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Conductometric Sensor for Soot Mass Flow Detection in Exhausts of Internal Combustion Engines
Soot sensors are required for on-board diagnostics (OBD) of automotive diesel particulate filters (DPF) to detect filter failures. Widely used for this purpose are conductometric sensors, measuring an electrical current or resistance between two electrodes. Soot particles deposit on the electrodes,...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4701308/ https://www.ncbi.nlm.nih.gov/pubmed/26580621 http://dx.doi.org/10.3390/s151128796 |
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author | Feulner, Markus Hagen, Gunter Müller, Andreas Schott, Andreas Zöllner, Christian Brüggemann, Dieter Moos, Ralf |
author_facet | Feulner, Markus Hagen, Gunter Müller, Andreas Schott, Andreas Zöllner, Christian Brüggemann, Dieter Moos, Ralf |
author_sort | Feulner, Markus |
collection | PubMed |
description | Soot sensors are required for on-board diagnostics (OBD) of automotive diesel particulate filters (DPF) to detect filter failures. Widely used for this purpose are conductometric sensors, measuring an electrical current or resistance between two electrodes. Soot particles deposit on the electrodes, which leads to an increase in current or decrease in resistance. If installed upstream of a DPF, the “engine-out” soot emissions can also be determined directly by soot sensors. Sensors were characterized in diesel engine real exhausts under varying operation conditions and with two different kinds of diesel fuel. The sensor signal was correlated to the actual soot mass and particle number, measured with an SMPS. Sensor data and soot analytics (SMPS) agreed very well, an impressing linear correlation in a double logarithmic representation was found. This behavior was even independent of the used engine settings or of the biodiesel content. |
format | Online Article Text |
id | pubmed-4701308 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-47013082016-01-19 Conductometric Sensor for Soot Mass Flow Detection in Exhausts of Internal Combustion Engines Feulner, Markus Hagen, Gunter Müller, Andreas Schott, Andreas Zöllner, Christian Brüggemann, Dieter Moos, Ralf Sensors (Basel) Article Soot sensors are required for on-board diagnostics (OBD) of automotive diesel particulate filters (DPF) to detect filter failures. Widely used for this purpose are conductometric sensors, measuring an electrical current or resistance between two electrodes. Soot particles deposit on the electrodes, which leads to an increase in current or decrease in resistance. If installed upstream of a DPF, the “engine-out” soot emissions can also be determined directly by soot sensors. Sensors were characterized in diesel engine real exhausts under varying operation conditions and with two different kinds of diesel fuel. The sensor signal was correlated to the actual soot mass and particle number, measured with an SMPS. Sensor data and soot analytics (SMPS) agreed very well, an impressing linear correlation in a double logarithmic representation was found. This behavior was even independent of the used engine settings or of the biodiesel content. MDPI 2015-11-13 /pmc/articles/PMC4701308/ /pubmed/26580621 http://dx.doi.org/10.3390/s151128796 Text en © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Feulner, Markus Hagen, Gunter Müller, Andreas Schott, Andreas Zöllner, Christian Brüggemann, Dieter Moos, Ralf Conductometric Sensor for Soot Mass Flow Detection in Exhausts of Internal Combustion Engines |
title | Conductometric Sensor for Soot Mass Flow Detection in Exhausts of Internal Combustion Engines |
title_full | Conductometric Sensor for Soot Mass Flow Detection in Exhausts of Internal Combustion Engines |
title_fullStr | Conductometric Sensor for Soot Mass Flow Detection in Exhausts of Internal Combustion Engines |
title_full_unstemmed | Conductometric Sensor for Soot Mass Flow Detection in Exhausts of Internal Combustion Engines |
title_short | Conductometric Sensor for Soot Mass Flow Detection in Exhausts of Internal Combustion Engines |
title_sort | conductometric sensor for soot mass flow detection in exhausts of internal combustion engines |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4701308/ https://www.ncbi.nlm.nih.gov/pubmed/26580621 http://dx.doi.org/10.3390/s151128796 |
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