Particulate filter regeneration method for a motor vehicle
The invention relates to a method for the regeneration of a particulate filter ( 7 ) arranged on an exhaust line ( 5 ) of an engine ( 3 ) of a motor vehicle ( 1 ), wherein the charge of said filter ( 7 ) is evaluated by means of a model wherein P=f(Qvol, soot mass), and P=Pup-Pdown, and Qvol=K*(Qair...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The invention relates to a method for the regeneration of a particulate filter ( 7 ) arranged on an exhaust line ( 5 ) of an engine ( 3 ) of a motor vehicle ( 1 ), wherein the charge of said filter ( 7 ) is evaluated by means of a model wherein P=f(Qvol, soot mass), and P=Pup-Pdown, and Qvol=K*(Qair+pfuel*Qcarb)*N*Tup/Pup, or Pup et Pdown are the pressures measured respectively upstream and downstream from said particulate filter ( 7 ). The inventive method is characterized in that Pdown is modelled and in that Pup is determined by means of the relation Pup=P+Pdown. |
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