Traction control system for four-wheel drive vehicle

Details Traction control system for four-wheel drive vehicle Traction control system for four-wheel drive vehicle

1990-10-09

1992-12-08

Focarino, Margaret A.

Motor vehicles

With means for detecting wheel slip during vehicle...

180248, 180249, 36442603, B60K 17348

Patent

active

051689553

ABSTRACT:
A traction control system is provided which is applicable to a four-wheel drive vehicle in which a torque split system is incorporated. The torque split system is operable to distribute engine torque to front and rear wheels by an engine torque distribution ratio of front to rear wheels variable based on a difference in rotational speeds between the front and rear wheels. The traction control system is responsive to a slippage ratio of the rotational speeds of the wheels to a vehicle speed greater than a preselected threshold to reduce engine torque to control the traction of the wheels. Therefore, the traction control is effectively carried out while ensuring yaw control of a vehicle body by means of the torque split control.

REFERENCES:
patent: 4890685 (1990-01-01), Naito
patent: 4976330 (1990-12-01), Matsumoto
patent: 4984649 (1991-01-01), Leiber et al.
patent: 5004064 (1991-04-01), Tezuka et al.
patent: 5014809 (1991-05-01), Matsuda

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