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Power battery health degree evaluation method, device and system

A technology of power battery and evaluation method, which is applied in the direction of measuring device, measuring electricity, measuring electrical variables, etc., can solve the problems of low accuracy, inconsistency of actual use, and different influence of power battery.

Inactive Publication Date: 2019-07-12
优必爱信息技术(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the evaluation of the health of the power battery is mainly the static evaluation of the performance of the power battery itself. Since the usage scenarios and usage habits of electric vehicles are different, the impact on the power battery is also different, which leads to the static evaluation of the health of the power battery. The evaluation results do not match the actual usage, which means that the current evaluation of the health of power batteries is less accurate

Method used

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  • Power battery health degree evaluation method, device and system
  • Power battery health degree evaluation method, device and system
  • Power battery health degree evaluation method, device and system

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Comparison scheme
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Embodiment 1

[0110] see figure 1 , figure 1 It is a schematic flowchart of a power battery health evaluation method provided in Embodiment 1 of the present application.

[0111] Such as figure 1 As shown, the power battery health evaluation method provided in this embodiment includes:

[0112] Step 11. Obtain the original data of the power battery to be evaluated from the original data database; the original data database is used to store the historical real-time data of the vehicle operating environment, the historical real-time data of the vehicle power battery, the historical real-time data of the driving behavior during the driving process of the vehicle, and the vehicle status Historical real-time data.

[0113] Step 12. Process the raw data according to the three-level indicators in the preset indicator system to obtain the evaluation data of each three-level indicator; the preset indicator system includes the first-level indicators, the second-level indicators and the third-level...

Embodiment 2

[0219] see figure 2 , figure 2 It is a schematic structural diagram of a power battery health evaluation device provided in Embodiment 2 of the present application.

[0220] Such as figure 2 As shown, the power battery health evaluation device provided in this embodiment includes:

[0221] The acquisition module 21 is used to acquire the raw data of the power battery to be evaluated from the raw data database; the raw data database is used to store the historical real-time data of the vehicle operating environment, the historical real-time data of the vehicle power battery, and the historical real-time data of the driving behavior during the driving process of the vehicle And historical real-time data of vehicle status;

[0222] The processing module 22 is used to process the raw data according to the three-level indicators in the preset index system to obtain the evaluation data of each three-level indicators; the preset indicator system includes the first-level indicat...

Embodiment 3

[0249] see image 3 , image 3 It is a schematic structural diagram of a power battery health evaluation system provided in Embodiment 3 of the present application.

[0250] Such as image 3 As shown, the power battery health evaluation system provided in this embodiment includes:

[0251] Raw data database 31; the raw data database is used to store the raw data in the power battery health evaluation method as in Embodiment 1;

[0252] A processor 32 connected to the raw data database, a memory 33 connected to the processor;

[0253] The memory is used to store computer programs, and the computer programs are at least used in the power battery health evaluation method of Embodiment 1;

[0254] The processor is used to call and execute the computer program in the memory.

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Abstract

The invention relates to the field of electric vehicle performance evaluation, in particular to a power battery health degree evaluation method, device and system, and the method comprises the steps:obtaining original data of a to-be-evaluated power battery from an original data database; processing the original data to obtain evaluation data of each level of index; obtaining the score of each three-level index of the power battery to be evaluated according to the evaluation data of each three-level index and a preset three-level index score calculation rule; calculating and obtaining an evaluation total score of the power battery to be evaluated according to the preset weight and the score of each level of index of the power battery to be evaluated; and obtaining the health degree gradeof the to-be-evaluated power battery according to the total evaluation score and a preset rating standard. Due to the fact that the first-level indexes comprise the battery use environment feature dimension and the driving behavior feature dimension, and the scene when the power battery is used and the influence of the driving behavior on the health degree of the power battery are comprehensivelyincluded, the health degree of the power battery can be more accurately evaluated by using the technical scheme of the invention.

Description

technical field [0001] The present application relates to the field of performance evaluation of electric vehicles, in particular to a method, device and system for evaluating the health of a power battery. Background technique [0002] For electric vehicles, the power battery is one of the important factors affecting the overall performance of the vehicle. Therefore, it is of great significance to evaluate the health of the power battery for both consumers and manufacturers. [0003] At present, the evaluation of the health of the power battery is mainly the static evaluation of the performance of the power battery itself. Since the usage scenarios and usage habits of electric vehicles are different, the impact on the power battery is also different, which leads to the static evaluation of the health of the power battery. The evaluation results do not match the actual usage, which means that the current evaluation of the health of power batteries is less accurate. Content...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/245G06F16/22G01R31/36G01R31/367G01R31/392
CPCG01R31/3648G01R31/367G01R31/392G06F16/22G06F16/245
Inventor 王志刚朱瑞
Owner 优必爱信息技术(北京)有限公司
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