Technical ISO Specification ISO/TS18571 Road vehicles Objective rating Second edition 2024-05 metric for non-ambiguous signals Vehicules routiers - Mesures pour I'évaluation objective de signaux non ambigus Reference number IS0/TS.18571:2024(en) @IS0 2024 IS0/TS 18571:2024(en) COPYRIGHTPROTECTEDDOCUMENT @IS02024 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below orIso'smemberbodyinthecountryoftherequester ISO copyright office CP401·Ch.deBlandonnet8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland IS02024-Allrightsreserved IS0/TS 18571:2024(en) Contents Page Foreword. .iv Introduction. 1 Scope. .1 2 Normative references 3 Terms and definitions 1 4 Abbreviated terms and symbols 4.1 Abbreviated terms. 2 4.2 General 2 4.3 Corridor score 4.4 Phase, magnitude and slope scores 3 4.4.1 General 3 4.4.2 Phase score. 3 4.4.3 Magnitude score. .3 4.4.4 Slope score... 4 4.5 Overall IsO rating. 4 5 General data requirements 5 6 ISO metric 5 6.1 General 5 6.2 Calculation of the overall ISO rating .5 6.3 Corridor score .6 6.3.1 General .6 6.3.2 Calculation. 7 6.3.3 Step by step procedure 8 6.4 Phase, magnitude and slope scores 8 6.4.1 Phase score. 9 6.4.2 Magnitude score. .10 6.4.3 Slopescore 13 6.4.4 Step by step procedure 15 7 Meaning of the overall IsO rating 15 8 Pre-processing of the data 16 8.1 General .16 8.2 Synchronization of the signals .16 8.3 Sampling rate. 16 8.4 Filtering 16 8.5 Interval of evaluation .17 9 Limitations. 18 9.1 General. .18 9.2 Type of signals .18 9.3 Metric validation. .18 9.4 Meaning of the results .19 9.5 Multiple responses. 19 Annex A (informative) Case studies 20 Bibliography 92 @ IS0 2024 - All rights reserved IS0/TS 18571:2024(en) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the Iso/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of IsO document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Iso draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s). IsO takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof. As of the date of publication of this document, Iso had not received notice of (a) patent(s) which may be required to implement this document. However, implementers are cautioned that this may not represent the latest information, which may be obtained from the patent database available at www.iso.org/patents. IsO shall not be held responsible for identifying any or all such patent rights. Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation of the voluntary nature of standards, the meaning of Iso specific terms and expressions related to conformity assessment, as well as information about Iso's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html. This document was prepared by Technical Committee ISO/TC 22,