Process for determining the operating parameters of an injection device
US7269500B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2006 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Mar 24, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/403
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A process for determining the operating parameters of an injection device of a combustion engine includes the steps of: (a) selecting an injector to test; (b) calculating a mean velocity associated with a preceding injector arranged before the injector to test; c) applying to the injector to test an injection control signal including at least one test pulse having an adjustable parameter; (d) calculating a mean velocity associated with the injector to test; (e) calculating a difference between the mean velocity calculated in step d) and the mean velocity calculated in step b); (f) repeating steps b) to d) for at least another engine cycle, each time varying the parameter of the test pulse; (g) determining a value of the parameter of the test pulse for which the mean velocity difference exceeds a predetermined threshold; and storing the parameter value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.