磁流变减振器半主动悬架的Fuzzy-PID开关切换控制  

Fuzzy-PID Switch Control on Semi-active Suspensions with MR Damper

作　　者：刘韶庆[1] 姚斌[1] 袁善发[1] 刘咏萱[1] 周孔亢[1] 

机构地区：[1]江苏大学汽车与交通工程学院

出　　处：《农业机械学报》2006年第12期4-7,12,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：浙江省教育厅资助项目(项目编号:20061616);江苏大学博士创新基金资助项目(项目编号:b2005014)

摘　　要：提出了一种Fuzzy-PID混合控制的控制策略——Fuzzy-PID开关切换控制,用于车辆半主动悬架的控制。通过与Fuzzy控制策略比较,得出其控制的基于磁流变减振器的半主动悬架系统在减小簧载质量加速度和悬架动挠度方面具有更好的效果,具有鲁棒性强、超调量小、抗干扰等特点。With high degree of accuracy, rapid response and good robust, the PID control theory was applied in control system that provided with linear, mathematic model, the strongpoint of fuzzy control is that it doesn＇t need the precise mathematic model of the controlled object, but the stability of fuzzy theory needs further studying. Vehicle suspension system is a representative time lag, nonlinear system, and the modeling is difficult and uncertain. Integrated the two controlling strategy hereinbefore, a new-style Fuzzy-PID mixed controlling strategy Fuzzy- PID switch control has been put forward and was used in semi-active suspensions. Compared with fuzzy controlling, the Fuzzy-PiD switch control has better effect in decreasing sprung mass acceleration and suspension dynamic flexibility, and has good robust performance, little overshoot quantity and anti-jamming performance.

关 键 词：半主动悬架 模糊控制 PID控制 

分 类 号：U463.33[机械工程—车辆工程]