Title :
Robust controller design for active suspension based on μ-synthesis
Author :
Yanqiu Chen ; Pengyun Song ; Jiye Zhang ; Keyue Zhang
Author_Institution :
State Key Lab. of Traction Power, Southwest Jiaotong Univ., Chengdu, China
Abstract :
In order to improve stability, vibration isolation of a suspension system with parametric uncertainty for vehicle, a robust controller was designed for the system based on μ-synthesis approach. Dynamic model of an active suspension system with perturbation was analyzed. The simulation of the control system was conducted in the MATLAB/SIMULINK emulation. The result indicates that in the condition of parameter perturbation and surface irregularity disturbance, a robust μ controller made the active suspension system stable, and vibration isolation performance was improved obviously.
Keywords :
automobiles; control system synthesis; robust control; suspensions (mechanical components); vehicle dynamics; vibrations; μ-synthesis approach; MATLAB-SIMULINK emulation; active suspension system; parameter perturbation; parametric uncertainty; robust controller design; stability; surface irregularity disturbance; vehicle; vibration isolation performance; Acceleration; Analytical models; Mathematical model; Robustness; Suspensions; Uncertainty; Vehicles; μ-synthesis; active suspension; robust control;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6023773
