Method of diagnosing battery and adaptively adjusting charging modes of the battery

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United States of America Patent

PATENT NO 9812886
SERIAL NO

14973915

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Abstract

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A method of diagnosing a battery and adaptively adjusting charging modes of the battery includes the steps of initially charging the battery using a constant current mode, wherein the battery is charged by a fix current in the constant current mode; monitoring a deterioration index by a battery management system (BMS), the deterioration index including a highest temperature (Tempmax), an instantaneous temperature difference (ΔTemp), an instantaneous voltage difference (ΔV), an instantaneous internal resistance (IRmax), and a state of charge (SoC) of the battery; when Temp exceeds a predetermined temperature threshold, pausing charging the battery; charging the battery by a constant power charging mode when Tempmax becomes smaller than 90% of the predetermined temperature threshold, wherein the battery is charged by a fix electric power in the constant power mode; charging the battery by the constant current charging mode when Tempmax becomes smaller than 50% of the predetermined temperature thresh old.

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Patent Owner(s)

Patent OwnerAddress
NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGYNO 481 CHIA AN SEC CHUNG CHENG RD LONGTAN DIST TAOYUAN CITY 325

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liao, Yu-Min Taoyuan, TW 19 75
Lih, Wen-Chen Taoyuan, TW 6 14
Ma, Shiow-Yueh Taoyuan, TW 1 3
Tseng, Chiu-Hua Taoyuan, TW 1 3

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