FUEL INJECTION CONTROL DEVICE

A fuel injection control device has a detection unit (56), a correction value calculation unit (S12, S13), and a conduction time calculation unit (S15). The detection unit detects a current increase speed that is a speed of increasing an electric current flowing in an electromagnetic coil in accorda...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAKANO, Tomohiro, SATAKE, Nobuyuki
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A fuel injection control device has a detection unit (56), a correction value calculation unit (S12, S13), and a conduction time calculation unit (S15). The detection unit detects a current increase speed that is a speed of increasing an electric current flowing in an electromagnetic coil in accordance with the start of conducting the electromagnetic coil during partial lift injection in which a valve body starts valve closing operation before the valve body reaches a maximum valve opening position after the valve body starts valve opening operation. The correction value calculation unit calculates a correction value for a requested injection quantity on the basis of the detected current increase speed. The conduction time calculation unit calculates a conduction time of the electromagnetic coil during the partial lift injection on the basis of the requested injection quantity corrected by the correction value.