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1. 英文版,共1628页;不是中文版,不是中文版 2. 车载以太网的权威资料
Automotive Ethernet: The Definitive Guide. Copyright C) 201 4 Intrep id Control Sy stems All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy ing, recording, or by any information storage or retrieval sy stem, without the prior written permission of the copyright owner and publisher. Printed in the usa. edition 1. 2 ISBN-10:0-9905388-2-6 ISRN-13:978-0-9905388-2-0 For information on distribution or bulk sales, contact Intrepid Control Systems at(586)731-7950. You can purchase the paperbackorelectronicversionofthisbookatwww.intrepidcs.comoronAmazon.We'dlovetohearyourfeedbackaboutthis book--emailusatethernetbook(aintrepidcs.com Product and comp any names mentioned in this book may be the trademarks of their respective owners. Rather than use a trademark sy mbol with every occurence of a trademarked name we are using the names on ly in an editorial fashion and to the benefit of the trademark owner, with no intention of infringement of the trademark The information in this book is distributed on an "As Is "basis, without warranty. While every precaution has been taken in the preparation of this book, neither the authors nor Intrepid Control Sy stems shall have any liability to any person or entity with respect to any loss or damage caused or alleged to be caused directly or indirectly by the information contained in this book Digital Editions(ep ub and mobi formats)produced by Booknook biz Foreword by bob metcalfe , Inventor of Ethernet Auto motive Ethernet--If You Build It, They will come The early Internet of 1969 ran across transcontinental trunks at 50 kilobits per second, creating what we might dub the Kilobit Internet. Advances such as fiber optics and dense wave-division multiplexing(dWdm in the 1990s brought us forward to the Megabit Internet of today. What's next? We network plumbers are now"gigifying"the Internet, with the gigabit Internet promising incredible performance beyond anything most Internet users can dream of tod a But what will all this power be used for? We envision that new technologies will not only expand the Internet's speed but also broaden its scope. The Internet of Things (lot)will bring device connectivity on a scale unimaginable even given the current Internets enormous size, making good use of those gigabit connections. And another place where I see the Internet becoming ubiquitous is in the billions of microcontrollers used in modern automobiles, especially as we add new safety, convenience and entertainment capabilities, and eventually move toward driverless transportation for greater safety and efficiency Many people don t realize that modern cars are already heavily networked and becoming more so every day. Planners foresee no fewer than four kinds of automotive networ king in the future 1. Networking within cars, to implement systems control, driver feedback. safety features, entertainment and many other functions 2. Networking between cars, to implement capabilities such as collision avoidance 3. Networking between cars and the road infrastructure, for greater safety and efficiency 4. Networking from cars to the Internet to allow passengers to get driving related information such as maps and traffic updates in a timely manner or simply to remain part ofour always-connected world Automobile networks are currently mostly focused on the first categoryin- vehicle systems-which are presently implemented using relatively slow technologies not found outside the automotive industry. as the inner workings of cars become more intelligent and complex, they increasingly demand improvements in the networking area. But any new technology used here needs to be not just faster, cheaper and capable of connecting many nodes--it also needs to be standardized and widely adopted to enable compatibility and connectivity among diverse suppliers and industries As I have been saying for 40 years: " If it's networking that you need, Ethernet is the answer; what is the question? In this case, we there might be consider two related questions: "What took the automotive world so long? And how will it now use ethernet going forw ard? This book provides the answers to these questions Ethernet comprises much of the Internets packet plumbing, and its reach is enormous. It has also been evolving rapidly since its invention as a personal computer lan back on May 22,1973, and doing so quite successfully as a set of open standards under ieee Project 802. It has also been adapted from wired to wireless in the form of wi-fi. also known as wireless ethernet which will play a key role in external automotive networking in the future lore than a billion wired and wireless ( Wi-Fi) Ethernet ports now ship annually, and the automotive industry represents the potential for this number to increase significantl y This book is about Ethernet, and how its many advantages and innovations will move in-car networking to the next level, setting the stage for a true revolution in the capabilities of vehicles and how we use them. It provides essential reference material for the intersection of the automotive networking world and the ethernet world, and points the way to the future of the connected vehicle. It is a guide to the next big thing in the Gigabit Internet: Automotive Ethernet Bob metcalfe Inventor of ethernet Technology Professor of Innovation, Murchison Fellow of Free Enterprise University of Texas at austin TABLE OF CONTENTS PARTI: INTRODUCTION TO GENERAL AND AUTOMOTIVE NETWORKING Chapter 1: The Motivation for Automotive Ethernet: Advantages and opportunities 1.1 ntroduction 1.2 Two Worlds collide 1.3 Automotive electronics-a market for growth 4 Ethernet- An ocean of possibilities 1.5 Increasing Bandwidth and Future-Proof Te chnology .6 Full-Duplex, Packet-Switched, Address-Based Networking 6.1 Full-Duplex Operation 1. 