Reductant injector temperature model based on coil resistance

A method includes receiving, at a controller having one or more processors, one or more measured parameters, each measured parameter related to a temperature that affects a temperature of a reductant injector of an exhaust system of an engine. The method includes determining a resistance of a coil o...

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Bibliographische Detailangaben
Hauptverfasser:	FAIED LOUAI A, AXE BRYAN D
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CONTROLLING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PHYSICS REGULATING STEAM ENGINES SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES WEAPONS
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Beschreibung
Zusammenfassung:	A method includes receiving, at a controller having one or more processors, one or more measured parameters, each measured parameter related to a temperature that affects a temperature of a reductant injector of an exhaust system of an engine. The method includes determining a resistance of a coil of the reductant injector. The method includes estimating the temperature of the reductant injector based on (i) the one or more measured parameters and (ii) the coil resistance. The method also includes controlling a duty cycle of the reductant injector based on the estimated temperature of the reductant injector.