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Battery test data processing method, device, system and storage medium

A technology of test data and processing methods, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems that the battery performance data cannot meet the needs of the control algorithm of the battery management system, and cannot support the development of control algorithms. Extracting data to improve performance

Active Publication Date: 2021-03-19
GAC AION NEW ENERGY AUTOMOBILE CO LTD
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Problems solved by technology

However, during the implementation process, the inventors found at least the following problems in the traditional technology: the battery performance data obtained according to the traditional processing method cannot meet the needs of the control algorithm of the battery management system, and cannot support the development of the control algorithm

Method used

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  • Battery test data processing method, device, system and storage medium
  • Battery test data processing method, device, system and storage medium
  • Battery test data processing method, device, system and storage medium

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Embodiment Construction

[0045] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0046] In order to solve the problem that the battery performance data obtained according to the traditional processing method cannot meet the needs of the control algorithm of the battery management system and cannot support the development of the control algorithm, in one embodiment, as figure 1 As shown, a battery test data processing method is provided, including the following steps:

[0047] Step S110, processing the battery test data to obtain basic performance parameters.

[0048] Among them, the test data of the battery cell is obtained by performing various tests...

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Abstract

The present application relates to a cell test data processing method, device and system and a storage medium. The method comprises the following steps: cell test data is processed to obtain basic performance parameters; and a changing curve of an open-circuit voltage in the basic performance parameters with standing time is fit to obtain equivalent circuit model parameters of a cell. Through thecell test data processing method, the basic performance parameters are extracted from the cell test data, and the equivalent circuit model parameters of the cell are obtained by fitting analysis of the changing curve of the open-circuit voltage in the basic performance parameters with the standing time. Thereby more comprehensive and deeper parameters are provided for an equalization algorithm ofa vehicle battery management system, and then strong support is provided for the development of the equalization algorithm; the development of the equalization algorithm is accelerated; the reliability of equalization algorithm is improved; manual data extraction is avoided; and the processing efficiency of the cell test data is improved.

Description

technical field [0001] The present application relates to the technical field of batteries, in particular to a battery test data processing method, device, system and storage medium. Background technique [0002] The material system and design of the battery cell are updated very quickly, and the battery cell needs to undergo a large number of tests before it is actually put into use, such as charging / discharging tests at different rates or open-circuit voltage tests, and the test data is processed to obtain Cell performance data used to support the development of control algorithms (such as balancing algorithms) for battery management systems. [0003] Currently, methods for processing battery test data include manual extraction, excel tool extraction, and code extraction. However, during the implementation process, the inventor found at least the following problems in the traditional technology: the battery performance data obtained according to the traditional processing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/367
Inventor 刘超张九才梅骜
Owner GAC AION NEW ENERGY AUTOMOBILE CO LTD
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