Three-electricity test method and device, electronic equipment and storage medium

Abstract

The invention provides a three-electricity testing method and device, electronic equipment and a storage medium, and relates to the technical field of three-electricity testing. The three-electricity testing method is based on a testing device, the testing device is connected with a three-electricity system through a bus, and the three-electricity testing method comprises the steps that testing data of the three-electricity system in the testing process are obtained through the bus; when the test data meets a preset condition corresponding to the three-electricity failure, an alarm is triggered, and the preset condition is determined by the relation between the test data obtained by the three-electricity system in the vibration test and the environment test and the three-electricity failure. According to the invention, the safety risk can be identified in advance, the test safety is ensured, the hysteresis of manual monitoring is solved, and the pre-judgment problem is solved, so that the occurrence of abnormal conditions is completely eradicated from the source; the preset condition can be determined according to the relation between the test data obtained by the vibration test and the environment test and the three-electricity failure, and the three-electricity test efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of three-electricity testing technology, and in particular to a three-electricity testing method, device, electronic equipment and storage medium. Background Art

[0002] In recent years, new energy vehicles, especially pure electric vehicles, have developed rapidly. However, the spontaneous combustion or fire of power batteries in new energy vehicles during charging, driving, and even in traffic accidents is particularly worrying. These fire accidents not only cause property losses, but are more likely to endanger personal safety, bringing major risks to car owners and people around them. Therefore, the safety of lithium-ion power batteries in electric vehicles has aroused widespread social concern and has become an important issue that needs to be solved in the industry. In order to ensure the safety of new energy vehicles, it is very necessary to conduct in-depth safety analysis and research on lithium-ion power batteries.

[0003] In the process of developing new energy battery packs, in order to ensure their safety in various extreme environments, a series of comprehensive R&D verification tests are required for the battery packs and the corresponding motors and electronic control systems. These tests are designed to simulate various extreme conditions that batteries and electric drives may encounter during actual use, such as vibration, mechanical shock, wet heat cycle, temperature shock, and salt spray test. Taking the battery pack test as an example, during the R&D verification test of the battery pack, battery pack leakage, insulation, voltage, temperature abnormalities, etc. may occur. If not discovered and handled in time, it may cause extreme situations such as fire or even explosion. Therefore, the test process needs to be monitored. At present, we can only rely on manual monitoring of the entire test process, and there is a certain lag in the discovery of abnormalities. Once an abnormality occurs, if it cannot be discovered and handled in time, there will be personal safety hazards to the monitoring personnel, which may cause personal safety and property losses. Summary of the invention

[0004] The problem solved by the present invention is how to ensure the safety of three-electricity testing.

[0005] In order to solve the above problems, the present invention provides a three-electric test method, device, electronic equipment and storage medium.

[0006] In a first aspect, the present invention provides a three-electric test method, based on a test device, the test device is connected to a three-electric system through a bus, and the three-electric test method includes:

[0007] Acquiring test data of the three-electric system during the test process through the bus;

[0008] When the test data meets the preset conditions corresponding to the three-electric failure, an alarm is triggered, wherein the preset conditions are determined by the relationship between the test data obtained in the vibration test and the environmental test of the three-electric system and the three-electric failure.

[0009] Optionally, the test device includes an interface device and a test terminal, the interface device is connected to the three-electric system through the bus, and the interface device is connected to the test terminal through a preset interface; the acquiring test data of the three-electric system during the test process through the bus includes:

[0010] Acquire the test data from the three-electric system through the interface device and the bus;

[0011] The test data is monitored.

[0012] Optionally, monitoring the test data through the test terminal includes:

[0013] comparing the test data with a preset safety threshold;

[0014] When the test data exceeds or is lower than the preset safety threshold, it is determined that the test data meets the preset condition.

[0015] Optionally, the test data includes insulation value, temperature and voltage of the battery pack, or speed, voltage and current of the motor, or voltage and current of the electronic control system, and comparing the test data with a preset safety threshold includes:

[0016] The insulation value is compared with a preset insulation threshold, the temperature is compared with a preset temperature threshold, and the voltage is compared with a preset voltage threshold, or the speed of the motor is compared with a preset motor speed, the voltage of the motor is compared with a preset motor voltage, and the current of the motor is compared with a preset motor current, or the voltage of the electronic control system is compared with a preset electronic control system voltage, and the current of the electronic control system is compared with a preset electronic control system current.

