A monitoring and early warning method for electric vehicle battery fire based on dynamic data
A technology for electric vehicles and dynamic data, applied in the direction of testing electrical devices in transportation, measuring electricity, measuring devices, etc., can solve problems such as lack of effective monitoring methods, and achieve the effect of avoiding battery fires
Active Publication Date: 2021-08-13
UNIV OF SCI & TECH BEIJING
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Problems solved by technology
[0005] The purpose of the present invention is to provide a dynamic data-based electric vehicle battery fire monitoring and early warning method to solve the problem of lack of effective monitoring means in the prior art, accurately monitor the electric vehicle battery, and avoid the occurrence of battery fire
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Embodiment Construction
[0035] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0036] Embodiments of the present invention provide a dynamic data-based electric vehicle battery fire monitoring and early warning method, such as figure 1 As shown, the method includes the following steps:
[0037] S1. Prepare the same number of electric vehicle batteries of the same type with state of charge (SOC) of 20%, 50% and 100%, respectively, and divide each battery into several groups;
[0038] Specifically, in this step, 100 electric vehicle batteries of the same type with state of charge (SOC) of 20%, 50% and 100% were prepared, and each battery was divided into two groups on average, 50 in each group.
[0039] S2. Carry out charging and discharging tests on each group of batteries, collect temperature, voltage and curren...
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The invention discloses a dynamic data-based electric vehicle battery fire monitoring and early warning method, which includes: preparing the same number of electric vehicle batteries of the same type with the SOC of 20%, 50% and 100% respectively, and using each The batteries are divided into several groups on average; the charging and discharging tests are carried out on each group of batteries, and the temperature, voltage and current data at different time points in the charging and discharging process are collected and stored in categories; Perform linear fitting analysis on the data to obtain the dynamic data of temperature, voltage, and current of batteries with different capacities during charging and discharging; install temperature-voltage-current sensors and alarm devices on electric vehicle batteries, and when the battery is charging or discharging When the temperature, voltage and current exceed the set critical value, the alarm device will be triggered. The invention can accurately monitor batteries in different states from multiple parameters, and effectively avoid battery fires.
Description
technical field [0001] The invention relates to the technical field of electric power system monitoring and early warning, in particular to a dynamic data-based electric vehicle battery fire monitoring and early warning method. Background technique [0002] With the improvement of people's living standards and quality of life, the requirements for the living environment are getting higher and higher, but the current air quality is getting worse and worse. At present, automobiles have become a means of transportation for ordinary families. With the increasing number of automobiles used, a large number of automobile exhaust emissions have aggravated environmental pollution, which has promoted the emergence of new energy vehicles. [0003] The quality of the battery is directly related to the overall operation of the new energy vehicle. Once a fire or other accident occurs in the vehicle battery, it is easy to cause personal injury or property loss to the driver. Therefore, in...
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IPC IPC(8): G01R31/382G01R31/385G01R31/3842G01R31/36G01R31/00
CPCG01R31/006G01R31/3646G01R31/382G01R31/3842G01R31/385
Inventor 黄国忠王宇欧盛南张顶立郭兆敏
Owner UNIV OF SCI & TECH BEIJING