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Method, system, vehicle, storage medium and electronic device for balancing batteries

A battery equalization and equalization technology, applied in the field of control, can solve problems such as inaccurate single batteries and inaccurate battery information

Active Publication Date: 2019-03-08
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this way, battery information may be collected while equalization is being performed, which may lead to inaccurate battery information collected, and thus inaccurately determined single cells that need to be balanced.

Method used

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  • Method, system, vehicle, storage medium and electronic device for balancing batteries
  • Method, system, vehicle, storage medium and electronic device for balancing batteries
  • Method, system, vehicle, storage medium and electronic device for balancing batteries

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Embodiment Construction

[0026] Specific embodiments of the present disclosure 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 disclosure, and are not intended to limit the present disclosure.

[0027] see figure 1 , is a schematic structural diagram of a battery balancing system according to an embodiment of the present disclosure.

[0028] The battery balancing system includes: a control module 301 , an acquisition module 302 and a balancing module 303 , which are used to balance the battery pack 304 . Wherein, the battery pack 304 includes a plurality of single cells connected in series. The control module 301 is connected to the acquisition module 302 and the equalization module 303 corresponding to the same single battery through a control channel 305, and the acquisition module 302 and the equalization module 303 time-multiplex the control ch...

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PUM

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Abstract

The invention relates to a method, system, vehicle, storage medium and electronic device for balancing batteries, the battery balancing system comprises a balance module, an acquisition module and a control module, the control module is connected with an acquisition module and balance module corresponding to the same single battery through a channel, and the acquisition module and the balance module commonly uses the channel at time divisions. The method comprises the following steps: the control module acquires a voltage value of each single battery through the acquisition module corresponding to each single battery in the battery pack; the control module determines a reference voltage value required by balance judgment according to the voltage value of each single battery in the batterypack; and the control module determines the single battery to be balanced according to the voltage value of at least one single battery in the battery pack and the reference voltage value.

Description

technical field [0001] The present disclosure relates to the technical field of control, and in particular, relates to a battery balancing method, system, vehicle, storage medium, and electronic equipment. Background technique [0002] Large-capacity batteries that provide power energy for electric vehicles are often called power batteries. Vehicle power batteries generally consist of multiple single cells connected in series to form a module. With the use of the battery, the difference between the individual batteries gradually increases, and the consistency between the individual batteries is poor. Due to the short plate effect of the battery, the capacity of the battery pack is limited, so that the capacity of the battery pack cannot be fully utilized, resulting in the failure of the battery pack. Overall capacity is reduced. On the other hand, after the differences among individual batteries gradually expand, some single batteries will be overcharged and some single ba...

Claims

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Application Information

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IPC IPC(8): B60L58/18H02J7/00
CPCB60L2240/547H02J7/0019B60L58/18H02J7/00Y02T10/70
Inventor 罗红斌王超沈晓峰曾求勇刘苑红张祥
Owner BYD CO LTD
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