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Power battery charging electrical control system and method

An electrical control system and power battery technology, applied in the direction of secondary battery charging/discharging, battery/fuel cell control devices, battery circuit devices, etc. , The effect of improving the overall charging efficiency

Active Publication Date: 2020-02-21
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because in the power battery, not only the performance of the battery packs is different, but also the battery packs in the battery pack are also different. Although, the overall current limiting and voltage limiting method can be adopted in the charging method, which can avoid damage to the battery pack to a certain extent. Or the battery pack is overcharged and causes permanent damage, reducing the life of the power battery, but subsequently, it will bring about a decline in charging efficiency

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  • Power battery charging electrical control system and method
  • Power battery charging electrical control system and method

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Embodiment Construction

[0031] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0032] Such as figure 1 As shown, the power battery charging electrical control system of the present invention includes N charging branches, a data acquisition module, an SOC calculation module and a charging management module. N is greater than or equal to 2. Wherein, each charging branch respectively charges a battery pack in the power battery. The charging power supply is respectively connected to the power control module on the...

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Abstract

The invention discloses a power battery charging electrical control system and method. The system involves a plurality of charging branches, a data acquisition module, an SOC calculation module and acharging management module, wherein each charging branch charges one battery pack in the power battery, the SOC calculation module calculates the SOC value of each single battery according to the state parameter data of each single battery, and the charging management module can enable corresponding charging branches of power control modules to charge the battery pack with the optimal charging power by controlling the corresponding power control modules according to the SOC value of each single battery. According to the system, by separately differentially charging each battery pack of the power battery and combining the SOC value of each single battery in the battery pack, the charging power of the charging branches to the battery pack is controlled, damage to the battery pack during charging can be avoided, and the overall charging efficiency of the power battery can be improved.

Description

technical field [0001] The invention belongs to the field of power batteries, and in particular relates to a power battery charging electrical control system and method. Background technique [0002] With the rapid development of electric vehicles, power batteries are one of the key technologies of electric vehicles, and their service life and cruising range are very important. In power batteries, all single cells must be grouped to provide sufficient energy for electric vehicles. Specifically, when single cells are grouped, high voltage is obtained through series connection, and high capacity is obtained through parallel connection. Taking the battery board of Tesla Model S as an example, it is composed of 16 battery packs in series, each battery pack is composed of 6 battery packs in series, and each battery pack is composed of 74 18650 cells connected in parallel. [0003] However, the charging method of the existing power battery is mainly to charge each battery pack th...

Claims

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Application Information

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IPC IPC(8): B60L53/62B60L58/13B60L58/18H01M10/44H02J7/00
CPCB60L53/62B60L58/13B60L58/18H01M10/441H02J7/0019Y02E60/10Y02T10/70Y02T10/7072Y02T90/12
Inventor 方雯龚健鲁玲
Owner CHINA THREE GORGES UNIV
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