Experimental method for ventilation function of storage battery box

Abstract

The invention discloses a storage battery box ventilation function experiment method, and relates to the technical field of data processing. Firstly, an experiment starting signal is received through an experiment control platform, performance analysis is carried out on the storage battery box ventilation function experiment equipment, then performance early warning is carried out, potential problems of the equipment can be recognized in advance, and then the environment of the storage battery box ventilation function experiment is analyzed after performance early warning. The environmental interference information of the storage battery box ventilation function experiment is obtained and data acquisition and adjustment are carried out, so that the accuracy of experimental data can be improved, the storage battery box ventilation function experiment is carried out after data acquisition and adjustment, the ventilation speed of the storage battery box is adjusted, data errors caused by too fast or too slow ventilation can be reduced, and the data accuracy is improved. And finally, performing data analysis processing on the air exchange function experiment of the storage battery box to obtain an air exchange function experiment result of the storage battery box and performing air exchange constraint parameter configuration of the storage battery box, thereby being beneficial to improving the accuracy and operability of the experiment result.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, in particular to a battery box ventilation function test method. Background Art

[0002] In the field of battery box ventilation function experimental technology, with the widespread application of batteries in various power energy storage systems, ensuring the efficiency and stability of gas exchange in the battery box has become one of the key technologies to improve battery service life and ensure the safe operation of the power system. Through experimental methods, a systematic analysis of the battery box ventilation function can be carried out, which can monitor various influencing factors in the ventilation process in real time, discover potential problems in time, and then accurately adjust the equipment's ventilation speed, airflow distribution, etc., to ensure that the battery box can operate normally under various working conditions, further improving the safety, stability and efficiency of the power energy storage system.

[0003] Prior art, such as a power battery reliability test bench and test method disclosed in a patent application with publication number CN115327394A, includes a test chamber and a power supply sealed in the test chamber, a programmable electronic load, a temperature control system, a dry-wet control system, a pressure relief / ventilation system, a vibration table, an internal resistance tester, an experimental control and monitoring system, a safety system, a remote status monitoring system, a lighting system, and a vibration table; the experimental control and monitoring system communicates with the programmable electronic load, the temperature control system, the dry-wet control system, the pressure relief / ventilation system, the internal resistance tester, the vibration table, the safety system, and a central data server; the experimental control and monitoring system communicates with the vibration table via Ethernet; and the power battery is fixed to the vibration table by a clamp.

[0004] Combined with the above scheme, it is found that in the field of battery functional experiments, battery reliability is usually analyzed. However, in the battery reliability process, there may be inaccurate measurement data and inaccurate ventilation configuration, resulting in the experimental results being unable to truly reflect the actual operating performance of the battery box. Not only does it make it impossible to accurately control key parameters such as ventilation speed and airflow distribution, it may also affect the battery's service life and overall performance. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a battery box ventilation function test method, which can effectively solve the problems involved in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a battery box ventilation function test method, including receiving an experimental start signal through an experimental control platform, performing performance analysis on the battery box ventilation function test equipment, and then performing a performance warning on the battery box ventilation function test equipment.

[0007] After the performance warning, the environment of the battery box ventilation function experiment is analyzed to obtain environmental interference information of the battery box ventilation function experiment, and data collection and adjustment are performed according to the environmental interference information of the battery box ventilation function experiment.

[0008] After data collection and adjustment, the battery box ventilation function test is carried out, and the ventilation speed of the battery box is adjusted.

[0009] The battery box ventilation function experiment data is analyzed and processed to obtain the battery box ventilation function experiment results, and the battery box ventilation constraint parameters are configured according to the battery box ventilation function experiment results.

[0010] Furthermore, the performance analysis of the battery box ventilation function experimental equipment is performed, and the specific analysis process is: the performance analysis of the battery box ventilation function experimental equipment is performed to obtain performance data of the battery box ventilation function experimental equipment, and the performance data of the battery box ventilation function experimental equipment includes the sensor abnormality coefficient of the battery box ventilation function experimental equipment, the average sensor response time, the air leakage rate and the average vibration frequency.

[0011] A comprehensive analysis is performed on the performance data of the battery box ventilation function experimental equipment to obtain the performance abnormality characteristic value of the battery box ventilation function experimental equipment. The performance abnormality characteristic value of the battery box ventilation function experimental equipment represents the sensor abnormality coefficient, average sensor response time, air leakage rate and average vibration frequency of the battery box ventilation function experimental equipment, which together quantify the performance abnormality degree of the battery box ventilation function experimental equipment.

[0012] Furthermore, the performance warning of the battery box ventilation function experimental equipment is carried out, and the specific process is: comparing the performance abnormality characteristic value of the battery box ventilation function experimental equipment with the set performance abnormality characteristic threshold; if the performance abnormality characteristic value of the battery box ventilation function experimental equipment is higher than the set performance abnormality characteristic threshold, the performance warning information is sent to the mobile terminal for performance warning; otherwise, the subsequent experiment is continued with the current battery box ventilation function experimental equipment.

