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1991 Eighth International Conference on Automotive Electronics

28-31 Oct 1991

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Displaying Results 1 - 25 of 44
  • Development of an automotive accelerometer for advanced chassis management applications

    Publication Year: 1991, Page(s):198 - 202
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (264 KB)

    The authors describe the development of a low-g automotive accelerometer from the original inception to the point of final product development. They detail some of the problems encountered and the outcome of experimental work. The accelerometer is based on micromachined piezoresistive silicon View full abstract»

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  • Cost-effective multiplexing [automotive electronics]

    Publication Year: 1991, Page(s):79 - 84
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (256 KB)

    In recent years, the electrical content of the average motor car has increased dramatically. As the functionality of these cars increases further, the electrical wiring harness servicing the functions must also grow, both in size and complexity. The authors use multiplexing to replace several signal-carrying cables with a databus using only one or two wires. The bus transmits this signal informati... View full abstract»

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  • ROVAT-a most versatile and cost-effective brushless angle sensor

    Publication Year: 1991, Page(s):192 - 197
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (320 KB)

    The recently developed rotary variable auto-transformer (ROVAT) brushless inductive angle sensor has now reached the stage of production availability for automobiles in a wide range of sizes and angular spans, together with its associated signal processing electronics. The sensor's unique simplicity in construction-a ferromagnetic stator with a single winding, and a windingless rotor-lends itself ... View full abstract»

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  • Class 2: General Motors' version of SAE J1850

    Publication Year: 1991, Page(s):74 - 78
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (312 KB)

    Class 2 is the term used by General Motors (GM) for its implementation of the Society of Automotive Engineers (SAE) J1850 specification for Class B (medium-speed) serial data communications. Class 2 operates at an average speed of 10.4 kbit/s and uses an encoding scheme known as variable pulse width (VPW) modulation, transmitted on a single wire medium. The silicon which GM uses is being developed... View full abstract»

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  • Vehicle auxiliary power applications for solar cells

    Publication Year: 1991, Page(s):187 - 191
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (260 KB)

    Solar cell technology is today at the point where automotive applications can be considered. The author reviews solar cells as a power supply for battery charging, ventilation and auxiliary power for lighting, vehicle security and other applications. Preliminary results from testing of solar car ventilation systems concepts are discussed. Comparisons are made of the leading solar cell technologies... View full abstract»

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  • Testing of automotive electronic components regarding influence of electromagnetic field strength levels radiated by lightning discharges-application to a multiplexing communication system

    Publication Year: 1991, Page(s):68 - 73
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (316 KB)

    Experiments have been developed by the French automobile group during a lightning testing campaign in order to evaluate, in situ, the risks incurred by automobiles from thunderstorm illumination. The authors describe the logistics developed in view of performing the tests on two vehicles: a PSA 405 MI 16 and a Renault truck, placed on the lightning research station of St Privat D'Allier during sum... View full abstract»

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  • Issues in the validation and verification of vehicle software

    Publication Year: 1991, Page(s):98 - 101
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (244 KB)

    Despite the special difficulties of automobile software, with its stringent but evolving requirements, there are many powerful techniques for software verification and validation. However, there are practical limits to the reliability which can be demonstrated, and it is essential to follow a well-defined and rigorous specification and development process View full abstract»

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  • Multichip packages-the nest stage of integration for automotive electronics?

    Publication Year: 1991, Page(s):182 - 186
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (272 KB)

    The ever increasing complexity and pervasion of electronics on modern vehicles has an omnipresent problem-space. Whilst the benefits of adding electronic control to various functions is appreciated, the space taken by the electronic control unit is not. Consequently electronic systems are forced into hostile environments and provided with very little space. The authors illustrate the potential rol... View full abstract»

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  • An enabLing technology for automotive systems-linASIC

    Publication Year: 1991, Page(s):63 - 67
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (296 KB)

    The authors show how a linear ASIC technology satisfies many of the previously unfulfilled requirements of automotive systems. Taking a real example of an automotive oil level sensor, the principle of combining high performance analog circuitry with digital electronics is examined. This application shows how many simple automotive functions may achieve a single chip solution with such a technology... View full abstract»

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  • An overview of in-vehicle control systems development

    Publication Year: 1991, Page(s):95 - 97
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (236 KB)

    For over ten years, Ford Motor Company has been developing and gaining experience in powertrain management control systems. The current system (EEC-IV) includes numerous control algorithms and software, covering a very wide range of applications throughout the company's powertrain products. The examples and specific methods are based on the development life-cycle presently established for the engi... View full abstract»

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  • Automated thermographic inspection of surface mount solder joints

    Publication Year: 1991, Page(s):178 - 181
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (268 KB)

    The authors describe a thermal imaging technique for inspecting solder joints on a surface mount assembly. It is anticipated that this method will allow the simultaneous identification of all the defective joints present on a surface mount assembly. The basis of the technique is to capture real time thermal images of the assemblies as they cool following their exit from the reflow soldering proces... View full abstract»

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  • The application of artificial neural networks to provide safe access to driver information systems and other noncritical automotive functions

    Publication Year: 1991, Page(s):165 - 169
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (268 KB)

    The need for intrinsically safe access to driver information systems and other noncritical automotive functions is a pressing one and needs no elaboration. Voice access systems have been proposed for this. The authors describe the results of an initial investigation into the use of time encoded speech (TES) fixed size, fixed dimension A-matrices as the input layer of a simple neural network, confi... View full abstract»

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  • A novel distributor-less variable spark energy IC engine ignition system

    Publication Year: 1991, Page(s):34 - 38
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (304 KB)

