Method and device for controlling the authorization of charging operations of electrically operated vehicles

摘要

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.

主权项

1. A method for controlling an authorization of charging operations of an electrically operated vehicle, comprising:
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 the total charging current to a sum of charging-current data of charging-current requests from one or more of the vehicles that are connected to the electric coupler sockets; and switching off at least one of the electric coupler sockets when the total charging current exceeds the sum; wherein the connecting of the vehicle to be charged including includes transmitting authorization information from the vehicle to the control unit, and the authorization information being is 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 is provided by modulating an alternating current signal upon transmitted through the power line, the alternating current signal representing one of the authorization request or the charging-current request, wherein when the total charging current exceeds the sum, the control unit individually transmits switching-off commands to the vehicles, the vehicles interrupt the charging operation upon receiving the switching-off commands, the control unit compares after each instance of interruption, a reported charging current of the vehicle switched off via the switching-off command being subtracted from the sum, and one of:
(i) on the basis of the individual instances of switching off, the control unit, by comparing the total charging current to the sum of the reported charging currents, detects at least one vehicle that is receiving charging current from the electric coupler socket in spite of one of a lack of authorization or a received switching-off command, and the control unit one of induces an output of a signal of the at least one vehicle or switches off the electric coupler socket to which the at least one vehicle is connected, by transmitting an interruption signal to a switching module of the electric coupler socket, or(ii) on the basis of the individual instances of switching off, the control unit, by comparing the total charging current to the sum of the signaled charging currents, detects at least one vehicle that is authorized to draw current and interrupts a charging operation due to the received switching-off command, and the control unit induces an output of a signal of this vehicle.