EP 1247963 A3 20030917 - Method for controlling of an operating mode of a lean burn internal combustion engine
Title (en)
Method for controlling of an operating mode of a lean burn internal combustion engine
Title (de)
Verfahren zur Steuerung eines Betriebsmodus einer magerlauffähigen Verbrennungskraftmaschine
Title (fr)
Procédé de commande d'un mode de fonctionnement d'un moteur à combustion interne à mélange pauvre
Publication
Application
Priority
DE 10117434 A 20010403
Abstract (en)
[origin: EP1247963A2] Process for controlling an operating modulus of a lean burn IC engine (10) having an exhaust gas tract (14) with a NOx storage catalyst (20) and a gas sensor (24) comprises allowing a lean operating modulus of the engine with lambda more than 1 depending on threshold values for a temperature of the catalyst and for a further operating parameter of the engine and/or exhaust gas tract; and varying at least one threshold value depending on an actual NOx storability and/or NOx convertibility of the catalyst. Preferred Features: The further parameter comprises a NOx crude emission of the engine and/or a crude emission of a further exhaust gas component. The further exhaust gas component comprises non-combustible hydrocarbons, carbon dioxide and/or carbon monoxide.
IPC 1-7
IPC 8 full level
F02D 41/02 (2006.01); F02D 41/30 (2006.01); F01N 3/08 (2006.01)
CPC (source: EP)
F01N 3/0842 (2013.01); F02D 41/0275 (2013.01); F02D 41/1462 (2013.01); F02D 41/1463 (2013.01); F02D 41/3076 (2013.01); F02D 41/1402 (2013.01); F02D 2200/0802 (2013.01); F02D 2200/0811 (2013.01)
Citation (search report)
- [X] WO 0106105 A1 20010125 - VOLKSWAGEN AG [DE], et al
- [DA] DE 19932290 A1 20010111 - VOLKSWAGEN AG [DE]
- [A] WO 9935386 A1 19990715 - FORD GLOBAL TECH INC [US], et al
- [DA] DE 19850786 A1 20000217 - VOLKSWAGEN AG [DE]
- [A] US 5771686 A 19980630 - PISCHINGER STEFAN [DE], et al
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 1247963 A2 20021009; EP 1247963 A3 20030917; EP 1247963 B1 20060412; DE 10117434 A1 20021010; DE 50206351 D1 20060524
DOCDB simple family (application)
EP 02090054 A 20020213; DE 10117434 A 20010403; DE 50206351 T 20020213