Control system for a four-wheel drive vehicle

Details Control system for a four-wheel drive vehicle Control system for a four-wheel drive vehicle

1985-03-20

1987-12-29

Love, John J.

Motor vehicles

Having four wheels driven

With manually operated means for disengaging drive to one or...

74665T, 74866, 180233, B60K 1734

Patent

active

047154675

ABSTRACT:
A control system for a four-wheel drive vehicle powered by an engine, having a hydraulically operated transfer clutch for transmitting the power of the engine to auxiliary driving wheels. A hydraulic circuit is provided for controlling the transfer clutch, and an electric circuit is provided for controlling the hydraulic circuit. The hydraulic circuit and electric circuit are so arranged that the clutch engaging torque decreases with a decrease of the load on the engine, thereby preventing tight corner braking during sharp cornering.

REFERENCES:
patent: 4369671 (1983-01-01), Matsumoto et al.
patent: 4466502 (1984-08-01), Sakai
patent: 4481877 (1984-11-01), Takano et al.
patent: 4514811 (1985-04-01), Daubenmier et al.
patent: 4538700 (1985-09-01), Suzuki
patent: 4576061 (1986-03-01), Yamakawa et al.

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