Torque distribution control system for four wheel drive vehicle

Details Torque distribution control system for four wheel drive vehicle Torque distribution control system for four wheel drive vehicle

1993-05-25

1994-09-13

Hill, Mitchell J.

Motor vehicles

Having four wheels driven

180247, 180248, 3644241, B60K 17348

Patent

active

053460324

ABSTRACT:
A driving torque distribution control system for a four wheel drive vehicle includes a torque distributing clutch provided in a drive path for the front wheels, and a controller for controlling a driving torque transmitted to the front wheels through the clutch, in accordance with a corrected front and rear wheel speed difference which is a difference resulting from subtraction of a dead band from a sensed actual front and rear wheel speed difference. In order to improve the controllability near the cornering limits of the vehicle without deteriorating the driving ability in a low lateral acceleration cornering operation, the controller sets the dead band so that the dead band increases as the lateral acceleration of the vehicle increases.

REFERENCES:
patent: 4773500 (1988-09-01), Naito
patent: 4776424 (1988-10-01), Naito
patent: 4874056 (1989-10-01), Naito
patent: 4887689 (1989-12-01), Naito
patent: 4890685 (1990-01-01), Naito
patent: 5010974 (1991-04-01), Matsuda
patent: 5060747 (1991-10-01), Eto
patent: 5251719 (1993-10-01), Eto et al.

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