Device For Balancing An Energy Store

一种蓄电池、均衡电路的技术，应用在电荷均衡电路、多个同步电池的安排、电池电路装置等方向，能够解决限制速度等问题，达到最小化尺寸、高放电功率的效果

Active Publication Date: 2012-05-30
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this limits the speed of equilibrium

Method used

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  • Device For Balancing An Energy Store
  • Device For Balancing An Energy Store
  • Device For Balancing An Energy Store

Examples

Experimental program
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Embodiment Construction

[0018] figure 1 An exemplary embodiment of the apparatus for equalizing storage battery 10 according to the present invention is shown. The storage battery 10 has, for example, two battery cell groups connected in series in the form of single battery cells 11a and 11b. A respective equalization circuit 20a, 20b is allocated to each of the battery cells 11a, 11b. The structure of the equalizing circuits 20a, 20b and the connection with the respective battery cells 11a, 11b are the same. Therefore, only the equalizing circuit 20a will be described below with reference to the equalizing circuit.

[0019] The first terminal of the battery cell 11a is connected to the first input terminal 12a of the equalizing circuit, and the second terminal of the battery cell 11a is connected to the second input terminal 13a of the equalizing circuit 20a. The equalization circuit 20a has a series circuit composed of a first resistor 22a, a second resistor 23a, and a third resistor 24a between the...

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PUM

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Abstract

The invention relates to a device for balancing an energy store (10), especially an energy store (10) in an on-board power supply system of a motor vehicle, which energy store is formed by a cell assembly of a serial connection of a plurality of cell groups (11a, 11b), respective balancing circuits (20a, 20b) being connected to voltage connections of respective cell groups (11a, 11b) and comprising a discharge resistor (21a, 21b). The device according to the invention is characterized in that the discharge resistor (21a, 21b) of a respective balancing circuit (20a, 20b) has a temperature-dependent resistance characteristic, and the discharge resistors (21a, 21b) of at least some of the balancing circuits (20a, 20b) are thermally intercoupled.

Description

Technical field [0001] The invention relates to a device for balancing a battery. The battery is composed of a combination of battery cells. The battery cell combination is composed of a series circuit of a plurality of battery cell groups. The battery is especially a battery in a motor vehicle electrical network. The circuit is connected to the voltage terminal of the corresponding battery cell group and has a discharge resistance. Background technique [0002] In the automotive field, batteries composed of single-cell cells are increasingly used, preferably batteries composed of double-layer capacitors. These double layer capacitors provide the following advantages in terms of supplying and storing energy: they can provide high power in a short time. In order to achieve the necessary supply voltage in the vehicle, the individual double layer capacitors must be connected in series. The battery cells connected in series thus form a battery cell assembly. In order to charge, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCY02T10/7044Y02T10/7061H02J7/0016B60L11/1861B60L11/1866Y02T10/7005B60L11/1874B60L58/22B60L58/26Y02T10/70
Inventor A·马伊J·弗勒舍尔
Owner BAYERISCHE MOTOREN WERKE AG
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