Battery self-discharge monitoring method and device, computer equipment and storage medium
A self-discharge and battery technology, applied in the direction of measuring devices, measuring electricity, measuring electric variables, etc., can solve the problems of battery self-discharge, affecting the normal use of electric vehicles, etc., to reduce false alarm rate, improve accuracy and reliability Effect
Pending Publication Date: 2022-05-06
BEIJING CHEHEJIA AUTOMOBILE TECH CO LTD
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Problems solved by technology
The battery of an electric vehicle is composed of multiple battery cells stacked in series. When there is a short-circuit point inside the battery, the positive and negative electrodes are overlapped to generate a short-circuit current, which will cause the self-discharge problem of the battery.
When the battery self-discharge is abnormal, it will affect the normal use of electric vehicles
Method used
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[0029] Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present disclosure and should not be construed as limiting the present disclosure.
[0030] The method, device, computer equipment and storage medium for monitoring battery self-discharge according to the embodiments of the present disclosure will be described below with reference to the accompanying drawings.
[0031] figure 1 It is a schematic flowchart of a method for monitoring battery self-discharge provided by an embodiment of the present disclosure.
[0032] The embodiment of the present disclosure is illustrated by taking the battery self-discharge monitoring method configured in a battery self-di...
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The invention provides a battery self-discharge monitoring method and device, computer equipment and a storage medium, and relates to the technical field of battery management. The method comprises the following steps: acquiring voltage monitoring data and current monitoring data of each battery monomer; according to the voltage monitoring data and the current monitoring data, obtaining a first charge state and a second charge state of each battery monomer; according to each first charge state, determining a first charge state outlier trend of each battery monomer; according to each second charge state, determining a second charge state outlier trend of each battery monomer; and according to the first state-of-charge outlier trend and the second state-of-charge outlier trend corresponding to each single battery, determining whether self-discharge of each single battery is abnormal. Therefore, the self-discharge condition is monitored based on the outlier trend of the state of charge of the battery, and the accuracy and reliability of self-discharge monitoring of the battery are improved.
Description
technical field [0001] The present disclosure relates to the technical field of battery management, and in particular to a battery self-discharge monitoring method, device, computer equipment and storage medium. Background technique [0002] Electric vehicles use batteries as a power source, and have less impact on the environment than traditional vehicles. Therefore, more and more people choose electric vehicles as a means of travel. The battery of an electric vehicle is composed of multiple battery cells stacked in series. When there is a short-circuit point inside the battery, the positive and negative poles are overlapped to generate a short-circuit current, which will cause the self-discharge problem of the battery. When the battery self-discharge is abnormal, it will affect the normal use of electric vehicles. Therefore, it is of great significance to study how to accurately and reliably monitor the self-discharge of the battery. Contents of the invention [0003] ...
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IPC IPC(8): G01R31/382
CPCG01R31/382
Inventor 郑文婕郝一鸣王巍
Owner BEIJING CHEHEJIA AUTOMOBILE TECH CO LTD