车道保持系统研究

Research on lane keeping Assistance system

为了减少由于驾驶人分心或疲劳造成的车道偏离事故,提出一种车道保持控制系统。根据道路线性将道路分为直线路段和曲线路段,利用跨道时间来判断车辆将偏离车道;驾驶员的操作状态根据转向灯信号及转矩信号来进行判断。综合车道偏离信息与驾驶员操作信息来判断车道保持系统是否工作;车道保持系统的控制策略采用单点预瞄最优曲率驾驶员模型。仿真结果表明,模型能够实现车道保持功能。

In order to reduce lane departure accidents caused by driver distraction or fatigue,we study Lane Keeping Assistance System. This article divides the road into straight sections and curved sections according to road linearity, and uses cross-lane time to judge whether the vehicle is in danger of deviating from the lane. The driver’s operation state is judged based on the signal signal and the torque signal, and the information of the lane departure is combined with the driver’s operation information to judge whether the lane keeping system is working. The control strategy of lane holding system adopts the optimal curvature driver model with single point preview. Simulation results show that the model can realize lane keeping function.