Direct injection solenoid injector opening time detection
US9453488B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2014 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | May 23, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/2058
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A direct injection, solenoid fuel injector includes at least one current sensing function capable of detecting a current draw of the solenoid and a controller function. The controller is capable of determining a fully open time of the direct fuel injector solenoid based on the application of a slope inflection filter and a slope discrimination filter to a derivative of the current draw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.