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DE-102024210773-A1 - System for charging electric vehicles and method for charging electric vehicles

DE102024210773A1DE 102024210773 A1DE102024210773 A1DE 102024210773A1DE-102024210773-A1

Abstract

The invention relates to a system (300) for charging electric vehicles (150, 250), comprising at least one first device (100) and at least one second device (200), wherein the at least one first device (100) has at least one central control unit (310), wherein the at least one central control unit (310) is configured to control the charging of at least one first electric vehicle (150) by means of the at least one first device (100) and the charging of at least one second electric vehicle (250) by means of the at least one second device (200), in that the at least one central control unit (310) communicates with at least one first charge controller (110) of the at least one first device (100) and with at least one second charge controller (210) of the at least one second device (200) such that a charging power for charging the respective electric vehicle (150, 250) is regulated by the respective charge controllers (110, 210), and a method for charging electric vehicles. (150, 250).

Inventors

  • Jan Giebel
  • Adam Kania

Assignees

  • VOLKSWAGEN AKTIENGESELLSCHAFT

Dates

Publication Date
20260513
Application Date
20241108

Claims (10)

  1. A system (300) for charging electric vehicles (150, 250), comprising at least one first device (100) and at least one second device (200), wherein the at least one first device (100) has at least one central control unit (310), wherein the at least one central control unit (310) is configured to control the charging of at least one first electric vehicle (150) by means of the at least one first device (100) and the charging of at least one second electric vehicle (250) by means of the at least one second device (200), by communicating with at least one first charge controller (110) of the at least one first device (100) and with at least one second charge controller (210) of the at least one second device (200) in such a way that a charging power for charging the respective electric vehicle (150, 250) is regulated by the respective charge controllers (110, 210).
  2. Annex (300) according to Claim 1 , characterized in that each device (100, 200) has at least one battery (120, 220) for providing the charging power for charging the respective electric vehicle (150, 250).
  3. Annex (300) according to Claim 1 or 2 , characterized in that each device (100, 200) of the system (300) is mobile.
  4. System (300) according to one of the preceding claims, characterized in that the at least one first device (100) has at least one central human-machine interface (320), wherein the at least one central human-machine interface (320) is configured to receive at least one first input (E1) for charging the at least one first electric vehicle to communicate the device (150) and at least one second input (E2) for charging the at least one second electric vehicle (250) to the at least one central control unit (310), wherein the at least one central control unit (310) generates at least one control signal (C1, C2) depending on the respective input (E1, E2) and outputs it to the respective charge controller (110, 210).
  5. System (300) according to one of the preceding claims, characterized in that the at least one first device (100) has at least one central payment device (330), wherein the at least one central control device (310) is configured to bill for electricity provided for charging at the respective device (100, 200) via the at least one central payment device (330).
  6. System (300) according to one of the preceding claims, characterized in that the at least one first device (100) has at least one central communication device (340), wherein the at least one central communication device (340) is configured to provide both internal communication between the at least one central control device (310) and at least one component (110) of the at least one first device (100) and external communication between the at least one central control device (310) and at least one component (210) of the at least one second device (200).
  7. Plant (300) according to one of the preceding claims, characterized in that the plant (300) comprises a plurality of second devices (200), wherein communication between the at least one first device (100) and the plurality of second devices (200) takes place serially.
  8. System (300) according to one of the preceding claims, characterized in that the at least one second device (200) has at least one signaling device (230) which indicates an occupancy state of the at least one second device (200) depending on at least one control signal (C1, C2) of the at least one central control device (310).
  9. System (300) according to one of the preceding claims, characterized in that the at least one central control unit (310) is configured to communicate with at least one external unit (400), wherein at least one first input (E1) for charging the at least one first electric vehicle (150) and/or at least one second input (E2) for charging the at least one second electric vehicle (250) is communicated from the at least one external unit (400) to the at least one central control unit (310), wherein the at least one central control unit (310) generates at least one control signal (C1, C2) depending on the respective input (E1, E2) and outputs it to the respective charge controller (110, 210).
  10. Method for charging electric vehicles (150, 250), comprising the steps of: - charging (S1) at least one first electric vehicle (150) using at least one first device (100) and - charging (S2) at least one second electric vehicle (250) using at least one second device (200), wherein the method is carried out by a system according to one of the Claims 1 until 9 is executed.

Description

The invention relates to a system for charging electric vehicles and a method for charging electric vehicles. Charging stations are frequently used in public and private charging infrastructure for electric vehicles. At a single location, such as a rest area, company premises, or parking garage, several charging stations are typically provided side by side. Each charging station usually includes components such as a terminal that allow for individual initiation and payment of a charging process. While this increases customer convenience, as customers can initiate and pay for the charging process at their respective charging station, it also leads to higher product costs, since the components must be installed in each charging station. The technical problem is to create a system and a process for charging electric vehicles that can be operated with lower product costs. The solution to the technical problem is provided by the articles with the features of the independent claims. Further advantageous embodiments of the invention are described in the dependent claims. A system for charging electric vehicles is proposed, comprising at least one first device and at least one second device, wherein the at least one first device has at least one central control unit, wherein the at least one central control unit is configured to control the charging of at least one first electric vehicle by means of the at least one first device and the charging of at least one second electric vehicle by means of the at least one second device, by communicating with at least one first charge controller of the at least one first device and with at least one second charge controller of the at least one second device in such a way that a charging power for the charging of the respective electric vehicle is regulated by the respective charge controllers. Furthermore, a procedure for charging electric vehicles is proposed, comprising the following steps: - Charging at least one first electric vehicle using at least one first device and - Charging at least one second electric vehicle using at least one second device, wherein the method is carried out by a system according to an embodiment described in this disclosure. The method can, for example, be executed as a control program on which at least one central control unit is executed. The features, technical effects and advantages explained in this disclosure for the plant naturally also apply to the process and vice versa. The system has the advantage that not every device in the system requires a separate control unit for managing electric vehicle charging; instead, a central control unit handles this task. Ideally, only one central control unit is needed to manage charging processes across all devices in the system. This reduces product costs. Furthermore, the central control unit does not need to manage loads, as the charging power is determined independently by the respective charge controller in each device. In particular, the system can be modularly expanded to include numerous additional devices, with charging still controlled by the central control unit. The first device can be called the primary device, since it contains the central control unit. The at least one second device can be called the secondary device, since it does not contain a central control unit. The system can, in particular, comprise a plurality of secondary devices. These plurality of secondary devices can, for example, be arranged in a star-shaped configuration around the first device. Each of the devices – i.e., both the first device and at least one second device – can have its own power grid connection and/or its own voltage source to provide the charging power for charging the respective electric vehicle. Each device can, for example, be configured as a charging station. Each device can have at least one charging point. The charging point can be, for example, a charging socket and/or a charging plug. The charging point can also be referred to as a charging point. For example, the first and/or second electric vehicle is connected to the respective device via the charging point. In particular, each device can have at least one It should have its own current measuring device, such as a DC meter, to determine the amount of current supplied. The central control unit can be designed as or comprise a microcontroller. The central control unit can also be referred to as the main control unit or "main controller." The central control unit can communicate with the respective charge controller, for example, via at least one communication device. This will be explained in more detail below. Charging using the at least one first device and/or charging using the at least one second device can be controlled by communicating the release of a device, in particular a charging point, the start of a charging process, and/or the stop of a charging process to the respective charge controller. The central control unit can be conf