基于磁流变减振器的汽车前悬架半主动控制研究  

Semi-active Control for Automotive Front Suspension Based on Magneto-rheological Damper

作　　者：余淼[1] 李锐[2] 廖昌荣[1] 陈伟民[1] 

机构地区：[1]重庆大学光电技术及系统教育部重点实验室,重庆400044 [2]重庆邮电学院,重庆400065

出　　处：《中国机械工程》2005年第6期545-549,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助重点项目(50135030);国家自然科学基金(60404014);重庆市院士基金(027754)联合资助项目

摘　　要：在磁流变减振器外特性分析基础上,设计了1/4车辆的自适应模糊控制器,提出了把1/4车辆模型的半主动控制算法应用于汽车左右前悬架独立控制的策略,并在Matlab平台上进行了仿真。选用国产某型号微型车作为试验车辆,将其被动的左右前悬架改装成磁流变半主动悬架,在多种条件下进行了实车道路试验。试验结果与仿真吻合,表明对左右前悬架进行独立半主动控制是可行的,明显提高了汽车行驶的平顺性。MR fluid damper's semi-active characteristics were analyzed, a control strategy was studied in which a quarter-vehicle control was used independently to two front MR suspensions of the vehicle. A quarter-vehicle self-adapted logic controller was adopted. The completed system was simulated via SIMU-LINK Toolbox of MATLAB 6.1. One automobile, which was equipped with MR semi-active suspensions instead of front passive ones, was tested in road. Test results tally with simulation ones. It indicates that using semi-active control independently in left and right suspension is feasible. Both MR suspension systems with semi-active logic controller can effectively improve ride comfort of automobile.

关 键 词：汽车 磁流变减振器 半主动控制 自适应模糊控制 道路测试 

分 类 号：U463.33[机械工程—车辆工程]