The control device of the fuel injection device

PROBLEM TO BE SOLVED: To improve irregularities in flow rate characteristics of a fuel injection device.SOLUTION: A control device for a fuel injection valve for performing a controlling operation by applying a driving voltage against each of solenoids of a plurality of fuel injection valves to flow its driving current is provided with a driving current control part for controlling to open a first fuel injection valve by feeding a driving pulse longer than a driving pulse fed before performing the filtering processing in respect to the first fuel injection valve having an output peak time in the filtering processing faster than that of another fuel injection valve when a time difference between the two inflection points appearing at the solenoid driving voltage after valve closing is defined as [Tb2-Tb1] and a gain at a specified frequency f0 larger than 0 and a filtering processing of the driving voltage after valve closing is performed by a filter having f0 set to be smaller than 1/[Tb2-Tb1] and when the same fuel is discharged out.SELECTED DRAWING: Figure 13