SOC calibration method and system, control device and storage medium
By obtaining the current temperature and status parameters of the battery, and calculating the actual available capacity and SOC of the battery using preset correspondence and formulas, the problem of inaccurate SOC calculation in the prior art is solved, and SOC analysis with high accuracy and low complexity is achieved.
CN119902105APending Publication Date: 2025-04-29JIANGSU TIANHE ENERGY STORAGE CO LTD
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Patent Information
- Application Number
- CN202510071254.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-04-29
AI Technical Summary
Technical Problem
The prior art fails to effectively consider the temperature influence when obtaining the battery SOC, resulting in inaccurate calculation of SOC, large data volume and complex logic, and unable to adapt to ambient temperature changes.
Method used
By obtaining the current temperature value and status parameters of the battery, the actual available capacity and SOC of the battery are calculated using preset correspondence and formulas, including temperature error calibration and program error calibration, adaptive ambient temperature changes.
Benefits of technology
It improves the accuracy of SOC analysis, reduces the computational complexity, and can accurately analyze battery SOC under different temperature environments, suitable for real-time applications.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN119902105A_ABST
Abstract
The invention relates to the technical field of battery systems, particularly provides an SOC calibration method and system, a control device and a storage medium, and aims to solve the technical problem that the obtained battery SOC is inaccurate due to the fact that the temperature influence is not considered in the prior art. In order to achieve the purpose, the SOC calibration method comprises the steps of obtaining a temperature value of a battery at a current moment, and selecting at least one state parameter of the battery based on a preset calibration type; obtaining the actual available capacity of the battery at the current moment based on a preset corresponding relation and the temperature value; and obtaining the actual SOC of the battery at the current moment based on the actual available capacity and the state parameters. According to the method, the available capacity of the battery corresponding to the temperature is determined firstly, and then the actual SOC of the battery is obtained according to the available capacity and the related parameters. According to the SOC analysis method and device, the SOC is analyzed according to the available capacity directly related to the temperature, the influence of the temperature on SOC analysis is considered, and the SOC analysis accuracy is improved.
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