Method of controlling clutches in a multi-function torque converter
US9285030B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2014 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Jul 17, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2045/0278
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method of controlling a multi-function torque converter including a cover, an impeller shell, a turbine shell, a first pressure chamber at least partially formed by the turbine shell and the cover; a second pressure chamber at least partially formed by the impeller and turbine shells, and a third pressure chamber at least partially formed by the impeller shell and the cover, an impeller clutch including a portion of the impeller shell, and a turbine clutch including a portion of the turbine shell, the method including: pressurizing the first pressure chamber to substantially a first fluid pressure level or to a second fluid pressure level greater than the first level; pressurizing the second pressure chamber to a third fluid pressure level greater than the first and second levels; passively draining the third pressure chamber to be substantially at the first level; and connecting the impeller shell to the cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.