2014-05-01

    Full Text Available Purpose: More and more executives of automobileindustry in China start to recognize the concept of green competitiveness recently. However, relatively less research attention has been devoted to the consideration of measurement. This paper aims to find empirical approach to quantify green competitiveness for automotive enterprises. The connotation of green competitiveness is explored and one suite of evaluation index system has been proposed with four dimensions including environmental, resource, capability and knowledge.Design/methodology/approach: By introducing the factor analysis method, green competitiveness has been measured through an empirical analysis of 24 automotive enterprises within China.Findings: The results indicate that those elements, such as enterprise resource possession and utilization; environment, responsibility and knowledge; profitability; management efficiency, have significant effect on the green competitiveness for automotive enterprises. The further analysis also unveils the advantages and disadvantages of green competitiveness for each company and the direction for improvement.Research limitations/implications: Guide regulators and managers of automobile industry to take some measures to enhance their green competitive advantage.Practical implications: Provide practical methods to measure green competitiveness for automotive enterprises.Originality/value: This paper proposes an evaluation index system of green competitiveness for automotive enterprises. The suggestions of our research will be beneficial to enterprise executives and industry regulators.

  7. Furnace Brazing Parameters Optimized by Taguchi Method and Corrosion Behavior of Tube-Fin System of Automotive Condensers

    Science.gov (United States)

    Guía-Tello, J. C.; Pech-Canul, M. A.; Trujillo-Vázquez, E.; Pech-Canul, M. I.

    2017-06-01

    Controlled atmosphere brazing has a widespread industrial use in the production of aluminum automotive heat exchangers. Good-quality joints between the components depend on the initial condition of materials as well as on the brazing process parameters. In this work, the Taguchi method was used to optimize the brazing parameters with respect to corrosion performance for tube-fin mini-assemblies of an automotive condenser. The experimental design consisted of five factors (micro-channel tube type, flux type, peak temperature, heating rate and dwell time), with two levels each. The corrosion behavior in acidified seawater solution pH 2.8 was evaluated through potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) measurements. Scanning electron microscope (SEM) and energy-dispersive x-ray spectroscopy (EDS) were used to analyze the microstructural features in the joint zone. The results showed that the parameters that most significantly affect the corrosion rate are the type of flux and the peak temperature. The optimal conditions were: micro-channel tube with 4.2 g/m2 of zinc coating, standard flux, 610 °C peak temperature, 5 °C/min heating rate and 4 min dwell time. The corrosion current density value of the confirmation experiment is in excellent agreement with the predicted value. The electrochemical characterization for selected samples gave indication that the brazing conditions had a more significant effect on the kinetics of the hydrogen evolution reaction than on the kinetics of the metal dissolution reaction.

  8. High integrity automotive castings

    Energy Technology Data Exchange (ETDEWEB)

    Weiss, D. [Eck Industries Inc., St. Manitowoc, WI (United States)

    2007-07-01

    This paper described the High Integrity Magnesium Automotive Casting (HI-MAC) program, which was developed to ensure the widespread adoption of magnesium in structural castings. The program will encourage the use of low pressure permanent molds, squeeze casting, and electromagnetic pumping of magnesium into dies. The HI-MAC program is currently investigating new heat treatment methods, and is in the process of creating improved fluid flow and solidification modelling to produce high volume automotive components. In order to address key technology barriers, the program has been divided into 8 tasks: (1) squeeze casting process development; (2) low pressure casting technology; (3) thermal treatment; (4) microstructure control; (5) computer modelling and properties; (6) controlled molten metal transfer and filling; (7) emerging casting technologies; and (8) technology transfer throughout the automotive value chain. Technical challenges were outlined for each of the tasks. 1 ref., 3 tabs., 5 figs.

  9. Complelely Distributed Automotive Electrical System and Its Design%汽车电器系统结构的全分布式设计

    Institute of Scientific and Technical Information of China (English)

    张新丰; 杨殿阁; 连小珉

    2012-01-01

    The distribution index was proposed and defined, and an analysis was made of the developing trends of automotive electrical system architecture. A kind of completely distributed automotive electronic system architecture was introduced. The new architecture concept featured a set of hierarchy backbone and local digital signal network, power supply network together with a central coordination controller. The electrical/electronic devices connected by backbone/local networks were supplied with the distributed power supply network. The wires set and connector types of harness in completely distributed automotive electronic system were standardized and invariant. The system achieved good configurability, extendibility and reliability. System demonstration carried out on a prototype proved to be feasible and economical.%通过定义分布指数分析了汽车电器系统结构演变及发展方向,并提出了一种全分布式的汽车电器系统结构.该系统是一个以骨干网和局域网二级网络为数字信号网络、以电源网络为系统供电并以中央协调器作整车协调控制的体系结构,通过骨干网和局域网实现电器信息共享及控制指令传输,并以分布式电力网实现整车弱电系统和强电系统的分离供电,以标准化电器接口实现了整车不变线束,从而构成了一个智能型、标准化、一致性很强、扩展性良好、可靠性高的整车电器系统.最后开发了实验样车,证明了全分布式控制系统的可行性和经济性.

  10. Status of new energy automotive air conditioning system and development trend%新能源汽车空调系统的现状及发展趋势

    Institute of Scientific and Technical Information of China (English)

    曹汝恒; 刘松; 张书义; 曹建明

    2016-01-01

    Based on the rapid development of new energy vehicles, introducting the classification of new energy vehicles, summarizing the functions and requirements of automotive air conditioning, as well as the classification and development trend of new energy automotive air conditioning systems.%基于新能源汽车的快速发展情况,介绍新能源汽车的分类,归纳汽车空调的功能和要求,以及新能源汽车空调系统的分类及发展趋势。

  11. Advanced casting technologies for lightweight automotive applications

    Directory of Open Access Journals (Sweden)

    Alan A. Luo

    2010-11-01

    Full Text Available This paper provides an overview of alloy and process developments in aluminum and magnesium castings for lightweight automotive applications. Wear-resistant aluminum alloys, creep-resistant and high strength/ductility magnesium alloys have been developed for automotive applications. On the process front, vacuum-assisted die casting and high vacuum die casting technologies have been developed for high-integrity body and chassis applications. Thin-wall and hollow casting components are being produced by low-pressure die casting processes for structural applications. Overcasting technology is gaining traction and has enabled mixed material designs for automotive sub-systems such as engine cradles and instrument panel beams. Simulation tools developed to predict the interfacial interactions of the dissimilar components and the structural integrity of the overcast systems are being validated in the casting trials.

  12. Automotive Radar Sensors in Silicon Technologies

    CERN Document Server

    Jain, Vipul

    2013-01-01

    This book presents architectures and design techniques for mm-wave automotive radar transceivers. Several fully-integrated transceivers and receivers operating at 22-29 GHz and 77-81 GHz are demonstrated in both CMOS and SiGe BiCMOS technologies. Excellent performance is achieved indicating the suitability of silicon technologies for automotive radar sensors.  This book bridges an existing gap between information available on dependable system/architecture design and circuit design.  It provides the background of the field and detailed description of recent research and development of silicon-based radar sensors.  System-level requirements and circuit topologies for radar transceivers are described in detail. Holistic approaches towards designing radar sensors are validated with several examples of highly-integrated radar ICs in silicon technologies. Circuit techniques to design millimeter-wave circuits in silicon technologies are discussed in depth.  Describes concepts and fundamentals of automotive rada...

  13. Automotive component failures

    CSIR Research Space (South Africa)

    Heyes, AM

    1998-06-01

    Full Text Available be expected[ 023 A[ M[ HEYES Fig[ 6[ Low magni_cation fractograph showing the seam defect "S#\\ fatigue area "F# and the brittle fracture area "B#[ Fig[ 7[ Fracture surface marked F in Fig[ 6\\ typical of a fatigue fracture surface in a high strength steel... Ltd[ All rights reserved[ Keywords] Accident investigation\\ automotive failures\\ decarburization\\ fatigue\\ weld fatigue[ 0[ INTRODUCTION Failure of automotive components is an occurrence which a}ects the life of almost every person at one stage...

  14. Application of CAN bus in automotive body control system%CAN总线的汽车车身控制系统的应用研究

    Institute of Scientific and Technical Information of China (English)

    宁轩

    2016-01-01

    This paper mainly through the simple introduction of the CAN bus, from auto body control system overall design and the design of the hardware and the software aspects carries on the elaboration to simplify the wiring harness,reduce costs,can bus in automotive body control system has been more widely used.%随着汽车电子技术的不断发展,CAN总线被广泛应用于汽车车身控制系统设计.本文主要通过CAN总线的简单介绍,从汽车车身控制系统的总体设计以及硬件、软件设计方面进行阐述,达到简化线束、降低成本的要求,使CAN总线在汽车车身控制系统中得到更广泛使用.

  15. The Design of Medical Instrumentation Retrieval System Based on Delphi%基于Delphi的医疗器械商品检索系统设计

    Institute of Scientific and Technical Information of China (English)

    张学龙; 俞凯君

    2002-01-01

    报道了采用Delphi 6.0编程工具研究并设计的医疗器械商品检索系统,介绍了系统开发的环境特征、数据库应用程序开发步骤及开发过程,包括创建主界面、数据库及编程等.最后分析了该系统存在的不足及改进措施.

  16. 汽车燃油加热器数据自动采集系统%Automatic Data Acquisition System for Automotive Fuel Oil Heater

    Institute of Scientific and Technical Information of China (English)

    张铁壁; 孙士尉; 夏国明; 马晓辉; 张学军

    2013-01-01

    为了解决目前汽车燃油加热器采集系统存在的问题,研制了一种基于RS-485总线的汽车燃油加热器数据采集系统.该系统采用触摸屏输入员工的信息、产品编号以及进行各项参数的设定;随后,采集模块将加热器的各项数据输入到PLC,并采用最小二乘法对温度测量数据进行修正.运行效果表明,系统操作简单、数据准确、适用性强,具有较高的推广价值.%In order to solve the problem that existing in current data acquisition system for automotive fuel oil heater,the data acquisition system based on RS-485 for automotive fuel oil heater has been researched and developed.In this system,the personnel information,product serial number and various parameters are input and setup by using touch screen ; all the data of the heater are input to PLC through acquisition module later; and the measurement data of temperature are corrected with the least squares method.The operation results prove that the system offers easy operation,accurate data and good applicability; it possesses higher promoting value.

  17. Potentials of an installation test applied to automotive electronic systems; Potentiale der Verbaupruefung elektronischer Systeme im Kraftfahrzeug

    Energy Technology Data Exchange (ETDEWEB)

    Reuss, H.-C.; Grimm, M. [Stuttgart Univ. (Germany). IVK; Maeurer, H.J.; Sauer, J. [Dekra Automobil GmbH, Stuttgart (Germany)

    2005-07-01

    By the rising amount of electronic systems the error rate is increasing in automobiles. In particular the missing maintenance, unprofessional service and manipulation contributes to the insecurity of these electronic systems. By introducing the Steer By Wire and Brake By Wire Systems, the importance of failure free systems will be even greater. Due to this motor vehicles taking part in the road traffic can eventually be in an insecure state. To avoid this, methods are necessary which could doubtlessly identify the electronic system states of the vehicle. (orig.)

  18. Study on Application of Electronic System in Detection and Maintenance ofAutomotive Engine%电子系统在汽车发动机的检测和维修上的应用研究

    Institute of Scientific and Technical Information of China (English)

    王建军

    2014-01-01

    With the continuous development of modern industry, the electronic technologies in automotive applications become increasingly popular. among them, that ws used in automotive engine testing and maintenance has great advantages. This paper describes the system of electronic control fuel injection system and electronic control ignition system of automotive engine. On this basis, this paper studies the fault diagnosis and repair of the electronic system of automotive engine by use of the experimental method to study.%随着现代工业的不断发展,电子技术在汽车上的应用日益突出。其中,应用于汽车发动机的检测与维修的电子系统具有极大的优势。文章系统的阐述了汽车发动机的电子控制燃油喷射系统和电子控制点火系统,在此基础上,通过实验的方法研究了汽车发动机电子系统的故障诊断与维修。

  19. Bringing Excellence to Automotive

    Science.gov (United States)

    Večeřa, Pavel; Paulová, Iveta

    2012-12-01

    Market situation and development in recent years shows, that organization's ability to meet customer requirements is not enough. Successful organizations are able to exceed the expectations of all stakeholders. They are building their excellence systematically. Our contribution basically how the excellence in automotive is created using EFQM Excellence Model in Total Quality Management.

  20. Personal Achievement Mathematics: Automotive.

    Science.gov (United States)

    Baenziger, Betty

    Utilizing word problems relevant to automotive mechanics, this workbook presents a concept-oriented approach to competency development in 13 areas of basic mathematics: (1) the expression of numbers as figures and words; (2) the addition, subtraction, multiplication, and division of whole numbers, fractions, and decimals; (3) scientific notation;…

  1. Ecosilient Index to assess the greenness and resilience of the upstream automotive supply chain

    DEFF Research Database (Denmark)

    Azevedo, S.G.; Govindan, Kannan; Carvalho, H.;

    2013-01-01

    This paper suggests an Ecosilient Index to assess the greenness and resilience of automotive companies and the corresponding supply chain. An integrated assessment model is proposed based on green and resilient practices. The Delphi technique is used to obtain the weights of the supply chain...... the applicability of this index in a real-world supply chain and highlight its managerial implications. The results show that the resilient paradigm is considered to be the one that contributes more to the competitiveness of the automotive supply chain. The green practice identified as the most important...... to the greenness of this industry is to reduce energy consumption. The significant contributions to resilience are sourcing strategies that allow switching of suppliers, flexible supply base/flexible sourcing and creating total supply chain visibility. The proposed index was developed in the context of automotive...

  2. System design and analysis of the trans-critical carbon-dioxide automotive air-conditioning system

    Institute of Scientific and Technical Information of China (English)

    穆景阳; 陈江平; 陈芝久

    2003-01-01

    As an environmentally harmless and feasible alternate refrigerant, CO2 has attracted worldwide attention, especially in the area of automobile air-conditioning (AAC). The thermal property of CO2 and its trans-critical refrigeration cycle is very different from that of the traditional CFC or HCFC system. The detailed process of CO2 system thermal cycle design and optimization is described in this paper. System prototype and performance test bench were developed to analyze the performance of the CO2 AAC system.

  3. System design and analysis of the trans-critical carbon-dioxide automotive air-conditioning system

    Institute of Scientific and Technical Information of China (English)

    穆景阳; 陈江平; 陈芝久

    2003-01-01

    As an environmentally harmless and feasible alternate refrigerant, CO2 has attracted worldwide attention, especially in the area of automobile air-conditioning (AAC). The thermal property of CO2 and its trans-eritical refrigeration cycle is very different from that of the traditional CFC or HCFC system. The detailed process of CO2 system thermal cycle design and optimization is described in this paper. System prototype and performance test bench were developed to analyze the performance of the CO2 AAC system.

  4. Development of an Integrated Test Bench for Automotive Occupant Restraint System%汽车乘员约束系统综合试验台的研制

    Institute of Scientific and Technical Information of China (English)

    白中浩; 徐正; 颜强; 张前斌

    2013-01-01

    Based on regulations both at home and abroad for the strength test of automotive seats and safety belt anchorage, an integrated test bench for occupant restraint system is developed, with which the tests of seat stiffness , safety belt anchorage strength and the performance of head-rest can be conducted. A FE model of the master frame of test bench is built and its strength is analyzed with software ANSYS. The control system of test bench is developed by using virtual instrument technology, and the strength test of seats assembly and safety belt anchorage are performed on the test bench. The results demonstrate that the test bed developed can meet the requirements of relevant test regulations and can be used for the research and development of automotive occupant restraint system.%基于国内外汽车座椅和安全带固定点强度试验法规,开发了可同时进行座椅刚度、安全带固定点强度测试和头枕性能等测试的乘员约束系统综合试验台.采用ANSYS软件建立了试验台主台架的有限元模型对主台架进行强度分析;应用虚拟仪器技术开发了该试验台的控制系统,并利用该试验台进行了座椅总成静强度试验和安全带固定点强度试验.结果表明,该试验台能满足相关试验法规的要求,可用于对乘员约束系统的研究和开发.

  5. Nanotechnology impact on the automotive industry.

    Science.gov (United States)

    Wong, Kaufui V; Paddon, Patrick A

    2014-01-01

    Nanotechnology has been implemented widely in the automotive industry. This technology is particularly useful in coatings, fabrics, structural materials, fluids, lubricants, tires, and preliminary applications in smart glass/windows and video display systems. A special sub-class of improved materials, alternative energy, has also seen a boost from advances in nanotechnology, and continues to be an active research area. A correlation exists in the automotive industry between the areas with increased nanotechnology incorporation and those with increased profit margins via improvements and customer demands.

  6. DelPhi: a comprehensive suite for DelPhi software and associated resources

    Directory of Open Access Journals (Sweden)

    Li Lin

    2012-05-01

    Full Text Available Abstract Background Accurate modeling of electrostatic potential and corresponding energies becomes increasingly important for understanding properties of biological macromolecules and their complexes. However, this is not an easy task due to the irregular shape of biological entities and the presence of water and mobile ions. Results Here we report a comprehensive suite for the well-known Poisson-Boltzmann solver, DelPhi, enriched with additional features to facilitate DelPhi usage. The suite allows for easy download of both DelPhi executable files and source code along with a makefile for local installations. The users can obtain the DelPhi manual and parameter files required for the corresponding investigation. Non-experienced researchers can download examples containing all necessary data to carry out DelPhi runs on a set of selected examples illustrating various DelPhi features and demonstrating DelPhi’s accuracy against analytical solutions. Conclusions DelPhi suite offers not only the DelPhi executable and sources files, examples and parameter files, but also provides links to third party developed resources either utilizing DelPhi or providing plugins for DelPhi. In addition, the users and developers are offered a forum to share ideas, resolve issues, report bugs and seek help with respect to the DelPhi package. The resource is available free of charge for academic users from URL: http://compbio.clemson.edu/DelPhi.php.

  7. IMPLEMENTATION OF THE DELPHI TECHNIQUE IN FINANCE

    Directory of Open Access Journals (Sweden)

    Marcin Kozak

    2015-05-01

    Full Text Available In the rapidly developing world, forecasting is very important for numerous aspects of our lives,the finance realm not being an exception. Various qualitative and quantitative methods are used to predict what is ahead. One of them is the Delphi method, an anonymous, structured discussion among experts on the forecasted topic. Developed over 60 years ago, it is one of the most effective qualitative forecasting and decision-making techniques. That said, literature review suggests Delphi’s advantages have not been sufficiently utilized in financial research. This paper is an introduction to Delphi with a focus on the method’s application possibilities in finance and related disciplines. For this purpose, we performed a literature review and presented a step-by-step guide for implementing the Delphi technique, describing a structure of the Delphi process, major principles of Delphi, experts’ selection, Delphi types, ways of establishing consensus, validity of the method among others. Finally, we focused on implementing Delphi in finance and offered example topics that could be studied with Delphi.

  8. DELPHI Barrel Ring Imaging Cherenkov Detector

    CERN Multimedia

    DELPHI was one of the four experiments installed at the LEP particle accelerator from 1989 - 2000. This is a piece of the Barrel Ring Imaging Cherenkov detector which was used to identify particles in DELPHI.It measured the Cherenkov light emitted when particles travelled faster than the speed of light through the material of the detector. The photo shows the complete Cherenkov detector.

  9. Terminating Sequential Delphi Survey Data Collection

    Science.gov (United States)

    Kalaian, Sema A.; Kasim, Rafa M.

    2012-01-01

    The Delphi survey technique is an iterative mail or electronic (e-mail or web-based) survey method used to obtain agreement or consensus among a group of experts in a specific field on a particular issue through a well-designed and systematic multiple sequential rounds of survey administrations. Each of the multiple rounds of the Delphi survey…

  10. The Delphi Method And Decision Making

    OpenAIRE

    Villagrasa, Raimundo

    2015-01-01

    Se describe, analisa y critica el método Delphi, desarrollado para encontrar una opinión grupal para tomar decisiones de manera eficiente en una empresa. The article describes, analyzes and criticizes the Delphi method, developed to find a group opinion to make decisions in an efficient way in a firm.

  11. 汽车发动机冷却系统的腐蚀与防护%CORROSION AND PROTECTION OF COOLING SYSTEM OF AUTOMOTIVE ENGINE

    Institute of Scientific and Technical Information of China (English)

    刘丽明; 王晓波; 王萍; 张焕仁

    2001-01-01

    参照日本防冻液的金属腐蚀试验方法JIS-K-2234,对各种不同的复合型缓蚀剂配制的防冻液进行了金属腐蚀试验测试,并对测试结果进行了分析讨论,最后确定了对铸铁、钢、铜、铸铝、锡都具有较好缓蚀作用的复合型缓蚀剂的科学配制方法,利用美国ASTM方法对防冻液进行了性能测试。配制的防冻液可以有效地延长汽车发动机冷却系统的使用寿命,使汽车达到高性能化。%By reference to metal corrosion test methods JIS -K-2234 some,anti-freeze fluids which were made up of various compounded-typ e inhibitor were tested for metal corrosion.The results were discussed,the scientific methods of making up compounded-type inhibitor which can play better role of inhibitor for ordinary iron,steel,copper,ordinary aluminium、tin wer e determined at last.By the methods of ASTM the performance of anti-freeze flui d has been tested.The anti-freeze fluids which was so formed can prolong effe cti vly service life of cooling system of automotive engine,and can make automotive having high property.

  12. Delphi Foresight Analysis

    NARCIS (Netherlands)

    Coles, D.G.; Frewer, L.J.

    2010-01-01

    Summary The INNOVA-P2 project seeks to develop a plan for amending the current Intellectual Property Rights (IPR) regime for rewarding pharmaceutical innovations. Amendments to the current system are required if reasonably priced health care is to be delivered to patients in all areas of the world..

  13. Delphi Foresight Analysis

    NARCIS (Netherlands)

    Coles, D.G.; Frewer, L.J.

    2010-01-01

    Summary The INNOVA-P2 project seeks to develop a plan for amending the current Intellectual Property Rights (IPR) regime for rewarding pharmaceutical innovations. Amendments to the current system are required if reasonably priced health care is to be delivered to patients in all areas of the world..

  14. Rotordynamics of automotive turbochargers

    CERN Document Server

    Nguyen-Schäfer, Hung

    2015-01-01

    Rotordynamics of automotive turbochargers is dealt with in this book encompassing the widely working field of small turbomachines under real operating conditions at the very high rotor speeds up to 300000 rpm. The broadly interdisciplinary field of turbocharger rotordynamics involves 1) Thermodynamics and Turbo-Matching of Turbochargers 2) Dynamics of Turbomachinery 3) Stability Analysis of Linear Rotordynamics with the Eigenvalue Theory 4) Stability Analysis of Nonlinear Rotordynamics with the Bifurcation Theory 5) Bearing Dynamics of the Oil Film using the Two-Phase Reynolds Equation 6) Computation of Nonlinear Responses of a Turbocharger Rotor 7) Aero and Vibroacoustics of Turbochargers 8) Shop and Trim Balancing at Two Planes of the Rotor 9) Tribology of the Bearing Surface Roughness 10) Design of Turbocharger Platforms using the Similarity Laws The rotor response of an automotive turbocharger at high rotor speeds is studied analytically, computationally, and experimentally. Due to the nonlinear character...

