Identification system for motor vehicle, has identification transmitter, and charging station for accumulator that is used as energy storage, where station is operated by on-board power supply voltage or household power supply system

摘要

The system has an identification transmitter (3), and a charging station (16) for a rechargeable accumulator (10) that is used as energy storage. The charging station is operated by on-board power supply voltage or a household power supply system. The accumulator is contactlessly recharged by a charging circuit (12) that is integrated into the transmitter, where the circuit has a secondary coil (8) that is fed by an external energy source (18). The secondary coil that charges the accumulator is arranged as an antenna for communication with an assigned receiving unit. An independent claim is also included for an identification transmitter for an identification system whose accumulator is contactlessly rechargeable by a charging circuit that is integrated into the identification transmitter.