BS IS0 26262-5:2018 BSl Standards Publication Imperial College London, Version corre Road vehicles Functional safety Part 5: Product development at the hardware level Licensed copy: Imperial College, bsi. BS IS0 26262-5:2018 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 26262-5:2018. It supersedes BS IS0 26262-5:2011, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee AUE/32, Electrical and electronic components and general system aspects (Road vehicles). request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @ The British Standards Institution 2018 Published by BSI Standards Limited 2018 ISBN 978 0580 895135 ICS43.040.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2018. Amendments/corrigenda issued since publication Date Textaffected BS IS0 26262-5:2018 INTERNATIONAL ISO STANDARD 26262-5 Second edition 2018-12-18 Road vehicles Functional safety - Part 5: Product development at the hardware level Vehicules routiers Sécurité fonctionnelle - Partie 5: Developpement du produit au niveau du matériel Reference number ISO 26262-5:2018(E) OSI @IS02018 BS ISO 26262-5:2018 IS0 26262-5:2018(E) , Version correct as of 21/12/2018 I College London, Imperial Licensed copy: Imperial College , COPYRIGHT PROTECTED DOCUMENT IS0 2018, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior writtenpermission.Permission canberequestedfromeitherIsOattheaddressbelow orIso'smemberbodyinthecountryof 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 i @ IS0 2018 - All rights reserved BS IS0 26262-5:2018 IS0 26262-5:2018 Contents Page Foreword ..V Introduction. ..vii 1 Scope. , Version correct as of 21/12/2018 2 Normative references 3 Terms and definitions ..2 4 Requirements for compliance ..2 4.1 Purpose. .2 General requirements T 4.2 4.3 Interpretations of tables. ..3 4.4 AsIL-dependent requirements and recommendations 4.5 Adaptation for motorcycles. .3 4.6 Adaptation for trucks, buses, trailers and semi-trailers .4 5 General topics for the product development at the hardware level ..4 5.1 Objectives. 4 5.2 General .4 6 Specification of hardware safety requirements , Imperial College London, 6.1 Objectives. .5 6.2 General ..6 6.3 Inputs to this clause.. .6 6.3.1 Prerequisites ..6 6.3.2 Further supporting information. .6 6.4 Requirements and recommendations.. . 6 6.5 Work products. 7 Hardware design. .8 7.1 Objectives. ..8 7.2 General 7.3 Inputs to this clause. .9 7.3.1 Prereguisites .9 7.3.2 Further supporting information .9 7.4 Requirements and recommendations... ..9 7.4.1 Hardware architectural design ..9 7.4.2 Hardware detailed design .10 7.4.3 Safety analyses. ..11 7.4.4 Verification of hardware design .13 7.4.5 Production, operation, service and decommissioning .. 13 7.5 Work products. ..14 8 Evaluation of the hardware architectural metrics ..14 8.1 Objectives. ..14 8.2 General ..14 8.3 Inputs of this clause. ..15 8.3.1 Prerequisites .15 8.3.2 Further supporting information ..15 8.4 Requirements and recommendations.. ..16 8.5 Work products. .19 9 Evaluation of safety goal violations due to random hardware failures .20 9.1 Objectives. .20 9.2 General 20 9.3 Inputs to this clause. 20 9.3.1 Prerequisites 20 9.3.2 Further supporting information 20 9.4 Requirements and recommendations.. 21 IS0 2018 - All rights reserved ii BS IS0 26262-5:2018 IS0 26262-5: