Stop control signal generating method for particle filter of spark ignition engine, involves generating control signal for controlling stopping of regeneration of filter when mass of soot increases or after expiration of predetermined time

摘要

The method involves evaluating a current value (4) representing a mass (M) of soot contained in a particle filter of a spark ignition engine during regeneration of the filter. A control signal for controlling implementation of the regeneration of the filter is generated, when the mass of soot is higher than a predetermined mass. Another control signal (1) for controlling stopping of the regeneration of the filter is generated using the value, when the mass increases or after expiration of a predetermined time (X) that is counted from the time of generation of the former control signal. An independent claim is also included for a device for generating a stop control signal that controls stopping of regeneration of a particle filter.