[0013] Furthermore, the environment of the battery box ventilation function experiment is analyzed after the performance warning. The specific analysis process is: after the performance warning, the environment of the battery box ventilation function experiment is analyzed to obtain the environmental parameters of the battery box ventilation function experiment. The environmental parameters of the battery box ventilation function experiment include the temperature anomaly coefficient, humidity anomaly coefficient, wind speed anomaly coefficient and harmful gas concentration of the battery box ventilation function experiment.

[0014] Based on the environmental parameter processing of the battery box ventilation function experiment, the environmental abnormality characterization value of the battery box ventilation function experiment is obtained. The environmental abnormality characterization value of the battery box ventilation function experiment represents the temperature abnormality coefficient, humidity abnormality coefficient, wind speed abnormality coefficient and harmful gas concentration of the battery box ventilation function experiment, which together quantify the degree of environmental abnormality of the battery box ventilation function experiment.

[0015] Furthermore, the environmental interference information of the battery box ventilation function experiment is obtained, and the specific process is: the environmental interference information of the battery box ventilation function experiment includes an abnormal environment and a normal environment.

[0016] The environmental anomaly characterization threshold stored in the ventilation function experiment database is extracted, and the environmental anomaly characterization value of the battery box ventilation function experiment is compared with the set environmental anomaly characterization threshold. If the environmental anomaly characterization value of the battery box ventilation function experiment is higher than the set environmental anomaly characterization threshold, the environmental interference information of the battery box ventilation function experiment is marked as environmental anomaly; otherwise, the environmental interference information of the battery box ventilation function experiment is marked as normal environment.

[0017] Furthermore, the data collection and adjustment is performed according to the environmental interference information of the battery box ventilation function experiment. The specific process is: extracting the environmental interference information of the battery box ventilation function experiment; if the environmental interference information of the battery box ventilation function experiment indicates that the environment is normal, then continuing to perform data collection and adjustment at the current data collection frequency of the battery box ventilation function experiment.

[0018] If the environmental interference information of the battery box ventilation function experiment is an abnormal environment, the data acquisition frequency of the current battery box ventilation function experiment is added to the set data acquisition frequency supplement value to obtain the data acquisition frequency target value of the battery box ventilation function experiment, and the data acquisition frequency of the current battery box ventilation function experiment is increased to the data acquisition frequency target value of the battery box ventilation function experiment for data acquisition adjustment.

[0019] Furthermore, the ventilation speed of the battery box is adjusted, and the specific process is: after data collection and adjustment, a battery box ventilation function experiment is performed to obtain the ventilation function experimental data of the battery box, and the ventilation function experimental data of the battery box includes the hydrogen concentration, oxygen concentration, temperature average value and humidity average value of the battery box.

[0020] A comprehensive analysis is performed on the experimental data of the ventilation function of the battery box to obtain an evaluation value of the ventilation function of the battery box. The evaluation value of the ventilation function of the battery box represents the hydrogen concentration, oxygen concentration, temperature average value and humidity average value of the battery box, which together quantify the ventilation function of the battery box.

[0021] The ventilation function evaluation value of the battery box is matched with the ventilation speed adjustment value corresponding to each ventilation function evaluation value interval stored in the ventilation function experiment database, and the ventilation speed adjustment value corresponding to the interval of the ventilation function evaluation value of the battery box is counted and recorded as the ventilation speed adjustment value of the battery box.

[0022] The ventilation speed adjustment value of the battery box is added to the current ventilation speed of the battery box to obtain the ventilation speed target execution value of the battery box, and the ventilation speed of the battery box is adjusted up to the ventilation speed target execution value of the battery box.

[0023] Furthermore, the data analysis and processing of the battery box ventilation function experiment is specifically carried out as follows: the data analysis and processing of the battery box ventilation function experiment is carried out to obtain the current ventilation speed of the battery box, and the ventilation speed of the battery box is compared with the set ventilation speed threshold value. If the ventilation speed of the battery box is higher than the set ventilation speed threshold value, the difference between the ventilation speed of the battery box and the set ventilation speed threshold value is recorded as the ventilation control value of the battery box; otherwise, ventilation is continued at the current ventilation speed of the battery box.

[0024] Furthermore, the battery box ventilation function test result is obtained, and the specific process is: the battery box ventilation function test result includes ventilation abnormality and ventilation failure.

[0025] The ventilation control value of the battery box is compared with the set ventilation control threshold. If the ventilation control value of the battery box is higher than the set ventilation control threshold, the battery box ventilation function test result is marked as a ventilation failure; otherwise, the battery box ventilation function test result is marked as a ventilation abnormality.

[0026] Furthermore, the ventilation constraint parameters of the battery box are configured according to the battery box ventilation function test results. The specific process is: extract the battery box ventilation function test results; if the battery box ventilation function test results are ventilation abnormalities, the ventilation constraint parameters of the battery box are configured; if the battery box ventilation function test results are ventilation failures, the failure information is sent to the management terminal for prompting.

[0027] The present invention has the following beneficial effects:

[0028] (1) The present invention provides a battery box ventilation function test method. First, a performance analysis and early warning is performed on the battery box ventilation function test equipment, which can identify possible abnormal conditions of the equipment in advance. Then, after the performance warning, the environment of the battery box ventilation function test is analyzed to improve the accuracy of the test results. Then, the ventilation speed of the battery box is adjusted to help improve the ventilation effect. Finally, the ventilation constraint parameters of the battery box are configured to optimize the operation effect of the ventilation system.

