Planetary gear train of automatic transmission for vehicles
US9709132B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2014 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Mar 8, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2046
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A planetary gear train may include an input shaft, an output shaft, first and second planetary gear sets each having three rotation elements, a first rotation shaft directly connected to one rotation element of the second planetary gear set and selectively connected to the input shaft, a second rotation shaft directly connected to one rotation element of the first planetary gear set and another rotation element of the second planetary gear set, and directly connected to the output shaft, a third rotation shaft directly connected to another rotation element of the first planetary gear set and the remaining rotation element of the second planetary gear set, and selectively connected to the input shaft and/or selectively connected to a transmission housing, and a fourth rotation shaft directly connected to the remaining rotation element of the first planetary gear set, and selectively connected to the input shaft through two paths and/or selectively connected to the transmission housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.