Power transmission system for a four-wheel drive vehicle

Details Power transmission system for a four-wheel drive vehicle Power transmission system for a four-wheel drive vehicle

1990-03-15

1991-04-09

Hill, Mitchell J.

Motor vehicles

Having four wheels driven

180247, 180249, B60K 1734, B60K 2308

Patent

active

050056620

ABSTRACT:
A torque distribution deciding control unit and an oil hydraulic clutch having opposite disks are provided. The clutch is disposed in a power transmitting system for four-wheel drive. One of disks is operatively connected to one of side gears of a central differential through a gear train and the other of the disks is operatively connected to the other side gear of the central differential through another gear train, whereby torque is transmitted to front and rear wheels at a distribution ratio. Loads on wheels such as weights on front and rear axles are detected. The control unit operates the clutch so as to distribute the torque at a ratio in accordance with loads on both axles.

REFERENCES:
patent: 4630704 (1986-12-01), Yamakawa et al.
patent: 4805721 (1989-02-01), Takahashi et al.
patent: 4896738 (1990-01-01), Kodama

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