EP 2520785 A3 20170215 - Method for estimating the dilution of fuel in the oil of an internal combustion engine
Title (en)
Method for estimating the dilution of fuel in the oil of an internal combustion engine
Title (de)
Verfahren zur Abschätzung der Verdünnung eines Kraftstoffes im Öl eines Verbrennungsmotors
Title (fr)
Procedé d'estimation de la dilution du carburant dans l'huile d'un moteur à combustion interne
Publication
Application
Priority
FR 1153898 A 20110506
Abstract (en)
[origin: EP2520785A2] The method involves estimating dilution rate (C) of fuel based on an operating mode of an internal combustion engine. Dilution rate variation (dC) is calculated (120) at every instant from a set of parameters apart from a post-injection fuel regeneration phase, where the parameters include a value representative of evaporation temperature of diluted fuel in an oil of the engine and time elapsed from an end of the regeneration phase. The variation of dilution rate during each time step is calculated according to a kinetic law of order 1 by a specific equation.
IPC 8 full level
F01M 11/10 (2006.01); F02D 41/02 (2006.01); F02D 41/04 (2006.01)
CPC (source: EP)
F01M 11/10 (2013.01); F02D 41/027 (2013.01); F01M 2250/60 (2013.01); F02D 2250/11 (2013.01)
Citation (search report)
- [XI] FR 2866957 A1 20050902 - PEUGEOT CITROEN AUTOMOBILES SA [FR]
- [A] FR 2890411 A1 20070309 - PEUGEOT CITROEN AUTOMOBILES SA [FR]
- [A] EP 1614870 A1 20060111 - FORD GLOBAL TECH LLC [US]
- [A] US 2004099252 A1 20040527 - NAGAISHI HATSUO [JP], et al
- [A] JP 2004346881 A 20041209 - NISSAN MOTOR
- [A] EP 1798387 A2 20070620 - NISSAN MOTOR [JP]
- [A] DE 102008002125 A1 20081204 - DENSO CORP [JP]
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)
EP 2520785 A2 20121107; EP 2520785 A3 20170215; EP 2520785 B1 20180725; FR 2974853 A1 20121109; FR 2974853 B1 20150501
DOCDB simple family (application)
EP 12305325 A 20120320; FR 1153898 A 20110506