An automotive connector durability test system

Abstract

An automotive connector durability test system, specifically related to the field of automotive connector durability testing, includes a data acquisition module, a parameter calculation module, and a test execution module. The data acquisition module is used to collect real-time data including the current temperature value W, the current humidity value S, the current altitude value HB, the current plugging and unplugging interval time H0, and the current current value D0 in real time. From the data acquisition module, the historical data stored therein including the upper temperature limit value W max and the lower temperature limit value W min are extracted. The parameter calculation module is used to calculate and output the basic current adjustment coefficient K, the adjusted plugging and unplugging interval time T, and the adjusted current value D in sequence. The test execution module is used to execute the parameter adjustment of the adjusted plugging and unplugging interval time T and the adjusted current value D. By comprehensively considering the influence of multiple factors and realizing adaptive real-time adjustment, the present invention improves the accuracy and reliability of the test results.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive connector durability testing, and specifically to an automotive connector durability testing system. Background Art

[0002] At present, with the booming development of the automotive industry, as a key component of the electrical system, the durability of automotive connectors plays a decisive role in the safety and reliability of automobiles. To ensure that automotive connectors can operate stably under complex and variable actual working conditions, it is necessary to conduct comprehensive and accurate durability tests on them.

[0003] However, in actual situations, an increase in temperature will exacerbate the corrosive effect of humidity on the connector, and altitude changes will also affect the heat dissipation and insulation performance of the connector. However, existing testing systems cannot comprehensively consider these factors, resulting in a large deviation between the test results and the actual usage situation. Moreover, when the temperature of the connector rises abnormally, the existing testing systems still maintain the original current and plugging / unplugging interval time, which may cause the connector to be damaged prematurely under excessive testing, or fail to accurately detect potential problems under insufficient testing. In addition, due to the lack of consideration of the comprehensive influence of multiple factors and the lack of a real-time adjustment mechanism, the test results of the existing technology are difficult to accurately reflect the durability of the connector in actual use, which leads to connector failures during the operation of the automobile, thereby affecting the safety and reliability of the automobile, increasing the maintenance cost and the safety risk of users.

[0004] Therefore, those skilled in the art have provided an automotive connector durability testing system to solve the problems raised in the above background art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an automotive connector durability testing system to achieve the effects of comprehensive consideration of multiple factors, adaptive real-time adjustment, and improvement of the accuracy and reliability of test results.

[0006] To solve the above problems, the present invention provides the following technical solutions:

[0007] An automotive connector durability testing system, including a data acquisition module, a parameter calculation module, and a test execution module, characterized in that: the parameter calculation module includes a unit for providing a basis for basic adjustment, a plugging / unplugging time adjustment unit, and a current adjustment unit;

[0008] The specific implementation steps are as follows:

[0009] Step 1: Use the data acquisition module to collect real-time data including the current temperature value W, the current humidity value S, the current altitude value HB, the current plugging / unplugging interval time H0, and the current current value D0 in real time;

[0010] Step 2: Extract the historical data stored in the data acquisition module, including the upper temperature limit value W max and the lower temperature limit value W min .

[0011] Step 3: Based on the real-time data and historical data, use the parameter calculation module to calculate and output the basic current adjustment coefficient K, the adjusted plugging and unplugging interval time T, and the adjusted current value D in sequence;

[0012] Step 4: Use the test execution module to execute the parameter adjustment of the adjusted plugging and unplugging interval time T and the adjusted current value D.

[0013] Furthermore: The devices used in the data acquisition module include a temperature sensor, a humidity sensor, an altitude sensor, and a power supply device;

[0014] The devices used in the parameter calculation module include a programmable logic controller;

[0015] The devices used in the test execution module include a computing device.

[0016] Furthermore: The calculation formula of the unit providing the basic adjustment basis is as follows:

[0017]

[0018] Where:

[0019] K is the basic current adjustment coefficient;

[0020] W is the current temperature value;

[0021] W max is the upper temperature limit value, and W max is set according to the actual application field of the automotive connector. The fields include commercial, industrial, and military. The specific settings are as follows:

[0022] For commercial automotive connectors, the applicable temperature range is 0°C to 70°C, so set W max = 70;

[0023] For industrial automotive connectors, the applicable temperature range is -40°C to 85°C, so set W max = 85;

[0024] For military automotive connectors, the applicable temperature range is 55°C to 125°C, so set W max = 125;

[0025] S is the current humidity value;

[0026] HB is the current altitude value;

[0027] In the calculation, for every 1% increase in humidity, the result of the basic current adjustment coefficient K will increase by 0.01.

