| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine, for reducing pumping loss to improve fuel economy, in an internal combustion engine in which a throttle valve for each cylinder is disposed to an independent intake pipe. SOLUTION: This control device comprises: the independent intake pipes 5a to 5d supplying intake air to each cylinder 1a to 1d of the internal combustion engine 1; individual intake amount control means 9a to 9d disposed to the independent intake pipes 5a to 5d to control an effecting intake passage cross-sectional area for each cylinder; fuel injection valves 7a to 7d controlling a fuel supply amount for each cylinder; and a control means 14 calculating the fuel injection amounts with respect to a plurality of cylinders for each cylinder to control the fuel injection valves 7a to 7d, and calculating intake amounts with respect to the cylinders for each cylinder to control the individual intake amount control means 9a to 9d. The control of the individual intake amount control means 9a to 9d by the control means 14 is set so that the cross-sectional area of the intake passage is large during a predetermined period in which intake valves 6a to 6d of the corresponding cylinders are closed, and the cross-sectional area is small when the intake valves 6a to 6d are opened. COPYRIGHT: (C)2005,JPO&NCIPI
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