基于Carsim和Simulink的超车换道仿真分析

发布时间：2019-02-22 13:07

【摘要】：超车是换道的主要动机,分析超车过程中驾驶员的操作特性以及车辆运动状态,能够为驾驶员模型的精确控制提供参考。在分析各种可能换道的基础上,构建动态超车换道可行域。以7次多项式规划换道边界轨迹,依据期望跟车距离确定可行域的上边界,根据安全碰撞条件确定可行域的下边界;并依据两车的运动关系确定超车换道条件。预设超车换道轨迹,在Simulink中构建驾驶员模型;并将Carsim中车辆模型导入,进行了超车换道模型仿真分析。对超车过程中车辆参数进行对比分析。结果表明:超车过程中驾驶员一般会提高车速,但加速强度不大;且低速时换道的随意性大,但与设定轨迹偏离程度较小。
[Abstract]:Overtaking is the main motivation for changing lanes. The analysis of driver's operating characteristics and vehicle motion state during overtaking can provide a reference for the accurate control of driver's model. Based on the analysis of various possible lane changes, a dynamic overtaking lane changing feasible region is constructed. The upper boundary of feasible region is determined according to the expected distance of vehicle, the lower boundary of feasible region is determined according to the condition of safety collision, and the condition of overtaking is determined according to the kinematic relation of two vehicles. The driver model is constructed in Simulink, and the vehicle model in Carsim is imported into the system, and the simulation analysis of overtaking model is carried out. The vehicle parameters during overtaking are compared and analyzed. The results show that the driver will generally increase the speed of overtaking, but the acceleration intensity is small, and the change of track at low speed is random, but the deviation from the set track is small.
【作者单位】：重庆交通大学交通运输学院;西安科技大学管理学院;
【基金】：重庆市科委基础与前沿研究计划项目(cstc2013jcyjA30015) 重庆市教委项目(KJ130425) 陕西省教育厅专项研究计划项目(2013JK0219)资助
【分类号】：U491.255

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