EP 2090767 B1 20110518 - Estimation of the soot load of a particulate filter
Title (en)
Estimation of the soot load of a particulate filter
Title (de)
Beurteilung der Rußlast eines Partikelfilters
Title (fr)
Évaluation de la charge de suie d'un filtre particulier
Publication
Application
Priority
EP 08002631 A 20080213
Abstract (en)
[origin: EP2090767A1] The soot load of a particulate filter (12) in the exhaust system of a motor vehicle is estimated by a) selecting (S2) a mission profile of the motor vehicle based on the history of one or more of its operation parameters (É, AR); b) increasing (S7) the estimated soot load at a rate (SR) associated to the currently selected mission profile; c) determining (S4) a target fuel injection rate (TFR) of an engine of the motor vehicle based on input from a driver (S3) ; d) determining a limit fuel injection rate (LFR) based on a set of operation parameters comprising at least one of the engine speed (É) and the engine airflow (AR); e) in a time interval in which the target fuel injection rate (TFR) exceeds the limit fuel injection rate (LFR), increasing the estimated soot load (S9) at a rate (TSR) associated to an instantaneous value of at least one of said operation parameters.
IPC 8 full level
F02D 41/02 (2006.01)
CPC (source: EP)
F02D 41/0285 (2013.01); F02D 41/1467 (2013.01); F02D 2200/0812 (2013.01); F02D 2200/606 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2090767 A1 20090819; EP 2090767 B1 20110518; AT E510122 T1 20110615
DOCDB simple family (application)
EP 08002631 A 20080213; AT 08002631 T 20080213