Method for determining the temperature at a specific point in an exhaust pipe of an internal combustion engine

The claimed invention relates to a method for determining the temperature at a specific point, such as the inlet of turbocharger turbine, in an exhaust pipe 275 of an internal combustion engine 110 and the associated apparatus for carrying out the method. The method determines the temperature based...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FRANCESCO CIANFLONE, MANUEL TUGNOLO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	The claimed invention relates to a method for determining the temperature at a specific point, such as the inlet of turbocharger turbine, in an exhaust pipe 275 of an internal combustion engine 110 and the associated apparatus for carrying out the method. The method determines the temperature based on the temperature detected by a temperature sensor 431 in the exhaust if the engine is not operating under a transient condition and uses an estimate of the exhaust temperature based on a pressure measurement taken by a pressure sensor 360 within the engine cylinder if the engine is operating under a transient condition. The transient condition may arise from a variation in an accelerator pedal position leading to changes in requested engine output. Also disclosed is an automotive system using apparatus to carry out the method and having an electronic control unit (ECU) programmed to carry out the method. A computer program for the method, a computer program product, an internal combustion engine with an ECU loaded with the program and an electromagnetic signal representing the program are also disclosed.