汽车主动悬架控制策略对比研究  

Research on the different control strategies of automobile active suspension

作　　者：陈学文[1] 张衍成[1] 杨威勇[1] 邵鹏生 

机构地区：[1]辽宁工业大学汽车与交通工程学院,锦州121001

出　　处：《现代制造工程》2014年第8期41-44,73,共5页Modern Manufacturing Engineering

基　　金：辽宁省教育厅优秀人才项目(LJQ2012058)

摘　　要：为提高汽车主动悬架减振性能,建立了简化的1/4车体二自由度主动悬架模型,分别结合PID控制、模糊控制和自适应模糊PID控制方式设计了1/4车二自由度主动悬架控制器。以C级路面白噪声随机信号为激励,利用MATLAB/Simulink软件对车辆主动悬架的三种控制方式进行了仿真,选取车身垂直振动速度及加速度、悬架动挠度和轮胎动载荷等指标进行控制效果评价。结果表明:基于自适应模糊PID控制的主动悬架较其他控制方式能明显改善汽车行驶平顺性,可有效抑制汽车主动悬架的振动。In order to improve the vehicle ride comfort ,establish a quarter of vehicle active suspension simplified model and de-sign an active suspension controller which is based on three control strategies under PID control ,fuzzy logic control and adaptive fuzzy-PID control .Using the white noise stochastic road surface of C-grade as the input signal ,the controller based on three con-trol strategies is validated by using MATLAB/Simulink.The simulation results show that the adaptive fuzzy-PID control method can improve vehicle ride comfort and is better than the other controllers in the body vertical vibration acceleration ,suspension dy-namic deflection and tire dynamic load .

关 键 词：主动悬架 PID控制 模糊控制 自适应模糊PID控制 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]