| 摘要 |
PURPOSE: A control method for fuel injection is provided to supply an optimal fuel amount according to the fuel temperature and the engine RPM even in case that the fuel temperature is excessively raised according to the rise of the circumference temperature of a vehicle so that preventing the drop of the engine output and supplying the maximum engine output. CONSTITUTION: A control method for fuel injection includes the steps of: respectively calculating compensation values of the fuel amount based on a load variable according to the vehicle running conditions including the temperature and pressure of air inhaled into an engine, temperature of a coolant, and a fuel pressure(S130); measuring the temperature of the fuel and the RPM of the engine(S160); calculating the compensation value about the supplementary fuel amount corresponding to the measured fuel temperature and engine RPM(S170); selecting the minimum compensation value among the calculated compensation values of the fuel amount and calculating the final fuel amount by summing the selected minimum compensation value and the compensation value about the supplementary fuel amount(S180); and supplying fuel to the engine with an injector according to the calculated fuel amount(S190).
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