| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device of an engine with a turbocharger, enabling an intake air amount to be recognized with high accuracy even in deceleration.SOLUTION: A control device 50 of an engine with a turbocharger is provided which includes a bypass passage 42 bypassing a compressor 18, and a bypass valve 43 for opening and closing the passage 42. The control device 50 further includes an air flow sensor 36 disposed upstream of the compressor 18, intake air amount calculating means 53 for calculating an intake air amount on the basis of an operating state of the engine, and intake air amount setting means 54 for setting one of the air amount detected by the air flow sensor 36 and the air amount calculated by the intake air amount calculating means as the intake air amount. The intake air amount setting means 54 sets the detected air amount in a normal time, and switches the setting from the detected air amount to the calculated air amount when at least one of change amounts of the detected air amount and the calculated air amount is over a threshold value for switching the setting. |
