Construction method, evaluation method and device of a battery health evaluation model

A technology for evaluating models and building methods, applied in the direction of testing and transportation of electrical devices, measuring devices, measuring electricity, etc., can solve the problems of limited use locations, inability to obtain battery health status online in real time, and low practicability, and achieve practicality. high effect

Active Publication Date: 2021-09-03
优必爱信息技术(北京)有限公司
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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a method for constructing a battery health evaluation model, an evaluation method and a device, so as to overcome the current inability to obtain the health status of the battery online in real time, the place of use is relatively limited, and the practicability is not high. The problem

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  • Construction method, evaluation method and device of a battery health evaluation model
  • Construction method, evaluation method and device of a battery health evaluation model
  • Construction method, evaluation method and device of a battery health evaluation model

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Embodiment Construction

[0088] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0089] figure 1 It is a flow chart of Embodiment 1 of the construction method of the battery health evaluation model of the present invention. like figure 1 As shown, a method for constructing a battery health evaluation model in this embodiment may specifically include the following steps:

[0090] S101. Obtain an effective stroke in the working cycle of the preset cycle category of the battery to be tested;

[0091] At present, when evaluating battery perf...

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Abstract

The present invention relates to a construction method, evaluation method and device of a battery health evaluation model, by obtaining the effective stroke in the working cycle of the battery to be tested; determining the segment health estimation value of each working segment; determining the standard corresponding to the cycle category Correction coefficient; based on the standard correction coefficient, correct the fragment health estimation value corresponding to the cycle category to obtain the corrected fragment health standard value; obtain the first average value of all fragment health standard values ​​for each work cycle as each work The cycle health estimate of the cycle; the cycle health estimate is fitted with the number of cycles corresponding to each cycle health estimate to obtain the battery health standard model corresponding to the cycle category; based on the preset environmental correction function , to revise the battery health standard model, realize the real-time online health status evaluation of the power battery, provide the evaluation results for the user at any time, the use location is not limited, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of battery performance evaluation and prediction, in particular to a construction method, evaluation method and device for a battery health degree evaluation model. Background technique [0002] In recent years, the new energy automobile industry has developed rapidly and experienced explosive growth. As the power system of a car, the health of the power battery is an important factor affecting the service life of a new energy electric vehicle. Therefore, the health status of the power battery has become the most concerned issue for car owners. [0003] In the prior art, battery health status is evaluated by parameters such as internal resistance, capacity, charge-discharge rate, and cycle times. The commonly used evaluation method is physical offline test method. The physical off-line test method is mainly to place the power battery in a set test program under a stable condition, conduct physical experime...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/367G01R31/392G01R31/374
CPCG01R31/006G01R31/367G01R31/374G01R31/392
Inventor 王志刚朱瑞
Owner 优必爱信息技术(北京)有限公司
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