| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel injection control device capable of highly maintaining the controllability of fuel pressure even if abnormality occurs in a part of pumping systems of a fuel injection device capable of holding the pumping systems by installing plungers in a fuel pump. <P>SOLUTION: A pumping start angle for pumpinging a fuel by the fuel pump is calculated as the sum of a base angle AB mapped and calculated in a step S16 based on an instruction jetting amount and a target fuel pressure and a feedback correction amount FB calculated in step S18 based on the pressure difference between the detected fuel pressure and the target fuel pressure used for the valve opening start angle of a flow control valve for controlling the discharge amount. If an abnormality occurs in one of two flow control valves, the base angle AB is calculated based on a map for emergency in step S22 instead of step S16. <P>COPYRIGHT: (C)2008,JPO&INPIT |