[0017] Optionally, the process of determining the preset safety threshold includes:

[0018] Build a vibration test platform and an environmental test platform, obtain vibration data, environmental data, electrical data and temperature data of the three-electric system in the vibration test and environmental test, and establish a mathematical model between each data and the three-electric failure;

[0019] The preset safety threshold corresponding to each data is determined according to the mathematical model, wherein each data corresponds to a plurality of preset safety thresholds, and different preset safety thresholds correspond to different failure probabilities.

[0020] Optionally, the establishing of a mathematical model between each data and three-electric failure includes:

[0021] Taking each data as an independent variable and the failure probability as a dependent variable, a corresponding regression model is constructed;

[0022] Fitting the regression model using a training set to determine the regression coefficient of the regression model corresponding to each of the independent variables;

[0023] The fitting effect of the regression model is evaluated, and the regression model is optimized according to the evaluation result to obtain a well-established mathematical model.

[0024] Optionally, the test terminal is connected to an audible and visual alarm via a relay, and the triggering of an alarm includes: controlling the audible and visual alarm to sound an alarm via the relay.

[0025] In a second aspect, the present invention provides a three-electric test device, based on a test device, the test device is connected to a three-electric system through a bus, and the three-electric test device includes:

[0026] The first module is used to obtain test data of the three-electric system during the test process through the bus;

[0027] The second module is used to trigger an alarm when the test data meets the preset conditions corresponding to the three-electric failure, wherein the preset conditions are determined by the relationship between the test data obtained in the vibration test and the environmental test of the three-electric system and the three-electric failure.

[0028] In a third aspect, the present invention provides an electronic device, including a memory and a processor;

[0029] The memory is used to store computer programs;

[0030] The processor is used to implement the three-electric testing method as described in the first aspect when executing the computer program.

[0031] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the three-electric test method as described in the first aspect is implemented.

[0032] The beneficial effects of the three-electric testing method of the present invention are as follows: corresponding test data can be obtained from the three-electric system through the bus. When the test data meets the preset conditions corresponding to the three-electric failure, for example, when the insulation value, temperature and voltage of the battery pack system exceed the corresponding safety threshold, an alarm is triggered to identify safety risks in advance, ensure test safety, solve the lag of manual monitoring, predict problems in advance, and thus eliminate the occurrence of abnormal situations from the root; the preset conditions can be determined based on the relationship between the test data obtained from the vibration test and the environmental test and the three-electric failure, that is, the preset conditions are determined in advance through the vibration test and the environmental test, and the preset conditions can be directly used as the standard for defining the three-electric failure during the three-electric test, effectively improving the efficiency of the three-electric test. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the process of the three-electric test method according to an embodiment of the present invention;

[0034] Figure 2 A schematic diagram of a process for obtaining test data according to an embodiment of the present invention;

[0035] Figure 3 A schematic diagram of a process for monitoring test data according to an embodiment of the present invention;

[0036] Figure 4 A schematic diagram of a process for determining a preset safety threshold according to an embodiment of the present invention;

[0037] Figure 5 A schematic diagram of a flow chart of establishing a mathematical model according to an embodiment of the present invention;

[0038] Figure 6 A system architecture diagram of a three-electric test device according to an embodiment of the present invention;

[0039] Figure 7 4 is a system architecture diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0041] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0042] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0043] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0044] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0045] like Figure 1 As shown, an embodiment of the present invention provides a three-electric test method, based on a test device, the test device is connected to a three-electric system through a bus, and the three-electric test method includes:

[0046] S100: Acquire test data of the three-electric system during the test process through the bus.

[0047] Specifically, the test device is connected to the three-electric system (which can be placed on a vibration and environmental test bench) through a bus (such as a CAN bus), and can obtain corresponding test data from the three-electric system through the bus.

[0048] S200: When the test data meets the preset conditions corresponding to the three-electric failure, an alarm is triggered, wherein the preset conditions are determined by the relationship between the test data obtained in the vibration test and the environmental test of the three-electric system and the three-electric failure.

