Patent ID: 9168842
Filing Date: 2015-10-27
Classification: B60L,Y02T,Y04S

Abstract:
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: