A vehicle bench wire harness short-circuit test method, device, equipment and medium

Abstract

The present invention discloses a method, device, equipment and medium for short-circuit testing of a whole vehicle bench wire harness. The method comprises: obtaining current data, voltage data and temperature data of a short-circuit test circuit during the short-circuit test of the whole vehicle bench wire harness; obtaining video data during the short-circuit test of the whole vehicle bench wire harness, wherein the video data comprises a video image of the whole vehicle bench wire harness short-circuit test acquired by a camera; analyzing current data, voltage data, temperature data and video data, and judging whether the fuse to be tested in the short-circuit test circuit meets the preset requirements according to the analysis results; and automatically generating a test report for the short-circuit test of the whole vehicle bench wire harness according to the judgment results. The technical solution of the embodiment of the present invention standardizes the operation process of the whole vehicle test and improves the work efficiency of the whole vehicle short-circuit test.

Description

Technical Field

[0001] The present invention relates to the technical field of testing systems, and in particular to a method, device, equipment and medium for testing short-circuit of an electric wire harness on a vehicle test bench. Background Art

[0002] With the increase in the number of automotive electronic and electrical sensors, controllers, and actuators, the electrical environment of the entire vehicle has become more complex, and controller short circuits are very likely to occur. Insurance is the last safety guarantee for the entire vehicle when this phenomenon occurs.

[0003] As the communication between the electronic and electrical controllers of the vehicle is complicated, the fuse design in the vehicle wiring harness is relatively complex. It is common that the fuse takes too long to blow, causing the wiring harness to overload and generate heat, or even in extreme cases, the risk of spontaneous combustion of the entire vehicle, which poses a great safety hazard. The test of the fuse inside the vehicle is often completely dependent on manual testing, that is, the quality inspectors test the insurance device inside the vehicle and fill in the corresponding test report based on the test results.

[0004] Testing is the most important part of vehicle quality control. Faced with complex vehicle testing scenarios, manual testing has low efficiency and is prone to human errors. How to quickly and accurately analyze whether there is a safety hazard in the vehicle wiring harness short circuit is an important problem that needs to be solved urgently in vehicle quality control. Summary of the invention

[0005] The present invention provides a method, device, equipment and medium for testing a short circuit of an electric harness of a whole vehicle test bench, so as to solve the problem of whether there is a potential safety hazard when testing a short circuit of an electric harness of a whole vehicle test bench.

[0006] In a first aspect, an embodiment of the present invention provides a vehicle test bench wiring harness short circuit test method, comprising:

[0007] Acquire current data, voltage data and temperature data of the short-circuit test circuit during the short-circuit test of the vehicle test bench wiring harness, wherein the voltage data includes voltage data of the battery in the short-circuit test circuit acquired by a voltage sensor, and the temperature data includes temperature data of the distribution box and the load in the short-circuit test circuit acquired by a temperature sensor, wherein the distribution box includes the fuse to be tested;

[0008] Acquire video data during the short-circuit test of the whole vehicle test bench wire harness, wherein the video data includes a video image acquired by a camera during the short-circuit test of the whole vehicle test bench wire harness;

[0009] Analyze the current data, voltage data, temperature data and video data, and determine whether the fuse to be tested in the short-circuit test circuit meets preset requirements according to the analysis results;

[0010] A test report of the vehicle test bench wiring harness short-circuit test is automatically generated according to the judgment result.

[0011] In a second aspect, an embodiment of the present invention provides a vehicle bench wire harness short circuit test device, comprising:

[0012] A data acquisition module, used to acquire current data, voltage data and temperature data of a short-circuit test circuit during a short-circuit test of a vehicle test bench wiring harness, wherein the voltage data includes voltage data of a battery in the short-circuit test circuit acquired by a voltage sensor, and the temperature data includes temperature data of a distribution box and a load in the short-circuit test circuit acquired by a temperature sensor;

[0013] A video data acquisition module, used to acquire video data during the short-circuit test of the whole vehicle test bench wire harness, wherein the video data includes a video image of the whole vehicle test bench wire harness short-circuit test acquired by a camera;

[0014] A fuse judgment module is used to analyze the current data, voltage data, temperature data and video data, and judge whether the fuse to be tested in the short-circuit test circuit meets the preset requirements according to the analysis results;

[0015] The test report generation module is used to automatically generate a test report for the vehicle test bench wiring harness short circuit test according to the judgment result.