  15. Current Automotive Holometry Studies

    Science.gov (United States)

    Marchi, Mitchell M.; Snyder, D. S.

    1990-04-01

    Holometry studies of automotive body and powertrain components have become a very useful high resolution test methodology to knowledgeable Ford engineering personnel. Current examples of studies that represent the static or dynamic operational conditions of the automotive test component are presented. Continuous wave laser holometry, computer aided holometry (CAH) and pulsed laser holometry were the holometric techniques used to study the following subjects: (1) body in prime (BIP) vibration modes, (2) transmission flexplate stud-torque converter deformation due to engine torque pulses, (3) engine cylinder head and camshaft support structure deformation due to cylinder pressure and (4) engine connecting rod/cap lift-off. Static and dynamic component loading and laboratory techniques required to produce usable and valid test results are discussed along with possible conclusions for the engineering concerns.

  16. Evaluation of a Delphi technique based expert judgement method for LCA valuation - DELPHI II

    Energy Technology Data Exchange (ETDEWEB)

    Virtanen, Y.; Torkkeli, S. [VTT Chemical Technology, Espoo (Finland). Environmental Technology; Wilson, B. [Landbank Environmental Research and Consulting, London (United Kingdom)

    1999-07-01

    Because of the complexity and trade-offs between different points of the life cycles of the analysed systems, a method which measures the environmental damage caused by each intervention is needed in order to make a choice between the products. However, there is no commonly agreed methodology for this particular purpose. In most of the methods the valuation is implicitly or explicitly based on economic criteria. For various reasons, however, economically obtained criteria do not necessarily reflect ecological arguments correctly. Thus, there is a need for new, ecologically based valuation methods. One such approach is the expert judgement method, based on the Delphi technique, which rejects the economic basis in favour of the judgements of a group of environmental experts. However, it is not self evident that the expert judgement based environmental rating of interventions will be essentially more correct and certain than other methods. In this study the method was evaluated at different points of the procedure in order to obtain a picture of the quality of the indexes produced. The evaluation was based on an actual Delphi study made in 1995-1996 in Finland, Sweden and Norway. The main questions addressed were the significance of the results and the operational quality of the Delphi procedure. The results obtained by applying the expert method indexes were also compared with the results obtained with other valuation methods for the background life cycle inventory of the case study. Additional material included feedback data from panellists of the case study, collected with a questionnaire. The questionnaire data was analysed to identify major dimensions in the criteria for evaluating interventions and correlation of the final indexes of the Delphi I study with these dimensions. The rest of the questionnaire material was used to document panellists' opinions and experiences of the Delphi process, familiarity with the environmental impacts of various

  17. Automotive Battery Modelling and Management

    Directory of Open Access Journals (Sweden)

    N. M. Hammad

    2014-06-01

    Full Text Available The estimation of vehicle battery performance is typically addressed by testing the battery under specific operation conditions by using a model to represent the test results. Approaches for representing test results range from simple statistical models to neural networks to complex, physics-based models. Basing the model on test data could be problematical when testing becomes impractical with many years life time tests. So, real time estimation of battery performance, an important problem in automotive applications, falls into this area. In vehicles it is important to know the state of charge of the batteries in order to prevent vehicle stranding and to ensure that the full range of the vehicle operation is exploited. In this paper, several battery models have studied including analytical, electrical circuits, stochastic and electro- chemical models. Valve Regulated Lead Acid “VRLA” battery has been modelled using electric circuit technique. This model is considered in the proposed Battery Monitoring System “BMS”. The proposed BMS includes data acquisition, data analysis and prediction of battery performance under a hypothetical future loads. Based on these criteria, a microprocessor based BMS prototype had been built and tested in automotive Lab,. The tests show promising results that can be used in industrial applications

  18. Development process of automotive microsensors

    Science.gov (United States)

    Tang, William C.

    1995-05-01

    The phased product development approach can be applied advantageously to develop and manufacture automotive microsensors. The phased approach involves a multifunctional team from innovation to development to eventual production and maintenance phases. The key advantage of this approach is the shortened development cycle and fast product introduction, while minimizing waste of resources and lowering risk of product failure. When applied to the product cycles of automotive sensors based on micromachining technology, this approach elucidates several critical considerations. In particular, since industrial application of micromachining technology is still at the infant stage, standards and design rules are not firmly established. Therefore, several important activities must be initiated simultaneously from the start of the innovation phase, which proves to be crucial to the prudent decision of technology alternatives and sensor system configuration. The use of a multifunctional team, as mandated in the phased approach, enables coherent development and optimization of the sense element, the fabrication technology, the packaging approach, the interface circuit configuration, and design features that allow efficient test and assembly flow. Also, with intermediate milestones within each phase, risk assessment and necessary midcourse adjustment to technology trade- offs can be both timely and accurate. Accelerometers, one of the most developed micromachined sensors, serve as representative examples that illustrate how the phased approach can benefits the commercialization of the newly established and rapidly expanding field of micromechanics.

  19. Development of A Web-Based Information System for Material Inventory Control: The Case of An Automotive Company

    Directory of Open Access Journals (Sweden)

    Renjana Setyoandara Wibisono

    2016-10-01

    Full Text Available Inventory control is controlling the materials movement to fulfill the requirements. The materials can from the direct and indirect materials. the indirect materials are the materials that cannot be calculated according to the bill of materials. Indirect materials need safety stocks, so the requirements can always be fulfilled, means it need the control and monitoring of their levels. To control the movement of the materials, each department have roles to control and information that need to be shared. PT XYZ is an automotive assembler company, the company need a tool to control the indirect materials inbound and outbound and control its stock. This research is to have the tool that will be a web-based program because to share the information throughout the department of planning, production, and logistics. In developing and implementing the program itself, the RUP methodology is used to guide in doing this research with having four phases and activities that support the research. The result is the program itself have been successful to fulfilled the user requirements. The program shows the real time information for the levels of the materials and also the inbound and outbound of the materials for the user to monitor its levels.

  20. Building a Privacy, Ethics, and Data Access Framework for Real World Computerised Medical Record System Data: A Delphi Study. Contribution of the Primary Health Care Informatics Working Group.

    Science.gov (United States)

    Liyanage, H; Liaw, S-T; Di Iorio, C T; Kuziemsky, C; Schreiber, R; Terry, A L; de Lusignan, S

    2016-11-10

    Privacy, ethics, and data access issues pose significant challenges to the timely delivery of health research. Whilst the fundamental drivers to ensure that data access is ethical and satisfies privacy requirements are similar, they are often dealt with in varying ways by different approval processes. To achieve a consensus across an international panel of health care and informatics professionals on an integrated set of privacy and ethics principles that could accelerate health data access in data-driven health research projects. A three-round consensus development process was used. In round one, we developed a baseline framework for privacy, ethics, and data access based on a review of existing literature in the health, informatics, and policy domains. This was further developed using a two-round Delphi consensus building process involving 20 experts who were members of the International Medical Informatics Association (IMIA) and European Federation of Medical Informatics (EFMI) Primary Health Care Informatics Working Groups. To achieve consensus we required an extended Delphi process. The first round involved feedback on and development of the baseline framework. This consisted of four components: (1) ethical principles, (2) ethical guidance questions, (3) privacy and data access principles, and (4) privacy and data access guidance questions. Round two developed consensus in key areas of the revised framework, allowing the building of a newly, more detailed and descriptive framework. In the final round panel experts expressed their opinions, either as agreements or disagreements, on the ethics and privacy statements of the framework finding some of the previous round disagreements to be surprising in view of established ethical principles. This study develops a framework for an integrated approach to ethics and privacy. Privacy breech risk should not be considered in isolation but instead balanced by potential ethical benefit.

  1. Delphi electric cam phasing as an enabler for CO{sub 2} reduction; Der elektrisch angetriebene Nockenwellenversteller von Delphi

    Energy Technology Data Exchange (ETDEWEB)

    Jacque, Etienne; Mafrica, Sebastien; Stoltz-Douchet, Sebastien [Delphi Powertrain Systems, Bascharage (Luxembourg); David, Pascal

    2013-02-01

    The electric variable cam phaser (EVCP) from Delphi allows fast, wide and precise phasing independent of engine oil pressure. This allows additional degrees of freedom for the introduction of new combustion systems for gasoline, diesel and HCCI engines with very low consumption of electrical energy. The system also meets the new requirements of start stop and hybrid applications, in particular when phasing is required at very low engine speeds. (orig.)

  2. 我国新能源汽车产业创新体系的建设与发展%Introduction to the Construction and Development of New Energy Automotive Industry Innovation System

    Institute of Scientific and Technical Information of China (English)

    李亭

    2016-01-01

    The development of Chinaˊs new energy vehicles is relatively fast,the construction and development of new energy automotive industry innovation system is of great significanceto the guarantee of the progress in the new energy automotive technology.This article introduces the background of innovation system in new energy automotive industry in our country,and elaborates the content of the system.New energy automotive industry innovation system includes the target system,policy,system, technology system,environmental and social service system.The new energy automobile industry development in our country needs to promote exchanges and cooperation amongevery element to achieve further promotion of new energy system.%我国新能源汽车发展较为迅速,新能源汽车产业创新体系的建设和发展对于保证新能源汽车技术进步具有重要意义。文章介绍了我国新能源汽车产业创新体系背景,并对体系内容进行详细阐述。新能源汽车产业创新体系包括目标体系、政策体系、技术体系、环境与社会化服务体系,我国新能源汽车产业发展需要促进各组成要素交流与合作,促进新能源体系的进一步完善。

  3. Meeting the Embedded Design Needs of Automotive Applications

    CERN Document Server

    Lyons, Wayne

    2011-01-01

    The importance of embedded systems in driving innovation in automotive applications continues to grow. Understanding the specific needs of developers targeting this market is also helping to drive innovation in RISC core design. This paper describes how a RISC instruction set architecture has evolved to better meet those needs, and the key implementation features in two very different RISC cores are used to demonstrate the challenges of designing for real-time automotive systems.

  4. Automotive Chassis; Automotive Mechanics-Basic: 9043.02.

    Science.gov (United States)

    Dade County Public Schools, Miami, FL.

    This automotive chassis course is designed to familiarize the beginning student of the history and development of the automobile with basic concepts common to the automobile industry, and general information that is required for successful advancement in the automotive mechanics field. It is one quinmester in a series of quinmester outlines…

  5. 汽车发动机冷却系统设计及稳定性分析与研究%Design and Stability Analysis of Automotive Engine Cooling System

    Institute of Scientific and Technical Information of China (English)

    姜成春

    2014-01-01

    Automotive engine cooling system is an integral part of the structure of the car is very important, the paper automobile engine cooling system design and stability of the in-depth research and analysis, specific description of the characteristics and working principle of automotive engine cooling system.%汽车发动机冷却系统是汽车构造中十分重要的组成部分,本文对汽车发动机冷却系统设计及稳定性进行深入的研究分析,具体介绍了汽车发动机冷却系统的特点及工作原理。

  6. 汽车EPB系统控制原理研究%Researches on Control Principles of Automotive Electric Parking Brake EPB System

    Institute of Scientific and Technical Information of China (English)

    刘峰

    2016-01-01

    汽车电子技术的不断进步,令驻车制动系统即手制动系统从过去机/液式的,逐渐变成电子式的。电子驻车制动可在行车前自动释放或在熄火后自动拉紧,省去了忘记解除驻车制动或“坡起”溜车等情况的困扰与风险;由于电子驻车制动系统即EPB系统的结构较为复杂,需要对其控制原理进行分析研究,本文主要包括EPB的组成及工作原理等。%With the automobile’s and electrical technology constantly development, the parking brake system is changing from the primary mechanical, hydraulic into electrical. Electric parking brake (EPB) system is able to release it before ignoring or strain it after stopping the engine automatically, and cuts the dififculties and dangerous rates of forgetting to be released or the slide on the slope; Because of the automotive EPB frame is so complex, the electrical brake system needs to analysis. This thesis is mainly contains the EPB structures and working principles.

  7. Reliability in automotive ethernet networks

    DEFF Research Database (Denmark)

    Soares, Fabio L.; Campelo, Divanilson R.; Yan, Ying;

    2015-01-01

    This paper provides an overview of in-vehicle communication networks and addresses the challenges of providing reliability in automotive Ethernet in particular.......This paper provides an overview of in-vehicle communication networks and addresses the challenges of providing reliability in automotive Ethernet in particular....

  8. Ultracapacitors for automotive applications

    Science.gov (United States)

    Ashtiani, Cyrus; Wright, Randy; Hunt, Gary

    In response to a growing consensus in the auto industry that ultracapacitors can potentially play a key role in the modern vehicle power distribution network, a task force was created at the United States Advanced Battery Consortium (USABC) to tackle issues facing the fledging industry. The task force embarked on first developing and establishing standards for performance and abuse tolerance of ultracapacitors in collaboration with the U.S. Department of Energy and National Labs. Subsequently, potential applications in the automotive industry were identified and a consensus requirement specification was drawn as a development guide for the industry.

  9. Search for technicolor with DELPHI

    CERN Document Server

    Abdallah, J.; Adam, W.; Adzic, P.; Albrecht, Z.; Alderweireld, T.; Alemany-Fernandez, R.; Allport, P.P.; Almehed, S.; Almendinger, T.; Amaldi, U.; Amapane, N.; Amato, S.; Anashkin, E.; Andreazza, A.; Andringa, S.; Anjos, N.; Antilogus, P.; Apel, W.D.; Arnoud, Y.; Ask, S.; Asman, B.; Augustin, J.E.; Augustinus, A.; Baillon, P.; Ballestrero, A.; Bambade, P.; Barbier, R.; Bardin, D.; Barker, G.J.; Baroncelli, A.; Baubillier, M.; Becks, K.H.; Begalli, M.; Behrmann, A.; Bellunato, T.; Benekos, N.; Benvenuti, A.; Berat, C.; Berntzon, L.; Bertrand, D.; Besancon, M.; Besson, N.; Bloch, D.; Blom, M.; Boyko, I.; Bonesini, M.; Boonekamp, M.; Booth, P.S.L.; Borisov, G.; Botner, O.; Bouquet, B.; Bowcock, T.J.V.; Bracko, M.; Brenner, R.; Brodet, E.; Brodzicka, J.; Bruckman, P.; Brunet, J.M.; Bugge, L.; Buschmann, P.; Calvi, M.; Camporesi, T.; Canale, V.; Carena, F.; Carimalo, C.; Castro, Nuno Filipe; Cavallo, F.; Chapkin, M.; Charpentier, P.; Checchia, P.; Chierici, R.; Shlyapnikov, P.; Chung, S.U.; Cieslik, K.; Collins, P.; Contri, R.; Cosme, G.; Cossutti, F.; Costa, M.J.; Crawley, H.B.; Crennell, D.; Cuevas, J.; D'Hondt, J.; Dalmau, J.; da Silva, T.; Da Silva, W.; Della Ricca, G.; De Angelis, A.; De Boer, W.; De Clercq, C.; De Lotto, B.; De Maria, N.; De Min, A.; De Paula, L.; Di Ciaccio, L.; Di Simone, A.; Doroba, K.; Drees, J.; Dris, M.; Eigen, G.; Ekelof, T.; Ellert, M.; Elsing, M.; Espirito Santo, M.C.; Fanourakis, G.; Fassouliotis, D.; Feindt, M.; Fernandez, J.; Ferrer, A.; Ferro, F.; Flagmeyer, U.; Foeth, H.; Fokitis, E.; Fulda-Quenzer, F.; Fuster, J.; Gandelman, M.; Garcia, C.; Gavillet, P.; Gazis, Evangelos; Gele, D.; Geralis, T.; Gokieli, R.; Golob, B.; Gomez-Ceballos, G.; Goncalves, P.; Gonzalez Caballero, I.; Graziani, E.; Grosdidier, G.; Grzelak, K.; Guy, J.; Haag, C.; Hahn, F.; Hahn, S.; Hallgren, A.; Hamacher, K.; Hamilton, K.; Hansen, J.; Haug, S.; Hauler, F.; Hedberg, V.; Hennecke, M.; Herr, H.; Holmgren, S.O.; Holt, P.J.; Houlden, M.A.; Hultqvist, K.; Yushchenko, O.; Jackson, John Neil; Jalocha, P.; Jarlskog, C.; Jarlskog, G.; Jarry, P.; Jeans, D.; Johansson, Erik Karl; Johansson, P.D.; Jonsson, P.; Joram, C.; Jungermann, L.; Kapusta, Frederic; Katsanevas, S.; Katsoufis, E.; Keranen, R.; Kernel, G.; Kersevan, B.P.; Kiiskinen, A.; King, B.T.; Kjaer, N.J.; Kluit, P.; Kokkinias, P.; Kourkoumelis, C.; Kuznetsov, O.; Krumshtein, Z.; Kucharczyk, M.; Kurowska, J.; Lamsa, J.; Leder, G.; Ledroit, Fabienne; Leinonen, L.; Leitner, R.; Lemonne, J.; Lenzen, G.; Lepeltier, V.; Lesiak, T.; Liebig, W.; Liko, D.; Lipniacka, A.; Lopes, J.H.; Lopez, J.M.; Lopez-Fernandez, R.; Loukas, D.; Lutz, P.; Lyons, L.; MacNaughton, J.; Malek, A.; Maltezos, S.; Mandl, F.; Marco, J.; Marco, R.; Marechal, B.; Margoni, M.; Marin, J.C.; Mariotti, C.; Markou, A.; Martinez-Rivero, C.; Masik, J.; Mastroyiannopoulos, N.; Matorras, F.; Matteuzzi, C.; Mazzucato, F.; Mazzucato, M.; McNulty, R.; Meroni, C.; Meyer, T.; Migliore, E.; Mitaroff, W.; Mjornmark, U.; Moa, T.; Moch, M.; Monig, Klaus; Monge, R.; Montenegro, J.; Moraes, D.; Moreno, S.; Morettini, P.; Muller, U.; Munich, K.; Mulders, M.; Mundim, L.; Murray, W.; Muryn, B.; Myatt, G.; Myklebust, T.; Nassiakou, M.; Navarria, F.; Nawrocki, K.; Nemecek, S.; Nicolaidou, R.; Niezurawski, P.; Nikolenko, M.; Nygren, A.; Oblakowska-Mucha, A.; Obraztsov, V.; Olshevsky, A.; Onofre, A.; Orava, R.; Osterberg, K.; Ouraou, A.; Oyanguren, A.; Paganoni, M.; Paiano, S.; Palacios, J.P.; Palka, H.; Papadopoulou, T.D.; Pape, L.; Parkes, C.; Parodi, F.; Parzefall, U.; Passeri, A.; Passon, O.; Peralta, L.; Perepelitsa, V.; Perrotta, A.; Petrolini, A.; Piedra, J.; Pieri, L.; Pierre, F.; Pimenta, M.; Piotto, E.; Podobnik, T.; Pol, M.E.; Polok, G.; Poropat, P.; Pozdnyakov, V.; Privitera, P.; Pukhaeva, N.; Pullia, A.; Rames, J.; Ramler, L.; Read, Alexander L.; Rebecchi, P.; Rehn, J.; Reid, D.; Reinhardt, R.; Renton, P.; Ryabchikov, D.; Richard, F.; Ridky, J.; Ripp-Baudot, Isabelle; Romero, A.; Ronchese, P.; Rosenberg, E.; Roudeau, P.; Rovelli, T.; Ruhlmann-Kleider, V.; Sadovsky, A.; Salmi, L.; Salt, J.; Savoy-Navarro, A.; Schwanda, C.; Schwering, B.; Schwickerath, U.; Segar, A.; Sekulin, R.; Siebel, M.; Sisakian, A.; Smadja, G.; Smirnova, O.; Sokolov, A.; Sopczak, A.; Sosnowski, R.; Spassoff, T.; Stanitzki, M.; Stocchi, A.; Strauss, J.; Stugu, B.; Szczekowski, M.; Szeptycka, M.; Szumlak, T.; Tabarelli, T.; Taffard, A.C.; Tegenfeldt, F.; Terranova, F.; Timmermans, Jan; Tinti, N.; Tkachev, L.; Tobin, M.; Todorova, S.; Tome, B.; Tonazzo, A.; Tortosa, P.; Travnicek, P.; Treille, D.; Tristram, G.; Trochimczuk, M.; Troncon, C.; Tyapkin, I.A.; Tyapkin, P.; Tzamarias, S.; Ullaland, O.; Uvarov, V.; Valenti, G.; Van Dam, Piet; Van Eldik, J.; Van Lysebetten, A.; Van Remortel, N.; Van Vulpen, I.; Vegni, G.; Veloso, F.; Venus, W.; Verbeure, F.; Verdier, P.; Verzi, V.; Vilanova, D.; Vitale, L.; Vrba, V.; Wahlen, H.; Washbrook, A.J.; Weiser, C.; Wicke, D.; Wickens, J.; Wilkinson, G.; Winter, M.; Witek, M.; Zalewska, A.; Zalewski, P.; Zavrtanik, D.; Zimine, N.I.; Zinchenko, A.; Zoller, P.; Zupan, M.

    2001-01-01

    Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\\rho_T$ and $\\pi_T$ have been performed in the data collected by the DELPHI experiment at LEP at centre-of-mass energies between 192 and 208 GeV corresponding to an integrated luminosity of 452 pb$^{-1}$. Good agreement is observed with the SM expectation in all channels studied. This is translated into an excluded region in the $(M_{\\pi_T},M_{\\rho_T})$ plane. The $\\rho_T$ production is excluded for all $90 < M_{\\rho_T}<206.7$ GeV/c$^2$. Assuming a point-like interaction of the $\\pi_T$ with gauge bosons, an absolute lower limit on the charged $\\pi_T$ mass at 95\\% CL is set aLCERN EDS0

  10. 降雨对汽车防撞雷达系统性能的影响%The impact of rainfall on automotive anti-collision radar system

    Institute of Scientific and Technical Information of China (English)

    李瑛梅; 陈辉; 汪小浩

    2015-01-01

    针对全天候工作需求的汽车防撞雷达系统,以降雨这一自然环境为基础,通过分析降雨在雷达主要工作频段24、35、66、77 GHz的散射和衰减特性,建立了三角调频连续波在雨介质中的传输模型,利用 Matlab 仿真了三角调频连续波在不同传输距离、不同降雨率下经过雨介质区后接收到的时域信号,并讨论了雨区传输距离和降雨率对汽车防撞雷达系统性能的影响。结果表明,降雨对回波信号幅度的衰减程度随传输距离、降雨率的增大而增大,且降雨率的影响比较明显。%In view of the all-weather requirements of automotive anti-collision radar system,the scattering and attenuation of the radar at 24,35,66 and 77 GHz respectively in rainfall is analyzed,and then the propagation model of triangular frequen-cy modulation continuous wave in the rain medium is set up.The time-domain signal of the triangular frequency modulation continuous wave is simulated by Matlab after being through the rain medium,at different propagation distance and rainfall rate which have the influences on the performance of the automotive anti-collision radar.The conclusion shows that the at-tenuation degree of the amplitude of echo signal increases with the increase of propagation distance and rainfall rate,and rainfall rate has a more distinct influence.

