Charging system having at least one charging column for electric vehicles and method for charging one or more electric vehicles

Patent metadata

Field	Value
Publication number	US-10994628-B2
Application number	US-201916266291-A
Country	US
Kind code	B2
Filing date	Feb 4, 2019
Priority date	Feb 6, 2018
Publication date	May 4, 2021
Grant date	May 4, 2021

Abstract

A charging system includes a charging station, at least one first charging column, which has one or more charging plugs, a buffer store for storing energy, a mains connection for providing energy to the charging station and a switching apparatus, which is configured to conduct the flow of energy from the buffer store and/or from the mains connection to the first charging column. The system can also have a second charging column, which has one or more charging plugs. The switching apparatus is provided in such a way that it distributes the flow of energy from the buffer store and/or the mains connection over the two charging columns or conducts the flow of energy to one of the two charging columns. Furthermore, a method for charging one or more electric vehicles by the charging system at the charging station is described.

First claim

What is claimed is:

1. A charging system for charging an electric vehicle, comprising:
a charging station;
a first charging column, which has one or more charging plugs;
a second charging column, which has one or more charging plugs;
a buffer store for storing energy, wherein the buffer store has a first battery for the first charging column and a second battery for the second charging column and wherein the first battery is configured to be coupled to the second charging column and the second battery is configured to be coupled to the first charging column;
a mains connection for providing energy to the charging station; and
a switching apparatus, which is configured to conduct a flow of energy from at least one of the buffer store and the mains connection to the first charging column.

2. The charging system as claimed in claim 1 , wherein the switching apparatus is configured to distribute the flow of energy from at least one of the buffer store and the mains connection over the two charging columns or to conduct said flow of energy to one of the two charging columns.

3. The charging system as claimed in claim 1 , wherein the batteries of the buffer store are arranged in the charging columns of the charging system.

4. The charging system as claimed in claim 1 , wherein the switching apparatus is configured in such a way that a maximum energy of the charging system is provided at each of the two charging columns.

5. The charging system as claimed in claim 1 , wherein the two charging columns are operated by a respective power electronics system whose powers can likewise be interconnected by the switching apparatus.

6. The charging system as claimed in claim 1 , wherein a capacitance of the buffer store is configured in such a way that at least two electric vehicles can be supplied with energy.

7. The charging system as claimed in claim 1 , wherein the switching apparatus is configured to conduct a flow of energy from the buffer store and the mains connection to the first charging column.

8. A method for charging an electric vehicle at a charging system, wherein the charging system comprises (i) a charging station, (ii) a first charging column having one or more charging plugs, (iii) a second charging column having one or more charging plugs, (iv) a buffer store for storing energy, wherein the buffer store has a first battery for the first charging column and a second battery for the second charging column and wherein the first battery is configured to be coupled to the second charging column and the second battery is configured to be coupled to the first charging column, (v) a mains connection for providing energy to the charging station, and (vi) a switching apparatus, wherein the method comprises:
switching the switching apparatus of the charging system in order to conduct a flow of energy from at least one of the buffer store and the mains connection to the first charging column.

9. The method as claimed in claim 8 , wherein the switching apparatus of the charging system is switched in such a way that the flow of energy from at least one of the buffer store and the mains connection of the charging station is divided between the first charging column and the second charging column or is conducted to one of the two charging columns.

10. The method as claimed in claim 8 , wherein the switching step comprises switching the switching apparatus of the charging system in order to conduct a flow of energy from the buffer store and the mains connection to the first charging column.

Assignees

• Porsche Ag

Inventors

• Heyne Raoul
• Joslowski Florian

Classifications

• H02J2105/37

  exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] · CPC title

• H02J7/50

  acting upon multiple batteries simultaneously or sequentially · CPC title

• H02J3/322

  the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging · CPC title

• Y04S30/12

  Remote or cooperative charging · CPC title

• Y02T90/167

  Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV] · CPC title