| 摘要 |
A method of controlling the fuel rail pressure of a fuel injection system of an internal combustion engine is disclosed. A failure condition of a fuel rail pressure sensor is detected. A fuel rail pressure target value and an injector fuel output target value are determined on the basis of an internal combustion engine operating condition. A fuel pump output target value to be supplied into the fuel rail is determined. The fuel pump is driven in order to provide the fuel pump output target value. The fuel pump output target value is determined on the basis of the injector fuel output target value, and the fuel injector is energized for an energizing time target value determined on the basis of the fuel rail pressure target value and the injector fuel output target value. |
