Method for calculating mass of soot in particulate filter of exhaust line of combustion engine of car, involves measuring pressure difference of exhaust gas between inlet and outlet of particulate filter and volume flow of exhaust gas

摘要

The method involves measuring pressure difference of exhaust gas between an inlet and an outlet of a particulate filter (8) and a volume flow of exhaust gas. Mass of soot is calculated from a function established by mass of soot according to pressure difference of exhaust gas and volume flow of exhaust gas. Coefficients are determined by inversion of a physical model expressing the pressure difference according to mass and volume flow of exhaust gas and physical characteristic of the particle filter. Independent claims are also included for the following: (1) a method for regeneration of a particle filter of an exhaust line of an internal combustion engine of a car (2) an electronic computer.