| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel injection control device for a multiple cylinder internal combustion engine, continuously keeping the amount of fuel injected appropriate after the actual amount of fuel injected is substantially converged by performing correction control between cylinders. Ž<P>SOLUTION: With respect to the correction control between the cylinders for determining a learned value of injection quantity according to a variation in rotation fluctuation in the expansion stroke of each cylinder and correcting the amount of fuel injected, first correction control between the cylinders for determining the learned value of the injection quantity with respect to each cylinder per one cycle of an engine is performed when the learned value of the injection quantity is larger than a predetermined value. After that, when the learned value of the injection quantity is smaller than the predetermined value, the correction control between the cylinders is switched to second correction control between the cylinders for determining the average value of the variation in the rotation fluctuation for every 10 cycles of the engine and determining the learned value of the injection quantity with respect to each cylinder based on the average value. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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