Transfer case cold shift assist

Details Transfer case cold shift assist Transfer case cold shift assist

1990-12-07

1992-04-21

Hill, Mitchell J.

Motor vehicles

Having four wheels driven

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

180249, 180250, B60K 2308

Patent

active

051059002

ABSTRACT:
The present invention provides a motor vehicle cold shift assist system for selectively and automatically connecting the non-driven wheels to its associated axle drive mechanism under certain operational and temperature conditions for counteracting the inertial loading acting on the transfer case synchronizer clutch mechanism. The present invention substantially reduces the shift resistance encountered upon the vehicle operator subsequently shifting into the four-wheel drive mode during cold weather conditions.

REFERENCES:
patent: 2913929 (1959-11-01), Anderson
patent: 4341281 (1982-07-01), Nagy
patent: 4381828 (1983-05-01), Lunn et al.
patent: 4677873 (1987-07-01), Eastman et al.
patent: 4770280 (1988-09-01), Frost
patent: 5033575 (1991-06-01), Takeshita

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