CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine that can suppress injection amount of a high-octane fuel without undermining an inhibiting effect on knocking etc. in a low-rotation high-load region.SOLUTION: A port injector injects first fuel that is separated from mixed fuel of alcohol and gasoline and that has a higher octane number than that of the mixed fuel into an intake port. A direct injection injector injects second fuel that is separated from the mixed fuel and that has a lower octane number than that of the mixed fuel into a cylinder of an engine. When a driving state specified by a cylinder interior intake amount of the engine and engine speed is within a first region of low rotation and high load, an ECU allows injection of the first fuel by the port injector and then allows divided injection of the second fuel by the direct injection injector into an intake process and a compression process.