在预瞄跟随理论基础上设计的驾驶员方向控制模型常用于弯道、移线、蛇行试验中横向轨迹的控制,文中研究了它对汽车侧风稳定性的控制效果.根据预瞄跟随理论及PID控制技术,采用MATLAB/Simulink建立了驾驶员方向控制模型;根据某轿车实测数据,采用多体动力学软件AD-AMS建立了车辆-侧向风-道路耦合模型;通过定义输入变量(转向盘转角)和输出变量(侧向位移),实现了基于ADAMS与MATLAB/Simulink的汽车侧风稳定性联合仿真.试验结果显示驾驶员模型能够有效控制由侧向风引起的大幅度侧向偏移,系统具有较强的跟随性和鲁棒性.
The driver directional control model designed on preview follower theory is used to lateral course control in steering test,lane-change track test and pylon course slalom test,its control ability for vehicle cross-wind stability is tested in this article.According to preview follower theory and PID control technic,the driver directional control model was established in MATLAB/Simulink while the coupled model consisted of vehicle model,road model,cross-wind model was constructed in ADAMS from the real vehicle datum;within ADAMS and MATLAB,the variables both inputs(steering wheel angle) and outputs(lateral displacement) were defined for co-simulation of automobile cross-wind stability.The results showed that the dirver model could effectively minished lateral offset,the above-average tracing ability and robustness of system were proved.