Torque measurement within a powertrain
US7770471B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2007 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Feb 22, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L3/1428
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided for measuring torque in a shaft of a drive line including a disc coupling component such as a flexplate 1 or a flanged coupling 13, as well as a drive coupling system for carrying out the method. The disc coupling component 1, 13 is connected between a drive input 4 and a drive output so that all torque transmitted between the input and output passes through said component. The disc coupling component 1, 13 has a radially extending portion, which may include a plurality of spokes 7, to which is attached a SAW based strain sensor which communicates with a stationary coupler 3 fastened to an engine block 5 for wireless transmission of data from the sensor, the strain sensor measuring the strain in the disc coupling component 1, 13 from which the torque carried in the input shaft 4 may be calculated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.