[0028] Furthermore: The calculation formula of the unit providing the basis for adjustment is as follows:

[0029]

[0030] Where:

[0031] K is the basic current adjustment coefficient;

[0032] W is the current temperature value;

[0033] W max is the upper limit value of temperature, and W max is set according to the actual application field of the automotive connector. The fields include commercial, industrial, and military. The specific settings are as follows:

[0034] For commercial automotive connectors with an application temperature range of 0°C to 70°C, set W max = 70;

[0035] For industrial automotive connectors with an application temperature range of -40°C to 85°C, set W max = 85;

[0036] For military automotive connectors with an application temperature range of 55°C to 125°C, set W max = 125;

[0037] S is the current humidity value;

[0038] HB is the current altitude value;

[0039] In the calculation, for every 1% increase in humidity, the result of the basic current adjustment coefficient K will increase by 0.01.

[0040] Furthermore: The calculation formula of the plugging and unplugging time adjustment unit is as follows:

[0041]

[0042] Where:

[0043] T is the adjusted plugging and unplugging interval time;

[0044] T0 is the current plugging and unplugging interval time;

[0045] The calculation reflects a preliminary adjustment of the current plugging and unplugging interval time T0 according to the basic current adjustment coefficient K;

[0046] In the calculation, for every 200% increase in humidity, the adjusted insertion / removal interval time T doubles.

[0047] Furthermore: when the current temperature value W ≤ the upper temperature limit value W max the basic current adjustment coefficient K will be automatically set to 1.

[0048] Furthermore: the calculation formula of the current adjustment unit is as follows:

[0049]

[0050] Where:

[0051] D is the adjusted current value;

[0052] D0 is the current current value;

[0053] The calculation reflects the preliminary adjustment of the current current value D0 according to the basic current adjustment coefficient K.

[0054] Furthermore: when the current temperature value W ≤ the upper temperature limit value W max and when it exceeds the lower temperature limit, the calculation formula of the unit providing the basis for basic adjustment is adjusted as follows:

[0055]

[0056] Where:

[0057] W min is the lower temperature limit value, and the specific setting of W min is as follows:

[0058] For commercial vehicle connectors, W min = 0;

[0059] For industrial vehicle connectors, W min = -40;

[0060] For military vehicle connectors, W min = 55.

[0061] The effects of the above solutions are as follows:

[0062] 1. By providing a unit for providing the basis for basic adjustment, the present invention comprehensively considers the influence of the current temperature value W, the current humidity value S, and the current altitude value HB on the basic current adjustment coefficient K, incorporates multiple physical factors into the calculation, can more realistically simulate the durability of automotive connectors under complex actual working conditions, and makes the test results more in line with the actual situation.

[0063] 2. The plugging and unplugging time adjustment unit and current adjustment unit of the present invention adjust the adjusted plugging and unplugging interval time T and adjusted current value D in real time according to the provided basic current adjustment coefficient K and the currently monitored current humidity value S, current plugging and unplugging interval time H0, and current current value D0 parameters, enabling the system to automatically calculate and adjust the test parameters according to the formula. In this way, during the test, the connector can be prevented from being damaged due to overheating, and at the same time, the durability of the connector under different working conditions can be detected more accurately.

[0064] 3. The three formulas of the present invention are interrelated to form a closed-loop adaptive adjustment system. The result of the unit providing the basic adjustment basis affects the plugging and unplugging time adjustment unit and current adjustment unit, and the result of the current adjustment unit in turn affects the heat generation situation of the connector, thereby cyclically affecting the calculation of the unit providing the basic adjustment basis. This real-time dynamic adjustment method can continuously optimize the test parameters according to the real-time state of the connector, making the test process closer to the actual use situation, thereby improving the accuracy and reliability of the test results. Description of the Drawings

[0065] Figure 1 is a schematic flow chart of the method for the automotive connector durability test system;

[0066] Figure 2 is a schematic overall structure diagram of the automotive connector durability test system. Detailed Embodiments

[0067] Next, the technical solutions in the embodiments of the present invention will be clearly and completely introduced in conjunction with the drawings in the embodiments of the present invention.

