INTERNAL COMBUSTION ENGINE CONTROL UNIT

摘要

PROBLEM TO BE SOLVED: To suppress degradation in emission and degradation in drivability resulting from gaseous fuel remaining in a connection pipe.SOLUTION: An engine 10 includes a first injection valve 21 injecting a gaseous fuel and a second injection valve 22 injecting a liquid fuel as fuel injection valves, and supplies the fuel injected from the first injection valve 21 to an intake passage via a connection pipe 23. A control unit 80 determines whether an engine operating state using the gaseous fuel is a predetermined engine operating state in which a fuel injection quantity of the first injection valve 21 is changed to be reduced, and corrects the fuel injection quantity injected from the fuel injection valves to be reduced on the basis of a fuel low quantity of the gaseous fuel flowing to the intake passage from within the connection pipe 23 if determining that the engine operating state is the predetermined engine operating state.