汽车自动紧急制动系统控制策略的预期功能安全设计

作者：Duan Shunchang; Bai Xianxu^*; Shi Qin; Li Weihan; He Guannan

来源：Qiche Gongcheng/automotive Engineering, 2022, 44(9): 1305-1317+1338.

DOI：10.19562/j.chinasae.qcgc.2022.09.002

• AEB
• control strategy
• risk assessment
• SOTIF

The safety risks the autonomous vehicles face not only come from the deficiencies of functional safety and information safety, but also stem from the insufficiencies of the safety of the intended functionality(SOTIF). As an important part of autonomous driving system, the automatic emergency braking(AEB)system has SOTIF insufficiencies in control strategies. In this paper, the system theoretical process analysis method is adopted to analyze the safety of AEB system, find out the trigger events that may cause harm and put forward the corresponding safety objectives. Aiming at the safety objectives, a control strategy for AEB system based on detailed scenes are proposed. The control strategy proposed for AEB system is then verified in CarSim-MATLAB/Simulink environment. The results show that after functional corrections in both the event acceptance criterion and total risk acceptance criterion, the risk level of the system becomes much lower and the safety level of the system is apparently enhanced. ? 2022 SAE-China.

• 单位
  合肥工业大学