[0016] In a third aspect, an embodiment of the present invention provides an electronic device, the electronic device comprising:

[0017] at least one processor;

[0018] and a memory communicatively coupled to the at least one processor;

[0019] The memory stores a computer program that can be executed by at least one processor, and the computer program is executed by at least one processor so that the at least one processor can execute the vehicle bench wiring harness short-circuit test method of the first aspect mentioned above.

[0020] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer instructions, which are used to implement the vehicle bench wiring harness short-circuit test method of the first aspect when executed by a processor.

[0021] The embodiment of the present invention provides a short-circuit test scheme for a whole vehicle test bench wire harness, which obtains current data, voltage data and temperature data of the short-circuit test circuit during the short-circuit test of the whole vehicle test bench wire harness, wherein the voltage data includes the voltage data of the battery in the short-circuit test circuit obtained by a voltage sensor, and the temperature data includes the temperature data of the distribution box and the load in the short-circuit test circuit obtained by a temperature sensor, and the distribution box includes the fuse to be tested, and obtains video data during the short-circuit test of the whole vehicle test bench wire harness, wherein the video data includes a video image of the whole vehicle test bench wire harness during the short-circuit test obtained by a camera, analyzes the current data, voltage data, temperature data and video data, and determines whether the fuse to be tested in the short-circuit test circuit meets the preset requirements according to the analysis results, and automatically generates a test report for the short-circuit test of the whole vehicle test bench wire harness according to the determination result. By adopting the above technical solution, by collecting and analyzing the current data, voltage data, temperature data and video data of the short-circuit test circuit, it is possible to determine whether the fuse to be tested meets the preset requirements and generate a complete test report. It is suitable for a variety of vehicle testing scenarios, standardizes the operating procedures of vehicle testing, and improves the work efficiency of vehicle short-circuit testing.

[0022] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a flow chart of a vehicle test bench wiring harness short circuit testing method provided according to the first embodiment of the present invention;

[0025] Figure 2 This is a flow chart of a vehicle test bench wiring harness short circuit testing method provided according to the second embodiment of the present invention;

[0026] Figure 3 This is a current-time relationship diagram of a short-circuit test of a wiring harness on a vehicle test bench provided according to the second embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of a test report for a short-circuit test of a wiring harness on a vehicle test bench provided in accordance with the second embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of a short-circuit test circuit for a vehicle test bench wiring harness provided according to a second embodiment of the present invention;

[0029] Figure 6 It is a structural schematic diagram of a vehicle bench wire harness short-circuit test device provided according to the third embodiment of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of an electronic device provided according to Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In the description of the present invention, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are an "or" relationship. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] Embodiment 1

[0034] Figure 1A flow chart of a method for short-circuit testing of a vehicle test bench wire harness is provided for the first embodiment of the present invention. This embodiment is applicable to the scenario of short-circuit testing of a vehicle test bench wire harness. The method can be performed by a short-circuit testing device for a vehicle test bench wire harness. The short-circuit testing device for a vehicle test bench wire harness can be implemented in the form of hardware and / or software. The short-circuit testing device for a vehicle test bench wire harness can be configured in an electronic device. The electronic device can be composed of two or more physical entities or one physical entity.

[0035] like Figure 1 As shown, the first embodiment of the present invention provides a vehicle test bench wiring harness short circuit test method, which specifically includes the following steps:

[0036] S101. Obtain current data, voltage data, and temperature data of a short-circuit test circuit during a short-circuit test of a wiring harness on a vehicle test bench.

