Method for the temperature control of a traction battery arranged in a vehicle during a charging process at a charging station, and charging station for performing such a method

• US 10,017,072 B2
• Filed: 03/17/2014
• Issued: 07/10/2018
• Est. Priority Date: 04/18/2013
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH, Samsung SDI Company Limited
• Original Assignee: Robert Bosch GmbH, Samsung SDI Company Limited
• Inventors: Galamb, Gergely
• Primary Examiner(s): ISLA RODAS, RICHARD
• Assistant Examiner(s): Ruiz, Johali Torres
• Application Number:
  US14/783,520
• Publication Number:
  US 20160052421A1
• Time in Patent Office: 1,576 Days
• Field of Search: 320109, 320150
• CPC Class Codes: B60K 2001/005 the electric storage means
• CPC Class Codes: B60K 2001/0438 Arrangement under the floor
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/302 Cooling of charging equipment
• CPC Class Codes: B60L 58/26 by cooling
• 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 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

An electrical contact assembly includes a first electrical contact having a first mating element, and a second electrical contact having a second mating element. The first and second electrical contacts are configured to mate together at the first and second mating elements such that the first and second mating elements engage each other at a contact interface. A distribution of contact pressure across the contact interface at least partially coincides with a distribution of electrical current flow across the contact interface.

Claims

1. A method for the temperature control of a traction battery arranged in a vehicle during a charging process at a charging station, wherein the traction battery has at least one contacting surface configured to thermally contact the traction battery, the method comprising:

thermally contacting at least one cooling body provided by the charging station with the at least one contacting surface of the traction battery such that an exchange of thermal energy between the at least one cooling body and the traction battery via the least one contacting surface thermally contacted with the at least one cooling body is enabled without the traction battery having a cooling device or a cooling channel and the traction battery is temperature-controlled by the at least one cooling body, at least during the charging process.

2. The method as claimed in claim 1, further comprising:

moving the at least one cooling body toward the traction battery and/or moving the traction battery toward the at least one cooling body to thermally contact the at least one cooling body with the at least one contacting surface of the traction battery,

wherein the traction battery remains connected to the vehicle during the charging process.

3. The method as claimed in claim 1, further comprising:

prior to beginning the charging process, bringing the traction battery into a defined position relative to a position of the least one cooling body by positioning the vehicle containing the traction battery, prior to beginning the charging process.

4. The method as claimed in claim 1, wherein:

the vehicle containing the traction battery comprises a traction battery positioning device, and the traction battery is moved by the traction battery positioning device toward the at least one cooling body to thermally contact the at least one cooling body with the at least one contacting surface of the traction battery.

5. The method as claimed in claim 1, further comprising:

stopping the vehicle containing the traction battery to be recharged on a vehicle positioning device of the charging station, and

moving the vehicle toward the at least one cooling body via the vehicle positioning device in order to thermally contact the at least one cooling body with the at least one contacting surface of the traction battery.

6. The method as claimed in claim 1, wherein:

the at least one cooling body is configured to adopt at least one first position and at least one second position, and

the at least one cooling body for the temperature control of the traction battery is brought from the at least one first position into the at least one second position and the at least one cooling body in the at least one second position thermally contacts the at least one contacting surface of the traction battery.

7. The method as claimed in claim 6, wherein the at least one cooling body is brought from the at least one second position into the at least one first position following the charging process.

8. The method as claimed in claim 6, further comprising:

arranging the at least one cooling body on a controllable positioning device, wherein the positioning device is controlled such that the at least one cooling body is brought by the positioning device from the at least one first position into the at least one second position for the temperature control of the traction battery.

9. The method as claimed in claim 8, wherein:

the positioning device is a lifting device and the at least one cooling body is arranged in the at least one first position close to the ground or is at least partially recessed in the ground,

the vehicle containing the traction battery to be recharged is positioned with the at least one contacting surface of the traction battery above the lifting device with the at least one cooling body, and

the at least one cooling body is moved upwardly by the lifting device into the at least one second position.

10. The method as claimed in claim 6, wherein the at least one cooling body is detachably connected to the at least one contacting surface of the traction battery in the at least one second position.

11. The method as claimed in claim 1, wherein:

at least one of the traction battery and the at least one contacting surface of the traction battery has at least one retaining mechanism configured to hold the at least one cooling body, and

the at least one cooling body is brought into thermal contact with the at least one contacting surface with use of the at least one retaining mechanism.

12. The method as claimed in claim 1, wherein:

the at least one cooling body is cooled prior to beginning a charging process and/or following an end of a charging process, and

the at least one cooling body comprises a mechanism configured to store thermal energy, such that the at least one cooling body forms a heat sink in the event of thermal contacting of the at least one contacting surface of the traction battery.

13. The method as claimed in claim 1, further comprising:

passing a coolant through at least part of the at least one cooling body during a charging process; and

transferring thermal energy from the at least one cooling body to the passing coolant, such that the at least one cooling body forms a heat sink in the event of thermal contacting of the at least one contacting surface of the traction battery.

14. A charging station for recharging a traction battery arranged in a vehicle, wherein the traction battery has at least one contacting surface for thermally contacting the traction battery, the charging station comprising:

at least one cooling body configured to thermally contact the at least one contact surface of the traction battery such that an exchange of thermal energy between the at least one cooling body and the traction battery via the at least one contact surface thermally contacted with the at least one cooling body is enabled without the traction battery having a cooling device or a cooling channel and the traction battery is temperature-controlled by the at least one cooling body, at least during a charging process.