Patent ID: 8402952

Claim:
Method for controlling a fuel injection system of an internal combustion engine, the fuel injection system comprising a high-pressure pump associated with a quantity control valve having a solenoid valve electromagnetically actuatable by a coil for supplying fuel, the quantity control valve controlling a quantity of fuel supplied by the high-pressure pump and the coil of the solenoid valve having a first current value applied thereto, in order to close the same for supplying fuel to the high-pressure pump wherein the first current value is reduced to a second current value when the solenoid valve is closing, such that radiation of audible sound arising from the closing of the solenoid valve during operation of the internal combustion engine is at least partially reduced; wherein the second current value corresponds to a minimum current value, with which a complete closing of the solenoid valve can be achieved during the operation of the internal combustion engine.