A method, device, system, medium and equipment for testing automobile charging surge

Abstract

The present application discloses a method, device, system, medium and equipment for testing automobile charging surge. The method sets the test parameters of the charging surge test based on the charging parameters of the tested new energy automobile; generates a surge pulse signal to be superimposed on the alternating current of the power grid; collects the output current of the surge generating device; if the output current is greater than the upper limit value or less than the lower limit value, an alarm signal is issued; the output parameters of the surge generating device are collected; and the test results are generated. That is, during the surge test, the upper limit value and the lower limit value of the charging current are output, and the output current superimposed with the surge pulse signal is output. When the output current exceeds the set range, an alarm signal is issued to remind the tester, and the output parameters are collected to generate the test results, thereby reducing the degree of manual participation in the test process, and the output parameters of the surge generating device can be monitored throughout the whole process to record the whole test process, and provide detailed data support for the subsequent generation of test reports and analysis of the charging characteristics of new energy vehicles.

Description

Technical Field

[0001] The present application relates to the technical field of new energy vehicle charging test, and specifically to a vehicle charging surge test method, device, system, medium and equipment. Background Art

[0002] Electric vehicles include pure electric vehicles (EV) and plug-in hybrid electric vehicles (PHEV). Electric vehicles are vehicles that use onboard power as their power source and use electric motors to drive their wheels. For example, EVs only use onboard batteries to provide energy and use electric motors to provide power. When the power is sufficient, PHEVs use electric motors to drive the vehicle. When the power is insufficient, the engine will participate in the driving or power generation process. Both EVs and PHEVs need to charge their onboard batteries when the power is insufficient. During the charging process, the grid switching switch or surge (impact) pulses generated by lightning induction may affect the charging system of the electric vehicle at any time, which may cause charging to stop at the least or damage the charging components of the vehicle, affecting the normal use of the vehicle.

[0003] Therefore, there are relevant standards for the AC charging process of electric vehicles, which require specific assessment indicators for the whole vehicle to withstand surge interference. However, the standard requires a relatively long surge test time, ranging from one or two hours to 20 to 30 hours. At present, the test process is mostly monitored by the tester's eyes, which obviously requires a lot of manpower costs, and it is difficult to ensure that the tester is always focused on the entire test process, resulting in the difficulty in ensuring the accuracy and precision of the test. Therefore, a method that can replace manual monitoring of the electric vehicle surge test process is needed. Summary of the invention

[0004] In order to solve the above technical problems, the present application is proposed. The embodiments of the present application provide a method, device, system, medium and equipment for testing a vehicle charging surge.

[0005] According to one aspect of the present application, a vehicle charging surge test method is provided, which is applied to a vehicle charging surge test system. The vehicle charging surge test system includes a surge generating device, a detection device, a control device, a parameter monitoring device and an alarm device. One end of the surge generating device is connected to a power supply and the other end is connected to a new energy vehicle under test. The surge generating device is used to generate a surge pulse signal and superimpose it on the alternating current of the power grid and then transmit it to the new energy vehicle under test. The detection device is arranged between the surge generating device and the new energy vehicle under test. The detection device is used to detect the current value transmitted by the surge generating device to the new energy vehicle under test. The control device is connected to the surge generating device and the detection device. The control device is used to control the surge generating device to generate a surge pulse signal and record the current value detected by the detection device. The parameter monitoring device is connected to the surge generating device. The parameter monitoring device The device is used to monitor the output parameters of the surge generating device, the alarm device is connected to the detection device, and the alarm device is used to send an alarm signal; wherein the automobile charging surge test method includes: setting the test parameters of the charging surge test based on the charging parameters of the new energy vehicle under test; wherein the test parameters include the upper limit and lower limit of the charging current of the new energy vehicle under test; controlling the surge generating device to generate a surge pulse signal to be superimposed on the alternating current of the power grid to obtain the output current of the surge generating device; using the detection device to collect the output current of the surge generating device; if the output current is greater than the upper limit or less than the lower limit, controlling the alarm device to send an alarm signal; using the parameter monitoring device to collect the output parameters of the surge generating device; sending the output current and output parameters of the surge generating device to the control device, and the control device generates a test result.

[0006] In one embodiment, the surge generating device includes a plurality of test point indicator lights, and the parameter monitoring device includes optical signal collectors respectively arranged at the plurality of test point indicator lights; wherein, the use of the parameter monitoring device to collect the output parameters of the surge generating device includes: using the plurality of optical signal collectors to collect the status information of the plurality of test point indicator lights; and determining the test point information of the surge generating device based on the position information of the test point indicator lights whose status information is in the on state.

