Multi-mode collision avoidance closed-loop control system

被引:0
|
作者
Ji, Xuewu [1 ]
Fei, Cong [1 ]
Xu, Tao [1 ]
He, Xiangkun [1 ]
机构
[1] Tsinghua Univ, State Key Lab Automobile Safety & Energy, Beijing 100084, Peoples R China
关键词
autonomous vehicles; CAS; collision avoidance system; trajectory prediction; LSTM; long short-term memory; network collision detection; Monte-Carlo methods; risk assessment; TTC; time-to-collision; multi-mode control strategy; motion planning; TRAJECTORY PREDICTION; VEHICLE;
D O I
10.1504/IJVD.2020.115062
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Autonomous vehicles are a research area of active interest. Collision avoidance system (CAS) is one of the central concerns to provide security protection for autonomous vehicles. This paper proposes a multi-mode collision avoidance system (mCAS), which combines a trajectory prediction module, a risk assessment module and a motion planning module into the closed-loop system. At each step, the trajectory prediction module predicts the trajectories of the vehicle and surrounding vehicles. The risk assessment model calculates the collision probability and chooses reasonable control mode. Then the motion planning module designs the desired deceleration profile based on it. The car takes the first step of the planned deceleration and repeats this cycle, achieving closed-loop control. The mCAS is tested in a closed-loop simulation setup and the results show that the proposed mCAS is of good effectiveness and feasibility, which can significantly reduce collision probability as well as false alarms.
引用
收藏
页码:240 / 257
页数:18
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