基于Simulink的换道防碰撞预警建模与仿真分析

Lane Change Collision Prevention Warning Modeling and Simulation of Analysis Based on Simulink

结合正弦函数换道轨迹模型估计换道压线时间,识别换道意图。根据危险安全时间阈值建立换道安全预警距离模型和换道预警规则,并在Simulink中建模,对换道预警规则进行仿真分析。与其他换道安全距离模型进行对比,结果表明:设计模型的换道安全预警距离较小,在保证换道安全的基础上有利于提高换道效率。因此,参照换道危险状况建立的预警规则有实际意义和应用价值。

The cross line time is estimated by the sine function lane model which is in order to identify the intention of lane changing. The safe distance model and lane changing warning rules are established according to the threshold of conflict time,a simulation of lane changing warning rules is made through the model in Simulink. The results show that in terms of real-time and accuracy,the system can meet the requirements of the lane changing warning situation. Therefore,according to a lane change dangerous situation,and the established early warning rule has practical significance and application value.