Motor vehicles – With means for detecting wheel slip during vehicle...
Patent
1988-12-06
1990-06-26
Hill, Mitchell J.
Motor vehicles
With means for detecting wheel slip during vehicle...
303 96, 36442602, B60L 310, B60T 832
Patent
active
049364049
ABSTRACT:
A wheel slip responsive traction control system particularly well suited for use with a four wheel drive vehicle having a hydraulic brake control mechanism for individually controlling a fluid pressure acting on a brake on each drive wheel. The traction control system includes a drive mode selector which offers to the vehicle driver a choice among a "normal drive" mode, a "front drive" mode and a "rear drive" mode. When the driver chooses the "normal drive" mode, the control system controls the brakes on both front and rear pairs of drive wheels so as to maintain their slip rates at less than a relatively low first limit. When the "front drive" mode is chosen, the front pair of drive wheels are so braked as to maintain their slip rate at less than a second limit higher than the first limit. When the "rear drive" mode is chosen, the brakes on the rear pair of drive wheels are so controlled as to maintain the rear wheel slip rate at less than the second limit.
REFERENCES:
patent: 3934938 (1976-01-01), Kuwana et al.
patent: 4344139 (1982-08-01), Miller et al.
patent: 4419654 (1983-12-01), Funk
patent: 4733760 (1988-03-01), Inagaki et al.
patent: 4759589 (1988-07-01), Leiber
Fuji Jukogyo Kabushiki Kaisha
Hill Mitchell J.
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