Control system for internal combustion engine and controlling method for internal combustion engine

摘要

A control system executes failure detection of a direct injector when a port injector stops injection and the direct injector injects, and executes the failure detection when a recirculation passage is closed by an EGR valve.

主权项

1. A control system for an internal combustion engine, the internal combustion engine including: a direct injector that directly injects fuel into a combustion chamber of the internal combustion engine; a port injector that injects the fuel into an intake passage; a recirculation passage that recirculates exhaust gas flowing through an exhaust passage to the intake passage; and a valve provided in the recirculation passage, the valve being configured to open and close the recirculation passage, the control system comprising:
an electronic control unit configured to execute failure detection of the direct injector in a state that the direct injector injects the fuel when fuel injection by the port injector is stopped and the recirculation passage is closed by the valve.