A control method for a power battery charging monitoring system
A technology of power battery and control method, which is applied to battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of inability to detect charging faults and real-time monitoring, and achieve the effect of convenient use.
Active Publication Date: 2021-08-27
浙江慧众智能装备科技有限公司
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Problems solved by technology
[0004] The present invention mainly solves the technical problems existing in the prior art that the charging current curve of the power battery and the charging voltage curve of the battery cannot be monitored in real time for each charging stage, and the charging fault cannot be detected in which stage it belongs to, and provides a method based on the power The battery charging current curve and the power battery charging voltage curve carry out real-time monitoring of each charging stage of the power battery, especially the monitoring of each charging node for corresponding monitoring, and the control method of the power battery charging monitoring system that can predict fault information
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[0030] according to figure 1 The power battery charging monitoring system shown is characterized in that the power battery charging information curve includes the power battery charging current curve and the power battery charging voltage curve, and the monitoring module (1) includes a A current sensor (3) for input point current and a voltage sensor (4) for detecting the open circuit voltage of the power battery. The MCU main control module (8) is connected to a data storage module (5) for storing historical fault information, and the data storage module (5) is connected to the communication module (2). The communication module (2) is a GPRS module (6) and / or a WiFi module (7).
[0031] The power battery charging process is composed of pre-charging stage, constant current charging stage and constant voltage charging stage. The power battery charging current curve and power battery charging voltage curve are obtained from the summary statistics of historical charging informat...
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The invention relates to a control method for a power battery charging monitoring system, which is characterized in that it includes the following steps: (2) inputting a power battery charging information curve with a certain floating range in the MCU main control module; power battery charging information, and transmit the detected charging information to the MCU main control module; (3) compare the charging information detected by the detection module with the power battery charging information curve input into the MCU main control module with a certain floating range, and then The MCU main control module judges whether there is an abnormality in the charging process according to the comparison information, and if there is an abnormality, the information about the abnormality in the charging of the power battery is sent to the terminal through the communication module. The invention provides a power battery charging monitoring system for real-time monitoring of each charging stage of the power battery according to the charging current curve of the power battery and the charging voltage curve of the power battery, especially focusing on monitoring each charging node for corresponding monitoring, and capable of predicting fault information.
Description
technical field [0001] The invention relates to the field of power batteries, in particular to a control method for a power battery charging monitoring system. Background technique [0002] The power battery is the power source that provides the power source for the tool, and mostly refers to the battery that provides power for electric vehicles, electric trains, electric bicycles, and golf carts. At present, most electric vehicles are basically charged by charging piles. The charging modules used in charging piles generally use pulse width modulation. The circuit is complex and the size is large. It is not easy to integrate the battery monitoring function into the charging module. Therefore, , the above-mentioned charging module only has the charging function, but does not realize the monitoring function of the battery, and is often equipped with a battery inspection system to realize the monitoring of the battery. In order to solve this problem, people have designed a lot...
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IPC IPC(8): H02J7/00
CPCH02J7/0077
Inventor 张云姜丹梁艺忠李强应骏李枫曾爽佘国华嵇伟平
Owner 浙江慧众智能装备科技有限公司