STD.IS0 11B38-ENGL 1997 4851903 80700305T21 ISO INTERNATIONAL STANDARD 11838 First edition 1997-03-01 Motorcycle and motorcycle-rider kinematics Vocabulary Cinematique relative au motocycle et a son conducteur - Vocabulaire This materia! is reproduced from Iso documents under International Organization for Standardization (Iso) Copyright License number IHS/ICC/1996. Not for resale. No part of these Iso documents may be reproduced in any form,electronic retrieval system or otherwise, except as allowed in the copyright law of the country of use, or with the prior written consent of ISO (Case postale 56, 1211 Geneva 20, Switzerland, Fax +41 22 7341079),iHS orthe ISo Licensor'smembers. ISO Reference number ISO 11838:1997(E) 11838-ENGL1997 STD.ISO 4851903 9969050020 ISO 11838:1997(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO memberbodies).The work of preparing International Standards is normally carried out through Iso technicalcommittees. Eachmemberbodyinterestedinasubjectfor which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (lEC)onallmattersofelectrotechnicalstandardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 11838 was prepared by Technical Committee ISO/TC22,Roadvehicles,SubcommitteeSC22Motorcycles. iSO1997 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. / Droits de reproduction réserves. Sauf prescription differente, aucune partie de cette publication ne peut etre reproduite ni utilisee sous quelque forme que ce soit et par aucun procede, électronique ou mecanique, y compris la photocopie et les microfilms, sans I'accord écrit de I'éditeur. InternationalOrganizationforStandardization Casepostale56·CH-1211Geneve20.Switzerland Internet [email protected] X.400 C=ch; a=400net; p=iso; 0=isocs; S=central Printed in Switzerland/lmprime en Suisse STD.IS0 1183B-ENGL1997 4851903 07003078T4 INTERNATIONALSTANDARD ISO ISO 11838:1997(E) Motorcycle and motorcycle-rider kinematics -- Vocabulary 1 Scope 1.1 This International Standard specifies symbols, definitions and conventions related to motorcycle and motorcycle-ridermotionsandkinematicsandtothemodellingthereof. 1.2 It does not deal with methods of measurement, nor with the units used in reporting the results, nor with accuracy. 1.3 The provisions of this International Standard apply to two-wheeled motorcycles as defined in ISO 3833. 1.4 This International Standard does not cover road motorcycles which are controlled by a pedestrian or which are used for the carriage of goods to the exclusion of persons. 1.5 This International Standard specifies terms, definitions and symbols for the following systems. parts and aspects: steeringsystem (clause3) suspension system (clause 4) tyres and wheels (clause 5) basic principles of axis systems and kinematics (clause 6) directional dynamics (clause 7) motorcyclemotioncharacteristics (clause8) aerodynamic characteristics of the motorcycle-rider combination (clause 9) ridingpostures and behaviours (clause10) tests (clause 11). 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this I