[0037] The voltage data includes the voltage data of the battery in the short-circuit test circuit obtained by a voltage sensor, the temperature data includes the temperature data of the distribution box and the load in the short-circuit test circuit obtained by a temperature sensor, and the distribution box includes the fuse to be tested.

[0038] In this embodiment, the short-circuit test circuit may include components such as a battery, a load, a switch, and a distribution box. The current data of the short-circuit test circuit may be the current value passing through the distribution box in the short-circuit test circuit measured by the current sensor, or may be regarded as the current value passing through the fuse to be tested. The data output by the current sensor, the voltage sensor, and the temperature sensor are generally voltage analog signals.

[0039] S102, obtaining video data during the vehicle test bench wiring harness short-circuit test.

[0040] Among them, the video data includes video images obtained by the camera during the short-circuit test of the vehicle bench wiring harness.

[0041] In this embodiment, one or more high-definition cameras and / or thermal cameras can be configured at the site of the short-circuit test of the whole vehicle bench wire harness to record the video image of the short-circuit test circuit in real time during the short-circuit test of the whole vehicle bench wire harness. Among them, the high-definition camera can be used to record the local detail image of the short-circuit test circuit or whether the short-circuit test circuit is connected correctly and the corresponding connection personnel, and the thermal camera can be used to record the temperature distribution image of the components and wires in the short-circuit test circuit. The temperature distribution image can be used to monitor and record the temperature distribution of the components and cables on the short-circuit test circuit in real time during the short-circuit test. For example, when the cable or component is burned, the cause can be analyzed based on the temperature distribution image data.

[0042] S103, analyzing the current data, voltage data, temperature data and video data, and judging whether the fuse to be tested in the short-circuit test circuit meets the preset requirements according to the analysis results.

[0043] In this embodiment, by analyzing the current data, voltage data, temperature data and video data, it is possible to comprehensively determine whether the fuse to be tested in the short-circuit test circuit meets the preset requirements, wherein the preset requirements can be set according to public technical specifications such as the "Vehicle Wiring Harness Short-Circuit Test Specifications", or can be set according to the vehicle manufacturer's customized technical requirements, such as: the maximum current that the fuse can withstand.

[0044] Optionally, there are multiple fuses to be tested, and the video data includes dynamic image data of the multiple fuses to be tested and the test bench wire harness during the short-circuit test of the whole vehicle test bench wire harness.

[0045] In this embodiment, multi-level fuses can be used in the vehicle test bench wiring harness to ensure the safety of the entire vehicle. Therefore, there can be multiple fuses to be tested in the short-circuit test circuit of the vehicle test bench wiring harness, which can contain multiple levels of fuses and / or contain multiple fuses of the same level. One or more cameras can be used to obtain dynamic image data of multiple fuses to be tested in the short-circuit test circuit and the short-circuit test process.

[0046] S104. Automatically generate a test report of the vehicle bench wiring harness short-circuit test according to the judgment result.

[0047] In this embodiment, a corresponding test report can be automatically generated based on the comparison and calculation results of the above data, wherein the test report may include information such as the test date and time and whether the fuse to be tested passes the test.

[0048] The embodiment of the present invention provides a vehicle bench wire harness short-circuit test method, which obtains the current data, voltage data and temperature data of the short-circuit test circuit during the vehicle bench wire harness short-circuit test, wherein the voltage data includes the voltage data of the battery in the short-circuit test circuit obtained by the voltage sensor, and the temperature data includes the temperature data of the distribution box and the load in the short-circuit test circuit obtained by the temperature sensor, and obtains the video data during the vehicle bench wire harness short-circuit test, wherein the video data includes the video image of the vehicle bench wire harness short-circuit test obtained by the camera, and analyzes the current data, voltage data, temperature data and video data, and judges whether the fuse to be tested in the short-circuit test circuit meets the preset requirements according to the analysis results, and automatically generates a test report for the vehicle bench wire harness short-circuit test according to the judgment results. The technical solution of the embodiment of the present invention can judge whether the fuse to be tested meets the preset requirements by collecting and analyzing the current data, voltage data, temperature data and video data of the short-circuit test circuit, and generate a complete test report, which is applicable to a variety of vehicle test scenarios, standardizes the operation process of vehicle test, and improves the work efficiency of vehicle short-circuit test.