[0007] In one embodiment, the detection device includes a current probe and a magnetic ring, the current probe is connected to the main structure of the detection device through a sampling line, the current probe is sleeved on the charging line between the surge generating device and the new energy vehicle under test, and the magnetic ring is sleeved on the sampling line; wherein, using the detection device to collect the output current of the surge generating device includes: using the current probe to collect the output current of the surge generating device.

[0008] In one embodiment, after the detection device is used to collect the output current of the surge generating device, the automobile charging surge test method further includes: if the output current is less than or equal to the upper limit value and greater than or equal to the lower limit value, then calculating the current difference between the current output current and the output current at the last cycle moment; wherein the last cycle moment is a pulse interval time away from the current moment; if the current difference is greater than a preset current threshold, then adjusting the current output current according to the output current at the last cycle moment.

[0009] In one embodiment, the current output current is adjusted according to the output current at the previous cycle moment, including: if the current moment is within the surge pulse occurrence time period, the current output current = the output current at the previous cycle moment + half of the current difference; if the current moment is within the surge pulse interval time period, the current output current = the output current at the previous cycle moment, and the number of output current adjustments is increased by one; if the number of output current adjustments is greater than a preset number threshold, the alarm device is controlled to send an alarm signal.

[0010] In one embodiment, before setting the test parameters of the charging surge test based on the charging parameters of the new energy vehicle under test, the vehicle charging surge test method also includes: controlling the surge generating device to output a calibrated current; wherein the calibrated current is a standard sinusoidal current; using the detection device to collect the output current of the surge generating device to obtain a measured current; based on the calibrated current and the measured current, adjusting the collection parameters of the detection device; wherein the collection parameters include a delay time and a current correction coefficient of the detection device, wherein the delay time represents the delay time of the current collected by the detection device relative to the current output by the surge generating device, and the current correction coefficient represents the ratio of the current amplitude collected by the detection device to the current amplitude output by the surge generating device.

[0011] According to another aspect of the present application, a vehicle charging surge test device is provided, which is arranged in a vehicle charging surge test system. The vehicle charging surge test system includes a surge generating device, a detection device, a control device, a parameter monitoring device and an alarm device. One end of the surge generating device is connected to a power supply and the other end is connected to a new energy vehicle under test. The surge generating device is used to generate a surge pulse signal and superimpose it on the alternating current of the power grid and then transmit it to the new energy vehicle under test. The detection device is arranged between the surge generating device and the new energy vehicle under test. The detection device is used to detect the current value transmitted by the surge generating device to the new energy vehicle under test. The control device is connected to the surge generating device and the detection device. The control device is used to control the surge generating device to generate a surge pulse signal and record the current value detected by the detection device. The parameter monitoring device is connected to the surge generating device. The parameter monitoring device is used to monitor the output parameters of the surge generating device. The alarm device is connected to the detection device. The device comprises: a test parameter setting module, which is used to set the test parameters of the charging surge test based on the charging parameters of the new energy vehicle under test; wherein the test parameters include the upper limit and lower limit of the charging current of the new energy vehicle under test; an output current generating module, which is used to control the surge generating device to generate a surge pulse signal to be superimposed on the alternating current of the power grid to obtain the output current of the surge generating device; an output current collecting module, which is used to use the detection device to collect the output current of the surge generating device; an alarm signal issuing module, which is used to control the alarm device to issue an alarm signal if the output current is greater than the upper limit or less than the lower limit; an output parameter collecting module, which is used to use the parameter monitoring device to collect the output parameters of the surge generating device; a test result generating module, which is used to send the output current and output parameters of the surge generating device to the control device, and the control device generates the test result.

[0012] According to another aspect of the present application, a car charging surge test system is provided, comprising: a surge generating device, a detection device, a control device, a parameter monitoring device, an alarm device and the above-mentioned car charging surge test device; wherein, one end of the surge generating device is connected to a power supply and the other end is connected to a new energy vehicle under test, the surge generating device is used to generate a surge pulse signal and superimpose it on the alternating current of the power grid and then transmit it to the new energy vehicle under test, the detection device is arranged between the surge generating device and the new energy vehicle under test, the detection device is used to detect the current value transmitted by the surge generating device to the new energy vehicle under test, the control device is connected to the surge generating device and the detection device, the control device is used to control the surge generating device to generate a surge pulse signal and record the current value detected by the detection device, the parameter monitoring device is connected to the surge generating device, the parameter monitoring device is used to monitor the output parameters of the surge generating device, the alarm device is connected to the detection device, and the alarm device is used to send an alarm signal.

[0013] According to another aspect of the present application, a computer-readable storage medium is provided, wherein the storage medium stores a computer program, and the computer program is used to execute any of the above-mentioned vehicle charging surge testing methods.

[0014] According to another aspect of the present application, an electronic device is provided, comprising: a processor; a memory for storing instructions executable by the processor; the processor is used to execute any of the above-mentioned automobile charging surge testing methods.

