Motor speed sensor assembly for detecting rotational direction and speed
US7872470B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2007 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Nov 17, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/531
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A drive assembly for a vehicle door is provided. The drive assembly includes a motor having a driving member. The drive assembly further includes a housing having a shaft rotatably received therein. The drive assembly further includes an input member being rotatably received upon the shaft. The input member is operatively associated with the driving member. The drive assembly further includes a rotor fixedly secured to the shaft. The drive assembly further includes first and second Hall effect sensor modules mounted to the housing in a facing spaced relationship with respect to the plurality of teeth of the rotor that generate first and second signals, respectively. The first and second signals have a quadrature relationship with respect to one another and indicate a rotational direction of the rotor when the plurality of teeth are rotating past the first and second Hall effect sensor modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.