  11. $\\tau$ hadronic branching ratios at DELPHI

    CERN Document Server

    Humble, Stephen

    1999-01-01

    Using data collected in the DELPHI detector at LEP1, we have measured the exclusive branching ratios in modes with several hadrons. Both classical cuts and neural network methods have been performed to make the best use of the DELPHI neutral particle identification capability. In addition, a measurement of inclusive branching ratios for tau decays containing one or three charged particles has been performed. (4 refs).

  12. IMPLEMENTATION OF THE DELPHI TECHNIQUE IN FINANCE

    OpenAIRE

    Marcin Kozak; Olesia Iefremova

    2014-01-01

    In the rapidly developing world, forecasting is very important for numerous aspects of our lives, the finance realm not being an exception. Various qualitative and quantitative methods are used to predict what is ahead. One of them is the Delphi method, an anonymous, structured discussion among experts on the forecasted topic. Developed over 60 years ago, it is one of the most effective qualitative forecasting and decision-making techniques. That said, literature review suggests Delphi's adva...

  13. Joining Technology of Dissimilar Materials for Automotive Components(Ⅱ)

    Institute of Scientific and Technical Information of China (English)

    Meung Ho Rhee; Jong Ho Song; Woo Young Chung; Young Myoung Kim

    2004-01-01

    Joining techniques of dissimilar materials for lightweight multi-material automotive body structure were discussed. The joining of 1 .4 mm thickness steel and 2 mm thickness of Al were performed by the new method that is hybrid laser welding system. After aluminum and steel were welded by laser hybrid welding process, the micro-structure investment and the micro-hardness test were carried out. Hybrid laser welding promises a bright future in joining technology of dissimilar materials for automotive components.

  14. State Articulated Instructional Objectives Guide for Occupational Education Programs. State Pilot Model for Automotive Mechanics (DCC V-003) and Automotive Mechanics (High School).

    Science.gov (United States)

    North Carolina State Dept. of Community Colleges, Raleigh.

    This articulation instructional objective guide for automotive mechanics contains summary information on fifteen blocks (courses) of instruction. They are introduction to automotive technology; lubrication and vehicle operating maintenance; cooling system maintenance and repair; automobile heater maintenance and repair; braking system maintenance…

  15. Study of gluon fragmentation and colour octet neutralization in DELPHI

    CERN Document Server

    Buschbeck, Brigitte

    2002-01-01

    Using the full statistics of the DELPHI experiment at $\\sqrt{s}=91 GeV$ 3-jet events are selected and gluon respectively quark jet enriched subsamples are defined. The leading systems of the two kinds of jets are determined using rapidity gaps. The sum of charges of the leading systems is studied. It is found that for gluon-jets there is a significant excess of leading systems with total charge zero when compared to Monte Carlo simulations with JETSET. The corresponding leading systems of quark-jets do not exhibit such an excess. The mass spectra of the leading systems with total charge zero are studied.

  16. The challenge to the automotive battery industry: the battery has to become an increasingly integrated component within the vehicle electric power system

    Science.gov (United States)

    Meissner, Eberhard; Richter, Gerolf

    During the time that the automotive battery was considered to be just a passive component in a vehicle electric power system, the battery industry's answer to all new challenges was constructive improvements. The emerging requirements of even higher function reliability cannot, however be met this way. A battery manufacturer of today has to give recommendations for the appropriate choice of the electrical architecture and has to design batteries that suit best the requirements. In addition, manufactures have to be engaged in the technology of battery management, of battery monitoring and state detection, and performance of prediction under future operation conditions. During service on-board a vehicle, battery performance undergoes significant changes, e.g., loss of storage capability, increase in internal resistance, and changes in voltage characteristics. These ageing processes have to be considered when the electrical architecture is being designed and management strategies are being formulated. Battery monitoring and state detection must be able to identify and quantify battery degradation. Moreover, performance prediction as well as management strategies have to be corrected on account of the changing battery characteristics.

  17. Thermal conductivity enhancement of Al2O3 and SiO2 nanolubricants for application in automotive air conditioning (AAC system

    Directory of Open Access Journals (Sweden)

    Redhwan A.A.M.

    2017-01-01

    Full Text Available Nanolubricant been introduced in compressor might improve the performance of automotive air conditioning system. Prior testing of the nanolubricant enhancement performance, thermal conductivity of Al2O3/PAG and SiO2/PAG nanolubricants has to be investigated and compared. Al2O3 and SiO2 nanoparticles first been dispersed in Polyalkylene Glycol (PAG for different volume concentrations. KD2 Pro was used in determining the thermal conductivity of the nanolubricant. The experimental results showed that the thermal conductivity of the Al2O3/PAG and SiO2/PAG nanolubricants increased by volume concentration but decreased by temperature. The highest thermal conductivity was observed to be 0.153 W.(m · K−1 and enhancement of 1.04 times higher than the base lubricant for Al2O3 with 1.0 volume concentration. Finally regression equations were developed in order to estimate the thermal conductivity for these nanolubricants.

  18. Automotive Electric Power Steering System and its Development%汽车电动助力转向系统及发展

    Institute of Scientific and Technical Information of China (English)

    吴凯

    2012-01-01

    传统的液压助力转向系统只能提供有效的转向助力,但不能根本地解决汽车驾驶员操纵"路感"不足的问题。文章介绍了汽车电动助力转向系统(EPS)的构成、分类、主要特点及未来发展方向。说明了EPS不但可以提供轻便和灵敏的操作,而且可以提供良好的"路感"。通过对EPS的结构和原理分析,指出EPS是未来汽车技术发展的必然趋势。%Traditional hydraulic power steering system only provides effective steering, but cannot give a ‘road feel’ to driver. This article introduces the structure, principles, features and future development of automotive electric power steering. It is showed that EPS can provide perfect‘road feel’ besides light and sensitive operation. By analyzing the structure and principle of EPS, it is indicated that EPS will be the inevitable trend of auto development in the future.

  19. Analysis of University Library Human Resources Performance Evaluation System Based on Delphi Method%基于德尔菲法的高校图书馆人力资源绩效评估指标体系的研究

    Institute of Scientific and Technical Information of China (English)

    毛近菲

    2012-01-01

    人力资源绩效考核的核心要素就是指标体系的建立。本研究应用德尔菲法建立高校图书馆人力资源绩效评估指标体系。指标体系的建立过程是咨询专家的选择、初始指标的确定、咨询问卷的拟定以及两轮专家咨询,最后进行数据处理,最终获得包括一级指标4个,二级指标22个,三级指标47个共计73个指标的一套绩效评估指标体系,对于图书馆人力资源绩效评估体系的建立具有参考意义。%The core element of human resources performance appraisal is the establishment of evaluation index system. This study applies the Delphi method to establish university library human resources performance evaluation index system. Establishment of index system process includes selection of experts, initial indicator setting,designation questionnaire,expert consultation and data process, eventually obtaining a set of library human resource performance evaluation index system including 73 indexes.

  20. Design of Software and Hardware of Automotive Lighting Systems Based on LIN Bus%基于LIN总线的汽车照明系统软硬件开发

    Institute of Scientific and Technical Information of China (English)

    陈恩策; 黄莹; 唐厚君

    2013-01-01

    LIN总线作为汽车电子中常见的一种总线协议,因其通用性广、成本低廉受到众厂商的青睐.为了将LIN总线应用到汽车照明系统上,对LIN报文帧进行了详细的研究,对各个字节的内容进行详细的解释.随后在通用串口的基础上,设计了一套基于LIN总线的汽车照明系统,并给出了主从节点不同的硬件电路图和软件流程图.最终完成了整个照明系统的开发要求.%LIN bus,as a bus protocol commonly used in automotive electronics,is favored by most manufacturers,because of its wide versatility and low cost.In order to apply LIN bus to automotive lighting system,this paper studies in detail the LIN message frame,and gives an elaborately explanation of the contents of each byte.On the basis of the general-purpose serial port,the paper introduces a design of a set of automotive lighting systems based on the LIN bus,and gives the master and slave nodes of different hardware schematics and software flow chart.

  1. Stability analysis of automotive disc brake system with random parameters%随机参数汽车盘式制动器的稳定性分析

    Institute of Scientific and Technical Information of China (English)

    吕辉; 于德介

    2014-01-01

    针对不确定性参数汽车制动器噪声的抑制问题,基于随机参数分析理论,将响应面法与有限元复特征值技术相结合,提出了一种随机参数汽车制动器系统稳定性的分析方法。该方法用随机参数对制动器系统的不确定性进行描述,系统的摩擦系数、制动压力、制动盘厚度、制动片厚度和支撑背板的厚度参数分别采用随机变量表示;为提高分析效率,建立了包含随机变量的制动器不稳定特征值的响应面近似模型,进而根据系统特征值的随机特性对系统稳定性进行分析。用该方法对某车的浮钳盘式制动器系统进行研究,采用蒙特卡洛方法分析了随机参数正态分布假设下系统特征值的概率统计特性和参数灵敏度。结果表明:通过修改制动器支撑背板的厚度以提高支撑刚度,可有效改善制动器系统的稳定性,减小制动噪声的产生。%To suppress the brake noises of an automotive disc brake system with uncertain parameters ,a stability analysis method of automotive brake systems is presented in this paper .The essential idea of this method is to combine the RSM (Re-sponse Surface Method) and complex eigenvalue analysis techniques with random parameters introduced to describe such uncer-tainties in the brake system as friction coefficients ,brake pressure ,disc thickness ,pad thickness and backplate thickness .In order to improve the analysis efficiency ,RSM is used to build up the approximation models to express the functional relation-ships between the unstable eigenvalues and the system parameters ,which makes it available to study the stability of the brake system according to the random characteristics of the unstable eigenvalues .The stability analysis of a float caliper disc brake system is carried out by the proposed method with the random parameters assumed to follow normal distributions .The statisti-cal characteristics and the sensitivities

  2. General Motors automotive fuel cell program

    Energy Technology Data Exchange (ETDEWEB)

    Fronk, M.H.

    1995-08-01

    The objectives of the second phase of the GM/DOE fuel cell program is to develop and test a 30 kW fuel cell powerplant. This powerplant will be based on a methanol fuel processor and a proton exchange membrane PM fuel cell stack. In addition, the 10 kW system developed during phase I will be used as a {open_quotes}mule{close_quotes} to test automotive components and other ancillaries, needed for transient operation.

  3. 汽车LED前照灯智能控制系统设计%Intelligent Control System of Automotive LED Lights

    Institute of Scientific and Technical Information of China (English)

    郭全民; 杨惠; 王健

    2015-01-01

    针对传统汽车照明系统在恶劣环境或复杂路况易发生交通事故等问题,设计了一种L ED前照灯智能控制系统。通过各个传感器输入电路实现信号的采集,采用各开关量输入电路实现车灯的自动开闭,利用步进电机驱动电路实现车灯的左右偏转,将模糊控制策略引入系统中,构造前照灯水平偏转模糊控制器。仿真结果表明,L ED前照灯智能控制系统可以实现会车时远近光灯自动切换,转弯时前照灯照射方向左右自动调整,具有实用价值。%In order to solve the problems that good lighting can not be provided in time in the complicated road situation the bad driving environment ,an automotive LED lighting control system is preseated .The signals are collected by each sensor input circuit the lights switch on and off automatically by the switch input circuit ,the stepper motor driver circuit is used to deflect the lights .The fuzzy control strategy is introduced in the system to design the fuzzy logic controller for the lamp deflection in the horizontal direction .The experimental results show that the system can realize automatic switch between the high beam and low beam lights .T he lighting direction of the headlamps can be adjusted automatically w hen cars turning .T he design is of practical value .

  4. Study on the core nursing skills system for nursing undergraduates by Delphi method%运用Delphi法构建护理本科生核心护理技能体系的研究

    Institute of Scientific and Technical Information of China (English)

    梁小芹; 绳宇

    2011-01-01

    Objective To explore the core nursing skills system for nursing undergraduates. Methods A total of 29 experts were chosen to participate Delphi consultation. Results After two - round consultation,the three dimensions of core nursing skills,which were the fundamental nursing skills,critical and emergency nursing skills and specialized nursing skills, were constructed. The fundamental nursing skills included 14 aspects (59 items) , the critical and emergency nursing skills included 2 aspects (6 items) ,and the specialized nursing skills included 4 aspects ( 19 items). Conclusion The core nursing skills system constructed by Delphi method includes the core nursing skills which nursing students at this stage should have,aed it can guide the nursing education.%目的 探讨护理专业本科毕业生应该具备的核心护理技能.方法 采用Delphi专家萌询法对29名专家进行函询.结果 经过两轮函询,最终确定护理本科毕业生应该具备基础护理技能、重症急救护理技能、专科护理技能3方面的核心护理技能.其中,基础护理技能领域包括14方面共59个具体的核心护理技能条目;重症急救护理技能领域包括2方面共6个具体的核心护理技能条目;专科护理技能领域包含有4方面共19个具体的核心护理技能条目.结论 运用Delphi法构建的护理本科生核心护理技能体系,是现阶段护理本科生应具备的核心护理技能,对护理教学具有指导作用.

  5. Business Case for Online Marketing of Automotive Financing for First West Credit Union

    OpenAIRE

    Sidhu, Amerpreet

    2012-01-01

    This project develops user experience and online marketing strategies for the growth of First West Credit Union, the third largest Credit Union in British Columbia. Several recommendations focus on the Automotive Financing Division of First West Credit Union. The project researches user needs in the automotive finance sector, analyzes operational forces and recommends strategies that affect business operations, customer service, online brand awareness and system usability. Automotive dealersh...

  6. Platform Based Design for Automotive Sensor Conditioning

    CERN Document Server

    Fanucci, L; Iozzi, F; Marino, C; Rocchi, A

    2011-01-01

    In this paper a general architecture suitable to interface several kinds of sensors for automotive applications is presented. A platform based design approach is pursued to improve system performance while minimizing time-to-market.. The platform is composed by an analog front-end and a digital section. The latter is based on a microcontroller core (8051 IP by Oregano) plus a set of dedicated hardware dedicated to the complex signal processing required for sensor conditioning. The microcontroller handles also the communication with external devices (as a PC) for data output and fast prototyping. A case study is presented concerning the conditioning of a Gyro yaw rate sensor for automotive applications. Measured performance results outperform current state-of-the-art commercial devices.

  7. Development of light metals automotive structural subsystems

    Energy Technology Data Exchange (ETDEWEB)

    Luo, A.A.; Sachdev, A.K. [General Motors Research and Development Center, Warren, MI (United States)

    2007-07-01

    Key technological developments in aluminum and magnesium alloys were reviewed in relation to the manufacturing processes that enable lightweight automotive structural subsystems. Examples included the materials and processes evolution of lightweight body structures, chassis systems, and instrument panel beams. New aluminum and magnesium alloys and manufacturing technologies used to reduce mass and improve performance in vehicle cradle structures were discussed. Hydroforming processes used to enable the use of lightweight aluminum alloy tubes in automotive body structures were also reviewed, in addition to body architectures enabled by different materials and manufacturing processes. The review noted that magnesium instrument panels are now being designed to provide significant performance improvement, reduced vibration, and enhanced crashworthiness in new automobiles. It was concluded that vehicles will incorporate more lightweight materials such as nanocomposites and aluminum and magnesium sheets. 9 refs., 10 figs.

  8. The application of SCM in automotive air conditioning control system%单片机在汽车空调控制系统中的应用

    Institute of Scientific and Technical Information of China (English)

    吕俊俊

    2014-01-01

    随着现代汽车空调技术的发展,传统的低精度控制已无法满足人们对汽车舒适度的要求,国外汽车广泛采用的单片机控制装置和电子设备已成为批量极大的机电一体化产品,如点火控制、制动防滑控制及车内空调、门窗控制等。这些装置和系统的采用,使汽车的行驶安全性、可靠性和舒适性有很大提高,节约了燃料。文章提供了AT89C52为核心的控制器在汽车空调系统中的应用。%With the development of modern automotive air conditioning technology, the low precision of traditional control have been unable to meet the requirements of people to automobile comfort, foreign car widely used single-chip microcomputer control device and electronic equipment has become a batch of electromechanical integration products, such as the ignition control, anti-skid braking control and control of the car air conditioning, Windows and doors. The adoption of these devices and system, make the car driving safety, reliability and comfort have greatly improved, saving fuel. The article provides the AT89C52 as the core controller in the application of the automobile air conditioning system.

  9. AUTOMOTIVE DIESEL MAINTENANCE 1. UNIT XXVI, I--CATERPILLAR LUBRICATION SYSTEMS AND COMPONENTS, II--LEARNING ABOUT BRAKES (PART I).

    Science.gov (United States)

    Minnesota State Dept. of Education, St. Paul. Div. of Vocational and Technical Education.

    THIS MODULE OF A 30-MODULE COURSE IS DESIGNED TO DEVELOP AN UNDERSTANDING OF THE FUNCTIONS OF DIESEL ENGINE LUBRICATION SYSTEMS AND COMPONENTS AND THE PRINCIPLES OF OPERATION OF BRAKE SYSTEMS USED ON DIESEL POWERED VEHICLES. TOPICS ARE (1) THE NEED FOR OIL, (2) SERVICE CLASSIFICATION OF OILS, (3) CATERPILLAR LUBRICATION SYSTEM COMPONENTS (4)…

  10. The Network Communication in Embedded C Program in Linux System and Delphi Program in Windows System%嵌入式Linux下C程序与Windows下Delphi程序的网络通信

    Institute of Scientific and Technical Information of China (English)

    王晓玲; 冯军

    2009-01-01

    网络传输是嵌入式系统的关键技术,由于不同宿主机系统及编程语言各不相同,之间的连接将会遇到很多意想不到的问题.文章以UDP协议为例,介绍嵌入式Linux下C语言与windows下Delphi编写的程序进行网络通信的方法,解决Delphi7的网络控件与标准C语言通信时难以匹配的问题,并对Delphi7多线程处理网络通信的机制进行探讨.

  11. Guidelines for the Experts' Elicitation Using the Delphi Method: for GQA

    Energy Technology Data Exchange (ETDEWEB)

    Hwang, Mee Jeong; Yang, Joon Eon; Kim, Kil Yoo

    2005-01-15

    This report describes a method and process assigning a value for system functions to categorize the safety-significant SSCs(Structures, Systems, Components) in graded quality assurance(GQA). In this study, we used the Delphi process for elicitation of the expert opinions. In Delphi Process, it is required to use a guideline for consistency. Therefore, we developed the guideline for SSCs categorization. This guideline was written to assign a value for system functions to screen out the safety-significant SSCs. This guideline provides with the requirement for an ideal expert panel composition, questionnaire, the description for issues and the guide assigning values.

  12. Design of automotive intellectual control meter system based on embedded Linux system%基于嵌入式Linux汽车智能仪表系统的设计

    Institute of Scientific and Technical Information of China (English)

    邓宗权; 蒋向东; 王继岷; 严亮

    2014-01-01

    为了优化汽车仪表系统性能,提高系统智能化、人车交互界面友好度,以 ARM 微处理器S5PV210为控制核心设计了一款汽车智能仪表系统。该系统以嵌入式实时操作系统 Linux 为软件平台,结合 CAN 现场总线技术,并采用开放源代码的图形界面库 QT 开发仪表终端应用程序。经实验验证,系统性能得到了改善。%In order to optimize the performance of the automotive meter system , improve the friendliness degrees of man-vehi-cle interaction interface , and make the system become intelligent , a type of automotive intellectual control meter system is designed in this paper . ARM processor S5PV210 is used as the core of hardware platform and embedded Linux operating system is used as the core of the software platform . The CAN bus is one of the widely applied fieldbus and used in the intellectual control meter system . Additionally , the open source graphical user interface library QT is used to develop the terminal application program . The re-sults of experimental verification shows that the performance of the system is improved .

  13. An Organizational Effectiveness Evaluation System for College Sports Associations Established by Delphi Method%应用德尔菲法建立高校体育社团的组织效能评价体系

    Institute of Scientific and Technical Information of China (English)

    申桂芳

    2015-01-01

    T his paper presents an organizational effectiveness evaluation system for college sports associations .Firstly ,we conducted two rounds of expert investigation by the Delphi method .T hen ,we summarized the results of the survey by mathematical statistics .Finally ,we es‐tablished the 30 formal evaluation indicators and theirs weights .T he top three evaluation indicators are community awareness in schools ,com‐munity leaders management capabilities ,and the ability to educate members .%运用德尔菲法对高校体育社团的组织效能评价指标进行了两轮专家调查,并采用数理统计法对调查结果进行归纳处理,最终确定了30个评价指标,其中社团在校内的知名度、社团领导的管理能力、是否注重培养重要成员3个指标平均得分排在前3.

  14. Improving of performance system of warranty for automotive engineering abroad on the basis of data of rejections analysis

    Science.gov (United States)

    Makarova, I. V.; Habibullin, R. G.; Belyaev, E. I.; Safonov, A. S.; Cheremin, A. A.

    2014-12-01

    Article deals with improvement possibility of warranty package fulfillment system of automobile vehicles manufacturer in the foreign markets by application of warranty complete sets preparation technique taking into account climatic features of the countries which influence reliability parameters

  15. Implementing a Compressed Air System Leak Management Program at an Automotive Plant (Visteon's Monroe Plant)

    Energy Technology Data Exchange (ETDEWEB)

    None

    2001-01-01

    The energy team at Visteon’s Monroe plant, formerly owned by Ford Motor Company, implemented an ongoing compressed air system leak management program. The team developed an approach that combined a traditional “find and fix” effort with an innovative implementation and marketing program. As a result of the leak management program, compressed air system consumption was reduced by more than 50% on a per production unit basis.

  16. A Design of Hydraulic Circuit Display System of Automotive ESP Tester Based on Microcontroller%基于单片机的汽车ESP试验台油路显示系统设计

    Institute of Scientific and Technical Information of China (English)

    王冬良; 陈南; 宋城运; 陈娟

    2014-01-01

    As an advanced active security control system,automotive electronic stability system(ESP)can effectively improve the stability of vehicles under the extreme condition and reduce traffic accident rate through applying the corresponding braking control actively.Currently,there is hardly any automotive ESP tester domestical y,so this paper proposes a design of hydraulic circuit display system of automotive ESP tester which sends corresponding ESP working signal to microcontrol er through trigger signal.Microcontrol er system lightens the LED representing working condition of ESP in the display system,displaying the working principles of ESP.%汽车电子稳定系统,作为一种先进的主动安全控制系统,能够通过主动施加相应的制动控制,有效提高车辆在极限工况下的行驶稳定性,降低交通事故率。目前,国内汽车电子稳定系统(ESP)试验台几乎空白,于是,本文提出了汽车电子稳定系统(ESP)教学试验台的油路显示系统设计,该系统是通过触发信号发送对应的ESP工作信号到单片机系统,单片机系统将显示系统对应ESP工作状态的LED点亮,显示ESP的工作原理。

  17. Automotive Stirling Engine Development Project

    Science.gov (United States)

    Ernst, William D.; Shaltens, Richard K.

