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Charging and discharging management system and method for series battery pack

A charge-discharge management and series-connected battery technology, which is applied in battery/fuel cell control devices, electric vehicles, transportation and packaging, etc., can solve the problems of battery overcharge, danger, and difficulty in balancing charge and discharge of battery packs, etc., to achieve balanced charging , the effect of discharge safety

Pending Publication Date: 2020-07-10
HONGJI INTELLIGENT BIKE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Battery packs are used in all kinds of electricity-consuming products. For products with large power consumption such as electric vehicles, the power supply is generally composed of multiple battery packs connected in series. These battery packs are generally charged at the same time. Simultaneous discharge, lack of effective charge and discharge management, makes it difficult to balance the charge and discharge of each battery pack, which may cause some batteries to be overcharged during charging, and some batteries are not fully charged, which may cause danger in severe cases

Method used

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  • Charging and discharging management system and method for series battery pack
  • Charging and discharging management system and method for series battery pack

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings.

[0041] as attached figure 1 The charge and discharge management system 100 for series-connected battery packs shown is used to charge the series-connected total pack, which includes a plurality of battery packs 1 connected in series. In this embodiment, the case of two battery packs 1 is taken as an example. Describe in detail. as attached figure 1 As shown, the two battery packs 1 are respectively battery pack A and battery pack B, and each battery pack has four electrodes, namely positive pole (B1+, B2+), negative pole (B1-, B2-), TV pole (TV1 , TV2) and BS poles (BS1, BS2).

[0042] The charging and discharging management system 100 of series battery packs includes a main control unit 2, a charging system 3 and a detection system 4;

[0043] Both the TV pole and the BS pole of the battery pack 1 belong to the information feedback electrodes, among which the TV p...

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Abstract

The invention discloses a charging and discharging management system and method for a series battery pack. The charging and discharging management system comprises a main control unit, a charging system and a detection system, the charging system comprises a single-pack charging circuit for independently charging each battery pack and a main pack charging circuit for charging the series main pack;the main control unit can control on and off of each single-pack charging circuit and the main-pack charging circuit; the detection system comprises a single-pack voltage sensor which is independently arranged for each battery pack and a total-pack voltage sensor which is arranged for a series total pack; and each voltage sensor is connected with the main control unit. According to the charging and discharging management system and method for the series battery pack, the main control unit, the charging system and the detection system are arranged; the main control unit can monitor charging and discharging data of each battery pack and the series main pack according to the detection system, and control the on-off of each charging circuit in the charging system according to the charging anddischarging data, so that each battery pack can be charged in a balanced manner and is safe in charging and discharging.

Description

technical field [0001] The invention relates to the technical field of battery management, in particular to a charge and discharge management system and method for battery packs connected in series. Background technique [0002] Battery packs are used in all kinds of electricity-consuming products. For products with large power consumption such as electric vehicles, the power supply is generally composed of multiple battery packs connected in series. These battery packs are generally charged at the same time. Simultaneous discharge, lack of effective charge and discharge management, makes it difficult to balance the charge and discharge of each battery pack, which may cause some batteries to be overcharged during charging, and some batteries are not fully charged, which may cause danger in severe cases. Contents of the invention [0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a charging and dischargi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/18B60L58/22B60L58/14B60L58/15
CPCB60L58/18B60L58/22B60L58/14B60L58/15B60L2240/547B60L2240/549Y02T10/70
Inventor 赵俊涛周奇吴俊
Owner HONGJI INTELLIGENT BIKE CO LTD
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