Electronic key for vehicle

摘要

The key has a receiver (5) of radio information from a central station, a code communication device (8) for communicating with a vehicle communications device (10) and transmitting signals to the vehicle to activate or deactivate an immobilizer (13). A code controller (6) in the key manages a mobility account (7) which receives operating credits allocated by the central station by radio signal. Relevant events are booked to the account. The key can only deactivate the immobilizer if the bookings have not yet reached the credit level in the account.