System for controlling a transfer clutch of a four-wheel drive v

Details System for controlling a transfer clutch of a four-wheel drive v System for controlling a transfer clutch of a four-wheel drive v

1987-09-25

1989-02-14

Pekar, John A.

Motor vehicles

With means for detecting wheel slip during vehicle...

180233, 180247, 36442601, B60K 2308, B60K 3100

Patent

active

048040592

ABSTRACT:
A four-wheel drive vehicle has a transmission, main drive wheels operatively connected to an output shaft of the transmission, auxiliary drive wheels, and a transfer clutch for transmitting output of the transmission to the auxiliary drive wheels. A control system is provided with a detector for detecting speed ratio of front-wheel speed and rear-wheel speed and for producing a speed ratio signal, which represents steering operation of the vehicle and for producing a steering angle signal. A control unit is responsive to the steering angle signal for controlling torque of the transfer clutch so as to cause the transfer clutch to slip in dependency on the steering angle signal.

REFERENCES:
patent: 4417641 (1983-11-01), Kageyama
patent: 4511014 (1985-04-01), Makita
patent: 4576061 (1986-03-01), Yamakawa et al.
patent: 4715466 (1987-12-01), Ishii et al.
patent: 4723624 (1988-02-01), Kawasaki et al.

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