System for estimating the soot load of a particle filter

摘要

This system for evaluating the soot load of a particle filter integrated in a diesel engine exhaust system of a motor vehicle comprises: storage means for storing a pre-established map of unit soot emission rates for each speed/load operating point of the engine; acquisition means for acquiring the current operating point of the engine in order to determine the corresponding unit soot emission rate; and accumulator means for accumulating the unit emission rates while the engine is in operation in order to determine the soot load of the particle filter.