基于车车协同的汽车换道避撞控制策略研究

在汽车先进驾驶辅助系统研究中,针对典型的换道场景展开分析,采用V2V/V2X的思想,从车辆运动学角度出发,综合考虑相对速度、相对距离、冲突时间等影响因素,提出在传统自适应巡航控制系统中添加换道调速避撞控制策略。使用Prescan软件搭建典型的换道虚拟交通场景,在车辆上设置无线通信装置,通过MATLAB/Simulink软件添加控制模块进行联合仿真,验证汽车辅助驾驶换道避撞控制。仿真实验表明,提出的换道避撞控制策略,可有效避免车辆在换道过程中发生碰撞。

Research on Vehicle Lane Change Collision Avoidance Control Strategy Based on Vehicle Collaboration

In the research of advanced driving assistance system of automobiles,for the analysis of typical lane change scenarios,based on the V2 V/V2 Xidea,starting from the perspective of vehicle kinematics,with the comprehensive consideration of the relative speed,the relative longitudinal distance,the evaluation index TTC(time to collision)and other influential factors,a lane changing speed regulation collision avoidance control strategy added in the traditional adaptive cruise control system was proposed.A virtual lane changing scenario was developed by the united simulation of MATLAB/Simulink and Prescan to verify the control strategy.The experimental results show that the proposed lane changing collision avoidance control strategy can avoid collisions in the lane changing process effectively.