Automatic transmission having three planetary gear sets

Details Automatic transmission having three planetary gear sets Automatic transmission having three planetary gear sets

1994-02-24

1995-10-24

Wright, Dirk

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

475280, F16H 4708

Patent

active

054605792

ABSTRACT:
A multispeed automatic transmission for motor vehicles has three planetary gear sets arranged in series, each having a ring gear, a planet gear support with planet gears, and a sun gear. Externally-controlled clutches and brakes are arranged to provide six forward and one reverse gear stages. To provide improved riding comfort and fuel economy, only five shifting components are required, and the construction of the transmission permits an especially short and economical structure and especially favorable planet gear speeds.

REFERENCES:
patent: 3951010 (1976-04-01), Polak
patent: 3956946 (1976-05-01), Murakami et al.
patent: 5277673 (1994-01-01), Nakayama et al.
Korean periodical SAE, vol. 1, 1991, p. 285.

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