Method and system for correcting errors in fueling commands

A system for correcting fueling commands, the system comprising:

• an engine and/or generator including one or more fuel control valves;
• a pressurized fuel supply configured to provide fuel to the engine and/or generator;
• and
• a fuel correction controller in operative communication with the engine and/or generator and the pressurized fuel supply, the thel correction controller configured to:
• perform an off-line calibration of the engine and/or generator operating in a steady-state mode by determining a plurality of accuracy errors associated with a fueling rate based, on a plurality of measurements associated with a lambda sensor, wherein the deteimining of the plurality of accuracy errors is based on a plurality of regressors that are partial derivatives of a fueling uncertainty model calculated with respect to the plurality of accuracy errors as provided by a developer of the engine prior to the off-line calibration;
• determine fueling rate correction data during on-line operation of the engine based on the plurality of accuracy errors that are determined during the off-line calibration;
• and
• control the one or more fuel control valves during the on-line operation of the engine using a corrected fueling command, wherein the corrected fueling command is based on the fueling rate correction data.

A fuel correction controller for correcting fueling commands, the fuel correction controller configured to:

• be in operative communication with an engine and/or generator that includes one or more fuel control valves and with a pressurized fuel supply configured to provide fuel to the engine and/or generator;
• perform an off-line calibration of the engine and/or generator operating in a steady-state mode by determining a plurality of accuracy errors associated with a fueling rate based on a plurality of measurements associated with a lambda sensor, wherein the determining of the plurality of accuracy errors is based on a plurality of regressors that are partial derivatives of a fueling uncertainty model calculated with respect to the plurality of accuracy errors as provided by a developer of the engine prior to the off-line calibration;
• determine fueling rate correction data during on-line operation of the engine based on the plurality of accuracy errors that are determined during the off-line calibration;
• and
• control the one or more fuel control valves during the on-line operation of the engine using a corrected fueling command, wherein the corrected fueling command is based on the fueling rate correction data.