PROBLEM TO BE SOLVED: To provide a vehicle power transmission system including a crank continuously variable transmission, capable of using an engine brake while avoiding the increase in axial dimensions of the power transmission system.SOLUTION: If a vehicle decelerates at a time of forward movement, a driving force is reversely transmitted from driving wheels W to a first output shaft 12. However, a first one-way clutch 21 is disengaged, so that the driving force is not transmitted to an engine E via a continuously variable transmission T1 but the driving force transmitted from the driving wheels W is reversely transmitted to the engine E via a planetary gear mechanism 35 of a power transmission switching mechanism SC, as well as a ring gear 38, a carrier 37, a sun gear 36, an intermediate transmission mechanism 60, and an auxiliary transmission T2 to actuate an engine brake.

    【課題】クランク式無段変速機構を備える車両用動力伝達装置において、動力伝達装置の軸方向寸法の大型化を回避しながらエンジンブレーキを使用可能にする。【解決手段】車両の前進走行時に減速すると、駆動輪Wから第1出力軸12に駆動力が逆伝達されるが、第1ワンウェイクラッチ21の係合が解除されるため無段変速機T1を介してエンジンEに駆動力は伝達されず、駆動輪Wから伝達された駆動力が、動力伝達切換機構SCの遊星歯車機構35を介して、リングギヤ38、キャリヤ37、サンギヤ36、中間伝達機構60と補助変速機T2を介してエンジンEに逆伝達されてエンジンブレーキが作動する。【選択図】図14


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    Titel :

    VEHICLE POWER TRANSMISSION SYSTEM


    Weitere Titelangaben:

    車両用動力伝達装置


    Beteiligte:

    Erscheinungsdatum :

    2015-11-24


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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