Method for diagnosing an exhaust gas catalytic converter, diagnosis device and motor vehicle having such a device
A method for diagnosing an exhaust-gas catalytic converter (28) arranged in an exhaust-gas system (20) of an internal combustion engine (12) for the catalytic conversion of at least one exhaust-gas component from the internal combustion engine (12), which has an exhaust-gas recirculation means with...
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| creator | Veldten Burkhard Kulaszewski Maciej |
| description | A method for diagnosing an exhaust-gas catalytic converter (28) arranged in an exhaust-gas system (20) of an internal combustion engine (12) for the catalytic conversion of at least one exhaust-gas component from the internal combustion engine (12), which has an exhaust-gas recirculation means with which a partial stream of the exhaust gas can be drawn off downstream of the catalytic converter (14) and fed into the combustion air of the internal combustion engine (12), involves determining the current raw emission (NOx-raw) of the internal combustion engine (12) in of the exhaust-gas component; measuring the current concentration of the exhaust-gas component (NOx-meas) in the exhaust gas upstream of the catalytic converter (28); and determining a diagnostic value for the catalytic converter (28) in terms of the conversion of the exhaust-gas component as a function of the modelled raw emission (NOx-raw) from the internal combustion engine (12) and the measured concentration of the exhaust-gas component (NOx-meas). The invention further relates to a diagnostic device configured to perform the method and a motor vehicle having such a device. |
| format | Patent |
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The invention further relates to a diagnostic device configured to perform the method and a motor vehicle having such a device.</description><language>eng</language><subject>BLASTING ; CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC DIGITAL DATA PROCESSING ; 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 ; MEASURING ; MECHANICAL ENGINEERING ; PHYSICS ; STEAM ENGINES ; TESTING ; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES ; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR ; WEAPONS</subject><creationdate>2017</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=20170314&DB=EPODOC&CC=US&NR=9593617B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170314&DB=EPODOC&CC=US&NR=9593617B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Veldten Burkhard</creatorcontrib><creatorcontrib>Kulaszewski Maciej</creatorcontrib><title>Method for diagnosing an exhaust gas catalytic converter, diagnosis device and motor vehicle having such a device</title><description>A method for diagnosing an exhaust-gas catalytic converter (28) arranged in an exhaust-gas system (20) of an internal combustion engine (12) for the catalytic conversion of at least one exhaust-gas component from the internal combustion engine (12), which has an exhaust-gas recirculation means with which a partial stream of the exhaust gas can be drawn off downstream of the catalytic converter (14) and fed into the combustion air of the internal combustion engine (12), involves determining the current raw emission (NOx-raw) of the internal combustion engine (12) in of the exhaust-gas component; measuring the current concentration of the exhaust-gas component (NOx-meas) in the exhaust gas upstream of the catalytic converter (28); and determining a diagnostic value for the catalytic converter (28) in terms of the conversion of the exhaust-gas component as a function of the modelled raw emission (NOx-raw) from the internal combustion engine (12) and the measured concentration of the exhaust-gas component (NOx-meas). 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The invention further relates to a diagnostic device configured to perform the method and a motor vehicle having such a device.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING 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 MEASURING MECHANICAL ENGINEERING PHYSICS STEAM ENGINES TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR WEAPONS |
| title | Method for diagnosing an exhaust gas catalytic converter, diagnosis device and motor vehicle having such a device |
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