发明公开
- 专利标题: TURNING DEVICE POSITION SENSING SYSTEM AND METHOD
- 专利标题(中): 系统和方法确定轮作系统的位置
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申请号: EP07760415.5申请日: 2007-04-10
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公开(公告)号: EP2005118A2公开(公告)日: 2008-12-24
- 发明人: SANTOS, Alfred, John , LACROIX, Mark, E. , DENNY, Wayne, V.
- 申请人: Timken US Corporation
- 申请人地址: 59 Field Street Torrington, CT 06790 US
- 专利权人: Timken US Corporation
- 当前专利权人: Timken US Corporation
- 当前专利权人地址: 59 Field Street Torrington, CT 06790 US
- 代理机构: Prüfer & Partner GbR European Patent Attorneys
- 优先权: US791359P 20060410; US805527P 20060622
- 国际公布: WO2007121192 20071025
- 主分类号: G01D5/14
- IPC分类号: G01D5/14
摘要:
A system for determining an absolute position of a motor. The system includes first and second multi-polar magnetic rings, first and second processing units, and at least one external sensor. The first multi-polar magnetic ring is concentrically positioned around the motor, and has a plurality of pole pairs. The second multi-polar magnetic ring is concentrically positioned around the first multi-polar magnetic ring, and has at least one pole pair. The first processing unit is positioned near the first multi-polar magnetic ring to determine an angular position over one of the pole pairs of the first multi-polar magnetic ring. The sensor is positioned external to the processing unit and over the second multi-polar magnetic ring to indicate a state of the pole pair of the second multi-polar magnetic ring. The second processing unit generates an absolute position of the motor based on the angular position and the state.
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