GB/T 34590.3-2022 PDF English
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Road vehicles -- Functional safety -- Part 3: Concept phase
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GB/T 34590.3-2022: PDF in English (GBT 34590.3-2022) GB/T 34590.3-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040
CCS T 35
Replacing GB/T 34590.3-2017
Road Vehicles - Functional Safety - Part 3: Concept Phase
(ISO 26262-3:2018, 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 ... 3
Introduction ... 8
1 Scope ... 12
2 Normative references ... 13
3 Terms and definitions ... 13
4 Requirements ... 14
4.1 Purpose... 14
4.2 General requirements ... 14
4.3 Interpretations of tables ... 14
4.4 ASIL-dependent requirements and recommendations ... 15
4.5 Adaptation for motorcycles ... 15
4.6 Adaptation for goods vehicles, buses, special vehicles, and trailers ... 16
5 Item definition ... 16
5.1 Objectives ... 16
5.2 General rules ... 16
5.3 Inputs to this chapter ... 16
5.4 Requirements and recommendations ... 16
5.5 Work products ... 18
6 Hazard analysis and risk assessment ... 18
6.1 Objectives ... 18
6.2 General rules ... 18
6.3 Inputs to this chapter ... 18
6.4 Requirements and recommendations ... 19
6.5 Work products ... 27
7 Functional safety concept ... 27
7.1 Objectives ... 27
7.2 General rules ... 27
7.3 Inputs to this chapter ... 28
7.4 Requirements and recommendations ... 28
7.5 Work products ... 32
Appendix A (Informative) Overview of and workflow of concept phase ... 34
Appendix B (Informative) Hazard analysis and risk assessment ... 36
References ... 49
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 3 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 34590.3-2017 Road Vehicles -
Functional Safety - Part 3: Concept phase. In comparison with GB/T 34590.3-2017,
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 the definition of related items are changed (see 5.1; see 5.1 of
the 2017 edition);
-- The content of the requirements of related items that shall be given is changed
(see 5.4.1; see 5.4.1 of the 2017 edition);
-- The content that shall be considered when defining the boundaries of related
items, their interfaces, and the assumptions of their interactions with other
related items and elements is changed (see 5.4.2; see 5.4.2 of the 2017 edition);
-- The content of the safety life cycle initiation is deleted (see Chapter 6 of the 2017
edition);
-- The requirements for supporting information for hazard analysis and risk
assessment are changed (see 6.3.2; see 7.3.2 of the 2017 edition);
-- The requirements for describing the operational situations where hazardous
events occur are changed (see 6.4.2.1; see 7.4.2.1 of the 2017 edition);
-- The requirements for determining hazards during hazard identification are
changed (see 6.4.2.2; see 7.4.2.2.1 of the 2017 edition);
-- The requirements for dealing with hazards beyond the scope of GB/T 34590 are
changed (see 6.4.2.4; see 7.4.2.2.5 of the 2017 edition);
-- The requirements for factors that shall be considered in the severity classification
are added (see 6.4.3.3);
-- The severity class analysis requirements for hazards limited to object damage
and not involving personal injury are changed (see 6.4.3.4; see 7.4.3.3 of the
2017 edition);
-- The requirements for estimating the controllability of hazardous events are
changed (see 6.4.3.8; see 7.4.3.7 of the 2017 edition);
-- The availability assessment requirements for hazards that do not affect the safe
operation of the vehicle are changed (see 6.4.3.9; see 7.4.3.8 of the 2017 edition);
-- The requirements for QM level are changed (see 6.4.3.10, 6.4.3.11, and Table 4;
see 7.4.4.1 and Table 4 of the 2017 edition);
-- The requirements for determining safety objectives are changed (see 6.4.4.1; see
7.4.4.3 of the 2017 edition);
-- The requirement that the assumptions used or derived from it shall be identified
in the process of hazard identification and risk assessment are added (see
6.4.4.4);
-- The difference management requirements for T&B vehicle hazard analysis and
risk assessment are added (see 6.4.5);
-- The requirements for verification of hazard analysis and risk assessment are
