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SOC estimation and balance control system and method for electric vehicle battery management system

A battery management system and balanced control technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problem of non-renewable fossil fuels

Inactive Publication Date: 2020-06-26
GUILIN UNIV OF ELECTRONIC TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional cars mainly rely on fossil fuels to provide power, but fossil fuels are non-renewable, and the extensive use of energy will have a great impact on the environment we depend on for survival

Method used

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  • SOC estimation and balance control system and method for electric vehicle battery management system
  • SOC estimation and balance control system and method for electric vehicle battery management system
  • SOC estimation and balance control system and method for electric vehicle battery management system

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Embodiment Construction

[0053] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0054] First, see figure 1 The present invention provides an electric vehicle battery management system SOC estimation and equalization control system 100, including an acquisition module 10, a conditioning module 60, a conversion module 20, a communication module 30, an SOC estimation module 40, a fault processing module 70 and an equalization module 50, The acquisition module 10, the conditioning module 60, the conversion module 20, the communication module 30 and the SOC estimation module 40 are connected in sequence, and the ...

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Abstract

The invention discloses an SOC estimation and equalization control system and method for an electric vehicle battery management system. The system comprises an acquisition module, a conversion module,a communication module, an SOC estimation module and an equalization module, wherein the acquisition module acquires parameter data; the conversion module converts the parameter data to obtain estimated input data; the communication module reads and transmits estimated input data; the SOC estimation module receives the estimation input data and performs estimation processing to obtain SOC value data; when the total current is smaller than zero, the equalization module selects the battery cells with the first target SOC values with the SOC values arranged in the front in an ascending order, and outputs a charging signal for charging; and when the total current is greater than or equal to zero, selecting the battery cells of the second target SOC value with the SOC values arranged in the front in a descending order, and outputting a discharge signal for discharging. By calculating the SOC value of the battery, equalization management is carried out when the electric quantity of the battery is inconsistent, safe use is realized, and the service life of the battery is prolonged.

Description

technical field [0001] The invention relates to the technical field of electric vehicle battery management, in particular to an electric vehicle battery management system SOC estimation and balance control system and method. Background technique [0002] With the development of the times and the continuous progress of society, people's material, cultural level and quality of life are getting higher and higher. The typical representative is reflected in the popularity of cars as a means of transportation. The popularization of automobiles has brought great convenience to our lives, but at the same time it is also facing two major problems, the lack of fossil energy and environmental pollution. Traditional cars mainly rely on fossil fuels to provide power, but fossil fuels are not renewable, and the massive use of energy will have a great impact on the environment we depend on for survival. Electric vehicles (Electric Vehicles, EVs) have the advantages of low emission, low no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/3842G01R31/388
CPCG01R31/3842G01R31/388
Inventor 李少林崔本清刘明亮刘民张晨阳魏红燕
Owner GUILIN UNIV OF ELECTRONIC TECH
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