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AssigneeGeneral Motors Corporation
InventorsDaniel F. Kabasin, Donald D. Stoltman, William H. Pettit, Kenneth J. Dauer, James F. Burkhard
Estimating the term…
Control of a fuel rate and an air rate delivered to an exhaust gas heater over successive control periods by determining and periodically updating a desired heater air quantity and a desired heater air/fuel ratio, by commanding an air rate in accord with the desired heater air quantity, by adjusting the commanded air rate in accord with a sensed actual air rate, and by commanding a fuel quantity in accord with the desired heater air/fuel ratio and the sensed actual air rate or the desired heater air quantity. A quantity of excess fuel is purged from the system at the end of a control period and provided in usable form to the engine. Compensation for fuel residue in the system is made at the start of subsequent control periods.
A method for controlling an air rate at which air is passed through an air line and a fuel rate at which fuel is passed through a fuel line to an exhaust gas heater for heating internal combustion engine exhaust gas during heater operating periods, comprising the steps of:
Dependencies are inferred from the claim text.