基于磁流变减振器的汽车半主动悬架最优控制性能仿真分析  

Optimal Control Simulation Applied to Automobile Semi-active Suspension Based on MR Damper

作　　者：陈燕虹[1] 刘宏伟[2] 田华[1] 

机构地区：[1]吉林大学测试科学实验中心,长春130025 [2]吉林大学汽车动态模拟国家重点实验室,长春130025

出　　处：《拖拉机与农用运输车》2010年第5期37-41,共5页Tractor & Farm Transporter

摘　　要：应用Matlab/Simulink软件,以某型号皮卡车为对象建立1/4车辆悬架模型,以簧上质量垂直方向的加速度均方根值和轮胎动载荷为控制目标,以悬架动行程为约束量,对由磁流变减振器构成的汽车半主动悬架,利用最优控制方法进行了控制性能仿真。各种不同工况的仿真结果表明,最优控制器具有较好的控制效果和适应性,可以提高汽车行驶平顺性和操纵稳定性。The one-quarter-vehicle model of a certain truck is built up in Matlab/Simulink.The paper takes the sprung mass＇s acceleration RMS and the tire＇s dynamic loads as control objects,and the suspension stroke as a restriction.The optimal control is applied to the automobile semi-active suspension based on magneto-rheological damper.The simulation results in different conditions show that the optimal controller is validity and adaptability.The road comfort and handling stability are improved by the use of the optimal controller.

关 键 词：磁流变减振器 最优控制 半主动悬架 仿真 

分 类 号：U463.332[机械工程—车辆工程]