Intelligent online sorting method for retired power batteries

A power battery and intelligent technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of high cost, long cycle, low sorting efficiency, etc., and achieve the effect of ensuring reliability and improving efficiency

Pending Publication Date: 2022-04-15
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide an intelligent online sorting method for decommissioned power batteries, which solves the problems of low efficiency, high cost and long cycle of traditional decommissioned power battery sorting

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  • Intelligent online sorting method for retired power batteries
  • Intelligent online sorting method for retired power batteries
  • Intelligent online sorting method for retired power batteries

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Embodiment Construction

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0028] In addition, the drawings are merely schematic illustrations of embodiments of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically separate entities.

[0029] Such as ...

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Abstract

The embodiment of the invention relates to an intelligent online sorting method for retired power batteries. The intelligent online sorting method comprises the following steps: firstly, importing data through a standardized data interface; then, according to the Thevenin equivalent circuit model, on-line identification of battery parameters is achieved through a self-adaptive algorithm; establishing a system state equation, and realizing battery capacity online estimation based on a filtering algorithm; on the basis of multi-feature fusion, online clustering and sorting of the batteries are realized by using a Kmeans algorithm. According to the method, online intelligent sorting and visualization of large-batch retired batteries can be achieved, the classification and screening efficiency is remarkably improved, the multi-feature fusion technology is combined, battery classification and screening are achieved, and the reliability of the classification result is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of power batteries for new energy vehicles, and in particular relates to an intelligent online sorting method for decommissioned power batteries. Background technique [0002] In order to achieve the goal of carbon neutrality and carbon peak, traditional fuel vehicles are gradually transforming into new energy vehicles represented by electric vehicles (EVs). As the core of electric vehicles, the safety, economy and performance optimization of power battery packs promote the development of electric vehicles, and its cost accounts for 38% of the vehicle cost. [0003] Generally speaking, when the power battery capacity attenuation drops below 80%, it is considered that the power battery has too much attenuation and is no longer suitable for vehicle use. Since conventional vehicle power batteries decay below 80% within 5-8 years, car companies will carry out quality assurance. And over 8 years, batteries with...

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Application Information

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IPC IPC(8): G01R31/387
Inventor 田佳强李思琪刘兴华杨磊文海兵
Owner XIAN UNIV OF TECH
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