- 专利标题: Motor state counting
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申请号: US11413276申请日: 2006-04-28
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公开(公告)号: US20060261807A1公开(公告)日: 2006-11-23
- 发明人: William Morita , Raymond Liu , Estella Chung
- 申请人: William Morita , Raymond Liu , Estella Chung
- 专利权人: HR Textron, Inc.
- 当前专利权人: HR Textron, Inc.
- 主分类号: G01R33/06
- IPC分类号: G01R33/06
摘要:
Systems, methods, and computer-readable media are disclosed for error-compensated counting of Hall states for motor position feedback and/or commutation. An indicated Hall state is detected by digital Hall state sensors and a duration of the Hall state is compared to a specified time period. When the duration exceeds the specified time period, the indicated Hall state is compared to one or more valid Hall states and a position counter is changed for valid states. When the indicated Hall state is invalid, the position counter is not changed. The Hall state sensors may be connected to logic means and may detect the position of a rotor of a permanent magnet motor relative to a stator. When noise induces a change in an indicated Hall state, corresponding noise-induced effects on the position counter may be may be removed through error-compensated counting.
公开/授权文献
- US07230422B2 Motor state counting 公开/授权日:2007-06-12
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