Control device for internal combustion engine

摘要

The present invention relates to a control device for an internal combustion engine including a first control subject (35D) capable of controlling two different control amounts (Pim and Regr) influencing each other at a low frequency and second control subjects (52 and 33) capable of controlling the control amount at a high frequency. In the present invention, the first control amount and the second control amount are changed by the first control subject, and the first control amount and the second control amount are changed by the second control subject. Further, in the present invention, an operation amount (Mv) is input to the first control subject so that a first control amount deviation component (ΔPimL) with respect to a target value changing at a low frequency and a second control amount deviation component (ΔRegrL) with respect to the target value become zero, and operation amounts (Megr and Mth) are input to the second control subject so that a first control amount deviation component (ΔPimH) with respect to a target value changing at a high frequency and a second control amount deviation component (ΔRegrH) with respect to the target value become zero.

主权项

1. 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.