Planetary gear train of an automatic transmission for a vehicle
US10544853B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 25, 2018 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Aug 22, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2046
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A planetary gear train of an automatic transmission includes input and output shafts, first to fifth planetary gear sets respectively having first to third, fourth to sixth, seventh to ninth, tenth to twelfth, and thirteenth to fifteenth elements. The gear train has a first shaft fixedly connected with the first element and the input shaft, a second shaft fixedly connected with the ninth and thirteenth elements and the input shaft, a third shaft fixedly connected with the eighth element and the input shaft, a fourth shaft fixedly connected with the fourteenth element and the output shaft, a fifth shaft fixedly connected with the fifth, eleventh, and fifteenth elements, and a sixth shaft fixedly connected with the twelfth element. The gear train has a plurality of shafts, each of which is selectively connected to a housing and fixedly connected to an element of the first, second, third, and fourth planetary gear sets that is not fixedly connected with any of the first to sixth shafts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.