Byd Company Limited

Shiwei Shu

Linwang Deng

Tianyu Feng

Sijia Liu

Xiaoqian Li

Yonggang Yin

A battery temperature estimation method includes fitting, when a battery is in an offline state, a first function relationship according to corresponding admittances of the battery at different test temperatures, and obtaining a temperature distribution model of the battery according to the shape and the size of the battery, and determining a second function relationship corresponding to internal temperatures and a surface temperature by combining with the first function relationship. The second function relationship is used for estimating the internal temperature of the battery by using the surface temperature and the admittances of the battery.

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Shenzhen, China

Shiwei Shu