Corrected SCR efficiency model, correction method and vehicle
The invention belongs to the technical field of tail gas aftertreatment, and particularly relates to a corrected SCR efficiency model, a correction method and a vehicle. The correction method comprises the steps that the actual efficiency of an SCR model and the conversion efficiency of different me...
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| creator | SUN XUANJIAN TENG JIAXIN CAO LULU |
| description | The invention belongs to the technical field of tail gas aftertreatment, and particularly relates to a corrected SCR efficiency model, a correction method and a vehicle. The correction method comprises the steps that the actual efficiency of an SCR model and the conversion efficiency of different measuring points of a section are calculated; classifying the measuring points according to the deviation between the conversion efficiency of each point and the actual efficiency so as to obtain a plurality of branch models, and sequentially calculating the area proportion and the efficiency correction coefficient of each branch model; correcting the efficiency coefficient of each branch model based on the temperature and the airspeed to form an efficiency correction coefficient map; and calculating the flow rate and conversion efficiency of NOx and ammonia flowing into each branch model based on the area ratio and the efficiency correction factor, and calculating the efficiency of the corrected SCR efficiency model |
| format | Patent |
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The correction method comprises the steps that the actual efficiency of an SCR model and the conversion efficiency of different measuring points of a section are calculated; classifying the measuring points according to the deviation between the conversion efficiency of each point and the actual efficiency so as to obtain a plurality of branch models, and sequentially calculating the area proportion and the efficiency correction coefficient of each branch model; correcting the efficiency coefficient of each branch model based on the temperature and the airspeed to form an efficiency correction coefficient map; and calculating the flow rate and conversion efficiency of NOx and ammonia flowing into each branch model based on the area ratio and the efficiency correction factor, and calculating the efficiency of the corrected SCR efficiency model</description><language>chi ; eng</language><subject>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</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230718&DB=EPODOC&CC=CN&NR=116446984A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230718&DB=EPODOC&CC=CN&NR=116446984A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SUN XUANJIAN</creatorcontrib><creatorcontrib>TENG JIAXIN</creatorcontrib><creatorcontrib>CAO LULU</creatorcontrib><title>Corrected SCR efficiency model, correction method and vehicle</title><description>The invention belongs to the technical field of tail gas aftertreatment, and particularly relates to a corrected SCR efficiency model, a correction method and a vehicle. 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| language | chi ; eng |
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| subjects | 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 |
| title | Corrected SCR efficiency model, correction method and vehicle |
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