[0015] The present application provides a method, device, system, medium and equipment for testing a charging surge of an automobile. The method sets the test parameters of the charging surge test based on the charging parameters of the new energy automobile under test. The test parameters include the upper limit and lower limit of the charging current of the new energy automobile under test. The surge generating device is controlled to generate a surge pulse signal to be superimposed on the alternating current of the power grid to obtain the output current of the surge generating device. The detection device is used to collect the output current of the surge generating device. If the output current is greater than the upper limit or less than the lower limit, the alarm device is controlled to send an alarm signal. The parameter monitoring device is used to collect the output parameters of the surge generating device. The output current and output parameters of the surge generating device are sent to the A control device is provided, and the test result is generated by the control device; that is, when performing a surge test on a new energy vehicle, the upper limit and lower limit of the charging current of the new energy vehicle are set, and the surge generating device is used to output the output current superimposed with the surge pulse signal. When the output current exceeds the set upper limit or lower limit range, an alarm signal is issued to remind the tester, and the output parameters are collected by the parameter monitoring device and sent to the control device to generate the test result, thereby greatly reducing the degree of manual participation in the test process, and the output parameters of the surge generating device can be monitored throughout the whole process to record the whole test process, providing detailed data support for the subsequent generation of test reports and analysis of the charging characteristics of new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0017] Figure 1 This is a system diagram to which this application applies.

[0018] Figure 2 It is a flow chart of a vehicle charging surge testing method provided by an exemplary embodiment of the present application.

[0019] Figure 3 It is a structural schematic diagram of a vehicle charging surge test device provided by an exemplary embodiment of the present application.

[0020] Figure 4 It is a structural diagram of an electronic device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0021] Below, the exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the exemplary embodiments described here.

[0022] Figure 1 This is the system diagram to which this application applies. Figure 1 As shown, the automobile charging surge test system provided by the present application includes: a surge generating device 1, a detection device 2, a control device 3, a parameter monitoring device 4, an alarm device 5 and an automobile charging surge test device; wherein, the automobile charging surge test device can be a separately arranged test device, or it can be a test chip integrated in the control device 3, one end of the surge generating device 1 is connected to the power supply, and the other end is connected to the new energy vehicle under test, the surge generating device 1 is used to generate a surge pulse signal and superimpose it on the alternating current of the power grid and then transmit it to the new energy vehicle under test, the detection device 2 is arranged between the surge generating device 1 and the new energy vehicle under test, the detection device 2 is used to detect the current value transmitted by the surge generating device 1 to the new energy vehicle under test, the control device 3 is connected to the surge generating device 1 and the detection device 2, the control device 3 is used to control the surge generating device 1 to generate a surge pulse signal and record the current value detected by the detection device 2, the parameter monitoring device 4 is connected to the surge generating device 1, the parameter monitoring device 4 is used to monitor the output parameters of the surge generating device 1, the alarm device 5 is connected to the detection device 2, and the alarm device 5 is used to send an alarm signal.

[0023] The present application utilizes a surge generating device 1 to generate a surge pulse signal and superimposes it on the alternating current of the power grid and then transmits it to the new energy vehicle under test, so as to simulate the surge charging current generated by lightning induction, etc. to test the new energy vehicle under test, and utilizes a detection device 2 to detect the current value transmitted by the surge generating device 1 to the new energy vehicle under test and transmits the detected current value to a control device 3 for recording, and a parameter monitoring device 4 synchronously monitors the output parameters of the surge generating device 1. If it is detected that the current value transmitted by the surge generating device 1 to the new energy vehicle under test exceeds a preset current range, indicating that the new energy vehicle under test has a charging abnormality, the alarm device 5 sends out an alarm signal, which can not only remind the tester of the abnormal situation, but also record the entire process data during the test to provide an accurate data basis for subsequent analysis and the formation of a test report.

[0024] Figure 2 FIG. 1 is a flow chart of a vehicle charging surge test method provided by an exemplary embodiment of the present application. The vehicle charging surge test method is applied to the above-mentioned vehicle charging surge test system, such as Figure 2 As shown, the vehicle charging surge test method includes the following steps:

[0025] Step 210: Based on the charging parameters of the new energy vehicle under test, the test parameters of the charging surge test are set.

[0026] Among them, the test parameters include the upper limit and lower limit of the charging current of the tested new energy vehicle. This application sets the test parameters of the charging surge test according to the charging parameters of the tested new energy vehicle, such as the size of the charging current and voltage of the tested new energy vehicle, and determines the upper limit and lower limit of the charging current of the tested new energy vehicle based on the charging current, that is, the upper limit and lower limit of the charging current that the tested new energy vehicle cannot exceed during the charging process.

[0027] Step 220: Control the surge generating device to generate a surge pulse signal to be superimposed on the alternating current of the power grid to obtain an output current of the surge generating device.

