Method for determining the injection duration in an internal combustion engine
US7152575B2 · kind B2 · utility
9Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2005 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Oct 7, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for correcting the injection duration of injections is based on pressure fluctuations of preceding injections. The injection duration is determined on the basis of a mapping value and of a correction value. The mapping value is read out from a mapping according to the fuel pressure and according to the amount of fuel to be injected. The correction value is calculated according to the time interval between the subsequent injection and at least one latter injection. This enables a precise determination of the injection duration and thus a precise metering of the desired amount of fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.