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Battery capacity increment filtering method, system and device and medium

A technology of battery capacity and capacity increment, which is applied in the direction of measuring devices, measuring electrical variables, measuring electricity, etc., can solve the problems of digital filter performance sensitivity, etc., and achieve the effect of improving suppression and strengthening correlation

Pending Publication Date: 2021-01-22
GUANGZHOU HKUST FOK YING TUNG RES INST
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  • Abstract
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Problems solved by technology

However, the method of battery capacity increment involves differential operation of battery voltage and is therefore very sensitive to noise and corresponding digital filter performance

Method used

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  • Battery capacity increment filtering method, system and device and medium
  • Battery capacity increment filtering method, system and device and medium
  • Battery capacity increment filtering method, system and device and medium

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Embodiment Construction

[0032] The present invention will be further explained and described below in conjunction with the accompanying drawings and specific embodiments of the description. For the step numbers in the embodiment of the present invention, it is only set for the convenience of explanation and description, and there is no limitation on the order of the steps. The execution order of each step in the embodiment can be carried out according to the understanding of those skilled in the art Adaptive adjustment.

[0033] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a filtering method for battery capacity increment, referring to figure 1 , the method includes the following steps:

[0034] S1. Performing a first filter on the battery capacity increment and the battery terminal voltage in the time direction to obtain a first result;

[0035] S2. According to the first result, perform a second filter on the battery capacity increment in the ...

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Abstract

The invention discloses a battery capacity increment filtering method, system and device and a medium. The method comprises the steps: carrying out first filtering on a battery capacity increment anda battery end voltage in a time direction to obtain a first result; and according to the first result, carrying out second filtering on the battery capacity increment in the batch direction, and determining the capacity increment value of the battery under the current voltage. According to the invention, the battery capacity increment is filtered from the time dimension and the batch dimension, sothat suppression of voltage measurement noise can be improved, the correlation between the filtered capacity increment peak value and peak voltage and the battery health state can be obviously enhanced, and the method can be widely applied to the technical field of battery detection.

Description

technical field [0001] The invention relates to the technical field of battery detection, in particular to a filtering method, system, device and medium for battery capacity increment. Background technique [0002] A battery is a highly complex nonlinear system. Its key aging characteristics are usually nonlinearly coupled with factors such as battery temperature and remaining power. Capacity gain, an emerging aging feature, has the advantage of completely eliminating the need for information about the remaining capacity of the battery. However, the method of battery capacity increment involves differential operation of battery voltage and is therefore very sensitive to noise and corresponding digital filter performance. [0003] Therefore, how to effectively suppress voltage measurement noise is an urgent problem to be solved. Contents of the invention [0004] In view of this, embodiments of the present invention provide a method, system, device, and medium for filter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/367G01R31/388G01R31/392G06F17/15
CPCG01R31/367G01R31/392G01R31/388G06F17/15
Inventor 唐晓鹏卢静宜刘凯龙高福荣姚科
Owner GUANGZHOU HKUST FOK YING TUNG RES INST
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