Lithium battery SOC estimation method and system based on thermodynamic model

Lithium battery SOC estimation method and system based on thermodynamic model

The invention provides a lithium battery SOC estimation method and system based on a thermodynamic model, and the method comprises the following steps: 1, building a thermodynamic-electric quantity model of a first lithium battery when the lithium battery is in a discharge state; 2, when the lithium...

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Hauptverfasser: XIONG YONGLIAN, XING HOUCHAO
Format: Patent
Sprache:chi ; eng
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MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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XING HOUCHAO
description The invention provides a lithium battery SOC estimation method and system based on a thermodynamic model, and the method comprises the following steps: 1, building a thermodynamic-electric quantity model of a first lithium battery when the lithium battery is in a discharge state; 2, when the lithium battery is in a charging state, establishing a thermodynamic-electric quantity model of a second lithium battery; 3, when the lithium battery is in an open-circuit standing state, establishing a thermodynamic-electric quantity model of a third lithium battery; and 4, estimating the SOC value of thelithium battery based on the thermodynamic-electric quantity model of the first lithium battery, the thermodynamic-electric quantity model of the second lithium battery and the thermodynamic-electricquantity model of the third lithium battery. According to the lithium battery SOC estimation method based on the thermodynamic models, the three thermodynamic models are made directly based on the lithium battery, the three s
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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Lithium battery SOC estimation method and system based on thermodynamic model
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