GB/T 43253.2-2023Road vehicles—Functional safety audit and assessment method—Part 2: Concept phase and system level (English PDF)

Foreword

This document is drafted in accordance with the rules given in GB/T 1.1-2020 "Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents".

This document is Part 2 of GB/T 43253 "Road vehicles - Functional safety audit and assessment method". The following parts of GB/T 43253 have been issued.

- Part 1: General requirements;

- Part 2: Concept phase and system level;

- Part 3: Software level;

- Part 4: Hardware level.

1 Scope

This document specifies the requirements and methods for carrying out functional safety audits and assessments of functional safety-related activities and work results at the concept stage and system level of safety-related electrical/electronic (E/E) systems, so as to inspect and judge the development process and conformity of work products with respect to functional safety.

This document applies to safety-related systems containing one or more electrical/electronic (E/E) systems installed on production road vehicles other than mopeds.

This document does not apply to specific electrical/electronic (E/E) systems on special purpose vehicles, for example, vehicle systems designed for disabled drivers.

2 Normative references

The following referenced documents are indispensable for the application 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 34590.1~34590.12-2022, Road vehicles -- Functional safety -- Part 1. Vocabulary

GB/T 43253.1-2023, Road vehicles -- Functional safety audit and assessment method -- Part 1: General requirements

GB/T 43253.3-2023, Road vehicles -- Functional safety audit and assessment method -- Part 3: Software level

GB/T 43253.4-2023, Road vehicles -- Functional safety audit and assessment method -- Part 4: Hardware level

3 Terms and definitions

For the purposes of this document, the terms and definitions defined in GB/T 34590.1-2022 apply.

4 General requirements

The audit and assessment requirements defined in GB/T 43253.1-2023 apply to this document.

Functional safety audits and assessments at the conceptual stage and system level mainly involve the following contents. […]

5 Definition of related item

6 Hazard analysis and risk assessment

7 Functional safety concept

8 Technology safety concept

9 Verification and validation

Annex A (informative)

Definition of related items Instructions and examples for audit and assessment of related item definitions are provided in Table A.1.

Annex B (informative)

Hazard analysis and risk assessment The instructions and examples of audit and assessment of hazard analysis and risk assessment are shown in Table B.1 and Table B.2. […]