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以某车辆二自由度磁流变半主动悬架振动模型为基础,设计了磁流变半主动悬架模糊控制器。利用Matlab/Simulink对被动悬架和半主动磁流变悬架分别进行了随机路面和阶跃输入下的动力学仿真分析。仿真结果表明:采用模糊控制的磁流变半主动悬架对由路面不平引起的车辆振动控制效果要明显优于被动悬架,磁流变半主动悬架可有效改善汽车行驶的平顺性和舒适性。
Based on the vibration model of a two-DOF magnetorheological semi-active suspension, a fuzzy control system of semi-active magnetorheological suspension was designed. The dynamic simulation analysis of passive suspension and semi-active magnetorheological suspension with random road surface and step input is carried out by using Matlab / Simulink. The simulation results show that the fuzzy control of MRF semi-active suspension on the vehicle caused by uneven road surface vibration control effect is significantly better than the passive suspension, MRF semi-active suspension can effectively improve the ride comfort and comfort Sex.