| 摘要 |
PROBLEM TO BE SOLVED: To recover engine output torque to engine output torque in a state that an injector 15 is in an initial state.SOLUTION: A fuel injection control device of an engine comprises: an actual fuel injection amount calculation part 100a which calculates an actual fuel injection amount injected by an injector 15 on the basis of an intake air amount and an air-fuel ratio of an exhaust gas; an injector deterioration determination part 100b which determines whether or not the injector 15 is deteriorated by comparing the calculated actual fuel injection amount at a stable operation at which the engine is operated at a prescribed rotation number, and an initial fuel injection amount being a fuel injection amount when the injector 15 is in an initial state corresponding to a pulse width of a pulse signal applied to the injector at the stable operation; and a correction part 100c which advancingly corrects the application timing of the pulse signal to the injector 15 when it is determined that the injector 15 is deteriorated. |
