Control apparatus for internal combustion engine

A control apparatus for an internal combustion engine including control targets that control two different controlled variables respectively, wherein depending on a first controlled variable that is the controlled variable controlled by a first control target as one of the control targets, a second controlled variable that is the controlled variable controlled by a second control target as the other control target changes, the control apparatus comprising

• a control unit configured to selectively perform single control that is control for controlling the second controlled variable to a target value thereof without considering a change in the first controlled variable that acts as a disturbance on control of the second controlled variable, and composite control that is control for controlling the second controlled variable to the target value thereof in consideration of the change in the first controlled variable that acts as the disturbance on the control of the second controlled variable, wherein
• the control unit is configured to control the second controlled variable to the target value thereof through the single control when an absolute value of a first controlled variable change rate that is an amount of change in the first controlled variable per unit time is equal to or smaller than a predetermined first controlled variable change rate, and controls the second controlled variable to the target value thereof through the composite control when the absolute value of the first controlled variable change rate is larger than the predetermined first controlled variable change rate.

A control apparatus for an internal combustion engine including control targets that control two different controlled variables respectively, wherein depending on a first controlled variable that is the controlled variable controlled by a first control target as one of the control targets, a second controlled variable that is the controlled variable controlled by a second control target as the other control target changes, the control apparatus comprising

• a control unit configured to selectively perform single control that is control for controlling the second controlled variable to a target value thereof without considering a change in the first controlled variable and a change in the second controlled variable that act as a disturbance on control of the second controlled variable, and composite control that is control for controlling the second controlled variable to the target value thereof in consideration of the change in the first controlled variable and the change in the second controlled variable that act as the disturbance on the control of the second controlled variable, wherein
• the control unit is configured to control the second controlled variable to the target value thereof through the single control when an absolute value of a first controlled variable change rate that is an amount of change in the first controlled variable per unit time is equal to or smaller than a predetermined first controlled variable change rate and an absolute value of a second controlled variable change rate that is an amount of change in the second controlled variable per unit time is equal to or smaller than a predetermined second controlled variable change rate, and controls the second controlled variable to the target value thereof through the composite control when the absolute value of the first controlled variable change rate is larger than the predetermined first controlled variable change rate or when the absolute value of the second controlled variable change rate is larger than the predetermined second controlled variable change rate.