Torque sensing system having torque sensor, method for determining an amount of torque, and steering system
US8347739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2010 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Jul 21, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/221
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A torque sensing system, a torque sensor, a method for determining an amount of torque, and a steering system are provided. The method includes generating a first output signal utilizing a first plurality of piezo-electric transducers disposed between a first plurality of tooth portions of a first hub portion and a second plurality of tooth portions of a second hub portion when the first hub portion is rotated in a first direction relative to the second hub portion. The transducers are electrically coupled in series with one another. The method further includes filtering the first output signal to obtain a first filtered signal and amplifying the first filtered signal to obtain a first amplified signal. The method further includes determining a first torque value indicative of a first amount of torque applied to an input shaft based on the first amplified signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.