| 摘要 |
PURPOSE: A method for controlling a fuel injection is provided to perform the fuel injection based on quality of fuel by inspecting a curve of an engine R.P.M when starting a vehicle engine. CONSTITUTION: When power is applied to a vehicle(S100), it is determined whether an engine start mode is satisfied by receiving a crank angle, and an engine R.P.M detected by a vehicle state detecting device(S110). After the engine is operated, if the engine start mode is satisfied, an engine control unit outputs a fuel injection signal for starting an engine. Then, the engine control unit determines a variation of the engine R.P.M. The engine control unit determines whether the variation of the engine R.P.M exceeds a predetermined reference level(S120). If the engine R.P.M exceeds the predetermined reference level, the engine control unit counts that how many times does the engine R.P.M increase and accumulates the engine R.P.M increase times(S130,140). If the variation of the engine R.P.M is below the predetermined reference level, the engine control unit accumulates only the number of the engine R.P.M.
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