Powertrain for 5-speed automatic transmissions

Details Powertrain for 5-speed automatic transmissions Powertrain for 5-speed automatic transmissions

1998-05-19

2000-03-21

Ta, Khoi Q.

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

475280, 475279, 475286, F16H 344

Patent

active

060396709

ABSTRACT:
Disclosed is a powertrain used for a 5-speed automatic transmission. The powertrain includes a first compound planetary gearset and a second compound planetary gearset. The first compound planetary gearset comprises first and second simple planetary gearsets having first, second, third and fourth operating elements, while the second compound planetary gear unit comprises third and fourth simple planetary gearsets having fifth, sixth, seventh and eighth operating elements. The fifth and sixth operating elements are variably connected to the second and first operating elements, respectively, and said seventh operating element is fixedly connected to the fourth operating element. Clutches are disposed to variably connect the fifth and sixth operating elements to the second and first operating elements, respectively. Brakes are interposed between the fourth and eighth operating elements and a transmission housing.

REFERENCES:
patent: 5885184 (1999-03-01), Park
patent: 5928102 (1999-07-01), Park
patent: 5944629 (1999-08-01), Park

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