Method and device for electrically controlling a valve actuator in an internal combustion engine

A method for electrically controlling a valve actuator in a 2-stroke or 4-stroke combustion engine, where the actuator comprises a first solenoid with a first plunger and a second solenoid with a second plunger, wherein said solenoids are arranged in series with each other, wherein the engine has at least one cylinder with at least one freely controllable engine valve comprising a valve disc with an associated valve stem and a valve spring arranged to keep the engine valve closed, wherein air is introduced, or exhaust gases are evacuated from, a combustion chamber past a lower part of the valve stem with the valve disc via at least one channel in the cylinder, wherein the method comprises:

• activating the valve actuator to open the engine valve by overcoming the closing force of said valve spring, wherein activating the valve actuator comprises activating both the first and the second solenoid during opening of the engine valve.