@phdthesis{Nguyen2006, author = {Nguyen, Tuan-Anh}, title = {Application of optimization methods to controller design for active suspensions}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus-261}, school = {BTU Cottbus - Senftenberg}, year = {2006}, abstract = {By offering good ride safety and ride comfort to passenger cars, active suspensions have attracted more and more attentions of investigators. Numerous approaches of designing controller for active suspension systems have been introduced mostly restricted to linear time-invariant systems. In this dissertation, optimization methods are applied to a special three degree-of-freedom spatial car model with active suspensions to define an optimal controller. The optimal control law with state-feedback and disturbance-feed forward parts is derived by extending the linear-quadratic regulator (LQR) control to linear systems with measurable disturbances and combining it with a multi-criterion optimization (MCO) procedure. This allows to reduce the number of design variables of the MCO problem significantly. The approach is applied also to gain-scheduling control of the linear-parameter varying spatial car model. The effectiveness of the designed controller with respect to ride safety and ride comfort of the car in yaw motion is demonstrated through the simulation of double-lane-change maneuvers, where the paths are found by an optimization procedure.}, subject = {Fahrwerk; Reglerentwurf; Optimierung; Fahrzeugbau; Radaufh{\"a}ngung; Regler; Vehicle; Suspensions; Regulator}, language = {en} }