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Thermal runaway judgment method and device, vehicle and readable storage medium

A thermal runaway, vehicle technology, applied in the direction of measuring devices, instruments, measuring electricity, etc., can solve the problems of emergency repair and fire fighting, and the inability to determine the location of thermal runaway

Pending Publication Date: 2021-07-09
SANY AUTOMOBILE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the related art, in order to detect thermal runaway, a common method is to arrange various types of sensors in the battery system, such as gas smoke sensors, single voltage and temperature sensors, etc. The detection and algorithm diagnosis of thermal runaway will report the signal of thermal runaway to remind the occupants to escape, but the location of thermal runaway cannot be determined, which will cause difficulties for emergency repair and fire fighting

Method used

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  • Thermal runaway judgment method and device, vehicle and readable storage medium
  • Thermal runaway judgment method and device, vehicle and readable storage medium
  • Thermal runaway judgment method and device, vehicle and readable storage medium

Examples

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Embodiment 1

[0055] Such as figure 1 As shown, this embodiment provides a thermal runaway judgment method for a battery system, the battery system includes at least one electrical box group, the electrical box group includes at least one electrical box, the electrical box includes at least one single battery, at least one sensor temperature detector and at least one gas sensor, the method for judging thermal runaway comprises the following steps:

[0056] Step S102, monitoring the voltage signal of the single battery, and determining the electrical box group corresponding to the single battery when the voltage fluctuation of any single battery satisfies the first thermal runaway condition;

[0057] Step S104, monitoring the temperature signal of the temperature-sensitive detector, and determining the electrical box group corresponding to the temperature-sensitive detector when the temperature fluctuation of any temperature-sensitive detector satisfies the second thermal runaway condition; ...

Embodiment 2

[0064] Such as figure 2 As shown, this embodiment provides a method for judging thermal runaway. In addition to the technical features of the above-mentioned embodiments, this embodiment further includes the following technical features:

[0065] Before monitoring the voltage signal of a single battery and determining the electric box group corresponding to the single battery when the voltage fluctuation of any single battery satisfies the first thermal runaway condition, the following steps are also included:

[0066] Step S202, for each electric box group, bind the single battery corresponding to the electric box group;

[0067] Step S204, for each electric box group, bind the temperature detector corresponding to the electric box group;

[0068] Step S206, for each electric box group, bind the gas sensor corresponding to the electric box group.

[0069] In this embodiment, the battery system includes at least one electric box group, at least one temperature-sensitive det...

Embodiment 3

[0071] Such as image 3 As shown, this embodiment provides a method for judging thermal runaway. In addition to the technical features of the above-mentioned embodiments, this embodiment further includes the following technical features:

[0072] The thermal runaway judging method also includes the following steps:

[0073] Step S302, when thermal runaway occurs in the electric box group and the thermal runaway reporting condition is met, a thermal runaway signal of the electric box group is reported; otherwise, it is judged as a misdiagnosis, and the voltage of the single battery and the temperature of the temperature detector are continuously monitored and gas sensor signals.

[0074] In this embodiment, after judging that the thermal runaway of the electrical box group occurs, it is judged whether the thermal runaway reporting condition is met. If the thermal runaway reporting condition is met, the thermal runaway signal of the electrical box group is reported; Thermal ru...

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Abstract

The invention provides a thermal runaway judgment method and device, a vehicle and a readable storage medium. The thermal runaway judgment method comprises the following steps of monitoring a voltage signal of a single battery, and determining an electric box group corresponding to the single battery under the condition that the voltage fluctuation of any single battery meets a first thermal runaway condition, monitoring temperature signals of the temperature-sensitive detectors, and determining an electric box group corresponding to the temperature-sensitive detector under the condition that the temperature fluctuation of any one temperature-sensitive detector meets a second thermal runaway condition, monitoring gas signals of the gas sensors, and under the condition that signal fluctuation of any gas sensor meets a third thermal runaway condition, determining an electric box group corresponding to the gas sensor, and when the voltage signal of any one electric box group meets the first thermal runaway condition, the temperature signal meets the second thermal runaway condition, and the gas signal meets the third thermal runaway condition, determining that the electric box group is subjected to thermal runaway. According to the method, the reliability and accuracy of thermal runaway judgment are effectively improved, and the situations of missing report and false report of thermal runaway are avoided.

Description

technical field [0001] The present invention relates to the technical field of batteries, in particular to a method and device for judging thermal runaway, a vehicle and a readable storage medium. Background technique [0002] In the related art, in order to detect thermal runaway, a common method is to arrange various types of sensors in the battery system, such as gas smoke sensors, single voltage and temperature sensors, etc. The detection and algorithm diagnosis can report the thermal runaway signal to remind the occupants to escape, but it is impossible to determine the location of the thermal runaway, which makes it difficult for emergency repairs and fire fighting. Contents of the invention [0003] The present invention aims to solve at least one of the above technical problems. [0004] Therefore, the first object of the present invention is to provide a method for judging thermal runaway. [0005] A second object of the present invention is to provide a vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/3835G01R31/392G01D21/02
CPCG01R31/3835G01R31/392G01D21/02
Inventor 朱伟强易靖宇王超栋
Owner SANY AUTOMOBILE MFG CO LTD