基于模糊控制磁流变车辆半主动悬架的时滞研究  

Study on time lag of magnetorheological vehicle semi-active suspensions based on fuzzy control

作　　者：单红艳[1] 石锦芸[1] 

机构地区：[1]杭州职业技术学院友嘉机电学院,杭州310018

出　　处：《机械设计与制造》2008年第8期59-61,共3页Machinery Design & Manufacture

基　　金：杭州职业技术学院院级课题B专项(2008-2-003)

摘　　要：时滞导致磁流变减振器可控阻尼力的不同步实施,因而降低了车辆半主动悬架的性能与稳定性。基于半主动悬架临界时滞理论的分析,建立了含有时滞的磁流变半主动悬架的数学模型与含有时滞的悬架传递函数,为其控制系统的时滞研究提供了理论依据;并在模糊控制策略的基础上,对控制系统进行时滞补偿。研究表明进行时滞补偿的系统改善了悬架性能。Time-delay causes tmsynchronized function of control damping force which degrades the performance and stability of magnetorheological semi-active suspensions. Based on analyzing arbitrary time delay of semi-active suspension, the mathematical model and the transfer function of magnetorheological semi-active suspension with delay were established so as to offer theoretical proof to the time-delay of control system. Moreover the control system with compensated time-delay is studied based on fuzzy control. The study shows the time-delay compensation control system has improved the performance of suspensions.

关 键 词：时滞 磁流变 模糊控制 半主动悬架 

分 类 号：TH12[机械工程—机械设计及理论] TP273.4[自动化与计算机技术—检测技术与自动化装置]