自动换道系统最小安全距离研究

Research on the Minimum Safety Distance of Automatic Lane Change System

针对自动换道系统中最小安全距离模型的构建,分别提出了弯道工况下具有代表意义的最小安全距离模型和基于车辆极限运动关系的最小安全距离模型,建立相应模型进行分析,并以红旗H7轿车仿真模型为基础,对所提出的模型进行了对比,得出基于弯道的最小安全距离模型的潜在事故风险较极限运动关系模型高,但后者换道的次数明显少于前者,自动驾驶车辆行驶效率降低,可能导致用户对自动驾驶功能的体验较差。

To construct the minimum safety distance of automatic lane change system,A minimum safety distance model is proposed typical in curve operation and a minimum safety model based on vehicle extreme motion relationship separately,the two models based on Hongqi H7 limousine simulation model are analyzed and compared,and minimum safety distance model operating in curve has higher accident risk potential than the extreme motion relationship model,but the later has less lane change maneuver and lower efficiency in automatic driving,which results in poor experience of the customer in automatic driving.