    1997-01-01

    The development and verification of automotive Stirling engine (ASE) component and system technology is described as it evolved through two experimental engine designs: the Mod 1 and the Mod 2. Engine operation and performance and endurance test results for the Mod 1 are summarized. Mod 2 engine and component development progress is traced from the original design through hardware development, laboratory test, and vehicle installation. More than 21,000 hr of testing were accomplished, including 4800 hr with vehicles that were driven more dm 59,000 miles. Mod 2 engine dynamometer tests demonstrated that the engine system configuration had accomplished its performance goals for power (60 kW) and efficiency (38.5%) to within a few percent. Tests with the Mod 2 engine installed in a delivery van demonstrated combined metro-highway fuel economy improvements consistent with engine performance goals and the potential for low emission levels. A modified version of the Mod 2 has been identified as a manufacturable design for an ASE. As part of the ASE project, the Industry Test and Evaluation Program (ITEP), NASA Technology Utilization (TU) project, and the industry-funded Stirling Natural Gas Engine program were undertaken to transfer ASE technology to end users. The results of these technology transfer efforts are also summarized.

  18. Experiments and Simulations on a Heat Exchanger of an Automotive Exhaust Thermoelectric Generation System Under Coupling Conditions

    Science.gov (United States)

    Liu, X.; Yu, C. G.; Chen, S.; Wang, Y. P.; Su, C. Q.

    2014-06-01

    The present experimental and computational study investigates an exhaust gas waste heat recovery system for vehicles, using thermoelectric modules and a heat exchanger to produce electric power. It proposes a new plane heat exchanger of a thermoelectric generation (TEG) system, producing electricity from a limited hot surface area. To investigate the new plane heat exchanger, we make a coupling condition of heat-flow and flow-solid coupling analysis on it to obtain the temperature, heat, and pressure field of the heat exchanger, and compared it with the old heat exchanger. These fields couple together to solve the multi-field coupling of the flow, solid, and heat, and then the simulation result is compared with the test bench experiment of TEG, providing a theoretical and experimental basis for the present exhaust gas waste heat recovery system.

  19. Analysis of airborne radiometric data. Volume 2. Description, listing, and operating instructions for the code DELPHI/MAZAS. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Sperling, M.; Shreve, D.C.

    1978-12-01

    The computer code DELPHI is an interactive English language command system for the analysis of airborne radiometric data. The code includes modules for data reduction, data simulation, time filtering, data adjustment and graphical presentation of the results. DELPHI is implemented in FORTRAN on a DEC-10 computer. This volume gives a brief set of operations instructions, samples of the output obtained from hard copies of the display on a Tektronix terminal and finally a listing of the code.

  20. Bed geometries, fueling strategies and optimization of heat exchanger designs in metal hydride storage systems for automotive applications: A review

    DEFF Research Database (Denmark)

    Mazzucco, Andrea; Dornheim, Martin; Sloth, Michael

    2014-01-01

    given to metal hydride storage tanks for light duty vehicles, since this application is the most promising one for such storage materials and has been widely studied in the literature. Enhancing cooling/heating during hydrogen uptake and discharge has found to be essential to improve storage systems......This review presents recent developments for effective heat management systems to be integrated in metal hydride storage tanks, and investigates the performance improvements and limitations of each particular solution. High pressures and high temperatures metal hydrides can lead to different design...

  1. Characterization of three-way automotive catalysts

    Energy Technology Data Exchange (ETDEWEB)

    Kenik, E.A.; More, K.L. [Oak Ridge National Laboratory, TN (United States); LaBarge, W. [General Motors-AC Delco Systems, Flint, MI (United States)] [and others

    1995-05-01

    This has been the second year of a CRADA between General Motors - AC Delco Systems (GM-ACDS) and Martin Marietta Energy Systems (MMES) aimed at improved performance/lifetime of platinum-rhodium based three-way-catalysts (TWC) for automotive emission control systems. While current formulations meet existing emission standards, higher than optimum Pt-Rh loadings are often required. In additionk, more stringent emission standards have been imposed for the near future, demanding improved performance and service life from these catalysts. Understanding the changes of TWC conversion efficiency with ageing is a critical need in improving these catalysts.

  2. Understanding the formative stage of technological innovation system development: The case of natural gas as an automotive fuel

    NARCIS (Netherlands)

    Suurs, R.A.A.; Hekkert, M.P.; Kieboom, S.; Smits, R.E.H.M.

    2010-01-01

    This study contributes to insights into mechanisms that influence the successes and failures of emerging energy technologies. It is assumed that for an emerging technology to fruitfully develop, it should be fostered by a Technological Innovation System (TIS), which is the network of actors, institu

  3. MATLAB/Simulink Framework for Modeling Complex Coolant Flow Configurations of Advanced Automotive Thermal Management Systems: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Titov, Eugene; Lustbader, Jason; Leighton, Daniel; Kiss, Tibor

    2016-03-22

    The National Renewable Energy Laboratory's (NREL's) CoolSim MATLAB/Simulink modeling framework was extended by including a newly developed coolant loop solution method aimed at reducing the simulation effort for arbitrarily complex thermal management systems. The new approach does not require the user to identify specific coolant loops and their flow. The user only needs to connect the fluid network elements in a manner consistent with the desired schematic. Using the new solution method, a model of NREL's advanced combined coolant loop system for electric vehicles was created that reflected the test system architecture. This system was built using components provided by the MAHLE Group and included both air conditioning and heat pump modes. Validation with test bench data and verification with the previous solution method were performed for 10 operating points spanning a range of ambient temperatures between -2 degrees C and 43 degrees C. The largest root mean square difference between pressure, temperature, energy and mass flow rate data and simulation results was less than 7%.

  4. Automotive powerplant evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Stamper, K.R.

    1976-06-01

    A program to obtain automotive engine performance data for use in estimating vehicle emission and fuel economy in varied service and duty is described. An experimental test procedure for generating fuel consumption and emissions data adequate to characterize an engine over its full operating range was developed for steady-state tests. The development of a test procedure for transient testing is currently under way. The steady-state data will be collected from approximately 23 different engines, including: (1) 16 current production spark-ignition engines; (2) 3 pre-production or prototype advanced design spark-ignition engines; and (3) 4 light-duty diesel engines which are, or could be, used in passenger car applications. To date, steady-state ''engine maps'' were completed on 10 engines. A simplified model used to compare steady-state data with chassis dynamometer data indicates that results thus far can be used to obtain estimates of fuel economy in automobiles.

  5. Investigation of the Performance of HEMT-Based NO, NO₂ and NH₃ Exhaust Gas Sensors for Automotive Antipollution Systems.

    Science.gov (United States)

    Halfaya, Yacine; Bishop, Chris; Soltani, Ali; Sundaram, Suresh; Aubry, Vincent; Voss, Paul L; Salvestrini, Jean-Paul; Ougazzaden, Abdallah

    2016-02-23

    We report improved sensitivity to NO, NO₂ and NH₃ gas with specially-designed AlGaN/GaN high electron mobility transistors (HEMT) that are suitable for operation in the harsh environment of diesel exhaust systems. The gate of the HEMT device is functionalized using a Pt catalyst for gas detection. We found that the performance of the sensors is enhanced at a temperature of 600 °C, and the measured sensitivity to 900 ppm-NO, 900 ppm-NO₂ and 15 ppm-NH₃ is 24%, 38.5% and 33%, respectively, at 600 °C. We also report dynamic response times as fast as 1 s for these three gases. Together, these results indicate that HEMT sensors could be used in a harsh environment with the ability to control an anti-pollution system in real time.

  6. Relationship Between the maturity of continuous improvement and the certification of quality management system in automotive sector in Brazil

    Directory of Open Access Journals (Sweden)

    Alexandra de Fatima Chiaradia Valadão

    2013-06-01

    Full Text Available The present paper aims to identify the relationship between the maturity of continuous improvement and the certification of the quality management system within a company in the Autoparts industry located in the South of Minas Gerais State. Continuous improvement has become the element of greatest importance for the development of all kinds of organizations, whether in production operations or when providing services, with the ends of reaching the objective of the present paper, where the following propositions shall be verified. The time necessary to implement the Quality Management System in certified companies brings forth implications with regards to the maturity of continuous improvement. The continuous improvement process is a gradual organization learning process. With the purpose of dealing with this issue, the explanatory qualitative Case Study method was chosen, through the use of the triangulation method where interviews with representatives were used, with direct observation and survey and analysis of historical facts. The approach taken is primarily descriptive/qualitative, where it was sought to analyze, classify, and interpret facts without research interference. As a result, it was observed that within the research unit the certification time did not show to be the principal factor for the advance in continuous improvement maturity levels. Organizational learning significantly contributes to the maturation of the continuous improvement system, especially when found deeply taking root in the company´s culture.

  7. Thermodynamic analysis of a fuel-cell-system for automotive transportation; Thermodynamische Analyse eines Brennstoffzellensystems zum Antrieb von Kraftfahrzeugen

    Energy Technology Data Exchange (ETDEWEB)

    Berger, Oliver

    2009-09-28

    The focus of the investigations was on the cooling of the fuel cell stack module. The many interfaces between the cooling system and other systems (hydrogen and air supply) made it necessary to take a more comprehensive approach. A commercial fuel cell vehicle was used for the investigations. In the first step, experiments were made on system test stands and in the climate wind tunnel. The measured data presented a picture of the status and helped to define the limits of heat transfer to the environment via the fuel cell cooling system. They were also used for validating a dynamic cooling system validation model. With this model, sensitivity analyses were carried out to define the key influencing parameters for increasing the heat transfer to the environment. Optimizations were made in terms of connection of the system component and their design and placement in the front part of the vehicle. On the basis of these and other findings, the optimized aggregate was again investigated on a system test stand in order to obtain more general energetic and exergetic information in the form of Sankey diagrams for visualization of the energy and exergy flows. The stack module under investigation had an efficiency of 61 percent in the test conditions while the aggregate efficiency in consideration of all auxiliary loads was 54 percent. Exergy losses were mostly caused by the fuel cell stack module, the humidifier and the air compressor. Further optimization potential was identified in the utilization of the exhaust exergy which amounts to about 7.3 percent of the fuel exergy. After integration of the fuel cell aggregate in a new vehicel, the new vehicle was again tested in the wind tunnel in order to validate the optimization measures on the cooling system side. For this, the two fuel cell vehicles were compared using the so-called Grossglockner driving cycle which is a test procedure for cooling systems of serially produced vehicles. According to the specifications, the real

  8. Advanced Automotive Technologies annual report to Congress, fiscal year 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This annual report serves to inform the United States Congress on the progress for fiscal year 1996 of programs under the Department of Energy`s Office of Advanced Automotive Technologies (OAAT). This document complies with the legislative requirement to report on the implementation of Title III of the Automotive Propulsion Research and Development Act of 1978. Also reported are related activities performed under subsequent relevant legislation without specific reporting requirements. Furthermore, this report serves as a vital means of communication from the Department to all public and private sector participants. Specific requirements that are addressed in this report are: Discussion of how each research and development contract, grant, or project funded under the authority of this Act satisfies the requirements of each subsection; Current comprehensive program definition for implementing Title III; Evaluation of the state of automotive propulsion system research and development in the United States; Number and amount of contracts and grants awarded under Title III; Analysis of the progress made in developing advanced automotive propulsion system technology; and Suggestions for improvements in automotive propulsion system research and development, including recommendations for legislation.

  9. Simultaneous-Fault Diagnosis of Automotive Engine Ignition Systems Using Prior Domain Knowledge and Relevance Vector Machine

    Directory of Open Access Journals (Sweden)

    Chi-Man Vong

    2013-01-01

    Full Text Available Engine ignition patterns can be analyzed to identify the engine fault according to both the specific prior domain knowledge and the shape features of the patterns. One of the challenges in ignition system diagnosis is that more than one fault may appear at a time. This kind of problem refers to simultaneous-fault diagnosis. Another challenge is the acquisition of a large amount of costly simultaneous-fault ignition patterns for constructing the diagnostic system because the number of the training patterns depends on the combination of different single faults. The above problems could be resolved by the proposed framework combining feature extraction, probabilistic classification, and decision threshold optimization. With the proposed framework, the features of the single faults in a simultaneous-fault pattern are extracted and then detected using a new probabilistic classifier, namely, pairwise coupling relevance vector machine, which is trained with single-fault patterns only. Therefore, the training dataset of simultaneous-fault patterns is not necessary. Experimental results show that the proposed framework performs well for both single-fault and simultaneous-fault diagnoses and is superior to the existing approach.

  10. The Examination of the Corporate Governance System at Supplier Companies: Empirical Evidence from Hungarian Automotive Industry Ercsey Ida

    Directory of Open Access Journals (Sweden)

    Ercsey Ida

    2016-06-01

    Full Text Available Information management and the organizational structure can contribute to the firms’ competitive advantage and business success. In the first part of our study we summarize the results we obtained by analyzing the corporate governance system in connection with the structure of enterprises and their decision making. Then we have an insight into the leadership style of the suppliers from the point of view of the participation of the staff in decision making. In the second part we analyze the information management of the supplier companies on the basis of the answers from the management. We evaluate the strategic and the operational concept of information management, proceeding from the strategy-making activity. The accomplishment of permanent renewal and willingness to innovate are both indispensable for achieving elasticity in organizations. We explore how the suppliers introduce innovation in connection with the firm structure and the information system. Finally, we consider how some essential company characteristics, namely company size, ownership, region, and the width of the product assortment, affect various company functions.

  11. Ranking green electronic supplier in auto industry using fuzzy Delphi

    Directory of Open Access Journals (Sweden)

    Soheil Sarmad Saeidi

    2014-11-01

    Full Text Available This paper presents a study to rank different green supplier involved in supplement of electronic parts in auto industry using fuzzy Delphi. The proposed study uses the fuzzy analytic hierarchy process for weighing criteria and VIKOR method to rank the suppliers. The results show that measures of corporate social responsibility, environmental management system, green procurement and green production are the most important criteria for green supplier selection. In addition, product quality, online tracking of orders, delivery time and quality of online information are the most important criteria for choosing a green electronic supplier.

  12. Combining support vector machines with linear quadratic regulator adaptation for the online design of an automotive active suspension system

    Science.gov (United States)

    Chiou, J.-S.; Liu, M.-T.

    2008-02-01

    As a powerful machine-learning approach to pattern recognition problems, the support vector machine (SVM) is known to easily allow generalization. More importantly, it works very well in a high-dimensional feature space. This paper presents a nonlinear active suspension controller which achieves a high level performance by compensating for actuator dynamics. We use a linear quadratic regulator (LQR) to ensure optimal control of nonlinear systems. An LQR is used to solve the problem of state feedback and an SVM is used to address the question of the estimation and examination of the state. These two are then combined and designed in a way that outputs feedback control. The real-time simulation demonstrates that an active suspension using the combined SVM-LQR controller provides passengers with a much more comfortable ride and better road handling.

  13. Escalation Practices in Automotive Development

    Directory of Open Access Journals (Sweden)

    Tomaž Jurejevčič

    2016-12-01

    Full Text Available Research Question (RQ: In automotive business many risk-involved situations occur and when detected, an escalation process takes place. Although defined and controlled by process guidelines and being supported by experts, escalation brings increased emotional pressure and stress for parties involved. Do escalation processes in automotive industry maintain all implied challenges? Purpose: The purpose of the article is to present current status of escalation processes and gaps between theory and practice cases. Results of the analysis are recommendations of good engineering practice derived also from actual experiences and learned lessons. Method: The method involves analysis of practical cases from automotive development process, lessons learned, anonymous survey of automotive engineers and classification of experiences. Results: Results of the survey have shown that the controlled escalation process for know-how related escalations is needed in order to establish the environment where the team is able to provide new, sometimes unconventional ideas for the problem to be solved. Organization: Presented recommendations and measures enable organization and managers to put the expertise and experiences of employees into action for problem solving during escalation. Originality: In this article some practices are presented that, although simple and some yet seen, with proper adjustment stemming from real life processes give a fruitful settlement of escalations in automotive development business.

  14. Hybrid Modeling and Simulation of Automotive Supply Chain Network

    Directory of Open Access Journals (Sweden)

    Wen Wang

    2013-07-01

    Full Text Available According to the operation of automotive supply chain and the features of various simulation methods, we create and simulate a automotive supply chain network model with the core enterprise of two vehicle manufacturers, consisting of several parts suppliers, vehicle distributors and logistics service providers. On this basis of a conceptual model including the establishment of enterprise layer, business layer and operation layer, we establish a detailed model of the network system according to the network structure of automotive supply chain, the operation process and the internal business process of core enterprises; then we use System Dynamics (SD, Discrete Event Simulation (DES and Agent Based Modeling (ABM to describe the operating state of each node in the network model. We execute and analyze the simulation model of the whole network system described by Anylogic, using the results of the distributors’ inventory, inventory cost and customer’s satisfaction to prove the effectiveness of the model.

  15. Methodology,Architecture and Development Flow of Automotive Embedded Systems%汽车嵌入式系统开发方法、体系架构和流程

    Institute of Scientific and Technical Information of China (English)

    魏学哲; 戴海峰; 孙泽昌

    2012-01-01

    介绍了汽车嵌入式系统的内涵,回顾了汽车嵌入式系统的技术发展历史,分析了未来汽车嵌入式系统发展的特点,并得出以下结论:开发一个高效、可靠的汽车嵌入式系统离不开简明精确的开发方法、完善细致的体系架构和详细合理的开发流程.在此基础上,概括了汽车嵌入式系统开发的技术体系,并具体地从基于模型的开发方法、基于AUTOSAR(automotive open system architecture)的体系架构以及基于V模式的开发流程3个方面介绍了该技术体系.这三者分别从对象的描述、对象的层次结构和开发的时间顺序3个不同的方面对嵌入式系统的开发方法做了定义和约束,从而保证了这个开发体系的可靠性和完整性.%This paper reviews the history of the automotive embedded system, and its principles and future characteristics are also introduced and analyzed. A conclusion is drawn that to develop a high efficient and reliable automotive embedded system relies on an accurate developing method, a systematic architecture and a reasonable process. A detailed introduction to this methodology including the model based development (MBD), the AUTOSAR architecture and the V mode development process is also given. The MBD defines the description of the object, the AUTOSAR architecture describes the structure of the object, and V mode process guides the sequence of the development steps. With the methodology, the reliability and integrity of the automotive embedded system development can be guaranteed.

  16. The DELPHI detector at CERN's LEP collider

    CERN Multimedia

    1998-01-01

    DELPHI (DEtector with Lepton, Photon and Hadron Identification), is a detector for e+e- physics, with special emphasis on powerful particle identification , three-dimensional information, high granularity and precise vertex determination. It is installed at LEP (Large Electron and Positron collider) at CERN where it has operated since 1989.

  17. The Delphi Technique: Making Sense of Consensus

    Directory of Open Access Journals (Sweden)

    Chia-Chien Hsu

    2007-08-01

    Full Text Available The Delphi technique is a widely used and accepted method for gathering data from respondents within their domain of expertise. The technique is designed as a group communication process which aims to achieve a convergence of opinion on a specific real-world issue. The Delphi process has been used in various fields of study such as program planning, needs assessment, policy determination, and resource utilization to develop a full range of alternatives, explore or expose underlying assumptions, as well as correlate judgments on a topic spanning a wide range of disciplines. The Delphi technique is well suited as a method for consensus-building by using a series of questionnaires delivered using multiple iterations to collect data from a panel of selected subjects. Subject selection, time frames for conducting and completing a study, the possibility of low response rates, and unintentionally guiding feedback from the respondent group are areas which should be considered when designing and implementing a Delphi study.

  18. The Delphi Method in Rehabilitation Counseling Research

    Science.gov (United States)

    Vazquez-Ramos, Robinson; Leahy, Michael; Estrada Hernandez, Noel

    2007-01-01

    Rehabilitation researchers have found in the application of the Delphi method a more sophisticated way of obtaining consensus from experts in the field on certain matters. The application of this research methodology has affected and certainly advanced the body of knowledge of the rehabilitation counseling practice. However, the rehabilitation…

  19. End-view of the DELPHI detector

    CERN Multimedia

    1996-01-01

    End-view of the 10-m diameter DELPHI detector at CERN's LEP electron-positron collider from 1989 to 2000. Its concentric modules, including a pioneer large-scale application of the Ring Imaging Cherenkov technique to differentiate between all the various secondary particles, ensure high precision and 'granularity'.

  20. 48 CFR 1852.223-76 - Federal Automotive Statistical Tool Reporting.

    Science.gov (United States)

    2010-10-01

    ... Statistical Tool Reporting. 1852.223-76 Section 1852.223-76 Federal Acquisition Regulations System NATIONAL... Provisions and Clauses 1852.223-76 Federal Automotive Statistical Tool Reporting. As prescribed at 1823.271 and 1851.205, insert the following clause: Federal Automotive Statistical Tool Reporting (JUL 2003) If...

  1. Equipment for testing automotive lead/acid batteries under SAE J240a conditions

    Science.gov (United States)

    Hamilton, J. A.; Rand, D. A. J.

    Battery cycling equipment has been designed and constructed to test lead/acid batteries according to the American Society of Automotive Engineers' (SAE) J240a Standard. This life test simulates automotive service where the battery operates in a voltage-regulated charging system. The CSIRO design uses a master/slave concept to reduce both construction time and cost.

  2. Requirements for future automotive batteries - a snapshot

    Science.gov (United States)

    Karden, Eckhard; Shinn, Paul; Bostock, Paul; Cunningham, James; Schoultz, Evan; Kok, Daniel

    Introduction of new fuel economy, performance, safety, and comfort features in future automobiles will bring up many new, power-hungry electrical systems. As a consequence, demands on automotive batteries will grow substantially, e.g. regarding reliability, energy throughput (shallow-cycle life), charge acceptance, and high-rate partial state-of-charge (HRPSOC) operation. As higher voltage levels are mostly not an economically feasible alternative for the short term, the existing 14 V electrical system will have to fulfil these new demands, utilizing advanced 12 V energy storage devices. The well-established lead-acid battery technology is expected to keep playing a key role in this application. Compared to traditional starting-lighting-ignition (SLI) batteries, significant technological progress has been achieved or can be expected, which improve both performance and service life. System integration of the storage device into the vehicle will become increasingly important. Battery monitoring systems (BMS) are expected to become a commodity, penetrating the automotive volume market from both highly equipped premium cars and dedicated fuel-economy vehicles (e.g. stop/start). Battery monitoring systems will allow for more aggressive battery operating strategies, at the same time improving the reliability of the power supply system. Where a single lead-acid battery cannot fulfil the increasing demands, dual-storage systems may form a cost-efficient extension. They consist either of two lead-acid batteries or of a lead-acid battery plus another storage device.

  3. Importance of Projects in Automotive Industry

    Science.gov (United States)

    Babeľová, Zdenka Gyurák; Lenhardtová, Zuzana; Cagáňová, Dagmar; Weidlichová-Luptáková, Stanislava

    2010-01-01

    For automotive companies, research and development is the key to success for new generation of products. The aim of this article is to accent the importance of innovations and innovations-focused projects in automotive industry. Relevance of co-operation between automotive industry and educational institutions is noticed in the article, too. Furthermore, history of automotive industry in Slovakia is outlined in the article. Main part of the article is focused on project AUTOCLUSTERS.

