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GB/T 34590.1-2022 (GB/T34590.1-2022)

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GB/T 34590.1-2022: PDF in English (GBT 34590.1-2022)

GB/T 34590.1-2022
ICS 43.040
CCS T 35
Replacing GB/T 34590.1-2017
Road Vehicles - Functional Safety - Part 1: Vocabulary
(ISO 26262-1:2018, MOD)
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 ... 12
3 Terms and Definitions ... 13
4 Abbreviated terms ... 48
Bibliography ... 53
English indexes ... 54
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 1 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 34590.1-2017 Road Vehicles - Functional
Safety - Part 1: Vocabulary. In comparison with GB/T 34590.1-2017, apart from structural
adjustments and editorial modifications, the main technical changes are as follows:
-- The Scope is modified from “series production passenger cars” into “series production
road vehicles, excluding mopeds”, and the description of the Scope is modified (see
Chapter 1; Chapter 1 of Version 2017);
-- The definitions of 92 terms are modified: architecture, ASIL decomposition, assessment,
audit, automotive safety integrity level (ASIL), availability, baseline, branch coverage,
calibration data, cascading failure, common cause failure (CCF), component;
configuration data, confirmation review, degradation, dependent failures, detected fault,
development interface agreement (DIA), diagnostic coverage (DC), diagnostic test time
interval, distributed development, diversity, dual-point failure, electrical and / or
electronic system (E/E), element, embedded software, emergency operation,
emergency operation time interval (EOTI), error, exposure, failure, failure mode, fault,
fault model, fault reaction time interval (FRTI), fault tolerant time interval (FTTI),
formal notation, formal verification, functional safety concept, functional safety
requirement, hardware architectural metrics, hardware part, independence, independent
failures, informal notation, inspection, intended functionality, item, latent fault, model-
based development (MBD), modification, multiple-point failure, multi-point fault, new
development, non-functional hazard, operating mode, operating time, operational
situation, other technology, perceived fault, permanent fault, phase, proven in use
argument, random hardware failure, reasonably foreseeable, redundancy, residual fault,
review, safe state, safety activity, safety case, safety culture, safety goal, safety manager,
safety measure, safety mechanism, safety-related function, safety-related special
characteristic, safety validation, severity, single-point failure, single-point fault,
subphase, system, technical safety concept, testing, verification, verification review,
walk-through, warning and degradation strategy, well-trusted, work product (see 3.1,
3.3, 3.4, 3.5, 3.6, 3.7, 3.10, 3.13, 3.15, 3.17, 3.18, 3.21, 3.22, 3.24, 3.28, 3.29, 3.31,
3.32, 3.33, 3.35, 3.36, 3.37, 3.38, 3.40, 3.41, 3.42, 3.43, 3.44, 3.46, 3.48. 3.50, 3.51,
3.54, 3.58, 3.59, 3.61, 3.63, 3.64, 3.68, 3.69, 3.70, 3.71, 3.78, 3.79, 3.80, 3.82, 3.83,
3.84, 3.85, 3.90, 3.91, 3.96, 3.97, 3.99, 3.100, 3.102, 3.103, 3.104, 3.105, 3.108, 3.109,
3.110, 3.115, 3.118, 3.120, 3.122, 3.125, 3.127, 3.131, 3.133, 3.136, 3.137, 3.139, 3.140,
3.141, 3.142, 3.145, 3.147, 3.148, 3.154, 3.155, 3.156, 3.161, 3.163, 3.167, 3.169, 3.180,
3.181, 3.182, 3.183, 3.184, 3.185; 2.3, 2.7, 2.4, 2.5, 2.6, 2.8, 2.9, 2.10, 2.11, 2.13, 2.14,
2.15, 2.16, 2.18, 2.21, 2.22, 2.23, 2.24, 2.25, 2.26, 2.27, 2.28, 2.29, 2.31, 2.32, 2.33,
2.34, 2.35, 2.36, 2.37, 2.39, 2.40, 2.42, 2.43, 2.44, 2.45, 2.47, 2.48, 2.52, 2.53, 2.54,
