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 denning 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.
Parameter-dependent input-delayed control of uncertain vehicle suspensions
Parameterabhängige, eingangsverzögerte Regelung unsicherer Fahrzeugaufhängungen
Journal of Sound and Vibration ; 317 , 3-5 ; 537-556
2008
20 Seiten, 10 Bilder, 4 Tabellen, 31 Quellen
Aufsatz (Zeitschrift)
Englisch
Parameter-dependent input-delayed control of uncertain vehicle suspensions
Online Contents | 2008
|H2 optimal control of disturbance-delayed systems with application to vehicle suspensions
Kraftfahrwesen | 2007
|On Control Laws for Vehicle Suspensions Accounting for Input Correlations
Taylor & Francis Verlag | 1990
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