Full-time transfer case with synchronized layshaft-type range sh

Details Full-time transfer case with synchronized layshaft-type range sh Full-time transfer case with synchronized layshaft-type range sh

1996-02-13

1997-12-16

Marmor, Charles A.

Planetary gear transmission systems or components

Variable speed or direction transmission combined with...

475207, 180249, B60K 1735, B60K 2308, F16H 3708, F16H 6308

Patent

active

056978618

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 layshaft 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 electronically-controlled 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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