Method of Charging from Electric Vehicle to Electric Vehicle

• US 20160288664A1
• Filed: 11/06/2014
• Published: 10/06/2016
• Est. Priority Date: 11/08/2013
• Status: Active Grant

• Current Assignee: Intelligent Electronic Systems
• Original Assignee: Intelligent Electronic Systems
• Inventors: Biagini, Eric, Coste, Franois, Jean, Guillaume
• Granted Patent: US 11,364,809 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/20 characterised by converters located in the vehicle
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: B60L 53/80 Exchanging energy storage elements, e.g. removable batteries
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034
• CPC Class Codes: H02M 3/33584 Bidirectional converters
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/92 Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

The invention first relates to a charging device (1) adapted for being connected on the one hand to a battery of a first electric vehicle (14), and on the other hand to a battery of a second electric vehicle (12), for being supplied with direct input current by the battery of the first electric vehicle (14), and for supplying the battery of the second electric vehicle (12) with a direct output current.

The invention also relates to a charging method using this charging device.

Claims

1. A charging device (1) adapted for being connected on the one hand to a battery of a first electric vehicle (14), and on the other hand to a battery of a second electric vehicle (12), for being supplied with direct input current by the battery of the first electric vehicle (14), and for supplying the battery of the second electric vehicle (12) with a direct output current, the charging device (1) including a control system (29) adapted for adjusting the parameters of the power supply of the battery of the second vehicle (12) and capable of exchanging information and instructions with at least one of the first vehicle (14) the second vehicle (12), and the control system (29) being provided with an auxiliary converter adapted for receiving a direct or alternating external current and converting it into direct power supply current for the control system (29).

2. The charging device (1) according to claim 1, wherein the input current and the output current are different, the charging device (1) being adapted for converting the input current into output current.

3. The charging device (1) according to claim 1, which is integrated into the first electric vehicle (14), or is integrated into the second electric vehicle (12).

4. The charging device (1) according to claim 1, which is a removable and portable charging device.

5. The charging device (1) according to claim 1, wherein the charging device is also adapted for being connected on the one hand to an alternating current source (11) and on the other hand to a battery of an electric vehicle (12), for being supplied with an input current from the alternating current source (11), for converting the input current into a direct output current, and for supplying the battery of the electric vehicle (12) with said direct output current.

6. The charging device (1) according to claim 5, wherein the charging device (1) comprises a first stage (23) converting the input current into a direct intermediate current as well as a second stage (24, 25, 26) converting the intermediate current into an output current.

7. The charging device (1) according to claim 1, wherein the control system (29) is adapted for adjusting the parameters of the conversion of the input current and output current;

and adapted for exchanging information and instructions if applicable with the alternating current source (11).

8. The device according to claim 1, wherein the electric vehicle is an electric automobile.

9. The device according to claim 1, wherein the auxiliary converter is adapted for receiving an external current from an onboard electric grid of the first vehicle or an onboard electric grid of the second vehicle, and converting it into a direct power supply current of the control system (29).

10. A method for charging an electric vehicle battery (12), comprising:

supplying power to a charging device (1) via an auxiliary power supply source (30) that is a direct or alternating external current;

connecting a charging device (1) to a battery of a first vehicle (14) and/or to a battery of a second vehicle (12);

supplying the charging device (1) with a direct input current from the battery of the first vehicle (14);

supplying the battery of the second vehicle (12) with an output current from the charging device (1).

11. The method according to claim 10, comprising:

converting the input current into a direct output current with the charging device (1).

12. The method according to claim 10, wherein the charging device (1) is integrated into the first vehicle (14), and the connection step comprises connecting the charging device (1) to the second vehicle (12);

or the charging device (1) is integrated into the second vehicle (12), and the connection step comprises connecting the charging device (1) to the first vehicle (14).

13. The method according to claim 10, wherein the charging device (1) is a removable device, and the connection step comprises connecting the charging device (1) to the first vehicle (14) and the second vehicle (12).

14. The method according to claim 10, wherein the output current has a voltage of 200 to 550 V;

and/or the output current has a power less than or equal to 20 kW.

15. The method according to claim 10, comprising adjusting parameters for the supply of power to the battery of the second vehicle (12) and the exchange of information and instructions between the charging device (1) and the first vehicle (14) and/or the second vehicle (12).

16. The method according to claim 10, wherein the electric vehicle is an electric automobile.

17. The method according to claim 10, wherein the auxiliary power supply source (30) is an onboard electric grid of the first vehicle or an onboard electric grid of the second vehicle.