Drive system for a tractor

Details Drive system for a tractor Drive system for a tractor

1992-03-23

1993-09-28

Focarino, Margaret A.

Motor vehicles

Having four wheels driven

With means for braking either structure transmitting drive...

180197, 180249, 192 13R, 192 0082, B60K 17348, B60K 2308

Patent

active

052480208

ABSTRACT:
A drive system for a tractor which is operable in either a two wheel or a four wheel mode of operation. The drive system includes a control apparatus which automatically establishes a drive connection between a power source on the tractor and a front pair of tractor wheels through regulated operation of a normally engaged clutch assembly in response to application of service brakes on the tractor. Thus, the decreasing inertia of the power source, inherent with deceleration due to braking, is utilized to substantially equalize wheel slippage between front and rear pairs of wheels thereby advantageously improving braking performance especially as the tractor operates at relatively high speeds.

REFERENCES:
patent: 4466519 (1984-08-01), Romer
patent: 4747462 (1988-05-01), Herrmann et al.
patent: 4753312 (1988-06-01), Burgdorf et al.
patent: 4811811 (1989-03-01), Bergene
patent: 4878559 (1989-11-01), Moon et al.
patent: 4951775 (1990-08-01), Kittle et al.
patent: 4991679 (1991-02-01), Fujii et al.
patent: 5012884 (1991-05-01), Sato
patent: 5044458 (1991-09-01), Schwarz et al.

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