Urea injection control method and device

The invention provides a urea injection control method and device which are applied to a two-stage SCR aftertreatment system.The method comprises the steps that the first temperature mean value of a preceding-stage SCR, the second temperature mean value of a backward-stage SCR, the first nitrogen ox...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG CHEN, LI JUNQI, CHEN YAQI, LUAN JUNSHAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING 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 STEAM ENGINES WEAPONS
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