PROBLEM TO BE SOLVED: To provide a four-wheel drive vehicle which can enhance changeover responsiveness to a four-wheel drive state from a two-wheel drive state while suppressing an increase of the drag torque of a clutch, and a control method of the four-wheel drive vehicle.SOLUTION: A four-wheel drive vehicle 200 comprises: a drive force intermittent device 3 which can block the transmission of a drive force to a propeller shaft 2 from an engine 202; a drive shaft 112 which rotates by receiving a rotation force of the propeller shaft 2; a pair of hydraulic clutches 12A, 12B which are arranged between the drive shaft 112 and rear wheels 205L, 205R, respectively; and a control device 10 which controls a hydraulic unit 14 for supplying hydraulic oil to the pair of hydraulic clutches 12A, 12B. The control device 10 controls the hydraulic unit 14 so that the supply of the hydraulic oil to the hydraulic clutch 12A is performed prior to the supply of the hydraulic oil to the hydraulic clutch 12B when the four-wheel drive vehicle 200 is transited to a four-wheel drive state from a two-wheel drive state.SELECTED DRAWING: Figure 2
【課題】クラッチの引き摺りトルクの増大を抑制しながら2輪駆動状態から4輪駆動状態への切り替え応答性を高めることが可能な四輪駆動車及び四輪駆動車の制御方法を提供する。【解決手段】四輪駆動車200は、エンジン202からプロペラシャフト2への駆動力の伝達を遮断可能な駆動力断続装置3と、プロペラシャフト2の回転力を受けて回転する駆動軸112と、駆動軸112と後輪205L,205Rとの間にそれぞれ配置された一対の油圧クラッチ12A,12Bと、一対の油圧クラッチ12A,12Bへ作動油を供給する油圧ユニット14を制御する制御装置10とを備え、制御装置10は、四輪駆動車200が2輪駆動状態から4輪駆動状態に移行する際、油圧クラッチ12Aへの作動油の供給を油圧クラッチ12Bへの作動油の供給よりも優先して行うように油圧ユニット14を制御する。【選択図】図2
FOUR-WHEEL DRIVE VEHICLE AND CONTROL METHOD OF FOUR-WHEEL DRIVE VEHICLE
四輪駆動車及び四輪駆動車の制御方法
2016-03-07
Patent
Electronic Resource
Japanese
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 |
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