[0049] Embodiment 2

[0050] Figure 2 A flow chart of a vehicle test bench wiring harness short-circuit test method provided in the second embodiment of the present invention. The technical solution of the embodiment of the present invention is further optimized on the basis of the above-mentioned optional technical solutions, and a specific method for vehicle test bench wiring harness short-circuit test is given.

[0051] Optionally, the current data, voltage data and temperature data of the short-circuit test circuit during the short-circuit test of the whole vehicle test bench harness are obtained, including: during the short-circuit test of the whole vehicle test bench harness, the original analog signal corresponding to the short-circuit test circuit collected by the current sensor, voltage sensor and temperature sensor is uploaded to the signal acquisition software through the digital acquisition instrument; the original analog signal is converted into a digital signal through the signal acquisition software; the data corresponding to the digital signal is obtained as the current data, voltage data and temperature data of the short-circuit test circuit. The advantage of this setting is that the data of each test can be uniformly stored and managed, the test process can be standardized, and it is convenient to trace the test data and test results in the future.

[0052] Optionally, analyze the current data, voltage data, temperature data and video data, and judge whether the fuse to be tested of the whole vehicle bench wire harness meets the preset requirements according to the analysis results, including: judging whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirements according to the analysis results of the current data; judging whether the voltage of the battery in the short-circuit test circuit is lower than the preset voltage value according to the analysis results of the voltage data; judging whether the temperature of the distribution box and the load in the short-circuit test circuit exceeds the preset temperature value according to the analysis results of the temperature data; judging whether the order in which the multiple fuses to be tested are disconnected meets the preset order requirements and whether the bench wire harness is damaged during the short-circuit test of the whole vehicle bench wire harness according to the analysis results of the video data. The advantage of this arrangement is that the short-circuit test of the whole vehicle bench wire harness is performed from multiple angles and in all directions, which improves the accuracy and work efficiency of the short-circuit test.

[0053] Optionally, the method of automatically generating a test report for the short-circuit test of the whole vehicle test bench wiring harness according to the judgment result includes: associating the judgment result and the test process data with the attribute information of the fuse to be tested, so as to automatically generate a test report for the short-circuit test of the whole vehicle test bench wiring harness; wherein, the judgment result includes whether the corresponding fuse to be tested passes the test, the test process data includes the temperature of the distribution box and the load, the test time, the average short-circuit current and the peak short-circuit current, the attribute information of the fuse includes the fuse type and the installation position, and the temperature of the distribution box and the load includes the temperature at the start of the test, the maximum test temperature and the temperature rise. The advantage of this setting is that it avoids the human errors that may be caused when manually filling out the report, and improves the accuracy and efficiency of the test report.

[0054] like Figure 2 As shown, a vehicle test bench wiring harness short circuit test method provided by the second embodiment of the present invention specifically includes the following steps:

[0055] S201. During the short-circuit test of the wiring harness on the vehicle test bench, the original analog signal corresponding to the short-circuit test circuit collected by the current sensor, voltage sensor and temperature sensor is uploaded to the signal acquisition software through the digital data acquisition instrument; the original analog signal is converted into a digital signal through the signal acquisition software; and the data corresponding to the digital signal is obtained as the current data, voltage data and temperature data of the short-circuit test circuit.

[0056] Specifically, after the current sensor, voltage sensor and temperature sensor collect physical signals, they usually convert the physical signals into voltage analog signals and then output them. Then, using a digital data acquisition instrument, the voltage analog signals of the above-mentioned multi-channel sensors are integrated and encoded, and uploaded to the signal acquisition software. The signal acquisition software then parses the integrated voltage analog signal into multiple signals and decodes them into digital signals respectively, thereby ensuring that the data collected by the sensor can be stored in a cloud platform or computer, etc., for future tracing of the test data, and also preparing for the subsequent analysis of the test data and obtaining the test results.

