Method of operating an electromagnetic actuator with consideration of the armature motion
US6041667A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1998 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Jul 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/1638
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of operating an electromagnetic actuator for actuating a setting member wherein the actuator includes at least one electromagnet supplied with current by a control device, and an armature that is operatively connected with the setting member to be actuated and which can be brought out of a first set position, counter to a force of a restoring spring, into a second set position, in which the armature is in contact with the pole face of the electromagnet, when the electromagnet is supplied with current. The change in the setting force of the restoring spring is detected, at least during part of the armature motion, and the respective position of the armature and/or its moving speed is or are derived from this. The derived value is used to check and/or influence the actuation of the electromagnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.