Title :
On the design of active suspension system by H∞ and mixed H2/H∞: An LMI approach
Author :
Abdellari, E. ; Mehdi, D. ; Saad, M.M.
Author_Institution :
ESIP, L.A.I.I., Poitiers, France
Abstract :
In this paper, an active suspension system is regarded as a control object. A quarter-car model is used to implement an LMI-based mixed H2/H∞ approach with reference model. The results are compared with those obtained with H∞ control. The main purpose of the controller is to achieve vibration isolation between different parts of the system. Some constraints must be considered, such as limited actuator force, good track-holding capability and limited suspension travel. The purpose and the constraints can be formulated as an optimality criterion. Careful tuning of weighting functions are necessary for H∞ design method
Keywords :
H∞ control; automobiles; control system synthesis; matrix algebra; vibration isolation; H∞ control design; LMI-based mixed H2/H∞ approach; active suspension system design; limited actuator force; limited suspension travel; optimality criterion; quarter-car model; reference model; track-holding capability; vibration isolation; weighting function tuning; Acceleration; Control systems; Design methodology; Equations; Hydrogen; Pensions; Road vehicles; Tires; Vehicle safety; Vibration control;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.876981
