Automatic transmission
US9194471B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2012 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Jan 5, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2035
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An automatic transmission includes a continuously variable transmission mechanism, a planetary gear mechanism, a clutch causing an input shaft and a first rotation element to be engaged, a coupling member which transmits rotation of the input shaft to the first rotation element, and a brake which locks rotation of a third rotation element. The input shaft is coupled to an input unit. An output shaft is coupled to a second rotation element An output unit is coupled to a fourth rotation element. The constant speed ratio of the coupling member is so set that a rotation direction of the output shaft relative to the fourth rotation element changes from a forward direction to a reverse direction according to a change in a speed ratio of the continuously variable transmission mechanism when the clutch is engaged and the brake is released.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.