Patent ID: 8074630
Filing Date: 2011-12-13
Classification: F02B,F02D,F02M,Y02T

Abstract:
1. An internal combustion engine control device applied to an internal combustion engine having a cylinder, an air-intake passage through which air is supplied to the cylinder, an exhaust gas passage through which exhaust gases are emitted from the cylinder, an external EGR regulating device for regulating an external EGR amount of exhaust gases partially recirculated from the exhaust passage to the air-intake passage, and an internal EGR regulating device for regulating an internal EGR amount of combusted gases partially remaining in the cylinder, the internal combustion engine control device comprising: external and internal EGR ratio control means for controlling operations of the external EGR regulating device and the internal EGR regulating device for thereby controlling a ratio between the external EGR amount and the internal EGR amount; and surrounding atmospheric pressure acquiring means for acquiring a surrounding atmospheric pressure around the internal combustion engine; wherein the external and internal EGR ratio control means variably controls the ratio depending on the acquired surrounding atmospheric pressure.