Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Patent
1999-08-27
2000-11-14
Estremsky, Sherry
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
F16H 362
Patent
active
061463051
ABSTRACT:
A powertrain has an engine-driven power transmission that selectively provides six forward speed ratios, a neutral condition and a reverse speed ratio. The power transmission includes two simple planetary gear sets that are continuously interconnected between two members and selectively interconnected between two other members through a selectively engageable rotating torque-transmitting mechanism. The ring gear member of one of the planetary gear sets is continually connected with an output shaft. Three selectively engageable rotating torque-transmitting mechanisms connect a member of each planetary gear set as well as the interconnected members with an input shaft. Two selectively engageable stationary torque-transmitting mechanisms inhibit the rotation of two members of one of the planetary gear and one member of the other planetary gear set when the selectively engageable interconnection is active.
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Hebbale Kumaraswamy V.
Raghavan Sekhar
Usoro Patrick Benedict
Estremsky Sherry
General Motors Corporation
Grove George A.
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