DocumentCode :
1498760
Title :
Optimized Control of Semiactive Suspension Systems Using H 
Robust Control Theory and Current Signal Estimation
Author :
Fallah, Mohammad Saber ; Bhat, Rama B. ; Xie, Wen Fang
Author_Institution :
Dept. of Mech. & Ind. Eng., Concordia Univ., Montreal, QC, Canada
Volume :
17
Issue :
4
fYear :
2012
Firstpage :
767
Lastpage :
778
Abstract :
In this paper, an optimized modified skyhook control for the semiactive Macpherson suspension system, equipped with a magnetorheological (MR) damper, is investigated. Using H∞ robust control theory and a 2-D dynamic model, including the kinematics of the suspension system, a robust output feedback controller is developed. The combination of a linear matrix inequality (LMI) solver and genetic algorithm (GA) is adopted to optimize the control gains. Further a 3-D kinematic model is introduced to evaluate the kinematic performance of the controlled suspension system. An inverse dynamic model of the MR damper is obtained based on the experimental results for tuning the input current signal. The effectiveness of the control system is discussed and validated through the simulations and experiment.
Keywords :
H∞ control; feedback; genetic algorithms; linear matrix inequalities; magnetorheology; robust control; suspensions (mechanical components); vibration control; 2D dynamic model; H∞ robust control theory; LMI; MR damper; current signal estimation; genetic algorithm; kinematic model; linear matrix inequality solver; magnetorheological damper; optimized modified skyhook control; robust output feedback controller; semiactive Macpherson suspension system; Damping; Force; Mathematical model; Shock absorbers; Vehicle dynamics; Vehicles; Kinematic performance; Macpherson suspension system; ride comfort; robust control;
fLanguage :
English
Journal_Title :
Mechatronics, IEEE/ASME Transactions on
Publisher :
ieee
ISSN :
1083-4435
Type :
jour
DOI :
10.1109/TMECH.2011.2126590
Filename :
5752861
Link To Document :
