Control system for split axle drive mechanism

Details Control system for split axle drive mechanism Control system for split axle drive mechanism

1981-05-29

1983-10-04

Mitchell, David M.

Motor vehicles

Having four wheels driven

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

180 241, 192 008, 192 0096, 192 358, B60K 1734, B60K 2308

Patent

active

044073879

ABSTRACT:
A part-time four-wheel drive vehicle has a transfer case and a split axle drive mechanism for the selectively driving two vehicle wheels. The split axle drive mechanism has a clutch associated with one of the differential side gears for preventing back drive to the transfer case in the two-wheel drive mode. A control system for operating the clutch responsive to the operational mode of the transfer case comprises a vacuum motor and a solenoid operated two-way valve energized by way of a switch in the transfer case. The control system also includes a pneumatic time delay and a vacuum check valve.

REFERENCES:
patent: 3123169 (1964-03-01), Young et al.
patent: 3283298 (1966-11-01), Kaiser
patent: 4298085 (1981-11-01), Monoto et al.
patent: 4341281 (1982-07-01), Nagy
Paul Weissler, "AMC's State-of-the-Art 4WD", Mechanics Illustrated, Jan. 1981, pp. 68-70, 90.

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