Method for dodger prevention in numerical control magnetic valve in injector for measurement of fuel in combustion engine in motor vehicle, involves applying voltage to solenoid coil, during post control to counteract magnetic field

The method involves applying voltage to a solenoid coil (8), during main control to produce a magnetic field. Another voltage is applied to the solenoid coil, during post control to produce counter current in the solenoid coil to counteract the magnetic field. The latter voltage is applied beyond a predetermined time period and till the counter current reaches a pre-determined current threshold value. The post control is implemented such that fast de-excitation of magnetic force of the magnetic valve (1) is enabled. The main control is implemented for opening the valve. Independent claims are also included for the following: (1) a computing unit for implementing the method for dodger prevention in the magnetic valve (2) an output stage that is aligned for the operation of the magnetic valve. Die Erfindung betrifft ein Verfahren zur Prellervermeidung bei einem Magnetventil mit einer Magnetspule und einem von dieser bewegten Anker, wobei wenigstens eine erste Spannung (U0, UH1, UH2) während einer Hauptansteuerung (H) an die Magnetspule angelegt wird, um ein Magnetfeld zu erzeugen, wobei wenigstens eine zweite Spannung (U1) während einer Nachansteuerung (N) an die Magnetspule angelegt wird, um einen Gegenstrom in der Magnetspule zu erzeugen, um dem Magnetfeld entgegenzuwirken.