CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

摘要

A control device of an internal combustion engine which can suppress the overshoot and undershoot of supercharging pressure and hunching in the internal combustion engine provided with first and second supercharging pressure regulating actuators capable of regulating the supercharging pressure of a turbosupercharger. The turbosupercharger (14) having a variable nozzle mechanism (14c) is mounted on a diesel engine (2). An electric motor (15) for assisting turbo-rotation is mounted on the turbosupercharger (14). An ECU (70) controls the variable nozzle mechanism (14c) so that an actual supercharging pressure detected by a supercharging pressure sensor (74) matches a target supercharging pressure. When the turbo-rotation is assisted by the electric motor (15), a feedback gain against the opening of a variable nozzle is reduced more than that in a case when the turbo-rotation is not assisted.