International Engine Intellectual Property Company, LLC

Steven P Gravante

Xinqun Gui

Pranab K Das

Shouxian Ren

An engine control system ( ) of a diesel engine ( ) that powers a motor vehicle processes data in execution of a strategy (FIG. ) to provide control of both timing and duration of forced regeneration of a diesel particulate filter ( ). The overall strategy is a hybrid of model-based and closed-loop control strategies. Redundant elements of the strategy (FIG. ) determine when forced regeneration is called for. Forced regeneration is initiated by retarding the timing of the start of main fuel injection ( ). Fueling is then adjusted ( ) both to enhance catalytic action and to make the process transparent to a driver of the vehicle.

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Westchester, IL, United States of America

Steven P Gravante