Electromagnetic actuator and method for controlling an electromagnetic actuator
US12087533B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2022 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Oct 20, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1866
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for controlling an electromagnetic actuator including: applying a first control strategy in which first and third switches are kept in a closed state, whereas a second switch is switched between its open and closed states; detecting an occurrence of overconsumption of current in a coil of the actuator, by detecting that voltage measured on a control bus has exceeded a predefined voltage limit or by detecting that a duty cycle of the second switch has dropped below a threshold value; and in response, applying a second control strategy, instead of the first control strategy, in which the third switch is periodically opened in order to decrease the current supplied to the coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.