Multiple speed overdrive transmission for a motor vehicle

Details Multiple speed overdrive transmission for a motor vehicle Multiple speed overdrive transmission for a motor vehicle

1999-06-18

2000-07-04

Estremsky, Sherry L.

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

475277, 475278, F16H 362

Patent

active

060831359

ABSTRACT:
A multiple speed transmission for motor vehicles includes three simple planetary gearsets, and hydraulically actuated friction clutches and brakes for controlling operation of the gearsets and altering the torque delivery path between an input shaft and an output shaft. A friction brake is provided for operation in reverse drive to share the torque reaction with another friction brake. The transmission is suited to produce six or seven forward speed ratios and a reverse drive ratio.

REFERENCES:
patent: 3863524 (1975-02-01), Mori et al.
patent: 3971268 (1976-07-01), Murakami et al.
patent: 5049116 (1991-09-01), Asada
patent: 5230664 (1993-07-01), Michioka et al.

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