EP 1576269 A1 20050921 - CATALYST TEMPERATURE MODELLING DURING EXOTHERMIC OPERATION
Title (en)
CATALYST TEMPERATURE MODELLING DURING EXOTHERMIC OPERATION
Title (de)
KATALYSATORTEMPERATUR-MODELLIERUNG BEI EXOTHERMEM BETRIEB
Title (fr)
MODELISATION DE LA TEMPERATURE D'UN CATALYSEUR EN CAS DE FONCTIONNEMENT EN MODE EXOTHERMIQUE
Publication
Application
Priority
- DE 0302511 W 20030725
- DE 10258278 A 20021213
Abstract (en)
[origin: WO2004055346A1] A method and a calculating device for modelling the temperature (T_kat) of a catalyst (34) in the exhaust of an internal combustion engine (10) are disclosed. The heat input into the catalyst (34) from exothermic reactions is considered. The method is characterised in that a first correction value (delta_Tl) and a second correction value (delta_T2) are generated, which each concern heat input into the catalyst (34) from exothermic reactions, whereby (delta_Tl) is dependent on the relationship (AF) of the amount of fuel (S) to the air mass, which is burnt in the internal combustion engine (10), together with said air mass and (delta_T2) is dependent on a heat input resulting from an exothermic reaction of a second fuel mass which is dosed for the regeneration of the catalyst (34), as a supplement to the fuel proportion dosed and burnt as a fuel/air mixture in the internal combustion engine (10).
IPC 1-7
IPC 8 full level
F02D 41/02 (2006.01); F02D 41/40 (2006.01); F01N 9/00 (2006.01)
CPC (source: EP US)
F01N 9/005 (2013.01 - EP US); F02D 41/0255 (2013.01 - EP US); F02D 41/029 (2013.01 - EP US); F02D 41/405 (2013.01 - EP US); F02D 41/025 (2013.01 - EP US); F02D 2200/0804 (2013.01 - EP US); Y02T 10/12 (2013.01 - EP US); Y02T 10/40 (2013.01 - EP US)
Citation (search report)
See references of WO 2004055346A1
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
WO 2004055346 A1 20040701; DE 10258278 A1 20040624; EP 1576269 A1 20050921; JP 2006509947 A 20060323; US 2005228572 A1 20051013
DOCDB simple family (application)
DE 0302511 W 20030725; DE 10258278 A 20021213; EP 03813071 A 20030725; JP 2004559584 A 20030725; US 51344504 A 20041025