[0057] S202, obtaining video data during the vehicle test bench wiring harness short-circuit test.

[0058] Among them, the video data includes video images obtained by the camera during the short-circuit test of the vehicle bench wiring harness.

[0059] It should be noted that step S202 has been explained in the first embodiment of the present invention and will not be described in detail here.

[0060] S203: Determine whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirement according to the analysis result of the current data.

[0061] Specifically, the preset current value requirement may be a requirement for a maximum short-circuit current passing through the fuse to be tested and a requirement for a fuse blowing time, etc. The specific requirements may be set by testers and other relevant staff of the automobile manufacturer.

[0062] Furthermore, judging whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirement is based on the analysis result of the current data, including: according to the current data, obtaining the slope of each current data to form a point set of time and slope, wherein the current data includes the current value and the time corresponding to the current value; according to the point set of time and slope, obtaining the maximum and minimum values ​​of the slope, and obtaining the short-circuit start time and the short-circuit end time, wherein the maximum value of the slope corresponds to the short-circuit start time, and the minimum value of the slope corresponds to the short-circuit end time; according to the time data, obtaining the integral of the short-circuit period to obtain the average value of the short-circuit current; judging whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirement based on the average value of the short-circuit current, the short-circuit start time and the short-circuit end time.

[0063] For example, a current-time point set (t i ,I i ), find the slope ki of each point, where i = 0, 1, 2, ..., n, ki = (I i+1 -I i ) / (t i+1 -t i), thus forming a set of points of time and slope (t i , ki); Figure 3 is a graph of the current-time relationship for a short-circuit test of a vehicle bench wiring harness. As Figure 3 shown, since the current value during a short circuit is much greater than the current value when there is no short circuit, the time corresponding to the maximum value of the slope in the set of slope points can be understood as the short-circuit start time Tstart, and the time corresponding to the minimum value of the slope in the set of slope points can be understood as the short-circuit end time Tend; according to the set of current-time points (t j , I j ) in the short-circuit time period in the collected current data, the average value Iave of the short-circuit current during the short-circuit time period can be obtained by using the integration method, where Iave = Isum / (Tend - Tstart), Finally, based on the average value Iave of the current, the short-circuit start time Tstart, and the short-circuit end time Tend, it can be determined whether the fuse under test meets the preset current value requirement.

[0064] Further, based on the average value of the short-circuit current, the short-circuit start time, and the short-circuit end time, it is determined whether the fuse under test in the short-circuit test circuit meets the preset current value requirement, including: determining whether the average value of the short-circuit current is greater than the product of the rated current value of the fuse under test and the preset ratio value; if not, the fuse under test does not meet the preset current value requirement; determining whether the fuse under test disconnects within a preset time period based on the short-circuit start time and the short-circuit end time; if not, the fuse under test does not meet the preset current value requirement.

[0065] Exemplarily, the preset ratio can be set to 135, then compare the average value Iave of the short-circuit current with the value I1 of 135% of the rated current of the fuse under test. If Iave < I1, then the fuse under test does not meet the preset current value requirement. If Iave > I1, then based on the difference between the short-circuit start time Tstart and the short-circuit end time Tend, it is determined whether the fuse under test disconnects within 30 seconds. The preset time period can be set to 30 seconds. If the fuse under test disconnects within 30 seconds, the fuse under test meets the preset current value requirement. If the fuse under test does not disconnect within 30 seconds, the fuse under test does not meet the preset current value requirement.

[0066] S204. Determine whether the voltage of the battery in the short-circuit test circuit is lower than the preset voltage value according to the analysis result of the voltage data.

