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Six wheel drive (6WD) - 6 speed automatic gearbox - 6 speed manual transmissions -  Compact front wheel drive 6 speed transaxle - 6 Speed get rag transaxle - Vehicle automatic transmission for 6 speed power train - 6 wheeled motor vehicle - 6 wheel armored vehicle

Six-speed power train of an automatic transmission for a vehicle

The powertrain includes an arrangement of three single planetary gearsets of which operational elements are wisely interconnected to one another via two clutches and to the transmission via three brakes so as to form six forward speeds and one reverse speed, to be adaptable to a rear wheel drive vehicle.

With 160 horsepower, Milan's Duratec 23 I-4 is lively as well as fuel efficient.

1. A six-speed powertrain of an automatic transmission for a rear wheel drive vehicle, comprising: a first planetary gearset of a single pinion planetary gearset having a first sun gear, a first planet carrier, and a first ring gear; a second planetary gearset of a single pinion planetary gearset having a second sun gear, a second planet carrier, and a second ring gear; and a third planetary gearset of a single pinion planetary gearset having a third sun gear, a third planet carrier, and a third ring gear, wherein: the first ring gear and the second planet carrier, the second ring gear and the third planet carrier, and the third ring gear and the first planet carrier are fixedly interconnected respectively; the second sun gear is fixedly connected to an input shaft so as to always act as an input element; the third sun gear is variably connected to the input shaft and the transmission case interposing a first clutch and a third brake respectively; the second planet carrier is variably connected to the input shaft interposing a second clutch; the third planet carrier is variably connected to the transmission case interposing a second brake and a one-way clutch; the first planet carrier is connected to an output gear; the first sun gear is variably connected to the transmission housing interposing a first brake.

2. The powertrain of claim 1, wherein: the first and second clutches and the second and third brakes are disposed to the front in the transmission case; and the first brake is disposed to the rear in the transmission case.

3. The powertrain of claim 1, wherein the one-way clutch and the second brake are connected to the third planet carrier in parallel.

4. The powertrain of claim 1, wherein the output gear is disposed opposite to the input shaft with respect to the first, second, and third planetary gearsets.

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Six wheel drive (6WD) - 6 speed automatic gearbox - 6 speed manual transmissions -  Compact front wheel drive 6 speed transaxle - 6 Speed get rag transaxle - Vehicle automatic transmission for 6 speed power train - 6 wheeled motor vehicle - 6 wheel armored vehicle

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