[0028] A surge pulse signal is generated by a surge generating device, and the surge pulse signal is superimposed on the alternating current of the power grid to simulate the surge pulse in the actual charging process, and the output current is obtained to test the ability of the tested new energy vehicle to withstand surge pulses.

[0029] Step 230: Use a detection device to collect the output current of the surge generating device.

[0030] When the surge generating device outputs current to the tested new energy vehicle for charging test, the detection device is used to collect the output current of the surge generating device to obtain the real-time output current of the surge generating device, thereby judging the charging status of the tested new energy vehicle.

[0031] Step 240: If the output current is greater than the upper limit or less than the lower limit, the alarm device is controlled to send out an alarm signal.

[0032] If the output current of the surge generating device collected by the detection device is greater than the upper limit value or less than the lower limit value, that is, it exceeds the set current range, it means that the charging status of the new energy vehicle under test is abnormal at this time, then the control alarm device will send an alarm signal to remind the tester to avoid other safety accidents caused by abnormal charging.

[0033] Preferably, the present application can also record the cumulative time when the output current is greater than the upper limit or less than the lower limit, that is, count the cumulative time when the output current is greater than the upper limit or less than the lower limit. If the cumulative time is less than the preset time threshold, it means that the output current exceeds the normal range and it is only a short-term overcurrent phenomenon. At this time, the test can continue; if the cumulative time is greater than or equal to the preset time threshold, it means that the output current (the charging current of the new energy vehicle under test) exceeds the normal range for a period of time. At this time, the test is stopped and an alarm signal is issued to avoid safety accidents such as fire caused by overcurrent charging.

[0034] Step 250: Use a parameter monitoring device to collect output parameters of the surge generating device.

[0035] During the test process, the present application also utilizes a parameter monitoring device to collect output parameters of the surge generating device, that is, other parameters except the output current, such as test points, etc.

[0036] Step 260: Send the output current and output parameters of the surge generating device to the control device, and the control device generates a test result.

[0037] After acquiring the output current and output parameters of the surge generating device, the present application sends the output current and output parameters of the surge generating device to the control device for storage in the control device, and the control device generates a test result, such as a test report.

[0038] The present application provides a method for testing a charging surge of an automobile. The method sets test parameters of a charging surge test based on the charging parameters of a new energy automobile under test. The test parameters include an upper limit and a lower limit of the charging current of the new energy automobile under test. A surge generator is controlled to generate a surge pulse signal to be superimposed on the alternating current of a power grid to obtain an output current of the surge generator. A detection device is used to collect the output current of the surge generator. If the output current is greater than the upper limit or less than the lower limit, an alarm device is controlled to send an alarm signal. A parameter monitoring device is used to collect the output parameters of the surge generator. The output current and output parameters of the surge generator are sent to a control device, and The test result is generated by the control device; that is, when the new energy vehicle is subjected to a surge test, the upper and lower limits of the charging current of the new energy vehicle are set, and the surge generating device is used to output the output current superimposed with the surge pulse signal. When the output current exceeds the set upper or lower limit range, an alarm signal is issued to remind the tester, and the output parameters are collected by the parameter monitoring device and sent to the control device to generate the test result, thereby greatly reducing the degree of manual participation in the test process, and the output parameters of the surge generating device can be monitored throughout the whole process to record the whole test process, providing detailed data support for the subsequent generation of test reports and analysis of the charging characteristics of new energy vehicles.

[0039] In one embodiment, the surge generating device includes a plurality of test point indicator lights, and the parameter monitoring device includes optical signal collectors respectively arranged at the plurality of test point indicator lights; wherein the specific implementation method of the above step 250 may be: using a plurality of optical signal collectors to collect status information of a plurality of test point indicator lights; determining the test point information of the surge generating device based on the position information of the test point indicator lights whose status information is in the on state.

[0040] The present application sets up multiple optical signal collectors at the positions of the test point indicator lights of the surge generating device. During the surge test, the status information of the test point indicator lights at the corresponding positions is obtained through the optical signal collectors to determine which test point indicator lights are on during the test (the test point indicator lights corresponding to the test points will light up), thereby determining the test points of the surge generating device and recording the test point information in the test report.

[0041] In one embodiment, the detection device includes a current probe and a magnetic ring. The current probe is connected to the main structure of the detection device through a sampling line. The current probe is sleeved on the charging line between the surge generating device and the new energy vehicle under test, and the magnetic ring is sleeved on the sampling line. Among them, the specific implementation method of the above step 230 may include: using the current probe to collect the output current of the surge generating device.

[0042] The present application uses a current probe to detect the output current of a surge generating device in real time, and the current probe does not need to be electrically connected to the surge generating device, thereby not affecting the charging of the new energy vehicle being tested; at the same time, the present application uses a magnetic ring to reduce the interference of external interference signals on the current data collected by the current probe, thereby improving the collection accuracy of the detection device.

