| 摘要 |
PURPOSE: A method for controlling a fuel injection in a diesel vehicle is provided to prevent power of the diesel vehicle from being lowered due to reduction of fuel by effectively controlling the amount of fuel when the performance of the diesel vehicle is lowered. CONSTITUTION: A fuel injection is controlled through a smoke map having mapping parameters, which are set based on fuel injection in each gear transmission step(S312). Then, a theoretical air/fuel ratio of a diesel vehicle is compared with a real air/fuel ratio of the diesel vehicle(S316). If the real air/fuel ratio of the diesel vehicle is a lean state as compared with the theoretical air/fuel ratio of the diesel vehicle, a minimum value of fuel for driving the diesel vehicle is compared with a real value of fuel for driving the diesel vehicle(S318). If the real value of fuel is larger than the minimum value of fuel, the fuel injection is controlled based on the real value of fuel(S320).
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