Oblon, McClelland, Maier & Neustadt, L.L.P.
Four-wheel drive vehicle
A four-wheel drive vehicle includes: a driving force transmission system which transmits torque of a drive source to front wheels and rear wheels via gear mechanisms; a clutch provided in the driving force transmission system and capable of controlling an amount of the torque transmitted to the rear wheels; and a pressing mechanism which presses the clutch by transforming a part of the torque transmitted to the rear wheels into axial thrust. In the driving force transmission system, gear ratios of the gear mechanisms are set such that a direction of a differential rotation between a drive shaft connected to an input side of the clutch and a drive shaft connected to an output side of the clutch is not reversed even when a steered angle of the front wheels changes to a maximum value while the four-wheel drive vehicle is traveling forwards.
JTEKT CORPORATION
B F B Y
B60K F16H B60K Y10T
inventional inventional inventional additional
Hiroshi Akihiro Takashi Masahiro
Takuno Ohno Hosokawa Horaguchi