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Current Status and Future Outlook of System Functional Safety Mechanisms in Intelligent Vehicles
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Tongqiang LUO, Jianjian LIU, Binggen ZHAO, Xubo QIU, Yangguang LI, Chen LYU
Chinese Journal of Automotive Engineering | 2024, 14(6) : 921 - 933
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Chinese Journal of Automotive Engineering | 2024, 14(6): 921-933
• Review and Prospect •
Current Status and Future Outlook of System Functional Safety Mechanisms in Intelligent Vehicles
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Tongqiang LUO, Jianjian LIU, Binggen ZHAO, Xubo QIU, Yangguang LI, Chen LYU
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  • BYD Auto Industry Company Limited Shenzhen 518118 China
doi: 10.3969/j.issn.2095–1469.2024.06.01
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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 brakebywire and steerbywire 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 failoperational 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.

intelligent vehicles  /  functional safety  /  redundancy  /  domain control unit
Tongqiang LUO, Jianjian LIU, Binggen ZHAO, Xubo QIU, Yangguang LI, Chen LYU. Current Status and Future Outlook of System Functional Safety Mechanisms in Intelligent Vehicles[J]. Chinese Journal of Automotive Engineering, 2024 , 14 (6) : 921 -933 . DOI: 10.3969/j.issn.2095–1469.2024.06.01
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doi: 10.3969/j.issn.2095–1469.2024.06.01
  • Receive Date：2024-10-14
  • Online Date：2025-07-20
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  • Received：2024-10-14
  • Revised：2024-10-28
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    BYD Auto Industry Company Limited Shenzhen 518118 China
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