  4. The Perceptions of the Automotive Supply Industry Related to Information Technology Utilization and Creating Barriers to Competitive Market Entry: A Case Study of the Implications for Strategic Planning

    Science.gov (United States)

    Cargal, Joseph L.

    2010-01-01

    The purpose of this study was to examine information technology/systems strategy related factors in the automotive supply industry based on responses to the Strategic Planning and Business Performance Survey provided to automotive suppliers. This population produces supplies to the automotive industry with products valued at hundreds of billions…

  5. The Perceptions of the Automotive Supply Industry Related to Information Technology Utilization and Creating Barriers to Competitive Market Entry: A Case Study of the Implications for Strategic Planning

    Science.gov (United States)

    Cargal, Joseph L.

    2010-01-01

    The purpose of this study was to examine information technology/systems strategy related factors in the automotive supply industry based on responses to the Strategic Planning and Business Performance Survey provided to automotive suppliers. This population produces supplies to the automotive industry with products valued at hundreds of billions…

  6. Utilization of Durability Criterion to Develop Automotive Components

    DEFF Research Database (Denmark)

    Ricardo, Luiz Carlos Hernandes

    2010-01-01

    . This paper will present a review of the techniques used in the automotive industry regarding durability before mentioned systems. The paper will present the procedures to obtain the spectrum loading to use in finite element analysis and the validation in laboratory and proving grounds.......Today the automotive companies must reduce the time to development of new products with improvement in performance, durability and low cost reductions where possible. To achieve this goal the carmakers need to improve the design criterion of car systems like body, chassis and suspension components...

  7. Developing e-learning solutions in the automotive industry

    Directory of Open Access Journals (Sweden)

    Razvan Virgil Bogdan

    2016-07-01

    Full Text Available In the rapid developing market of automotive industry, cutting-edge technologies are being introduced. One such example is the AUTOSAR standard. Companies are investing a large amount of finances for the training of their employees into the intricacies of such technologies. In order to face such an increase of the training costs, automotive corporation have started lately switching their approach to e-Learning systems. This paper presents an e-Learning approach developed in the automotive industry in order to address the demands of teaching AUTOSAR standard. The developed e-Learning project is called Academy. In order to develop the e-Learning solution we focused on the Software Development part of automotive industry. Therefore we had to gather the ideas from different trainers, come with a common approach and use specific techniques so that the trainee should get a real feeling of the material. It is presented the design, implementation and evaluation of this e-Learning solution, but more than that faced issues and learned lessons. Developing this solution has offered different insights into how to approach such a task which are useful for the further expansion of the project, but also for future researchers who might encounter such a challenge of developing e-Learning solutions for the automotive industry. These are all grouped in a set of guidelines related to following a model of implementation, getting track of participants, user interaction with the AUTOSAR standard, test and production development and so on.

  8. 利用汽车余热的吸收式制冷系统的研究%Study on LiBr Absorption Refrigeration System with Automotive Engines’ Exhausted Heat

    Institute of Scientific and Technical Information of China (English)

    李小华; 唐景立

    2013-01-01

      根据奇瑞A3轿车空调系统和冷却水及排气系统的结构特点,结合溴化锂吸收式制冷系统的工作原理,提出将汽车排气管和发动机冷却水箱进行结构改造作为溴化锂吸收式制冷机的发生器,代替传统的汽车空调系统和发动机的冷却系统。并应用工程热力学、传热学和流体力学的方法对溴化锂吸收式制冷机和现有的空调系统进行热力计算和各传热设备的传热面积计算,并进行了比较,结果表明:单效溴化锂吸收式冷热水机组在汽车空调系统中的应用是可行的,并且溴化锂制冷机组结构紧凑,使原有的汽车空调系统小型化。%Based on the structure and characteristic of automotive refrigeration system and engine circulation cooling water system and exhausted heat system, combing the working principle of lithium bromide absorption refrigeration system, the authors used the automotive exhaust pipe and cooling water tank improved as the generator of the lithium bromide absorption refrigeration system, which might realize the objective with the lithium bromide absorption hot-cold water unit to replace the automobile air conditioning refrigeration and heating system and the automobile engine cooling system. The methods of thermodynamics, heat transfer, and hydrodynamics are used to do the computation of the thermodynamic and the heat transfer area of the lithium bromide absorption refrigeration system. And has carried on the comparison with the existing air-conditioning system, the results show LiBr Absorption Refrigeration System with Automotive Engines’ Exhausted Heat is feasible, and its system structure is simple.

  9. Advanced Microsystems for Automotive Applications 2005

    Science.gov (United States)

    Valldorf, Jürgen; Gessner, Wolfgang

    Since 1995 the annual international forum on Advanced Microsystems for Automotive Applications (AMAA) has been held in Berlin. The event offers a unique opportunity for microsystems component developers, system suppliers and car manufacturers to show and to discuss competing technological approaches of microsystems based solutions in vehicles. The book accompanying the event has demonstrated to be an efficient instrument for the diffusion of new concepts and technology results. The present volume including the papers of the AMAA 2005 gives an overview on the state-of-the-art and outlines imminent and mid-term R&D perspectives.

  10. Competencies for Leaders of Volunteers During the Next Decade: A National Delphi Study.

    Science.gov (United States)

    Boyd, Barry L.

    Using the Delphi technique, a nationwide panel of experts identified 33 competencies that volunteer administrators (VAs) will need during the next decade and categorized them into these five constructs: organizational leadership; systems leadership; organizational culture; personal skills; and management skills. Twelve barriers to acquiring the…

  11. Performance evaluation of an automotive thermoelectric generator

    Science.gov (United States)

    Dubitsky, Andrei O.

    Around 40% of the total fuel energy in typical internal combustion engines (ICEs) is rejected to the environment in the form of exhaust gas waste heat. Efficient recovery of this waste heat in automobiles can promise a fuel economy improvement of 5%. The thermal energy can be harvested through thermoelectric generators (TEGs) utilizing the Seebeck effect. In the present work, a versatile test bench has been designed and built in order to simulate conditions found on test vehicles. This allows experimental performance evaluation and model validation of automotive thermoelectric generators. An electrically heated exhaust gas circuit and a circulator based coolant loop enable integrated system testing of hot and cold side heat exchangers, thermoelectric modules (TEMs), and thermal interface materials at various scales. A transient thermal model of the coolant loop was created in order to design a system which can maintain constant coolant temperature under variable heat input. Additionally, as electrical heaters cannot match the transient response of an ICE, modelling was completed in order to design a relaxed exhaust flow and temperature history utilizing the system thermal lag. This profile reduced required heating power and gas flow rates by over 50%. The test bench was used to evaluate a DOE/GM initial prototype automotive TEG and validate analytical performance models. The maximum electrical power generation was found to be 54 W with a thermal conversion efficiency of 1.8%. It has been found that thermal interface management is critical for achieving maximum system performance, with novel designs being considered for further improvement.

  12. Making aerospace technology work for the automotive industry - Introduction

    Science.gov (United States)

    Olson, W. T.

    1978-01-01

    In many cases it has been found that advances made in one technical field can contribute to other fields. An investigation is in this connection conducted concerning subjects from contemporary NASA programs and projects which might have relevance and potential usefulness to the automotive industry. Examples regarding aerospace developments which have been utilized by the automotive industry are related to electronic design, computer systems, quality control experience, a NASA combustion scanner and television display, exhaust gas analyzers, and a device for suppressing noise propagated through ducts. Projects undertaken by NASA's center for propulsion and power research are examined with respect to their value for the automotive industry. As a result of some of these projects, a gas turbine engine and a Stirling engine might each become a possible alternative to the conventional spark ignition engine.

  13. Visualization of the air flow behind the automotive benchmark vent

    Science.gov (United States)

    Pech, Ondrej; Jedelsky, Jan; Caletka, Petr; Jicha, Miroslav

    2015-05-01

    Passenger comfort in cars depends on appropriate function of the cabin HVAC system. A great attention is therefore paid to the effective function of automotive vents and proper formation of the flow behind the ventilation outlet. The article deals with the visualization of air flow from the automotive benchmark vent. The visualization was made for two different shapes of the inlet channel connected to the benchmark vent. The smoke visualization with the laser knife was used. The influence of the shape of the inlet channel to the airflow direction, its enlargement and position of air flow axis were investigated.

  14. Visualization of the air flow behind the automotive benchmark vent

    Directory of Open Access Journals (Sweden)

    Pech Ondrej

    2015-01-01

    Full Text Available Passenger comfort in cars depends on appropriate function of the cabin HVAC system. A great attention is therefore paid to the effective function of automotive vents and proper formation of the flow behind the ventilation outlet. The article deals with the visualization of air flow from the automotive benchmark vent. The visualization was made for two different shapes of the inlet channel connected to the benchmark vent. The smoke visualization with the laser knife was used. The influence of the shape of the inlet channel to the airflow direction, its enlargement and position of air flow axis were investigated.

  15. 高职教师绩效考核体系设计——基于AHP和Delphi Method的综合运用%Design of Performance Evaluation System of Higher Vocational School Teachers Based on the Comprehensive Application of AHP and Delphi Method

    Institute of Scientific and Technical Information of China (English)

    张星

    2007-01-01

    高职教师绩效考核的核心是教师工作业绩细化指标的设计,它的设计与教学改革相关性最大,基于AHP和Delphi Method的综合运用,从一级指标的权重看,教师科研工作业绩明显大于教学工作业绩;从二级指标看,教学研究与改革的重要性正逐步被认识;教学工作虽是衡量工作业绩的第一要素,但其内容已经丰富化,不再局限于课堂教学;教学政策的评定也更加多样化.

  16. Pedestrian recognition using automotive radar sensors

    Science.gov (United States)

    Bartsch, A.; Fitzek, F.; Rasshofer, R. H.

    2012-09-01

    The application of modern series production automotive radar sensors to pedestrian recognition is an important topic in research on future driver assistance systems. The aim of this paper is to understand the potential and limits of such sensors in pedestrian recognition. This knowledge could be used to develop next generation radar sensors with improved pedestrian recognition capabilities. A new raw radar data signal processing algorithm is proposed that allows deep insights into the object classification process. The impact of raw radar data properties can be directly observed in every layer of the classification system by avoiding machine learning and tracking. This gives information on the limiting factors of raw radar data in terms of classification decision making. To accomplish the very challenging distinction between pedestrians and static objects, five significant and stable object features from the spatial distribution and Doppler information are found. Experimental results with data from a 77 GHz automotive radar sensor show that over 95% of pedestrians can be classified correctly under optimal conditions, which is compareable to modern machine learning systems. The impact of the pedestrian's direction of movement, occlusion, antenna beam elevation angle, linear vehicle movement, and other factors are investigated and discussed. The results show that under real life conditions, radar only based pedestrian recognition is limited due to insufficient Doppler frequency and spatial resolution as well as antenna side lobe effects.

  17. Internet-Based Delphi Research: Case Based Discussion

    Science.gov (United States)

    Cole, Zachary Douglas; Donohoe, Holly M.; Stellefson, Michael L.

    2013-03-01

    The interactive capacity of the Internet offers benefits that are intimately linked with contemporary research innovation in the natural resource and environmental studies domains. However, e-research methodologies, such as the e-Delphi technique, have yet to undergo critical review. This study advances methodological discourse on the e-Delphi technique by critically assessing an e-Delphi case study. The analysis suggests that the benefits of using e-Delphi are noteworthy but the authors acknowledge that researchers are likely to face challenges that could potentially compromise research validity and reliability. To ensure that these issues are sufficiently considered when planning and designing an e-Delphi, important facets of the technique are discussed and recommendations are offered to help the environmental researcher avoid potential pitfalls associated with coordinating e-Delphi research.

  18. GB/T 21085-2007 Automotive Vehicle Certificate of Inspection

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    1.Background Automotive Vehicle Certificate of Inspection (hereinafter referred to certificate) is a statutory certificate for automotive vehicle registration in China and also an important content of consistency management of vehicle manufacturers.In order to strengthen the management of automotive vehicle manufacturers and their products,prevent stealing,smuggling and illegal assembling,crack down the illegal acts of forging and reselling and improve the efficiency of automotive vehicle registration,National Development and Reform Commission (NDRC) and MPS jointly put forward a solution that is to standardize the certificate and its content and build up information management system of certificates.The development of GB/T 21085-2007 Automotive Vehicle Certificate of Inspection was taken by the National Technical Committee of Auto Standardization (SAC/TC 114).

  19. Monitoring and Management Information System of Training Workshop on DELPHI%基于DELPHI的实训车间设备监控管理信息系统

    Institute of Scientific and Technical Information of China (English)

    黄学飞; 李兆飞

    2012-01-01

      详细介绍了实训车间设备监控管理信息系统的方案,并介绍了开发该系统所采用的关键技术,对开发类似的监控系统具有借鉴作用。%  Introduced details program of the training workshop equipment monitoring and management information systems,and the key technology used in the system. It is learned with developing a similar monitoring system.

  20. The Silicon Ministrip Detector of the DELPHI Very Forward Tracker

    CERN Document Server

    AUTHOR|(CDS)2067985

    1996-01-01

    The subject of this work is the design, test and construction of a new silicon tracking detector for the extreme forward region of the DELPHI experiment at LEP. I joined the Very Forward Tracker (VFT) Ministrip group in 1993, at a time when the upgrade of the DELPHI tracking system was proposed. My first task was to participate in the design of the ministrip detector for the VFT. This included the optimisation of the detector layout in simulations and the study of prototype detectors in the testbeam. In 1994 I became responsible for the tests and assembly' of the VFT ministrip detector at CERN. The main focus of my work was the study of the performance of a large variety of detectors in beam tests. This included the preparation of the test setup, the tests of different detectors and the analysis of the measurements. With these measurements it is possible to compare the advantages and disadvantages of various new layouts for large pitch silicon strip detectors. In particular the signal response and spatial res...

  1. 应用德尔菲法构建护理部主任胜任力评价指标体系%Development of the Competency Index System for Nursing Directors by Applying Delphi Method

    Institute of Scientific and Technical Information of China (English)

    李俐; 杨辉

    2016-01-01

    目的:构建符合我国卫生领域的护理部主任胜任力评价指标体系。方法:采用德尔菲法,对全国10个省市护理管理、护理科研、护理教育、临床护理及护理心理5个领域的30名专家针对指标的选择及权重进行两轮咨询。结果:专家权威程度系数为0.89,专家意见协调系数为0.243(P<0.01)。最终确定的护理部主任胜任力评价指标体系包含6个一级指标,26个二级指标。结论:本研究构建的护理部主任胜任力评价指标体系可以为护理部主任的选拔、培训、考核及淘汰提供科学依据。%Objective:To establish a competency index system conforms to the health field in our country for nursing directors.Method:The indicators and weights were determined by Delphi method and consulted from 30 specialists twice from 10 provinces and cities in 5 fields including nursing management,nursing research, nursing education,clinical nursing and nursing psychology.Result:Specialists’ Cr was 0.89 and coefficient of coordination was 0.243(P<0.01).The competency index system consisted 6 first-level indicators and 26 second-level indicators.Conclusion:The competency index system for nursing directors can provide a scientific basis for nursing directors’ selection,training, assessment and elimination.

  2. A Delphi forecast of technology in education

    Science.gov (United States)

    Robinson, B. E.

    1973-01-01

    The results are reported of a Delphi forecast of the utilization and social impacts of large-scale educational telecommunications technology. The focus is on both forecasting methodology and educational technology. The various methods of forecasting used by futurists are analyzed from the perspective of the most appropriate method for a prognosticator of educational technology, and review and critical analysis are presented of previous forecasts and studies. Graphic responses, summarized comments, and a scenario of education in 1990 are presented.

  3. Developments on jet reconstruction by DELPHI

    CERN Document Server

    Kiskinen, A

    2002-01-01

    The most relevant techniques used by DELPHI to identify jets in multihadronic final states are reviewed. The performance of jet reconstruction algorithms is analysed together with the additional use of energy and momentum conservation in order to allow for a precise reconstruction of the event kinematics. Also jet flavour tagging methods are summarised. Applications in some analyses like searches for new particles such as Higgs bosons, W mass physics and QCD studies are presented. (9 refs).

  4. A Delphi exercise to refine the WHO three-point disability grading system for leprosy, and to develop guidelines to promote greater accuracy and reliability of WHO disability recording.

    Science.gov (United States)

    Cross, Hugh

    2014-03-01

    A Delphi Exercise was undertaken with two objectives: (1) To ascertain whether operational definitions for WHO Disability Grading could be formulated by consensus. (2) To develop a set of simple guidelines based on those definitions for the guidance of health workers. Fifteen people with general expertise in prevention of disability due to leprosy were invited to participate as Delphi panel members, twelve responded positively. Eight issues that commonly cause confusion provided foci for the exercise. Operational definitions aimed at resolving those issues were developed by consensus. Simple guidelines for health workers, based on those definitions were also created and supported by consensus. This paper presents the process followed and the outcomes gained from the endeavour.

  5. [Application of Delphi method in traditional Chinese medicine clinical research].

    Science.gov (United States)

    Bi, Ying-fei; Mao, Jing-yuan

    2012-03-01

    In recent years, Delphi method has been widely applied in traditional Chinese medicine (TCM) clinical research. This article analyzed the present application situation of Delphi method in TCM clinical research, and discussed some problems presented in the choice of evaluation method, classification of observation indexes and selection of survey items. On the basis of present application of Delphi method, the author analyzed the method on questionnaire making, selection of experts, evaluation of observation indexes and selection of survey items. Furthermore, the author summarized the steps of application of Delphi method in TCM clinical research.

  6. DELPHI有机共轭体系MM力场的优化和应用%The Optimization and Application of DELPHI Molecular Mechanics Force Field for Organic Conjugated System

    Institute of Scientific and Technical Information of China (English)

    贡雪东; 肖鹤鸣; Bastiaan Van de Graaf

    1997-01-01

    运用我们建议的SC-HMO方法优化了有机共轭烯烃的DELPHI MM力场.将优化所得力场和参数用于计算各类型101个共轭化合物的分子几何构型、生成热、偶极矩和IR频率等,结果可与MM3法相比.

  7. Support and promoter effects in automotive exhaust catalysis

    NARCIS (Netherlands)

    Lepage, M.

    2009-01-01

    Automotive catalysis being a mature technology, it can only be improved by the introduction of new breakthroughs. The ideas generating these technical advances in material science can be found thanks to the synthesis and study of model systems with controlled geometries, compositions, interactions a

  8. Design and Test of an Automotive Clutch Actuation

    OpenAIRE

    Meloni, Michele

    2012-01-01

    This thesis builds on the analysis of a automatic system for automotive automatic clutches. In this field of study there are some constraint to take into account and through them it is possible to find the best technological solution. The system under consideration is characterized as electromechanical, with an electric motor brush DC and reduction system very complex. The system was modeled using the Bond-Graph technique which allowed the drafting of the dynamical system equations, in state ...

  9. 基于CAN/LIN总线的智能车身控制系统设计%Design of Intelligent Automotive Control System Based on CAN/LIN Bus

    Institute of Scientific and Technical Information of China (English)

    郭峰; 赵璇; 汪颖

    2011-01-01

    Aiming at many kinds of shortcomings existed in current automotive control system,a hybrid network control system based on CAN/LIN bus was designed. The MCP2551, MCP201 were used as CAN/LIN bus transceiver, respectively. MC9S12XDG128 as the gateway makes CAN/LIN network interactive communication possible. In addition,the combination switch module signals were transported via LIN bus to achieve the bus and modular of the automotive control system. Finally,taking the practical application demands of an ODM into account,low power consumption and system fault diagnosis were designed and the security of the system is high.%针对目前集中式车身控制系统的不足,设计了一种基于CAN/LIN总线混合网络的车身控制系统.将MCP2551、MCP201分别作为CAN/LIN总线的收发器,以MC9S12XDG128作为主控芯片实现网关控制功能,通过该网关实现CAN/LIN网络通信交互.另外对组合开关模块信号采用LIN总线传输,实现车身控制系统的总线化、模块化.并结合某主机厂实际应用需求,对系统进行低功耗和故障自诊断设计,构建了一套安全性较高的车身网络控制系统.

  10. Upgrading the Center for Lightweighting Automotive Materials and Processing - a GATE Center of Excellence at the University of Michigan-Dearborn

    Energy Technology Data Exchange (ETDEWEB)

    Mallick, P. K.

    2012-08-30

    The Center for Lightweighting Materials and Processing (CLAMP) was established in September 1998 with a grant from the Department of Energy’s Graduate Automotive Technology Education (GATE) program. The center received the second round of GATE grant in 2005 under the title “Upgrading the Center for Lightweighting Automotive Materials and Processing”. Using the two grants, the Center has successfully created 10 graduate level courses on lightweight automotive materials, integrated them into master’s and PhD programs in Automotive Systems Engineering, and offered them regularly to the graduate students in the program. In addition, the Center has created a web-based lightweight automotive materials database, conducted research on lightweight automotive materials and organized seminars/symposia on lightweight automotive materials for both academia and industry. The faculty involved with the Center has conducted research on a variety of topics related to design, testing, characterization and processing of lightweight materials for automotive applications and have received numerous research grants from automotive companies and government agencies to support their research. The materials considered included advanced steels, light alloys (aluminum, magnesium and titanium) and fiber reinforced polymer composites. In some of these research projects, CLAMP faculty have collaborated with industry partners and students have used the research facilities at industry locations. The specific objectives of the project during the current funding period (2005 – 2012) were as follows: (1) develop new graduate courses and incorporate them in the automotive systems engineering curriculum (2) improve and update two existing courses on automotive materials and processing (3) upgrade the laboratory facilities used by graduate students to conduct research (4) expand the Lightweight Automotive Materials Database to include additional materials, design case studies and make it more

  11. Recycling used automotive oil filters

    Science.gov (United States)

    Peaslee, Kent D.

    1994-02-01

    Over 400 million used automotive oil filters are discarded in the United States each year, most of which are disposed of in landfills wasting valuable resources and risking contamination of ground- and surface-water supplies. This article summarizes U.S. bureau of Mines research evaluating scrap prepared from used automotive oil filters. Experimental results show that crushed and drained oil filters have a bulk density that is higher than many typical scrap grades, a chemical analysis low in residual elements (except tin due to use of tin plate in filters), and an overall yield, oil-filter scrap to cast steel, of 76% to 85%, depending on the method used to prepare the scrap.

  12. GLOBAL PERSPECTIVES IN AUTOMOTIVE INDUSTRY

    Directory of Open Access Journals (Sweden)

    NICOLETA ISAC

    2010-01-01

    Full Text Available The automotive sector is characterised by a relatively low trade/salesratio. While the production of most automotive producers in the world is spread over variouscountries in the value chain, the brands are still considered to reflect some national identity.Internationalisation strategies may change over the lifecycle of the product and automakerstend to pursue diametrically opposed strategies. In mature markets, it is about managing whatgoes on beneath a static surface; in emerging markets’ dynamic environments, companies muststrategically position themselves to benefit from growth opportunities. However, without theright strategy and execution in mature markets, it is clear that traditional OEMs cannot profitfrom emerging markets-the persistence of structural issues in mature market operationseventually will rob all but the most resilient competitors of the opportunity to compete inemerging markets.

