METHOD AND DEVICE FOR CALCULATING PRESSURE OF VENTURI TUBE
A method for calculating a pressure of a Venturi tube, comprising acquiring a pressure value P2 of an air inlet tube, and acquiring a pressure difference ΔP between an inlet and a throat of the Venturi tube; performing correction on the P2 by using a predetermined first correction MAP, and obtaining...
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| creator | Zhang, Chen Dai, Ziyang Luan, Junshan Yao, Wang |
| description | A method for calculating a pressure of a Venturi tube, comprising acquiring a pressure value P2 of an air inlet tube, and acquiring a pressure difference ΔP between an inlet and a throat of the Venturi tube; performing correction on the P2 by using a predetermined first correction MAP, and obtaining a pressure PA of a first point before an EGR mixer; performing correction on the ΔP by using a predetermined second correction MAP, and obtaining a pressure loss PB of the Venturi tube; and summing the PA and the PB to obtain the pressure of the Venturi tube. According to the method for calculating the pressure of the Venturi tube, an inlet pressure of the Venturi tube can be collected and calculated by using a calculation mode rather than a sensor. Therefore, it is not necessary to arrange an inlet pressure sensor of the Venturi tube, the number of sensors arranged on the Venturi tube is reduced, and an exhaust flow can also be calculated. Further provided is a device for calculating the pressure of the Venturi tube. |
| format | Patent |
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According to the method for calculating the pressure of the Venturi tube, an inlet pressure of the Venturi tube can be collected and calculated by using a calculation mode rather than a sensor. Therefore, it is not necessary to arrange an inlet pressure sensor of the Venturi tube, the number of sensors arranged on the Venturi tube is reduced, and an exhaust flow can also be calculated. Further provided is a device for calculating the pressure of the Venturi tube.</description><language>hrv ; eng</language><subject>BLASTING ; COMBUSTION ENGINES ; CONTROLLING COMBUSTION ENGINES ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; LIGHTING ; MEASURING ; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL ; MECHANICAL ENGINEERING ; METERING BY VOLUME ; PHYSICS ; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF ; TESTING ; WEAPONS</subject><creationdate>2024</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=20240705&DB=EPODOC&CC=HR&NR=P20240512T1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25555,76308</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240705&DB=EPODOC&CC=HR&NR=P20240512T1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Zhang, Chen</creatorcontrib><creatorcontrib>Dai, Ziyang</creatorcontrib><creatorcontrib>Luan, Junshan</creatorcontrib><creatorcontrib>Yao, Wang</creatorcontrib><title>METHOD AND DEVICE FOR CALCULATING PRESSURE OF VENTURI TUBE</title><description>A method for calculating a pressure of a Venturi tube, comprising acquiring a pressure value P2 of an air inlet tube, and acquiring a pressure difference ΔP between an inlet and a throat of the Venturi tube; performing correction on the P2 by using a predetermined first correction MAP, and obtaining a pressure PA of a first point before an EGR mixer; performing correction on the ΔP by using a predetermined second correction MAP, and obtaining a pressure loss PB of the Venturi tube; and summing the PA and the PB to obtain the pressure of the Venturi tube. According to the method for calculating the pressure of the Venturi tube, an inlet pressure of the Venturi tube can be collected and calculated by using a calculation mode rather than a sensor. Therefore, it is not necessary to arrange an inlet pressure sensor of the Venturi tube, the number of sensors arranged on the Venturi tube is reduced, and an exhaust flow can also be calculated. 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According to the method for calculating the pressure of the Venturi tube, an inlet pressure of the Venturi tube can be collected and calculated by using a calculation mode rather than a sensor. Therefore, it is not necessary to arrange an inlet pressure sensor of the Venturi tube, the number of sensors arranged on the Venturi tube is reduced, and an exhaust flow can also be calculated. Further provided is a device for calculating the pressure of the Venturi tube.</abstract><oa>free_for_read</oa></addata></record> |
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| language | hrv ; eng |
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| subjects | BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL MECHANICAL ENGINEERING METERING BY VOLUME PHYSICS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TESTING WEAPONS |
| title | METHOD AND DEVICE FOR CALCULATING PRESSURE OF VENTURI TUBE |
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