电池SOC估算方法、装置、电子设备及存储介质
CN116400222BActive Publication Date: 2026-07-17XIAMEN KEHUA DIGITAL ENERGY TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAMEN KEHUA DIGITAL ENERGY TECH CO LTD
- Filing Date
- 2023-03-02
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing battery SOC algorithms are relatively accurate when the battery temperature remains constant, but the calculation deviation is large when the temperature changes during charging or discharging.
Method used
By obtaining the battery's operating temperature and current charge, the actual usable capacity and the usable capacity temperature change value are determined. The estimated battery SOC value is calculated using a relational formula, taking into account the impact of temperature changes on usable capacity.
Benefits of technology
It improves the accuracy of battery SOC calculation and corrects calculation deviations caused by temperature changes.
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Figure CN116400222B_ABST
Abstract
本申请提供一种电池SOC估算方法、装置、电子设备及存储介质。该方法包括：获取电池工作温度和当前电量；根据电池工作温度确定对应的实际可用容量和可用容量温变值；其中，可用容量温变值为电池工作温度与设定温度下的可用容量的差值；根据当前电量、实际可用容量和可用容量温变值确定电池SOC估计值。本申请在估算电池SOC过程中，根据电池工作温度确定对应的实际可用容量和可用容量温变值，并综合当前电量、实际可用容量和可用容量温变值确定电池SOC估计值。与现有电池SOC估算方案相比，本申请引入由温度变化引起的可用容量温变值，起到修正电池SOC的作用，提高电池SOC计算精确度。
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