METHOD FOR ESTIMATING THE OVERALL DILUTION OF THE OIL OF AN INTERNAL COMBUSTION ENGINE

The invention relates to a method for estimating the overall dilution ratio of the oil of an internal combustion engine provided with a device for treating combustion gases requiring phases of treatment by post-injection of fuel into the cylinders of the engine, said method comprising steps of estim...

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Bibliographic Details
Main Author PEYRARD, Benoit
Format Patent
LanguageEnglish
French
German
Published 03.11.2021
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
CRANKCASE VENTILATING
ENGINE PLANTS IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
LUBRICATING INTERNAL COMBUSTION ENGINES
LUBRICATING OF MACHINES OR ENGINES IN GENERAL
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary:The invention relates to a method for estimating the overall dilution ratio of the oil of an internal combustion engine provided with a device for treating combustion gases requiring phases of treatment by post-injection of fuel into the cylinders of the engine, said method comprising steps of estimating the dilution ratio of fuel in oil (T1), characterised in that it also comprises at least one step of estimating the dilution ratio of the oil's own carbonaceous compound fractionation (T2) as a function of the ratio of fuel injected into the oil (T11), the overall dilution ratio (T) of the oil being the sum of at least said ratio of fuel dilution in oil (T1) and said dilution ratio of the oil fractionation.
Bibliography:Application Number: EP20190818176