汽车智能巡航纵向控制方法与仿真研究

Research on Vehicle Intelligent Cruise Longitudinal Control Method and Simulation

汽车智能巡航系统是根据本车与前方目标车辆或障碍物之间的相对距离来自动控制本车辆驱动或制动,以达到保证车间合适安全距离的一种汽车主动安全技术。通过PanoSim与MATLAB/Simulink联合仿真来验证汽车智能巡航纵向控制方法的有效性和适用性。车载雷达系统对前方所有目标物体进行识别并筛选出有效目标车辆,汽车巡航控制器利用主车与目标车的相对速度与距离对主车辆的驱动工作模式和制动工作模式进行控制,从而实现了车辆的纵向运动。仿真结果表明该控制方法具有较好的纵向控制效果。

Automotive intelligent cruise system is a kind of active safety technology which automatically controls the vehicle＇s driving or braking according to the relative distance between the vehicle and the target vehicle or obstacle in front of the vehicle to ensure the appropriate safe distance of the workshop. This paper verifies the effectiveness and applicability of the intelligent cruise longitudinal control method through the joint simulation of PanoSim and MATLAB/Simulink. The on-board radar system recognizes all the forward target objects and selects the effective target vehicles. The vehicle cruise controller controls the driving operation mode and braking operation mode of the main vehicle by using the relative speed and distance between the main vehicle and the target vehicle, thus realizing the longitudinal motion of the vehicle. The simulation results show that the control method is effective in longitudinal control.