changed (see 6.4.6.1; see 7.4.5 of the 2017 edition);
-- The work products of hazard analysis and risk assessment are changed (see 6.5;
see 7.5 of the 2017 edition);
-- The objectives of the functional safety concept are changed (see 7.1; see 8.1 of
the 2017 edition);
-- The general requirements of the functional safety concept are changed (see 7.2;
see 8.2 of the 2017 edition);
-- The supporting information of the functional safety concept is changed (see 7.3.2;
see 8.3.2 of the 2017 edition);
-- The content of the derivation of functional safety requirements is changed (see
7.4.2.1; see 8.4.2.1 of the 2017 edition);
-- The requirements for strategies that the functional safety requirements shall
specify are added (see 7.4.2.3);
-- The requirements for making assumptions about the necessary actions of the
driver or other personnel are changed (see 7.4.2.7; see 8.4.2.6 of the 2017
edition);
-- The requirements for the allocation of functional safety requirements are
changed (see 7.4.2.8; see 8.4.3.1 of the 2017 edition);
-- The requirements when the functional safety concept relies on external measures
are changed (see 7.4.2.10; see 8.4.3.3 of the 2017 edition);
-- The requirements for safety validation criteria are changed (see 7.4.3; see 8.4.4
of the 2017 edition).
This document is modified in relation to ISO 26262-3:2018 Road Vehicles - Functional
safety - Part 3: Concept phase.
The technical differences between this document and ISO 26262-3:2018, and the causes
for these differences are as follows:
-- ISO 26262-1 is replaced by the normatively quoted GB/T 34590.1 to adapt to
the technical conditions of China;
-- The description of T&B vehicles is changed from “trucks, buses, trailers, and
semi-trailers” to “goods vehicles, buses, special vehicles, and trailers” (see 4.6),
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 clause numbers “6.4.6.1”, “7.4.3.1” and “7.4.4.1” are deleted, because there
is only one sub-clause in 6.4.6, 7.4.3, and 7.4.4;
-- ISO 26262-5:2018 is replaced by the informatively quoted GB/T 34590.5-2022;
-- ISO 26262-7:2018 is replaced by the informatively quoted GB/T 34590.7-2022;
-- ISO 26262-12:2018 is replaced by the informatively quoted GB/T 34590.12-
2022;
-- An example of the road type “city road” is added under E4 level in Table B.2 of
Appendix B.
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 the National Technical Committee of
Auto Standardization (SAC/TC114).
The drafting organizations of this document: China Automotive Technology and
Research Center Co., Ltd., Guangzhou Automobile Group Co., Ltd., FAW Jiefang
Automobile Co., Ltd., United Automotive Electronic Systems Co., Ltd., SAIC
Volkswagen Automotive Co., Ltd., SAIC Maxus Automobile Co., Ltd., JTEKT
Research and Development Center (Wuxi) Co., Ltd., Huawei Technologies Co., Ltd.,
Great Wall Motor Co., Ltd., Neusoft Reach Automotive Technology (Shenyang) Co.,
Ltd., Pan Asia Technical Automotive Center Co., Ltd., Nexteer Automotive (Suzhou)
Co., Ltd., Bosch Automotive Products (Suzhou) Co., Ltd., Weilai Automobile (Anhui)
Co., Ltd., China FAW Group Co., Ltd., Shenzhen DJI Technology Co., Ltd., Shanghai
G-Pulse Electronics Technology Co., Ltd., Beijing Borgward Automotive Co., Ltd.,
Contemporary Amperex Technology Co., Ltd., BYD Auto Industry Co., Ltd., Daimler
Greater China Co., Ltd., Midea Group (Shanghai) Co., Ltd., Huating (Hefei) Power
Technology Co., Ltd., WATTPACK Technology Co., Ltd., Zhuzhou CRRC Times
Electric Co., Ltd., Beijing Electric VEHICLE Co., Ltd., Yutong Bus Co., Ltd.,
Schaeffler (China) Co., Ltd., Dongfeng Motor Group Co., Ltd., Technology Center of
Shanghai Automotive Group Co., Ltd., SAIC-GM-Wuling Automobile Co., Ltd.,
ECARX (Hubei) Technology Co., Ltd., Suzhou Inovance Automotive Co., Ltd.,
AIWAYS Automobile (Shanghai) Co., Ltd., Beijing Jingwei Hirain Technologies Co.,
Road Vehicles - Functional Safety - Part 3: Concept Phase
1 Scope
This document specifies the requirements for the concept phase for automotive
applications, including the following:
-- item definition;
-- hazard analysis and risk assessment; and
-- functional safety concept.