[0068] Embodiment 1. Please refer to Figure 1-2 , an automotive connector durability test system, including a data acquisition module, a parameter calculation module, and a test execution module, characterized in that: the parameter calculation module includes a unit providing a basic adjustment basis, a plugging and unplugging time adjustment unit, and a current adjustment unit;

[0069] The specific implementation steps are as follows:

[0070] Step 1: Use the data acquisition module to collect real-time data including the current temperature value W, current humidity value S, current altitude value HB, current plugging and unplugging interval time H0, and current current value D0 in real time;

[0071] Step 2: Extract the historical data stored in the data acquisition module, including the temperature upper limit value W max and the temperature lower limit value W min ;

[0072] Step 3: Based on real-time data and historical data, and using the parameter calculation module, calculate and output the basic current adjustment coefficient K, the adjusted plugging interval time T, and the adjusted current value D in sequence;

[0073] Step 4: Use the test execution module to execute the parameter adjustment of the adjusted plugging interval time T and the adjusted current value D;

[0074] The devices used by the data acquisition module include a temperature sensor, a humidity sensor, an altitude sensor, and a power supply device;

[0075] The devices used by the parameter calculation module include a programmable logic controller;

[0076] The devices used by the test execution module include a computing device.

[0077] In this embodiment, the temperature sensor is used to measure the temperature of the connector, the humidity sensor is used to measure the humidity of the test environment, the altitude sensor is used to obtain the altitude of the test location, the power supply device adjusts the output current according to the calculated adjusted current value D, and provides the electrical energy required for the test for the connector. The programmable logic controller controls the plugging interval time and the plugging and unplugging actions. The computer device is used to run parameter calculation software and data analysis software to achieve the overall control and data processing of the test system;

[0078] The provided basic adjustment basis unit, plugging time adjustment unit, and current adjustment unit of this embodiment are interrelated. Combining the data acquisition module, parameter calculation module, and test execution module, comprehensively considering multiple factors such as temperature, humidity, and altitude, realizes the adaptive real-time adjustment of test parameters, forms a closed-loop optimization system, makes the test more conform to the actual working conditions, and thus improves the accuracy and reliability of the test results.

[0079] Please refer to Figure 1-2 , the calculation formula of the basic adjustment basis unit is as follows:

[0080]

[0081] Where:

[0082] K is the basic current adjustment coefficient;

[0083] W is the current temperature value;

[0084] W max is the upper temperature limit value, W max is set according to the actual application field of the automotive connector. The fields include commercial, industrial, and military. The specific settings are as follows:

[0085] For commercial automotive connectors, the application temperature range is from 0°C to 70°C, then set W max = 70;

[0086] If the temperature range for industrial automotive connectors is from -40°C to 85°C, then set W max = 85;

[0087] If the temperature range for military automotive connectors is from 55°C to 125°C, then set W max = 125;

[0088] S is the current humidity value;

[0089] HB is the current altitude value;

[0090] In the calculation of, for every 1% increase in humidity, the result of the basic current adjustment coefficient K will increase by 0.01;

[0091] When the current temperature value W ≤ the temperature upper limit value W max the basic current adjustment coefficient K will be automatically set to 1.

[0092] In the basic adjustment basis unit provided in this embodiment, first The calculation part is used to measure the relative degree by which the current temperature value W of the connector exceeds the temperature upper limit value W max and divides the obtained temperature difference by the temperature upper limit value W to obtain a relative ratio value. If max the result of the calculation part is positive, it indicates that the temperature exceeds the normal range, and the larger the result of the calculation part, the more severe the exceeding degree. And the square root operation will make the growth rate of the result value of the calculation part slower, so that the result of the calculation part will not fluctuate violently due to small temperature changes;

[0093] In the calculation part converts the current humidity value S into a decimal form for multiplication with other terms. Since the current humidity value S is given as a percentage, dividing by 100 gives a decimal between 0 and 1, which is convenient to reflect the influence of humidity on the basic current adjustment coefficient K in the formula. And if the humidity is higher, the larger the value of the calculation part, the corresponding increase in the basic current adjustment coefficient K;

[0094] In the calculation part It is to scale the current altitude value HB so that its influence degree in the formula matches that of other factors. The current altitude value HB is usually a relatively large value, and dividing it by 10000 can scale it to a suitable range, avoiding excessive influence of the altitude factor in the coefficient calculation. Moreover, the higher the altitude, the smaller the value of the calculation part, and the basic current adjustment coefficient K will also decrease accordingly;

