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Safety detection and evaluation method for secondary utilization of electric vehicle battery

An electric vehicle, safety technology, applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problem of whether the old battery can still be used, so as to avoid waste and improve the effect of secondary utilization

Inactive Publication Date: 2021-01-29
HARBIN UNIV OF SCI & TECH
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The main power source of electric vehicles is the battery, and many electric vehicles have the potential to recycle the batteries after they are scrapped. However, there is no good and powerful method to detect whether the old batteries can still be used.

Method used

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  • Safety detection and evaluation method for secondary utilization of electric vehicle battery
  • Safety detection and evaluation method for secondary utilization of electric vehicle battery
  • Safety detection and evaluation method for secondary utilization of electric vehicle battery

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

[0019] Consistency Detection of 3D Vector Model Based on Static Index

[0020] Such as figure 1 As shown, with the internal resistance, capacity, and voltage as indicators, a three-dimensional coordinate system is established, and the space vector from the mean point to the farthest point is the radius of the sphere. The degree of agreement of ideas based on "mean-difference" is uniquely determined by the volume of the sphere.

[0021] Consistency Detection Based on Dynamic Index

[0022] The consistency detection algorithm based on FCM (fuzzy C-means cluste...

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Abstract

The invention discloses a safety detection and evaluation method for secondary utilization of an electric vehicle battery which comprises the steps of firstly establishing a lithium battery formationsafety voltage curve, then extracting related parameters from the lithium battery formation safety voltage curve to serve as reference characteristics, and performing model training and optimization on each parameter of the reference characteristics to obtain an SVM diagnosis model; when a diagnosed battery is detected, detecting a diagnosed voltage curve of the old battery, extracting related parameters from the diagnosed voltage curve to serve as comparison characteristics, and calculating and matching the comparison characteristics and an SVM diagnosis model to obtain a diagnosis result. Whether the old battery can be secondarily applied or not can be detected, secondary utilization of the waste battery can be greatly improved in practice, the method is quite environmentally friendly, and waste is avoided.

Description

technical field [0001] The invention belongs to the technical field of battery secondary utilization, and in particular relates to a safety detection and evaluation method for electric vehicle battery secondary utilization. Background technique [0002] The main power source of electric vehicles is batteries, and many electric vehicles have the potential to be recycled after they are scrapped. However, there is no good and powerful method to detect whether old batteries can still be used. [0003] In view of this, the present invention is proposed. Contents of the invention [0004] The technical problem to be solved in the present invention is to overcome the deficiencies of the prior art and provide a method for detecting and evaluating the safety of the secondary utilization of electric vehicle batteries. In order to solve the above technical problems, the basic idea of ​​the technical solution adopted by the present invention is: [0005] A method for detecting and ev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
CPCG06F18/2321G06F18/2411G06F18/214
Inventor 张政凯孙永全
Owner HARBIN UNIV OF SCI & TECH
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