To enable a vehicle to travel using only an operation area where fuel consumption of an engine is optimal by means of only a single CVT, without using an auxiliary transmission.SOLUTION: In a power train, in which power buffer means is interposed between an engine and a CVT and the engine is used only in an operation area where fuel consumption of the engine is optimal, (1) when a vehicle speed is constant, in a relation in which an engine output power Pe and vehicle travel power P1 satisfy a relational expression of Pe-P1>0, the engine performs intermittent driving with the output power Pe, and the power buffer means between the engine and the CVT buffers power from the engine and supplies the vehicle travel power P1=Pv to an input shaft of the CVT, meanwhile (2) when the vehicle speed is increased from the constant vehicle speed of V=Vc including time when a vehicle starts travelling, a value of Pe is controlled to a value at which the relational expression of Pe-Pv>0 can be maintained, in a period of time during which P1=Pv is increased up to a predetermined maximum value.SELECTED DRAWING: Figure 8

    【課題】補助変速機を使用することなく、単一のCVTのみによって、エンジンの燃費最良となる作動域のみ使用の車両走行を可能とする。【解決手段】エンジンとCVTとの間に動力緩衝手段を介設し、エンジンは燃費最良の作動領域のみを使用するパワートレンにおいて、1)車速一定時は、エンジン出力動力Peと車両走行動力P1がPe−P1>0の関係において、エンジンが出力動力Peの間欠駆動を行い、且つエンジンおよびCVT間の動力緩衝手段がエンジンからの動力を慣らしてCVTの入力軸へ車両走行動力P1=Pvを供給し、2)車両発進時を含め、車速一定V=Vcから車両加速を開始する時点のPeの値は、P1=Pvを所定の最大値まで増大させてゆく間、PeーPv>0を保持する値に制御する。【選択図】図8


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    Titel :

    POWER TRAIN HAVING POWER BUFFER MEANS PROVIDED BETWEEN ENGINE AND CONTINUOUS VARIABLE TRANSMISSION


    Weitere Titelangaben:

    エンジンと無段変速機との間に動力緩衝手段を設けたパワートレン


    Beteiligte:
    MIYAO TAKAYUKI (Autor:in)

    Erscheinungsdatum :

    25.11.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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 / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



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