Full-time transfer case with synchronized range shift arrangemen

Details Full-time transfer case with synchronized range shift arrangemen Full-time transfer case with synchronized range shift arrangemen

1996-07-16

1998-01-06

Marmor, Charles A.

Planetary gear transmission systems or components

Differential planetary gearing

Differential or nondifferential planetary combined with...

475 86, 475205, F16H 3708

Patent

active

057048673

ABSTRACT:
A power transfer system is disclosed for a four-wheel drive vehicle operable for permitting a vehicle operator to select between various full-time and part-time four-wheel drive modes. The power transfer system includes a dual-planetary gear reduction unit that is operable for establishing high-range and low-range speed ratios, and a synchronized range shift mechanism that is adapted to permit the vehicle operator to shift on-the-fly for establishing full-time and part-time high-range and low-range four-wheel drive modes. The power transfer system includes an slip limiting/torque-biasing arrangement including an interaxle differential and a transfer clutch operable for controlling the magnitude of speed differentiation and torque biasing across the interaxle differential.

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