Study On Force Tracking Control Of Electro-hydraulic Active Suspension
In order to improve the vehicle ride comfort,the vehicle EHA(electro-hydrostatic actuator,EHA)active suspension structure has been proposed.The mathematical model of the 2 DOF active suspension and the mathematical model of the EHA active suspension system are established.The influence of the actuator(brushless DC motor)on the main force of the system is analyzed.A force tracking control strategy is designed,which includes the system outer ring LQG controller and the system inner loop motor speed & current controller.According to the influence of the brushless DC motor on the active suspension system,the simulation analysis of the suspension system under the control of the force tracking and the LQG control without considering the influence of the motor on the system is carried out.The results show that the force tracking control strategy can effectively track the active force of the system and improve the dynamic characteristics of the EHA active suspension.
electro-hydraulic active suspension force tracking control
Farong Kou Zhe Wang Jiafeng Du Dong Li Erjun Fan
College of Mechanical Engineering,Xian University of Science and Technology Xian China
国际会议
重庆
英文
1078-1082
2017-10-03（万方平台首次上网日期，不代表论文的发表时间）