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Single battery voltage inconsistency fault prediction method and device and server

A fault prediction and single battery technology, which is applied in battery/fuel cell control devices, forecasting, electric vehicles, etc., can solve the problems of inability to effectively monitor the health status of power batteries, potential safety hazards that cannot be discovered in time, and power battery voltage imbalances, etc. problem, to achieve the effect of effective monitoring of battery health status

Pending Publication Date: 2021-06-01
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unbalanced power battery voltage is one of the safety hazards of power battery failure
[0003] At present, compared with traditional vehicles, the health status of new energy vehicles is opaque, especially the health status of each single battery of the power battery is opaque, and it is impossible to effectively monitor the health status of the power battery. The potential safety hazards brought by the balance cannot be discovered in time, which will lead to the failure of new energy vehicles during driving

Method used

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  • Single battery voltage inconsistency fault prediction method and device and server
  • Single battery voltage inconsistency fault prediction method and device and server
  • Single battery voltage inconsistency fault prediction method and device and server

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0029] figure 1 It is a schematic flow chart of a single battery voltage inconsistent fault prediction method provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation of predicting single battery voltage inconsistent faults. The fault prediction device can be implemented, and the device can be implemented in the form of software and / or hardware, and the hardware can be a server or the like.

[0030] Such as figure 1 As described, the method of this embodiment specifically includes the following steps:

[0031] S110. Acquire working condition data of the vehicle to be predicted at the current moment.

[0032] Wherein, the vehicle to be predicted may be a vehicle that the user is driving, or may be a vehicle driving on a road or parked on a roadside, and the like. The battery pack used in the vehicle to be predicted includes at least two battery cells, and the specific number of the single cells is not limited. The working condition d...

Embodiment 2

[0044] figure 2 It is a schematic flowchart of a single battery voltage inconsistent fault prediction method provided in Embodiment 2 of the present invention. This embodiment is based on the above-mentioned embodiments, and the training method for the voltage inconsistent fault prediction model can be referred to in this embodiment. Technical solutions. Wherein, explanations of terms that are the same as or corresponding to the above embodiments are not repeated here.

[0045] Such as figure 2 As shown, the method specifically includes the following steps:

[0046] S210. Train the initial voltage inconsistent fault prediction model.

[0047] Specifically, in order to make the prediction result of the voltage inconsistent fault prediction model accurate, the initial voltage inconsistent fault prediction model can be trained through the following steps.

[0048] Step 1. Obtain the historical operating condition data corresponding to the vehicle to be predicted and the lab...

Embodiment 3

[0082] image 3 It is a schematic diagram of a single battery voltage inconsistent fault prediction logic framework provided by Embodiment 3 of the present invention. This embodiment is applicable to the situation of predicting single battery voltage inconsistent faults, wherein the same as the above-mentioned embodiments or The explanation of the corresponding terms will not be repeated here.

[0083] Such as image 3 As shown, the fault prediction logic architecture of single battery voltage inconsistency mainly includes four parts: data source layer, data layer, model layer and application layer.

[0084] The data source layer is composed of vehicle data and peripheral data. The data source layer is mainly responsible for data collection and fusion to form a signal upload list, and finally upload the signal upload list through the car cloud protocol.

[0085] Among them, the on-board data includes but not limited to the data collected by the following sensors / actuators: ...

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Abstract

The embodiment of the invention discloses a single battery voltage inconsistent fault prediction method and device and a server. The method comprises the following steps: acquiring working condition data of a to-be-predicted vehicle at the current moment; based on the working condition data, determining a voltage difference value of the single battery voltage of the to-be-predicted vehicle at the current moment; inputting the voltage difference value and the working condition data into a pre-trained voltage inconsistency fault prediction model, and determining a prediction result, wherein the voltage inconsistency fault prediction model is obtained by training a pre-established initial voltage inconsistency fault prediction model according to historical working condition data of the to-be-predicted vehicle and a voltage difference value corresponding to the historical working condition data. According to the technical scheme of the embodiment of the invention, the method achieves the prediction of the voltage inconsistency fault of the single batteries, and achieves the monitoring of the batteries.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of new energy vehicles, and in particular to a method, device and server for fault prediction of voltage inconsistency of a single battery. Background technique [0002] With the rapid development of modern technology and industrial technology, especially information technology, the research on new energy vehicles is gradually becoming mature, but there are still unresolved problems, such as the problems caused by power batteries. According to statistics, more than 60% of the failures of new energy vehicles are caused by power battery failures, and power battery failures pose a great threat to the safety of new energy vehicles. Unbalanced power battery voltage is one of the potential safety hazards of power battery failure. [0003] At present, compared with traditional vehicles, the health status of new energy vehicles is opaque, especially the health status of each single battery of ...

Claims

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Application Information

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IPC IPC(8): G06F30/27G06Q10/04B60L58/10
CPCG06F30/27G06Q10/04B60L58/10Y02T10/70
Inventor 梁小明吴振昕付振王明月彭凯刘相超
Owner CHINA FIRST AUTOMOBILE
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