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.
This document does not address unique E/E systems in special vehicles such as E/E
systems designed for drivers with disabilities.
NOTE: Other dedicated application-specific safety standards can complement this document or vice
versa.
Systems and their components released for production, or systems and their
components already under development prior to the publication date of this document,
are exempted from the scope of this edition. This document addresses alterations to
existing systems and their components released for production prior to the publication
of this document by tailoring the safety lifecycle depending on the alteration. This
document addresses integration of existing systems not developed according to this
document and systems developed according to this document by tailoring the safety
lifecycle according to this document.
This document addresses possible hazards caused by malfunctioning behaviour of
safety-related E/E systems, including interaction of these systems. It does not address
hazards related to electric shock, fire, smoke, heat, radiation, toxicity, flammability,
reactivity, corrosion, release of energy and similar hazards, unless directly caused by
malfunctioning behaviour of safety-related E/E systems.
This document describes a framework for functional safety to assist the development
of safety-related E/E systems. This framework is intended to be used to integrate
functional safety activities into a company-specific development framework. Some
requirements have a clear technical focus to implement functional safety into a product;
others address the development process and can therefore be seen as process
requirements in order to demonstrate the capability of an organization with respect to
NOTE 1: In general, each hazard will have a variety of potential causes related to the item's
implementation, but these causes do not need to be considered in the hazard analysis and risk assessment
for the analysis of the malfunctioning behaviour.
NOTE 2: Only hazards associated with malfunctioning behaviour of the item are considered; every other
system (external measure) is presumed to be functioning correctly provided it is sufficiently independent.
6.4.2.4 If there are hazards identified in this chapter that are outside of the scope of
GB/T 34590 (see Chapter 1), then these hazards shall be addressed according to
organization specific procedures.
NOTE: As these hazards are outside the scope of GB/T 34590, this document does not provide guidance
for ASIL compliance of these hazards. Such hazards are classified according to the procedures of the
applicable safety discipline.
6.4.2.5 Relevant hazardous events shall be determined.
6.4.2.6 The consequences of hazardous events shall be identified.
NOTE: If malfunctioning behaviour induces the loss of several functions of the item, then the situation
analysis and hazard identification consider the combined effects.
EXAMPLE 1: Loss of the functionality of a braking system (ESC) can lead to the simultaneous
unavailability of driver assistance functions.
EXAMPLE 2: Failure of the vehicle's electrical power supply system can lead to a simultaneous loss of
a number of functions including "engine torque", "power assisted steering" and "forward illumination".
6.4.2.7 It shall be ensured that the chosen level of detail of the list of operational
situations does not lead to an inappropriate lowering of the ASIL.
NOTE: A very detailed list of operational situations (see 6.4.2.1) for one hazard, with regard to the
vehicle state, road conditions and environmental conditions, can lead to a fine granularity of situations
for the classification of hazardous events. This can make it easier to rate controllability and severity.
However, a larger number of different operational situations can lead to a consequential reduction of the
respective classes of exposure, and thus to an inappropriate lowering of the ASIL. This can be avoided
by aggregating similar situations.
6.4.3 Classification of hazardous events
6.4.3.1 All hazardous events identified in 6.4.2 shall be classified, except those that are
outside the scope of GB/T 34590.
NOTE: If classification of a given hazard with respect to severity (S), probability of exposure (E) or
controllability (C) is difficult to make, it is classified conservatively, i.e. whenever there is a reasonable
doubt, a higher S, E or C classification is chosen.
6.4.3.2 The severity of potential harm shall be estimated based on a defined rationale
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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