Geartrain for a five-speed automatic transmission

Details Geartrain for a five-speed automatic transmission Geartrain for a five-speed automatic transmission

1998-06-25

1999-07-27

Wright, Dirk

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

475280, 475271, F16H 344

Patent

active

059281022

ABSTRACT:
A geartrain for a five-speed automatic transmission includes first and second compound planetary gear units. The first compound planetary gear unit includes first and second simple planetary gearsets having first, second, third and fourth operating elements. The first operating element acts as an input element. The second compound planetary gear unit includes third and fourth simple planetary gearsets having fifth, sixth, seventh and eighth operating elements. The fifth operating element acts as an output element and the sixth and eighth operating elements are variably connected to the first and fourth operating elements, respectively. The seventh operating element is fixedly connected to the third operating element. Clutches are provided for variably connecting the sixth and eighth operating elements to the first and fourth operating elements, respectively. Brakes are provided for selectively connecting the second and eighth operating elements to a transmission housing.

REFERENCES:
patent: 4027552 (1977-06-01), Murakami et al.
patent: 4088043 (1978-05-01), Johnson et al.
patent: 4143562 (1979-03-01), Murakami et al.
patent: 4531428 (1985-07-01), Windish
patent: 4683776 (1987-08-01), Klemen
patent: 4744267 (1988-05-01), Lepelletier
patent: 5246409 (1993-09-01), Flemming et al.

Affiliated with

Also associated with

Rating

Geartrain for a five-speed automatic transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Geartrain for a five-speed automatic transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geartrain for a five-speed automatic transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-872179