Drive arrangement for a four wheel drive vehicle

Details Drive arrangement for a four wheel drive vehicle Drive arrangement for a four wheel drive vehicle

1989-04-21

1990-11-06

Hill, Mitchell J.

Motor vehicles

Having four wheels driven

180248, B60K 1734, B60K 4100

Patent

active

049678680

ABSTRACT:
A drive arrangement for a four wheel drive vehicle is equipped with a planetary gear set for driving the front wheels which can operate in either direct drive or with a speed increase and which is shifted according to the steering angle .beta. sensed at the front pair of wheels. To avoid an excessively high jump in speed during the transition from direct drive to the increased speed mode, the planetary gearset is gradually shifted, i.e., the planetary gear clutch and/or brake are allowed to slip in proportion to the steering angle .beta..

REFERENCES:
patent: 3923113 (1975-12-01), Pagdin
patent: 4422349 (1983-12-01), Matsumoto et al.
patent: 4538700 (1985-09-01), Suzuki
patent: 4669559 (1987-06-01), Fukui
patent: 4696365 (1987-09-01), Ishimori et al.
patent: 4727954 (1988-03-01), Matsumoto

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