Internal combustion engine control method for diesel type motor vehicle, involves reducing section of air passage in inlet circuit, when regeneration phase of filtering unit and slowdown functioning state of engine is detected

摘要

The method involves reducing a section of air passage in an inlet circuit (7) in downstream of a closing unit (72) when regeneration phase of a filtering unit (62) and a slowdown functioning state of an engine is detected. A multiple injection of fuel is made in each cylinder (5) at each combustion cycle of the motor, where the multiple injection has a main injection to form a fueled mixture ready to be ignited and auxiliary injections to form a homogeneous premixture of fuel injected with air admitted in the cylinder.