CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

摘要

The present invention relates to a control apparatus for an internal combustion engine which implements coordinated control of the quantity of EGR gas supplied by an exhaust gas recirculation (EGR) apparatus and the quantity of supercharging by a supercharger equipped with a variable flow rate mechanism. In particular, the control apparatus is characterized in being provided with: a state quantity estimation section (77) that calculates the excess oxygen factor in the cylinders on the basis of the operation state of the internal combustion engine; and a switching means (81) for switching the opening angle commands for the opening angle of the EGR valve and the opening angle of the variable flow rate mechanism of the supercharger when the internal combustion engine is determined to be in a state of transition on the basis of the excess oxygen factor, such that the opening angles of the EGR valve and the variable flow rate mechanism are smaller than normal.