[0029] (2) The present invention performs a performance analysis on the battery box ventilation function test equipment and then provides a performance warning for the battery box ventilation function test equipment, thereby effectively improving the accuracy of the battery box ventilation function test results. The performance warning can identify potential problems in the equipment in advance, thereby reducing experimental errors caused by equipment failure or unstable performance, ensuring that the experiment is carried out in the optimal state, and making the ventilation function test results more reliable.

[0030] (3) The present invention analyzes the environment of the battery box ventilation function experiment after the performance warning, and then performs data acquisition and adjustment. By timely analyzing the environmental interference, it can reduce the impact of external interference on the experimental data and improve the authenticity and accuracy of the test results. Through the analysis of the environment and the precise adjustment of data acquisition, the operability and stability of the battery box ventilation function in practical applications can be improved.

[0031] (4) The present invention conducts a battery box ventilation function experiment after data acquisition and adjustment, and then adjusts the ventilation speed of the battery box. By optimizing the ventilation speed, the accuracy of air circulation speed control can be improved, ensuring that the air flow distribution in the experimental environment is more uniform, thereby reducing experimental errors caused by uneven or too fast or too slow ventilation, reducing problems such as temperature fluctuations or gas accumulation caused by improper ventilation, and further improving the reliability and stability of the experimental results.

[0032] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the method of the present invention. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figure 1 As shown, an embodiment of the present invention provides a technical solution: a battery box ventilation function test method, including receiving an experiment start signal through an experiment control platform, performing performance analysis on the battery box ventilation function test equipment, and then performing a performance warning on the battery box ventilation function test equipment.

[0036] After the performance warning, the environment of the battery box ventilation function experiment is analyzed to obtain environmental interference information of the battery box ventilation function experiment, and data collection and adjustment are performed according to the environmental interference information of the battery box ventilation function experiment.

[0037] After data collection and adjustment, the battery box ventilation function test is carried out, and the ventilation speed of the battery box is adjusted.

[0038] The battery box ventilation function experiment data is analyzed and processed to obtain the battery box ventilation function experiment results, and the battery box ventilation constraint parameters are configured according to the battery box ventilation function experiment results.

[0039] Specifically, a performance analysis is performed on the battery box ventilation function experimental equipment. The specific analysis process is: the performance analysis is performed on the battery box ventilation function experimental equipment to obtain performance data of the battery box ventilation function experimental equipment. The performance data of the battery box ventilation function experimental equipment includes the sensor abnormality coefficient of the battery box ventilation function experimental equipment, the average sensor response time, the air leakage rate and the average vibration frequency.

[0040] It should be noted that the sensor anomaly coefficient of the battery box ventilation function experimental equipment indicates the degree of deviation of the sensor. The standard value and measurement value of the sensor are measured by standard measuring instruments and sensors respectively. The ratio of the absolute value of the difference between the measurement value and the standard value of the sensor to the standard value is recorded as the sensor anomaly coefficient. The average sensor response time of the battery box ventilation function experimental equipment refers to the time from the input signal being applied to the sensor to the beginning of obvious changes. The response time of different sensors can be directly obtained through the data acquisition system, and the average value is taken to obtain the average sensor response time. The air leakage rate of the battery box ventilation function experimental equipment refers to the proportion of the air leakage in the battery box to the total gas volume. The gas flow rate within a certain period of time is measured by a gas flow meter, and the ratio of the leakage gas flow rate to the box volume is recorded as the air leakage rate. The average vibration frequency of the battery box ventilation function experimental equipment refers to the vibration frequency generated by the components in the battery box during the ventilation process. The vibration frequencies at different positions can be directly measured by a vibration sensor, and the average vibration frequency is obtained by taking the average value.

[0041] A comprehensive analysis is performed on the performance data of the battery box ventilation function experimental equipment to obtain the performance abnormality characteristic value of the battery box ventilation function experimental equipment. The performance abnormality characteristic value of the battery box ventilation function experimental equipment represents the sensor abnormality coefficient, average sensor response time, air leakage rate and average vibration frequency of the battery box ventilation function experimental equipment, which together quantify the performance abnormality degree of the battery box ventilation function experimental equipment.

[0042] In this embodiment, the abnormal performance characteristic value of the battery box ventilation function experimental equipment can be obtained by the following analysis method. The specific analysis conditions are as follows:

[0043]

[0044] Wherein, τ represents the performance abnormality characteristic value of the battery box ventilation function test equipment, H1 represents the sensor abnormality coefficient of the battery box ventilation function test equipment, ω1 represents the performance abnormality impact factor corresponding to the set sensor abnormality coefficient, H2 represents the average sensor response time of the battery box ventilation function test equipment, ω2 represents the performance abnormality impact factor corresponding to the set unit sensor response time, H3 represents the air leakage rate of the battery box ventilation function test equipment, ω3 represents the performance abnormality impact factor corresponding to the set air leakage rate, H4 represents the average vibration frequency of the battery box ventilation function test equipment, ω4 represents the performance abnormality impact factor corresponding to the set unit vibration frequency, and e represents a natural constant.

