Steuerungssystem für die Regenerierung eines Partikelfilters für den Auspuff eines Dieselmotors

摘要

Has control unit (17) for, exhaust gas recycling unit (4) for turbo-compressor and /or fuel feed system designed to trigger a filter regeneration phase by combustion of the trapped filter particles, in which multiple fuel injection is triggered in the engine cylinders during their ignition phase. The recycling unit includes a proportional electro-valve driven by the control unit as a function of signals from a Lambda sensor integrated in the exhaust (3). The diesel engine is linked to various systems amongst which are: engine air admission unit (2); exhaust gas recycling unit (4) which recycles the gas as function of its oxygen level at the moment of filter regeneration; turbo-compressor; oxidization catalyzer (6) fitted in front of the particle filter (7) in the exhaust pipe; common fuel feed unit (8) for engine cylinders, including electrically controlled injectors (9,10,11,12); a unit (16) which adds an additive to the fuel, designed to be deposited on the particle filter to lower the combustion temperature of the trapped particles; a data acquisition system (20,21,22,23,24) which collects data relative to different engine, and its associated parts, operating parameters; a unit (17) which controls the operation of the air admission unit, recycling unit, turbo-compressor and/or fuel feed.