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Battery pack temperature detection system and method

A detection system and detection method technology, applied in secondary battery testing, secondary battery, battery pack components, etc., can solve problems such as vehicle combustion, poor single battery contact, temperature detection blind spots, etc.

Active Publication Date: 2020-07-10
重庆金康赛力斯新能源汽车设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the temperature detection of the power battery pack of new energy electric vehicles is collected through the battery management system. Due to the limited IO port resources of the battery management system, one temperature point is usually used to represent the temperature of six nearby single cells, and it is impossible to fully collect the temperature of each battery pack in the battery pack. The temperature of a single battery and the connecting wires, resulting in a temperature detection blind area, poor contact of the single battery in the blind temperature area or the battery management system cannot timely warn and control due to the battery itself, resulting in the risk of thermal runaway of the battery pack and vehicle combustion.

Method used

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  • Battery pack temperature detection system and method
  • Battery pack temperature detection system and method
  • Battery pack temperature detection system and method

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Embodiment Construction

[0030] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0033] It should be understood that the term "an...

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Abstract

The embodiment of the invention provides a battery pack temperature detection system and method. Temperature of a plurality of temperature points in a battery pack, which is detected by a battery management system, is combined with an infrared thermal imaging total graph of all battery cells in the battery pack; the temperature of each single battery in the battery pack is calculated on the infrared thermal imaging total graph by taking the temperature of the temperature point as the reference temperature, so that the temperature of each single battery in the battery pack can be comprehensively acquired, the temperature abnormity in the battery pack can be early warned and controlled in advance, and the risk of thermal runaway of the battery pack and even vehicle combustion is reduced.

Description

【Technical field】 [0001] The invention relates to the field of new energy technologies, in particular to a battery pack temperature detection system and method. 【Background technique】 [0002] At present, the temperature detection of the power battery pack of new energy electric vehicles is collected through the battery management system. Due to the limited IO port resources of the battery management system, one temperature point is usually used to represent the temperature of six nearby single cells, and it is impossible to fully collect the temperature of each battery pack in the battery pack. The temperature of a single battery and the connecting wires, resulting in a temperature detection blind area, poor contact of the single battery in the blind temperature area or the battery management system cannot timely warn and control due to the battery itself, resulting in the risk of thermal runaway of the battery pack and vehicle combustion. . 【Content of invention】 [000...

Claims

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Application Information

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IPC IPC(8): H01M10/48H01M10/42H01M2/34H01M50/581
CPCH01M10/486H01M10/4285H01M2010/4271H01M2010/4278H01M50/581Y02E60/10
Inventor 代彬曹强马跃强曲玉卓
Owner 重庆金康赛力斯新能源汽车设计院有限公司
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