CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine, capable of preventing/suppressing the corrosion of a nozzle injection hole while appropriately determining an EGR rate.SOLUTION: An ECU 150, which functions as a first acquisition part to acquire a nozzle front end temperature Tnzl of an injector 107 of an internal combustion engine 100, as a second acquisition part to acquire a head heat quantity Q as the heat quantity of a cylinder head 101a of the internal combustion engine 100, and as a determination part to determine a corrosion avoidance EGR rateγas a target EGR rate, on the basis of the nozzle front end temperature Tnzl acquired by the first acquisition part and the head heat quantity Q acquired by the second acquisition part, includes the first acquisition part, the second acquisition part and the determination part. The head heat quantity Q is specifically the heat receiving quantity of the cylinder head 101a.