估算电池可用荷电状态的设备、方法和系统
By combining coulomb counting and a remaining capacity lookup table, abrupt changes in the estimated available state of charge of the battery are eliminated, providing a more accurate determination of the battery state and solving the problem of abrupt changes in the state of charge of the battery in the prior art.
CN116338469BActive Publication Date: 2026-07-17AOTU ELECTRONICS WUHAN
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AOTU ELECTRONICS WUHAN
- Filing Date
- 2020-02-27
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing technologies, the estimated available state of charge of batteries can change abruptly during the conversion process, causing inconvenience or loss for users when operating mobile devices.
Method used
By combining coulomb counting and remaining capacity lookup tables, the available state of charge of the battery is estimated through analog-to-digital conversion circuits and processors, eliminating abrupt changes in the estimated value.
Benefits of technology
It enables accurate estimation of the battery's available state of charge, allowing users to more accurately judge device operation and avoid inconvenience or loss caused by sudden changes.
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Smart Images
Figure CN116338469B_ABST
Abstract
本发明公开了估算电池可用荷电状态的设备、方法和系统，涉及电池领域。该设备包括将指示电池的电压和电流的模拟信号转换为数字信号的模数转换电路；存储荷电状态查找表的存储器；以及处理器，利用数字信号和荷电状态查找表中的至少一项计算电池的衰老因子，以及根据衰老因子更新电池的当前满充绝对电量，以估算电池的当前可用荷电状态。衰老因子包括当前充电衰老因子和当前放电衰老因子中的至少一个，当前充电衰老因子由电池在连续充电状态前后的荷电状态变化量以及在连续充电状态中的充电量确定，当前放电衰老因子由电池在空闲状态时的电池开路电压、在放电状态时的放电初始电压以及放电电流确定。该设备可以估算出更准确的可用荷电状态。
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