[0095] The unit providing the basis for basic adjustment comprehensively considers the influences of the current temperature value W, the current humidity value S, and the current altitude value HB on the durability test of automotive connectors. In the actual automotive usage scenario, the connector will be affected by the interaction of various environmental factors. Specifically, high temperature will accelerate the aging of the internal materials of the connector, high humidity will increase the corrosion risk, and high altitude will affect the heat dissipation and insulation performance. By integrating these factors into a formula to calculate the basic current adjustment coefficient K, it can more realistically simulate the working state of the connector under complex actual working conditions, making the subsequent test parameter adjustment more in line with the actual situation, thereby improving the accuracy and reliability of the test results;

[0096] It should be noted that the unit providing the basis for basic adjustment quantifies the situation of abnormal temperature rise through the calculation part. The square root operation can smooth the influence of abnormal temperature rise, thereby avoiding too rapid growth of the coefficient. However, when the temperature is within the normal range, that is, the current temperature value W ≤ the upper limit value of temperature W max , the basic current adjustment coefficient K is automatically set to 1, indicating that there is no need to adjust the test parameters due to abnormal temperature rise, thereby ensuring the stability of the test system under normal circumstances. In actual situations, when the current temperature value W ≤ the upper limit value of temperature W max , this indicates that under the current test conditions of the connector, its heat generation situation meets the expectations, and there is no phenomenon of abnormal temperature rise caused by factors such as excessive current, poor contact, and too high external environment. At this time, the working state of the connector is relatively stable, and there is no additional potential risk to its performance and durability due to temperature problems.

[0097] Please refer to Figure 1-2 , and the calculation formula of the plugging and unplugging time adjustment unit is as follows:

[0098]

[0099] Where:

[0100] T is the adjusted plugging and unplugging interval time;

[0101] T0 is the current plugging and unplugging interval time;

[0102] The calculation reflects a preliminary adjustment of the current plugging and unplugging interval time T0 according to the base current adjustment coefficient K;

[0103] In the calculation, for every 200% increase in humidity, the adjusted plugging and unplugging interval time T doubles.

[0104] In the plugging and unplugging time adjustment unit of this embodiment, first, The calculation part makes a preliminary adjustment of the current plugging and unplugging interval time T0 according to the base current adjustment coefficient K. Among them, the base current adjustment coefficient K reflects the comprehensive influence of temperature, humidity, and altitude on the test. Multiplying it by the current plugging and unplugging interval time T0 can obtain the current plugging and unplugging interval time T0 considering these factors. And In the of the calculation part, the current humidity value S is converted into a decimal form, and the influence weight of humidity on the plugging and unplugging interval time is reduced. Among them, dividing by 200 results in a smaller decimal than dividing by 100 in the unit that provides the basis for basic adjustment, so that the influence of humidity on the plugging and unplugging interval time is relatively small. Although humidity will also have a certain influence on the plugging and unplugging aspect, relatively speaking, the degree of this influence is not as direct and strong as that on current. The increase in the current humidity value S will cause a slight change in the friction during the plugging and unplugging process, but it will not quickly lead to a decline in the performance of the connector and safety problems like it affects current. Therefore, when calculating the plugging and unplugging interval time, in order to avoid over-adjusting the plugging and unplugging interval time, the current humidity value S is divided by 200 to reduce the influence weight of humidity on the result, making the adjustment of the plugging and unplugging interval time smoother and more reasonable, thereby reflecting the influence of humidity on the adjusted plugging and unplugging interval time. When the humidity increases, the plugging and unplugging interval time increases accordingly;

[0105] The plugging and unplugging time adjustment unit makes a preliminary adjustment of the current plugging and unplugging interval time T0 by using the base current adjustment coefficient K calculated by the unit that provides the basis for basic adjustment. This means that the adjustment of the plugging and unplugging interval time is based on the comprehensive influence of multiple factors such as temperature, humidity, and altitude, making the plugging and unplugging interval time better reflect the actual usage situation of the connector in the current environment. Specifically, when the base current adjustment coefficient K changes due to an abnormal increase in temperature and an increase in humidity, the plugging and unplugging interval time will change accordingly, thereby avoiding damage to the connector caused by excessive and frequent plugging and unplugging in a harsh environment.

[0106] Please refer to Figure 1-2 , the calculation formula of the current adjustment unit is as follows:

[0107]

[0108] Where:

[0109] D is the adjusted current value;

[0110] D0 is the current value at present;

[0111] The calculation of reflects the preliminary adjustment of the current value D0 according to the basic current adjustment coefficient K.

