Vibration damper and motor vehicle

A vibration damper comprising:

• a piston;
• a piston rod fastened to the piston;
• a working chamber divided by the piston into a first working chamber and second working chamber;
• a generator drivable by a movement of the piston rod, wherein a damping force of the vibration damper is influenced by energization of the generator;
• and
• an energizable component part that is configured to short-circuit windings of the generator when unenergized and cancels the short circuit when energized,
• wherein the energizing of the energizable component part can be stopped depending on at least one of an operating parameter and a driving parameter.

A motor vehicle comprising:

• at least one vibration damper comprising:
• a piston;
• a piston rod fastened to the piston;
• a working chamber divided by the piston into a first working chamber and second working chamber;
• a generator drivable by a movement of the piston rod, wherein a damping force of the at least one vibration damper is influenced by energization of the generator;
• and
• an energizable component part that is configured to short-circuit windings of the generator when unenergized and cancels the short circuit when energized.