A detection method and system for abnormal voltage acquisition caused by non-self fault of battery

A technology of voltage acquisition and self-fault, which is applied in the direction of measuring current/voltage, measuring electricity, measuring devices, etc., to avoid secondary hazards, facilitate troubleshooting, and reduce single undervoltage effects

Active Publication Date: 2022-07-05
江苏和中普方新能源科技有限公司
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AI Technical Summary

Problems solved by technology

If the user cannot determine whether the failure of the single battery or battery module is caused by its own failure or not, it is impossible to take corresponding measures to solve the failure, and thus it is impossible to avoid safety accidents such as spontaneous combustion of electric vehicles caused by battery failure

Method used

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  • A detection method and system for abnormal voltage acquisition caused by non-self fault of battery
  • A detection method and system for abnormal voltage acquisition caused by non-self fault of battery
  • A detection method and system for abnormal voltage acquisition caused by non-self fault of battery

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Embodiment Construction

[0048] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples are only used to explain the present invention, but not to limit the scope of the present invention.

[0049] like figure 1 As shown in the figure, a method for detecting abnormal voltage acquisition caused by non-self-fault of a battery includes:

[0050] S11: Obtain the working state and voltage of the battery;

[0051] S12: When the voltage satisfies the preset fault condition corresponding to the working state, it is determined that the voltage acquisition abnormality is caused by the non-self fault.

[0052] The method for detecting abnormal voltage collection caused by the battery's non-self fault of the present invention, combined with the charging and discharging characteristics of the battery, can accurately determine whether the battery is not caused by its own fault by detecting whether the voltage of the battery meets the pr...

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Abstract

The invention relates to a detection method and a system for detecting abnormal voltage acquisition caused by a non-self-fault of a battery. The method includes the following steps: acquiring the working state and voltage of the battery, and when the voltage satisfies a preset fault corresponding to the working state When the conditions are met, it is determined that the voltage acquisition abnormality is not caused by its own fault. The detection method of the present invention, combined with the charging and discharging characteristics of the battery, detects whether the voltage of the battery meets the preset fault conditions in the corresponding working state, so as to accurately determine that the battery is not caused by its own fault. The fault alarms such as excessive single pressure difference provide a basis for the battery management strategy, and it is convenient to take corresponding measures to solve the fault, thereby avoiding the secondary harm caused by the battery fault.

Description

technical field [0001] The invention relates to the technical field of battery fault detection, in particular to a detection method and system for abnormal voltage acquisition caused by a non-self fault of a battery. Background technique [0002] At present, with the intensification of environmental problems such as smog weather, greenhouse effect, and energy crisis, people's awareness of sustainable development has gradually increased, and sustainable energy products such as electric vehicles have become increasingly popular. The energy storage device of an electric vehicle is a battery system, which mainly includes modules such as the integration of battery cells or battery modules, battery management systems, high / low voltage circuits, and cooling devices. In recent years, many safety accidents such as spontaneous combustion of electric vehicles have occurred at home and abroad, and many safety accidents such as spontaneous combustion of electric vehicles are caused by th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/3835G01R19/165
CPCG01R19/16528G01R19/16542
Inventor 于静美饶帆顾辉曾纪良
Owner 江苏和中普方新能源科技有限公司
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