Power train of automatic transmission

Details Power train of automatic transmission Power train of automatic transmission

2006-10-31

2010-06-01

Wright, Dirk (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

Reexamination Certificate

active

07727104

ABSTRACT:
A power train of an automatic transmission with eight forward speeds and two reverse speeds includes: a speed reduction unit including a first variable input member connected to an input shaft via a first clutch, first and second variably stopped members connected to a transmission case, and a reduced speed output member; an output unit including a reduced speed input member connected to the reduced speed output member, second and third variable input members connected to the input shaft via second and third clutches, respectively, a third variably stopped member connected to the transmission case, and a shifted speed output member connected to an output gear. A first brake variably stops the third variable stopped member; a second brake variably stops the first variable stopped member; and a third brake variably stops the second variable stopped member.

REFERENCES:
patent: 6217474 (2001-04-01), Ross et al.
patent: 6729993 (2004-05-01), Bucknor et al.
patent: 6752738 (2004-06-01), Martin et al.
patent: 7192378 (2007-03-01), Raghavan et al.

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