Adaptive control for vehicle active suspension systems

This paper investigates the use of an adaptive control scheme for vehicle semi-active suspension system which utilizes new technologies in suspension system components. Based on a continuously estimated model, the controller makes predictions of the actual suspension characteristics and accordingly it minimizes a cost function which incorporates the difference between the desired and predicted suspension characteristics with weighting on the applied control signals. Simulation results show that the resulting system can provide better control performance as far as ride comfort and road handling are concerned in the presence of harsh road irregularities