| 摘要 |
PROBLEM TO BE SOLVED: To correct a fuel increase quantity after starting, by determining an accurate rotational variation, by determining a rotational variation in an engine, only when an engine state and an operation state satisfy a predetermined starting time condition in the rotational variation in the engine, by determining a fuel property in starting by determining the rotational variation in the engine, without determining the fuel property by racing of an engine speed, for the purpose of solving the problem by this invention. SOLUTION: A fuel control device of the engine has an elapsed time measuring means 302 measuring elapsed time until a pulse signal from a crank angle sensor 16 becomes the predetermined pulse number when the engine water temperature falls within a predetermined range, a throttle valve is a closed state and a vehicle is stopped, and a correction means 304 correcting the elapsed time measured by the elapsed time measuring means 302, and controls a fuel injection quantity based on a variation parameter by calculating a rotational variation parameter of the engine with every explosion from the corrected elapsed time. COPYRIGHT: (C)2008,JPO&INPIT
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