| 摘要 |
PROBLEM TO BE SOLVED: To appropriately correct the quantity of fuel supply in case of detecting plural data of the condition of the fuel to be supplied to an engine and correcting the quantity of fuel supply on the basis of the mean value of the obtained plural data by computing the mean value while weighing the last data in comparison with the former data. SOLUTION: When an engine is started, a control circuit 9 sets a counter, and detects the fuel condition Di. Continuously, the control circuit 9 determines whether the count is larger than the threshold value N1 or not, and in the case of NO, since the time passing after starting the engine is short, reliability of the fuel condition data Di is determined low, and this data Di is stored while discriminating it from the former data. On the other hand, in the case of YES, reliability of the data Di is determined high, and this data Di is stored while discriminating it from a new data. When the count (i) exceeds a threshold value N2, priority is given to the new fuel condition data in comparison with the former fuel condition data, and the mean value of the fuel condition data is obtained. Quantity of fuel injection is corrected while using a coefficient of correction based on the mean value.
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