CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To prevent misfire due to an EGR gas upon deceleration in an engine with supercharger including an EGR device.SOLUTION: Changing-speed increasing control (e.g., control of improving cooling performance of an intercooler 23) is performed which increases a speed at which an EGR gas in an intake pipe 12 is changed to intake air upon the deceleration of an engine 11 (a speed at which the EGR gas is replaced to the intake air). If the speed at which the EGR gas in the intake pipe 12 is changed to the intake air by the changing-speed increasing control performed upon the deceleration is increased, scavenging of the EGR gas stayed in the intake pipe 12 can be promoted. As a result, the EGR gas in the intake pipe 12 is rapidly reduced upon the deceleration, an EGR gas amount filled in a cylinder is reduced in the early stage, and misfire due the EGR gas is prevented from the early stage upon the deceleration.