Planetary gearing for automatic transmission

Details Planetary gearing for automatic transmission Planetary gearing for automatic transmission

1988-07-28

1990-07-10

Diehl, Dwight

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

475285, F16H 5710

Patent

active

049399551

ABSTRACT:
A planetary gearing for an automatic transmission comprises a main and auxiliary planetary gearings which are operatively coupled with each other. The auxiliary planetary gearing has a reduction drive state and a direct drive state and it shifts from the reduction drive state thereof to the direct drive state thereof when the main planetary gearing state has shifted up to the n-1 speed state thereof, where n is an integer not less than four. The main planetary gearing has n forward speeds.

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patent: 4744267 (1988-05-01), Lepelletier
patent: 4817462 (1989-04-01), Dach et al.
Service Manual of Automatic Transaxle of RN4F02A Type, RL4F02A Type (A261C06), Nissan Motor Company Ltd., 1984, p. 10.

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