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SOC estimation method

A target, battery technology, applied in the field of SOC estimation, which can solve problems such as battery power step

Pending Publication Date: 2021-03-02
SHENZHEN KEXIN COMM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a method for estimating SOC to solve the problem of a step in the power of the battery

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Embodiment Construction

[0051]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 part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0052]Such asfigure 1 As shown, the present invention provides a SOC estimation method to adjust the target estimated SOC, to ensure that the target estimated SOC gradually changes, to avoid electrical equipment steps, and effectively improve the estimation accuracy of the target estimated SOC. Methods include:

[0053]S101: Obtain the original estimated SOC and SOH weight coefficients of the target battery.

[0054]Among them, the original estimated SOC is th...

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Abstract

The invention discloses an SOC estimation method. The method comprises the steps of obtaining an original estimated SOC and an SOH weight coefficient of a target battery; obtaining a target ampere-hour integral value, and obtaining a target estimated SOC according to the SOH weight coefficient, the original estimated SOC and the target ampere-hour integral value; obtaining an actual SOC based on the detection voltage and the detection current of the target battery; generating an electric quantity adjusting strategy according to the working state of the target battery, the target estimated SOCand the actual SOC; and adjusting the target estimated SOC according to the electric quantity adjustment strategy to obtain an adjustment result. According to the SOC estimation method provided by theinvention, the SOC estimation precision can be improved, the gradual change of the target estimation SOC is ensured, the change speed of the target estimation SOC is dynamically adjusted, and the situation of electric quantity step is avoided.

Description

Technical field[0001]The present invention relates to the technical field of batteries, and in particular to a method for estimating SOC.Background technique[0002]With the continuous development of technology, batteries provide more and more convenience for people. For example, batteries can be applied to electrical devices such as mobile phones and computers.[0003]However, the inventor found that there is an error in the power displayed by the electric device, which leads to a power step. For example, the power may suddenly change from 30% to 0.Summary of the invention[0004]The embodiment of the present invention provides a SOC estimation method to solve the problem of a step in battery power.[0005]A SOC estimation method, including:[0006]Obtain the original estimated SOC and SOH weight coefficients of the target battery;[0007]Obtaining a target ampere-hour integral value, and obtaining a target estimated SOC according to the SOH weight coefficient, the original estimated SOC and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/367G01R31/3835G01R31/388
CPCG01R31/367G01R31/388G01R31/3835
Inventor 李阳倪尔福张孝俊陈登志
Owner SHENZHEN KEXIN COMM TECH
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