Gear train of an automatic transmission for a vehicle

Details Gear train of an automatic transmission for a vehicle Gear train of an automatic transmission for a vehicle

2007-12-03

2010-12-14

Pang, Roger L (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

Reexamination Certificate

active

07850569

ABSTRACT:
A gear train of an automatic transmission for a vehicle includes: a first planetary gear set that receives an input speed from an input shaft and outputs a reduced speed; a second planetary gear set that receives the reduced speed of the first planetary gear set and selectively outputs a same speed or a reversed speed; and a third planetary gear set that receives the reduced speed of the first planetary gear set, the input speed from the input shaft, and the output speed of the second planetary gear set, and then outputs a shifted output speed.

REFERENCES:
patent: 7192378 (2007-03-01), Raghavan et al.
patent: 2002/0115522 (2002-08-01), Raghavan et al.
patent: 2008/0119318 (2008-05-01), Phillips et al.

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