Combustion Stability Control Based on Cylinder Pressure for High Efficiency Gasoline Engines

Minimizing fuel consumption of passenger car vehicles can be achieved thanks to hybridization of the powertrain associated with innovative engine technologies. To feed the new high compression ratio combustion systems, air system cutting-edge technologies are used to manage air and EGR (Exhaust Gas...

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Main Authors: Maxime Jean, Pascal Granier, Thomas Leroy
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/7/2530
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author Maxime Jean
Pascal Granier
Thomas Leroy
author_facet Maxime Jean
Pascal Granier
Thomas Leroy
author_sort Maxime Jean
collection DOAJ
description Minimizing fuel consumption of passenger car vehicles can be achieved thanks to hybridization of the powertrain associated with innovative engine technologies. To feed the new high compression ratio combustion systems, air system cutting-edge technologies are used to manage air and EGR (Exhaust Gas Recirculation) quantities. Increasing EGR allows us to improve engine consumption in the high efficiency area, but it comes at the cost of a loss of stability. It is then of primary importance to be able to manage the engine near the stability limit to minimize fuel consumption. So far, the stability limit is managed in open-loop thanks to conservative calibration of the EGR quantity, implying efficiency losses. This paper addresses the combustion stability feedback control using in-cylinder pressure sensors. From this information, an indicator of stability is proposed, offering a more robust behavior in transient situations than state-of-the-art indicators. This indicator is then used to feed a controller that adapts the open-loop EGR target to go towards the stability limit. Experimental results obtained on a high efficiency gasoline engine stress the relevance of the approach in minimizing fuel consumption under real driving conditions.
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spelling doaj.art-25bb48105bf249c29c7050a3110362d62023-11-30T23:11:26ZengMDPI AGEnergies1996-10732022-03-01157253010.3390/en15072530Combustion Stability Control Based on Cylinder Pressure for High Efficiency Gasoline EnginesMaxime Jean0Pascal Granier1Thomas Leroy2IFP Energies Nouvelles, 1-4 Av. du Bois Préau, 92852 Rueil-Malmaison, FranceIFP Energies Nouvelles, 1-4 Av. du Bois Préau, 92852 Rueil-Malmaison, FranceIFP Energies Nouvelles, 1-4 Av. du Bois Préau, 92852 Rueil-Malmaison, FranceMinimizing fuel consumption of passenger car vehicles can be achieved thanks to hybridization of the powertrain associated with innovative engine technologies. To feed the new high compression ratio combustion systems, air system cutting-edge technologies are used to manage air and EGR (Exhaust Gas Recirculation) quantities. Increasing EGR allows us to improve engine consumption in the high efficiency area, but it comes at the cost of a loss of stability. It is then of primary importance to be able to manage the engine near the stability limit to minimize fuel consumption. So far, the stability limit is managed in open-loop thanks to conservative calibration of the EGR quantity, implying efficiency losses. This paper addresses the combustion stability feedback control using in-cylinder pressure sensors. From this information, an indicator of stability is proposed, offering a more robust behavior in transient situations than state-of-the-art indicators. This indicator is then used to feed a controller that adapts the open-loop EGR target to go towards the stability limit. Experimental results obtained on a high efficiency gasoline engine stress the relevance of the approach in minimizing fuel consumption under real driving conditions.https://www.mdpi.com/1996-1073/15/7/2530hybrid gasoline engineexhaust gas recirculationcombustion stabilityin-cylinder pressure sensor
spellingShingle Maxime Jean
Pascal Granier
Thomas Leroy
Combustion Stability Control Based on Cylinder Pressure for High Efficiency Gasoline Engines
Energies
hybrid gasoline engine
exhaust gas recirculation
combustion stability
in-cylinder pressure sensor
title Combustion Stability Control Based on Cylinder Pressure for High Efficiency Gasoline Engines
title_full Combustion Stability Control Based on Cylinder Pressure for High Efficiency Gasoline Engines
title_fullStr Combustion Stability Control Based on Cylinder Pressure for High Efficiency Gasoline Engines
title_full_unstemmed Combustion Stability Control Based on Cylinder Pressure for High Efficiency Gasoline Engines
title_short Combustion Stability Control Based on Cylinder Pressure for High Efficiency Gasoline Engines
title_sort combustion stability control based on cylinder pressure for high efficiency gasoline engines
topic hybrid gasoline engine
exhaust gas recirculation
combustion stability
in-cylinder pressure sensor
url https://www.mdpi.com/1996-1073/15/7/2530
work_keys_str_mv AT maximejean combustionstabilitycontrolbasedoncylinderpressureforhighefficiencygasolineengines
AT pascalgranier combustionstabilitycontrolbasedoncylinderpressureforhighefficiencygasolineengines
AT thomasleroy combustionstabilitycontrolbasedoncylinderpressureforhighefficiencygasolineengines