[0049] Specifically, in the related art, the charging and discharging test equipment and the battery pack (test sample) can exchange data in real time during the test process, and timely alarm and stop the test when the sample is abnormal. However, the environment, vibration and other test equipment have no data exchange and abnormal monitoring function with the tested sample, and can only rely on manual monitoring of the sample during the test. The problem discovery has a lag, and automatic monitoring and alarm are not achieved at the same time, resulting in the failure to feedback and issue alarms in the first time for abnormal phenomena, which may cause property losses. In this embodiment, the test data of the three-electric system can be monitored. When the test data meets the preset conditions corresponding to the three-electric failure, such as the insulation value, temperature and voltage of the battery pack system exceed the corresponding safety threshold, an alarm is triggered to identify safety risks in advance, ensure test safety, solve the lag of manual monitoring, and predict problems in advance, so as to eliminate the occurrence of abnormal situations from the root; wherein, the preset conditions can be determined according to the relationship between the test data obtained by the vibration test and the environmental test and the three-electric failure.

[0050] Among them, the three-electric testing method of this embodiment does not rely on a test bench, can be used alone in any scenario test process, can be moved quickly, realize real-time monitoring of test samples, and ensure test safety; and the price is relatively low, and can be promoted and used on a large scale.

[0051] Among them, the three-electric test method of this embodiment can also be applied to the test and detection process of samples such as electric drive, BMS (Battery Management System), OBC (On-board Charger), etc., and can realize unattended real-time monitoring, and can also form a large system to realize unified data monitoring, thereby eliminating abnormal situations from the root and preventing personal safety hazards and property losses; for example, the large system can be divided into several modules such as front-end monitoring, data transmission and storage, and back-end processing and analysis. The front-end monitoring module is used to monitor the various parameters of the battery pack, drive system or other test products in real time (such as voltage, current, temperature, insulation value, etc.). Usually, these sensors are connected to local data acquisition equipment to collect data and transmit the data to the central control system through an interface; the data collected by the data transmission and storage module needs to be transmitted to the central server or cloud platform through a reliable communication method (such as wireless communication, wired communication); the back-end processing and analysis module is responsible for real-time analysis, trend prediction and abnormality detection of the data. When certain specific conditions are detected (such as excessive battery temperature, abnormal charging current, etc.), the system can trigger an alarm and take emergency measures.

[0052] In this embodiment, corresponding test data can be obtained from the three-electric system through the bus. When the test data meets the preset conditions corresponding to the three-electric failure, for example, when the insulation value, temperature and voltage of the three-electric system exceed the corresponding safety threshold, an alarm is triggered to identify safety risks in advance, ensure test safety, solve the lag of manual monitoring, predict problems in advance, and thus eliminate abnormal situations from the root. The preset conditions can be determined based on the relationship between the test data obtained from the vibration test and the environmental test and the three-electric failure, that is, the preset conditions are determined in advance through the vibration test and the environmental test, and the preset conditions can be directly used as the standard for defining the three-electric failure during the three-electric test, which effectively improves the battery testing efficiency.

[0053] Optionally, the test device includes an interface device and a test terminal, the interface device is connected to the three-electric system through the bus, and the interface device is connected to the test terminal through a preset interface; the acquiring test data of the three-electric system during the test process through the bus includes:

[0054] S110: Acquire the test data from the three-electric system through the interface device and the bus.

[0055] Specifically, combined Figure 2 As shown, the test apparatus includes an interface device (such as Canalyzer hardware) and a test terminal, wherein the interface device is responsible for connecting the test terminal (such as a computer) to the CAN bus and providing different interface options (such as USB), and the interface device is responsible for collecting test data from the CAN bus and transmitting it to the test terminal.

[0056] S120: monitoring the test data.

[0057] Specifically, combined Figure 2 As shown, in the test terminal, the test data can be monitored and whether there is an abnormality can be determined based on the set safety threshold.

[0058] In this optional embodiment, after acquiring the test data from the three-electric system through the interface device and the bus, the test data is monitored through the test terminal, so that safety risks can be identified in time to ensure test safety.

[0059] Optionally, monitoring the test data through the test terminal includes:

[0060] S121: Compare the test data with a preset safety threshold.

