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Storage battery undervoltage prediction method

A prediction method and battery voltage technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of inability to predict battery undervoltage state in advance and low reliability of vehicle use, so as to ensure normal operation and improve use reliability sex, to avoid the effect of not being able to activate

Pending Publication Date: 2020-09-01
ZHENGZHOU YUTONG BUS CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to provide a battery undervoltage prediction method, which is used to solve the problem that the battery undervoltage prediction method in the prior art cannot predict the battery undervoltage state in advance, resulting in low reliability of the vehicle.

Method used

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Embodiment Construction

[0018] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings:

[0019] The present invention provides a method for predicting undervoltage of a battery, which is mainly aimed at the battery of a pure electric vehicle. The method includes a historical data acquisition process and an undervoltage judgment process; among them, in the historical data acquisition process, the state of the vehicle and the battery voltage are detected according to the corresponding sampling period within a certain period of time, and the battery voltage abnormality judgment is performed. In this embodiment The certain period of time is one day, and the sampling period is 30 minutes. As other embodiments, the certain period of time can be one and a half days, two days, etc. The sampling period can be shorter than 30 minutes or longer than 30 minutes, and a certain period of time and sampling The cycle can be set according to the ac...

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Abstract

The invention provides a storage battery under-voltage prediction method. The method comprises the following steps: counting the total record number of abnormal storage battery voltage within a certain time period and the record number that the storage battery voltage is less than a set stop operation state voltage threshold; calculating a first record proportion according to the total record number and the record number; when the first record proportion is smaller than or equal to a set first proportion threshold value, determining the undervoltage state of battery. According to the method, the under-voltage state of the voltage of the storage battery can be predicted in advance; when the voltage of the storage battery is predicted to be low, a vehicle owner or a vehicle maintainer is informed of maintenance, and the owner does not need to wait to know that the voltage of the storage battery is very low only at the moment that the voltage of the storage battery is actually very low; the situation that the vehicle cannot be started due to storage battery feeding is avoided, normal operation of the vehicle is guaranteed, and the use reliability of the vehicle is improved.

Description

Technical field [0001] The invention belongs to the technical field of automobile intelligent maintenance, and particularly relates to a method for predicting battery undervoltage. Background technique [0002] The existing battery undervoltage detection method is to judge based on the detected battery voltage, and output an undervoltage signal when the undervoltage condition is met. However, the existing battery under-voltage method is to output an under-voltage signal when the battery voltage is low, and it is impossible to predict the under-voltage state of the battery in advance, and it is impossible to give an under-voltage warning before the low battery voltage occurs. When the vehicle needs to be used, when the battery voltage of the vehicle is low, the vehicle cannot be used, which reduces the reliability of the vehicle. Summary of the invention [0003] The object of the present invention is to provide a method for predicting battery undervoltage, which is used to solve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/3835
Inventor 徐阳赵亚涛王亚松
Owner ZHENGZHOU YUTONG BUS CO LTD
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