PROBLEM TO BE SOLVED: To provide a four-wheel drive vehicle, which suppresses generation of abnormal sound in an all cylinder operation mode and also suppresses generation of abnormal sound in a cylinder reducing operation mode while suppressing deterioration in fuel economy.SOLUTION: A four-wheel drive vehicle 10, which has: an engine 14 configured to be switchable between an all-cylinder operation mode and a cylinder reducing operation mode; transmitting means that transmits output torque of the engine 14 to front wheels 12F and rear wheels 12R; and a coupling 28 for adjusting torque distributed to the rear wheels 12R, is provided with abnormal sound suppressing means 34 that increases the distribution of torque to the rear wheels 12R so as to suppress generation of abnormal sound in the torque transmitting means. The abnormal sound suppressing means 34 changes the distribution of torque to the rear wheels 12R depending on an operation area where the torque transmitting means becomes an abnormal sound generation state in the all-cylinder operation mode and in the cylinder reducing operation mode.SELECTED DRAWING: Figure 1

    【課題】四輪駆動車において、燃費の悪化を抑制しつつ全筒運転モードで異音の発生を抑制すると共に減筒運転モードで異音の発生を抑制することができるようにする。【解決手段】全筒運転モードと減筒運転モードとを切換可能に構成されたエンジン14と、エンジン14の出力トルクを前輪12Fと後輪12Rとに伝達するトルク伝達手段と、後輪12Rに配分するトルクを調整するカップリング28とを有する四輪駆動車10に、トルク伝達手段で異音が発生することを抑制するように後輪12Rに対するトルク配分を増大させる異音抑制手段34が備えられ、異音抑制手段34は、全筒運転モードと減筒運転モードとでトルク伝達手段が異音発生状態となる運転領域に応じて後輪12Rに対するトルク配分を変更させる。【選択図】図1


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    Title :

    CONTROL DEVICE OF FOUR-WHEEL DRIVE VEHICLE AND FOUR-WHEEL DRIVE VEHICLE


    Additional title:

    四輪駆動車の制御装置及び四輪駆動車


    Contributors:

    Publication date :

    2016-08-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 / F16F SPRINGS , Federn




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