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Vehicle detection method and device

A vehicle detection and vehicle technology, applied in the field of vehicles, can solve problems such as poor accuracy, battery thermal runaway, insufficient real-time performance, etc., to achieve accurate evaluation and solve the effects of poor accuracy

Pending Publication Date: 2022-04-12
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a vehicle detection method and device to at least solve the technical problem in the related art that battery thermal runaway accidents frequently occur due to poor accuracy, insufficient timeliness, and poor real-time performance of early warning of battery thermal runaway phenomena.

Method used

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Embodiment 1

[0038] According to an embodiment of the present invention, an embodiment of a vehicle detection method is provided. It should be noted that the steps shown in the flowcharts of the drawings can be executed in a computer system such as a set of computer-executable instructions, and, although A logical order is shown in the flowcharts, but in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0039] figure 1 is a flowchart of a vehicle detection method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0040] Step S102, acquiring driving data of the vehicle.

[0041] The vehicle in the above steps refers to a vehicle equipped with a power battery, such as a new energy vehicle, etc. The driving data in the above steps is the real-time vehicle data collected by the car in different states, including but not limited to current, voltage , tem...

Embodiment 2

[0114] According to another aspect of the embodiments of the present invention, there is also provided a vehicle detection device, which can implement the vehicle detection method provided in the above-mentioned embodiment 1, the specific implementation method and preferred application scenarios are the same as the above-mentioned embodiment 1, here I won't go into details.

[0115] Figure 4 is a schematic structural diagram of a vehicle prediction device according to an embodiment of the present invention, such as Figure 4 As shown, the device includes: an acquisition module 42, which is used to acquire the driving data of the vehicle; an extraction module 44, which is used to extract the features of multiple dimensions in the driving data, wherein the features are used to characterize the thermal runaway state of the power battery of the vehicle The processing module 46 is used to use the state evaluation model to process the features of multiple dimensions to obtain the de...

Embodiment 3

[0127] According to another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium, the computer-readable storage medium includes a stored program, wherein, when the program is running, the device where the computer-readable storage medium is located is controlled to execute the first embodiment above vehicle detection method.

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Abstract

The invention discloses a vehicle detection method and device. The method comprises the following steps: acquiring driving data of a vehicle; features of multiple dimensions in the driving data are extracted, and the features are used for representing the thermal runaway state of the power battery of the vehicle; the features of the multiple dimensions are processed through a state evaluation model, a detection result of the vehicle is obtained, the detection result is used for representing whether the vehicle has a thermal runaway phenomenon or not, and the state evaluation model is obtained through machine learning. The technical problem that battery thermal runaway accidents occur frequently due to the fact that early warning of the battery thermal runaway phenomenon is poor in accuracy, not timely enough and poor in real-time performance in the prior art is solved.

Description

technical field [0001] The present invention relates to the field of vehicles, in particular to a vehicle detection method and device. Background technique [0002] With the promotion and popularization of new energy vehicles, their safety has been paid more and more attention. The power battery of new energy electric vehicles is prone to thermal runaway accidents. Battery thermal runaway refers to the phenomenon of spontaneous combustion caused by the common electrothermal positive feedback in bipolar transistors and excessive junction temperature. If the temperature of the battery reaches a certain threshold, the working state of the battery will be completely out of control, causing the internal temperature of the battery to rise sharply, or even burn and explode. Therefore, how to monitor the data indicators related to battery thermal runaway in real time and provide early warning of battery thermal runaway is very important. [0003] For the above problems, no effecti...

Claims

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Application Information

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IPC IPC(8): B60L3/00
CPCB60L3/00H01M10/42Y02T10/70
Inventor 付振梁小明孙建蕾邵天东彭凯刘相超
Owner CHINA FIRST AUTOMOBILE
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