TY - JOUR AB - This paper presents a parameter-dependent controller design approach for vehicle active suspensions to deal with changes in vehicle inertial properties and existence of actuator time delays. By defining a parameter-dependent Lyapunov functional, matrix inequality conditions with reduced conservatism are obtained for the design of controllers. Feasible solutions can be obtained by solving a finite number of linear matrix inequalities (LMIs) embedded within a genetic algorithm (GA). Both state feedback and static output feedback controllers can be designed under a unified framework. Based on the measurement or estimation of the vehicle inertial parameters, a parameter-dependent controller could be implemented in practice. The presented approach is applied to a two-degree-of-freedom quarter-car suspension model. Numerical simulations on both bump and random road responses show that the designed parameter-dependent controllers can achieve good active suspension performance regardless of the variation on the sprung mass and the presence of actuator time delay. © 2008 Elsevier Ltd. All rights reserved. AU - Du, H AU - Zhang, N AU - Lam, J DA - 2008/11/11 DO - 10.1016/j.jsv.2008.03.066 EP - 556 JO - Journal of Sound and Vibration PY - 2008/11/11 SP - 537 TI - Parameter-dependent input-delayed control of uncertain vehicle suspensions VL - 317 Y1 - 2008/11/11 Y2 - 2024/03/29 ER -