Open AccessRobust control for Macpherson active suspension using saturated RISE controller
Author(s) -
Huyen T. Dinh
Publication year - 2017
Publication title -
khoa học công nghệ
Language(s) - English
Resource type - Journals
ISSN - 1859-0128
DOI - 10.32508/stdj.v20ik5.1158
Subject(s) - skyhook , control theory (sociology) , suspension (topology) , sprung mass , controller (irrigation) , lyapunov function , active suspension , pid controller , acceleration , displacement (psychology) , computer science , engineering , mathematics , control (management) , control engineering , actuator , physics , damper , temperature control , classical mechanics , quantum mechanics , homotopy , agronomy , nonlinear system , pure mathematics , artificial intelligence , psychotherapist , biology , psychology
This paper introduces a robust control method for car’s Macpherson active suspensions included uncertainties and exogenous disturbances. Based on saturated RISE control methodology, control force is guaranteed to be limited to a priori limit. Lyapunov stability analysis is exploited to prove control errors including vertical displacement, velocity and acceleration of the sprung mass asymptotically go to zero, so the ride comfort is improved. Simulations are performed to show the effectiveness of the proposed method in both time domain and frequency domain in comparison with the active suspension with PID controller, the semi-active suspension with a modified Skyhook control and the passive suspension.