Method for reducing performance variation of an electromagnetically-activated actuator
US9435281B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2015 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Apr 1, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/389
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for reducing performance variation of an electromagnetically-activated actuator having an electrical coil and an armature includes providing actuator activation signals to the electromagnetically-activated actuator. The signals include current driven through the electrical coil in a first direction. The method detects unacceptable response variations in the armature to equivalent actuator activation signals. And, subsequent to detection of unacceptable response variations in the armature, current is driven through the electrical coil in a direction opposite that of the first direction following actuator activation signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.