[0112] In the current adjustment unit of this embodiment, first, The calculation part makes a preliminary adjustment to the current value D0 according to the basic current adjustment coefficient K, where the basic current adjustment coefficient K reflects the comprehensive influence of temperature, humidity and altitude on the test. Multiplying it by the current value D0 can obtain the preliminary current after considering these factors, thereby providing a basis for subsequent consideration of the influence of the change in the plugging and unplugging interval time on the current;

[0113] In the calculation part is used to calculate the ratio of the adjusted plugging and unplugging interval time T to the current plugging and unplugging interval time T0 to reflect the change of the plugging and unplugging interval time. If the ratio of the calculation part is greater than 1, it means that the plugging and unplugging interval time increases. If the ratio of the calculation part is less than 1, it means that the plugging and unplugging interval time decreases. The calculation part serves as the basis for subsequent square root operation and is used to calculate the influence of the change in the plugging and unplugging interval time on the current. And the square root operation of the calculation part will make the change range of the value relatively small;

[0114] The current adjustment unit combines the basic current adjustment coefficient K of the unit providing the basic adjustment basis and the adjusted plugging and unplugging interval time T of the plugging and unplugging time adjustment unit to adjust the current plugging and unplugging interval time T0. This enables the final adjusted current value D to comprehensively consider the influences of multiple factors such as temperature, humidity, altitude and the plugging and unplugging interval time. In addition, in the current adjustment unit the calculation part smooths the change ratio of the plugging and unplugging interval time, and the square root operation ensures that the current adjustment will not fluctuate violently due to the tiny change in the plugging and unplugging interval time, thereby ensuring the stability of the current during the test, avoiding additional damage to the connector caused by current mutation, and at the same time being able to more accurately simulate the current change situation of the connector in actual use;

[0115] During the actual testing process, if the environment is good with normal temperature and humidity and low altitude, the external adverse effects on the connector itself are relatively small. Appropriately increasing the calculated adjusted current value D can simulate the working state of the connector under some extreme and high-load conditions. By increasing the test current, the durability and stability of the connector under high-current conditions can be more comprehensively detected, potential problems such as overheating and poor contact can be discovered. Moreover, a higher current will cause the connector to generate more heat, accelerating the aging process of internal materials. Conducting this accelerated aging test under good environmental conditions can evaluate the long-term performance of the connector in a relatively short time, shorten the test cycle, and improve the test efficiency. In addition, when the temperature and humidity are normal and the altitude is low, the performance of the connector itself is relatively stable. Extending the calculated adjusted plugging and unplugging interval time T can reduce unnecessary wear and avoid test errors caused by excessive plugging and unplugging, and more accurately evaluate the durability of the connector. If the environment is harsh with high temperature, high humidity and high altitude, the performance of the connector will be greatly affected. High temperature will cause the material to expand and the aging to accelerate, high humidity will also lead to corrosion and a decrease in insulation performance, and high altitude will affect heat dissipation and insulation. At this time, reducing the calculated adjusted current value D can reduce the heat generation of the connector, reduce the risk of damage to the connector caused by the combined action of environmental factors and high current, protect the connector from being overly damaged during the test, and ensure the smooth progress of the test. In addition, by shortening the calculated adjusted plugging and unplugging interval time T, the rigor of the test can be improved, ensuring that the connector can still meet the durability requirements under harsh environmental conditions;

[0116] The adjusted current value D calculated by the current adjustment unit will affect the heat generation situation of the connector, and then affect the current temperature value W of the connector detected next time, thus cyclically affecting the calculation of the unit providing the basis for basic adjustment. This cyclic influence forms an adaptive closed-loop system, enabling the test system to dynamically adjust the test parameters according to the real-time state of the connector. When the increase in the adjusted current value D causes the temperature of the connector to rise, the basic current adjustment coefficient K calculated by the unit providing the basis for basic adjustment will change accordingly, and then affect the calculation results of the plugging and unplugging time adjustment unit and the current adjustment unit, so that the test parameters are adjusted again to ensure that the test process always matches the actual state of the connector. Through this cyclic influence, the test system can respond in a timely manner to changes in the connector state, continuously optimize the test parameters, and make the test process closer to the actual use situation. This helps to more accurately detect the durability of the connector under different working conditions, discover potential problems in advance, and thus improve the accuracy and reliability of the test results.

