| 摘要 |
When control conditions are satisfied, an A/F value is estimated from an average value of rotation speed Ne and an increasing rotation speed DELTANe calculated. The estimated A/F value as a base is obtained from the average value of the rotation speed Ne, and a correction value for the estimated A/F value is obtained from the increasing rotation speed DELTANe. Then, a fuel increment/decrement correction coefficient gamma and an air increment/decrement correction coefficient beta are calculated, and used in the control of A/F ratio toward a target A/F value based on a final estimated A/F value.
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