汽车工程学报2024，Vol.14Issue(6)：921-933,13.DOI:10.3969/j.issn.2095‒1469.2024.06.01
智能汽车系统功能安全保障机制的现状与展望
Current Status and Future Outlook of System Functional Safety Mechanisms in Intelligent Vehicles
摘要
Abstract
With the rapid development of advanced intelligent connected vehicles,their safety has become a widespread concern.Currently,the mechanisms to ensure functional safety are a major research focus both domestically and internationally.Countries are gradually establishing standards for vehicle safety performance,and the International Organization for Standardization(ISO)continues to refine the Functional Safety(ISO 26262)and Safety of the Intended Functionality(ISO 21448)standards.On this basis,the safety objectives of most automotive products,especially intelligent chassis systems related to autonomous driving,such as brake-by-wire and steer-by-wire actuators,are classified under Automotive Safety Integrity Level D(ASIL D).This paper summarizes industry research on redundancy mechanisms in system safety architecture,analyzes and organizes fail-operational safety architecture across different levels of autonomous driving,and examines functional safety degradation strategies.Finally it discusses the potential for integrating ISO 21448 into the ISO 26262 standard to effectively prevent accidents due to errors in the vehicle's Electronic/Electrical(E/E)systems and insufficient actuator performance,thereby providing stronger assurance for safe vehicle operation.关键词
智能汽车/功能安全/冗余机制/域控制器Key words
intelligent vehicles/functional safety/redundancy/domain control unit分类
交通工程引用本文复制引用
罗通强,刘坚坚,赵炳根,邱旭波,李仰光,吕晨..智能汽车系统功能安全保障机制的现状与展望[J].汽车工程学报,2024,14(6):921-933,13.基金项目
国家重点研发计划项目(2023YFB2504500) （2023YFB2504500）
