Patent ID: 8855892

Claim:
A control device for an internal combustion engine comprising: a first control subject capable of controlling first and second control amounts influencing each other at a frequency lower than a predetermined frequency; and a second control subject capable of controlling the first and second control amounts at a frequency equal to or higher than the predetermined frequency, wherein the control device comprises a control part for inputting operation amounts to the first and second control subjects, respectively, so as to change operation states of the first and second control subjects; wherein the control part inputs an operation to the first control subject so that a first low-frequency component of a first deviation of the first control amount with respect to a first target control amount and a second low-frequency component of a second deviation of the second control amount with respect to a second target control amount become zero or approach zero, the first and second low-frequency components being components of the first and second deviations, respectively, which change at a frequency lower than the predetermined frequency, and wherein the control part inputs an operation amount to the second control subject so that a first high-frequency component of a the first deviation first target control and a second high-frequency component of a the second deviation that become zero or approach zero, the first and second high-frequency components being components of the first and second deviations, respectively, which change at a frequency higher than or equal to the predetermined frequency.