Six-speed powertrain of an automatic transmission

Details Six-speed powertrain of an automatic transmission Six-speed powertrain of an automatic transmission

2007-01-30

2007-01-30

Ho, Ha (Department: 3681)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

C475S275000

Reexamination Certificate

active

11028289

ABSTRACT:
A six-speed powertrain includes a simple planetary gearset having three operational elements and a compound planetary gearset having four operational elements. Regarding the four operational elements of the compound planetary gearset, two of them are variably connected to an input shaft where one of the two is variable connected to a transmission case, another one always acts as an output element, and the other one variably receives torque from the simple planetary gearset at a reduce speed.

REFERENCES:
patent: 3339431 (1967-09-01), Croswhite et al.
patent: 6361468 (2002-03-01), Kato et al.
patent: 6558287 (2003-05-01), Hayabuchi et al.
patent: 6811513 (2004-11-01), Filanovsky et al.
patent: 6997843 (2006-02-01), Saitou
patent: 7044881 (2006-05-01), Tabata et al.
patent: 7052430 (2006-05-01), Stevenson et al.

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