Integrated optical system for investigation and diagnostics of abnormal combustion in an automotive engine

Dariusz Piernikarski

doi:10.1117/12.581777

8 September 2004 Integrated optical system for investigation and diagnostics of abnormal combustion in an automotive engine

Dariusz Piernikarski

Author Affiliations +

Proceedings Volume 5576, Lightguides and their Applications II; (2004) https://doi.org/10.1117/12.581777
Event: Lightguides and their Applications II, 2003, Krasnobrod, Poland

Abstract

The paper presents a research project oriented towards development of existing measurement methods which use optical sensors for the research and diagnostics of the combustion process in the internal-combustion automotive enigne. Experiments assume usage of photometric techniques and in particular spectrophotometry of the flames existing in the combustion chamber. Gathered results will enable expanding knowledge about processes taking place during combustion of air-fuel mixture and accompanying phenomena (i.e. knock, misfires). The work is also aimed at designing a diagnostic system which will enable an on-line identification of unfavorable phenomena like knocking combustion or misfires (lack of combustion). Extracted synthetic quality indexes will be used in the improvement of combustion process and as a feedback signals in the engine control algorithms. Research is made on the typical automotive engine equipped with an optical sensor located in the engine head and having direct access into the combustion chamber. The sensor enables on-line transmission of the optical signal during the combustion through the bundle of optical waveguides and two parallel filtering paths. Then optical signal was filtered with set of interference filters. The paper is illustrated with some results obtained during preliminary experiments.

Citation Download Citation

Dariusz Piernikarski "Integrated optical system for investigation and diagnostics of abnormal combustion in an automotive engine", Proc. SPIE 5576, Lightguides and their Applications II, (8 September 2004); https://doi.org/10.1117/12.581777

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