基于MATLAB的汽车驾驶员模型探究

Research on Automobile Driver Model Based on MATLAB

以预瞄最优曲率驾驶员模型作为研究对象,建立人—车闭环控制系统,根据道路信息和汽车运动状态,驾驶员输出最佳的方向盘转角,维持汽车预期的行车轨迹。构建MATLAB/Simulink仿真模型,引入侧风干扰,对所建立的驾驶员模型控制汽车操作稳定性进行仿真试验。仿真结果表明:相比于开环控制,基于预瞄最优曲率驾驶员模型的闭环控制系统,能很好地维持汽车行车轨迹跟随能力,从而提高汽车的操作稳定性。

Taking the preview optimal curvature driver model as the research object,a human-vehicle closed-loop control system is established.According to the road information and the car motion state,the driver outputs the best steering wheel angle to maintain the car's expected driving trajectory.The article builds a MATLAB/Simulink simulation model,introduces crosswind interference,and conducts a simulation test on the established driver model to control the stability of the car's operation.The simulation results show that compared with the open-loop control,the closed-loop control system based on the preview optimal curvature driver model can well maintain the vehicle's trajectory following ability,thereby improving the stability of the vehicle's operation.