Fuzzy Control of Semi-Active Suspension Based on 7-DOF Tracked Vehicle  

作　　者：张明泽 张永发 

机构地区：[1]School of Science,Beijing Institute of Technology

出　　处：《Journal of Beijing Institute of Technology》2008年第1期5-9,共5页北京理工大学学报（英文版）

基　　金：Sponsored by the Ministerial Level Foundation (405020104)

摘　　要：On the basis of analyzing the system constitution of tracked vehicle semi-active suspension, which consists of electrorheological （ER） damper and shape memory alloy （SMA） spring, a seven degree of freedom （7-DOF） dynamic model is established. The change of the elasticity of SMA spring and the characteristics of the ER shock absorber are studied. In addition, the study about fuzzy control logic is also carried out. Simulation of a C grade road under random excitations and definite disturbances is performed. Simulation result shows the fuzzy control strategy, which is used in the control of semi-active suspension system with ER damper and SMA springs, is effective, stable and reliable.On the basis of analyzing the system constitution of tracked vehicle semi-active suspension, which consists of electrorheological （ER） damper and shape memory alloy （SMA） spring, a seven degree of freedom （7-DOF） dynamic model is established. The change of the elasticity of SMA spring and the characteristics of the ER shock absorber are studied. In addition, the study about fuzzy control logic is also carried out. Simulation of a C grade road under random excitations and definite disturbances is performed. Simulation result shows the fuzzy control strategy, which is used in the control of semi-active suspension system with ER damper and SMA springs, is effective, stable and reliable.

关 键 词：fuzzy control electrorheological （ER） damper shape memory alloy （SMA） spring semi-activesuspension 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]