Control strategy for heated fluid lines

A control strategy selectively controls the heating of fluid lines (128) equipped with line heaters (130) that may be utilized with a selective catalytic reduction system (120). The control strategy measures a tank temperature representative of reductant agent in a storage tank (124) and a represent...

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Bibliographische Detailangaben
Hauptverfasser:	KING EDWARD, MCCOY DARIN J, FUNKE STEVEN J
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION 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 LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A control strategy selectively controls the heating of fluid lines (128) equipped with line heaters (130) that may be utilized with a selective catalytic reduction system (120). The control strategy measures a tank temperature representative of reductant agent in a storage tank (124) and a representative ambient temperature representative of an ambient temperature proximate the fluid line (128). The control strategy determines a lowest possible reductant agent temperature ("LPRAT") based on the measured tank temperature and representative ambient temperature. The LPRAT is compared with a desired reductant agent temperature and, in response to the comparison, the control strategy may activate the line heater (128).