  13. Feasibility Study of the Ø5 Tube-and-fin Heat Exchanger in Automotive Heat Pump System%车用热泵用小管径管片式换热器性能研究

    Institute of Scientific and Technical Information of China (English)

    韦伟; 赵宇; 陈江平; 宋吉; 高屹峰

    2013-01-01

      目前车用空调冷凝器均为平行流冷凝器,作为热泵蒸发器时易结霜,且化霜时排水不畅.而圆管翅片换热器换热性能较差,难以满足结构布置要求.开发了Ø5管径的小管径换热器,与平行流换热器进行了性能对比测试.结果表明:采用小管径管片式换热器时,制冷模式下COP提高了17.4%~23.7%,热泵模式下COP提高12.6%~35.8%,且在热泵模式下可降低压缩机排气温度15~28℃.小管径管片式换热器在电动汽车热泵系统应用前景广阔.%The parallel flow microchannel (PFM) heat exchanger is widely used in automotive air conditioning system, but it has the disadvantage of easy-frost and difficult in water-drain in defrost . The traditional tube and fin heat exchanger can overcome the frost and defrost problem but has low efficiency. In this paper a Ø5 tube and fin heat exchanger is developed for the automotive heat pump. Performances of small diameter tube-and-fin heat exchanger and PFM heat exchanger are compared based on benchmark test. Results show that the system with small diameter tube-and-fin heat exchanger has 17.4%~23.7% higher COP in air conditioning mode, 12.6%~35.8% higher COP and 15~28℃ lower compressor discharge temperature in heat pump mode, which indicates that small diameter tube-and-fin heat exchanger is a promising solution to the automotive heat pump system of electric vehicle.

  14. Graduate Automotive Technology Education (GATE) Center

    Energy Technology Data Exchange (ETDEWEB)

    Jeffrey Hodgson; David Irick

    2005-09-30

    The Graduate Automotive Technology Education (GATE) Center at the University of Tennessee, Knoxville has completed its sixth year of operation. During this period the Center has involved thirteen GATE Fellows and ten GATE Research Assistants in preparing them to contribute to advanced automotive technologies in the center's focus area: hybrid drive trains and control systems. Eighteen GATE students have graduated, and three have completed their course work requirements. Nine faculty members from three departments in the College of Engineering have been involved in the GATE Center. In addition to the impact that the Center has had on the students and faculty involved, the presence of the center has led to the acquisition of resources that probably would not have been obtained if the GATE Center had not existed. Significant industry interaction such as internships, equipment donations, and support for GATE students has been realized. The value of the total resources brought to the university (including related research contracts) exceeds $4,000,000. Problem areas are discussed in the hope that future activities may benefit from the operation of the current program.

  15. Rejuvenation of automotive fuel cells

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Yu Seung; Langlois, David A.

    2016-08-23

    A process for rejuvenating fuel cells has been demonstrated to improve the performance of polymer exchange membrane fuel cells with platinum/ionomer electrodes. The process involves dehydrating a fuel cell and exposing at least the cathode of the fuel cell to dry gas (nitrogen, for example) at a temperature higher than the operating temperature of the fuel cell. The process may be used to prolong the operating lifetime of an automotive fuel cell.

  16. On Ugliness and the Automotive

    DEFF Research Database (Denmark)

    Herriott, Richard

    2016-01-01

    The function of this essay is to to see what consequences a consideration of ugliness in automotive styling has for the theories of three writers on aesthetics in design: David Pye, Roger Scruton and Ralf Weber. As such, the concepts of beauty and ugliness will be treated in brief before moving...... on to look at an outline of the three aesthetic theories in relation to car design....

  17. Dow Corning photonics: the silicon advantage in automotive photonics

    Science.gov (United States)

    Clapp, Terry V.; Paquet, Rene; Norris, Ann; Pettersen, Babette

    2005-02-01

    The Automotive Market offers several opportunities for Dow Corning to leverage the power of silicon-based materials. Dow Corning Photonics Solutions has a number of developments that may be attractive for the emergent photonics needs in automobiles, building on 40 years of experience as a leading Automotive supplier with a strong foundation of expertise and an extensive product offering- from encapsulents and highly reliable resins, adhesives, insulating materials and other products, ensuring that the advantage of silicones are already well-embedded in Automotive systems, modules and components. The recent development of LED encapsulants of exceptional clarity and stability has extended the potential for Dow Corning"s strength in Photonics to be deployed "in-car". Demonstration of board-level and back-plane solutions utilising siloxane waveguide technology offers new opportunities for systems designers to integrate optical components at low cost on diverse substrates. Coupled with work on simple waveguide technology for sensors and data communications applications this suite of materials and technology offerings is very potent in this sector. The harsh environment under hood and the very extreme thermal range that materials must sustain in vehicles due to both their engine and the climate is an applications specification that defines the siloxane advantage. For these passive optics applications the siloxanes very high clarity at the data-communications wavelengths coupled with extraordinary stability offers significant design advantage. The future development of Head-Up-Displays for instrumentation and data display will offer yet more opportunities to the siloxanes in Automotive Photonics.

  18. 汽车排气系统用超纯铁素体不锈钢的焊接%Welding of Ultra-pure Ferrite Stainless Steel for Automotive Exhaust System

    Institute of Scientific and Technical Information of China (English)

    薛春霞; 朱云龙

    2012-01-01

    分析了超纯铁素体不锈钢的焊接性,概括了汽车排气系统不锈钢管常用的焊接方法和焊接工艺.分析认为,超纯铁素体不锈钢焊接时的主要问题是焊接接头易产生晶间腐蚀和脆化,用超纯铁素体不锈钢制造汽车排气管,需要选择能量集中、热输入小、保护效果好的焊接方法和焊接参数.主要焊接方法有钨极氩弧焊、激光焊、高频焊和等离子弧焊.此外,组合焊接技术尤其是激光与其他热源复合加热的铁素体不锈钢管焊接研究等,是汽车排气管先进焊接方法的发展方向.%In this article, the weldability of ultra-pure ferrite stainless steel was analyzed, the welding methods and technologies which were commonly used on the stainless steel pipes for automotive exhaust system were summarized. The results indicated that the main problems which appear in welding of ultra-pure ferrite stainless steel are the intercrystalline corrosion and embrittlement in the welded joints. It should select some welding methods and welding parameters with the characteristics of energy concentration, low-heat input and good protective effect, such as argon tungsten arc welding, laser welding, high frequency welding and plasma arc welding to produce automotive exhaust system using ultra-pure ferrite stainless steel. In addition, the composite welding technologies are the developing direction of advanced welding methods used for automotive exhaust pipes, especially for the research on compound heating welding ferrite stainless steel pipes by laser and other heat sources.

  19. Using the Delphi Technique to Support Curriculum Development

    Science.gov (United States)

    Sitlington, Helen Barbara; Coetzer, Alan John

    2015-01-01

    Purpose: The purpose of this paper is to present an analysis of the use of the Delphi technique to support curriculum development with a view to enhancing existing literature on use of the technique for renewal of business course curricula. Design/methodology/approach: The authors outline the Delphi process for obtaining consensus amongst a…

  20. Personal Learning Environments and University Teacher Roles Explored Using Delphi

    Science.gov (United States)

    Shaikh, Zaffar Ahmed; Khoja, Shakeel Ahmed

    2014-01-01

    This paper presents the results of research using an online Delphi method, which aimed to explore university teacher roles and readiness for learner-centred pedagogy, driven by personal learning environments (PLEs). Using a modified Policy Delphi technique, a group of researchers worked with 34 international experts who are university teachers by…

  1. Reference Materials in LIS Instruction: A Delphi Study

    Science.gov (United States)

    Rabina, Debbie

    2013-01-01

    This paper presents the results of a Delphi study conducted over a two-month period in 2011. The purpose of the study was to identify reference sources that should be covered in basic reference courses taught in LIS programs in the United States. The Delphi method was selected for its appropriateness in soliciting expert opinions and assessing the…

  2. [What is the Delphi method? Strengths and shortcomings].

    Science.gov (United States)

    Ciałkowska, Magdalena; Adamowski, Tomasz; Piotrowski, Patryk; Kiejna, Andrzej

    2008-01-01

    This article provides a condensed discussion and explanation of the Delphi method. This technique is used for problem solving and decision making. The Delphi Method was originally developed during the cold war by the U.S. Intelligence think tank, the RAND Corporation, Santa Monica, California in the 1950's and 1960's. It was designed for use on complex or ambiguous problems that exceed the capabilities of a single person. Most researchers make distinctions between the conventional Delphi and the policy Delphi. The last decades have seen increasing interest in the use of Delphi in a wide range of health-care applications. The Delphi method has been applied in a wide range of European Commission funded research projects, e.g. in EUNOMIA and DEMoB.inc projects. The Delphi method is characterized by the following features: anonymity of responses from panel experts, asynchronicity, controlled feedback and statistical description of responses. The objective of most Delphi applications is the reliable and creative exploration of problems or the production of suitable information for decision making.

  3. Personal Learning Environments and University Teacher Roles Explored Using Delphi

    Science.gov (United States)

    Shaikh, Zaffar Ahmed; Khoja, Shakeel Ahmed

    2014-01-01

    This paper presents the results of research using an online Delphi method, which aimed to explore university teacher roles and readiness for learner-centred pedagogy, driven by personal learning environments (PLEs). Using a modified Policy Delphi technique, a group of researchers worked with 34 international experts who are university teachers by…

  4. Consensus definition of fetal growth restriction : a Delphi procedure

    NARCIS (Netherlands)

    Gordijn, S. J.; Beune, I. M.; Thilaganathan, B.; Papageorghiou, A.; Baschat, A. A.; Baker, P. N.; Silver, R. M.; Wynia, K.; Ganzevoort, W.

    2016-01-01

    Objective To determine, by expert consensus, a definition for early and late fetal growth restriction (FGR) through a Delphi procedure. Method A Delphi survey was conducted among an international panel of experts on FGR. Panel members were provided with 18 literature-based parameters for defining FG

  5. Career and Technical Education at a Crossroads: A Delphi Study

    Science.gov (United States)

    Cutright, Michael W.

    2011-01-01

    Career and technical education in the United States has reached a critical juncture. A three round Delphi method was used to determine a consensus on the future events of career and technical education to better inform educational decision makers. Forty-one individual experts in the field were invited to serve as panelists for the Delphi study and…

  6. Using the Delphi Technique to Support Curriculum Development

    Science.gov (United States)

    Sitlington, Helen Barbara; Coetzer, Alan John

    2015-01-01

    Purpose: The purpose of this paper is to present an analysis of the use of the Delphi technique to support curriculum development with a view to enhancing existing literature on use of the technique for renewal of business course curricula. Design/methodology/approach: The authors outline the Delphi process for obtaining consensus amongst a…

  7. Design and analysis of automotive carbon fiber composite bumper beam based on finite element analysis

    National Research Council Canada - National Science Library

    Tie Wang; Yonggang Li

    2015-01-01

    In this article, the most important part of the automotive front bumper system, namely, the bumper beam, is studied by changing the material and thickness to improve the crashworthiness performance...

  8. AUTOMOTIVE DIESEL MAINTENANCE 1. UNIT XIII, I--MAINTAINING THE FUEL SYSTEM (PART III), CUMMINS DIESEL ENGINES, II--RADIATOR SHUTTER SYSTEM.

    Science.gov (United States)

    Human Engineering Inst., Cleveland, OH.

    THIS MODULE OF A 30-MODULE COURSE IS DESIGNED TO DEVELOP AN UNDERSTANDING OF THE CONSTRUCTION, OPERATION, AND MAINTENANCE OF THE DIESEL ENGINE FUEL AND RADIATOR SHUTTER SYSTEMS. TOPICS ARE (1) MORE ABOUT THE CUMMINS FUEL SYSTEM, (2) CALIBRATING THE PT FUEL PUMP, (3) CALIBRATING THE FUEL INJECTORS, (4) UNDERSTANDING THE SHUTTER SYSTEM, (5) THE…

  9. AUTOMOTIVE DIESEL MAINTENANCE 1. UNIT XXIII, I--MAINTAINING THE FUEL SYSTEM, PART II--CATERPILLAR DIESEL ENGINE, II--UNDERSTANDING STEERING SYSTEMS.

    Science.gov (United States)

    Minnesota State Dept. of Education, St. Paul. Div. of Vocational and Technical Education.

    THIS MODULE OF A 30-MODULE COURSE IS DESIGNED TO DEVELOP AN UNDERSTANDING OF THE OPERATION AND MAINTENANCE OF THE DIESEL ENGINE FUEL INJECTION SYSTEM AND THE STEERING SYSTEM OF DIESEL POWERED VEHICLES. TOPICS ARE FUEL INJECTION SECTION, AND DESCRIPTION OF THE STEERING SYSTEM. THE MODULE CONSISTS OF A SELF-INSTRUCTIONAL BRANCH PROGRAMED TRAINING…

  10. Analysis and research of issues related to automotive anti-collision system warning/collision algorithm%汽车防碰撞预警/碰撞算法研究现状及分析

    Institute of Scientific and Technical Information of China (English)

    于广鹏; 谭德荣; 马福霞

    2014-01-01

    Automotive collision system is one of the key technology of the vehicle active safety , and collision warning/collision avoidance (CW/CA) algorithm is the core of the automotive colli‐sion system .In this paper ,several existing collision warning/algorithms are analyzed , then the accuracy of the warning algorithm is contrast and analyzed using the Berkeley model ,under the consideration of driver's driving patterns and driving characteristics .The results show that the w arning model based on the driving characteristics could satisfy the requirement of real‐time warning ,and reduce the rate of false alarm .At last ,the problems existing in the current colli‐sion/warning algorithm are analyzed .%汽车防碰撞系统是汽车主动安全的关键技术之一,而预警/碰撞(CW/CA )算法又是汽车防碰撞系统的核心。对已有的几种预警/碰撞算法进行了分析,并利用Berkeley模型对比分析了分别考虑驾驶模式和驾驶员驾驶特征情况下预警算法的准确性。结果表明,基于驾驶员驾驶特征的预警模型更能满足实时预警要求、降低虚警率。最后,分析了当前预警/碰撞算法存在的问题。

  11. Automotive HMI design and participatory user involvement: review and perspectives.

    Science.gov (United States)

    François, Mathilde; Osiurak, François; Fort, Alexandra; Crave, Philippe; Navarro, Jordan

    2017-04-01

    Automotive human-machine interface (HMI) design is facing new challenges due to the technological advances of the last decades. The design process has to be adapted in order to address human factors and road safety challenges. It is now widely accepted that user involvement in the HMI design process is valuable. However, the current form of user involvement in industry remains at the stages of concept assessment and usability tests. Moreover, the literature in other fields (e.g. information systems) promotes a broader user involvement with participatory design (i.e. the user is fully involved in the development process). This article reviews the established benefits of participatory design and reveals perspectives for automotive HMI quality improvement in a cognitive ergonomic framework. Practitioner Summary: Automotive HMI quality determines, in part, drivers' ability to perform primary driving tasks while using in-vehicle devices. User involvement in the design process is a key point to contribute to HMI quality. This article reports the potential benefits of a broad involvement from drivers to meet automotive HMI design challenges.

  12. A Versatile Mixed-Signal Pin Approach for Cost-Effective Test of Automotive ICs

    Institute of Scientific and Technical Information of China (English)

    Credence Systems Corporation

    2004-01-01

    @@ Integrated circuits (ICs) intended for increasingly sophisticated automotive applications bring unique test demands. Advanced ICs for applications such as highly integrated automatic braking system (ABS) and airbag controllers combine high voltage digital channels, significant VI demands and precise timing capability. Along with continued missioncritical reliability concerns, the trend toward higher voltage operation and increased device integration requires specialized test capabilities able to extend across the wide operating ranges found in automotive applications. Among these capabilities, automotive test requirements increasingly dictate a need for a cost-effective versatile mixed-signal pin electronics with very high data rates reaching up to 50MHz with a voltage swing of-2 V to +28 V.

  13. Cosmic multimuon bundles detected by DELPHI

    CERN Document Server

    Rídky, J

    2004-01-01

    The DELPHI detector located at LEP accelerator has been used also to measure multimuon bundles originated from cosmic ray interactions. Two subdetectors-hadron calorimeter and time projection chamber, are used for this purpose. The 1999 and 2000 data are analyzed over wide range of multiplicities. The multiplicity distribution is compared with prediction of Monte Carlo simulation based on CORSIKA/QGSJET. The Monte-Carlo does not describe the large multiplicity part of data. Even the extreme assumption on the cosmic ray composition (pure iron nuclei) hardly predicts comparable number of high-multiplicity events.

  14. b-tagging in DELPHI at LEP

    CERN Document Server

    Abdallah, J; Adam, W; Adye, T; Adzic, P; Albrecht, T; Alderweireld, T; Alemany-Fernandez, R; Allmendinger, T; Allport, P P; Almehed, S; Amaldi, Ugo; Amapane, N; Amato, S; Anashkin, E; Andreazza, A; Andringa, S; Anjos, N; Antilogus, P; Apel, W D; Arnoud, Y; Ask, S; Åsman, B; Augustin, J E; Augustinus, A; Baillon, Paul; Ballestrero, A; Bambade, P; Barbier, R; Bardin, Dimitri Yuri; Barker, G; Baroncelli, A; Bates, M; Battaglia, Marco; Baubillier, M; Becks, K H; Begalli, M; Behrmann, A; Benekos, N C; Benvenuti, Alberto C; Bérat, C; Berggren, M; Berntzon, L; Bertrand, D; Besançon, M; Besson, N; Bibby, J; Biffi, P; Bloch, D; Blom, M; Bonesini, M; Boonekamp, M; Booth, P S L; Borisov, G; Botner, O; Bouquet, B; Bowcock, T J V; Boyko, I; Bracko, M; Branchini, P; Brenner, R; Brodet, E; Brückman, P; Brunet, J M; Bugge, L; Buschmann, P; Caccia, M; Calvi, M; Camporesi, T; Canale, V; Carena, F; Castro, N; Cavallo, F R; Chabaud, V; Chapkin, M M; Charpentier, P; Checchia, P; Chierici, R; Shlyapnikov, P; Chudoba, J; Chung, S U; Cieslik, K; Collins, P; Contri, R; Cosme, G; Cossutti, F; Costa, M J; Couchot, F; Crawley, B; Crennell, D J; Cuevas-Maestro, J; D'Almagne, B; D'Hondt, J; Dalmau, J; Da Silva, T; Da Silva, W; Della Ricca, G; De Angelis, A; de Boer, Wim; De Clercq, C; De Lotto, B; De Maria, N; De Min, A; De Paula, L S; Di Ciaccio, Lucia; Dijkstra, H; Di Simone, A; Doroba, K; Drees, J; Dris, M; Eigen, G; Ekelöf, T J C; Ellert, M; Elsing, M; Espirito-Santo, M C; Fanourakis, G K; Fassouliotis, D; Feindt, M; Fernández, J; Ferrer, A; Ferro, F; Flagmeyer, U; Föth, H; Fokitis, E; Fulda-Quenzer, F; Fuster, J A; Gandelman, M; García, C; Gavillet, P; Gazis, E N; Geralis, T; Gokieli, R; Golob, B; Gómez-Cadenas, J J; Gómez-Ceballos, G; Gonçalves, P; Graziani, E; Grosdidier, G; Grzelak, K; Guy, J; Haag, C; Hallgren, A; Hamacher, K; Hamilton, K; Hansen, J; Haug, S; Hauler, F; Hedberg, V; Hennecke, M; Hernando, J A; Herr, H; Heuser, J M; Holmgren, S O; Holt, P J; Houlden, M A; Hultqvist, K; Jackson, J N; Jalocha, P; Jarlskog, C; Jarlskog, G; Jarry, P; Jeans, D; Johansson, E K; Johansson, P D; Jonsson, P; Joram, C; Jungermann, L; Kapusta, F; Karlsson, M; Katsanevas, S; Katsoufis, E C; Keränen, R; Kernel, G; Kersevan, Borut P; Kiiskinen, A P; King, B T; Kjaer, N J; Kluit, P; Kokkinias, P; Kourkoumelis, C; Kuznetsov, O; Krumshtein, Z; Kucharczyk, M; Kucewicz, W; Kurowska, J; Lamsa, J; Leder, G; Ledroit, F; Leinonen, L; Leitner, R; Lemonne, J; Lepeltier, V; Lesiak, T; Liebig, W; Liko, D; Lipniacka, A; Lopes, J H; López, J M; Loukas, D; Lutz, P; Lyons, L; MacNaughton, J; Malek, A; Maltezos, S; Mandl, F; Marco, J; Marco, R; Maréchal, B; Margoni, M; Marin, J C; Mariotti, C; Markou, A; Martínez-Rivero, C; Martínez-Vidal, F; Masik, J; Mastroyiannopoulos, N; Matorras, F; Matteuzzi, C; Mazzucato, F; Mazzucato, M; McNulty, R; Meroni, C; Meyer, W T; Migliore, E; Mitaroff, W A; Mjörnmark, U; Moa, T; Moch, M; Mönig, K; Monge, R; Montenegro, J; Moraes, D; Moreno, S; Morettini, P; Müller, U; Münich, K; Mulders, M; Mundim, L; Murray, W; Muryn, B; Myatt, Gerald; Myklebust, T; Nassiakou, M; Navarria, Francesco Luigi; Nawrocki, K; Nicolaidou, R; Niezurawski, P; Nikolenko, M; Nomerotski, A; Norman, A; Nygren, A; Oblakowska-Mucha, A; Obraztsov, V F; Olshevskii, A G; Onofre, A; Orava, Risto; Österberg, K; Ouraou, A; Oyanguren, A; Paganoni, M; Paiano, S; Palacios, J P; Palka, H; Papadopoulou, T D; Pape, L; Parkes, C; Parodi, F; Parzefall, U; Passeri, A; Passon, O; Peralta, L; Perepelitsa, V F; Perrotta, A; Petrolini, A; Piedra, J; Pieri, L; Pierre, F; Pimenta, M; Piotto, E; Podobnik, T; Poireau, V; Pol, M E; Polok, G; Poropat, P; Pozdnyakov, V; Pukhaeva, N; Pullia, Antonio; Rames, J; Ramler, L; Read, A; Rebecchi, P; Rehn, J; Reid, D; Reinhardt, R; Renton, P B; Richard, F; Rídky, J; Rivero, M; Rodríguez, D; Romero, A; Ronchese, P; Rosenberg, E I; Roudeau, Patrick; Rovelli, T; Ruhlmann-Kleider, V; Ryabtchikov, D; Sadovskii, A; Salmi, L; Salt, J; Savoy-Navarro, A; Schwickerath, U; Segar, A; Sekulin, R L; Siebel, M; Sissakian, A N; Smadja, G; Smirnova, O G; Sokolov, A; Sopczak, A; Sosnowski, R; Spassoff, Tz; Stanitzki, M; Stavitski, I; Stocchi, A; Strauss, J; Stugu, B; Szczekowski, M; Szeptycka, M; Szumlak, T; Tabarelli de Fatis, T; Taffard, A C; Tegenfeldt, F; Timmermans, J; Tinti, N; Tkatchev, L G; Tobin, M; Todorovova, S; Tomaradze, A G; Tomé, B; Tonazzo, A; Tortosa, P; Travnicek, P; Treille, D; Trischuk, W; Tristram, G; Trochimczuk, M; Troncon, C; Turluer, M L; Tyapkin, I A; Tyapkin, P; Tyndel, M; Tzamarias, S; Uvarov, V; Valenti, G; van Dam, P; Van Eldik, J; Van Lysebetten, A; Van Remortel, N; Van Vulpen, I B; Vegni, G; Veloso, F; Venus, W A; Verbeure, F; Verdier, P; Verzi, V; Vilanova, D; Vitale, L; Vrba, V; Wahlen, H; Washbrook, A J; Weilhammer, Peter; Weiser, C; Wicke, D; Wickens, J H; Wilkinson, G; Winter, M; Witek, M; Yushchenko, O P; Zalewska-Bak, A; Zalewski, Piotr; Zavrtanik, D; Zimin, N I; Zinchenko, A I; Zupan, M

    2004-01-01

    The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which relies mostly on the vertex detector. Additional information, such as the mass of particles associated to a secondary vertex, significantly improves the selection efficiency and the background suppression. The paper describes various discriminating variables used for the tagging and the procedure of their combination. In addition, applications of b-tagging to some physics analyses, which depend crucially on the performance and reliability of b-tagging, are described briefly.

