Method for correcting a measured cylinder pressure of an internal combustion engine
US7543484B2 · kind B2 · utility
2Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 11, 2005 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Sep 29, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L23/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for correcting a measured cylinder pressure of an internal combustion engine, in which a cylinder pressure sensor is connected to a combustion chamber via a duct, disturbing portions resulting from whistle oscillations being suppressed by determining an oscillation frequency of a gas oscillation caused in the duct during a power stroke and filtering the measurement values of the cylinder pressure sensor using a band-stop filter having the previously determined oscillation frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.