ENGINE-OUT EMISSIONS CONTROLS

摘要

Unique apparatuses, methods, and systems including engine-out emissions controls are disclosed. One embodiment is a system including an internal combustion engine system including at least one fueling actuator and at least one air handling actuator and an electronic controller. The electronic structure may be structured to determine initial values for a plurality of combustion references, determine a plurality of target emissions values or ranges based upon the plurality of combustion references, determine errors between the emissions target values or ranges and sensed emissions information, determine correction factors and weighting factors for the combustion references, the weighting factors being based at least in part upon the errors between the between the emissions target values or ranges and sensed emissions information, selectably determine modified values for the combustion references based upon the correction factors and the weighting factors, and control operation of the at least one fueling actuator and at least one air handling actuator based upon the modified values.

主权项

1. A method comprising:
determining with a control system structured to control operation of an internal combustion engine system initial values for a plurality of combustion reference parameters; determining with the control system a first difference between an engine-out NOx value for the engine and a target engine-out NOx value and a second difference between an engine-out AFR value for the engine and a target engine-out AFR value; selecting with the control system which if any of the initial values to modify based upon the first difference and the second difference; determining with the control system respective modification values for each of the initial values which is selected; modifying with the control system each of the initial values which is selected based upon the one or more respective modification values to provide respective modified values; and determining with the control system one or more actuator control values based upon the values of the combustion reference parameters including the one or more modified values; and controlling with the control system at least one of an air handling system actuator and a fueling system actuator utilizing the one or more actuator control values.