[0045] It should be added that, in this embodiment, the performance abnormality impact factor corresponding to the preset sensor abnormality coefficient, the performance abnormality impact factor corresponding to the unit sensor response time, the performance abnormality impact factor corresponding to the air leakage rate, and the performance abnormality impact factor corresponding to the unit vibration frequency are obtained from the ventilation function experiment database.

[0046] It needs to be explained that the performance abnormality influencing factors corresponding to the sensor abnormality coefficient, unit sensor response time, air leakage rate and unit vibration frequency are respectively used to adjust the importance of the sensor abnormality coefficient, average sensor response time, air leakage rate and average vibration frequency of the battery box ventilation function experimental equipment in the process of analyzing and obtaining the performance abnormality characteristic value. In the ventilation function experiment database, there is a pre-set mapping relationship between the performance data of the battery box ventilation function experimental equipment and the corresponding performance abnormality influencing factors. By matching the performance data of the battery box ventilation function experimental equipment with the pre-set mapping relationship, the performance abnormality influencing factors corresponding to the sensor abnormality coefficient, unit sensor response time, air leakage rate and unit vibration frequency can be obtained.

[0047] In this embodiment, there is a correlation between the sensor abnormality coefficient, average sensor response time, air leakage rate and average vibration frequency of the battery box ventilation function experimental equipment, and they do not exist independently. For example, when the sensor abnormality coefficient is high, it may mean that the response speed and accuracy of the sensor are reduced, which may cause the average time of the sensor response to increase. The increase in the sensor abnormality coefficient may mean that the system has inaccuracies in detecting air circulation conditions, that is, the reduction in sensor accuracy may cause inaccurate monitoring of air leakage. Excessive average vibration frequency may reduce the detection accuracy of the sensor, causing response delays, and then causing changes in the average sensor response time. Comprehensive analysis of the performance abnormality characteristic value of the battery box ventilation function experimental equipment can reflect the degree of performance abnormality of the battery box ventilation function experimental equipment.

[0048] Specifically, a performance warning is performed on the battery box ventilation function experimental equipment. The specific process is: comparing the performance abnormality characteristic value of the battery box ventilation function experimental equipment with the set performance abnormality characteristic threshold. If the performance abnormality characteristic value of the battery box ventilation function experimental equipment is higher than the set performance abnormality characteristic threshold, the performance warning information is sent to the mobile terminal for performance warning. Otherwise, subsequent experiments are continued with the current battery box ventilation function experimental equipment.

[0049] Specifically, after the performance warning, the environment of the battery box ventilation function experiment is analyzed. The specific analysis process is: after the performance warning, the environment of the battery box ventilation function experiment is analyzed to obtain the environmental parameters of the battery box ventilation function experiment. The environmental parameters of the battery box ventilation function experiment include the temperature anomaly coefficient, humidity anomaly coefficient, wind speed anomaly coefficient and harmful gas concentration of the battery box ventilation function experiment.

[0050] It should be noted that the temperature anomaly coefficient of the battery box ventilation function experiment is used to measure the impact of the ambient temperature deviating from the standard value on the ventilation function. The actual ambient temperature can be measured using a temperature sensor, and the ratio of the absolute value of the difference between the actual ambient temperature and the reference ambient temperature to the reference ambient temperature is recorded as the temperature anomaly coefficient. The humidity anomaly coefficient of the battery box ventilation function experiment is used to measure the impact of the ambient humidity deviating from the standard value on the ventilation function. The actual ambient humidity can be measured using a humidity sensor, and the ratio of the absolute value of the difference between the actual ambient humidity and the reference ambient humidity to the reference ambient humidity is recorded as the humidity anomaly coefficient. The wind speed anomaly coefficient of the battery box ventilation function experiment is used to measure the impact of the ambient wind speed deviating from the standard value on the ventilation function. The actual ambient wind speed can be measured using a wind speed sensor, and the ratio of the absolute value of the difference between the actual ambient wind speed and the reference ambient wind speed to the reference ambient wind speed is recorded as the humidity anomaly coefficient. The harmful gas concentration of the battery box ventilation function experiment is used to measure the impact of the concentration of harmful gases (such as carbon dioxide, carbon monoxide, and nitric oxide) in the environment on the ventilation function. The harmful gas concentration can be directly measured using a gas detector.

[0051] Based on the environmental parameter processing of the battery box ventilation function experiment, the environmental abnormality characterization value of the battery box ventilation function experiment is obtained. The environmental abnormality characterization value of the battery box ventilation function experiment represents the temperature abnormality coefficient, humidity abnormality coefficient, wind speed abnormality coefficient and harmful gas concentration of the battery box ventilation function experiment, which together quantify the degree of environmental abnormality of the battery box ventilation function experiment.

[0052] In this embodiment, the environmental abnormality characteristic value of the battery box ventilation function experiment can be obtained by the following analysis method. The specific analysis conditions are as follows:

[0053]

[0054] Where, δ represents the environmental anomaly characteristic value of the battery box ventilation function test, G1 represents the temperature anomaly coefficient of the battery box ventilation function test, It represents the environmental abnormality assessment factor corresponding to the set temperature abnormality coefficient, G2 represents the humidity abnormality coefficient of the battery box ventilation function experiment, It represents the environmental abnormality assessment factor corresponding to the set humidity abnormality coefficient, G3 represents the wind speed abnormality coefficient of the battery box ventilation function experiment, It represents the environmental abnormality assessment factor corresponding to the set wind speed abnormality coefficient, G4 represents the harmful gas concentration of the battery box ventilation function experiment, Indicates the environmental abnormality assessment factor corresponding to the set unit harmful gas concentration.

