1 Understanding Automotive Electronics
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Understanding Automotive Electronics Fifth Edition By: With Contributions to Previous Editions by: William B. Ribbens, Ph.D. Norman P. Mansour Gerald Luecke Charles W. Battle Edward C. Jones Leslie E. Mansir 3 Newnes Boston, Oxford, Johannesburg, Melbourne, New Delhi, Singapore
Newnes is an imprint of Butterworth Heinemann. Copyright 1998 by Butterworth Heinemann A member of the Reed Elsevier group All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Recognizing the importance of preserving what has been written, Butterworth Heinemann prints its books on acid-free paper whenever possible. Butterworth Heinemann supports the efforts of American Forests and the Global ReLeaf program in its campaign for the betterment of trees, forests, and our environment. ISBN 0-7506-7008-8 The publisher offers special discounts on bulk orders of this book. For information, please contact: Manager of Special Sales Butterworth Heinemann 225 Wildwood Avenue Woburn, MA 01801 2041 Tel: 781-904-2500 Fax: 781-904-2620 For information on all Butterworth Heinemann publications available, contact our World Wide Web home page at: http://www.bh.com/newnes 10987654321 Printed in the United States of America 4
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Contents Preface... ix Chapter 1 Automotive Fundamentals... 1 Quiz... 27 Chapter 2 The Systems Approach to Control and Instrumentation...29 Quiz... 69 Chapter 3 Electronics Fundamentals... 71 Quiz... 96 Chapter 4 Microcomputer Instrumentation and Control... 99 Quiz... 144 Chapter 5 The Basics of Electronic Engine Control... 147 Quiz... 183 Chapter 6 Sensors and Actuators...187 Quiz... 221 Chapter 7 Digital Engine Control System... 223 Quiz... 258 Chapter 8 Vehicle Motion Control...261 Quiz... 294 Chapter 9 Automotive Instrumentation... 297 Quiz... 332 Chapter 10 Diagnostics...335 Quiz... 365 Chapter 11 Future Automotive Electronic Systems... 367 Quiz... 406 Glossary... 409 Index... 415 Answers to Quizzes... 433 7 UNDERSTANDING AUTOMOTIVE ELECTRONICS vii
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Preface Since the introduction of electronics for emission control on engines, the evolution of electronics in automobiles has advanced rapidly. The pace of development has inspired four revisions of this book in roughly ten years to avoid obsolescence. Rarely in history have technical developments moved at such a pace. Electronics have recently been incorporated on new automotive subsystems and have become standard implementation on many others. Such features as antilock braking systems and airbags could only be achieved practically through the use of electronics. These features are rapidly becoming standard features owing to strong pressures in the highly competitive North American automotive market. The first edition of this book was devoted primarily to electronic engine control because this was the chief application at that time. A number of automotive systems which were discussed in the chapter on the future of automotive electronics in the second, third, and fourth editions are now in production. These systems are presented in the appropriate chapters of this fifth edition. This latest edition covers most of the automotive subsystems incorporating electronics except for entertainment systems. These systems have been omitted partly due to space limitations and because automotive entertainment systems are closely related to home entertainment systems, which are discussed in many excellent publications. In its revised form, this book explains automotive electronics as of the late 1990s. It should prepare the reader for an understanding of present as well as future developments in this field into at least the early part of the next century. William B. Ribbens November 1997 9 UNDERSTANDING AUTOMOTIVE ELECTRONICS ix
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