Abstract
This paper presents a detailed literature review about Linear Parameter Varying (LPV) approaches applied to vehicle suspension systems. Indeed many works have been devoted to vehicle (active and semi-active) suspension in the past 20 years, because this subsystem in the only one affecting passenger comfort and road holding. Moreover several studies have also been concerned with global vehicle dynamic control using the suspension systems in collaboration with other subsystems (steering, braking …). On the other hand, the LPV approaches have proved to be very efficient to control non linear systems as well as to provide some kind of adaptive control. Naturally many LPV methods have been developed for suspension systems in order to take into account the nonlinear characteristics of the dampers, to adapt the suspension performance to the passenger request or to the road profile, to make the suspension systems collaborate with other subsystems, or to provide a fault tolerant control in case of damper loss of efficiency. This survey paper will make a deep analysis about the recent studies dedicated to vehicle suspension systems aiming at providing a better insight on the type of LPV methods that have been considered.
Highlights
Approaches for Suspension Systems.Control of Linear Parameter Varying (LPV) systems has attracted more and more attention in recent decades since they have shown to be a very interesting extension of the robust control theory to a large class of dynamical systems
The LPV approach is today recognized as a well-suited tool to handle system nonlinearities and to make the control performances varying in real-time, through a suitable definition of varying parameters
The LPV approach has been studied in numerous research studies in recent years on the suspension control problem
Summary
The recent review paper [3] presents polytopic LPV approaches developed for intelligent automotive control systems. It does present other LPV approaches, nor a detailed description of LPV studies on suspension control. To catch the clues for the developments of LPV methods to suspension systems, it is of importance to present what are the objects of those studies, namely the automotive vertical dynamics. It is worth noting that most of the materials presented in the two sections have been discussed with more details in several PhD thesis as [4,5,6,7,8,9]
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