Driving-force distribution control system for...

Details Driving-force distribution control system for... Driving-force distribution control system for...

2006-12-19

2006-12-19

Nguyen, Thu V. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Control of power distribution between vehicle axis or wheels

Reexamination Certificate

active

07151991

ABSTRACT:
In a power distribution control system for a four-wheel-drive vehicle, a 4WD controller is electronically connected to a friction clutch for controlling a torque distribution ratio. The 4WD controller determines whether a past-history condition, a command torque, and a reversal-of-torque condition that an input direction of torque inputted into the friction clutch is reversed is satisfied. The 4WD controller outputs a countermeasure-of-noise command torque decreased from the current command torque as a command signal for the friction clutch, when the past-history condition, the command torque condition, and the reversal-of-torque condition are all satisfied.

REFERENCES:
patent: 6722482 (2004-04-01), Takuno et al.
patent: 6726593 (2004-04-01), Yamamoto et al.
patent: 4-103433 (1992-04-01), None
patent: 2001-253261 (2001-09-01), None

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