EP 1524425 A1 20050420 - Control method for regeneration of a particle filter
Title (en)
Control method for regeneration of a particle filter
Title (de)
Steuerungsverfahren für die Regeneration eines Partikelfilters
Title (fr)
Procédé de commande pour la régénération d'un filtre à particules
Publication
Application
Priority
FR 0311926 A 20031013
Abstract (en)
The process establishes an estimate of the dilution rate (Pdil) of fuel in oil and authorizes the regeneration when the estimate of the dilution rate is less than a preset dilution threshold. The process handles data and controls the engine to achieve regeneration of the particle filter when necessary. The variation in dilution rate (dPdil) is evaluated by a first function (-Fevap) representing the evaporation of the fuel while no regeneration of the filter is in progress, and by a second function while the filter is being regenerated. The second function is the sum of the first function and a third function (Grege). The variation in the dilution rate is evaluated as a function of the speed of rotation of the engine (N) and a variable representing the load on the engine (Qc), such as the flow of injected fuel. The functions are recorded in the form of graphs.
Abstract (fr)
Un système de motorisation comporte un moteur (1), un filtre à particules (3) recevant des gaz d'échappement du moteur (1) pour retenir les particules des gaz d'échappement. Selon un procédé de commande, on traite des Informations et on commande le moteur (1) pour obtenir la régénération du filtre à particules (3) lorsque nécessaire. On établit une estimation du taux de dilution (Pdil) de carburant dans l'huile, et on autorise la régénération si le taux de dilution (Pdil) est inférieur à un seuil de dilution prédéterminé (Sdil). <IMAGE>
IPC 1-7
IPC 8 full level
F02D 41/02 (2006.01); F02D 41/04 (2006.01); F02D 41/22 (2006.01); F02D 41/40 (2006.01)
CPC (source: EP)
F02D 41/029 (2013.01); F02D 41/047 (2013.01); F02D 41/22 (2013.01); F01M 2001/165 (2013.01); F02D 41/401 (2013.01); F02D 2250/11 (2013.01)
Citation (search report)
- [A] US 2003168039 A1 20030911 - EBELSHEISER OLIVER [DE], et al
- [A] EP 1281852 A2 20030205 - FIAT RICERCHE [IT]
- [A] EP 1308617 A1 20030507 - MITSUBISHI MOTORS CORP [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1524425 A1 20050420; EP 1524425 B1 20060517; AT E326624 T1 20060615; DE 602004000902 D1 20060622; DE 602004000902 T2 20070426; ES 2259436 T3 20061001; FR 2860830 A1 20050415; FR 2860830 B1 20060113
DOCDB simple family (application)
EP 04300673 A 20041011; AT 04300673 T 20041011; DE 602004000902 T 20041011; ES 04300673 T 20041011; FR 0311926 A 20031013