An ECU includes an injection controller that performs a partial lift injection in which a fuel injection valve is drivingly opened by an injection pulse by which a lift amount of a valve body of the fuel injection valve does not reach a full lift position, a first calculation section that calculates a first parameter correlated with an amount of induced electromotive force generated by a magnetic flux change during movement of the valve body to a closed position after OFF of the injection pulse of the partial lift injection, a second calculation section that calculates, based on a time-series change of the induced electromotive force after OFF of the injection pulse of the partial lift injection, a second parameter correlated with a voltage inflection point generated with reaching of the valve body to the closed position, and a correction section that corrects a time length of the injection pulse based on the first parameter and the second parameter.


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    Title :

    Fuel injection control device for internal combustion engine


    Contributors:

    Publication date :

    2019-04-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF



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