Vehicle battery temperature equalization control method, control device and storage medium

A battery temperature and balance control technology, applied in battery temperature control, secondary batteries, circuits, etc., can solve the problems of battery charging and discharging performance, life, safety impact, and the inability to correct the temperature difference of the module, and achieve the effect of reducing the temperature difference.

Active Publication Date: 2022-02-25
恒大恒驰新能源汽车研究院(上海)有限公司
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Problems solved by technology

[0011] Due to Q between different modules gen , Q 1 , Q 2 , T 0 They are all different, and will change over time (vibration causes thermal resistance changes, material aging). After the design scheme is frozen, the existing technology cannot correct the temperature difference between the modules. As the use time increases, The temperature difference between battery modules will continue to expand, which will have a negative impact on the charging and discharging performance, life, safety, etc. of the battery

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  • Vehicle battery temperature equalization control method, control device and storage medium
  • Vehicle battery temperature equalization control method, control device and storage medium
  • Vehicle battery temperature equalization control method, control device and storage medium

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Embodiment Construction

[0063] The specific implementation manner of the present application will be further described below in conjunction with the accompanying drawings.

[0064] It is easy to understand that, according to the technical solutions of the present application, those skilled in the art may replace various structural modes and implementation modes without changing the spirit of the present application. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the application, and should not be regarded as the entirety of the application or as a limitation or restriction on the technical solution of the application.

[0065] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom that are mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings, and they are It is a relative concept, so it may change accordingly according to its diff...

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Abstract

The present application discloses a vehicle battery temperature equalization control method, a control device and a storage medium, including acquiring the real-time temperature of each battery module in the vehicle's battery pack after the vehicle's cooling system is started, and calculating multiple The maximum value of the real-time temperature difference between the battery modules is taken as the real-time maximum temperature difference; when the real-time maximum temperature difference is greater than the preset temperature difference threshold, according to the working state of the cooling system and each of the battery modules The real-time temperature adjusts the opening degree of the valve on the cooling circuit corresponding to each of the battery modules. The independent control of the cooling liquid flow on the cooling circuit of each battery module is realized, thereby reducing the temperature difference of each battery module.

Description

technical field [0001] The present application relates to the technical field of battery packs, and in particular to a battery temperature equalization control method, control device and storage medium for a vehicle. Background technique [0002] In new energy vehicles, if the battery temperature of the power battery pack is too high or too low, it will have a negative impact on the charging and discharging performance, life, and safety of the battery. Therefore, the battery temperature is regulated by setting the battery thermal management system (BMS), so that the battery can be in a better temperature range. [0003] At present, the mainstream battery thermal management system adopts a liquid cooling method, and the cooling circuit passes through each battery module to uniformly heat and cool each battery module. In the design process of the battery thermal management system, it is difficult to consider the influence of different heat transfer paths between modules on th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/633H01M10/617H01M10/625H01M10/63H01M10/637H01M10/647H01M10/6554H01M10/6556H01M10/6568
CPCH01M10/633H01M10/617H01M10/625H01M10/63H01M10/637H01M10/647H01M10/6554H01M10/6556H01M10/6568Y02E60/10
Inventor 安益路
Owner 恒大恒驰新能源汽车研究院(上海)有限公司
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