Control device for an internal combustion engine with supercharger

Control apparatus for a supercharged internal combustion engine, comprising: means for determining a target torque which is to be outputted to the charged internal combustion engine; means for determining a target air quantity from the target torque; means for determining a target boost pressure from the target torque; means for controlling actuation of an actuator for an air-quantity control according to the target air quantity; and means for controlling actuation of an actuator for a boost-pressure control according to the target boost pressure, wherein: the target torque obtaining means, the target torque by using a low frequency torque component, which is adjusted at any time based on a torque demand from a driver, and a high frequency torque component, which is adjusted as necessary for a specific type of a vehicle control forms, ; and target boost pressure-detecting means is the target boost pressure using a pressure component corresponding to the low frequency component of torque when the target torque includes only the low-frequency torque component, and target boost pressure-detecting means to the target boost pressure using the pressure component corresponding to the low-frequency torque component and a pressure component corresponding to a specified torque component having a value equal to or greater than a maximum amplitude of the high frequency torque component that forms when the target torque the contains low frequency torque component and the high frequency torque component.