ISO INTERNATIONAL STANDARD 14722 First edition 1998-12-15 Moped and moped-rider kinematics Vocabulary Cinematique relative au cyclomoteur et a son conducteur- Vocabulaire ISO Reference number ISO 14722:1998(E) py IHS under Not for Resale ISO 14722:1998(E) Contents Page 1 Scope 2 Normative references 3 Steering system 3.1 Axis and angles of the steering assembly 3.2 Dynamic quantities of the steering assembly. 3.3 Steering characteristics of the steering assembly. 4 Suspension system 4.1 Suspension geometry 4.2 Suspension dynamic rates 5 Tyres and wheels 5.1 Tyre axis system and variables 5.2 Forces applied to tyres and their coefficients 5.3 Moments applied to tyres 5.4 Phenomena related with tyres. 8 6 Basic principles of axis systems and kinematics 6.1 Axis systems 6.2 Horizontal axis systems. 6.3 Component and assembly axis systems. 6.4 Ground contact axes 6.5 Moped masses and weight distribution @ISO1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International OrganizationforStandardizatior Case postale 56 . CH-1211 Geneve 20 · Switzerland Internet iso@iso.ch Printed in Switzerland onal Organization for Standardizatior Not for Resal ISO 14722:1998(E) @ISO 6.6 Moments of inertia 6.7 Motion variables 6.8 Forces 6.9Moments 15 7 Directional dynamics 16 7.1 Controls .16 7.2 Control modes 16 7.3 Moped response 7.4 Steer properties .18 7.5 Stability 19 8 Moped motion characteristics.. 19 9 Aerodynamic characteristics of the moped-rider combination . 9.1 Winds 21 9.2 Aerodynamic variables 9.3 Aerodynamic forces, moments and coefficients 10 Riding postures and behaviours 23 11 Tests . 11.1 Constant environment influence. .24 11.2 Changeable environment influence .25 11.3 Other tests. ..26 Bibliography 31 Copyright InternationalOrganizationfor Standardization ili Not for Resale