Control unit for a torque converter with a lockup mechanism
US6341679B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2000 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | Jul 17, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/725
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a control unit for a torque converter with a lockup mechanism, the surface temperature of a clutch friction material in a lockup clutch is calculated with a surface temperature calculation unit B3, the surface temperature of the clutch friction material so calculated is compared with a predetermined first allowable temperature with a surface temperature comparison unit B4, and when the surface temperature of the clutch friction material is judged to have reached or exceeded the first allowable temperature, a friction material temperature reduction operating unit B5 is started to operate to reduce the surface temperature of the clutch friction material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.