Honda Motor Co., Ltd.
SUPERCHARGING PRESSURE CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Abstract:

The disclosure provides a supercharging pressure control device of an internal combustion engine capable of effectively suppressing a failure of a device such as an internal combustion engine or a supercharger when a variable nozzle is stuck. A supercharging pressure control device of an internal combustion engine according to the disclosure includes: a supercharger (turbocharger) which is provided in the internal combustion engine (engine) and controls a supercharging pressure by changing an opening degree of a variable nozzle; a rotation speed acquisition part (rotation speed sensor) which acquires a rotation speed (engine rotation speed) of the internal combustion engine; and an opening degree limiting part (ECU) which limits the opening degree of the variable nozzle based on the rotation speed when the acquired rotation speed exceeds a predetermined value.