发明名称 |
POSITION RECOGNITION IN AN ELECTROMAGNETIC ACTUATOR WITHOUT SENSORS |
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. |
申请公布号 |
EP1872378(A1) |
申请公布日期 |
2008.01.02 |
申请号 |
EP20060742532 |
申请日期 |
2006.04.04 |
申请人 |
ZF FRIEDRICHSHAFEN AKTIENGESELLSCHAFT |
发明人 |
KELLER, REINER;HEINRICH, KAI;PANTKE, MICHAEL |
分类号 |
H01F7/18;F01L9/04 |
主分类号 |
H01F7/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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