阻尼模糊控制在车辆半主动悬架中的应用  

Application of Fuzzy Control on Damping Coefficient in Vehicle Semi-active Suspension

作　　者：张孝祖[1] 乐巍[1] 陈龙[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》2004年第2期5-8,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：江苏省自然基金资助项目 (项目编号 :BK2 0 0 1199)

摘　　要：建立了 4自由度 1/ 2车辆半主动悬架模型及其状态方程。提出了一种半主动悬架阻尼模糊控制方法 ,它采用两个并行的模糊控制器 ,分别输入前、后轴 3个输入量 ,即车身加速度、车身与车轴间的加速度差及速度差 ,输出前、后轴的可调阻尼控制悬架。设计了模糊控制规则 ,通过计算机仿真验证了这种控制算法的有效性 ,并证明半主动悬架与被动悬架相比能显著改善悬架综合性能。A half vehicle semi-active suspension model with 4-DOF (degree of freedom) and its state equation were built. A new method for fuzzy control on damping coefficient to semi-active suspension was proposed. The control system consists of two parallel fuzzy controllers, and three input variables (i.e., the body acceleration, the difference of acceleration between body and axle and the different of velocity between body and axle) are respectively input to the front-rear axle, the output adjustable damping of front-rear axle control suspension. We designed fuzzy control rules according to the damping control, and the efficiency of the control algorithm was validated by computer simulation that showed the general performances of the semi-active suspension were significantly improved compared with the passive suspension.

关 键 词：阻尼模糊控制 车辆 半主动悬架 模糊控制器 计算机仿真 

分 类 号：U463.33[机械工程—车辆工程]