EP 3679236 A1 20200715 - METHOD FOR PROTECTING A PARTICULATE FILTER IN AN EXHAUST LINE DURING REGENERATION
Title (en)
METHOD FOR PROTECTING A PARTICULATE FILTER IN AN EXHAUST LINE DURING REGENERATION
Title (de)
VERFAHREN ZUM SCHUTZ EINES PARTIKELFILTERS IN EINER ABGASLEITUNG WÄHREND DER REGENERATION
Title (fr)
PROCEDE DE PROTECTION D'UN FILTRE A PARTICULES DANS UNE LIGNE D'ECHAPPEMENT PENDANT UNE REGENERATION
Publication
Application
Priority
- FR 1758201 A 20170906
- FR 2018052105 W 20180827
Abstract (en)
[origin: WO2019048754A1] The invention relates to a method for protecting a particulate filter in an exhaust line against the risk of at least partial melting (Fus) of the filter during filter regeneration, an initial increase in the temperature in the filter, required for the start of regeneration, being obtained by cutting off (Cl) the injection of fuel to the engine. The time (CdCoup) for which injection is cut off (Cl) is measured, and the maximum authorised cut-off time (tmax) is estimated, as is the presence of the risk of melting (Fus) of the filter, estimated according to a temperature (T°amont) upstream of the filter and an estimated charge of particulate soot (CharSu) in the filter. When the measured duration of the injection cut-off (Cl) exceeds (tautD) the maximum time (tmax) and a risk of melting (Fus) is present (LimF), the injection cut-off (Cl) is inhibited (DinCinj).
IPC 8 full level
F02D 41/00 (2006.01); F01N 3/023 (2006.01); F01N 3/035 (2006.01); F01N 9/00 (2006.01); F01N 11/00 (2006.01); F02D 41/02 (2006.01); F02D 41/22 (2006.01)
CPC (source: EP)
F01N 3/0253 (2013.01); F01N 9/002 (2013.01); F01N 11/002 (2013.01); F02D 41/029 (2013.01); F02D 41/123 (2013.01); F01N 3/101 (2013.01); F01N 13/009 (2014.06); F01N 2260/04 (2013.01); F01N 2430/00 (2013.01); F01N 2550/04 (2013.01); F01N 2560/025 (2013.01); F01N 2560/08 (2013.01); F01N 2560/14 (2013.01); F01N 2610/03 (2013.01); F01N 2610/146 (2013.01); F01N 2900/0412 (2013.01); F01N 2900/0418 (2013.01); F01N 2900/0422 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1602 (2013.01); F01N 2900/1606 (2013.01); F01N 2900/1821 (2013.01); F02D 2041/1433 (2013.01); F02D 2200/0804 (2013.01); F02D 2200/0812 (2013.01); Y02A 50/20 (2017.12); Y02T 10/12 (2013.01); Y02T 10/40 (2013.01)
Citation (search report)
See references of WO 2019048754A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3070728 A1 20190308; FR 3070728 B1 20190830; CN 111094728 A 20200501; EP 3679236 A1 20200715; MA 50075 A 20200715; WO 2019048754 A1 20190314
DOCDB simple family (application)
FR 1758201 A 20170906; CN 201880058199 A 20180827; EP 18773531 A 20180827; FR 2018052105 W 20180827; MA 50075 A 20180827