[0043] In one embodiment, after step 230, the above-mentioned automobile charging surge test method may further include: if the output current is less than or equal to the upper limit value and greater than or equal to the lower limit value, then calculating the current difference between the current output current and the output current at the last cycle moment; wherein the last cycle moment is a pulse interval time away from the current moment; if the current difference is greater than a preset current threshold, then adjusting the current output current according to the output current at the last cycle moment.

[0044] If the output current of the surge generating device collected by the detection device is less than or equal to the upper limit value and greater than or equal to the lower limit value, it means that the output current of the surge generating device (i.e., the charging current of the new energy vehicle under test) is within the normal range. At this time, the current difference between the current output current and the output current at the last cycle can be further calculated. If the current difference is greater than the current threshold, it means that the current difference between the current output current and the output current at the last cycle is large. Since the current output current and the output current at the last cycle are charging processes in the same or similar states, if the difference between the two is large at this time, it means that the charging current at the current moment may be inaccurately collected. At this time, the current output current is adjusted according to the output current at the last cycle to reduce the risk of inaccurate test results due to inaccurate detection results.

[0045] In one embodiment, the specific implementation method of adjusting the current output current according to the output current at the previous cycle moment can be: if the current moment is within the surge pulse occurrence time period, the current output current = the output current at the previous cycle moment + half of the current difference; if the current moment is within the surge pulse interval time period, the current output current = the output current at the previous cycle moment, and the number of output current adjustments is increased by one; if the number of output current adjustments is greater than the preset number threshold, the alarm device is controlled to send an alarm signal.

[0046] Specifically, if the current moment is within the surge pulse occurrence time period, it means that the charging current at the current moment contains a surge signal, and there may be a short overcurrent situation at this time. In order to minimize the interference of instantaneous overcurrent, the present application replaces the current output current with the output current of the previous cycle + half of the current difference; if the current moment is within the surge pulse interval time period, it means that the surge generating device has not generated a surge signal at this time, and the charging current at this time should be the normal current of the power grid. The current output current collection value may be abnormal. At this time, it is replaced by the output current of the previous cycle, and the number of output current adjustments is increased by one, that is, the number of output current adjustments is accumulated. When the number of output current adjustments is greater than the preset number threshold, it means that the output detection device is abnormal. At this time, the control alarm device sends an alarm signal to remind the tester to repair in time.

[0047] In one embodiment, before step 210, the above-mentioned automobile charging surge test method may further include: controlling the surge generating device to output a calibrated current; wherein the calibrated current is a standard sinusoidal current; using a detection device to collect the output current of the surge generating device to obtain a measured current; based on the calibrated current and the measured current, adjusting the collection parameters of the detection device; wherein the collection parameters include a delay time of the detection device and a current correction coefficient, wherein the delay time indicates the delay time of the current collected by the detection device relative to the current output by the surge generating device, and the current correction coefficient indicates the ratio of the current amplitude collected by the detection device to the current amplitude output by the surge generating device.

[0048] Before the test begins, the present application can also calibrate the test system. Specifically, the surge generating device is controlled to output a calibrated current, and the output current of the surge generating device is collected by a detection device to obtain a measured current. The calibrated current and the measured current are compared to adjust the collection parameters of the detection device. For example, if the measured current collected by the collection device is delayed relative to the calibrated current and the peak value is changed, the collection parameters of the detection device can be adjusted at this time so that the measured current and the calibrated current obtained are consistent, thereby providing more accurate collection parameters for subsequent current detection and ensuring the accuracy of subsequent collection.

[0049] Preferably, the present application can dynamically adjust the period of the surge pulse signal of the surge generating device during the test process; specifically, at the beginning of the test, the first period can be used to generate a surge pulse signal, and if the charging current of the new energy vehicle under test is normal after multiple testing periods, the second period can be used to generate a surge pulse signal, wherein the second period is smaller than the first period, thereby improving the test efficiency; if the charging current of the new energy vehicle under test is abnormal during the test of using the second period to generate a surge pulse signal, the period of the surge pulse signal of the surge generating device is adjusted to a third period, wherein the third period is between the first period and the second period.

[0050] Figure 3 1 is a schematic diagram of the structure of a vehicle charging surge test device provided by an exemplary embodiment of the present application. The vehicle charging surge test device is arranged in a vehicle charging surge test system, such as Figure 3 As shown, the automobile charging surge test device 30 includes: a test parameter setting module 31, which is used to set the test parameters of the charging surge test based on the charging parameters of the new energy vehicle under test; wherein the test parameters include the upper limit and lower limit of the charging current of the new energy vehicle under test; an output current generating module 32, which is used to control the surge generating device to generate a surge pulse signal to be superimposed on the alternating current of the power grid to obtain the output current of the surge generating device; an output current acquisition module 33, which is used to use a detection device to acquire the output current of the surge generating device; an alarm signal issuing module 34, which is used to control the alarm device to issue an alarm signal if the output current is greater than the upper limit or less than the lower limit; an output parameter acquisition module 35, which is used to use a parameter monitoring device to acquire the output parameters of the surge generating device; a test result generating module 36, which is used to send the output current and output parameters of the surge generating device to the control device, and the control device generates the test result.

