Title :
Performance improvement of active suspension system using mixed H2/H∞ technique
Author :
Amani, A.M. ; Yazdanpanah, M.J. ; Sedigh, A.K.
Author_Institution :
Electr. & Comput. Eng. Dept., Tehran Univ., Iran
Abstract :
In this paper, a mixed H2/H∞ controller is designed for 1/4 car suspension model. Neither H2 nor H∞ controllers can provide goals of active suspension separately (i.e. minimizing body vertical acceleration considering restriction on suspension displacement). So, in this paper both objectives are considered in a mixed H2/H∞ problem. The Riccati equations are solved using a recursive algorithm and the mixed H2/H∞ controller performance is compared with H2 and H∞ controllers through frequency and time domain simulations.
Keywords :
H∞ control; Riccati equations; acceleration control; automobiles; control system synthesis; frequency-domain analysis; recursive estimation; time-domain analysis; vibration control; H2/H∞ controller; Riccati equations; active suspension system; body vertical acceleration; car suspension model; controller design; frequency domain simulation; mixed H2/H∞ technique; recursive algorithm; suspension displacement; time domain simulation; Acceleration; Automobiles; Control systems; Displacement control; Hydrogen; Lifting equipment; Optical computing; Riccati equations; Roads; Uncertainty;
Conference_Titel :
Control Applications, 2003. CCA 2003. Proceedings of 2003 IEEE Conference on
Print_ISBN :
0-7803-7729-X
DOI :
10.1109/CCA.2003.1223310
