| 摘要 |
PURPOSE:To prevent the generation of variation of revolution by accumulating the deviation of the engine revolution speed in idling and obtaining a new learning value by adding the learning value at present with said integration value and memorizing the limit value as a learning value when said learning value exceeds the limit value. CONSTITUTION:In a computer 76 for controlling an engine, an integration means which receives the difference between the actual revolution speed detected by an engine revolution speed sensor 44 and an aimed revolution speed set by a setting means according to the output of a throttle position sensor 36 and accumulates said difference is installed. Further, a memory means which adds the learning value at present with the integration value and memorizes the result as a new learning value is installed. Further, a learning value changing means which memorizes the limit value of the sum of the integration value and the memorized learning value as a new learning value is installed. Then, the mixed gas control signal corresponding to the value which is obtained by adding the aimed revolution speed, integration value, and the learning value is outputted into the stepping motor 18a of an idle control valve from a mixed gas feed control means.
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