发明名称 |
Electromagnetic actuator controller |
摘要 |
A controller for an electromagnetic actuator comprises a pair of spring acting in opposite directions, and an armature coupled to a mechanical element. The armature is connected to the springs and held in a neutral position given by the springs when the actuator is not activated. The actuator includes a pair of electromagnets for driving the armature between two end positions. The controller includes voltage application means for applying voltage to an electromagnet providing one end position for a first predetermined period so as to attract the armature to the end position. The controller also includes a peak current detector for detecting the peak of current flowing through the electromagnet in the first predetermined period. In accordance with the peak value, a decision means decides the application period of voltage that is to be applied to the electromagnet after the first application period has elapsed. Thus, the armature can make a stable seating at a controlled speed without generating substantial noise.
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申请公布号 |
US6690563(B2) |
申请公布日期 |
2004.02.10 |
申请号 |
US20020052724 |
申请日期 |
2002.01.18 |
申请人 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
OZAWA HIDETAKA;ABE KENJI;KOUNO YOSHITOMO;NAKAMURA MINORU;YAMAKI TOSHIHIRO |
分类号 |
F01L9/04;F01L13/00;F02D13/02;F02D41/20;F16K31/06;H01F7/16;H01F7/18;(IPC1-7):H01H9/00 |
主分类号 |
F01L9/04 |
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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