Charging station for electric vehicles as well as interface device in such a charging station and method for operating a charging station
Provided is a charging station for electric vehicles. The charging station includes a charge control circuit designed to control a charging process of an electric vehicle at the charging station, a communication module having a charge control interface designed for communication with the charge control circuit, and an operator interface designed for communication with a control centre external to the charging station. A first protocol is implemented in the operator interface for communication with the control centre. Improved interoperability is ensured by providing an interface device arranged at the operator interface in the charging station. This interface device communicates with the operator interface by means of the first protocol and with the external control centre by means of a second protocol which is different from the first protocol.
1. A charging station for electric vehicles comprising:
a charge control circuit arranged to control a charging process of an electric vehicle at the charging station,
a communication module having a charge control interface arranged for communication with the charge control circuit and an operator interface arranged for communication with a control centre external to the charging station, wherein a first protocol is implemented in the operator interface for communication with the control centre,
wherein an interface device arranged at the operator interface is provided in the charging station, the interface device communicating with the operator interface by means of the first protocol and with the external control centre by means of a second protocol which is different from the first protocol.
2. The charging station of claim 1 , wherein the interface device has at least two sets of protocol parameters such that one of different second and/or first protocols is assigned to each set of protocol parameters.
3. The charging station of claim 2 , wherein the interface device is arranged to receive a set of protocol parameters, in particular from the control centre.
4. The charging station of claim 1 , wherein the interface device has a memory of a first and/or of a second protocol, wherein the memory can be configured in particular by the control centre.
5. The charging station of claim 1 , wherein
the interface device has a wireless interface, wherein the wireless interface is designed for wireless communication with the control centre, in particular via a cellular mobile communications network, and/or in that
the interface device is arranged to receive an identification module for a wireless communications network, in particular a cellular mobile communications network, and/or in that
the interface device is arranged for secure communication of measurement data from a consumption meter to the control centre.
6. The charging station of claim 1 , wherein
the interface device communicates with the operator interface via the Open Charge Point Protocol (OCPP), and in that the interface device communicates with the control centre via an operator-specific protocol, or in that
the interface device communicates with the operator interface via an operator-specific protocol, and in that the interface device communicates with the control centre via the Open Charge Point Protocol (OCPP).
7. The charging station of claim 1 , wherein a chronological order of incoming commands in relation to outgoing commands varies in the interface device.
8. The charging station of claim 1 , wherein the interface device has a connection to a payment terminal, in particular in that the payment terminal communicates with the connection via at least one of the protocols ep2, ZVT, ISO8583 or APACS.
9. The charging station of claim 8 , wherein the interface device receives a payment signal from the payment terminal, in that the interface device negotiates a charge disconnection with the control centre, and in that the interface device subsequently exchanges a release signal with the operator interface.
10. An interface device comprising:
a first connection arranged for communication with an operator interface of a communication module of a charging station arranged for communication with a control centre external to the charging station, wherein a first protocol is implemented in the operator interface,
a second connection arranged for communication with the external control centre via a second protocol which is different from the first protocol.
11. A method for operating a charging station, comprising:
a charging process of an electric vehicle is controlled at the charging station, wherein charge control commands are exchanged with a charge control interface of a communication module to control the charging process and charge control commands are received by the communication module at an operator interface in a first protocol,
wherein the charge control commands of the operator interface are exchanged with an interface device arranged in the charging station in the first protocol, and in that charge control commands are exchanged by the interface device with an external control centre in a second protocol which is different from the first protocol.