To attenuate torsional vibration while maintaining a function of a front and rear wheel drive force distribution device.SOLUTION: A front and rear wheel drive force distribution device for a four-wheel-drive car, which comprises a center differential device of a composite planetary gear type, and a differential restriction device of a hydraulic multiple plate type which variably controls torque distribution of front and rear wheels between a torque distribution set by the center differential device and a torque distribution of direct four-wheel drive, distributes an output torque of an engine, which is transmitted via a speed changer, to the front and rear wheels. This distribution device further comprises: a first clutch which constitutes the differential restriction device, and disconnects a carrier and an intermediate shaft; a second clutch which disconnects the intermediate shaft and a rear output shaft; and a damper mechanism which is provided on a torque transmission path of the first clutch.SELECTED DRAWING: Figure 3
【課題】前後輪駆動力配分装置の機能を維持しつつ捩り振動を減衰させる。【解決手段】複合遊星歯車式のセンターディファレンシャル装置と、前後輪のトルク配分をセンターディファレンシャル装置によって設定されたトルク配分と直結4輪駆動のトルク配分との間で可変制御する油圧多板式の差動制限装置と、を備え、変速機を介して伝達されるエンジンの出力トルクを前後輪に分配する4輪駆動車の前後輪駆動力配分装置において、差動制限装置を構成しキャリアと中間軸とを断接する第1のクラッチと、中間軸とリヤ出力軸とを断接する第2のクラッチと、第1のクラッチのトルク伝達経路に設けられたダンパ機構と、を備える。【選択図】図3
FRONT AND REAR WHEEL DRIVE FORCE DISTRIBUTION DEVICE AND CONTROL DEVICE FOR FRONT AND REAR WHEEL DRIVE FORCE DISTRIBUTION DEVICE
前後輪駆動力配分装置及び前後輪駆動力配分装置の制御装置
2019-04-25
Patent
Electronic Resource
Japanese
FRONT/REAR DRIVE FORCE DISTRIBUTION DEVICE OF ALL WHEEL DRIVE VEHICLE
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