System for controlling electromagnetically actuated valve
US6427971B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1999 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Dec 17, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7759
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electromagnetically actuated valve includes generally an electromagnet, an armature member driven by the electromagnet and a valve driven by the armature member. The armature member and the valve are movable together to constitute a movable unit. For controlling the electromagnetically actuated valve, there is provided a control system which comprises a position detecting unit that detects a position of the movable unit; a speed detecting unit that detects a moving speed of the movable unit; a target speed deriving section that derives a target speed of the movable unit by processing the position of the movable unit; a comparator section that compares the speed detected by the speed detecting unit with the target speed derived by the target speed deriving section; and a control section that, in accordance with the result of the comparison by the comparator section, controls the electromagnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.