2.55, 2.61, 2.62, 2.63, 2.67, 2.68, 2.69, 2.71, 2.74, 2.75, 2.76, 2.77, 2.79, 2.80, 2.81,
2.82, 2.83, 2.84, 2.87, 2.88, 2.89, 2.90, 2.92, 2.93, 2.94, 2.96, 2.98, 2.102, 2.104, 2.106,
2.107, 2.108, 2.109, 2.110, 2.111, 2.114, 2.115, 2.116, 2.120, 2.121, 2.122, 2.128, 2.129,
2.132, 2.134, 2.137, 2.138, 2.139, 2.140, 2.141, 2.142 of Version 2017);
-- 51 terms and definitions are added: ASIL capability, base failure rate (BFR), base vehicle,
body builder (BB), body builder equipment, bus, common mode failure (CMF),
complete vehicle, coupling factors, dependent failure initiator (DFI), diagnostic points,
emergency operation tolerance time interval (EOTTI), expert rider, failure mode
coverage (FMC), fault detection time interval (FDTI), fault handling time interval
(FHTI), fault injection, fault tolerance, hardware elementary subpart, hardware subpart,
management system, maximum time to repair time interval, modified condition /
decision coverage (MC / DC), motorcycle, motorcycle safety integrity level (MSIL),
multi-core, observation points, physics of failure (PoF), power take-off (PTO),
processing element (PE), programmable logic device (PLD), quality management
(QM), random hardware fault, rebuilding, remanufacturing, safety anomaly, safety
element out of context (SEooC), safety-related incident, semi-trailer, series production
road vehicle, supply agreement, target environment, tractor, trailer, transducer, goods
vehicle, T&B vehicle configuration, variance in T&B vehicle operation, vehicle
function, vehicle operating state, special vehicle (see 3.2, 3.8, 3.9, 3.11, 3.12, 3.14, 3.19,
3.20, 3.26, 3.30, 3.34, 3.45, 3.47, 3.52, 3.55, 3.56, 3.57, 3.60, 3.72, 3.73, 3.87, 3.89,
3.92, 3.93, 3.94, 3.95, 3.101, 3.111, 3.112, 3.113, 3.114, 3.117, 3.119, 3.121, 3.124,
3.134, 3.138, 3.146, 3.151, 3.152, 3.162, 3.166, 3.170, 3.171, 3.172, 3.174, 3.175, 3.177,
3.178, 3.179, 3.186);
-- 6 terms and definitions are deleted: allocation, anomaly, homogeneous redundancy,
initial ASIL, item development, special-purpose vehicle (see 2.1, 2.2, 2.60, 2.66, 2.70,
2.126 of Version 2017);
-- 7 abbreviations are modified ACC, ASIC, E / E, FIT, FPGA, HAZOP, SOP (see Chapter
4; Chapter 3 of Version 2017);
-- 59 abbreviations are added: ADC, ALU, BB, BFR, CCP, CMOS, DA, DFA, DFI, DMA,
SPFM, SPI, T&B, TCL, TD, TI, UV (see Chapter 4);
-- 6 abbreviations are deleted: d.c., DSC, EDC, SIL, SRS, V&V (see Chapter 3 of Version
This document has been modified using ISO 26262-1:2018 Road Vehicles - Functional Safety
- Part 1: Vocabulary.
The technical differences between this document and ISO 26262-1:2018, and the causes for
these differences are as follows:
-- The terms and definitions of bus, passenger car, semi-trailer and trailer are modified (see
3.14, 3.107, 3.151 and 3.171), so as to maintain the consistency with the definitions in
GB/T 3730.1-2022;
-- The term and definition of truck in ISO 26262-1:2018 is deleted, so as to maintain the
consistency with the types of vehicles specified in GB/T 3730.1-2022;
-- The term and definition of goods vehicle is added (see 3.174), so as to maintain the
consistency with the definition in GB/T 3730.1-2022;
-- The term and definition of special vehicle is added (see 3.186), so as to maintain the
consistency with the types of vehicles specified in GB/T 3730.1-2022;
-- The term and definition of motorcycle is modified (see 3.93), so as to maintain the
consistency with the definition in GB/T 5359.1-2019;
-- The description of the abbreviation T&B is modified (see Chapter 4), so as to maintain
the consistency with the types of vehicles specified in GB/T 3730.1-2022.