[0117] Example 2, please refer to Figure 1-2 , when the current temperature value W ≤ the upper temperature limit value W max and exceeds the lower temperature limit, the calculation formula of the unit providing the basis for basic adjustment is adjusted as follows:

[0118]

[0119] Wherein:

[0120] W min is the lower limit value of temperature, and W min is specifically set as follows:

[0121] For commercial vehicle connectors, W min = 0;

[0122] For industrial vehicle connectors, W min = -40;

[0123] For military vehicle connectors, W min = 55.

[0124] In this embodiment, generally speaking, the lower the temperature, the smaller the value of the result obtained by the calculation part, in order to reflect the negative impact of low temperature on the performance of the connector. Thus, the consideration test for the case where the temperature is lower than the lower limit is realized, enabling the test system to simulate the working state of the automotive connector under a wider range of actual working conditions, and further improving the accuracy and reliability of the test results. In a low-temperature environment, according to and the original calculation formulas of the plugging and unplugging time adjustment unit and the current adjustment unit, the test parameters are calculated and adjusted, including reducing the current and adjusting the plugging and unplugging interval time, which can reduce the damage caused by low temperature to the connector and protect the connector from being overly damaged during the test.

[0125] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims.

Claims

1. An automotive connector durability test system, comprising a data acquisition module, a parameter calculation module, and a test execution module, characterized in that: The parameter calculation module includes a unit for providing a basis for basic adjustment, a plugging and unplugging time adjustment unit, and a current adjustment unit; The specific implementation steps are as follows: Step 1: Use the data acquisition module to collect real-time data including the current temperature value W, the current humidity value S, the current altitude value HB, the current plugging and unplugging interval time H0, and the current current value D0 in real time; Step 2: Extract the stored data including the upper temperature limit value W from the data acquisition module. max And the lower limit of temperature W min Historical data; Step 3: Based on the real-time data and historical data, use the parameter calculation module to calculate and output the basic current adjustment coefficient K, the adjusted plugging and unplugging interval time T, and the adjusted current value D in sequence; Step 4: Use the test execution module to execute the parameter adjustment of the adjusted plugging and unplugging interval time T and the adjusted current value D; The calculation formula of the unit for providing a basis for basic adjustment is as follows: ； Where: K is the basic current adjustment coefficient; W is the current temperature value; W max is the upper temperature limit value, W max It is set according to the actual application fields of automotive connectors, and the fields include commercial, industrial, and military. The specific settings are as follows: If the temperature range for the commercial vehicle connector application is from 0°C to 70°C, then set W max = 70; If the temperature range applicable to industrial automotive connectors is from -40°C to 85°C, then set W max = 85; The temperature range of the military vehicle connector application is from 55°C to 125°C, so set W max = 125; S is the current humidity value; HB is the current altitude value; In the calculation, for every 1% increase in humidity, the result of the basic current adjustment coefficient K will increase by 0.

01.

2. The automotive connector durability test system according to claim 1, wherein: The devices used by the data acquisition module include a temperature sensor, a humidity sensor, an altitude sensor, and a power supply device; The devices used by the parameter calculation module include a programmable logic controller; The devices used by the test execution module include a computing device.

3. The durability test system for an automotive connector according to claim 2, characterized in that: The calculation formula of the plugging and unplugging time adjustment unit is as follows: ； Where: T is the adjusted plugging and unplugging interval time; T0 is the current plugging and unplugging interval time; The calculation reflects a preliminary adjustment of the current plugging and unplugging interval time T0 according to the base current adjustment coefficient K; In the calculation, for every 200% increase in humidity, the adjusted plugging and unplugging interval time T doubles.

4. The durability test system for an automotive connector according to claim 3, wherein: When the current temperature value W ≤ the upper temperature limit value W max the basic current adjustment coefficient K will be automatically set to 1.

5. The durability test system for an automotive connector according to claim 4, wherein: The calculation formula of the current adjustment unit is as follows: ； Where: D is the adjusted current value; D0 is the current current value; The calculation reflects a preliminary adjustment of the current value D0 based on the base current adjustment factor K.

6. The durability test system for an automotive connector according to claim 4, wherein: The current temperature value W ≤ the upper temperature limit value W max And when the lower temperature limit is exceeded, the calculation formula of the unit providing the basis for basic adjustment is adjusted as follows: ； Where: W min is the lower limit value of the temperature, and W min is specifically set as follows: Commercial vehicle connector setting W min = 0; Industrial automotive connector setting W min =-40; Military vehicle connector setting W min = 55.

Images