Method of learning an initial capacity point of a clutch in a dual clutch transmission
US8443688B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2012 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Jul 26, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19251
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method of learning an initial capacity point of a clutch in a dual clutch transmission includes identifying when the dual clutch transmission is operating in a steady state gear condition with a first clutch continuously transmitting torque to a first shaft. When the dual clutch transmission is operating in a steady state gear condition, a second clutch is sequentially positioned in each of a plurality of application positions (Pn, Pn+1, Pn+2, . . . , Pn+i). The second clutch is configured to transmit torque to a second shaft. The second shaft is positioned in a geared state in each of the plurality of application positions. The first application position (Pn+i) in the sequence of application positions in which the second shaft is not successfully positioned in the geared state is defined as the initial capacity point of the second clutch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.