Method for determining the amount of particulate accumulated in a particulate filter

摘要

A method for determining the amount (m sv ) of particulate that has accumulated in a particulate filter, comprising calculating an amount (m s ) of particulate that has accumulated in the particulate filter on the basis of a physical model that uses measured and/or determined physical quantities, and subjecting the calculated particulate amount (m s ) to validation on the basis of given validation criteria, the latter step envisaging validation of the calculated particulate amount (m s ) in the case where said criteria are satisfied, and validation of a substitutive particulate amount (m subst ) which is a function of a previously validated amount (m sv ) and of an admissible rate of variation in the case where said criteria are not satisfied.