Emissions control system for an engine system

An engine system comprising:

• an engine;
• a control system disposed in communication with the engine, the control system comprising:
• an input device configured to provide a plurality of different user-selectable operational modes, including a zeroth operational mode, a first operational mode, and a second operational mode, wherein each operational mode corresponds to a predetermined emission regulation standard, the predetermined emission regulation standards being different for the respective operational modes, and each of the predetermined emission regulation standards corresponding to a maximum acceptable exhaust emission output amount for the engine system;
• and
• a control module communicably coupled to the input device, the control module configured to optimize engine fueling and selectively optimize reductant dosing based on the operational mode selected from the plurality of operational modes,
• wherein in response to a selection of one of the operational modes at the input device, the control module is configured to activate one of a plurality of pre-defined engine fueling maps and selectively activate one of a plurality of pre-defined reductant dosing maps based on the selected operational mode such that during subsequent operation of the engine system, the engine system is controlled so as to comply with the selected operational mode and the corresponding predetermined emission regulation standard, and
• wherein the control module is operative such that:
• when the zeroth operational mode is selected at the input device, the control module activates a first pre-defined engine fueling map of the plurality of pre-defined engine fueling maps, and switches OFF a reductant dosing system,
• when the first operational mode is selected at the input device, the control module activates a second pre-defined engine fueling map of the plurality of pre-defined engine fueling maps, and activates a first pre-defined reductant dosing map of the plurality of pre-defined reductant dosing maps, and
• when the second operational mode is selected at the input device, the control module activates a third pre-defined engine fueling map, and activates a second pre-defined reductant dosing map of the plurality of reductant dosing maps.

A method for regulating emissions from an engine system to comply with one of a plurality of emission regulation standards, the method comprising:

• selecting, using an input device, an operational mode from a plurality of different operational modes, including a zeroth operational mode, a first operational mode, and a second operational mode, wherein each operational mode corresponds with a predetermined emission regulation standard from the plurality of emission regulation standards, the predetermined emission regulation standards being different for the respective operational modes, and each of the predetermined emission regulation standards corresponding to a maximum acceptable exhaust emission output amount for the engine system;
• optimizing, using a control module, engine fueling based on the selected operational mode, said optimizing including activating a pre-defined engine fueling map corresponding to the selected operational mode from among a plurality of pre-defined engine fueling maps;
• and
• selectively optimizing, using the control module, reductant dosing based on the selected operational mode, said selectively optimizing including selectively activate a pre-defined reductant dosing map corresponding to the selected operational mode from among a plurality of pre-defined reductant dosing maps,
• wherein said optimizing and said selectively optimizing are such that
• during subsequent operation of the engine system, the engine system is controlled so as to comply with the selected operational mode and the corresponding predetermined emission regulation standard,
• when the zeroth operational mode is selected at the input device, said activating activates a first pre-defined engine fueling map of the plurality of pre-defined engine fueling maps, and said selectively optimizing switches OFF a reductant dosing system,
• when the first operational mode is selected at the input device, said optimizing activates a second pre-defined engine fueling map of the plurality of pre-defined engine fueling maps, and said selectively optimizing activates a first pre-defined reductant dosing map of the plurality of pre-defined reductant dosing maps, and
• when the second operational mode is selected at the input device, said optimizing activates a third pre-defined engine fueling map, and said selectively activating activates a second pre-defined reductant dosing map of the plurality of reductant dosing maps.