Particle filter regeneration controlling method for motor vehicle, involves regulating temperature of lower wall to recommended set value of evaporation of fuel injected by injector by controlling delayed injection of fuel in chamber

摘要

The method involves injecting fuel in exhaust gas by an auxiliary injector (6) located on an exhaust gas evacuation line (3) in upstream of a particle filter (8) made of catalytic oxidation material. The temperature of a lower wall (35) of the line is regulated to a recommended set value of evaporation of fuel injected by the injector by controlling delayed injection of fuel in a combustion chamber (30) of an internal combustion engine (1) using evacuation line sections (31, 32). The temperature is determined by a temperature sensor (13) located on the wall between the injector and the filter. An independent claim is also included for a device for controlling the regeneration of a particle filter and an oxidation catalyst placed on an exhaust gas evacuation line of an internal combustion engine.