GB/T 34590.4-2022Road vehicles - Functional safety - Part 4: Product development at the system level (English PDF)

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 4 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 of GB/T 34590.4-2017 Road Vehicles - Functional

Safety - Part 4.Product development at the system level. In comparison with GB/T 34590.4-

2017, apart from structural adjustments and editorial modifications, the main technical changes

are as follows.

-- MODIFY the Scope, from "series production passenger cars" into "series production

road vehicles, excluding mopeds" (see Clause 1; Clause 1 of Version 2017);

-- ADD the adaptation for motorcycles (see 4.5);

-- ADD the adaptation for trucks, buses, trailers and semi-trailers (see 4.6);

-- MODIFY the content of Clause 5, from "Product development at the starting system

level" into "General topics for the product development at the system level" (see Clause

5; Clause 5 of Version 2017);

-- MODIFY the objectives of Clause 5 (see 5.1; 5.1 of Version 2017);

-- DELETE the content of "Inputs of this clause", "Requirements and suggestions", "Work

products" in Clause 5 (see 5.3, 5.4, 5.5 of Version 2017);

-- MODIFY the content of Clauses 6 and 7 of Version 2017, refining the development

objectives of the technical safety concept phase (see 6.1; 6.1, 7.1 of Version 2017);

-- MODIFY the description of the general principles of the technical safety concept (see

6.2; 6.2 of Version 2017);

-- MODIFY the requirements for the specification of the technical safety requirements (see

6.4.1; 6.4.1 of Version 2017);

-- MODIFY the requirements for the specification of the safety mechanism (see 6.4.2;

2022 Terms and Definitions of Motor Vehicles, Trailers and Combination vehicle - Part

1 Types.

This document also makes the following editorial modifications.

-- MODIFY the introduction and expression of the international standard.

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 of China.

This document shall be under the jurisdiction of National Technical Committee 114 on Auto of

Standardization Administration of China (SAC/TC 114).

The drafting organizations of this document. China Automotive Technology and Research

Center Co., Ltd.; BYD Auto Industry Co., Ltd.; Nexteer Automotive (Suzhou) Co., Ltd.;

Huawei Technologies Co., Ltd.; Schaeffler (China) Co., Ltd.; NIO Automobile (Anhui) Co.,

Ltd.; SAIC VOLKSWAGEN Co., Ltd.; NIO Inc.; Pan Asia Technical Automotive Center Co.,

Ltd.; United Automotive Electronic Systems; FAW Jiefang Automotive Company; JTEKT

Research and Development Center (Wuxi) Co., Ltd.; Beijing Borgward Automotive Co., Ltd.;

Beijing Horizon Robotics Technology R&D Co., Ltd.; Infineon Technology (China) Co., Ltd.;

Shanghai G-PULSE Electronics Technology Co., Ltd.; iMotion Automotive Technology

(Suzhou) Co., Ltd.; Hitachi Astemo Automotive Systems (Shanghai) Co., Ltd.; SINCODE

Technology (Taizhou) Co., Ltd.; Shanghai SenseTime Lingang Intelligent Technology Co., Ltd.;

Hella Shanghai Electronics Co., Ltd.; Hubei ECARX Technologies Co., Ltd.; Dongfeng Motor

Group Co., Ltd.; Technology Center of SAIC Motor Co., Ltd.; SAIC GM Wuling Automobile

Co., Ltd.; Shanghai NIO Automobile Co., Ltd.; Daimler Greater China Ltd.; BOSCH Auto Parts

(Suzhou) Co., Ltd.; China FAW Group Co., Ltd.; Shanghai Hesai Technology Co., Ltd.;

Dongfeng Liuzhou Automobile Co. Ltd.; Neusoft (Dalian) Corporation; Great Wall Motor Co.,

Ltd.; Suzhou Inovance United Power System Co., Ltd.; BAIC BJEV Co., Ltd.; YUTONG

Group Co., Ltd.; SAIC VOLKSWAGEN (China) Investment Co., Ltd.; Zhuzhou CRRC Times

Electric Co., Ltd.; Beijing Jingwei Hirain Technologies Co., Ltd.; SVOLT Energy Technology

Co., Ltd.

1 Scope

This document specifies the requirements for product development at the system level for

automotive applications, including the following.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their

content constitutes requirements of this document. For dated references, only the edition cited

applies. For undated references, the latest edition of the referenced document (including any

amendments) applies.

GB/T 34590.1-2022 Road vehicles - Functional safety - Part 1.Vocabulary (ISO 26262-

1.2018, MOD)

3 Terms and definitions

For the purposes of this document, the terms, definitions and abbreviated terms given in GB/T

34590.1-2022 apply.

4 Requirements

For alternative entries, an appropriate combination of methods shall be applied in accordance

with the ASIL indicated, independent of whether they are listed in the table or not. If methods

are listed with different degrees of recommendation for an ASIL, the methods with the higher

recommendation should be preferred. A rationale shall be given that the selected combination

of methods or even a selected single method complies with the corresponding requirement.

5 General topics for the product development at the system level

The objective of this clause is to provide an overview of product development at the system

level.

The necessary activities during the development of a system are given in Figure 2.In an iterative

process, the technical safety concept is developed, incorporating technical safety requirements

and the system architectural design.

6 Technical safety concept

The technical safety concept is an aggregation of the technical safety requirements and the

corresponding system architectural design that provides rationale as to why the system

architectural design is suitable to fulfil safety requirements resulting from activities described

in GB/T 34590.3-2022 (with consideration of non-safety requirements) and design constraints.

7 System and item integration and testing

The integration of the item's elements is carried out in a systematic way starting from software-

hardware integration and verification through system integration and verification to vehicle

integration and verification. Specified integration tests are performed at each integration stage

to provide evidence that the integrated elements interact correctly.

8 Safety validation

Safety goals shall be validated giving consideration to variance in operation that impacts

the technical characteristics, which have been considered in the hazard analysis and risk

assessment.

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