Patent ID: 6886531

Claim:
A control apparatus for an internal combustion engine comprising: an electronic throttle valve provided in an intake system of said internal combustion engine; an intake air amount detecting section that detects an amount of intake air sucked into said internal combustion engine; an accelerator opening detecting section that detects, as an accelerator opening, an amount of operation of an accelerator pedal of a vehicle on which said internal combustion engine is installed; a speed sensor that detects a running speed of said vehicle; a target opening calculating section that calculates a target opening of said electronic throttle valve from said accelerator opening; a throttle opening detection section that detects a throttle opening of said electronic throttle valve; and an electronic control section that drives said electronic throttle valve so as to make said throttle opening coincide with said target opening; wherein said target opening calculating section includes a correction factor calculating section that calculates a correction factor for correcting said target opening; and said correction factor calculating section sets an arithmetic calculation gain of said correction factor corresponding to characteristics between said throttle opening and said amount of intake air in such a manner that arithmetic calculation gains, being mutually different from each other, are set for ranges of said characteristics different from each other.