EP 1252420 B1 20051116 - DEVICE AND METHOD FOR CONTROLLING A NOX REGENERATION OF A NOX STORAGE CATALYST
Title (en)
DEVICE AND METHOD FOR CONTROLLING A NOX REGENERATION OF A NOX STORAGE CATALYST
Title (de)
VORRICHTUNG UND VERFAHREN ZUR STEUERUNG EINER NOX-REGENERATION EINES NOX-SPEICHERKATALYSATORS
Title (fr)
DISPOSITIF ET PROCEDE DE COMMANDE D'UNE REGENERATION DE NOX D'UN CATALYSEUR ACCUMULATEUR DE NOX
Publication
Application
Priority
- DE 10001310 A 20000114
- EP 0100242 W 20010110
Abstract (en)
[origin: WO0151778A1] The invention relates to a method for controlling an NOX regeneration of an NOX storage catalyst that is situated in the exhaust gas system of an internal combustion engine of a vehicle, comprising the following steps: (a) in each lean operating phase of the internal combustion engine, at least one status parameter of the NOX storage catalyst is determined using a measured or calculated NOX crude emission (mroh) of the internal combustion engine and an NOX breakdown emission (m) detected downstream in the exhaust gas by an NOX-sensitive measuring device; (b) a deviation of the status parameter of a current lean operating phase from the status parameters of a preceding lean operating phase is determined and (c) in the event that regeneration is necessary, an NOX regeneration is carried out n times according to the deviation (multiple NOX regeneration). The invention also relates to a device which has means for carrying out the steps of the inventive method.
IPC 1-7
IPC 8 full level
F01N 3/08 (2006.01); F02D 41/02 (2006.01); F02D 41/14 (2006.01)
CPC (source: EP)
F02D 41/0275 (2013.01); F02D 41/146 (2013.01); F02D 41/1461 (2013.01); F02D 41/1463 (2013.01); F02D 41/1475 (2013.01); F01N 3/0842 (2013.01); F02D 2200/0811 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0151778 A1 20010719; DE 10001310 A1 20010719; DE 50108080 D1 20051222; EP 1252420 A1 20021030; EP 1252420 B1 20051116
DOCDB simple family (application)
EP 0100242 W 20010110; DE 10001310 A 20000114; DE 50108080 T 20010110; EP 01942402 A 20010110