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Active equalization method for battery pack, and computer readable medium

An active equalization and battery pack technology, applied in charge equalization circuit, arrangement of multiple synchronous batteries, electric vehicles, etc., can solve problems such as cost increase, equalization module burnout, unreasonable heat dissipation, etc., to save energy and reduce life consumption as fast as possible

Inactive Publication Date: 2017-10-20
WINNERWAY MOTORS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the equalization process is to convert electric energy into heat energy, corresponding cooling equipment must be configured in the heat dissipation process, which greatly increases the cost in industrial production and converts electric energy into heat energy will cause unnecessary power waste; in addition, if heat dissipation If it is unreasonable, it will cause the temperature of the entire battery combination equalization module to be too high, resulting in accelerated decay of the battery and the consequence of burning out the equalization module

Method used

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  • Active equalization method for battery pack, and computer readable medium
  • Active equalization method for battery pack, and computer readable medium
  • Active equalization method for battery pack, and computer readable medium

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Embodiment Construction

[0029] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0030] figure 1 A flowchart showing an active balancing method for a battery pack according to an embodiment of the present invention, as figure 1 As shown, according to one embodiment of the present invention, an active equalization method for a battery pack is provided. The battery pack may include at least two battery cells connected in series. The active equalization method may include:

[0031] In step S11, respectively detect the voltages at both ends of the two battery cells in the battery pack;

[0032] In step S12, it is judged whether the detected voltage across one of the two battery cells is greater than the voltage across the other of the two batt...

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Abstract

The invention relates to the field of batteries and discloses an active equalization method for a battery pack. The battery pack comprises at least two battery units connected in series. The active equalization method comprises steps of: detecting the voltages across the two battery units in the battery pack separately; determining whether the detected voltage across one of the two battery units is greater than the voltage across the other one of the two battery units; if yes, enabling the one of the two battery units to charge an energy storage element; after the energy storage element is charged, enabling the energy storage element to charge the other one of the two battery units to equalize the voltages across the two battery units. The invention also discloses a computer readable medium having instructions stored thereon. When the instructions are executed by a computer, the computer executes the steps of the active equalization method for a battery pack.

Description

technical field [0001] The present invention relates to the technical field of batteries, in particular to an active balancing method for battery packs. Background technique [0002] In the field of electric power, lithium batteries have gradually become the mainstream power source for electric vehicles, energy storage and communication backup power due to their advantages such as high energy density, small size, and environmental protection. [0003] In actual use, lithium batteries are in the form of battery packs. However, during the production of lithium batteries, there will inevitably be small performance differences due to factors such as the environment and production machines, which leads to the fact that each lithium battery in the lithium battery pack may have different voltage values ​​for each battery. After repeated use, the voltage difference of these batteries will gradually increase. If equalization is not performed in time, these increasing inconsistencies...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0018H02J7/0019
Inventor 张庆林程刘营涛曾广闽梁茂森
Owner WINNERWAY MOTORS CO LTD
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