  15. The Delphi Natural Language Understanding System

    Science.gov (United States)

    1994-01-01

    Categorial Grammar (Ades and Steedman, 1982), PATR-II (Shieber, 1986), and lexicalized TAG ( Schabes et al, 1988) all deal with complementation by...Analysis--A Survey of the Formalism and a Comparison with Augmented Transition Networks. In Artificial Intelligence 13, 1980, pp. 231-278. Schabes , Y

  16. The small angle tile calorimeter in the DELPHI experiment

    CERN Document Server

    Alvsvaag, S J; Barreira, G; Benvenuti, Alberto C; Bigi, M; Bonesini, M; Bozzo, M; Camporesi, T; Carling, H; Cassio, V; Castellani, L; Cereseto, R; Chignoli, F; Della Ricca, G; Dharmasiri, D R; Espirito-Santo, M C; Falk, E; Fenyuk, A; Ferrari, P; Gamba, D; Giordano, V; Guz, Yu; Guerzoni, M; Gumenyuk, S A; Hedberg, V; Jarlskog, G; Karyukhin, A N; Klovning, A; Konoplyannikov, A K; Kronkvist, I J; Lanceri, L; Leoni, R; Maeland, O A; Maio, A; Mazza, R; Migliore, E; Navarria, Francesco Luigi; Negri, P; Nossum, B; Obraztsov, V F; Onofre, A; Paganoni, M; Pegoraro, M; Peralta, L; Petrovykh, L P; Pimenta, M; Poropat, P; Prest, M; Read, A L; Romero, A; Shalanda, N A; Simonetti, L; Skaali, T B; Stugu, B; Terranova, F; Tomé, B; Torassa, E; Trapani, P P; Verardi, M G; Vallazza, E; Vlasov, E; Zaitsev, A

    1999-01-01

    The {\\bf S}mall angle {\\bf TI}le {\\bf C}alorimeter ({\\bf STIC}) provides calorimetric coverage in the very forward region of the DELPHI experiment at the CERN LEP collider. The structure of the calorimeters, built with a so-called ``shashlik'' technique, gives a perfectly hermetic calorimeter and still allows for the insertion of tracking detectors within the sampling structure to measure the direction of the showering particle. A charged-particle veto system, composed of two scintillator layers, makes it possible to trigger on single photon events and provides e-$\\gamma$ separat ion. Results are presented from the extensive studies of these detectors in the CERN testbeams prior to installation and of the detector performance at LEP.

  17. Development of nanolubricant automotive air conditioning (AAC test rig

    Directory of Open Access Journals (Sweden)

    Redhwan A.A.M.

    2017-01-01

    Full Text Available Nanolubricant been introduced in compressor might improve the performance of automotive air conditioning system. Prior testing of the nanolubricant enhancement performance, an automotive air conditioning (AAC system test rig base on compact car has to be developed; therefore this paper presented the development process of AAC test rig. There are 15 thermocouples, 2 pressure gauges and power analyzer were assembled on the system in order to analyse its performance. The experiment was conducted with four different charged of refrigerant. The charging was based on initial weight charged. At each quantity of refrigerant charge, performance of the AAC system was evaluated by determining three important parameters which is cooling capacity, compressor work and coefficient of performance (COP. The maximum average COP is achieved at 900 RPM is 7.07. The average and maximum COP enhancement of 7.07 % and 13.34 % were achieved by applying SiO2 nanolubricant inside the compressor.

  18. 20th International Forum on Advanced Microsystems for Automotive Applications

    CERN Document Server

    Müller, Beate; Meyer, Gereon

    2016-01-01

    This book contains the papers presented at the 20th anniversary edition of the AMAA conference held in Brussels, Belgium in 2016. The theme of the conference was "Smart Systems for the Automobile of the Future". The automobile is currently being reshaped at unprecedented pace. Automation and electrification are the two dominant megatrends which dramatically change the choice and design of components, systems, vehicular architectures and ultimately the way we use cars in the coming decades. Novel E/E architectures, vehicular connectivity and cloud services will be key to extending the perception and decision-making horizons of automated vehicles, to enable cooperative functions and a seamless digital user experience. The AMAA's ongoing mission to detect novel trends in automotive ICT, electronics and smart systems and to discuss the technological implications is once again reflected in this volume. The book will be a valuable read for research experts and professionals in the automotive and smart systems indus...

  19. Petroleum Marketing. Selling Automotive Products and Services.

    Science.gov (United States)

    Luter, Robert R.

    This textbook contains material for the individualized instruction of students training for careers in service stations; automotive, tire, battery, and accessory retail stores; oil jobbers and petroleum product wholesalers, or any wholesale or retail establishment that sells automotive products and services. Included among the topics addressed in…

  20. Automotive radar - investigation of mutual interference mechanisms

    Science.gov (United States)

    Goppelt, M.; Blöcher, H.-L.; Menzel, W.

    2010-09-01

    In the past mutual interference between automotive radar sensors has not been regarded as a major problem. With an increasing number of such systems, however, this topic is receiving more and more attention. The investigation of mutual interference and countermeasures is therefore one topic of the joint project "Radar on Chip for Cars" (RoCC) funded by the German Federal Ministry of Education and Research (BMBF). RoCC's goal is to pave the way for the development of high-performance, low-cost 79 GHz radar sensors based on Silicon-Germanium (SiGe) Monolithic Microwave Integrated Circuits (MMICs). This paper will present some generic interference scenarios and report on the current status of the analysis of interference mechanisms.

  1. Application of Delphi in Constructing Community Nursing Quality Evaluating System%应用德尔菲法构建社区护理质量评价指标体系

    Institute of Scientific and Technical Information of China (English)

    赵春艳; 王小芳; 胡爱忠; 屠庆; 蒋佟迎; 陈益清; 沙莎; 葛津津

    2011-01-01

    Objective To construct a community nursing quality evaluating system,and provide the evidence and strategy of high nursing quality of community health system. Methods Using Delphi method, 16 specialists with the professional titles of supervisor nurse or higher and over ten years of nursing experience on community nursing quality management were consulted in two rounds from 18 district community health centers and quality control centers in Shanghai. Results Specialists were quite active while specialists' Cr was 0. 86 and coefficient of coordination was 0.18-0. 35(P<0. 01). The community nursing quality evaluating indictors consisted 5 first-level in-dictors: nursing quality of community nursing center, nursing quality of community nursing station, contract of family doctor and nursing quality of door- to- door service,satisfaction of nursing team,and innovation of community nursing quality (the portion were 0. 51,0.15,0.19,0. 09,0. 06) ,24 second-level indicators,and 33 third-level indicators. Conclusion The specialists' activity, authority, and concentration of their opinions are quite high. Community nursing quality evaluation indicators should reflect the community nursing function (6 in 1), the regional characteristics and the concept of continued high quality service.%目的 构建社区护理质量评价指标体系,为客观评价并切实提高社区护理质量提供依据和对策.方法 采用目的抽样的方法选取上海市18个区县的社区卫生中心和质量控制中心从事护理管理工作10年以上、具有主管护师以上职称的社区护理管理专家16名作为函询对象,应用德尔菲法对社区护理质量评价指标进行2轮函询.结果 专家的权威程度(Cr)系数为0.86,专家意见协调系数为0.18~0.35(P<0.01);建立的社区护理质量评价指标包括社区护理中心护理质量、社区护理站点护理质量、家庭医生签约及上门服务护理质量、服务团队的满意率

  2. Development of Evaporative Cooling Air-Conditioning's Inquire System Based on Delphi%基于Delphi的蒸发冷却空调查询系统开发

    Institute of Scientific and Technical Information of China (English)

    蒋婧; 狄育慧

    2011-01-01

    对Delphi数据库做了简单的介绍,掌握各种控件的功能属性,进行合理的界面设计,并且创建有效地数据库数据源,通过对数据库的管理等实现用户需要的新软件。简述了蒸发冷却空调技术应用。搭建出了关于Delphi和蒸发冷却的应用平台;设计出了关于气象资料、方案选择、设备资料的用户界面;实现了气象资料的查询功能。%In this paper, a brief introduction is given about Delphi database. We know functions of various attributes, design rational interface, and create effective database data source, database management, require for new software through the implementation of user. Briefly introduce application of evaporative cooling air conditioning technology. We has been built Delphi and evaporative cooling on the application platform; design on the meteorological data, options, equipment, user interface data; implement the query function of meteorological data.

  3. Utilizing and Adapting the Delphi Method for Use in Qualitative Research

    OpenAIRE

    Shane R. Brady

    2015-01-01

    The Delphi method is a pragmatic research method created in the 1950s by researchers at the RAND Corporation for use in policy making, organizational decision making, and to inform direct practices. While the Delphi method has been regularly utilized in mixed methods studies, far fewer studies have been completed using the Delphi method for qualitative research. Despite the utility of the Delphi method in social science research, little guidance is provided for using the Delphi in the context...

  4. The NASA Electronic Parts and Packaging (NEPP) Program: NEPP Overview - Automotive Electronics

    Science.gov (United States)

    LaBel, Kenneth A.; Sampson, Michael J.

    2016-01-01

    The results of NASAs studies into the appropriateness of using U.S. Automotive electronic parts in NASA spaceflight systems will be presented. The first part of the presentation provides an overview of the United States Automotive Electronics Council's AECQ standardization program, the second part provides a summary of the results of NASA's procurement and testing experiences and other lessons learned along with preliminary test results.

  5. Is a Long Term Work in Automotive Industry a Risk Factor for Renal Dysfunction?

    OpenAIRE

    Assadi, Seyedeh Negar

    2015-01-01

    Background: Disorders of renal system can cause renal failure; therefore screening is necessary especially in workers who are exposed to harmful materials. Hypertension, diabetes mellitus, and hazardous exposures are non-occupational and occupational risk factors for renal diseases. Aim: The objective of this study was to determine the effects of working in automotive industry on renal function in Iran. Subjects and Methods: In a historical cohort study, workers of automotive industry who wor...

  6. RFID-enabled real-time manufacturing for automotive part and accessory suppliers

    OpenAIRE

    2010-01-01

    Automotive part and accessory manufacturers (APAMs) at the lower tiers of the automotive vertical have been following leading vehicle assemblers in adopting RFID (Radio Frequency Identification) and ubiquitous computing technologies, aiming to alleviate their advanced manufacturing systems. RFID-enabled real-time traceability and visibility facilitate the implementation of advanced strategies such as Just-In-Time (JIT) lean / responsive manufacturing and mass customization (MC). Being typical...

  7. Automotive electronic control units: Inspection design considering time and resources constrains.

    OpenAIRE

    Solé Genescà, Aleix

    2017-01-01

    On this this document, the state of the art about engine management system inspection will be studied during design and prototyping phase. For this reason, a deep background on automotive sector is needed. Automotive history will be reviewed from the creation of first motorized car up to completely autonomous autopilot, created by Tesla. After that, future trends such as hardware and software modularization will be reviewed. Considering cars high complexity, it is important to have a clear me...

  8. Automotive stamped part fatigue design

    Directory of Open Access Journals (Sweden)

    Caudoux Mélanie

    2014-06-01

    Full Text Available Fatigue design of automotive axle parts is of prior concern because of these are high safety parts and they are expected to drive the overall vehicle mass reduction. In this framework, the stamping process is widely used to form axle parts, before assembling them by welding. Consequently, the mechanical and physical characteristics of the blank sheet are modified, having a strong influence on the fatigue behavior. In this paper, we address the consequences of the stamped process on the fatigue design and how they may be effectively taken into account in the automotive industry. Actually, the coupling between the stamping process and the fatigue design is under development at PSA Peugeot Citroën Company since several years. Such an analysis deals with some major topics: thickness variation, plastic hardening and deformation, and residual stress. All of these ingredients result in fatigue criteria evolutions: it is important to stress that the stamping process can have advantageous or disadvantageous consequences on the fatigue design. This is here highlighted on some examples, dealing with front and rear axles.

  9. The DELPHI Silicon Tracker in the global pattern recognition

    CERN Document Server

    Elsing, M

    2000-01-01

    ALEPH and DELPHI were the first experiments operating a silicon vertex detector at LEP. During the past 10 years of data taking the DELPHI Silicon Tracker was upgraded three times to follow the different tracking requirements for LEP 1 and LEP 2 as well as to improve the tracking performance. Several steps in the development of the pattern recognition software were done in order to understand and fully exploit the silicon tracker information. This article gives an overview of the final algorithms and concepts of the track reconstruction using the Silicon Tracker in DELPHI.

  10. The analysis of experimental data obtained from automotives tests

    Science.gov (United States)

    Stoica, R. M.; Radulescu, V. J.; Neagu, D.; Trocan, C.; Copae, I.

    2016-08-01

    The paper highlights the three important and inseparably aspects of the systemic approach of automotives dynamics: taking into account the human-vehicle-field interaction, dealing movement with algorithms specific to system theory and analysis of experimental data with algorithms specific to signals theory.Within the paper, the systemic approach regarding vehicles dynamics is based on experimental data obtained from tests, whereby it is analyzed the movement and there are obtained movement mathematical models through algorithms of systems identification.Likewise, there are shown main analysis methods for experimental data, which uses probability theory, information theory, correlation analysis and variance analysis;in addition, there are highlighted possibilities given by time analysis, frequency analysis and data time-frequency analysis. Identification algorithms and highlighted analysis procedures assure the study of automotives dynamics and fuel saving,by directly using experimental data, or by using mathematical models and applying concepts and algorithms specific to systems theory. Experimental data were obtained by testing automotives with electronic control devices and by using acquisition and storage equipmentsfor data given by the on-board computer and taken from embedded sensors.

  11. Research and Design of Oil Supporting and Monitoring System of Automotive Engine Testing Bed%汽车发动机试验台供油监控系统研制

    Institute of Scientific and Technical Information of China (English)

    李志培; 姚文

    2011-01-01

    In this paper, its backgroud is the expension project, an oil supporting monitoring system of center of its own brand researching form Shanghai Automotive Group Co., Ltd. S7-300 PLC is used as the core of the system, using safety relays to implement security features. The program of PC is comleted through STEP 7 and the monitoring interface through Wince Flexible 2008. It monitors the status of the controlled object by using HMI. This system achieves the monitoring function and ensure reliable and safe operation of the system.%本文以上海汽车集团股份有限公司技术中心自主品牌研发中心扩建项目(工期工程)输油系统为背景.选用S7- 300作为控制系统的核心,以安全继电器实现系统的安全保护功能.通过STEP7对系统下位机程序进行研究与设计,使用 Wincc Flexible 2008开发上位机的监控界面,应用触摸屏实现对被控对象的控制和状态信息的监控功能.从而实现对整个输油系统的监控,保证了系统的可靠安全运行.

  12. The prospects for hybrid electric vehicles, 2005-2020 : results of a Delphi Study.

    Energy Technology Data Exchange (ETDEWEB)

    Ng, H. K.; Santini, D. J.; Vyas, A. D.

    1999-07-22

    The introduction of Toyota's hybrid electric vehicle (HEV), the Prius, in Japan has generated considerable interest in HEV technology among US automotive experts. In a follow-up survey to Argonne National Laboratory's two-stage Delphi Study on electric and hybrid electric vehicles (EVs and HEVs) during 1994-1996, Argonne researchers gathered the latest opinions of automotive experts on the future ''top-selling'' HEV attributes and costs. The experts predicted that HEVs would have a spark-ignition gasoline engine as a power plant in 2005 and a fuel cell power plant by 2020. The projected 2020 fuel shares were about equal for gasoline and hydrogen, with methanol a distant third. In 2020, HEVs are predicted to have series-drive, moderate battery-alone range and cost significantly more than conventional vehicles (CVs). The HEV is projected to cost 66% more than a $20,000 CV initially and 33% more by 2020. Survey respondents view batteries as the component that contributes the most to the HEV cost increment. The mean projection for battery-alone range is 49 km in 2005, 70 km in 2010, and 92 km in 2020. Responding to a question relating to their personal vision of the most desirable HEV and its likely characteristics when introduced in the US market in the next decade, the experts predicted their ''vision'' HEV to have attributes very similar to those of the ''top-selling'' HEV. However, the ''vision'' HEV would cost significantly less. The experts projected attributes of three leading batteries for HEVs and projected acceleration times on battery power alone. The resulting battery packs are evaluated, and their initial and replacement costs are analyzed. These and several other opinions are summarized.

  13. 4th International Conference on Sustainable Automotive Technologies

    CERN Document Server

    Wellnitz, Jörg; Leary, Martin; Koopmans, Lucien

    2012-01-01

    The book on Sustainable Automotive Technologies aims to draw special attention to the research and practice focused on new technologies and approaches capable of meeting the challenges to sustainable mobility. In particular, the book features incremental and radical technical advancements that are able to meet social, economic and environmental targets in both local and global contexts. These include original solutions to the problems of pollution and congestion, vehicle and public safety, sustainable vehicle design and manufacture, new structures and materials, new power-train technologies and vehicle concepts. In addition to vehicle technologies, the book is also concerned with the broader systemic issues such as sustainable supply chain systems, integrated logistics and telematics, and end-of-life vehicle management. It captures selected peer reviewed papers accepted for presentation at the 4th International Conference on Sustainable Automotive Technologies, ICSAT2012, held at the RMIT, Melbourne, Australi...

  14. 基于德尔菲法的儿童鞋安全性评价指标体系%Safety assessment index system for kids' shoes by Delphi method

    Institute of Scientific and Technical Information of China (English)

    孟凯宁; 冯雨果; 徐波; 周晋

    2016-01-01

    15 experts were recruited and they were consulted for two rounds with the Delphi method.The positive coefficient, expert coordination degree and extent of authority were calculated for the reliability analysis of the index.Safety assessment index was constructed by the boundary-value method.Results show that sensitivities factors such as active coefficient, coordination coefficient and authoritative coefficient are recorded to be high.A set of gradated children's safety shoes evaluation index is constructed including 3 first-level indexes, 7 second-level indexes and 15 third-level indexes.According to this study, a safety assessment index for kids' shoes is built.It indicates that Delphi method is a feasible approach for the index building;and our safety assessment index for kids' shoes will provide a reference for the implementation and evaluation of children's safety shoes.%首先采用Delphi(德尔菲)法对15名专家进行2轮问卷调查,然后对专家积极系数、意见协调程度以及权威程度进行分析,最后在充分考虑专家建议基础上,运用界值法筛选评价指标,构建一套包括3项一级指标,7项二级指标和15项三级指标的儿童鞋安全性评价指标体系.研究结果显示,专家积极系数和权威系数较高,专家意见协调程度较好.由此得出结论,德尔菲法应用于儿童鞋安全性指标体系的研究是可行的,该方法丰富了儿童鞋安全性评价指标,为相关研究提供借鉴和参考.

  15. Automotive radar – investigation of mutual interference mechanisms

    OpenAIRE

    2010-01-01

    In the past mutual interference between automotive radar sensors has not been regarded as a major problem. With an increasing number of such systems, however, this topic is receiving more and more attention. The investigation of mutual interference and countermeasures is therefore one topic of the joint project "Radar on Chip for Cars" (RoCC) funded by the German Federal Ministry of Education and Research (BMBF). RoCC's goal is to pave the way for the development of high-per...

  16. Performance Management Analytics for the Automotive Industry: An Empirical Study

    OpenAIRE

    João Carlos Dias Correia Pinto

    2016-01-01

    The automotive industry is permanently collecting data about the business that is then used to calculate high level Key Performance Indicators (KPI) that are organized on a Performance Management System (PMS) to help on the decision making process. However, these KPIs represent uniquely the past. The business, in order to be proactive "i.e." create the future, must predict how it will be. Using Data Mining, Machine Learning, Statistics and Artificial Intelligence tis project creates and compa...

  17. An Analysis of Factors that Inhibit Business Use of User-Centered Design Principles: A Delphi Study

    Science.gov (United States)

    Hilton, Tod M.

    2010-01-01

    The use of user-centered design (UCD) principles has a positive impact on the use of web-based interactive systems in customer-centric organizations. User-centered design methodologies are not widely adopted in organizations due to intraorganizational factors. A qualitative study using a modified Delphi technique was used to identify the factors…

  18. Determining the most important factors for sustainable energy technology selection in Africa: application of the Delphi technique

    CSIR Research Space (South Africa)

    Barry, M-L

    2008-04-01

    Full Text Available into account when identifying the most sustainable technological systems in the African context. The study utilised the Delphi technique. The questionnaire of the first round was based on factors identified during a focus group exercise with energy experts...

  19. Prospects for MEMS in the Automotive Industry

    Directory of Open Access Journals (Sweden)

    Richard DIXON

    2007-12-01

    Full Text Available An automotive sector as a growth market for MEMS sensors is analyzed in the article. The automotive sector accounted for $1.6 billion, making this the second biggest opportunity after IT peripherals and inkjet print heads. By 2011 the market will top $2.2 billion, a CAGR of around 7%. The main applications in revenues terms are, in order, pressure sensors, gyroscopes, accelerometers and flow sensors and this will remain so for the foreseeable future. Automotive companies are forced to innovate as a result of competition and price pressures.

