GB/T 34590.9-2022 English PDF (GBT34590.9-2022)

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GB/T 34590.9-2022: Road vehicles -- Functional safety -- Part 9: Automotive safety integrity level(ASIL)-oriented and safety-oriented analyses
GB/T 34590.9-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040
CCS T 35
Replacing GB/T 34590.9-2017
Road Vehicles - Functional Safety - Part 9: Automotive
Safety Integrity Level (ASIL)-oriented and Safety-oriented
Analyses
(ISO 26262-1:2018, MOD)
ISSUED ON: DECEMBER 30, 2022
IMPLEMENTED ON: JULY 1, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 4
Introduction ... 8
1 Scope ... 12
2 Normative references ... 13
3 Terms and definitions ... 14
4 Requirements ... 14
4.1 Purpose... 14
4.2 General requirements ... 14
4.3 Interpretations of tables ... 15
4.4 ASIL-dependent requirements and recommendations ... 16
4.5 Adaptation for motorcycles ... 16
4.6 Adaptation for goods vehicles, buses, special vehicles, and trailers ... 16
5 Requirements decomposition with respect to ASIL tailoring ... 16
5.1 Objectives ... 16
5.2 General rules ... 17
5.3 Inputs to this chapter ... 17
5.4 Requirements and recommendations ... 18
5.5 Work products ... 22
6 Criteria for coexistence of elements ... 22
6.1 Objectives ... 22
6.2 General rules ... 22
6.3 Inputs to this chapter ... 23
6.4 Requirements and recommendations ... 23
6.5 Work products ... 24
7 Analysis of dependent failures ... 24
7.1 Objectives ... 24
7.2 General rules ... 24
7.3 Inputs to this chapter ... 26
7.4 Requirements and recommendations ... 27
7.5 Work products ... 29
8 Safety analyses ... 29
8.1 Objectives ... 29
8.2 General rules ... 30
8.3 Inputs to this chapter ... 31
8.4 Requirements and recommendations ... 32
8.5 Work products ... 34
Appendix A (Informative) Overview of Automotive Safety Integrity Level (ASIL)-
oriented and safety-oriented analyses ... 35
Appendix B (Informative) Example architectures for Coexistence of elements and
Decomposition of requirements ... 38
Appendix C (Informative) Framework for Identifying Dependent Failures ... 40
References ... 45
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020
Directives for Standardization - Part 1: Rules for the Structure and Drafting of
Standardizing Documents.
This document is Part 9 of GB/T 34590 Road Vehicles - Functional Safety. GB/T 34590
has issued the following parts:
-- Part 1: Vocabulary;
-- Part 2: Management of Functional Safety;
-- Part 3: Concept Phase;
-- Part 4: Product Development at the System Level;
-- Part 5: Product Development at the Hardware Level;
-- Part 6: Product Development at the Software Level;
-- Part 7: Production, Operation, Service and Decommissioning;
-- Part 8: Supporting Processes;
-- Part 9: Automotive Safety Integrity Level (ASIL)-oriented and Safety-oriented
Analyses;
-- Part 10: Guideline;
-- Part 11: Guidelines on Applications to Semiconductors;
-- Part 12: Adaptation for Motorcycles.
This document serves as a replacement for GB/T 34590.9-2017 Road Vehicles -
Functional Safety - Part 9: Automotive Safety Integrity Level (ASIL)-oriented and
Safety-oriented Analyses. In comparison with GB/T 34590.9-2017, apart from
structural adjustments and editorial modifications, the main technical changes are as
follows:
-- The scope of application of the standard is revised from “mass-produced
passenger cars” to “mass-produced road vehicles other than mopeds” (see
Chapter 1; see Chapter 1 of the 2017 edition);
-- The adaptation requirements for motorcycles are added (see 4.5);
-- The adaptation requirements for goods vehicles, buses, special vehicles, and
trailers are added (see 4.6);
-- The objectives of requirements decomposition on ASIL tailoring are changed
(see 5.1; see 5.1 of the 2017 edition);
-- The general rules of the requirements decomposition on ASIL tailoring are
changed (see 5.2; see 5.2 of the 2017 edition);
-- The contents that the initial safety requirements shall be decomposed into
redundant safety requirements are changed (see 5.4.3; see 5.4.3 of the 2017
edition);
-- The contents that each decomposed safety requirement shall comply with the
initial safety requirement by itself are changed (see 5.4.4; see 5.4.4 of the 2017
edition);
-- The content “If the violation of an initial safety requirement cannot be prevented
by switching off the element, then adequate availability of the sufficiently
independent elements implementing the decomposed safety requirements shall
be shown” is deleted (see 5.4.8 of the 2017 edition);
-- The general rules of the criteria for the coexistence of elements are changed (see
6.2; see 6.2 of the 2017 edition);
-- The content “the safety requirements shall be assigned to sub-elements of
elements before the application of this chapter” is deleted (see 6.4.2 of the 2017
edition);
-- The contents “If sub-elements implementing requirements with different ASILs
coexist in the same element” are changed (see 6.4.4; see 6.4.5 of the 2017
edition);
-- The objectives of dependent failure analysis are changed (see 7.1; see 7.1 of the
2017 edition);
-- The general rules of dependent failure analysis are changed (see 7.2; see 7.2 of
the 2017 edition);
-- The prerequisites for dependent failure analysis are changed (see 7.3.1; see 7.3.1
of the 2017 edition);
-- The “repair error” is changed to “service failure” [see 7.4.4 e); see 7.4.4 e) of the
2017 edition];
-- The content “ageing and wear” is added [see 7.4.4 i)];
-- The requirement for the level of detail and rigor of dependent failure analysis is
added (see 7.4.8);
-- The verification basis requirements for dependent failure analysis are added (see
7.4.9);
-- The dependent failure analysis verification report is added (see 7.5.2);
-- The objectives of safety analysis are changed (see 8.1; see 8.1 of the 2017
edition);
-- The requirements and recommendations for safety analysis are changed (see
8.4.1; see 8.4.1 of the 2017 edition);
-- The safety analysis verification report is added (see 8.5.2).
This document is modified in relation to ISO 26262-9:2018 Road Vehicles - Functional
safety - Part 9: Automotive Safety Integrity Level (ASIL)-oriented and Safety-oriented
Analyses.
The technical differences between this document and ISO 26262-9:2018, and the causes
for these differences are as follows:
-- The description of T and B vehicles is changed from “trucks, buses, trailers, and
semi-trailers” to “goods vehicles, buses, special vehicles, and trailers” (see 4.6;
see 4.6 of ISO 26262-9:2018), so that the vehicle types are consistent with that
specified in GB/T 3730.1-2022 Terms and Definitions of Motor Vehicles,
Trailers and Combination Vehicle - Part 1: Types.
This document also makes the following editorial modifications:
-- The order of paragraphs in the Scope is adjusted;
-- The normatively referenced GB/T 34590.12-2022 is included in the list in
Chapter 2;
-- The addresses of the terminology database maintained by ISO and IEC for
standardization in Chapter 3 of ISO 26262-9:2018 are deleted;
-- The clause number 6.5.1 in ISO 26262-9:2018 is deleted.
Please be noted that certain content of this document may involve patents. The
institution issuing this document does not undertake the responsibility of identifying
these patents.
This document was proposed by the Ministry of Industry and Information Technology
of the People’s Republic ...