Torque distribution control system for a four-wheel drive motor

Planetary gear transmission systems or components – Differential planetary gearing – Spur gear differential

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180248, 180249, F16H 142

Patent

active

050662686

ABSTRACT:
A system for controlling torque distributed to front wheels and rear wheels of a motor vehicle. A planetary gear device including a first sun gear connected to an output shaft of a manual transmission, first and second planet pinions integral with each other, a carrier provided to rotatably support the pinions and operatively connected to the front wheels, and a second sun gear operatively connected to the rear wheels is disposed to distribute the torque to front wheels and rear wheels. The first planetary pinion is engaged with the first sun gear, and the second planetary pinion is engaged with the second sun gear. A fluid operated multiple-disk clutch selectively connects two of the first sun gear, the carrier and the second sun gear so as to restrict the differential operation of the planetary gear device.

REFERENCES:
patent: 4466502 (1984-08-01), Sakai
patent: 4481877 (1984-11-01), Takano et al.
patent: 4691593 (1987-09-01), Mueller
patent: 4702341 (1987-10-01), Taga et al.
patent: 4744437 (1988-05-01), Matsumoto
patent: 4779487 (1988-10-01), Pitsch et al.
patent: 4882950 (1989-11-01), Gausrab et al.
patent: 4884650 (1989-12-01), Fujiki et al.

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