Control and designing observer for active suspension system by using linear quadratic regulator

Control and designing observer for active suspension system by using linear quadratic regulator (LQR) is the purpose of this paper .In this respect, the linear quadratic regulator has been chosen for a controlling strategy, and the observer design is used for road profile estimation because all the states cannot be measured in real systems. It is indicated by the plotted results and in theory that the proposed controller will improve the road handling performances for the active suspension system compared with the passive case.