Patent ID: 8150784

Claim:
A control system for a controlled object in a time variant system with dead time, comprising: a storage device which stores a target value (r) for an output value of said controlled object and a plurality of system parameter preset values which represent a plurality of system parameters of said controlled object, and is configured so that all or a part of said plurality of system parameter preset values have specified time variant characteristics; a state predicting unit which, based on said system parameter preset values stored in said storage device, and an output value at the present time instant and an input value (u T ) in the past of said controlled object, predicts the value of a specified state variable (x), including said output value, at a future time instant (t+L) which is later than the present by exactly said dead time; and a sliding mode control unit which, based on said target value (r) at the future time instant (t+L) stored in said storage device, said system parameter preset values, and said state variable (x) at the future time instant (t+L) predicted by said state predicting unit, performs sliding mode control operation so as to constrain said state variable (x) at the future time instant (t+L) to sliding mode of the future time instant (t+L), and outputs an actuation value (u) which is to be applied to said controlled object.