  20. Evaluation of Nine Consensus Indices in Delphi Foresight Research and Their Dependency on Delphi Survey Characteristics: A Simulation Study and Debate on Delphi Design and Interpretation

    Science.gov (United States)

    Birko, Stanislav; Dove, Edward S.; Özdemir, Vural

    2015-01-01

    The extent of consensus (or the lack thereof) among experts in emerging fields of innovation can serve as antecedents of scientific, societal, investor and stakeholder synergy or conflict. Naturally, how we measure consensus is of great importance to science and technology strategic foresight. The Delphi methodology is a widely used anonymous survey technique to evaluate consensus among a panel of experts. Surprisingly, there is little guidance on how indices of consensus can be influenced by parameters of the Delphi survey itself. We simulated a classic three-round Delphi survey building on the concept of clustered consensus/dissensus. We evaluated three study characteristics that are pertinent for design of Delphi foresight research: (1) the number of survey questions, (2) the sample size, and (3) the extent to which experts conform to group opinion (the Group Conformity Index) in a Delphi study. Their impacts on the following nine Delphi consensus indices were then examined in 1000 simulations: Clustered Mode, Clustered Pairwise Agreement, Conger’s Kappa, De Moivre index, Extremities Version of the Clustered Pairwise Agreement, Fleiss’ Kappa, Mode, the Interquartile Range and Pairwise Agreement. The dependency of a consensus index on the Delphi survey characteristics was expressed from 0.000 (no dependency) to 1.000 (full dependency). The number of questions (range: 6 to 40) in a survey did not have a notable impact whereby the dependency values remained below 0.030. The variation in sample size (range: 6 to 50) displayed the top three impacts for the Interquartile Range, the Clustered Mode and the Mode (dependency = 0.396, 0.130, 0.116, respectively). The Group Conformity Index, a construct akin to measuring stubbornness/flexibility of experts’ opinions, greatly impacted all nine Delphi consensus indices (dependency = 0.200 to 0.504), except the Extremity CPWA and the Interquartile Range that were impacted only beyond the first decimal point (dependency

  1. Evaluation of Nine Consensus Indices in Delphi Foresight Research and Their Dependency on Delphi Survey Characteristics: A Simulation Study and Debate on Delphi Design and Interpretation.

    Science.gov (United States)

    Birko, Stanislav; Dove, Edward S; Özdemir, Vural

    2015-01-01

    The extent of consensus (or the lack thereof) among experts in emerging fields of innovation can serve as antecedents of scientific, societal, investor and stakeholder synergy or conflict. Naturally, how we measure consensus is of great importance to science and technology strategic foresight. The Delphi methodology is a widely used anonymous survey technique to evaluate consensus among a panel of experts. Surprisingly, there is little guidance on how indices of consensus can be influenced by parameters of the Delphi survey itself. We simulated a classic three-round Delphi survey building on the concept of clustered consensus/dissensus. We evaluated three study characteristics that are pertinent for design of Delphi foresight research: (1) the number of survey questions, (2) the sample size, and (3) the extent to which experts conform to group opinion (the Group Conformity Index) in a Delphi study. Their impacts on the following nine Delphi consensus indices were then examined in 1000 simulations: Clustered Mode, Clustered Pairwise Agreement, Conger's Kappa, De Moivre index, Extremities Version of the Clustered Pairwise Agreement, Fleiss' Kappa, Mode, the Interquartile Range and Pairwise Agreement. The dependency of a consensus index on the Delphi survey characteristics was expressed from 0.000 (no dependency) to 1.000 (full dependency). The number of questions (range: 6 to 40) in a survey did not have a notable impact whereby the dependency values remained below 0.030. The variation in sample size (range: 6 to 50) displayed the top three impacts for the Interquartile Range, the Clustered Mode and the Mode (dependency = 0.396, 0.130, 0.116, respectively). The Group Conformity Index, a construct akin to measuring stubbornness/flexibility of experts' opinions, greatly impacted all nine Delphi consensus indices (dependency = 0.200 to 0.504), except the Extremity CPWA and the Interquartile Range that were impacted only beyond the first decimal point (dependency = 0

  2. Evaluation of Nine Consensus Indices in Delphi Foresight Research and Their Dependency on Delphi Survey Characteristics: A Simulation Study and Debate on Delphi Design and Interpretation.

    Directory of Open Access Journals (Sweden)

    Stanislav Birko

    Full Text Available The extent of consensus (or the lack thereof among experts in emerging fields of innovation can serve as antecedents of scientific, societal, investor and stakeholder synergy or conflict. Naturally, how we measure consensus is of great importance to science and technology strategic foresight. The Delphi methodology is a widely used anonymous survey technique to evaluate consensus among a panel of experts. Surprisingly, there is little guidance on how indices of consensus can be influenced by parameters of the Delphi survey itself. We simulated a classic three-round Delphi survey building on the concept of clustered consensus/dissensus. We evaluated three study characteristics that are pertinent for design of Delphi foresight research: (1 the number of survey questions, (2 the sample size, and (3 the extent to which experts conform to group opinion (the Group Conformity Index in a Delphi study. Their impacts on the following nine Delphi consensus indices were then examined in 1000 simulations: Clustered Mode, Clustered Pairwise Agreement, Conger's Kappa, De Moivre index, Extremities Version of the Clustered Pairwise Agreement, Fleiss' Kappa, Mode, the Interquartile Range and Pairwise Agreement. The dependency of a consensus index on the Delphi survey characteristics was expressed from 0.000 (no dependency to 1.000 (full dependency. The number of questions (range: 6 to 40 in a survey did not have a notable impact whereby the dependency values remained below 0.030. The variation in sample size (range: 6 to 50 displayed the top three impacts for the Interquartile Range, the Clustered Mode and the Mode (dependency = 0.396, 0.130, 0.116, respectively. The Group Conformity Index, a construct akin to measuring stubbornness/flexibility of experts' opinions, greatly impacted all nine Delphi consensus indices (dependency = 0.200 to 0.504, except the Extremity CPWA and the Interquartile Range that were impacted only beyond the first decimal point

  3. DELPHI TECHNIQUE: ENHANCING RESEARCH IN TECHNICAL AND VOCATIONAL EDUCATION

    Directory of Open Access Journals (Sweden)

    Irdayanti Mat Nashir

    2015-12-01

    Full Text Available Empirical studies conducted within the Technical and Vocational Education (TVE discipline in Malaysia tends to give greater emphasis to quantitative data collection techniques. Aware of the potential usefulness of combination of techniques, this paper discusses the application of the Delphi technique where qualitative and quantitative data collection techniques are used to reach useful results. The Delphi technique provides the opportunity for researchers to gather input from participants without requiring them to work face-to-face. Often, the process is used to find consensus among experts who have differing views and perspectives. The Delphi technique enables group problem-solving using an iterative process of problem definition, discussion, feedback, and revisions.This paper discusses the basics of the Delphi techniques, its application potential, the selection of expert panels and the means on how consensus can be reached among the participants using examples from our past research using the technique.

  4. Using the Delphi Method for Qualitative, Participatory Action Research in Health Leadership

    Directory of Open Access Journals (Sweden)

    Amber J. Fletcher PhD

    2014-02-01

    Full Text Available Current pressures on public health systems have led to increased emphasis on restructuring, which is seen as a potential solution to crises of accessibility, quality, and funding. Leadership is an important factor in the success or failure of these initiatives. Despite its importance, health leadership evades easy articulation, and its study requires a thoughtful methodological approach. We used a modified Delphi method in a Participatory Action Research (PAR project on health leadership in Canada. Little has been written about the combination of Delphi method with PAR. We offer a rationale for the combination and describe its usefulness in researching the role of leadership in a restructuring initiative in “real time” with the participation of health system decision makers. Recommendations are provided to researchers wishing to use the Delphi method qualitatively (i.e., without statistical consensus in a PAR framework while protecting the confidentiality of participants who work at different levels of authority. We propose a modification of Kaiser's (2009 post-interview confidentiality form to address power differentials between participants and to enhance confidentiality in the PAR process.

  5. Developing consensus-based policy solutions for medicines adherence for Europe: a delphi study

    Directory of Open Access Journals (Sweden)

    Clyne Wendy

    2012-11-01

    Full Text Available Abstract Background Non-adherence to prescribed medication is a pervasive problem that can incur serious effects on patients’ health outcomes and well-being, and the availability of resources in healthcare systems. This study aimed to develop practical consensus-based policy solutions to address medicines non-adherence for Europe. Methods A four-round Delphi study was conducted. The Delphi Expert Panel comprised 50 participants from 14 countries and was representative of: patient/carers organisations; healthcare providers and professionals; commissioners and policy makers; academics; and industry representatives. Participants engaged in the study remotely, anonymously and electronically. Participants were invited to respond to open questions about the causes, consequences and solutions to medicines non-adherence. Subsequent rounds refined responses, and sought ratings of the relative importance, and operational and political feasibility of each potential solution to medicines non-adherence. Feedback of individual and group responses was provided to participants after each round. Members of the Delphi Expert Panel and members of the research group participated in a consensus meeting upon completion of the Delphi study to discuss and further refine the proposed policy solutions. Results 43 separate policy solutions to medication non-adherence were agreed by the Panel. 25 policy solutions were prioritised based on composite scores for importance, and operational and political feasibility. Prioritised policy solutions focused on interventions for patients, training for healthcare professionals, and actions to support partnership between patients and healthcare professionals. Few solutions concerned actions by governments, healthcare commissioners, or interventions at the system level. Conclusions Consensus about practical actions necessary to address non-adherence to medicines has been developed for Europe. These actions are also applicable to

  6. Fast automotive diesel exhaust measurement using quantum cascade lasers

    Science.gov (United States)

    Herbst, J.; Brunner, R.; Lambrecht, A.

    2013-12-01

    Step by step, US and European legislations enforce the further reduction of atmospheric pollution caused by automotive exhaust emissions. This is pushing automotive development worldwide. Fuel efficient diesel engines with SCRtechnology can impede NO2-emission by reduction with NH3 down to the ppm range. To meet the very low emission limits of the Euro6 resp. US NLEV (National Low Emission Vehicle) regulations, automotive manufacturers have to optimize continuously all phases of engine operation and corresponding catalytic converters. Especially nonstationary operation holds a high potential for optimizing gasoline consumption and further reducing of pollutant emissions. Test equipment has to cope with demanding sensitivity and speed requirements. In the past Fraunhofer IPM has developed a fast emission analyzer called DEGAS (Dynamic Exhaust Gas Analyzer System), based on cryogenically cooled lead salt lasers. These systems have been used at Volkswagen AG`s test benches for a decade. Recently, IPM has developed DEGAS-Next which is based on cw quantum cascade lasers and thermoelectrically cooled detectors. The system is capable to measure three gas components (i.e. NO, NO2, NH3) in two channels with a time resolution of 20 ms and 1 ppm detection limits. We shall present test data and a comparison with fast FTIR measurements.

  7. Automotive Stirling engine development program

    Science.gov (United States)

    Ernst, W.; Richey, A.; Farrell, R.; Riecke, G.; Smith, G.; Howarth, R.; Cronin, M.; Simetkosky, M.; Meacher, J.

    1986-01-01

    This is the ninth Semiannual Technical Progress Report prepared under the Automotive Stirling Engine Development Program. It covers the twenty-eighth and twenty-ninth quarters of activity after award of the contract. Quarterly Technical Progress Reports related program activities from the first through the thirteenth quarters; thereafter, reporting was changed to a Semiannual format. This report summarizes the study of higher-power kinematic Stirling engines for transportation use, development testing of Mod I Stirling engines, and component development activities. Component development testing included successful conical fuel nozzle testing and functional checkout of Mod II controls and auxiliaries on Mod I engine test beds. Overall program philosophy is outlined and data and test results are presented.

  8. DYNAMIC TASK SCHEDULING ON MULTICORE AUTOMOTIVE ECUS

    Directory of Open Access Journals (Sweden)

    Geetishree Mishra

    2014-12-01

    Full Text Available Automobile manufacturers are controlled by stringent govt. regulations for safety and fuel emissions and motivated towards adding more advanced features and sophisticated applications to the existing electronic system. Ever increasing customer’s demands for high level of comfort also necessitate providing even more sophistication in vehicle electronics system. All these, directly make the vehicle software system more complex and computationally more intensive. In turn, this demands very high computational capability of the microprocessor used in electronic control unit (ECU. In this regard, multicore processors have already been implemented in some of the task rigorous ECUs like, power train, image processing and infotainment. To achieve greater performance from these multicore processors, parallelized ECU software needs to be efficiently scheduled by the underlaying operating system for execution to utilize all the computational cores to the maximum extent possible and meet the real time constraint. In this paper, we propose a dynamic task scheduler for multicore engine control ECU that provides maximum CPU utilization, minimized preemption overhead, minimum average waiting time and all the tasks meet their real time deadlines while compared to the static priority scheduling suggested by Automotive Open Systems Architecture (AUTOSAR

  9. Flywheel Energy Storage for Automotive Applications

    Directory of Open Access Journals (Sweden)

    Magnus Hedlund

    2015-09-01

    Full Text Available A review of flywheel energy storage technology was made, with a special focus on the progress in automotive applications. We found that there are at least 26 university research groups and 27 companies contributing to flywheel technology development. Flywheels are seen to excel in high-power applications, placing them closer in functionality to supercapacitors than to batteries. Examples of flywheels optimized for vehicular applications were found with a specific power of 5.5 kW/kg and a specific energy of 3.5 Wh/kg. Another flywheel system had 3.15 kW/kg and 6.4 Wh/kg, which can be compared to a state-of-the-art supercapacitor vehicular system with 1.7 kW/kg and 2.3 Wh/kg, respectively. Flywheel energy storage is reaching maturity, with 500 flywheel power buffer systems being deployed for London buses (resulting in fuel savings of over 20%, 400 flywheels in operation for grid frequency regulation and many hundreds more installed for uninterruptible power supply (UPS applications. The industry estimates the mass-production cost of a specific consumer-car flywheel system to be 2000 USD. For regular cars, this system has been shown to save 35% fuel in the U.S. Federal Test Procedure (FTP drive cycle.

  10. Introdução ao Método Delphi

    OpenAIRE

    Joelma de Souza Passos de, Oliveira; Maira Murrieta, Costa; Marina Ferreira de Castro, Wille; Patricia Zeni, Marchiori

    2008-01-01

    Delphi is a future scenario prospecting method effective used when there are no historic data about the issue to be searched, in other words, when there are no quantitative data about the study object. This book presents and discusses Delphi Method, its concepts and applications. It also shows advantages and critics in the method using. Furthermore, it considers the method in Information Science and the method evolution gather with information technology.

  11. Learning, Upgrading, Innovation in the South African Automotive Industry

    DEFF Research Database (Denmark)

    Barnes, Justin; Lorentzen, Jochen

    2003-01-01

    , their internal upgrading and R&D agenda, and their interface with South Africa's national innovation system (NIS). The analysis makes use of eight case studies, and illustrates the conditions under which indigenous innovation in the automotive industries can happen in a developing country. This finding......This paper addresses the innovation activities of automotive component manufacturers in South Africa. It looks at the technological trajectory of a handful of firms that stand out from the crowd and analyses the results of their endeavours in the context of their interaction with foreign capital...... contradicts at least part of the conventional wisdom concerning the location of innovation activities in global car value chains. Results also point to a deficient NIS insofar as there appears to be a disjuncture between the demand for engineering competence in the manufacturing sector on the one hand...

  12. Automotive Technology and Human Factors Research: Past, Present, and Future

    Directory of Open Access Journals (Sweden)

    Motoyuki Akamatsu

    2013-01-01

    Full Text Available This paper reviews the history of automotive technology development and human factors research, largely by decade, since the inception of the automobile. The human factors aspects were classified into primary driving task aspects (controls, displays, and visibility, driver workspace (seating and packaging, vibration, comfort, and climate, driver’s condition (fatigue and impairment, crash injury, advanced driver-assistance systems, external communication access, and driving behavior. For each era, the paper describes the SAE and ISO standards developed, the major organizations and conferences established, the major news stories affecting vehicle safety, and the general social context. The paper ends with a discussion of what can be learned from this historical review and the major issues to be addressed. A major contribution of this paper is more than 180 references that represent the foundation of automotive human factors, which should be considered core knowledge and should be familiar to those in the profession.

  13. Mockup Didatic Set for Students Development in Automotive Electronic

    Directory of Open Access Journals (Sweden)

    Fabio Delatore

    2013-05-01

    Full Text Available The automotive engineering education area, specifically on internal combustion engine, requires the use of suitable systems, capable to simulate, test and obtain specifics data from its operation. Automotive engines are so complex due to it is a mix of engineering subjects, so, a mockup was created to help its study. The mockup is an exactly the same engine that equips a vehicle, but assembled in a mechanical base, equipped with all the necessary components for running it up. The objective of this work is to develop a mockup with a suitable Electronic Control Unit (ECU board, in order to obtain the sensors/actuators signals from the engine and control some important engine functions by using an external ECU, so that the students may test their own strategies, compare with the original ECU.

  14. Making aerospace technology work for the automotive industry, introduction

    Science.gov (United States)

    Olson, W. T.

    1978-01-01

    NASA derived technology already in use in the automotive industry include: (1) developments in electronics design, computer systems, and quality control methods for line testing of cars and trucks; (2) a combustion analysis computer program for automotive engine research and development; (3) an infrared scanner and television display for analyzing tire design and performance, and for studying the effects of heat on the service life of V-belts, shock mounts, brakes, and rubber bearings; (4) exhaust gas analyzers for trouble shooting and emissions certification; (5) a device for reducing noise from trucks; and (6) a low cost test vehicle for measuring highway skid resistance. Services offered by NASA to facilitate access to its technology are described.

  15. Study on cultivation objectives and curriculum system of nursing postgraduate constructed by Delphi method%Delphi法构建护理学研究生培养目标及课程体系的研究

    Institute of Scientific and Technical Information of China (English)

    蒋小平; 颜莉; 郑显兰; 刘贤; 魏晓琼

    2015-01-01

    Objective:To construct the specific ,detailed and operable cultivation objectives of nursing master postgraduates and curriculum system in favor of the cultivation of core competency of nursing professional mas‐ter ,so as to provide the references for the training program of medical colleges and higher nursing education management .Methods:By investigating the related literatures of training scheme of nursing academic type mas‐ter postgraduates in Chinese and English database various colleges and universities public web sites in nearly 5 years in 31 domestic and foreign universities ,and combining with Taylor’s education target model of theory frame ,Delphi specialist letter questionnaire was drafted ,a total of 2 rounds of inquiry were carried out .Statisti‐cal analysis was performed for the positive coefficient ,authoritative coefficient of expert ,expert opinion coordi‐nation degree and the mean value of indexes at all levels ,and coefficient of variation ,and to analyze the practica‐bility and significance of all indexes .Results:A total of 26 experts participated in inquiry ,value of their authority degree was 0 .88 ,and Kendall coordinated coefficient was 0 .531 ,χ2 test showed P<0 .01 ;the cultivation objec‐tives formed through two rounds of expert consultation had 9 concrete items ,including knowledge ,skills and humanistic accomplishment ;the formed curriculum system included 30 subjects totally ,in which there were 4 public obligatory courses ,6 professional basic courses ,20 professional expand option courses .Conclusion:The construction of nursing postgraduate cultivation objectives and curriculum system formed in this study were more specific and operable ,can provide references for development of postgraduate cultivation scheme of nursing profession .%[目的]构建具体、细化及可操作的护理学硕士研究生培养目标和有利于护理专业硕士生核心能力培养的课程体系,为各医学院校和高等护理教

  16. Dynamic Task Scheduling on Multicore Automotive ECUs

    Directory of Open Access Journals (Sweden)

    Geetishree Mishra

    2014-12-01

    Full Text Available Automobile manufacturers are controlled by stringen t govt. regulations for safety and fuel emissions a nd motivated towards adding more advanced features and sophisticated applications to the existing electro nic system. Ever increasing customer’s demands for high level of comfort also necessitate providing even m ore sophistication in vehicle electronics system. All t hese, directly make the vehicle software system mor e complex and computationally more intensive. In turn , this demands very high computational capability o f the microprocessor used in electronic control unit (ECU. In this regard, multicore processors have already been implemented in some of the task rigoro us ECUs like, power train, image processing and infotainment. To achieve greater performance from t hese multicore processors, parallelized ECU softwar e needs to be efficiently scheduled by the underlayin g operating system for execution to utilize all the computational cores to the maximum extent possible and meet the real time constraint. In this paper, w e propose a dynamic task scheduler for multicore engi ne control ECU that provides maximum CPU utilization, minimized preemption overhead, minimum average waiting time and all the tasks meet their real time deadlines while compared to the static pr iority scheduling suggested by Automotive Open Syst ems Architecture (AUTOSAR.

  17. INFLUENCE OF AUTOMOTIVE CLUSTERS IN REGIONAL DEVELOPMENT

    Directory of Open Access Journals (Sweden)

    Constantin BORDEI

    2014-11-01

    Full Text Available This paper proposes an overview of the evolution in the automotive sector in the process of regional development. The fundamental changes made by the component supplier sector improved the regional development and manufacturing process. Automotive industry is one of the modern sectors in many countries that benefits of a high technology impact and creates jobs that reduces unemployment across Europe. The auto industry changed cities, regions and countries into poles of development and it becomes more and more efficient. The high foreign direct investments from the automotive sector play an important role in regional development process. Continuous changes are being made in the economy, society, and company; in conclusion the automotive clusters will always be a subject of analysis.

  18. Fatal exit the automotive black box debate

    CERN Document Server

    Kowalick, Tom

    2005-01-01

    "Fatal Exit: The Automotive Black Box Debate cuts through thirty years of political wrangling and institutional biases to provide an argument for the Motor Vehicle Event Data Recorder (MVEDR). This automotive equivalent of an airplane's flight recorder or black box is intended to solve the mysteries of car crashes and improve the safety of our roads. The reader is taken inside the automotive industry and the government highway safety establishment to foster an understanding of the politics and the positions on all sides of this safety debate. The author takes an unbiased approach, chronologically presenting each argument and uncovering the agendas and mandates of each of the stakeholders." "This publication is essential reading for all consumers who need to have their voices heard on this critical issue, as well as for attorneys, public safety advocates, public policy administrators, engineers, automotive professionals, journalists, and insurance executives."--Jacket.

  19. Nonlinear estimation and control of automotive drivetrains

    CERN Document Server

    Chen, Hong

    2014-01-01

    Nonlinear Estimation and Control of Automotive Drivetrains discusses the control problems involved in automotive drivetrains, particularly in hydraulic Automatic Transmission (AT), Dual Clutch Transmission (DCT) and Automated Manual Transmission (AMT). Challenging estimation and control problems, such as driveline torque estimation and gear shift control, are addressed by applying the latest nonlinear control theories, including constructive nonlinear control (Backstepping, Input-to-State Stable) and Model Predictive Control (MPC). The estimation and control performance is improved while the calibration effort is reduced significantly. The book presents many detailed examples of design processes and thus enables the readers to understand how to successfully combine purely theoretical methodologies with actual applications in vehicles. The book is intended for researchers, PhD students, control engineers and automotive engineers. Hong Chen is a professor at the State Key Laboratory of Automotive Simulation and...

  20. INFLUENCE OF AUTOMOTIVE CLUSTERS IN REGIONAL DEVELOPMENT

    Directory of Open Access Journals (Sweden)

    Constantin BORDEI

    2014-11-01

    Full Text Available This paper proposes an overview of the evolution in the automotive sector in the process of regional development. The fundamental changes made by the component supplier sector improved the regional development and manufacturing process. Automotive industry is one of the modern sectors in many countries that benefits of a high technology impact and creates jobs that reduces unemployment across Europe. The auto industry changed cities, regions and countries into poles of development and it becomes more and more efficient. The high foreign direct investments from the automotive sector play an important role in regional development process. Continuous changes are being made in the economy, society, and company; in conclusion the automotive clusters will always be a subject of analysis.