| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection control device which reduces the number of injection monitor signals and obtains an accurate monitor signal even in a region where injection is overlapped. SOLUTION: In a fuel injection control device 100 which opens a valve element by feeding an inrush current to an electromagnetic coil provided in an injector mounted to each cylinder, and controls such that the valve opened state is held by feeding a holding current, the control device is provided with a first signal generating circuit 34 to generate a first monitor signal for monitoring injection based on a current flowing to an electromagnetic coil 51 every cylinder; and a second signal generating circuit 35 to take a logical addition of the first monitor signal in a period in which an inrush current flows to the electromagnetic coil 51 and generate a second monitor signal. At this time, the second signal generating circuit 35 takes a logical product of an inrush signal for specifying an inrush current and the first monitor signal and generates the first monitor signal in a period in which an inrush current flows to an electromagnetic coil 14. COPYRIGHT: (C)2006,JPO&NCIPI
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