基于ADAMS和Simulink联合仿真的主动悬架控制

Study on Active Suspension System Based on ADAMS and Simulink

为减少车辆控制系统开发周期和成本,以某皮卡车为研究对象,利用ADAMS/VIEW软件建立了车辆多体动力学模型;基于随机次优控制策略设计了主动悬架控制器,并通过Matlab/Simulink编写了控制算法对其进行联合仿真,通过不断修正控制参数直至得到满意的控制效果。将采用主动悬架系统得到的仿真结果与采用被动悬架系统得到的仿真结果进行了性能对比,结果表明主动悬架系统有效地改善了车辆的行驶性能。

The design process of controller for active suspension employed by a pickup vehicle based on the co-simulation was presented. First, a detailed multi-body dynamic model of the vehicle was established by using ADAMS/VIEW software package; second, a stochastic controller was designed for active suspension system and worked out by means of Matlab/Simulink, the proposed control algorithm was integrated with the multi-body dynamic vehicle model and the cosimulations could be performed repeatedly until a satisfactory controller was achieved, the system was compared with a conventional passive one. Simulation results showed that the proposed active suspension considerably improved both the ride and handling performance of the vehicle.