Speed sensitive on-demand torque coupling differential

Details Speed sensitive on-demand torque coupling differential Speed sensitive on-demand torque coupling differential

1999-04-23

2000-05-09

Ta, Khoi Q.

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Control of differential planetary gearing

475 86, 475231, F16H 4820

Patent

active

060596805

ABSTRACT:
An axle case assembly is provided with a speed sensitive torque coupling mechanism used to transmit torque from the ring gear to a planetary differential assembly. The differential assembly provides torque transfer proportional to the speed difference between the ring gear sub-assembly and a planetary gear set sub-assembly, wherein the invention splits a differential case assembly into two primary pieces and a speed sensitive mechanism is installed between each piece. The mechanism is entirely contained inside an axle differential case assembly. An optional limited slip device may be provided for the differential gears. The torque transmission coupling assembly eliminates the need for a center differential in the transfer case, i.e. an interaxle differential, thereby reducing the driveline complexity and cost without requiring a separate torque coupling in the transfer case or in-line with the driveline.

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