| 摘要 |
A process for operating an electromagnetic actuator is provided, in particular to actuate a gas exchange lift valve of an internal combustion engine, with an armature, which is moved oscillatingly between two electromagnetic coils against the force of at least one return spring via an alternating supply of current to the electromagnetic coils. Whereby, during the so-called catch process as the armature approaches the coil that is subjected first to a current flow, the voltage applied to the coil catching the armature is reduced. To avoid unnecessary losses, a voltage curve is chosen with which an eddy current, calculated with a mathematical model, is minimized in the armature.
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