Abstract
It is well known that the servo system sometimes provides undesirable overshoot in transient responses for temporary disturbance such as the impulse disturbance. The response is caused from the action of the servo system which sweeps out the state variable of the integrator. In such cases, the transient response performance becomes worse in comparison to the one by the regulator system. In the present paper, a method for improvement of the transient response of the servo system based on the disturbance estimation and switching the control action is proposed. The effectiveness of the proposed method is verified by the pneumatic isolation table by numerical simulations.