[0051] The present application provides a vehicle charging surge test device, which sets the test parameters of the charging surge test based on the charging parameters of the new energy vehicle under test through a test parameter setting module 31; wherein the test parameters include the upper limit and lower limit of the charging current of the new energy vehicle under test; the output current generation module 32 controls the surge generating device to generate a surge pulse signal to be superimposed on the alternating current of the power grid to obtain the output current of the surge generating device; the output current acquisition module 33 uses a detection device to acquire the output current of the surge generating device; if the output current is greater than the upper limit or less than the lower limit, the alarm signal issuing module 34 controls the alarm device to issue an alarm signal; the output parameter acquisition module 35 uses a parameter monitoring device to acquire the output parameters of the surge generating device; the test result generation Module 36 sends the output current and output parameters of the surge generating device to the control device, and the control device generates the test results; that is, when performing a surge test on the new energy vehicle, the upper and lower limits of the charging current of the new energy vehicle are set, and the surge generating device is used to output the output current superimposed with the surge pulse signal. When the output current exceeds the set upper or lower limit range, an alarm signal is issued to remind the tester, and the output parameters are collected by the parameter monitoring device and sent to the control device to generate the test results, thereby greatly reducing the degree of manual participation in the test process, and the output parameters of the surge generating device can be monitored throughout the process to record the entire test process and provide detailed data support for the subsequent generation of test reports and analysis of the charging characteristics of new energy vehicles.

[0052] In one embodiment, the surge generating device includes a plurality of test point indicator lights, and the parameter monitoring device includes optical signal collectors respectively arranged at the plurality of test point indicator lights; wherein the output parameter acquisition module 35 can be further configured as: using a plurality of optical signal collectors to collect status information of a plurality of test point indicator lights; determining the test point information of the surge generating device based on the position information of the test point indicator lights whose status information is in the on state.

[0053] In one embodiment, the detection device includes a current probe and a magnetic ring. The current probe is connected to the main structure of the detection device through a sampling line. The current probe is sleeved on the charging line between the surge generating device and the new energy vehicle under test, and the magnetic ring is sleeved on the sampling line; wherein the above-mentioned output current acquisition module 33 can be further configured as: using the current probe to collect the output current of the surge generating device.

[0054] In one embodiment, the above-mentioned automobile charging surge test device 30 can be further configured as follows: if the output current is less than or equal to the upper limit value and greater than or equal to the lower limit value, then the current difference between the current output current and the output current at the previous cycle moment is calculated; wherein the previous cycle moment is a pulse interval time away from the current moment; if the current difference is greater than a preset current threshold, then the current output current is adjusted according to the output current at the previous cycle moment.

[0055] In one embodiment, the above-mentioned automobile charging surge test device 30 can be further configured as follows: if the current moment is within the surge pulse occurrence time period, the current output current = the output current at the previous cycle + half of the current difference; if the current moment is within the surge pulse interval time period, the current output current = the output current at the previous cycle, and the number of output current adjustments is increased by one; if the number of output current adjustments is greater than a preset number threshold, the alarm device is controlled to send an alarm signal.

[0056] In one embodiment, the above-mentioned automobile charging surge test device 30 can be further configured as follows: controlling the surge generating device to output a calibrated current; wherein the calibrated current is a standard sinusoidal current; using a detection device to collect the output current of the surge generating device to obtain a measured current; based on the calibrated current and the measured current, adjusting the collection parameters of the detection device; wherein the collection parameters include a delay time and a current correction coefficient of the detection device, wherein the delay time indicates the delay time of the current collected by the detection device relative to the current output by the surge generating device, and the current correction coefficient indicates the ratio of the current amplitude collected by the detection device to the current amplitude output by the surge generating device.

[0057] Below, reference Figure 4 The electronic device according to the embodiment of the present application is described. The electronic device may be any one or both of the first device and the second device, or a stand-alone device independent of them, and the stand-alone device may communicate with the first device and the second device to receive the collected input signal from them.

[0058] Figure 4 A block diagram of an electronic device according to an embodiment of the present application is illustrated.

[0059] like Figure 4 As shown, the electronic device 10 includes one or more processors 11 and a memory 12 .

[0060] The processor 11 may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device 10 to perform desired functions.

