Powertrain with a six speed planetary transmission

Details Powertrain with a six speed planetary transmission Powertrain with a six speed planetary transmission

1999-11-22

2000-12-26

Estremsky, Sherry

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

475284, 475288, 475325, F16H 366

Patent

active

061650978

ABSTRACT:
A powertain includes an engine and torque converter arranged to provide input power to a six speed planetary transmission. The transmission includes a simple planetary gear set and a compound planetary gear set that are selectively interconnected by a pair of fluid-operated clutch mechanisms. Two other selectively engageable fluid-operated clutch mechanisms and three selectively engageable fluid-operated brake mechanisms are provided to control the power input and reaction within the planetary transmission. The clutch mechanisms and the brake mechanisms are engaged in combinations of three to provide six forward speed ratios and at least one reverse speed ratio between a transmission input shaft and a transmission output shaft.

REFERENCES:
patent: 3946623 (1976-03-01), Murakami et al.
patent: 4638688 (1987-01-01), Hiraiwa
patent: 5141477 (1992-08-01), Oshidari
patent: 5567201 (1996-10-01), Ross
patent: 5830102 (1998-11-01), Coffey
patent: 5951432 (1999-09-01), Wehking et al.

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