[0061] Specifically, combined Figure 3As shown, a Canalyzer capl control program is integrated in the test terminal, and a preset safety threshold is written into the Canalyzer capl control program in advance. After the test data is obtained, the test data can be compared with the preset safety threshold.

[0062] Among them, the Canalyzer capl control program is usually used to write control programs to simulate the sending and receiving of messages and signals, as well as the response to certain conditions during the test process. The Canalyzer capl control program allows developers to write custom scripts, which can accurately control the messages and signals of the CAN bus according to specific needs. Users can customize the settings according to actual test requirements. Through the Canalyzer capl control program, various complex test conditions can be simulated and controlled, and various test scenarios and abnormal situations can be flexibly simulated. For example, the automatic sending and receiving of CAN bus messages can be realized, and the test process can be automatically controlled, so that the test process no longer relies on manual intervention; and the Canalyzer capl control program supports real-time debugging in the Canalyzer software, allowing users to dynamically view variable values, signal status, event triggering, etc. during the test process. It can also generate log records to record the execution of each test in detail, which is convenient for subsequent analysis and troubleshooting.

[0063] S122: When the test data exceeds or is lower than the preset safety threshold, determine that the test data meets the preset condition.

[0064] Specifically, combined Figure 3 As shown, when the test data exceeds or falls below a preset safety threshold, it is determined that the test data meets the preset conditions, indicating that the test data is abnormal, and an alarm is triggered.

[0065] In addition to threshold alarms, historical data and trends can also be combined for more intelligent alarms. For example, machine learning or big data analysis can be used to predict potential failures and issue early warnings based on the historical performance trends of batteries or equipment.

[0066] In this optional embodiment, by setting a preset safety threshold, security risks can be identified in a timely manner when test data exceeds the preset safety threshold, thereby ensuring test safety.

[0067] Optionally, the test data includes insulation value, temperature and voltage of the battery pack, or speed, voltage and current of the motor, or voltage and current of the electronic control system, and comparing the test data with a preset safety threshold includes:

[0068] The insulation value is compared with a preset insulation threshold, the temperature is compared with a preset temperature threshold, and the voltage is compared with a preset voltage threshold, or the speed of the motor is compared with a preset motor speed, the voltage of the motor is compared with a preset motor voltage, and the current of the motor is compared with a preset motor current, or the voltage of the electronic control system is compared with a preset electronic control system voltage, and the current of the electronic control system is compared with a preset electronic control system current.

[0069] Specifically, for a battery pack, the preset insulation threshold is the minimum standard for insulation performance. When the insulation value is lower than the preset insulation threshold, it indicates that the battery pack may be short-circuited, leaking electricity, or leaking electricity. When the temperature is higher than the preset temperature threshold, it indicates that the battery pack may be overheated, have performance degradation, or have accelerated aging. When the voltage is higher than the preset voltage threshold, it indicates that the battery pack may have electrical component damage, circuit short circuit, and other faults. Correspondingly, the speed, voltage, and current of the motor, as well as the voltage and current of the electronic control system, can also be judged by the corresponding preset thresholds to determine whether there is a fault.

[0070] In this optional embodiment, by comparing each test data with the corresponding preset safety threshold, safety risks can be identified in a timely manner to ensure test safety.

[0071] Optionally, the process of determining the preset safety threshold includes:

[0072] S010: Build a vibration test platform and an environmental test platform, obtain vibration data, environmental data, electrical data and temperature data of the three-electric system in the vibration test and environmental test, and establish a mathematical model between each data and the three-electric failure.

[0073] Specifically, combined Figure 4 As shown, taking the battery pack test as an example, the vibration environment that the battery pack may encounter during actual use is simulated. For example, a vibration test platform is built, and vibration environments of different frequencies and intensities are simulated through vibration tables and other equipment. The vibration parameters (frequency range, acceleration, duration, etc.) are set, and the responses of the battery pack at different frequencies, amplitudes, and directions are tested to determine the impact of vibration on the internal components of the battery pack. At the same time, an environmental test platform can also be built to simulate different temperatures, humidity, air pressures, corrosive gases and other conditions to test the impact of temperature, humidity, climate and other factors on the battery pack. The parameter range of the simulated environment can be set according to the actual application scenario, such as simulating high temperature, low temperature, damp heat and other environments, thereby simulating the working performance of the battery pack under different environmental conditions.

