基于模糊鲁棒控制的车辆半主动悬架性能分析  

Performance Analysis of Vehicle Semi-active Suspension Based on Fuzzy and Robust Control Method

作　　者：张孝祖[1] 武鹏[1] 黄少华[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5期1-4,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：江苏省自然科学基金资助项目(项目编号:BK2001199)

摘　　要：半主动悬架控制系统是双线性系统,直接求解H∞控制器有困难,提出将鲁棒控制与模糊控制相结合的控制方法,用阻尼力代替阻尼作为H∞控制器的输出,简化了H∞控制器的求解,并对带H∞控制器半主动悬架的幅频特性与被动悬架的幅频特性进行了比较分析。对H∞控制器输出的力,通过模糊控制器来确定并选择可调阻尼减振器的阻尼,实现了半主动悬架的阻尼有级可调。通过计算机仿真,验证了模糊鲁棒控制算法的有效性。The semi-active suspension system was bilinear, to solve the H∞ controller directly was difficult. In this paper, the combined robust and fuzzy control system was proposed. Using force instead of damper as the output of H∞ controller the calculation of H∞ controller was simplified and the magnitude-frequency characteristics of the semi-active suspension with H∞ controller were compared with that of the passive suspension, By means of fuzzy controller, the output force of the H∞ controller was used to determine and select the damper of the adjustable absorber. Therefore, the damper of the semi-active suspension can be adiusted stepwise. The efficiency of the robust fuzzy control algorithm was validated by computer simulation which showed that the general performances of the semi-active suspension were significantly improved compared with the passive suspension.

关 键 词：车辆 半主动悬架 鲁棒控制 模糊控制 

分 类 号：U463.33[机械工程—车辆工程]