Build Your Own Electric Bicycle
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Build Your Own Electric Bicycle
Matthew Slinn
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Copyright 2010 by The McGraw-Hill Companies, Inc. All rights reserved. Except as permitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher.
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This book is dedicated to my girlfriend Heather, who I love.
About the Author
Matthew Slinn is an experienced research scientist and process engineer and has worked on several alternative energy transport applications. During his EngD at the University of Birmingham (U.K.), he worked on the biodiesel process and was sponsored by and worked at Green Biodiesel and BHR Biofuels. During this time he bought his first electric bicycle and quickly recognized the great possibilities for this new form of transport. The new skills he developed while fixing and upgrading this bike won him new jobs in the field of fuel cells and batteries. He worked on the prototype microcab fuel-cell vehicle and at Oxis Energy developing their lithium sulfur batteries. This book is the product of many years of accumulated knowledge.
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Contents
Preface
Most people start off with electric bicycles by buying a commercially built one. This is good because it gets you riding straightaway. After you get over the initial novelty of the seemingly magical silent propulsion, you begin to think, Why cant it go faster? This is where this book comes in. It covers buying the best commercial electric bicycle for you, upgrading it for more power and speed, building your own more-powerful electric bicycle, learning new skills and how things work, repairing your electric bicycle when it breaks down, and adding modifications to improve it. The content is ordered to make it easy for the novice to jump in and get started and then learn by doing. Few tools are needed, and the skills, such as soldering, are easy to learn. This book will bring you to the forefront of electric bicycle technology and inspire you to take on new electric bicycle projects. Once you have read this book, you will want to keep it handy as a manual to guide you through any electric bicycle problems that you encounter or projects that you wish to undertake. Unlike cars, a separate user manual for each make and model of vehicle will not be needed. This book covers all makes of electric bicycles because the technology is simple and the same.
Matthew Slinn
Acknowledgments
I would like to thank the moderators of, and everyone who has contributed to, the Endless-Sphere Technology Forum ( www.endless-sphere.com ). Without them, this book would not be possible. Forums like this are an open source of ideas, where science and engineering happen at lightening speed. This wealth of knowledge and these new discoveries are a benefit to us all.
CHAPTER 1
Introduction
This book is a practical guide to electric bicycles aimed at the novice and intermediate riders of electric bicycles who are interested in learning more and getting the most out of their bicycles. It will be a fun and hands on approach that will cover buying, building, riding, upgrading, modifying, and maintaining your electric bicycle. Electric bicycles are far simpler than cars, essentially consisting of three main components (i.e., battery, controller, and motor) and so are much more user serviceable with a little know-how. Whether you use your electric bicycle for everyday commuting, shopping, racing, or just to show off and impress your friends, this book will help you to succeed.
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