Control circuit for hydrostatic all wheel drive vehicle

Details Control circuit for hydrostatic all wheel drive vehicle Control circuit for hydrostatic all wheel drive vehicle

1991-08-12

1993-04-06

Focarino, Margaret A.

Motor vehicles

Having four wheels driven

Including pump and fluid motor, or generator and electric...

180308, 60425, 60468, B60K 17356

Patent

active

051995255

ABSTRACT:
A hydrostatic drive system having valving which disengages power to selected drive wheel motors in response to a sensed lack of traction, while the driven vehicle is in motion. The valving also allows communication of fluid between the inlet port of one drive wheel motor and the outlet port of another, in response to the decoupling of one of the motors in order to prevent an abrupt transition.

REFERENCES:
patent: 3972186 (1976-08-01), Humphreys et al.
patent: 4402377 (1983-09-01), Brooks et al.
patent: 4484655 (1984-11-01), Sheppard
patent: 4579044 (1986-04-01), Johnson

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