To suppress the excessive power consumption when performing abnormality diagnosis processing during the motoring of an engine.SOLUTION: When a prescribed condition is established, an abnormality diagnosis part stops fuel supply to an engine through a motoring control part, and starts motoring for rotating a crankshaft of the engine by the drive of a motor (step S40). The abnormality diagnosis part determines the presence or absence of an abnormality of an oxygen sensor within a second regulation time T2 being a constant period in which the engine is applied with the motoring (step S70, step S200), and determines that an abnormality diagnosis is finished after the lapse of the second regulation time T2 (step S300). When the presence or absence of the abnormality of the oxygen sensor is determined before the lapse of the second regulation time T2, the abnormality diagnosis part finishes the motoring of the engine through the motoring control part at timing at which processing related to the abnormality diagnosis is finished even before the lapse of the second regulation time T2 (step S90).SELECTED DRAWING: Figure 3

    【課題】エンジンのモータリング中に異常診断処理を行うに際して、過剰な電力消費を抑える。【解決手段】異常診断部は、所定の条件が成立すると、モータリング制御部を通じて、エンジンへの燃料供給を停止させるとともにモータの駆動によってエンジンのクランク軸を回転させるモータリングを開始させる(ステップS40)。異常診断部は、エンジンがモータリングされている一定期間である第2規定時間T2内に酸素センサの異常の有無を判定し(ステップS70、ステップS200)、第2規定時間T2の経過後に異常診断が完了したと判定する(ステップS300)。異常診断部は、第2規定時間T2の経過前に酸素センサの異常の有無が判定された場合には、第2規定時間T2の経過前であっても異常診断に関する処理が完了したタイミングでモータリング制御部を通じてエンジンのモータリングを終了させる(ステップS90)。【選択図】図3


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    Title :

    ENGINE ABNORMALITY DIAGNOSIS DEVICE OF HYBRID VEHICLE


    Additional title:

    ハイブリッド車両のエンジン異常診断装置


    Contributors:

    Publication date :

    2019-10-31


    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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