Urea injection amount calculation method and device, vehicle and storage medium

The invention discloses a urea injection amount calculation method and device, a vehicle and a storage medium. The urea injection amount calculation method comprises the steps that after an engine is started, a ccSCR current temperature value, a ccSCR air speed, a ufSCR current temperature value and...

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Bibliographische Detailangaben
Hauptverfasser:	CHU ZHAOFENG, GUO SHENGGANG, GENG ZONGQI, ZHANG BANGCAI, WANG MENGYU
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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Beschreibung
Zusammenfassung:	The invention discloses a urea injection amount calculation method and device, a vehicle and a storage medium. The urea injection amount calculation method comprises the steps that after an engine is started, a ccSCR current temperature value, a ccSCR air speed, a ufSCR current temperature value and a ufSCR air speed of the double-injection SCR system are obtained, and a ccSCR ammonia storage set value and a ufSCR ammonia storage set value are determined respectively; when the injection starting temperature value of the ccSCR reaches a first injection starting temperature threshold value and the injection starting temperature value of the ufSCR reaches a second injection starting temperature threshold value, a real-time ammonia storage value of the ccSCR and a real-time ammonia storage value of the ufSCR are obtained respectively; and the ccSCR supplementary urea injection amount is determined according to the ccSCR ammonia storage set value and the ccSCR real-time ammonia storage value, and the ufSCR supplem