BS ISO 26262-9-2011 Road vehicles Functional safety Automotive safety integrity level (ASIL)-oriented and safety-oriented analyses《道路车辆 功能安全 面向机动车安全完整性等级(ASIL)等级与安全达成度分析》.pdf
《BS ISO 26262-9-2011 Road vehicles Functional safety Automotive safety integrity level (ASIL)-oriented and safety-oriented analyses《道路车辆 功能安全 面向机动车安全完整性等级(ASIL)等级与安全达成度分析》.pdf》由会员分享,可在线阅读,更多相关《BS ISO 26262-9-2011 Road vehicles Functional safety Automotive safety integrity level (ASIL)-oriented and safety-oriented analyses《道路车辆 功能安全 面向机动车安全完整性等级(ASIL)等级与安全达成度分析》.pdf(28页珍藏版)》请在麦多课文档分享上搜索。
1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 26262-9:2011Road vehicles FunctionalsafetyPart 9: Automotive Safety Integrity Level(ASIL)-oriented and safety-oriented analysesBS ISO 26262-9:2011 BRITISH STANDARDNational
2、 forewordThis British Standard is the UK implementation of ISO 26262-9:2011.The UK participation in its preparation was entrusted to TechnicalCommittee AUE/16, Electrical and electronic equipment.A list of organizations represented on this committee can beobtained on request to its secretary.This pu
3、blication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 62311 0ICS 43.040.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the
4、authority of theStandards Policy and Strategy Committee on 30 November 2011.Amendments issued since publicationDate Text affectedBS ISO 26262-9:2011Reference numberISO 26262-9:2011(E)ISO 2011INTERNATIONAL STANDARD ISO26262-9First edition2011-11-15Road vehicles Functional safety Part 9: Automotive Sa
5、fety Integrity Level (ASIL)-oriented and safety-oriented analyses Vhicules routiers Scurit fonctionnelle Partie 9: Analyses lies aux niveaux dintgrit de scurit automobile (ASIL) et la scurit BS ISO 26262-9:2011ISO 26262-9:2011(E) COPYRIGHT PROTECTED DOCUMENT ISO 2011 All rights reserved. Unless othe
6、rwise 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 either ISO at the address below or ISOs member body in the country of the requester. ISO copyrigh
7、t office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2011 All rights reservedBS ISO 26262-9:2011ISO 26262-9:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv Introduction . v 1
8、Scope 1 2 Normative references 1 3 Terms, definitions and abbreviated terms 2 4 Requirements for compliance 2 4.1 General requirements . 2 4.2 Interpretations of tables 2 4.3 ASIL-dependent requirements and recommendations . 3 5 Requirements decomposition with respect to ASIL tailoring . 3 5.1 Objec
9、tives 3 5.2 General . 3 5.3 Inputs to this clause 4 5.4 Requirements and recommendations . 4 5.5 Work products . 7 6 Criteria for coexistence of elements . 7 6.1 Objectives 7 6.2 General . 7 6.3 Inputs to this clause 8 6.4 Requirements and recommendations . 8 6.5 Work products . 9 7 Analysis of depe
10、ndent failures 9 7.1 Objectives 9 7.2 General . 9 7.3 Inputs to this clause 9 7.4 Requirements and recommendations . 10 7.5 Work products . 11 8 Safety analyses 11 8.1 Objectives 11 8.2 General . 11 8.3 Inputs to this clause 13 8.4 Requirements and recommendations . 13 8.5 Work products . 14 Annex A
11、 (informative) Overview of and document flow of Automotive Safety Integrity Level (ASIL)-oriented and safety-oriented analyses 15 Bibliography 16 BS ISO 26262-9:2011ISO 26262-9:2011(E) iv ISO 2011 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide fed
12、eration 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 comm
13、ittee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accorda
14、nce with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires
15、 approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 26262-9 was prepared by Technical
16、 Committee ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical and electronic equipment. ISO 26262 consists of the following parts, under the general title Road vehicles Functional safety: Part 1: Vocabulary Part 2: Management of functional safety Part 3: Concept phase Part 4: Product developmen
17、t at the system level Part 5: Product development at the hardware level Part 6: Product development at the software level Part 7: Production and operation Part 8: Supporting processes Part 9: Automotive Safety Integrity Level (ASIL)-oriented and safety-oriented analyses Part 10: Guideline on ISO 262
18、62 BS ISO 26262-9:2011ISO 26262-9:2011(E) ISO 2011 All rights reserved vIntroduction ISO 26262 is the adaptation of IEC 61508 to comply with needs specific to the application sector of electrical and/or electronic (E/E) systems within road vehicles. This adaptation applies to all activities during t
19、he safety lifecycle of safety-related systems comprised of electrical, electronic and software components. Safety is one of the key issues of future automobile development. New functionalities not only in areas such as driver assistance, propulsion, in vehicle dynamics control and active and passive
20、 safety systems increasingly touch the domain of system safety engineering. Development and integration of these functionalities will strengthen the need for safe system development processes and the need to provide evidence that all reasonable system safety objectives are satisfied. With the trend
21、of increasing technological complexity, software content and mechatronic implementation, there are increasing risks from systematic failures and random hardware failures. ISO 26262 includes guidance to avoid these risks by providing appropriate requirements and processes. System safety is achieved t
22、hrough a number of safety measures, which are implemented in a variety of technologies (e.g. mechanical, hydraulic, pneumatic, electrical, electronic, programmable electronic) and applied at the various levels of the development process. Although ISO 26262 is concerned with functional safety of E/E
23、systems, it provides a framework within which safety-related systems based on other technologies can be considered. ISO 26262: a) provides an automotive safety lifecycle (management, development, production, operation, service, decommissioning) and supports tailoring the necessary activities during
24、these lifecycle phases; b) provides an automotive-specific risk-based approach to determine integrity levels Automotive Safety Integrity Levels (ASIL); c) uses ASILs to specify applicable requirements of ISO 26262 so as to avoid unreasonable residual risk; d) provides requirements for validation and
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