Abstract
In this paper a control law was designed to accurately control the rod position of hydraulic servo system. Infact, due to its having a nonlinear model, the hydraulic servo system is not accurately stabilizedby a proportional controller and suffers from wind up phenomenon when applying the PI controller.To overcome the problems encountered by the action of these linear controllers, a sliding modecontroller with an integral and realizable reference compensation is used to obtain an accurateposition in addition to having a short settling time. The efficiency of the proposed scheme isillustrated using numerical simulations.
