CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

This control device for an internal combustion engine is applied to an internal combustion engine provided with: an exhaust gas processing device which is provided in the exhaust passage; and a burner device which, in order to increase the temperature of exhaust gas supplied to the exhaust gas processing device, is provided to the portion of the exhaust passage which is located upstream of the exhaust gas processing device. When the oxygen concentration of exhaust gas supplied to the burner device when there is a request for the operation of the burner device does not exceed predetermined required oxygen concentration, the control device executes incremental control for increasing oxygen concentration. Deficient oxygen concentration is corrected or compensated, and the combustion performance of the burner device is consistently ensured.