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Diagnosis method of cell temperature, storage medium and electronic device

A diagnostic method and cell technology, which is applied in battery/fuel cell control devices, electrical devices, electric vehicles, etc., and can solve problems such as inability to diagnose abnormal cell temperature

Active Publication Date: 2022-07-05
BEIJING DIDI INFINITY TECH & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention aims to provide a method for diagnosing the temperature of the battery core, a storage medium, and an electronic device, so as to solve the technical problem in the prior art that the abnormal condition of the temperature of the battery core cannot be diagnosed within a reasonable temperature range

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  • Diagnosis method of cell temperature, storage medium and electronic device
  • Diagnosis method of cell temperature, storage medium and electronic device
  • Diagnosis method of cell temperature, storage medium and electronic device

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Embodiment Construction

[0021] The embodiments of the present invention will be further described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "first", "second" and "third" are only used for description purposes, and cannot be understood as indicating or implying relative importance. Unless the technical solutions in the following embodiments provided by the present invention are contradictory to each other, different technical solutions can be combined with each other, and the technical features in different solutions can be replaced with each other.

[0022] Some embodiments of the present invention provide a method for diagnosing cell temperature, which can be applied to an on-board controller, a cloud server, or a terminal held by a driver, such as figure 1 shown, including the following steps:

[0023] S101: Obtain a battery cell temperature prediction model according to the relationship between historical driv...

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Abstract

The present invention provides a method for diagnosing battery cell temperature, a storage medium and an electronic device, wherein the method includes: obtaining a battery cell temperature value according to the relationship between historical driving data, historical charging data and / or historical battery state data and historical battery cell temperature value of the vehicle. cell temperature prediction model; input the driving data, charging data and / or battery state data of the vehicle at the preselected time into the cell temperature prediction model to obtain the cell temperature prediction value at the preselected time; The relationship between the predicted value of the core temperature and the actual value of the battery core temperature collected at the preselected time determines whether the battery core temperature is abnormal. In the above scheme, the predicted value of the cell temperature is obtained by using the data related to vehicle driving through the cell temperature prediction model, and the diagnosis of the cell temperature value is carried out according to the predicted value of the cell temperature and the collected actual cell temperature value. Diagnosing abnormal conditions within a reasonable temperature range can improve the accuracy of abnormal cell temperature diagnosis results.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a battery core temperature diagnosis method, a storage medium and an electronic device. Background technique [0002] The battery is the energy source of the electric vehicle. The battery includes multiple cells. The temperature of each cell needs to be within a suitable temperature range for the battery to work normally. The temperature of the cell is too high or too low, which will affect the normal driving of the vehicle. If the temperature of the battery is too high, it may cause spontaneous combustion, explosion and other accidents. [0003] In the prior art, a temperature sensor is arranged in the battery, and the temperature sensor collects the temperature value of each cell in the battery and sends the collected temperature value to the battery management system. Within the reasonable temperature range specified by the manufacturer, it is considered that the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/24B60L3/00
CPCB60L58/24B60L3/0046Y02T10/70
Inventor 杨静管伟
Owner BEIJING DIDI INFINITY TECH & DEV