Solenoid plunger movement detection system
US11335492B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2020 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | May 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1866
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solenoid plunger movement detection system and method can include: detecting current supplied to a solenoid with a current sensor; converting the current supplied to the solenoid into a digital signal with a counter coupled to a first comparator; detecting a peak within the digital signal with a peak detector; comparing the peak to the digital signal with a second comparator coupled to the peak detector; measuring a dip from the peak and measuring a trough with the second comparator; generating a fault when the peak and the trough indicate a smooth current ramp to the solenoid; receiving configurable parameters for processing the digital signal with a signal processor; and providing configurable parameters to the counter, the second comparator, the signal processor, or a combination thereof with an interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.