Battery state monitoring method, edge processor, system and storage medium

A battery management system and battery state technology, applied in battery/fuel cell control devices, instruments, measuring electricity, etc., can solve the problems of reduced battery model accuracy, limited computing resources, and battery model differences.

Active Publication Date: 2020-09-25
HUMAN HORIZONS (JIANGSU) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of implementing the present invention, the inventors found that the prior art has at least the following technical problems: on the one hand, the accuracy of the battery algorithm depends on the accuracy of the battery model, however, in the case of battery aging or extreme environments, the battery The parameters of the model no longer match the cells, and the external characteristics of the battery model are quite different from those of the cells; on the other hand, due to the limited computing resources of the battery management system (BMS, Battery management system), it is difficult for the battery management system to utilize the Real-time operation data to correct the parameters of the battery model; therefore, in the case of battery aging or extreme environments, the accuracy of the battery model decreases, resulting in excessive calculation errors of the state of charge data, making it difficult to accurately monitor the working status of the battery

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  • Battery state monitoring method, edge processor, system and storage medium
  • Battery state monitoring method, edge processor, system and storage medium
  • Battery state monitoring method, edge processor, system and storage medium

Examples

Experimental program
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Embodiment 1

[0093] see figure 1 , is a schematic flowchart of the battery state monitoring method provided in Embodiment 1 of the present invention.

[0094] The battery status monitoring method provided in the embodiment of the present invention can be executed by an edge processor, and this embodiment is described with the edge processor as the execution subject.

[0095] In an embodiment of the present invention, the battery state monitoring method includes the following steps S11-S14:

[0096] S11. Receive the real-time operation data of the battery collected by the battery management system, and the battery state data calculated and obtained by the battery management system according to the real-time operation data and the battery model.

[0097] It can be understood that the battery management system collects the real-time operation data of the battery, calculates the battery status data obtained according to the real-time operation data and the battery model, and sends the real-ti...

Embodiment 2

[0136] see Figure 4 , is a schematic flowchart of the battery state monitoring method provided in Embodiment 2 of the present invention;

[0137] The battery state monitoring method provided by the embodiment of the present invention can be executed by the battery management system, and this embodiment is described with the battery management system as the execution subject.

[0138] In an embodiment of the present invention, the battery state monitoring method includes the following steps S21-S26:

[0139] S21. Collect real-time operating data of the battery, and calculate and obtain battery state data according to the real-time operating data and the battery model.

[0140] Wherein, the real-time operation data includes the current voltage of the battery, the current current of the battery and the current temperature of the battery; the battery status data includes the state of charge data and the state of health data of the battery; then,

[0141] The collecting the real...

Embodiment 3

[0183] see Figure 5 , is a schematic flow chart of the battery state monitoring method provided in Embodiment 3 of the present invention.

[0184] In an embodiment of the present invention, the battery state monitoring method includes the following steps S31-S35:

[0185] S31. The battery management system collects real-time operating data of the battery, calculates and obtains battery state data according to the real-time operating data and the battery model, and sends the real-time operating data and the battery state data to an edge processor.

[0186] Specifically, the real-time operation data includes the current voltage of the battery, the current current of the battery and the current temperature of the battery; the battery status data includes the state of charge data and the state of health data of the battery; then,

[0187] The battery management system collects real-time operating data of the battery, calculates and obtains battery state data according to the rea...

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Abstract

A battery state monitoring method, an edge processor, a system, and a storage medium. The method comprises: receiving real-time operation data of a battery acquired by a battery management system and battery state data calculated and obtained by the battery management system according to the real-time operation data and a battery model (S11); correcting, according to the real-time operation data and the battery state data, a parameter of the battery model, and obtaining the corrected parameter (S12); verifying the corrected parameter according to the real-time operation data (S13); and after the verification succeeds, returning the corrected parameter to the battery management system, such that the battery management system performs re-verification on the corrected parameter, and after the re-verification succeeds, updating the battery model with the corrected parameter, so as to apply the updated battery model in monitoring a state of the battery (S14). The proposed method ensures accuracy of a battery model, and applying the battery model enables accurate monitoring of an operation state of a battery, thereby ensuring safe operation of the battery.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a battery state monitoring method, an edge processor, a system and a storage medium. Background technique [0002] Power batteries are an important part of electric vehicles, especially pure electric vehicles, which are the only power to drive vehicles. Among them, the state of charge data (SOC, State of charge) of the battery is one of the important parameters to characterize the state of the battery. The cruising range of the vehicle can be estimated through the state of charge data, so as to prevent the vehicle from breaking down during driving or the battery from being over-discharged. The battery itself is damaged; therefore, accurate calculation of state-of-charge data is an important guarantee for battery safety. [0003] Currently, battery algorithms are commonly used to calculate the state of charge. However, in the process of implementing the present invention...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01R31/367G01R31/382G01R31/392B60L58/12B60L58/16
CPCB60L58/12B60L58/16G01R31/367G01R31/382G01R31/392Y02T10/70
Inventor王宏伟
OwnerHUMAN HORIZONS (JIANGSU) TECH CO LTD