[0074] Among them, the mathematical model can be established through regression analysis methods. Taking nonlinear regression as an example (that is, the impact of temperature or vibration on three-electric failure is not a linear growth), select a suitable nonlinear function (such as exponential function, logarithmic function, power function, etc.), and select the most suitable model according to the characteristics of the data. Estimate the parameters of the nonlinear model by minimizing the error, and use goodness of fit, residual analysis and other methods to evaluate the effect of the model; in model training and verification, the data in the training set can be used to fit the regression model to obtain the regression coefficient (linear regression) or model parameters (nonlinear regression) of each independent variable, or select optimization algorithms such as gradient descent or least squares method to train the model. According to the results of the regression model, the safety threshold can be determined.

[0075] S020: Determine a preset safety threshold corresponding to each data according to the mathematical model, wherein each data corresponds to multiple preset safety thresholds, and different preset safety thresholds correspond to different failure probabilities.

[0076] Specifically, combined Figure 4 As shown in the figure, based on the in-depth summary and verification of vibration and environmental test data, the regression analysis method is used to establish a mathematical model between vibration data (acceleration, vibration amplitude, frequency, etc.), environmental data (temperature, humidity, air pressure, etc.), electrical data (battery voltage, current, insulation resistance, etc.) and temperature data (temperature distribution inside or outside the battery pack, especially temperature changes in high or low temperature environments) and three-electric failure. By analyzing the influence of different parameters on the performance of the battery pack, the influence of various factors (such as temperature, insulation resistance, current, voltage, etc.) on the battery pack under different conditions is evaluated. For example, the relationship between data such as voltage sharp change, insulation value drop, temperature abnormality and three-electric failure can be analyzed, and the safety thresholds of insulation, temperature, voltage, etc. can be clarified.

[0077] Among them, each data corresponds to multiple preset safety thresholds. For example, when the temperature safety threshold is A℃, the corresponding failure probability is 50%. When the temperature safety threshold is A+10℃, the corresponding failure probability is 80%. Users can select the corresponding preset safety threshold when conducting battery testing. For example, when conducting a mild high temperature test, select A℃ as the temperature safety threshold. When conducting an extreme high temperature test, select A+10℃ as the temperature safety threshold.

[0078] In this optional embodiment, by building a vibration test platform and an environmental test platform, a preset safety threshold is determined based on the relationship between the test data and the three-electric failure, and an alarm is triggered in time when the test data exceeds or falls below the preset safety threshold to ensure test safety.

[0079] Optionally, the establishing of a mathematical model between each data and three-electric failure includes:

[0080] S011: Taking each data as an independent variable and the failure probability as a dependent variable, a corresponding regression model is constructed.

[0081] Specifically, combined Figure 5 As shown, temperature, insulation resistance, current, and voltage are selected as independent variables, the probability of failure events is selected as the dependent variable, and exponential functions, logarithmic functions, power functions, etc. are selected to construct the corresponding regression model.

[0082] S012: Fitting the regression model using the training set to determine the regression coefficient of the regression model corresponding to each of the independent variables.

[0083] Specifically, combined Figure 5 As shown, the data set is divided into a training set and a test set (the test set can be used to verify the performance of the regression model), and the regression model is fitted using the data in the training set to obtain the regression coefficient or model parameter of each independent variable.

[0084] S013: Evaluate the fitting effect of the regression model, optimize the regression model according to the evaluation result, and obtain a well-established mathematical model.

[0085] Specifically, combined Figure 5 As shown, the fitting effect of the regression model can be evaluated by goodness of fit and the like, and the regression model can be optimized according to the evaluation result to obtain a well-established mathematical model.

[0086] In this optional embodiment, by establishing a mathematical model between various data and three-electric failures, the impact of various factors on three-electric failures can be accurately quantified, thereby identifying key risk factors and setting corresponding safety thresholds.

[0087] Optionally, the test terminal is connected to an audible and visual alarm via a relay, and the triggering of an alarm includes: controlling the audible and visual alarm to sound an alarm via the relay.

