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Electrical control method and device for multi-branch parallel battery

An electrical control device and electrical control technology, applied in battery circuit devices, battery charging management, arrangement of multiple synchronous batteries, etc., can solve problems such as large current and battery capacity inconsistency, large voltage difference, etc., to avoid overcurrent Large, to avoid the effect of not making full use of electric energy

Inactive Publication Date: 2018-08-28
威睿电动汽车技术(苏州)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of large voltage difference between modules, resulting in large current and inconsistent battery capacity, the present invention proposes an electrical control method and device for multi-branch parallel-connected batteries. The specific scheme is as follows:

Method used

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  • Electrical control method and device for multi-branch parallel battery
  • Electrical control method and device for multi-branch parallel battery
  • Electrical control method and device for multi-branch parallel battery

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0043] In the several embodiments provided in this application, the described system embodiments are only illustrative, for example, the division of the modules is only a logical function division, and there may be other division methods in actual implementation, such as Multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or co...

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Abstract

The invention, which relates to the field of electronic appliances, discloses an electrical control method and device for a multi-branch parallel battery. According to the method, N parallel battery module groups are used as battery packs; branch management modules are arranged at the battery module groups to upload state information of the battery module groups in real time; and a battery management module analyzes the state information and controls connection or disconnection of each battery module group. With the method disclosed by the invention, the battery module group with the low battery capacity can be charged in priority and the battery module group with the large attenuation ratio can be disconnected, so that the battery pack can carry out outputting efficiently. Meanwhile, thevoltage differences between the module groups are balanced by charging the battery module group with the low battery capacity, so that a phenomenon that the battery is damaged by the heavy currents caused by circuit closing because of the pressure difference is avoided and the service life of the battery is prolonged.

Description

technical field [0001] The invention relates to the field of electronic appliances, in particular to an electrical control method and device for batteries connected in parallel with multiple branches. Background technique [0002] The battery pack can provide the power for the operation of the electric vehicle and is an important part of the electric vehicle. Therefore, the safety of the battery pack cannot be ignored. Once the battery pack is damaged, the operation of the entire electric vehicle will cause problems and even cause accidents. The battery module is an important part of the battery pack. Once the module is damaged, a series of chain damage will occur. Such as wire burning, battery leakage, battery internal short circuit, etc., will seriously threaten the life of the driver, so the module must not be damaged during operation. [0003] The current battery module solution adopts the architecture of parallel first and then serial. However, this method cannot conn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0016H02J7/0018H02J7/0019H02J7/0022H02J7/0026
Inventor 纪淑凡施华军徐广达张雄刘坤吴光麟
Owner 威睿电动汽车技术(苏州)有限公司
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