Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2006-06-27
2006-06-27
Tran, Binh Q. (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S274000, C060S286000, C060S297000, C060S311000, C701S103000, C701S115000, C703S005000, C703S008000, C073S118040
Reexamination Certificate
active
07065960
ABSTRACT:
Method for activation of the regeneration of a particulate filter for a motor vehicle engine, comprising the steps of calculating an estimated value (xM) of a quantity of particulate accumulated in the particulate filter; comparing (8) the estimated value (xM) with a threshold value (mTH) corresponding to a predetermined maximum quantity of particulate; and activating the regeneration (9) if the estimated value (xM) exceeds the threshold value (mTH). The step of calculating an estimated value (xM) comprises the steps of estimating a first quantity of particulate (xMS) accumulated in the particulate filter by means of a statistical model (3) based on experimental data; estimating a second quantity of particulate (xMF) accumulated in the particulate filter by means of a physical model (2) using physical quantities measured; determining a field of admissibility on the basis of the first quantity of particulate (xMS); comparing the estimated value (xM) with the second quantity of particulate (xMF) if the second quantity of particulate (xMF) is within the field of admissibility; and limiting the estimated value (xM) if the second quantity of particulate (xMF) is outside the field of admissibility.
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Gioannini Alberto
Perin Michelangelo
Berenato White & Stavish LLC
C.R.F. Societa Consortile per Azioni
Tran Binh Q.
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