Fialho, IanBalas, Gary J.2008-06-182008-06-182002-01Fialho, I. And Balas, G. J. (2002). "Road Adaptive Active Suspension Design using Linear Parameter-Varying Gain-Scheduling." IEEE Transactions on Control Systems Technology. 10(1), 43-54.https://hdl.handle.net/11299/37267©2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.This paper presents a novel approach to the design of road adaptive active suspensions via a combination of linear parameter-varying control and nonlinear backstepping techniques. Two levels of adaptation are considered: the lower level control design shapes the nonlinear characteristics of the vehicle suspension as a function of road conditions, while the higher level design involves adaptive switching between these different nonlinear characteristics, based on the road conditions. A quarter car suspension model with a nonlinear dynamic model of the hydraulic actuator is employed. Suspension deflection, car body acceleration, hydraulic pressure drop, and spool valve displacement are used as feedback signals. Nonlinear simulations show that these adaptive suspension controllers provide superior passenger comfort over the whole range of road conditions.en-USactive suspensionslinear parameter-varying controlArticle