[0061] The memory 12 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, a random access memory (RAM) and / or a cache memory (cache), etc. The non-volatile memory may include, for example, a read-only memory (ROM), a hard disk, a flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 11 may run the program instructions to implement the methods of the various embodiments of the present application described above and / or other desired functions. Various contents such as input signals, signal components, noise components, etc. may also be stored in the computer-readable storage medium.

[0062] In one example, the electronic device 10 may further include: an input device 13 and an output device 14 , and these components are interconnected via a bus system and / or other forms of connection mechanisms (not shown).

[0063] When the electronic device is a stand-alone device, the input device 13 may be a communication network connector, which is used to receive the collected input signals from the first device and the second device.

[0064] In addition, the input device 13 may also include, for example, a keyboard, a mouse, and the like.

[0065] The output device 14 can output various information to the outside, including the determined distance information, direction information, etc. The output device 14 can include, for example, a display, a speaker, a printer, a communication network and a remote output device connected thereto, and the like.

[0066] Of course, to simplify, Figure 4 Only some of the components related to the present application in the electronic device 10 are shown, and components such as a bus, an input / output interface, etc. are omitted. In addition, according to specific application situations, the electronic device 10 may also include any other appropriate components.

[0067] In addition to the above-mentioned methods and devices, an embodiment of the present application may also be a computer program product, which includes computer program instructions, which, when executed by a processor, enable the processor to execute the steps of the method according to various embodiments of the present application described in the above-mentioned "Exemplary Method" section of this specification.

[0068] The computer program product may be written in any combination of one or more programming languages ​​to write program codes for performing the operations of the embodiments of the present application, including object-oriented programming languages, such as Java, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as an independent software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0069] In addition, an embodiment of the present application may also be a computer-readable storage medium on which computer program instructions are stored. When the computer program instructions are executed by a processor, the processor executes the steps of the method according to various embodiments of the present application described in the above "Exemplary Method" section of this specification.

[0070] The computer readable storage medium can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can include, for example, but is not limited to, a system, device or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0071] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0072] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0073] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0074] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0075] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A method for testing automobile charging surge, characterized in that: Applied to a vehicle charging surge test system, the vehicle charging surge test system includes a surge generating device, a detection device, a control device, a parameter monitoring device and an alarm device. One end of the surge generating device is connected to a power supply and the other end is connected to a new energy vehicle under test. The surge generating device is used to generate a surge pulse signal and superimpose it on the alternating current of the power grid and then transmit it to the new energy vehicle under test. The detection device is arranged between the surge generating device and the new energy vehicle under test. The detection device is used to detect the current value transmitted from the surge generating device to the new energy vehicle under test. The control device is connected to the surge generating device and the detection device. The control device is used to control the surge generating device to generate a surge pulse signal and record the current value detected by the detection device. The parameter monitoring device is connected to the surge generating device. The parameter monitoring device is used to monitor the output parameters of the surge generating device. The alarm device is connected to the detection device. The alarm device is used to send an alarm signal. Wherein, the vehicle charging surge test method includes: Based on the charging parameters of the new energy vehicle under test, setting the test parameters of the charging surge test; wherein the test parameters include the upper limit value and the lower limit value of the charging current of the new energy vehicle under test; Controlling the surge generating device to generate a surge pulse signal to be superimposed on the alternating current of the power grid to obtain an output current of the surge generating device; Using the detection device to collect the output current of the surge generating device; If the output current is greater than the upper limit or less than the lower limit, controlling the alarm device to send out an alarm signal; Using the parameter monitoring device to collect output parameters of the surge generating device; Sending the output current and output parameters of the surge generating device to the control device, and generating a test result by the control device; After the detection device is used to collect the output current of the surge generating device, the automobile charging surge testing method further includes: If the output current is less than or equal to the upper limit and greater than or equal to the lower limit, the current difference between the current output current and the output current at the last cycle is calculated; wherein the last cycle is a pulse interval away from the current moment; If the current difference is greater than a preset current threshold, adjusting the current output current according to the output current at the previous cycle; Wherein, adjusting the current output current according to the output current at the last cycle time includes: If the current moment is within the surge pulse occurrence time period, the current output current = the output current at the previous cycle moment + half of the current difference; If the current moment is within the surge pulse interval time period, the current output current = the output current at the previous cycle moment, and the number of output current adjustment times is increased by one; If the number of times the output current is adjusted is greater than a preset number threshold, the alarm device is controlled to send out an alarm signal.

2. The automobile charging surge testing method according to claim 1, characterized in that: The surge generating device includes a plurality of test point indicator lights, and the parameter monitoring device includes optical signal collectors respectively arranged at the plurality of test point indicator lights; wherein, the use of the parameter monitoring device to collect the output parameters of the surge generating device includes: Using a plurality of the optical signal collectors to collect status information of a plurality of the test point indicator lights; The test point information of the surge generating device is determined based on the position information of the test point indicator light whose status information is turned on.

