Abstract: The invention concerns a system for assisting regeneration of a particulate filter (6) arranged in an exhaust line (3) of a diesel engine (1) associated with a oxidizing catalyst (7), the engine (1) being equipped with feeding means (8) for injecting into the cylinders thereof at least one post-injection. Said system comprises means (17) for controlling the feeding means (8) in accordance with a strategy for regenerating the filter (6) wherein the feeding means (8) are switched between a first operating mode with post-injection for priming the catalyst (7) and a second operating mode with post-injection for producing an exothermic reaction by the primed catalyst (7). Said system comprises a temperature sensor (18) arranged in the exhaust line (3) upstream of the catalyst (7), and the control means (8) are capable of switching the feeding means (8) between the first and second operating modes based on said sensed temperature.

Abstract: The invention concerns a system for assisting regeneration of a particulate filter (6) arranged in an exhaust line (3) of a diesel engine (1) associated with a oxidizing catalyst (7), the engine (1) being equipped with feeding means (8) for injecting into the cylinders thereof at least one post-injection. Said system comprises means (17) for controlling the feeding means (8) in accordance with a strategy for regenerating the filter (6) wherein the feeding means (8) are switched between a first operating mode with post-injection for priming the catalyst (7) and a second operating mode with post-injection for producing an exothermic reaction by the primed catalyst (7). Said system comprises a temperature sensor (18) arranged in the exhaust line (3) upstream of the catalyst (7), and the control means (8) are capable of switching the feeding means (8) between the first and second operating modes based on said sensed temperature.

Abstract: 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.