Navtej Singh - Lombard IL, US Adam C. Lack - Willow Springs IL, US Gregory Patrick Novak - Aurora IL, US
Assignee:
International Engine Intellectual Property Company LLC - Lisle IL
International Classification:
F01N 3/021
US Classification:
60274, 60311
Abstract:
A diesel engine () has an exhaust system () containing a diesel particulate filter () for trapping soot passing through the exhaust system as the engine operates. A trapped soot estimator () estimates soot trapped in the diesel particular filter by repeatedly executing an algorithm that calculates a data value for total soot trapped using Kalman filter processing () whose gain is controlled by at least one engine operating parameter.