ISO INTERNATIONAL STANDARD 13674-2 Secondedition 2016-04-01 Road vehicles Test method for the quantification of on-centre handling Part 2: Transition test Vehicules routiers - Méthode d'essai pour la quantification du centrage- Partie 2: Essaide la transition Reference number A ISO 13674-2:2016(E) ISO International Organization for Standardization @ IS0 2016 ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS under I Not for Resale, 2016/7/20 02:46:0 itted without license from IHS IS0 13674-2:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinair PrganizationforStandardization ensee-ZHEJIANG INSTOFSTANDARDIZAoISQ6- All rights reserved etworking permitted without license from IHS IS0 13674-2:2016(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. 2 Normative references 3 Terms, definitions and symbols. 4 Principle ..2 5 Variables .2 5.1 Reference system .2 5.2 Variables to be measured .2 6 Measuring equipment. .3 6.1 Description. 3 6.2 Transducer installations .3 6.3 Data processing .3 7 Test conditions .3 7.1 General. 3 7.2 Testtrack. 4 7.3 Wind velocity ..4 7.4 Test vehicle 4 7.4.1 General data ..4 7.4.2 Tyres. 4 7.4.3 Operating components 4 7.4.4 Loading conditions of the vehicle .5 8 Test procedure. .5 8.1 Warm-up. .5 8.2 Initial driving condition .5 8.3 Transition test procedure .5 9 Data evaluation and presentation of results .6 9.1 General. .6 9.2 Time histories .6 9.3 Characteristic values. ..6 9.3.1 Presentation of results. .6 9.3.2 Steering-wheel torque versus steering-wheel angle (M vs. Sn) 9.3.3 Yaw velocity versus steering-wheel angle (d / dt vs. S) .9 9.3.4 Yaw velocity versus steering-wheel torque (d / dt vs. Mh) 9.3.5 Lateral acceleration versus steering-wheel angle (ay vs. Oh) .9 9.3.6 Lateral acceleration versus steering-wheel torque (ay vs. Mh) .9 Annex A (informative) Characteristic values ..10 Bibliography .15 iii ee=ZHEJIANG INST OF STANDARDIZATION C15956617 d without license from IHS Not for Resale, 2016/7/20 02:46:04