[0088] Specifically, the relay is connected to the test device through a bus, and after the test device confirms that the alarm is triggered, the relay controls the sound and light alarm to sound; as a switching device, the relay can control high-voltage, high-current equipment under low-voltage, low-current signals. The sound and light alarm usually requires a large current to drive, and the relay can close (or open) the circuit according to the control signal, thereby controlling whether the alarm works; for example, the sound and light alarm usually has two main ports: the power input terminal and the signal input terminal (usually the port for controlling the alarm), and the relay has three main ports: the normally open contact (NO), the normally closed contact (NC) and the common contact (COM). The input terminal of the sound and light alarm is selected according to the working state of the relay; Normally open contact (NO): when the relay is not working, the normally open contact and the common contact are disconnected. After the relay works, the normally open contact Normally closed contact (NC): when the relay is working, the normally closed contact and the common contact are disconnected, and when the relay is not working, they are closed; the normally open contact (NO) and the common contact (COM) of the relay are connected to the signal input terminal of the sound and light alarm, the control terminal of the relay is connected to the control signal source (i.e., the test device), and the power input terminal of the sound and light alarm is connected to the power supply (e.g., 220V) to ensure that the working voltage of the alarm is normal; when the alarm condition is met, the control signal will input a trigger signal to the relay through the control terminal. After receiving the signal, the relay will close the normally open contact (NO) and the common contact (COM), thereby connecting the power supply to the signal input terminal of the sound and light alarm, making the alarm work and emit an alarm sound and flashing lights. By controlling the operation of the relay, the alarm can be turned on or off under specific conditions.

[0089] In addition to sound and light alarms, visual alarms can also be used to display warning information and notification alarms through the UI interface of the control center (such as the dashboard, graphical interface, etc.), and send alarms to relevant personnel through SMS, email, APP push, WeChat, etc.

[0090] In this optional embodiment, after the test device confirms that the alarm is triggered, the sound and light alarm is controlled by the relay to ensure the safety of the test.

[0091] Optionally, the three-electricity testing method further includes: when the test data is abnormal, stopping the battery test.

[0092] Specifically, when the test data is abnormal, there may be abnormal conditions such as short circuit, overheating, overvoltage, etc., which may cause fire, explosion or other safety accidents, and may also cause overload or damage to the test equipment. At this time, it is necessary to stop the battery test to ensure the safety and reliability of the test and the validity of the data. Taking the battery pack test as an example, when stopping the battery test, it is necessary to turn off the battery management system, test power supply, data acquisition device, etc. to ensure the safety of the battery test process, the protection of the equipment and the smooth progress of subsequent operations.

[0093] In this optional embodiment, when the test data is abnormal, the battery test is stopped to ensure the safety of the test.

[0094] like Figure 6 As shown, an embodiment of the present invention provides a three-electric test device 600, based on a test device, the test device is connected to a three-electric system through a bus, and the three-electric test device 600 includes:

[0095] The first module 610 is used to obtain test data of the three-electric system during the test process through the bus;

[0096] The second module 620 is used to trigger an alarm when the test data meets the preset conditions corresponding to the three-electric failure, wherein the preset conditions are determined by the relationship between the test data obtained in the vibration test and the environmental test of the three-electric system and the three-electric failure.

[0097] like Figure 7 As shown, an electronic device 700 provided by an embodiment of the present invention includes a memory 720 and a processor 710; the memory 720 is used to store a computer program; the processor 710 is used to implement the three-electric test method as described above when executing the computer program.

[0098] In other words, an electronic device 700 includes a memory 720 and a processor 710 coupled to the memory 720; the memory 720 is configured to store a computer program; and the processor 710 is configured to perform the following operations when executing the computer program:

[0099] Acquiring test data of the three-electric system during the test process through the bus;

[0100] When the test data meets the preset conditions corresponding to the three-electric failure, an alarm is triggered, wherein the preset conditions are determined by the relationship between the test data obtained in the vibration test and the environmental test of the three-electric system and the three-electric failure.

[0101] An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the three-electric test method described above is implemented.

