Intelligent Vehicle Autonomous Emergency Braking System Considering Safety of the Intended Functionality

被引：0
|
作者：
Tan D. [1 ,5 ]
Hu G. [1 ,5 ]
Zhu B. [1 ,5 ]
Jin L. [2 ]
Zhang J. [3 ]
机构：
[1] Institute of Automotive Engineering Technology, Hefei University of Technology, Hefei
[2] Anhui Sanlian Applied Traffic Technology Co., Ltd., Hefei
[3] Ministry of Public Security, Key Laboratory of Ministry of Public Security for Road Traffic Safety, Wuxi
[4] Institute of Intelligent Manufacturing, Hefei University of Technology, Hefei
来源：
Qiche Gongcheng/Automotive Engineering | 2022年 / 44卷 / 06期
关键词：
AEB; Disturbance observer; Optimal safe speed; Perceptual blind scenes; Sliding mode control; SOTIF; STPA;
D O I：
10.19562/j.chinasae.qcgc.2022.06.001
中图分类号：
学科分类号：
摘要：
The proposed safety of the intened functionality (SOTIF) has challenged the safety of traditional automatic emergency braking (AEB) system. To deal with it, this paper uses systems-theoretic process analysis (STPA) to obtain the SOTIF requirements of the AEB. On the basis of the traditional AEB, a safety speed planning strategy for the perceptual blind scenes is added. Then, based on the kinematics model of the encounter between the vehicle and the pedestrian in the perceptual blind scenes, the formula of blind scenes safe speed is constructed. Then a speed sliding mode controller with a nonlinear disturbance observer is designed to track and control the speed. Finally, the simulation test is carried out on the joint platform of CarSim and Simulink to compare the safety of the proposed system with the automatic emergency braking system without the intended functional safety requirements, which is further verified via the hardware-in-the-loop experiment. The results show that the AEB considering the SOTIF can effectively reduce the risk of pedestrian collision and ensure the efficiency of vehicles passing through blind spots safely. © 2022, Society of Automotive Engineers of China. All right reserved.
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页码：799 / 807and830
相关论文
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