A methodology for combustion detection in diesel engines through in-cylinder pressure derivative signal
| Autor: | Vicente Bermúdez, José Manuel Luján, Ali Abbad, Carlos Guardiola |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Engineering
business.industry Piezoelectric sensor Mechanical Engineering Aerospace Engineering Mechanical engineering Diesel engine Combustion Computer Science Applications law.invention Chamber pressure Diesel fuel Pressure measurement Internal combustion engine Control and Systems Engineering law Signal Processing Electronic engineering business Civil and Structural Engineering Turbocharger |
| Zdroj: | Mechanical Systems and Signal Processing. 24:2261-2275 |
| ISSN: | 0888-3270 |
| DOI: | 10.1016/j.ymssp.2009.12.012 |
| Popis: | In-cylinder pressure measurement has historically been used for off-line combustion diagnosis, but online application for real-time combustion control has become of great interest. This work considers low computing-cost methods for analysing the instant variation of the chamber pressure, directly obtained from the electric signal provided by a traditional piezoelectric sensor. Presented methods are based on the detection of sudden changes in the chamber pressure, which are amplified by the pressure derivative, and which are due to thermodynamic phenomena within the cylinder. Signal analysis tools both in time and in time-frequency domains are used for detecting the start of combustion, the end of combustion and the heat release peak. Results are compared with classical thermodynamic analysis and validated in several turbocharged diesel engines. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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