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GB/T 34590.5-2022: Road vehicles - Functional safety - Part 5: Product development at the hardware level Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 34590.5: Historical versions
Similar standardsGB/T 34590.5-2022: Road vehicles - Functional safety - Part 5: Product development at the hardware level---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT34590.5-2022 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.040 CCS T 35 Replacing GB/T 34590.5-2017 Road Vehicles - Functional Safety - Part 5.Product development at the hardware level (ISO 26262-5.2018, 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 ContentsForeword... 4 Introduction... 8 1 Scope... 12 2 Normative references... 13 3 Terms and definitions... 14 4 Requirements... 14 4.1 Purpose... 14 4.2 General requirements... 14 4.3 Interpretations of tables... 15 4.4 ASIL-dependent requirements and recommendations... 16 4.5 Adaptation for motorcycles... 16 4.6 Adaptation for cargo trucks, buses, special vehicles, trailers... 16 5 General topics for the product development at the hardware level... 16 5.1 Objectives... 16 5.2 General... 16 6 Specification of hardware safety requirements... 18 6.1 Objectives... 18 6.2 General... 18 6.3 Inputs to this clause... 18 6.4 Requirements and recommendations... 19 6.5 Work products... 21 7 Hardware design... 21 7.1 Objectives... 21 7.2 General... 22 7.3 Inputs to this clause... 22 7.4 Requirements and recommendations... 23 7.5 Work products... 29 8 Evaluation of the hardware architectural metrics... 29 8.1 Objectives... 29 8.2 General... 29 8.3 Inputs of this clause... 30 8.4 Requirements and recommendations... 31 8.5 Work products... 36 9 Evaluation of safety goal violations due to random hardware failures... 36 9.1 Objectives... 36 9.2 General... 36 9.3 Inputs to this clause... 37 9.4 Requirements and recommendations... 37 9.5 Work products... 49 10 Hardware integration and verification... 49 10.1 Objectives... 49 10.2 General... 49 10.3 Inputs of this clause... 49 10.4 Requirements and recommendations... 50 10.5 Work products... 52 Annex A (informative) Overview of and workflow of product development at the... 53 hardware level... 53 Annex B (informative) Failure mode classification of a hardware element... 56 Annex C (informative) Hardware architectural metrics... 58 Annex D (informative) Evaluation of the diagnostic coverage... 65 Annex F (informative) Example calculation of hardware architectural metrics. "single point fault metric" and "latent-fault metric"... 89 Annex F (informative) Example for rationale that objectives of Clause 9 in accordance with 4.2 are met... 96 Annex G (informative) Example of a PMHF budget assignment for an item consisting of two systems... 102 Annex H (informative) Example of latent fault handling... 106 Bibliography... 110ForewordThis 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 5 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 replaces GB/T 34590.5-2017 "Road vehicles - Functional safety - Part 5. Product development at the hardware level". Compared with GB/T 34590.5-2017, the main technical changes in this document are as follows. - Change the scope of application of the standard from "mass-produced passenger cars" to "mass-produced road vehicles other than mopeds" (see Clause 1 of this Edition, Clause 1 of Edition 2017); - Add the suitability requirements for motorcycles (see 4.5 of this Edition); - Add the applicability requirements for cargo trucks, buses, special vehicles and trailers (see 4.6 of this Edition); - Change the title of Clause 5 (see Clause 5 of this Edition, Clause 5 of Edition 2017); - Change the description about the purpose (see 5.1 of this Edition, 5.1 of Edition 2017); - Change Figure 2 (see 5.2 of this Edition, 5.2 of Edition 2017); - Delete the content in 5.3, 5.4, and 5.5 about "inputs, requirements and suggestions, and work products of this Clause" (see Annex D of Edition 2017); - Delete "safety plan (refined)" (see 6.3.1 of Edition 2017); - Add hardware specification (from outside) (see 6.3.2 of this Edition); - Change the description about the purpose (see 7.1 of this Edition, 7.1 of Edition 2017); - Delete the safety plan (refined) (see 7.3.1 of Edition 2017); - Add non-safety-related hardware requirements specification (from outside) (see 7.3.2 of this Edition); - Change Table 