Global Patent Index - EP 1524425 B1

EP 1524425 B1 20060517 - 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

EP 1524425 B1 20060517 (FR)

Application

EP 04300673 A 20041011

Priority

FR 0311926 A 20031013

Abstract (en)

[origin: EP1524425A1] 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.

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)

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 326624 T 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