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Power battery thermal management system and method

A technology of battery thermal management and thermal management system, which is applied in the field of power battery thermal management system, can solve the problems of thermal management control strategy hysteresis, unpredictable temperature development trend, etc., to achieve automatic correction, delay battery aging, and good applicability Effect

Active Publication Date: 2019-12-03
BEIHANG UNIV
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  • Application Information

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Problems solved by technology

However, the traditional thermal management method relies solely on the BMS (Battery Management System), which can only be managed based on information such as the current temperature, and cannot predict the future development trend of the temperature, resulting in hysteresis in the thermal management control strategy.

Method used

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  • Power battery thermal management system and method

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Embodiment Construction

[0029] In order to understand the content of the present invention more clearly, it will be described in detail with reference to the drawings and embodiments.

[0030] Such as figure 1 Shown is a schematic diagram of the principle of the power battery thermal management system of the present invention, including four parts: the physical battery thermal management module, the digital battery thermal management module, the cloud analysis module, and the terminal thermal management control module; wherein the physical battery thermal management module generates during operation. The combination of the data and the data simulated by the digital battery thermal management module forms a digital twin relationship. The cloud analysis module analyzes and calculates the appropriate battery thermal management control strategy based on the above data; The battery thermal management module performs thermal management control operations, and the digital battery thermal management module a...

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Abstract

The invention relates to a power battery thermal management system and method. A power battery thermal management system based on cloud control is established by using a digital twinning technology, and meanwhile, actual operation data and simulated operation data are collected for analysis and calculation, so that a reasonable thermal management control strategy is formulated, and the effects ofdelaying battery aging and ensuring system safety are achieved.

Description

technical field [0001] The invention relates to the technical field of power battery management, in particular to a power battery thermal management system and method. Background technique [0002] Due to its high energy density and long cycle life, lithium-ion batteries have been widely used in the field of electric vehicles, but the performance and life of lithium-ion batteries are closely related to the ambient temperature. Lithium-ion batteries will experience accelerated aging under working conditions such as overcharging, high-temperature operation, and low-temperature charging. Under extreme working conditions, thermal safety issues may even occur. Therefore, power batteries need thermal management systems to control their temperature to delay battery aging. and ensure system security. However, the traditional thermal management method relies solely on the BMS (Battery Management System), which can only be managed based on information such as the current temperature,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 杨世春李强伟华旸周思达周新岸闫啸宇
Owner BEIHANG UNIV
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