METHOD FOR ADAPTING THE ESTIMATION OF THE SOOT COMBUSTION RATE IN A FILTER OF AN INTERNAL COMBUSTION ENGINE

The invention mainly relates to a process for adapting an estimate of a combustion rate of the soot (V ( suies/o 2 -N ) of a particulate filter in an exhaust line of a thermal engine, in particular of a motor vehicle, characterised in that, during a regeneration phase of the particulate filter, said...

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Bibliographische Detailangaben
1. Verfasser: LAIGLE, Emmanuel
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The invention mainly relates to a process for adapting an estimate of a combustion rate of the soot (V ( suies/o 2 -N ) of a particulate filter in an exhaust line of a thermal engine, in particular of a motor vehicle, characterised in that, during a regeneration phase of the particulate filter, said process comprises: - a step of estimating a combustion rate of the soot in accordance with a standard estimation model, - a step of detecting a stabilisation of an oxygen concentration in exhaust gasses, and - a step of modifying the standard estimation model by weighting the combustion rate of the soot by a gain (gain stab O 2 ) following the detection of the stabilisation of the oxygen concentration.