Vibration Characteristic Analysis of Vehicle Air Suspension Based on Fuzzy Control
The air suspension has the char acteristics of nonlinear variable spring rate.To improve vehicle handling stability and ride comfort,the characteristic curve can be designed to comply with the vehicle vibration.In this pa per,air suspension and whole vehi cle were selected as research object; vehicles mathematical model was established based on vehicle dyna mic theory,the state space expression and suspension system frequency response function of mathematical model were derived.Fuzzy control was adopted as air suspension control strate gy; vehicles ride comfort was analyzed and simulated using MATLAB/Simulink.The body vertical acceleration,the body pitch angular acceleration and the suspension deflections are obtained.Simulation results show that the mathematical model is reasonable.The fuzzy controller has a good performance to meet the actual demand.Vehicles ride comfort is improved.
air suspension ride comfort fuzzy control MATLAB/Simulink
CHEN Ke ZHANG Ming TONG Xuefeng
School of Automotive and Traffic,Shenyang Ligong University,Shenyang 110159,China
国际会议
沈阳
英文
2196-2199
2012-09-26（万方平台首次上网日期，不代表论文的发表时间）