Four-wheel drive control system

Details Four-wheel drive control system Four-wheel drive control system

1998-04-13

2000-03-14

Estremsky, Sherry L.

192 clutches and power-stop control

Clutches

Operators

475161, 180247, B60K 2308

Patent

active

060359889

ABSTRACT:
A control system for a 4WD vehicle has a rotation transmission device which can prevent a two-way clutch of the rotation transmission device from vibrating by repeatedly locking and unlocking when the vehicle is started in a cold environment. The rotation transmission device is mounted in the transfer. The transfer is provided with a temperature sensor for measuring the temperature of oil in the transfer. If the oil temperature as measured by the temperature sensor is below a predetermined value when the vehicle is started with the drive mode set at the 2WD position, the hub clutches are engaged to reduce the idling speed of the two-way clutch and thus to prevent the two-way clutch from locking.

REFERENCES:
patent: 4784236 (1988-11-01), Bausch et al.
patent: 5033575 (1991-07-01), Takeshita et al.
patent: 5105900 (1992-04-01), Adler et al.
patent: 5803197 (1998-09-01), Hara et al.

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