[0055] It should be added that, in this embodiment, the environmental abnormality assessment factor corresponding to the preset temperature abnormality coefficient, the environmental abnormality assessment factor corresponding to the humidity abnormality coefficient, the environmental abnormality assessment factor corresponding to the wind speed abnormality coefficient and the environmental abnormality assessment factor corresponding to the unit harmful gas concentration are obtained from the ventilation function experiment database.

[0056] It needs to be explained that the environmental anomaly assessment factors corresponding to the temperature anomaly coefficient, humidity anomaly coefficient, wind speed anomaly coefficient and unit harmful gas concentration are respectively used to adjust the importance of the temperature anomaly coefficient, humidity anomaly coefficient, wind speed anomaly coefficient and harmful gas concentration of the battery box ventilation function experiment in the process of analyzing and obtaining the environmental anomaly characterization value. In the ventilation function experiment database, there is a pre-set mapping relationship between the environmental parameters of the battery box ventilation function experiment and the corresponding environmental anomaly assessment factors. By matching the environmental parameters of the battery box ventilation function experiment with the pre-set mapping relationship, the environmental anomaly assessment factors corresponding to the temperature anomaly coefficient, humidity anomaly coefficient, wind speed anomaly coefficient and unit harmful gas concentration can be obtained.

[0057] In this embodiment, the temperature anomaly coefficient, humidity anomaly coefficient, wind speed anomaly coefficient and harmful gas concentration of the battery box ventilation function experiment are correlated and do not exist independently. For example, when the wind speed is high, the heat inside the battery box can be dissipated to reduce the temperature anomaly coefficient. The high wind speed can also accelerate the evaporation of moisture, which may lead to a decrease or increase in the humidity anomaly coefficient. The high humidity environment may affect the decomposition or conversion of harmful gases, thereby affecting the concentration of harmful gases. Comprehensive analysis of the environmental anomaly characterization value of the battery box ventilation function experiment can reflect the overall abnormality level of the experimental environment.

[0058] Specifically, the environmental interference information of the battery box ventilation function experiment is obtained, and the specific process is: the environmental interference information of the battery box ventilation function experiment includes an abnormal environment and a normal environment.

[0059] The environmental anomaly characterization threshold stored in the ventilation function experiment database is extracted, and the environmental anomaly characterization value of the battery box ventilation function experiment is compared with the set environmental anomaly characterization threshold. If the environmental anomaly characterization value of the battery box ventilation function experiment is higher than the set environmental anomaly characterization threshold, the environmental interference information of the battery box ventilation function experiment is marked as environmental anomaly; otherwise, the environmental interference information of the battery box ventilation function experiment is marked as normal environment.

[0060] Specifically, data collection and adjustment are performed according to the environmental interference information of the battery box ventilation function experiment. The specific process is: extract the environmental interference information of the battery box ventilation function experiment. If the environmental interference information of the battery box ventilation function experiment is that the environment is normal, continue to perform data collection and adjustment at the current data collection frequency of the battery box ventilation function experiment.

[0061] If the environmental interference information of the battery box ventilation function experiment is an abnormal environment, the data acquisition frequency of the current battery box ventilation function experiment is added to the set data acquisition frequency supplement value to obtain the data acquisition frequency target value of the battery box ventilation function experiment, and the data acquisition frequency of the current battery box ventilation function experiment is increased to the data acquisition frequency target value of the battery box ventilation function experiment for data acquisition adjustment.

[0062] It should be noted that the analysis of the environmental parameters of the battery box ventilation function experiment can reflect the degree of environmental abnormality of the battery box ventilation function experiment. If the environmental abnormality of the battery box ventilation function experiment is high and subsequent control is performed with the original default data acquisition frequency, it may lead to insufficient accuracy of the collected data and even affect the reliability of the experimental results and the responsiveness of the control system. Therefore, it is necessary to adjust the data acquisition frequency in combination with the environmental abnormality characterization value of the battery box ventilation function experiment. The higher the environmental abnormality characterization value, the more abnormal the environment of the battery box ventilation function experiment. Adjusting the data acquisition frequency of the battery box ventilation function experiment can improve the accuracy of data acquisition and ensure that key parameter changes can be captured in time under high environmental abnormality conditions, thereby improving the accuracy of the experimental results and the efficiency of the control system.

[0063] Specifically, the ventilation speed of the battery box is adjusted. The specific process is: after data collection and adjustment, a battery box ventilation function experiment is performed to obtain the battery box ventilation function experimental data, wherein the battery box ventilation function experimental data includes the hydrogen concentration, oxygen concentration, temperature average value and humidity average value of the battery box.

[0064] It should be noted that the hydrogen concentration of the battery box refers to the volume fraction of hydrogen in the air inside the battery box, and the oxygen concentration of the battery box refers to the volume fraction of oxygen in the air inside the battery box. The hydrogen concentration and oxygen concentration of the battery box can be directly measured by a hydrogen sensor and an oxygen sensor. The average temperature of the battery box refers to the temperature level inside the battery box. Temperature sensors at multiple locations can be used to measure the temperatures at different locations, and the average value is obtained by taking the average value. The average humidity of the battery box refers to the humidity level inside the battery box. Humidity sensors at multiple locations can be used to measure the humidity at different locations, and the average value is obtained by taking the average value.

