GB/T 34590.11-2022Road vehicles - Functional safety - Part 11: Guidelines on applications to semiconductors (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 11 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.

The revision of this document adopts ISO 26262-11.2018 "Road vehicles - Functional safety -

Part 11.Guidelines on applications of ISO 26262 to semiconductors".

The technical differences between this document and ISO 26262-11.2018 and their reasons are

as follows.

- Replace ISO 26262-1 with the normative reference GB/T 34590.1-2022 to adapt to the

technical conditions of China.

The following editorial changes are made to this document.

- Delete the number of "4.1.1";

- Change the sub-clause numbers 4.3, 4.6.2.1.1, 4.6.2.1.2, 5.5.2, A.1.3 to make the structure

more complete.

Attention is drawn to the possibility that some of the elements of this document may be the

subject of patent rights. The issuing authority shall not be held responsible for identifying any

or all such patent rights.

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., Infineon Technologies (China) Co., Ltd., Beijing Horizon Robot Technology

Research and Development Co., Ltd., Valeo Automotive Internal Control (Shenzhen) Co., Ltd.,

Amou Technology (China) Co., Ltd., Huawei Technologies Co., Ltd. Company, Bosch Auto

Parts (Suzhou) Co., Ltd., Zhuzhou CRRC Times Electric Co., Ltd., Beijing National New

Energy Vehicle Technology Innovation Center Co., Ltd., SAIC Volkswagen Co., Ltd., Great

Wall Motor Co., Ltd., Shanghai Shuimu Bluewhale Semiconductor Technology Co., Ltd.

Company, BYD Auto Industry Co., Ltd., Schaeffler (China) Co., Ltd., Beijing Baowo

Automobile Co., Ltd., Shanghai Jinmai Electronic Technology Co., Ltd., China FAW Group

Co., Ltd., Beijing Baidu Zhixing Technology Co., Ltd., CRRC Times Electric Vehicle Co., Ltd.,

Ningde Times New Energy Technology Co., Ltd., Hubei Yikatong Technology Co., Ltd.,

Youmuyu Information Technology (Shanghai) Co., Ltd., SAIC Maxus Automobile Co., Ltd.,

AIWAYS Automobile (Shanghai) Co., Ltd., Beijing Jingwei Hengrun Technology Co., Ltd.,

Nanjing Xinchi Semiconductor Technology Co., Ltd., Weilai Automobile (Anhui) Co., Ltd.,

Zhixing Automobile Technology (Suzhou) Co., Ltd., Honeycomb Energy Technology Co., Ltd.,

Suzhou Inovance United Power System Co., Ltd., Pan Asia Automotive Technology Center Co.,

Ltd., BAIC Motor Co., Ltd., Shanghai Hella Electronics Co., Ltd., ZF Automotive Technology

(Shanghai) Co., Ltd., Vitesco Technology Investment (China) Co., Ltd.

1 Scope

This document is intended to be applied to safety-related systems that include one or more

electrical and/or electronic (E/E) systems and that are installed in series production road

vehicles, excluding mopeds.

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 34590.1-2022, Road vehicles - Functional safety - Part 1.Vocabulary (ISO 26262-

1.2018, MOD)

3 Terms and definitions

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

apply.

4 A semiconductor component and its partitioning

Random hardware faults and failure modes of an integrated circuit are linked together as shown

in Figure 3 below.

A failure mode is described at a level of detail commensurate with the safety concept and the

related safety mechanism.

5 Specific semiconductor technologies and use cases

Memory fault models can vary depending on the memory architecture and memory technology.

Typical fault models of semiconductor memories are shown in Table 29.The listing is not

exhaustive and can be adjusted based on additional known faults or depending on the

application.

One of the key aspects for the safety analysis of analogue elements is the proper identification

of the granularity of the analysis. On one hand, a lower level of granularity is beneficial as it

0.2% FSR.

Annex A

(informative)

Example on how to use digital failure modes for diagnostic coverage evaluation

The following is the DMA use case considered in this example.

For the evaluation, the failure modes are further elaborated.

Annex B

(informative)

Examples of dependent failure analysis

The microcontroller component described in Figure B.1 is used to illustrate the dependent

failure analysis methodology for a digital component.

Annex C

(informative)

Examples of quantitative analysis for a digital component

The following is an example of a quantitative analysis using the method described in 5.1.7.

......