Master–Slave Control for Active Suspension Systems With Hydraulic Actuator Dynamics

IEEE Access

Xiaoyu Su¹ 

[1] School of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai, China;

关键词: Hydraulic active suspension system;    input nonlinearity;    master-slave controller;   

DOI  :  10.1109/ACCESS.2017.2672598

来源: DOAJ

【 摘 要 】

In order to solve the input nonlinearity of the hydraulic active suspension system, a master- slave control law is proposed through a nonlinear separation strategy. A Robust H_∞ control is used as the master controller and an adaptive backstepping control scheme is designed as the slave controller. The robust H_∞ master controller is studied to deal with the problems of input delay, parameter uncertainties, and multi-objective optimization in the linear system. A desired active control force is calculated by the master controller to guarantee the performances of the closed-loop system within allowable constraint ranges. The slave controller is applied to solve the problems of nonlinearity and the time constant uncertainty of the hydraulic actuator, an actual control law is obtained in this step. A quarter-car model with the hydraulic active suspension system is considered and the effectiveness of the proposed approach is illustrated by a realistic design example.

【 授权许可】

Unknown