This document also makes the following editorial modifications:
-- The sequence of paragraphs in the Scope is adjusted;
-- The informative reference GB/T 34590.2-2022 is used to replace ISO 26262-2:2018;
-- The informative reference GB/T 34590.8-2022 is used to replace ISO 26262-8:2018;
-- The informative reference GB/T 34590.9-2022 is used to replace ISO 26262-9:2018;
-- The informative reference GB/T 34590.10-2022 is used to replace ISO 26262-10:2018;
-- The informative reference GB/T 34590.11-2022 is used to replace ISO 26262-11:2018;
-- The informative reference GB/T 34590.12-2022 is used to replace ISO 26262-12:2018;
-- The informative reference GB/T 18305 is used to replace IAIF 16949.
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.; SAIC VOLKSWAGEN Co., Ltd.; NIO Inc.; Pan Asia Technical Automotive
Center Co., Ltd.; United Automotive Electronic Systems; SAIC MAXUS Co., Ltd.; Technology
Center of SAIC Motor Co., Ltd.; FAW Jiefang Automotive Company; Beijing Horizon Robotics
Technology R&D Co., Ltd.; Shanghai SenseTime Lingang Intelligent Technology Co., Ltd.;
Schaeffler (China) Co., Ltd.; Dongfeng Motor Group Co., Ltd.; BOSCH Auto Parts (Suzhou)
Co., Ltd.; Nexteer Automotive (Suzhou) Co., Ltd.; Shanghai NIO Automobile Co., Ltd.;
Neusoft (Dalian) Corporation; Infineon Technology (China) Co., Ltd.; Beijing Borgward
Automotive Co., Ltd.; BYD Auto Industry Co., Ltd.; Beijing Walter Times Electric Vehicle
Technology Co., Ltd.; Great Wall Motor Co., Ltd.; CATL Contemporary Amperex Technology
Co., Ltd.; Shanghai G-PULSE Electronics Technology Co., Ltd.; BAIC Motor Co., Ltd.; China
FAW Group Co., Ltd.; SAIC GM Wuling Automobile Co., Ltd.; SAIC VOLKSWAGEN (China)
Investment Co., Ltd.; Shanghai Hesai Technology Co., Ltd.; YUTONG Group Co., Ltd.;
Human Horizons (Jiangsu) Technology Co., Ltd.; Aiways Automobile (Shanghai) Co., Ltd.;
Tianjin Internal Combustion Engine Research Institute (Tianjin Motorcycle Technology
Center); Hella Shanghai Electronics Co., Ltd.; SINOEV (Hefei) Technologies Co., Ltd.;
SVOLT Energy Technology Co., Ltd.; SINCODE Technology (Taizhou) Co., Ltd.; Suzhou
Inovance United Power System Co., Ltd.; Beijing Baidu Zhixing Technology Co., Ltd.;
CRRCTIMES Electric Vehicle Co., Ltd.; Daimler Greater China Ltd.
The main drafters of this document: Li Bo, Zhang Lemin, Zhou Yu, Shang Shiliang, Fu Yue,
Ming Yue, Li Jiang, Li Hongbo, Zhang Lijun, Yang Hu, Bai Xiaoyu, Yao Zhaojuan, Huang
Haowei, Zhang Chan, Qian Yang, Tong Fei, Shao Haihe, Wang Haoyu, Meng Lingjun, Zhang
Xiang, Zhao Tianli, Han Bing, Zhuang Ping, Wu Shaohua, Wu Guanjun, Zhou Dongdong,
Road Vehicles - Functional Safety - Part 1: Vocabulary
1 Scope
This document defines the terms and definitions applied in GB/T 34590, as well as the
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 exist and 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.
