Six shift-element step-ratio automatic transmission
US9103414B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2014 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | May 20, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2046
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A nine speed transmission having six shift-elements. An input being selectively coupled with an interior-gear capable of being braked and an end-gear from a first gearing-arrangement and coupled with an interior-gear of a fourth gearing-arrangement. An opposite end-gear from the first gearing-arrangement being fixedly coupled with an interior-gear of a second gearing-arrangement. An end-gear of a third gearing-arrangement being a ground or capable of being braked. An output being coupled with an interior-gear from the third gearing arrangement and an end-gear from the fourth gearing-arrangement. An end-gear of the second gearing-arrangement being a ground and the opposite end-gear being coupled with opposite end-gears from the third and fourth gearing-arrangements. The opposite end-gear of the second gearing-arrangement also being selectively coupled to the interior-gear of the first gearing-arrangement. Coupled, as used here, may mean selectively or fixedly coupled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.