3. The automobile charging surge testing method according to claim 1, characterized in that: The detection device includes a current probe and a magnetic ring, the current probe is connected to the main structure of the detection device through a sampling line, the current probe is sleeved on the charging line between the surge generating device and the new energy vehicle under test, and the magnetic ring is sleeved on the sampling line; wherein, the output current of the surge generating device is collected by using the detection device, including: The current probe is used to collect the output current of the surge generating device.

4. The automobile charging surge testing method according to claim 1, characterized in that: Before setting the test parameters of the charging surge test based on the charging parameters of the tested new energy vehicle, the vehicle charging surge test method further includes: Controlling the surge generating device to output a calibrated current; wherein the calibrated current is a standard sinusoidal current; The detection device is used to collect the output current of the surge generating device to obtain the measured current; Based on the calibrated current and the measured current, the acquisition parameters of the detection device are adjusted; wherein the acquisition parameters include the delay time of the detection device and the current correction coefficient, the delay time represents the delay length of the current collected by the detection device relative to the current output by the surge generating device, and the current correction coefficient represents the ratio of the current amplitude collected by the detection device to the current amplitude output by the surge generating device.

5. A vehicle charging surge test device, characterized in that: The vehicle charging surge test system is provided, and the vehicle charging surge test system includes a surge generating device, a detection device, a control device, a parameter monitoring device and an alarm device. One end of the surge generating device is connected to a power supply and the other end is connected to a new energy vehicle under test. The surge generating device is used to generate a surge pulse signal and superimpose it on the alternating current of the power grid and then transmit it to the new energy vehicle under test. The detection device is provided between the surge generating device and the new energy vehicle under test. The detection device is used to detect the current value transmitted from the surge generating device to the new energy vehicle under test. The control device is connected to the surge generating device and the detection device. The control device is used to control the surge generating device to generate a surge pulse signal and record the current value detected by the detection device. The parameter monitoring device is connected to the surge generating device. The parameter monitoring device is used to monitor the output parameters of the surge generating device. The alarm device is connected to the detection device. The alarm device is used to send an alarm signal. The vehicle charging surge test device includes: A test parameter setting module, used to set the test parameters of the charging surge test based on the charging parameters of the tested new energy vehicle; wherein the test parameters include the upper limit and lower limit of the charging current of the tested new energy vehicle; An output current generating module, used for controlling the surge generating device to generate a surge pulse signal to be superimposed on the alternating current of the power grid to obtain an output current of the surge generating device; An output current acquisition module, used to acquire the output current of the surge generating device using the detection device; an alarm signal issuing module, used for controlling the alarm device to issue an alarm signal if the output current is greater than the upper limit value or less than the lower limit value; An output parameter acquisition module, used to acquire output parameters of the surge generating device using the parameter monitoring device; A test result generating module, used for sending the output current and output parameters of the surge generating device to the control device, and the control device generates a test result; The automobile charging surge test device is further configured as follows: If the output current is less than or equal to the upper limit and greater than or equal to the lower limit, the current difference between the current output current and the output current at the last cycle is calculated; wherein the last cycle is a pulse interval away from the current moment; If the current difference is greater than a preset current threshold, adjusting the current output current according to the output current at the previous cycle; Wherein, adjusting the current output current according to the output current at the last cycle time includes: If the current moment is within the surge pulse occurrence time period, the current output current = the output current at the previous cycle moment + half of the current difference; If the current moment is within the surge pulse interval time period, the current output current = the output current at the previous cycle moment, and the number of output current adjustment times is increased by one; If the number of times the output current is adjusted is greater than a preset number threshold, the alarm device is controlled to send out an alarm signal.

6. A vehicle charging surge test system, characterized in that: include: A surge generating device, a detecting device, a controlling device, a parameter monitoring device, an alarm device and the automobile charging surge testing device as claimed in claim 5; Among them, one end of the surge generating device is connected to a power supply and the other end is connected to the new energy vehicle under test. The surge generating device is used to generate a surge pulse signal and transmit it to the new energy vehicle under test after being superimposed on the alternating current of the power grid. The detection device is arranged between the surge generating device and the new energy vehicle under test. The detection device is used to detect the current value transmitted from the surge generating device to the new energy vehicle under test. The control device is connected to the surge generating device and the detection device. The control device is used to control the surge generating device to generate a surge pulse signal and record the current value detected by the detection device. The parameter monitoring device is connected to the surge generating device. The parameter monitoring device is used to monitor the output parameters of the surge generating device. The alarm device is connected to the detection device. The alarm device is used to send an alarm signal.

7. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and the computer program is used to execute the automobile charging surge testing method described in any one of claims 1 to 4.

8. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is used to execute the automobile charging surge testing method described in any one of claims 1 to 4 above.

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