Method for controlling regeneration within an after-treatment component of a compression-ignition engine

A system for controlling regeneration within an after-treatment component comprising:

• a regeneration controller having a processor coupled to a memory storage device, the regeneration controller being configured to:
• determine a value of a first parameter associated with an exhaust stream passing through the after-treatment component;
• determine a rate of change of the first parameter;
• compare the rate of change of the first parameter against a first predetermined threshold value to produce a first comparison result;
• select a first soot model mask associated with the first parameter based on the first comparison result;
• calculate a filtered first parameter value based on the value of the first parameter, the rate of change of the first parameter, and a predetermined filtering relationship for the first parameter that is based on the first soot model mask associated with the first parameter;
• calculate an estimate of accumulated particulate matter in the after-treatment component based, at least, on a soot accumulation model and the filtered first parameter value;
• compare the estimate of accumulated particulate matter in the after-treatment component to a predetermined threshold associated with the after-treatment component;
• and
• initiate a remedial action when the estimate of accumulated particulate matter in the after-treatment component exceeds the predetermined threshold.