发明授权
- 专利标题: Method of regulating the armature impact speed in an electromagnetic actuator by estimating the required energy by extrapolation
- 专利标题(中): 通过外推估计所需能量来调节电磁致动器中的电枢冲击速度的方法
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申请号: US261461申请日: 1999-02-24
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公开(公告)号: US6141201A公开(公告)日: 2000-10-31
- 发明人: Gunter Schmitz
- 申请人: Gunter Schmitz
- 申请人地址: DEX Aachen
- 专利权人: FEV Motorentechnik GmbH & Co. Kommanditgesellschaft
- 当前专利权人: FEV Motorentechnik GmbH & Co. Kommanditgesellschaft
- 当前专利权人地址: DEX Aachen
- 优先权: DEX19807875 19980225
- 主分类号: H01F7/16
- IPC分类号: H01F7/16 ; F01L9/04 ; F02D13/02 ; F02D41/20 ; F16K31/06 ; G05F1/56 ; H01F7/123 ; H01F7/18 ; H01H47/04
摘要:
A method of regulating an electromagnetic actuator is disclosed. The electromagnetic actuator has an electromagnet; an armature movable, in a switching step, by a controlled current supply to said magnet coil, from a first armature position to a second, pole face-engaging armature position against a force of a resetting spring. The method includes the following steps for regulating the current flow through the magnet coil to set a low velocity of the armature as it arrives at the pole face: during the switching step, detecting the energy amount in the electromagnetic actuator by detecting a changing armature position and/or a changing armature velocity; estimating by extrapolation the expected energy amount upon arrival of the armature on the pole face; and forming a coarse correcting value by comparing the estimation to be extrapolated with a predetermined target value selected with an aid of the total energy stored in the system in the second armature position.
公开/授权文献
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