[0065] A comprehensive analysis is performed on the experimental data of the ventilation function of the battery box to obtain an evaluation value of the ventilation function of the battery box. The evaluation value of the ventilation function of the battery box represents the hydrogen concentration, oxygen concentration, temperature average value and humidity average value of the battery box, which together quantify the ventilation function of the battery box.

[0066] In this embodiment, the ventilation function evaluation value of the battery box can be obtained by the following analysis method, and the specific analysis conditions are as follows:

[0067]

[0068] Wherein, γ represents the ventilation function evaluation value of the battery box, K1 represents the hydrogen concentration of the battery box, ΔK1 represents the set reference hydrogen concentration, θ1 represents the evaluation factor corresponding to the set hydrogen concentration, K2 represents the oxygen concentration of the battery box, ΔK2 represents the set reference oxygen concentration, θ2 represents the evaluation factor corresponding to the set oxygen concentration, K3 represents the average temperature of the battery box, ΔK3 represents the set reference temperature, θ3 represents the evaluation factor corresponding to the set average temperature, K4 represents the average humidity of the battery box, ΔK4 represents the set reference humidity, and θ4 represents the evaluation factor corresponding to the set average humidity.

[0069] It should be added that, in this embodiment, the preset evaluation factors corresponding to the hydrogen concentration, the oxygen concentration, the average temperature, and the average humidity are obtained from the ventilation function experiment database.

[0070] It should be explained that the evaluation factors corresponding to the hydrogen concentration, oxygen concentration, average temperature and average humidity are respectively used to adjust the importance of the hydrogen concentration, oxygen concentration, average temperature and average humidity of the battery box in the process of analyzing and obtaining the ventilation function evaluation value. In the ventilation function experiment database, there is a pre-set mapping relationship between the ventilation function experiment data of the battery box and the corresponding evaluation factors. By matching the ventilation function experiment data of the battery box with the pre-set mapping relationship, the evaluation factors corresponding to the hydrogen concentration, oxygen concentration, average temperature and average humidity can be obtained.

[0071] In this embodiment, the hydrogen concentration, oxygen concentration, temperature average and humidity average of the battery box are correlated and do not exist independently. For example, the battery releases hydrogen during the charging and discharging process. When the battery is charging, oxygen will participate in the electrolysis reaction and may produce a chemical reaction with the hydrogen. Therefore, during the battery reaction process, the increase in hydrogen concentration is usually accompanied by a decrease in oxygen concentration. Excessive temperature may cause large changes in humidity, which in turn affects the gas concentration and ventilation effect in the battery box. Comprehensive analysis can obtain the ventilation function evaluation value of the battery box, which can evaluate the effectiveness of the battery box ventilation system.

[0072] The ventilation function evaluation value of the battery box is matched with the ventilation speed adjustment value corresponding to each ventilation function evaluation value interval stored in the ventilation function experiment database, and the ventilation speed adjustment value corresponding to the interval of the ventilation function evaluation value of the battery box is counted and recorded as the ventilation speed adjustment value of the battery box.

[0073] The ventilation speed adjustment value of the battery box is added to the current ventilation speed of the battery box to obtain the ventilation speed target execution value of the battery box, and the ventilation speed of the battery box is adjusted up to the ventilation speed target execution value of the battery box.

[0074] It should be noted that the analysis of the experimental data of the ventilation function of the battery box can reflect the degree of abnormality of the ventilation function of the battery box. If the degree of abnormality of the ventilation function of the battery box is high and subsequent adjustments are made with the original default ventilation speed, insufficient ventilation may result, and may even affect the heat dissipation effect and safety of the battery, causing battery overheating, reduced lifespan, or even safety hazards. Therefore, it is necessary to adjust the ventilation speed in combination with the ventilation function evaluation value of the battery box. The lower the ventilation function evaluation value, the more abnormal the ventilation function of the battery box, and the larger the ventilation speed adjustment value obtained by matching. Adjusting the ventilation speed of the battery box can effectively improve the ventilation efficiency, improve the stability of the temperature and gas concentration in the battery box, and ensure the normal operation of the battery and extend its service life.

[0075] Specifically, data analysis and processing are performed on the battery box ventilation function experiment. The specific analysis process is: data analysis and processing are performed on the battery box ventilation function experiment to obtain the current ventilation speed of the battery box, and the ventilation speed of the battery box is compared with the set ventilation speed threshold. If the ventilation speed of the battery box is higher than the set ventilation speed threshold, the difference between the ventilation speed of the battery box and the set ventilation speed threshold is recorded as the ventilation control value of the battery box. Otherwise, ventilation continues at the current ventilation speed of the battery box.

[0076] Specifically, the battery box ventilation function test result is obtained, and the specific process is: the battery box ventilation function test result includes ventilation abnormality and ventilation failure.

