Patent ID: 7949458

Claim:
A control apparatus for controlling a controlled variable of a controlled object by a control input, comprising: controlled variable-detecting means for detecting the controlled variable; target controlled variable-setting means for setting a target controlled variable serving as a target to which the controlled variable is controlled; feedback correction value-calculating means for calculating a feedback correction value for performing feedback control of the controlled variable such that the controlled variable is caused to converge to the target controlled variable, with a predetermined feedback control algorithm; first operational state parameter-detecting means for detecting a first operational state parameter indicative of an operational state of the controlled object, except for the controlled variable; feedforward input-calculating means for calculating a feedforward input for feedforward-controlling the controlled variable to the target controlled variable, using a correlation model representative of a correlation between the feedforward input and the first operational state parameter, and the first operational state parameter; and control input-calculating means for calculating the control input based on a value obtained by correcting the feedforward input using the feedback correction value, wherein said feedforward input-calculating means calculates a modification value for making the feedback correction value equal to a predetermined target value with a predetermined control algorithm, modifies one of the first operational state parameter and the correlation model using the modification value, and calculates the feedforward input using the modified one of the first operational state parameter and the correlation model and the other thereof.