Conditioning device and method for conditioning a data channel of a cell of an electrical energy store

Patent metadata

Field	Value
Publication number	US-9729198-B2
Application number	US-201314402285-A
Country	US
Kind code	B2
Filing date	Apr 23, 2013
Priority date	May 21, 2012
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

A conditioning device for conditioning a data channel of a cell of a multicell electric energy store is designed to condition a signal frequency, suitable for transmitting data via the data channel, and/or an alternating current resistance of the data channel.

First claim

What is claimed is:

1. A conditioning device for conditioning a data channel of at least one battery cell of a multicell battery, comprising:
at least one variable electrical element that conditions at least one of (i) a signal frequency suitable for transmission of data via the data channel of the at least one battery cell and (ii) an alternating current resistance of the data channel of the at least one battery cell;
wherein the at least one variable electrical element includes at least one of a variable capacitor and at least one variable inductor;
wherein the at least one variable electrical element is electrically connected to a first power supply line of the at least one battery cell of the multicell battery and a second power supply line of the at least one battery cell of the multicell battery, the data channel being carried over at least one of the first power supply line and the second power supply line so that the transmission of the data via the data channel is over the at least one of the first power supply line and the second power supply line.

2. The conditioning device as recited in claim 1 , wherein the conditioning device is configured to adjust the alternating current resistance of at least one of the first power supply line of the at least one battery cell, the second power supply line of the at least one battery cell, an electrical connection between the first power supply line and the second power supply line, a cell housing wall of the at least one battery cell, and a battery housing of the multicell battery.

3. The conditioning device as recited in claim 2 , wherein the at least one variable capacitor and the at least one variable inductor are configured to be connected to the data channel of the at least one battery cell in order to condition the alternating current resistance of the data channel of the at least one battery cell.

4. The conditioning device as recited in claim 2 , wherein a receiving device receives a signal, and wherein the conditioning device conditions the data channel of the at least one battery cell using the signal.

5. The conditioning device as recited in claim 2 , wherein the conditioning device is configured to (i) increase the alternating current resistance with respect to the signal frequency in a first operating state and (ii) reduce the alternating current resistance with respect to the signal frequency in a second operating state.

6. The conditioning device as recited in claim 1 , wherein the multicell battery is a lithium-ion battery.

7. The conditioning device as recited in claim 1 , wherein the at least one battery cell is one of a galvanic secondary battery cell or an electrochemical secondary battery cell.

8. A system for transmission of data via a data channel of at least one battery cell of a multicell battery, comprising:
an interface for electrically conductively connecting the a communication device to the data channel of the at least one battery cell;
a transmission device configured to output, to the data channel of the at least one battery cell via the interface, data to be transmitted by the communication device using a signal frequency; and
a conditioning device for conditioning the data channel, the conditioning device including at least one variable electrical element configured to condition at least one of (i) the signal frequency suitable for transmission of data via the data channel of the at least one battery cell and (ii) an alternating current resistance of the data channel of the at least one battery cell;
wherein the at least one variable electrical element includes at least one variable capacitor and at least one variable inductor;
wherein the conditioning device is electrically connected to a first power supply line and a second power supply line of the at least one battery cell of the multicell battery, the data channel being carried over at least one of the first power supply line and the second power supply line so that the transmission of the data via the data channel is over the at least one of the first power supply line and the second power supply line.

9. The system as recited in claim 8 , further comprising:
a detection device for detecting sensor data with regard to the at least one battery cell; wherein the communication device is configured to receive the sensor data from the detection device and generate the data to be transmitted, based on the sensor data.

10. The system as recited in claim 9 , wherein the conditioning device is configured to adjust the alternating current resistance of at least one of the first power supply line and the second power supply line.

11. The system as recited in claim 10 , wherein at least two battery cells are situated in at least one of a series connection and a parallel connection.

12. The system as recited in claim 8 , wherein the multicell battery is a lithium-ion battery.

13. The system as recited in claim 8 , further comprising the multicell battery.

14. The system as recited in claim 8 , wherein the at least one battery cell is one of a galvanic secondary battery cell or an electrochemical secondary battery cell.

15. A method for conditioning a data channel of a battery cell of a multicell battery, comprising:
electrically connecting a conditioning device to a first power supply line and a second power supply line of the battery cell of the multicell battery; and
conditioning, using the conditioning device, at least one of (i) a signal frequency suitable for transmission of data via the data channel of the battery cell, and (ii) an alternating current resistance of the data channel of the battery cell;
wherein the conditioning device adjusts the alternating current resistance of at least one of the first power supply line of the battery cell, the second power supply line of the battery cell, an electrical connection between the first power supply line and the second power supply line, a cell housing wall of the battery cell, and a battery housing of the multicell battery;
wherein the conditioning device includes at least one variable electrical element; and
wherein the at least one variable electrical element includes at least one variable capacitor and at least one variable inductor,
the data channel being carried over at least one of the first power supply line and the second power supply line so that the transmission of the data via the data channel is over the at least one of the first power supply line and the second power supply line.

16. The method as recited in claim 15 , wherein the multicell battery is a lithium-ion battery.

17. The method as recited in claim 15 , wherein the battery cell is one of a galvanic secondary battery cell or an electrochemical secondary battery cell.

Assignees

• Bosch Gmbh Robert

Inventors

• Henrici Fabian
• Strobel Jens

Classifications

• H02J7/80

  including monitoring or indicating arrangements · CPC title

• H02J7/50

  acting upon multiple batteries simultaneously or sequentially · CPC title

• H04B2203/5458

  Monitor sensor; Alarm systems · CPC title

• H04B2203/547

  via DC power distribution · CPC title

• H04B3/54 Primary

  Systems for transmission via power distribution lines · CPC title