Lithium-ion power battery pack full-life-cycle balance control method

A power battery pack, full life cycle technology, applied in the direction of charge equalization circuit, secondary battery, battery circuit device, etc., can solve the problem that the aging rate of the battery pack has not been found, and achieve the effect of small aging rate and prolonging the service life

Active Publication Date: 2019-09-17
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But so far, no research has been found on the balancing strategy aimed at slowing down the aging rate of battery packs.

Method used

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  • Lithium-ion power battery pack full-life-cycle balance control method
  • Lithium-ion power battery pack full-life-cycle balance control method
  • Lithium-ion power battery pack full-life-cycle balance control method

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Embodiment Construction

[0040] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0041] see figure 1 , is a lithium-ion power battery life cycle equalization control method, specifically comprising the following steps:

[0042] Step S1: ...

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Abstract

The invention relates to a lithium-ion power battery pack full-life-cycle balance control method, and belongs to the technical field of battery management. The method comprises the following steps: S1, selecting a batch of single batteries to be tested, and completing battery aging experiments under different conditions; s2, establishing a model for describing the aging rate of the battery according to the obtained aging data of the battery; s3, establishing a target function of model prediction control, and realizing the minimum aging rate of the battery pack; and S4, taking the battery model as a prediction model, and realizing an equalization strategy based on model prediction control. The aging rate of the battery pack can be lower, so that the service life of the battery pack is prolonged.

Description

technical field [0001] The invention belongs to the technical field of battery management, and relates to a life cycle equalization strategy of a lithium-ion power battery pack. Background technique [0002] With the improvement of people's living standards, the consumption of energy resources is increasing, and it has a certain impact on my country's economic development. At the same time, it also makes the problem of environmental pollution more and more serious, and the emission of diesel locomotives is one of the parts that cannot be ignored. Therefore, vigorously promote breakthroughs in various technologies of new energy vehicles. In the overall research and development of new energy vehicles, in addition to the design of motors, transmission systems, and vehicle performance optimization, power batteries play a pivotal role as electric energy storage devices for new energy vehicles. In order to provide high enough voltage and power for electric vehicles, many single ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/42
CPCH02J7/0016H01M10/4207Y02E60/10
Inventor 冯飞胡晓松李佳承武大鹏刘建飞刘波李可心李云隆谢翌杨亚联
Owner CHONGQING UNIV
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