附加气室容积可调空气悬架模糊控制研究  

Study on Fuzzy Control Applied in Adjustable Volume Air Suspension with Additional Air Chambers

作　　者：江洪[1] 钱宽 孔亮[1] 周扬扬[1] 

机构地区：[1]江苏大学机械工程学院,镇江212013

出　　处：《重庆理工大学学报（自然科学）》2015年第10期12-18,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金青年基金资助项目(51305111);江苏省六大人才高峰资助项目(2012-ZBZZ-030)

摘　　要：以配备4个附加气室容积可调空气弹簧的整车悬架为研究对象,首先建立附加气室容积可调的空气弹簧模型,并以弹簧力形式引入整车模型,然后在整车模型仿真的基础上对前后悬架的附加气室容积值进行匹配。整车采用4个二维模糊控制器对前左、前右、后左、后右悬架的附加气室容积分别进行控制。仿真结果表明：采用模糊控制的半主动悬架相比于被动悬架控制效果显著,座椅的垂向加速度均方根值改善约5%~13%、前悬架动行程峰值改善约7%~29%、后悬架动行程峰值改善约17%~23%,车辆在多工况下的行驶平顺性得到有效提高。Study on adjustable volume air springs equipped with four additional air chambers of a whole vehicle suspension,a model of adjustable volume air springs with additional air chambers was established,and the model was substituted into a whole vehicle model in the form of the spring force.Then,on the basis of the whole vehicle model,the additional air chamber volume value of front and rear suspensions was matched. By using four two-dimensional fuzzy controllers,the additional air chamber volume value of front left,front right,rear left and rear right suspensions were controlled.Simulation results show that comparing to the passive suspension,the control effeteness of the semi active suspension with a fuzzy controller is remarkable. The root mean square of vertical acceleration of chairs is improved about 5% ~ 13%,and the stroke peak of front suspension is improved about 7% ~29% as well as the stroke peak of rear suspension is improved about 17% ~ 23%. Hence the riding comfort under multiple driving conditions is enhanced effectively.

关 键 词：容积可调附加气室 模糊控制 平顺性 整车空气悬架 

分 类 号：U463.33[机械工程—车辆工程]