Positioning with a radio-based locking system

A system comprising:

• a vehicle-external induction charging unit comprising a primary coil and a low-frequency receiving antenna;
• and
• a vehicle comprising:
• a secondary coil configured for inductive charging of the vehicle at the induction charging unit via the primary coil,
• an automatic radio-based vehicle safety unit having at least two low-frequency transmitting antennas, and
• an access control device configured to:
• detect the spatial position of an access element relative to the vehicle based on the principle of electromagnetic distance and angle measuring between the transmitting antennas and a low-frequency receiver of the access element, and
• detect the location position of the induction charging unit relative to the vehicle based on the principle of electromagnetic distance and angle measuring between the transmitting antennas and the receiving antenna,
• wherein the access element is wirelessly coupled to the vehicle safety unit and is configured to permit user access to the vehicle when in the vicinity of the vehicle.