This document addresses possible hazards caused by malfunctioning behavior 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 behavior 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 functional safety.
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 34590.3-2022 Road Vehicles - Functional Safety - Part 3: Concept Phase (ISO 26262-
3:2018, MOD)
NOTE: there is no technical difference between the quoted content in GB/T 34590.3-2022 and the
quoted content in ISO 26262-3:2018.
GB/T 34590.4-2022 Road Vehicles - Functional Safety - Part 4: Product Development at the
System Level (ISO 26262-4:2018, MOD)
NOTE: there is no technical difference between the quoted content in GB/T 34590.4-2022 and the
quoted content in ISO 26262-4:2018.
GB/T 34590.5-2022 Road Vehicles - Functional Safety - Part 5: Product Development at the
Hardware Level (ISO 26262-5:2018, MOD)
NOTE: there is no technical difference between the quoted content in GB/T 34590.5-2022 and the
quoted content in ISO 26262-5:2018.
GB/T 34590.6-2022 Road Vehicles - Functional Safety - Part 6: Product Development at the
Software Level (ISO 26262-6:2018, MOD)
NOTE: there is no technical difference between the quoted content in GB/T 34590.6-2022 and the
quoted content in ISO 26262-6:2018.
GB/T 34590.7-2022 Road Vehicles - Functional Safety - Part 7: Production, Operation, Service
and Decommissioning (ISO 26262-7:2018, MOD)
NOTE: there is no technical difference between the quoted content in GB/T 34590.7-2022 and the
quoted content in ISO 26262-7:2018.
3 Terms and Definitions
The following terms and definitions are applicable to this document.
3.1 architecture
representation of the structure of the item (3.84) or element (3.41) that allows identification of
building blocks, their boundaries and interfaces, and includes the allocation of requirements to
these building blocks
3.2 ASIL capability
capability of the item (3.84) or element (3.41) to meet assumed safety (3.132) requirements
assigned with a given ASIL (3.6)
NOTE: as a part of hardware safety requirements, achievement of the corresponding random
Creation of a new item (3.84) from an existing item (3.84)
NOTE: modification is used in GB/T 34590 with respect to re-use for lifecycle (3.86) tailoring. A
change is applied during the lifecycle (3.86) of an item (3.84), while a modification is
applied to create a new item (3.84) from an existing one.
3.92 modified condition/decision coverage; MC/DC
percentage of all single condition outcomes that independently affect a decision outcome that
have been exercised in the control flow
NOTE: MC/DC is a type of code coverage analysis. It builds on top of branch coverage (3.13),
and as such, it too requires that all code blocks and all execution paths have been tested.
3.93 motorcycle
road vehicle with two or three wheels driven by a power plant, the maximum design speed of
which is greater than 50 km/h, or one of the following conditions is satisfied:
---if internal combustion engine is used, its displacement is greater than 50 mL;
---if electric drive is used, the sum of the maximum continuous rated power of the motor
is greater than 4 kW.
However, the following category is not included:
motorized wheelchairs for the disabled, whose maximum design speed, complete vehicle curb
weight and external dimensions comply with relevant national standards and regulations.
[source: GB/T 5359.1-2019, 2.1]
3.94 motorcycle safety integrity level; MSIL
one of four levels that specify the item’s (3.84) or element's (3.41) necessary GB/T 34590 risk
(3.128) reduction requirements and convert to ASIL (3.6) for safety measures (3.141) to apply
for avoiding unreasonable residual risk (3.126) for items (3.84) and elements (3.41) used
specifically in motorcycle (3.93) applications, with D representing the most stringent and A the
least stringent level
3.95 multi-core
hardware component (3.21) which includes two or more hardware processing elements (3.113)
which can operate independently from each other
3.96 multiple-point failure
failure (3.50), resulting from the combination of several independent hardware faults (3.54),
which leads directly to the violation of a safety goal (3.139)