SUPERCHARGE PRESSURE CONTROL DEVICE, PRESSURE DETECTION DEVICE AND PRESSURE DETECTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a supercharge pressure control device capable of executing optimum supercharge pressure control by surely coping with change of atmospheric pressure due to change of altitude or the like while using a same sensor for measurement of atmospheric pressure and intake pressure or supercharge pressure.

SOLUTION: This supercharge pressure control device is provided with a pressure detection means 58 detecting supercharge pressure and atmospheric pressure by a pressure sensor 33 selectively connected to one of an intake pipe and atmosphere and a supercharge pressure control means 59 controlling supercharge pressure based on pressures detected by the pressure detection means 58. The pressure sensor is connected to atmosphere to detect atmospheric pressure when altitude changes and supercharge pressure is stable.

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