[0077] The ventilation control value of the battery box is compared with the set ventilation control threshold. If the ventilation control value of the battery box is higher than the set ventilation control threshold, the battery box ventilation function test result is marked as a ventilation failure; otherwise, the battery box ventilation function test result is marked as a ventilation abnormality.

[0078] Specifically, the ventilation constraint parameters of the battery box are configured according to the battery box ventilation function test results. The specific process is: extract the battery box ventilation function test results. If the battery box ventilation function test results are ventilation abnormalities, the ventilation constraint parameters of the battery box are configured. If the battery box ventilation function test results are ventilation failures, the failure information is sent to the management terminal for prompting.

[0079] It should be added that the ventilation constraint parameters of the battery box are configured. The specific process is that the ventilation constraint parameters of the battery box include the temperature threshold and current threshold of the battery box. The current temperature threshold and current threshold of the battery box are subtracted from the set temperature threshold impairment value and current threshold impairment value to obtain the temperature target threshold and current target threshold of the battery box. The temperature threshold and current threshold of the battery box are lowered to the temperature target threshold and current target threshold of the battery box for configuration.

[0080] It should be noted that the analysis of the ventilation speed of the battery box can reflect the degree of abnormality of the ventilation function of the battery box. If the degree of abnormality of the ventilation function of the battery box is high, subsequent adjustment with the original default ventilation constraint parameters of the battery box may result in insufficient ventilation. Excessive hydrogen or other harmful gases may accumulate in the battery box, increasing the risk of explosion and affecting the safety of the surrounding environment. Therefore, it is necessary to configure the ventilation constraint parameters of the battery box in combination with the ventilation speed of the battery box, which can optimize the ventilation speed and ventilation frequency to ensure that the harmful gases and overheated gases in the battery box can be discharged in time.

[0081] It should be noted that a battery box ventilation function test method further includes a ventilation function test database for storing a first parameter set, a second parameter set, a third parameter set, and a fourth parameter set obtained by analyzing historical data.

[0082] The first parameter set includes the performance abnormality impact factor corresponding to the sensor abnormality coefficient, the performance abnormality impact factor corresponding to the unit sensor response time, the performance abnormality impact factor corresponding to the air leakage rate, the performance abnormality impact factor corresponding to the unit vibration frequency and the performance abnormality characteristic threshold.

[0083] The second parameter set includes the environmental anomaly assessment factor corresponding to the temperature anomaly coefficient, the environmental anomaly assessment factor corresponding to the humidity anomaly coefficient, the environmental anomaly assessment factor corresponding to the wind speed anomaly coefficient, the environmental anomaly assessment factor corresponding to the unit harmful gas concentration, the environmental anomaly characterization threshold and the data collection frequency supplementary value.

[0084] The third parameter set includes the evaluation factor corresponding to the hydrogen concentration, the evaluation factor corresponding to the oxygen concentration, the evaluation factor corresponding to the average temperature, the evaluation factor corresponding to the average humidity, the reference hydrogen concentration, the reference oxygen concentration, the reference temperature, the reference humidity, and the ventilation speed adjustment value corresponding to each ventilation function evaluation value interval.

[0085] The fourth parameter set includes a ventilation rate threshold, a ventilation control threshold, a temperature threshold impairment value, and a current threshold impairment value.

[0086] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0087] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A battery box ventilation function test method, characterized in that: include: The experimental control platform receives the experimental start signal, performs performance analysis on the battery box ventilation function experimental equipment, and then provides performance warning for the battery box ventilation function experimental equipment; After the performance warning, the environment of the battery box ventilation function experiment is analyzed to obtain the environmental interference information of the battery box ventilation function experiment, and data collection and adjustment are performed according to the environmental interference information of the battery box ventilation function experiment; After data collection and adjustment, conduct a battery box ventilation function test, and then adjust the battery box ventilation speed; The battery box ventilation function experiment data is analyzed and processed to obtain the battery box ventilation function experiment results, and the battery box ventilation constraint parameters are configured according to the battery box ventilation function experiment results.

2. A battery box ventilation function test method according to claim 1, characterized in that: The performance analysis of the battery box ventilation function experimental equipment is carried out as follows: Performing a performance analysis on the battery box ventilation function test equipment to obtain performance data of the battery box ventilation function test equipment, wherein the performance data of the battery box ventilation function test equipment includes a sensor abnormality coefficient, an average sensor response time, an air leakage rate, and an average vibration frequency of the battery box ventilation function test equipment; A comprehensive analysis is performed on the performance data of the battery box ventilation function experimental equipment to obtain the performance abnormality characteristic value of the battery box ventilation function experimental equipment. The performance abnormality characteristic value of the battery box ventilation function experimental equipment represents the sensor abnormality coefficient, average sensor response time, air leakage rate and average vibration frequency of the battery box ventilation function experimental equipment, which together quantify the performance abnormality degree of the battery box ventilation function experimental equipment.

3. A battery box ventilation function test method according to claim 2, characterized in that: The specific process of the battery box ventilation function test equipment performance warning is as follows: The performance abnormality characteristic value of the battery box ventilation function experimental equipment is compared with the set performance abnormality characteristic threshold. If the performance abnormality characteristic value of the battery box ventilation function experimental equipment is higher than the set performance abnormality characteristic threshold, the performance warning information is sent to the mobile terminal for performance warning. Otherwise, the subsequent experiment will continue with the current battery box ventilation function experimental equipment.

