发明授权
US07804674B2 Position recognition in an electromagnetic actuator without sensors
有权
无传感器的电磁执行器中的位置识别
- 专利标题: Position recognition in an electromagnetic actuator without sensors
- 专利标题(中): 无传感器的电磁执行器中的位置识别
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申请号: US11911588申请日: 2006-04-04
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公开(公告)号: US07804674B2公开(公告)日: 2010-09-28
- 发明人: Reiner Keller , Kai Heinrich , Michael Pantke
- 申请人: Reiner Keller , Kai Heinrich , Michael Pantke
- 申请人地址: DE Friedrichshafen
- 专利权人: ZF Friedrichshafen AG
- 当前专利权人: ZF Friedrichshafen AG
- 当前专利权人地址: DE Friedrichshafen
- 代理机构: Davis & Bujold, P.L.L.C.
- 优先权: DE102005018012 20050418
- 国际申请: PCT/EP2006/003040 WO 20060404
- 国际公布: WO2006/111268 WO 20061026
- 主分类号: H01H47/00
- IPC分类号: H01H47/00
摘要:
An electromagnetic actuator and a method for controlling the actuator comprising at least one armature (3) and two coils (1, 2). The voltage gradient at the two coils (1, 2) is measured during a sudden increase in voltage. From this measured data, a subtractor (16) computes a third voltage gradient (25) from which a logic unit (17) determines the position of the armature (3) without the use of an additional sensor.
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