Patent ID: 8739760
Filing Date: 2014-06-03
Classification: F02B,F02D,F02M,Y02T

Abstract:
1. A control system of an internal combustion engine comprising: a first fuel injection valve that injects fuel into a cylinder of the internal combustion engine; a second fuel injection valve that injects fuel into an intake port of the internal combustion engine; a throttle valve that is arranged in an intake passage of the internal combustion engine; an EGR passage that introduces an EGR gas from an exhaust passage of the internal combustion engine to the intake passage at a location downstream of said throttle valve; an EGR valve that is arranged in the EGR passage; an obtaining unit that obtains an amount of intake air in the internal combustion engine; a determination unit that determines, based on a cylinder injection ratio which is a ratio of an amount of fuel injected from said first fuel injection valve to a total amount of fuel injected from said first fuel injection valve and said second fuel injection valve, whether the amount of intake air is in an increasing tendency or in a decreasing tendency with respect to a change in the cylinder injection ratio, when said EGR valve is open; and a correction unit that corrects the amount of intake air obtained by said obtaining unit, according to a result of the determination of said determination unit.