4. A battery box ventilation function test method according to claim 1, characterized in that: After the performance warning, the environment of the battery box ventilation function experiment is analyzed. The specific analysis process is as follows: After the performance warning, the environment of the battery box ventilation function test is analyzed to obtain environmental parameters of the battery box ventilation function test, wherein the environmental parameters of the battery box ventilation function test include a temperature anomaly coefficient, a humidity anomaly coefficient, a wind speed anomaly coefficient, and a harmful gas concentration of the battery box ventilation function test; Based on the environmental parameter processing of the battery box ventilation function experiment, the environmental abnormality characterization value of the battery box ventilation function experiment is obtained. The environmental abnormality characterization value of the battery box ventilation function experiment represents the temperature abnormality coefficient, humidity abnormality coefficient, wind speed abnormality coefficient and harmful gas concentration of the battery box ventilation function experiment, which together quantify the degree of environmental abnormality of the battery box ventilation function experiment.

5. A battery box ventilation function test method according to claim 4, characterized in that: The specific process of obtaining the environmental interference information of the battery box ventilation function experiment is as follows: The environmental interference information of the battery box ventilation function experiment includes abnormal environment and normal environment; The environmental anomaly characterization threshold stored in the ventilation function experiment database is extracted, and the environmental anomaly characterization value of the battery box ventilation function experiment is compared with the set environmental anomaly characterization threshold. If the environmental anomaly characterization value of the battery box ventilation function experiment is higher than the set environmental anomaly characterization threshold, the environmental interference information of the battery box ventilation function experiment is marked as environmental anomaly; otherwise, the environmental interference information of the battery box ventilation function experiment is marked as normal environment.

6. A battery box ventilation function test method according to claim 5, characterized in that: The data acquisition and adjustment is performed based on the environmental interference information of the battery box ventilation function experiment. The specific process is as follows: Extracting environmental interference information of the battery box ventilation function experiment; if the environmental interference information of the battery box ventilation function experiment indicates that the environment is normal, continuing to adjust data collection at the current data collection frequency of the battery box ventilation function experiment; If the environmental interference information of the battery box ventilation function experiment is an abnormal environment, the data acquisition frequency of the current battery box ventilation function experiment is added to the set data acquisition frequency supplement value to obtain the data acquisition frequency target value of the battery box ventilation function experiment, and the data acquisition frequency of the current battery box ventilation function experiment is increased to the data acquisition frequency target value of the battery box ventilation function experiment for data acquisition adjustment.

7. A battery box ventilation function test method according to claim 1, characterized in that: The specific process of adjusting the ventilation speed of the battery box is as follows: After data acquisition and adjustment, a battery box ventilation function test is performed to obtain ventilation function test data of the battery box, wherein the ventilation function test data of the battery box includes hydrogen concentration, oxygen concentration, temperature average value, and humidity average value of the battery box; Comprehensively analyzing the ventilation function experimental data of the battery box to obtain a ventilation function evaluation value of the battery box, wherein the ventilation function evaluation value of the battery box represents the hydrogen concentration, oxygen concentration, average temperature, and average humidity of the battery box, which together quantify the ventilation function of the battery box; Matching the ventilation function evaluation value of the battery box with the ventilation speed adjustment values ​​corresponding to each ventilation function evaluation value interval stored in the ventilation function experiment database, and calculating the ventilation speed adjustment values ​​corresponding to the intervals in which the ventilation function evaluation value of the battery box falls, and recording them as the ventilation speed adjustment values ​​of the battery box; The ventilation speed adjustment value of the battery box is added to the current ventilation speed of the battery box to obtain the ventilation speed target execution value of the battery box, and the ventilation speed of the battery box is adjusted up to the ventilation speed target execution value of the battery box.

8. A battery box ventilation function test method according to claim 7, characterized in that: The data analysis and processing of the battery box ventilation function experiment is carried out, and the specific analysis process is as follows: Data analysis and processing are performed on the battery box ventilation function experiment to obtain the current battery box ventilation speed, and the battery box ventilation speed is compared with the set ventilation speed threshold. If the battery box ventilation speed is higher than the set ventilation speed threshold, the difference between the battery box ventilation speed and the set ventilation speed threshold is recorded as the battery box ventilation control value; otherwise, the battery box continues to be ventilated at the current ventilation speed.

9. A battery box ventilation function test method according to claim 8, characterized in that: The specific process of obtaining the battery box ventilation function test results is as follows: The battery box ventilation function test results include ventilation abnormality and ventilation failure; The ventilation control value of the battery box is compared with the set ventilation control threshold. If the ventilation control value of the battery box is higher than the set ventilation control threshold, the battery box ventilation function test result is marked as a ventilation failure; otherwise, the battery box ventilation function test result is marked as a ventilation abnormality.

10. A battery box ventilation function test method according to claim 9, characterized in that: The battery box ventilation constraint parameter configuration is performed based on the battery box ventilation function test results. The specific process is as follows: Extract the battery box ventilation function test results. If the battery box ventilation function test results show ventilation abnormality, configure the battery box ventilation constraint parameters. If the battery box ventilation function test results show ventilation failure, send the failure information to the management terminal for prompting.

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