1 from "modular hardware design principles" to "hardware architecture design principles" (see 7.4.1.6 of this Edition, 7.4.1.6 of Edition 2017); - Add requirements for noise factors (see 7.4.1.7 of this Edition); - Add requirements for ASIL (A) (see 7.4.3.3 of this Edition); - Add requirements for ASIL (A) (see 7.4.3.4 of this Edition); - Add the content about "provide evidence according to the hardware design verification methods listed in Table 3" (see 7.4.4.1 of this Edition); - Add the requirement to verify the validity of assumptions of SEooC (see 7.4.4.3 of this Edition); - Add requirements for the production, operation, service and scrapping of hardware elements generated during the hardware design process (see 7.4.5.5 of this Edition); - Add the requirements for "additional safety mechanisms" in items a) and b) (see 8.4.4 of this Edition); - Add examples of formulas related to SPFM target values (see 8.4.7 of this Edition); - Change the description of the general provisions (see 9.2 of this Edition, 9.2 of Edition 2017); - Add the content about "ASIL application level of this requirement" (see 9.4.1.1 of this Edition); - Add the content of the argument "to prove that the probability of a single point of failure of a single hardware component is sufficiently low" (see 9.4.1.2 of this Edition); - Add the content of the argument "to prove that the probability of residual failure of a hardware component is sufficiently low" (see 9.4.1.3 of this Edition); - Add the requirements for multiple systems constituting related items (see 9.4.2.3 of this Edition); - Delete the content about "failure rate combination and scale factor conversion" (see 9.4.2.7 of Edition 2017); - Add applicable ASIL levels (see 9.4.3.4 of this Edition); - Delete the content of failure rate conversion (see 9.4.3.12 of Edition 2017); - Add the requirements for acceptable conditions for double-point failures that may be caused by double-point failures (see 9.4.3.12 of this Edition); - Add the content about "conditions leading to possible double-point failure when the requirements of 9.4.3.11 or 9.4.3.12 cannot be met" (see 9.4.3.13 of this Edition); - Change the title of Clause 10 (see Clause 10 of this Edition, Clause 10 of Edition 2017); - Delete the hardware security requirements specification and hardware design specification (see 10.3.1 of Edition 2017); - Delete the project plan (refinement) (see 10.3.2 of Edition 2017); - Add examples and qualification requirements for safety-related hardware components (see 10.4.3 of this Edition); - Change the title of Table 12 (see 10.4.6, 10.4.6 of Edition 2017); - Add hardware integration and verification specifications (see 10.5.1 of this Edition); - Delete the content of "starting product development at the hardware level" (see Clause 5 and Table A.1 of Edition 2017). The revision of this document adopts ISO 26262-5.2018 "Road vehicles - Functional safety - Part 5.Product development at the hardware level". The technical differences between this document and ISO 26262-5.2018 and their reasons are as follows. - Change the description of T&B vehicles from "trucks, buses, trailers and semi-trailers" to "cargo trucks, buses, special vehicles, trailers" (see 4.6 of this Edition, 4.6 of ISO 26262- 5.2018), to be consistent with the vehicle types specified in GB/T 3730.1-2022 "Terms and definitions of motor vehicles, trailers and combination vehicle -- Part 1.Types". 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., CRRC Times Electric Vehicle Co., Ltd., Huawei Technologies Co., Ltd., Shanghai Hella Electronics Co., Ltd., Nexteer Automotive Systems (Suzhou) Co., Ltd., China FAW Group Co., Ltd., SAIC Motor Volkswagen Automobile Co., Ltd., Pan Asia Automotive Technology Center Co., Ltd., Valeo Automotive Internal Control (Shenzhen) Co., Ltd., Hitachi Anstemo Automotive Electronics (Shanghai) Co., Ltd., Infineon Technologies (China) Co., Ltd., SAIC Maxus Automobile Co., Ltd., Shanghai Jinmai Electronic Technology Co., Ltd., BYD Auto Industry Co., Ltd., Ningde Times New Energy Technology Co., Ltd., United Automotive Electronics Co., Ltd., Zhixing Automotive Technology (Suzhou) Co., Ltd., Shanghai Automotive Group Co., Ltd. Technology Center, Zhuzhou CRRC Times Electric Co., Ltd., Great Wall Motor Co., Ltd., Yutong Bus Co., Ltd., Schaeffler (China) Co., Ltd., Daimler Greater China Investment Co., Ltd., BAIC