[0102] In other words, a non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor performs the following operations:

[0103] Acquiring test data of the three-electric system during the test process through the bus;

[0104] When the test data meets the preset conditions corresponding to the three-electric failure, an alarm is triggered, wherein the preset conditions are determined by the relationship between the test data obtained in the vibration test and the environmental test of the three-electric system and the three-electric failure.

[0105] An electronic device 700 that can be used as a server or client of the present invention will now be described, which is an example of a hardware device that can be applied to various aspects of the present invention. The electronic device 700 is intended to represent various forms of digital electronic computer equipment, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device 700 can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples, and are not intended to limit the implementation of the present invention described herein and / or required.

[0106] The electronic device 700 includes a computing unit, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) or a computer program loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for the operation of the device can also be stored. The computing unit, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0107] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc. In the present application, the unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment of the present invention. In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0108] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A three-electric test method, characterized in that: Based on a test device, the test device is connected to the three-electric system through a bus, and the three-electric test method includes: Acquiring test data of the three-electric system during the test process through the bus; When the test data meets the preset conditions corresponding to the three-electric failure, an alarm is triggered, wherein the preset conditions are determined by the relationship between the test data obtained in the vibration test and the environmental test of the three-electric system and the three-electric failure.

2. The three-electricity testing method according to claim 1, characterized in that: The test device comprises an interface device and a test terminal, wherein the interface device is connected to the three-electric system via the bus, and the interface device is connected to the test terminal via a preset interface; The acquiring the test data of the three-electric system during the test process through the bus includes: Acquire the test data from the three-electric system through the interface device and the bus; The test data is monitored.

3. The three-electricity testing method according to claim 2, characterized in that: The monitoring of the test data comprises: comparing the test data with a preset safety threshold; When the test data exceeds or is lower than the preset safety threshold, it is determined that the test data meets the preset condition.

4. The three-electricity testing method according to claim 3, characterized in that: The test data includes the insulation value, temperature and voltage of the battery pack, or the speed, voltage and current of the motor, or the voltage and current of the electronic control system, and comparing the test data with the preset safety threshold includes: The insulation value is compared with a preset insulation threshold, the temperature is compared with a preset temperature threshold, and the voltage is compared with a preset voltage threshold, or the speed of the motor is compared with a preset motor speed, the voltage of the motor is compared with a preset motor voltage, and the current of the motor is compared with a preset motor current, or the voltage of the electronic control system is compared with a preset electronic control system voltage, and the current of the electronic control system is compared with a preset electronic control system current.

5. The three-electricity testing method according to claim 3, characterized in that: The process of determining the preset safety threshold includes: Build a vibration test platform and an environmental test platform, obtain vibration data, environmental data, electrical data and temperature data of the three-electric system in the vibration test and environmental test, and establish a mathematical model between each data and the three-electric failure; The preset safety threshold corresponding to each data is determined according to the mathematical model, wherein each data corresponds to a plurality of preset safety thresholds, and different preset safety thresholds correspond to different failure probabilities.

6. The three-electricity testing method according to claim 5, characterized in that: The establishment of a mathematical model between each data and three-electric failure includes: Taking each data as an independent variable and the failure probability as a dependent variable, a corresponding regression model is constructed; Fitting the regression model using a training set to determine the regression coefficient of the regression model corresponding to each of the independent variables; The fitting effect of the regression model is evaluated, and the regression model is optimized according to the evaluation result to obtain a well-established mathematical model.

7. The three-electricity testing method according to claim 2, characterized in that: The test terminal is connected to the sound and light alarm through a relay, and the triggering of the alarm includes: controlling the sound and light alarm to alarm through the relay.

8. A three-electric test device, characterized in that: Based on a test device, the test device is connected to the three-electric system through a bus, and the three-electric test device includes: The first module is used to obtain test data of the three-electric system during the test process through the bus; The second module is used to trigger an alarm when the test data meets the preset conditions corresponding to the three-electric failure, wherein the preset conditions are determined by the relationship between the test data obtained in the vibration test and the environmental test of the three-electric system and the three-electric failure.

9. An electronic device, characterized in that: including memory and processor; The memory is used to store computer programs; The processor is used to implement the three-electrical testing method according to any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the three-electric testing method according to any one of claims 1 to 7 is implemented.

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