EP 1227234 A3 20030402 - Method and apparatus for operating a NOx-sensor located in the exhaust line of an internal combustion engine
Title (en)
Method and apparatus for operating a NOx-sensor located in the exhaust line of an internal combustion engine
Title (de)
Verfahren und Vorrichtung zum Betreiben eines im Abgasweg eines Verbrennungsmotors angeordneten NOx-Sensors
Title (fr)
Procédé et dispositif de commande d'un capteur de NOx situé dans la ligne d'échappement d'un moteur à combustion interne
Publication
Application
Priority
DE 10103415 A 20010126
Abstract (en)
[origin: EP1227234A2] The method involves coordinating measurement values of a nitrogen oxides (NOx) sensor in an exhaust system with earlier signals values for the same NOx content. This involves setting a defined engine operating state, detecting at least one NOx sensor value, comparing this with values for the known NOx content, determining the difference, determining a correction value and correcting the measured value with the correction value. An Independent claim is included for an arrangement for determining the nitrogen oxides content in the exhaust gas system of an internal combustion engine.
IPC 1-7
IPC 8 full level
F01N 3/08 (2006.01); F02D 41/02 (2006.01); F02D 41/14 (2006.01); F02D 41/24 (2006.01)
CPC (source: EP)
F01N 3/0842 (2013.01); F02D 41/0275 (2013.01); F02D 41/146 (2013.01); F02D 41/2441 (2013.01); F02D 41/2474 (2013.01)
Citation (search report)
- [X] DE 19810483 A1 19990923 - BOSCH GMBH ROBERT [DE]
- [X] EP 1041254 A2 20001004 - TOYOTA MOTOR CO LTD [JP]
- [X] DE 19926139 A1 20001214 - VOLKSWAGEN AG [DE]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1227234 A2 20020731; EP 1227234 A3 20030402; EP 1227234 B1 20050216; DE 10103415 A1 20021017; DE 50105363 D1 20050324
DOCDB simple family (application)
EP 01128691 A 20011201; DE 10103415 A 20010126; DE 50105363 T 20011201