METHOD AND DEVICE FOR CONTROLLING THE AUTHORIZATION OF CHARGING OPERATIONS OF ELECTRICALLY OPERATED VEHICLES
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Abstract
A method and a control unit for controlling the authorization of charging operations of electrically operated vehicles. A control unit is provided between a main terminal and a plurality of electric coupler sockets, which are connected to the control unit via a power line. A vehicle to be charged is connected to one of the electric coupler sockets, and the total charging current, which is conducted from the main terminal to the electric coupler sockets via the control unit, is measured. Charging-current requests are transmitted to the control unit by each of the vehicles connected to the electric coupler sockets, and the total charging current is compared to the sum of the charging currents reported by the vehicles connected to the charging outlets. The charging outlets are switched off if the total charging current exceeds the sum. The connecting of a vehicle to be charged includes transmitting authorization information from the vehicle to the control unit. The authorization information is compared to a list of authorized vehicles by the control unit, in order to check the authorization of the vehicle. The transmitting of charging-current requests and authorization information is provided by modulating an alternating current signal upon the power line, the alternating current signal representing the authorization request or the charging-current request.
16 Citations
23 Claims
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1-11. -11. (canceled)
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12. A method for controlling an authorization of charging operations of an electrically operated vehicle, comprising:
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providing a control unit between a main terminal and a plurality of electric coupler sockets which are connected to the control unit via a power line; connecting a vehicle to be charged to one of the electric coupler sockets; measuring a total charging current, which is conducted from the main terminal through the control unit to the electric coupler sockets; transmitting charging-current requests from each of the vehicles connected to the electric coupler sockets to the control unit; comparing a total charging current to a sum of charging currents of the vehicles that are connected to the electric coupler sockets; and switching off the electric coupler sockets when the total charging current exceeds the sum; wherein the connecting of a vehicle to be charged including transmitting authorization information from the vehicle to the control unit, and the authorization information being compared by the control unit to a list of authorized vehicles, in order to check the authorization of the vehicle, and the transmitting of charging-current requests and of authorization information being provided by modulating an alternating current signal upon the power line, the alternating current signal representing one of the authorization request or the charging-current request. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A control unit for controlling authorization of charging operations of an electrically operated vehicle, comprising:
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a main supply terminal; an output terminal; an interrupter unit connected between the main supply terminal and the output terminal; a communication unit connected to the output terminal and including a demodulator and a modulator to receive and send data from the output terminal as modulated signals; a current-measuring unit to measure a total current delivered at the output terminal; a data processing unit connected to the communication unit configured to store charging-current data in charging-current requests, which are transmitted by the modulated signals from the vehicles, in a charging-current amount memory of the control unit and to compare a sum of the charging-current data to a total current delivered at the output terminal, the data processing unit being configured to open the interrupter unit when the sum exceeds the total current delivered, and the data processing unit further being configured to receive authorization information and to one of compare the authorization information to a list of authorized vehicles that is stored in a memory of the control unit, or send the authorization information via a teletransmission interface to a remotely situated, authorization interrogation system that keeps the list. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification