Xinqun Gui - Naperville IL, US Steven Gravante - Westchester IL, US Shouxian Ren - Aurora IL, US Pranab Das - Naperville IL, US
International Classification:
F01N003/00 F01N003/02
US Classification:
060/285000, 060/295000, 060/297000, 060/311000
Abstract:
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.