6.2 Packet Switching 16.3 Address-Based Messaging 1. Electrical isolation 1. 8 Power over ethernet(poe)and Power over Data Lines ( PoDLy 1.9 High Speed and Low Weight 1.10 Product Differentiation -It's No Longer about nuts and bolts 1.11 Wireless functionality 1.12 Summary Chapter 2: Overview, Background and Business Requirements of Automotive Networking 2. 1 Introduction 2.2 A Brief History of Automotive Networking 2.2.1 The first serial Communications 2. 2.2 Real-Time Networks 2.2.3 Establishing CAN as an Industry Standard 2. 2. 4 Beyond CaN 2.2.5 The dawn of automotive ethernet 2.3 Safety 2.3. 1 The Double Edged Sword of Automotive Electronics 2.3.2 IS0 26262-Road vehicle Safety Standard for Electrical and Electronic Systems 2.3.3 Automotive Safety Integrity Level (AsIL) 23. 4 Achieving Functional Safety 2.4 Component Availability 2. 4.1 Contrasting the Average Lifespan of Consumer Electronics and Vehicles 2.4.2 The Development Cycle of Consumer Electronics Compared to Automobiles 2. 43 Summary of Important Factors for Component Availability 2.5 Cost considerations 2.5.1 Electronics Content in a Modern vehicle 2.5.2 Profit Margins for Automotive Manufacturers 2.5.3 Changing Times Mean New Cost Equations in the Networking World Chapter 3: Electrical Requirements for Automotive Electronics 3.1 Power Supply / voltages 3. 1. 1 Reverse Polarity 3.1.2 Cold Cranking Voltage 3. 1.3 Load Dump 3. 1. 4 Power Management 3. 1.5 Parked State Power Consumption (Parasitic Current Draw 3.1. 6 Power connections to an ecu 3.1.7 Automotive transceivers 3.1.8 Typical System Sleep/Standby Modes 3. 1.9 Wakeup /Boot Time 3.1.10 Virtual Networking 3.1.11 Partial Networking 3.2 Electromagne tic Compatibilit 3.2.1 Emissions testing 3.2.2 Immunity(Susceptibility) Testing Chapter 4: Environmental and Mechanical Requirements for Automotive electronics 4.1 Environmental concerns Constant Temperature Conditions 4.1.2 Temperature Fluctuations and Temperature Step Testing 4.1.3 Temperature Cycling 41. 4 Ice Water Shock testing Salt spray 4.1.6 Cyclic Humid Heat 4.2 Mechanical loads/ vibrations 4.2.1 Thermal Impact of mechanical loads 4.2.2 Free Fall/ Drop Test 2.3 Vehicle Body/ Sprung Masses 4.2.4 Wheels, Suspension/Unsprung Masses 4.2.5 Doors Hood and Trunk 4.2.6 Engine 4.2.7 Transmission or gearbox 4.2.8 Flexible plenum Chamber Chapter 5: Networking Fundamentals 5.1 Introduction 5.2 Fundamental Network characteristics 2.1 Networking Layers, Models and Architectures 5.2.2 Protocols: What Are They, Anyway? 5.2.3 Circuit Switching and Packet Switching Networks 5.2.4 Connection-Oriented and Connectionless protocols 5.2.5 Messages: Packets, Frames, Datagrams and more 5.2.6 Message Formatting: Headers. Payloads and Footers 2.7 Message Addressing and Transmission Methods Unicast. Broadcast and Multicast Messages 5.2.8 Network Topologies 5.2.9 Network Operational Models and Roles: Peer-to-Peer, Client/Server and Master /Slave Networking 5.3 Types and Sizes of Networks 5.3.1 Local Area Networks (LANs), Wireless LANs(WLANs), wide Area Networks (WANS)and variants 5.3.2 Network Size Terminology: Segments Clusters Networks. Subnetw orks and internet orks 3.3 The internet. Intranets and extranets 5.4 Network Performance Issues and Concepts 5.4.1 Putting Network Performance In Perspective 5.4.2 Balancing Network Performance with Key Non-Performance Characteristics 5.4.3 Unders tanding Performance Measurement Terms and Units 5.4.4 Performance Dimensions: Speed, Bandwidth Throughput and Latency 5. 4.5 Theoretical and Real-World Throughput, and Factors Affecting Network Performance 5.4.6 Simplex, Half-Duplex and Full-Duplex Communication 5.4.7 Quality of service(Oos Chapter 6: Automotive Ethernet Related standards Organizations and associations 6.1 ntroduction 6.2 Making Sense of standards Organizations and Associations 6.3 International Standards Organizations 6.3.1 International Organization for Standardization (Iso) 6.3.2 International Electrotechnical Commission (EC 6.3.3 Institute for Electronics and Electrical Engineers () 6.3.4 Internet Engineering Task Force (IETF) 6.3.5 SAE Internationa 6.4 Industry Consortiums and Associations 6.4.1 One-Pair EtherNet(OPEN Alliance Special Interest Group(SIG 6.4.2 AVnu alliance 6.4.3 Association for standardization of automation and measuring Systems (ASAM) 6.4 4 AUTOSAR Chapter 7: The Open System Interconnection(oST Reference model 7.1 Introduction 7.2 History of the osi Reference Model 1.3 General Reference model issues 7.3.1 The benefits of networking models 7.3.2 Why Understanding The OSI Reference Model Is Important To YYou 7. 3. 3 The osi Reference model in the "Real world

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