Planetary gear automatic transmission

Details Planetary gear automatic transmission Planetary gear automatic transmission

1995-12-21

1997-03-11

Wright, Dirk

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

475285, F16H 356

Patent

active

056095376

ABSTRACT:
An automatic transmission is provided with a gear train comprising a plurality of rotation elements for selecting one of a preset plurality of gear ratios between an input shaft and an output shaft. Further provided is a one way clutch which prevents rotation of a specific rotation element in one direction. By decreasing the acceleration of this rotation element in the reverse direction when there is a gear change such that the rotation direction of the element changes to reverse, acceleration of the element in the reverse direction is suppressed to a small value when the one way clutch prevents reverse rotation of the element, and impact due to stopping reverse rotation is thereby damped.

REFERENCES:
patent: 3863524 (1975-02-01), Mori et al.
patent: 4864892 (1989-09-01), Ando et al.
patent: 4938096 (1990-07-01), Takahashi et al.
patent: 4944719 (1990-07-01), Takahashi et al.
patent: 5478291 (1995-12-01), Morisawa et al.

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