Automatic calibration of the torque transfer touch point in an electrically actuated clutch in a hybrid vehicle
US8738256B2 · kind B2 · utility
18Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2008 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Jul 21, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2500/50245
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method of determining a torque transfer touch point of a clutch within a drive train includes applying a predetermined amount of current to an electric motor such that the electric motor will apply a torque to at least a portion of a clutch. The predetermined amount of current will not rotate a shaft of the motor when the clutch is at least partially engaged. The method also includes initiating disengagement of the clutch, detecting movement of at least a portion of the motor, and recording a clutch parameter that is generally coincident with the detecting movement of a least a portion of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.