Andrew Day - Braking of Road Vehicles

1. Tables in Chapter 2
2. Table in Chapter 3
3. Tables in Chapter 4
4. Tables in Chapter 5
5. Tables in Chapter 6
6. Tables in Chapter 7
7. Table in Chapter 8
8. Tables in Chapter 9
9. Tables in Chapter 10
10. Tables in Chapter 11
11. Tables in Chapter 12

1. Figure in Chapter 1
2. Figures in Chapter 2
3. Figures in Chapter 3
4. Figures in Chapter 4
5. Figures in Chapter 5
6. Figures in Chapter 6
7. Figures in Chapter 7
8. Figures in Chapter 8
9. Figures in Chapter 9
10. Figures in Chapter 10
11. Figures in Chapter 11
12. Figures in Chapter 12

Second Edition

Andrew Day

M.A. (Cantab), PhD. (Loughborough), C.Eng., F.I.MechE., Professor Emeritus, University of Bradford, UK

David Bryant

MEng (Leeds), PhD. (Huddersfield), PGCert (Huddersfield), AMIMechE, Associate Professor, University of Bradford, UK

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Notices

Knowledge and best practice in this field are constantly changing. As new research and experience broaden our understanding, changes in research methods, professional practices, or medical treatment may become necessary.

Practitioners and researchers must always rely on their own experience and knowledge in evaluating and using any information, methods, compounds, or experiments described herein. In using such information or methods they should be mindful of their own safety and the safety of others, including parties for whom they have a professional responsibility.

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Aimed as an introductory textbook about the science and technology of road vehicle braking, this Second Edition of the Braking of Road Vehicles book has been revised, updated, and expanded to reflect recent technological developments and evolution in the original subject matter so that it continues to be a source of reference for both new and experienced engineers working within the industry.

David Bryant has joined the First Edition author Andrew Day as co-author of this Second Edition, and in its preparation, we have each drawn upon our many years experience of teaching and research relating to braking and automotive systems. One of our most influential sources has been our interactions with the many expert practitioners and hundreds of delegates through the annual Braking of Road Vehicles short course for the industry at the University of Bradford since 1996 (the course itself started at Loughborough University in 1966). These people, with their thirst for knowledge, have contributed their own expertise and asked many questions, giving freely of their time. We extend our thanks to all colleagues, companies, and organisations who have supported and helped us to advance our knowledge over so many years; we have named some of them below but there are many more un-named to whom we also owe some debt of gratitude.

The field of vehicle braking continues to be a fascinating discipline which is constantly evolving and adapting to meet new challenges and requirements, so we have broadened and deepened each of the chapters to reflect the associated technologies and developments. What has become apparent to us whilst writing this Second Edition is the considerable influence that regenerative braking is now having upon all areas of road vehicle braking, whether it be advanced control systems and technologies, alternative materials, particulate emissions, or legislative requirements.

The structure of the book remains much the same as the First Edition, although there has been some re-ordering of chapters and content to improve the flow. The first six chapters introduce the fundamental engineering theory; Chapters 711 cover specialist topics; and Chapter 12 rounds off with a selection of case studies relevant to the individual disciplines covered within the book.

Chapter 1 (Introduction) has been updated to reflect how recent developments in vehicle design, in particular powertrains, have influenced all areas of braking science and technology.

Chapter 2 (Friction Pairs) covers recent developments including new and alternative materials and the significance of particulate emissions.

Chapters 3 and 4 (Braking System Design for Passenger Cars and Light Vans/Vehicle and Trailer Combinations) have been updated to provide additional clarity to the text.

Chapter 5 (Brake Design Analysis) includes several revised analyses and an alternative method of drum brake torque calculation with comparisons to more classical methods.

Chapter 6 (Brake System Layout Design) now includes content on brake actuation requirements, electro-mechanical and electro-hydraulic actuators, regenerative braking, and mixed-mode brake blending.

Chapter 7 (Electronic and Autonomous Braking Systems) has been updated to include new content on brake-by-wire technologies, autonomous braking, regenerative braking, and expanded text on the various electronic control strategies.

Chapter 8 (Thermal Effects in Friction Brakes) includes additional content on numerical modelling, and thermal localisations, such as hot banding and hot spotting.

Chapter 9 (Brake Noise, Vibration, and Harshness) has been substantially updated covering experimental analysis of brake squeal, judder, and creep groan, with additional theoretical, experimental, and numerical examples.

Chapter 10 (Brake Testing) has been updated to provide additional detail, examples, and clarity to the text including requirements and procedures for the measurement of brake particulate emissions.