Control system and control method

Abstract

The present application provides a control system and a control method, and provides a technique for improving control accuracy. The control system has: a first control device that performs FF control on a control target using a first control output obtained by multiplying a factor value of a variation factor by a control gain; a second control device that calculates a second control output by multiplying the factor value by the control gain, calculates a third control output by integrating a deviation between an actual value and a target value of a state quantity, and performs FF control on the control target using the second control output and integral control using the third control output; a selection device that selects which control device to perform control on the control target; an unobservable variation factor prediction device that calculates an estimated factor value from the state quantity; and a control device switching determination device that determines which control device to select based on the estimated factor value.

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