    An ignition system utilising a DC high voltage source and bulk photo-conductive switches in place of the ignition coil is shown to be practical. Systems based on this principle show significant advantages over conventional capacitive and inductive discharge systems in that the spark characteristics are more readily controlled and the system is inherently distributorless. A significant improvement ... View full abstract»

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  • Microcoded timing coprocessor for enhanced engine management

    Publication Year: 1991, Page(s):58 - 62
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (316 KB)

    The author describes the architecture and functional operation of a multi-tasking, micro-coded timer unit specifically designed to synthesise and capture the high resolution, real-time signals required to meet the developing needs of the automotive industry particularly with respect to the increasing demands for exhaust pollution reduction combined with improved performance and drivability of the ... View full abstract»

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  • Millimetre wave technology for collision avoidance and cruise control

    Publication Year: 1991, Page(s):150 - 154
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (192 KB)

    With the degree of electronics present within automobiles (cars, lorries, etc.) increasing, and with the development of cruise control, and subsequently, collision avoidance systems, it is natural to apply millimetre wave radar technology to this application. The authors describe the way that the technology developed for millimetre wave systems has now been further enhanced and used in a vehicle m... View full abstract»

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  • A nonlinear mathematical engine model for the development of dynamic engine control

    Publication Year: 1991, Page(s):90 - 94
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (244 KB)

    With the rapid increase in power and decrease in cost of VLSI chips, it is timely to consider the feasibility of their exploitation in advanced control algorithms for vehicle management systems. The use of such controllers to optimise energy utilisation is justified by the scarcity and high cost of liquid fuels and will increasingly become obligatory in order to satisfy `green' legislation. To mee... View full abstract»

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  • Performance of new silicone adhesives and encapsulants at high and low temperatures

    Publication Year: 1991, Page(s):174 - 177
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (192 KB)

    Silicone coating and encapsulation materials are well established products used in many applications ranging from construction to aerospace. Silicones are very successful in providing the environmental protection of car electronic systems. Automotive electronics are exposed to hazards that most electronic components never encounter, including high humidity, constant vibration and extreme temperatu... View full abstract»

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  • Safe RTI systems-a proposal for a standard

    Publication Year: 1991, Page(s):160 - 164
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (340 KB)

    A proposal for a standard for the design and certification of European road transport informatics systems is being produced as part of `DRIVE Safely' (EC DRIVE project V1051) by a consortium from three different countries. It is intended that this proposal should be given to CEN/CENELEC at the basis for a European Standard. The Institute of Traffic Safety, TUEV Rheinland in Cologne, Germany, have ... View full abstract»

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  • High performance mixed analogue and digital ASIC for knock detection

    Publication Year: 1991, Page(s):29 - 33
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (204 KB)

    An ASIC is designed, using a high performance mixed analogue and digital process, to meet the requirements for knock detection in modern petrol engine ignition and engine management systems. It utilises the capabilities of mixed analogue and digital ASIC technology to provide a cost effective solution in a volume production application. Not only is the solution cost effective but it also provides ... View full abstract»

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  • A floating point co-processor for real-time fault detection and isolation in electronically controlled IC engines

    Publication Year: 1991, Page(s):53 - 57
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (352 KB)

    In recent years there has been a significant growth in the need for sophisticated diagnostic procedures in electronically controlled vehicle subsystems. The authors introduce an architecture for a floating-point state estimator, designed specifically to interact as a co-processor with the onboard fault detection and isolation (FDI) controller. The processor considers the structure of model-based f... View full abstract»

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  • 80 GHz automotive radar

    Publication Year: 1991, Page(s):145 - 149
    Cited by:  Papers (12)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (276 KB)

    The idea of equipping cars with radar has been around for a long time, but it is only with the arrival of low cost, compact millimetre-wave radars, that such systems have become practicable. The availability of suitable radar sensors and of sophisticated digital signal processing has opened up two important applications for millimetre-wave radar in cars: one is as a relatively simple forward-looki... View full abstract»

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  • Characterisation of data transponding link for road-use debiting systems

    Publication Year: 1991, Page(s):125 - 129
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (348 KB)

    Bi-directional short-range data links are being developed for implementation in automatic road-use debiting schemes in the pan-European DRIVE programme. The authors characterise a microwave data transponding link designed by the PAMELA consortium within the DRIVE initiative. They describe the functional analysis of the subsystems that make up the link. The characterisation involves estimating the ... View full abstract»

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  • Development of tin dioxide based exhaust sensors

    Publication Year: 1991, Page(s):19 - 23
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (216 KB)

    Potential applications for new solid-state exhaust sensors are examined, with particular reference to catalytic converters. The development of conventional tin dioxide based gas sensors is contrasted with that for sensing materials commonly encountered in exhaust sensing technology. Experimental investigations suggest both promotion of selectivity and monitoring of air/fuel ratio as promising line... View full abstract»

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  • Noncontact rotary sensors for automotive use

    Publication Year: 1991, Page(s):203 - 207
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (272 KB)

    As automotive systems develop in their complexity and performance a need has emerged for noncontact rotary position sensors which offer significant durability enhancements over traditional resistive track rotary devices. Such reliability improvements are particularly important when the sensor is to be used with safety critical chassis and power-train management systems. Contactless rotary sensors ... View full abstract»

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  • Use of simulation in the design of automotive electronics

    Publication Year: 1991, Page(s):85 - 89
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (240 KB)

    Design of automobiles is increasing in complexity and competitiveness. The wider use of electronics in more and more components of automobiles requires the use of the most advanced analytical methods to derive overall optimum vehicle design. The automotive industry, which has only recently used electronics in vehicles, has taken advantage of all the latest developments available in simulation and ... View full abstract»

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