CONTROL DEVICE FOR DIESEL ENGINE WITH SUPERCHARGER

摘要

PROBLEM TO BE SOLVED: To provide a control device for a diesel engine with a supercharger capable of more stably performing the control for suppressing the occurrence of misfire.

SOLUTION: As the control device for the diesel engine with the supercharger operated while performing supercharging by the supercharger 10, a supercharging pressure sensor 30 provided at an intake passage 2 where air compressed by the supercharger 10 passes and measuring a supercharging pressure is provided. The magnitude of the variation of the supercharging pressure measured by the supercharging pressure sensor 30 is monitored to perform the control for suppressing the occurrence of misfire. Specifically, a pilot injection amount is increased on condition that a difference between the supercharging pressure measured by the supercharging pressure sensor 30 and a target supercharging pressure is equal to or more than a threshold and that the measured supercharging pressure and a value of the pilot injection amount before the increase are within a range where the misfire may occur.

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