Method for real-time estimation of engine combustion parameters from vibratory signals
US7747380B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2007 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Jun 18, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M15/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method having application to combustion control of an internal-combustion engine for real-time estimation of engine combustion parameters from vibratory signals. A vibratory signal representative of the engine vibrations is continuously acquired as a function of the crank angle, from a vibration detector. Real-time filtering of this vibratory signal and real-time estimation of the Fourier decomposition coefficients for the acquired vibratory signal is carried out by inverting the dynamics of the filter which is used. Finally, real-time estimation of combustion parameters allowing the combustion to be qualified is carried out from these coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.