Sensor system for ascertaining a torque and for index detection
US8490499B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 2010 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Jul 15, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D15/0245
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A torque sensor system having an index function and ascertaining a torque between an input shaft and an output shaft connected to each other via a torsion bar, includes: a magnetic unit having a magnetic pole wheel for generating a magnetic field, the magnetic unit being rigidly connected to one of the two shafts; a flux ring unit having a flux ring system for converting and conducting the magnetic flux generated by the magnetic unit, the flux ring unit being rigidly connected to the other shaft; and a sensor unit having at least one first magnetic field-sensitive sensor element for sensing changes in the magnetic flux through the flux ring system, the sensor unit being mounted in a stationary manner relative to the flux ring unit. The index function is implemented with the aid of an index magnet and a further magnetic field-sensitive sensor element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.