Motor Co., Ltd., Beijing New Energy Automobile Co., Ltd., Xingkedi Technology (Taizhou) Co., Ltd., Huizhou Yineng Electronics Co., Ltd., Beijing Huate Times Electric Vehicle Technology Co., Ltd., Hefei Juyi Power System Co., Ltd., Honeycomb Energy Technology Co., Ltd., Bosch Auto Parts (Suzhou) Co., Ltd., Beijing Baowo Automobile Co., Ltd., Beijing Baidu Zhixing Technology Co., Ltd., Lego (Shandong) New Energy Technology Co., Ltd., Huating (Hefei) Power Technology Co., Ltd., Aiways Automobile (Shanghai) Co., Ltd., Beijing Jingwei Hengrun Technology Co., Ltd., Vitesco Technology Investment (China) Co., Ltd., Nanjing Xinchi Semiconductor Technology Co., Ltd., Geely Automobile Research Institute (Ningbo) Co., Ltd., Suzhou Inovance United Power System Co., Ltd., Weichai Power Co., Ltd. The main drafters of this document. Li Bo, Li Yong, Wei Fang, Luo Yan, Liu Hang, Fu Yue, Yu Jianye, Shao Haihe, Li Jun, Zhang Lemin, Shang Shiliang, Li Zhenzhen, Yang Hequan, Xu Huizhong, Li Gang, Zhang Xiang, Mao Xiangyang, Zhou Dongdong, Xiong Zaihui, Zhao Tianli, Wang Chao, Zhang Chan, Song Weijin, Li Hongbo, Chen Lei, Liu Qinghe, Li Yurui, Jiang Zhaojuan, Lu Ming, Guo Feifei, Li Dangqing, Qian Qiuhua, Fan Yaoguo, Zhuang Ping, Zhang Ci, Wang Zhipeng, Li Zhewei, Wang Yali, Bao Wei, Luo Huan, Zhang Aiqin, Wang Yu, Wang Bin, Huang Yi, Tong Ziqian, Chen Xiaohu, Chen Jiao, Liu Chang, Sun Bo. Versions of standard substituted by this document are. - GB/T 34590.5-2017 that was issued in 2017 of the first time. - This is the first revision.1 ScopeThis document specifies the requirements for product development at the hardware level for automotive applications, including the following.2 Normative referencesThe 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.3 Terms and definitionsFor the purposes of this document, the terms and definitions defined in GB/T 34590.1-2022 apply.4 RequirementsIf an ASIL is given in parentheses in GB/T 34590, the corresponding sub-clause shall be considered as a recommendation rather than a requirement for this ASIL. This has no link with the parenthesis notation related to ASIL decomposition. For items or elements of motorcycles for which requirements of GB/T 34590.12-2022 are applicable, the requirements of GB/T 34590.12-2022 supersede the corresponding requirements in this document and GB/T 34590.12-2022.5 General topics for the product development at the hardware levelIn contrast to the software development sub-phases, this document contains two clauses describing quantitative evaluations of the overall hardware architecture of the item. Clause 8 describes two metrics to evaluate the effectiveness of the hardware architecture of the item and the implemented safety mechanisms to cope with random hardware failures.6 Specification of hardware safety requirementsThe technical safety requirements are allocated to hardware and software. The requirements that are allocated to both are further partitioned to yield hardware-only safety requirements. The hardware safety requirements are further detailed considering design constraints and the impact of these design constraints on the hardware.7 Hardware designMethods 1a and 1b serve as a check of the complete and correct implementation of the hardware safety requirements in the hardware design. If it is discovered, during hardware design, that the implementation of any hardware safety requirement is not feasible, a request for change shall be issued in accordance with the change management process in GB/T 34590.8-2022, Clause 8.8 Evaluation of the hardware architectural metricsThe random hardware failures addressed by these metrics are limited to some of the item's safety related electrical and electronic hardware parts, namely those that can significantly contribute to the violation or the achievement of the safety goal, and to the single-point, residual, and latent faults of those parts.9 Evaluation of safety goal violations due to random hardware failuresThe requirements for the second method are given in 9.4.3.The "Evaluation of Each Cause of safety goal violation" (EEC) is based on the individual evaluation of each hardware part and its contribution to the violation of the considered safety goal with respect to residual, single-point and plausible dual-point failures. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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