| 摘要 |
PROBLEM TO BE SOLVED: To accurately calculate an acceleration correction amount in response to minute change of throttle opening. SOLUTION: First and second change rate calculating parts 25 and 26 calculate throttle opening change rates DθTHA and DθTHB in first and second periods (the second period > the first period) just before every expected crank rotation angles. A maximum updating part 28, based on a comparison result in a comparing part 27, updates a stored value in a maximum value storing part 29 with a larger one of past and present maximum throttle opening change rates DθTH. A plurality of times of points read from a point calculating part 30 based on the maximum throttle opening change rates DθTH are summed, and then inputted to a correction value calculating part 33. When the summed value of the points is a predetermined value or more, an acceleration correction amount calculated by the correction value calculating part 33 based on the maximum value of the throttle opening change rates is supplied to a fuel injection time calculating part 34, and a fuel injection time Ti including the acceleration correction amount is calculated.
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