发明授权
- 专利标题： Method and apparatus for determining the rotor position of an electric motor from the electric current and the angular acceleration
- 专利标题（中）： 用于根据电流和角加速度确定电动机的转子位置的方法和装置
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申请号： US10598618申请日： 2005-03-07
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公开(公告)号： US07482802B2公开(公告)日： 2009-01-27
- 发明人: Roland Finkler , Hans-Georg Köpken
- 申请人： Roland Finkler , Hans-Georg Köpken
- 申请人地址： DE München
- 专利权人： Siemens Aktiengesellschaft
- 当前专利权人： Siemens Aktiengesellschaft
- 当前专利权人地址： DE München
- 代理商 Henry M. Feiereisen; Ursula B. Day
- 优先权： DE102004012805 20040316
- 国际申请： PCT/EP2005/051017 WO 20050307
- 国际公布： WO2005/088826 WO 20050922
- 主分类号： G01B7/30
- IPC分类号： G01B7/30
摘要：
The invention relates to a method for determining the angular position (theta) of a rotor (2) pertaining to an electric motor (1) and comprising a number of pairs of poles. Said method consists of the following steps: a pulse pattern (PM1,PM2,PM3) with a pulse duration (T) flows through at least one stator coil (7) of the electric motor (1), such that the rotor (2) does not rotate by more than 90 DEG, divided between the number of pairs of poles, during the pulse duration (T); the angular acceleration (alpha) of the rotor (2), caused by the pulse pattern flowing through the at least one stator coil, (7) is detected; and the angular position (theta) of the rotor (2) is determined by means of the correlation between the flow through the stator coil (7) and the angular acceleration (alpha) of the rotor (2).
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