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发明公开
CN106970328A 一种SOC估算方法及装置 有权

一种SOC估算方法及装置
摘要：
本发明适用于电池管理技术领域，提供了一种SOC估算方法及装置，所述SOC估算方法包括：获取电池电压和荷电状态SOC初始值；利用预配置的卡尔曼滤波器以及安时积分法，根据所述电池电压和SOC初始值，生成SOC估算值；根据当前生成的SOC估算值和上一次生成的SOC估算值，修正当前生成的SOC估算值，得到修正后的SOC估算值；将修正后的SOC估算值输入所述卡尔曼滤波器，以替换当前生成的SOC估算值，实现SOC估算值平稳修正。本发明有益效果在于以下几个方面，详述如下：(1)纠错能力强；(2)能实时在线估计；(3)数据平稳修正；(4)电池模型精准。
摘要（英）：

The invention is applicable to the technical field of battery management, and provides a SOC estimation method and apparatus. The SOC estimation method includes: obtaining a battery voltage and a state of charge (SOC) initial value; generating a SOC estimated value according to the battery voltage and the SOC initial value by employing a pre-configured Kalman filter and an ampere-hour integration method; correcting the currently generated SOC estimated value according to the currently generated SOC estimated value and a previously generated SOC estimated value, and obtaining a corrected SOC estimated value; and inputting the corrected SOC estimated value to the Kalman filter to replace the currently generated SOC estimated value and realize smooth correction of the SOC estimated value. The beneficial effects of the method and apparatus are that firstly, the error correction capability is great; secondly, real-time online estimation can be realized; thirdly, data correction is smooth; and fourthly, a battery model is precise.

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