1 Scope
This document defines the terms and definitions, as well as the abbreviations, for the application of GB/T 34590.
This document applies to safety-related systems containing one or more electrical/electronic systems installed on mass-produced road vehicles other than mopeds.
This document does not apply to specific electrical/electronic systems on special purpose vehicles, for example, vehicle systems designed for drivers with disabilities. Note: Other special safety standards can be used as a supplement to this document, and vice versa.
Systems and their components that have completed production release or are under development prior to the date of this document do not apply to this document. When changes are made to the system and its components that were released in production prior to the release of this document, the document is based on these changes to the security lifecycle activities for tailoring. When a system not developed in accordance with this document is integrated with a system developed in accordance with this document, the safety lifecycle is trimmed in accordance with this document.
This document addresses the possible hazards caused by the abnormal appearance of the function of safety-related electrical/electronic systems, including the possible hazards caused by the interaction of these systems. This document does not address hazards related to electric shock, fire, smoke, heat, radiation, toxicity, flammability, reactivity, corrosion, energy release, and similar hazards, unless the hazard is caused directly by the abnormal functional appearance of safety-related electrical/electronic systems.
This document proposes a framework for the development of safety-related electrical/electronic systems near-line functional safety, which is designed to integrate functional safety activities into an enterprise-specific development framework. This document specifies the technical development requirements for achieving functional safety of products, and also specifies the development process requirements for organizations with corresponding functional safety capabilities.
2 Normative References
The following documents constitute the essential provisions of this document through the normative references in the text. Among them, note the date of the reference document, only the date corresponding to the version applicable to this document; do not note the date of the reference document, its latest version (including all the change orders) applicable to this document.
GB/T 34590.3-2022 Functional safety of road vehicles part 3: concept phase (ISO 26262-3:2018,MOD)
Note:GB/T 34590.3-2022 is cited with no technical differences from what ISO 26262-3.2018 is cited.
GB/T 34590.4-2022 Functional safety of road vehicles Part 4:Product development:System level (ISO 26262-4:2018, MOD)
Note:There is no technical difference between what is cited in GB/T 34590.4-2022 and what is cited in ISO 26262-4:2018.
GB/T 34590.5-2022 Functional safety of road vehicles Part 5: Product development: Hardware level (ISO 26262-5:2018,MOD)
Note:There are no technical differences between what is cited in GB/T 34590.5-2022 and what is cited in ISO 26262-5;2018.
GB/T 34590.6-2022 Functional safety of road vehicles Part 6: Product development: software level (ISO 26262-6;2018).
3 Terminology and definitions
The following terms and definitions are applicable to this document.
3.1
architecturearchitecturc
A characterization of the structure of a relevant item (3.84) or element (3.41), used to identify the architecture module and its boundaries and interfaces, and including the assignment of requirements to the architecture module.
3.2
ASIL level capability ASIL capability
The relevant item (3.84) or element (3.41) satisfies the assumed, assigned security (3.132) requirements of a given ASIL (3.6) level capability. Note, as part of the hardware safety requirements, if required, also includes the achievement of the corresponding random hardware failure metric target value assigned to element (3.41) (see
chapters 8 and 9 of GB/T 34590.5-2022).
3.3
ASIL level decomposition-ASIL decomposition
To help achieve the same safety objective (3,139), the redundant safety (3.132) requirements are assigned to the element with sufficient independence (3.78) (3.41) to reduce the ASIL (3.6) level of the redundant safety (3.132) requirements assigned to the relevant element (3.41).
Note 1: ASII, level decomposition is the design process of ASIL (3.6) level clipping method is still secret MLGB/T 34590.9-2022 defined as the decomposition of requirements on ASIL (3.6) level clipping.
Note 2: According to GB/T 34590.9-2022, ASIL. level decomposition does not live claw random hardware failure requirements.
Note 3: Redundant safety (3.132) requires the ASIL (3.6) level reduction to stop back in some exceptions, such as, approved measures (3.23) to maintain the same level as the safety target (3.139).
3.4
Evaluation of assessment
The relevant items (3.84) or elements (3.41) of the characteristics of whether to achieve the objectives of GB/T 34590 check.
3.5
Auditaudit
For the process objectives of the implemented process checks.
3.6
Automotive safety integrity levelautomotive safety integrity level;ASIL
One of the four levels used to define the relevant items (3.84) or elements (3.41) need to meet the requirements of GB/T 34590 and safety measures (3.141) to avoid unreasonable risk (3.176), where D represents the highest level of stringency and A represents the lowest level of stringency.
Note: OM (3.117) is not an ASII, level.
3.7
Availability
In the defined life cycle, the ability of the product to provide the specified function under the given conditions as required.
4 Abbreviations
The following abbreviations apply to this document.
Bibliography
