To alleviate impact at the engagement of an on-off clutch arranged between an internal combustion engine and an electric motor when staring the internal combustion engine in a hybrid vehicle.SOLUTION: A fuel injection control device is given in a hybrid vehicle with an on-off clutch which is arranged at a power transmission path and disengaged in a release state between an internal combustion engine and an electric motor. The fuel injection control device performs, at the time of starting the internal combustion engine, fuel injection at the start time by use of a direct injection injector, and then shifts to fuel injection using a port injector using the port injector after the fuel injection at the start time. The fuel injection control device starts the fuel injection at the start time through the direct injection injector after receiving a start command of the internal combustion engine, and the fuel injection at the start time continues, when requested injection quantity of the internal combustion engine is less than minimum injection quantity of the direct injection injector, after the condition where the requested injection quantity of the internal combustion engine is less than the minimum injection quantity of the direct injection injector.SELECTED DRAWING: Figure 4

    【課題】ハイブリッド車両における内燃機関の始動時に、内燃機関と電動機との間に配置された断接クラッチの係合時の衝撃を緩和することを目的とする。【解決手段】燃料噴射制御装置は、動力伝達経路に設けられ、解放状態とされることで内燃機関と電動機との間の連結を切り離す断接クラッチを備えたハイブリッド車両において、内燃機関の始動時に直噴インジェクタを用いた始動時燃料噴射を実施し、始動時燃料噴射の後にポートインジェクタを使用したポートインジェクタ使用燃料噴射に移行する。燃料噴射制御装置は、内燃機関の始動指令によって直噴インジェクタによる始動時燃料噴射を開始し、前記内燃機関の要求噴射量が前記直噴インジェクタの最小噴射量よりも少ない状態となった場合、始動時燃料噴射を内燃機関の要求噴射量が直噴インジェクタの最小噴射量よりも少ない状態となった時点よりも後まで継続する。【選択図】図4


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    Title :

    FUEL INJECTION CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE


    Additional title:

    内燃機関の燃料噴射制御装置


    Contributors:

    Publication date :

    2023-08-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



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