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Battery pack charging control method and system and battery pack charging device

A charging control method and charging device technology, applied in battery circuit devices, secondary battery charging/discharging, program control devices, etc., can solve the problems of battery packs being unable to be fully charged, charging efficiency, discharging efficiency difference, battery discharge time reduction, etc. problem, to achieve the effect of providing charging rate, guaranteeing discharge time, and avoiding power difference

Active Publication Date: 2020-09-01
北京欧罗科技发展有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference in the manufacturing and operating environment of each single battery, the charging efficiency and discharge efficiency of each single battery are different.
Especially with the increase of charge and discharge times, the capacity difference between the single cells gradually increases, and finally the battery pack cannot be fully charged at the end of the series charge, resulting in a decrease in battery discharge time

Method used

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  • Battery pack charging control method and system and battery pack charging device
  • Battery pack charging control method and system and battery pack charging device
  • Battery pack charging control method and system and battery pack charging device

Examples

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Embodiment Construction

[0073] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0074] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0075] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...

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Abstract

The invention relates to a battery pack charging control method which comprises the steps of obtaining a current state of a to-be-charged battery pack after receiving a charging control signal, wherein the battery pack comprises a plurality of single batteries; when it is obtained that the battery pack is in a normal state, controlling a low-voltage charging unit in the battery pack charging device to charge the first single battery; when the low-voltage charging unit is controlled to charge the first single battery, starting a high-voltage charging unit in the battery pack charging device tocharge the battery pack; and acquiring the charging state of the battery pack in real time, and starting an equalizing discharge unit to discharge the single battery of which the current voltage is greater than or equal to the first voltage value when the single battery of which the current voltage is greater than or equal to the first voltage value exists in the battery pack. According to the invention, each single battery in the battery pack can be fully charged, so that the condition that the single batteries in the battery pack have large electric quantity difference is avoided, and the discharge time of the whole battery pack is effectively ensured.

Description

technical field [0001] The present disclosure relates to the technical field of electrical equipment, and in particular to a battery pack charging control method and system and a battery pack charging device. Background technique [0002] A lithium iron phosphate battery pack system usually consists of several battery pack units, and each battery pack unit includes multiple single cells connected in series. Due to the difference in the manufacturing and operating environment of each single battery, the charging efficiency and discharge efficiency of each single battery are different. Especially with the increase of charging and discharging times, the capacity difference between the single cells gradually increases, and eventually the battery pack cannot be fully charged at the end of series charging, resulting in a decrease in battery discharge time. Contents of the invention [0003] In view of this, the present disclosure proposes a charging control method for a battery...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44G06F9/451
CPCH02J7/0016H02J7/0025H02J7/00302H02J7/0036H01M10/441G06F9/451Y02E60/10
Inventor 齐胜利张少先王云伟霍涛
Owner 北京欧罗科技发展有限公司
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