| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of highly accurately estimating a cylinder filled air amount for each cylinder. SOLUTION: The control device is equipped with a throttle passing air amount detecting means for detecting an amount of throttle passing air passing through a throttle valve, an intake pipe internal pressure detecting means for detecting pressure in an intake pipe part on the intake downstream side from the throttle valve, a cylinder filled air amount estimating means for estimating a cylinder filled air amount for each cylinder on the basis of the throttle passing air passing amount and the pressure in the intake pipe part, and an engine control means for controlling an internal combustion engine on the basis of the cylinder filled air amount for each cylinder estimated by the cylinder filled air amount estimating means. In addition, the device is equipped with a fluid inflow preventing means for preventing a fluid other than air passing through the throttle valve from flowing in the intake pipe part. The cylinder filled air amount estimating means executes the estimation when the fluid other than air passing through the throttle valve is prevented from flowing in the intake pipe part by the fluid inflow preventing means. COPYRIGHT: (C)2006,JPO&NCIPI
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