[0067] Specifically, the normal voltage of the battery is usually 12.5 volts. When the number of fuses to be tested is large, the battery will be continuously short-circuited and discharged, which may cause the battery voltage to decrease. Therefore, it is necessary to determine whether the battery voltage is lower than a preset voltage value, such as 12 volts, based on the voltage data. If the battery voltage is lower than the preset voltage value, a prompt message is output, and the prompt message is used to instruct the battery to be charged or replaced.

[0068] S205. Determine whether the temperature of the distribution box and the load in the short-circuit test circuit exceeds a preset temperature value based on the analysis result of the temperature data.

[0069] Specifically, based on the temperature data during the short-circuit test of the vehicle bench wiring harness, the temperature changes of the distribution box and the load can be observed. The distribution box contains the fuse to be tested. If the temperature of the distribution box and the load exceeds the preset temperature value, such as the maximum tolerable temperature of the load and the distribution charge, etc., the fuse to be tested does not meet the preset requirements.

[0070] S206. Determine, based on the analysis result of the video data, whether the order in which the multiple fuses to be tested are disconnected meets the preset order requirement and whether the test bench wiring harness is damaged during the short-circuit test of the vehicle test bench wiring harness.

[0071] Specifically, when there are multiple fuses to be tested in the short-circuit test circuit of the vehicle test bench wiring harness, the video data collected by the camera can be used to determine whether the order in which the multiple fuses to be tested are disconnected meets the preset sequence requirements. If not, the fuses to be tested do not meet the preset requirements, where the preset sequence requirements may be that the higher-level fuse is disconnected before the lower-level fuse or that the fuses of the same level are disconnected at the same time; the video data collected by the camera can also be used to determine whether the test bench wiring harness is damaged during the short-circuit test, such as burning. If damaged, the fuses to be tested do not meet the preset requirements.

[0072] S207, associating the judgment result and the test process data with the property information of the fuse to be tested, so as to automatically generate a test report for the vehicle bench wire harness short circuit test.

[0073] Among them, the judgment result includes whether the corresponding fuse to be tested passes the test, the test process data includes the temperature of the distribution box and the load, the test time, the average short-circuit current and the peak short-circuit current, the test process data may also include video data, such as the above-mentioned temperature distribution image, etc. The attribute information of the fuse includes the fuse type and installation location, the temperature of the distribution box and the load includes the temperature at the beginning of the test, the highest test temperature and the temperature rise.

[0074] For example, Figure 4This is a schematic diagram of a test report for a short-circuit test of a whole vehicle bench wiring harness. As shown in the figure, the test report for the short-circuit test of the whole vehicle bench wiring harness can record: fuse type, installation position, temperature of the distribution box and load, test time, average short-circuit current, peak short-circuit current, temperature of the distribution box and load including the temperature at the start of the test, the highest test temperature, temperature rise, and whether the fuse to be tested passes the test and other information.

[0075] The vehicle test bench wiring harness short-circuit test method provided by the embodiment of the present invention collects and analyzes the current data, voltage data, temperature data and video data of the short-circuit test circuit, comprehensively determines whether the fuse to be tested in the vehicle test bench wiring harness has safety hazards, and generates a complete test report based on the test data. It can quickly and accurately analyze whether the vehicle wiring harness short-circuit is safe, is suitable for a variety of vehicle testing scenarios, standardizes the operating procedures of the vehicle test, and improves the work efficiency of the vehicle short-circuit test.

[0076] Based on the above embodiment, the method may further include: during the vehicle test bench wiring harness short-circuit test, the battery, load, switch and distribution box in the short-circuit test circuit are in a series connection state.

[0077] For example, Figure 5 The following is a schematic diagram of a short-circuit test circuit for a vehicle test bench wiring harness. Figure 5 As shown, professional tools can be used to remove the terminals corresponding to the positive and negative poles of the distribution box in the controller where the fuse to be tested is located, and connect them in series with the battery, load and switch with a conductive wire. Then, a voltage sensor is connected to the battery side to obtain the voltage data of the battery, a temperature sensor is connected to the load and the distribution box side to obtain the temperature data of the distribution box and the load, and a current sensor is connected to the distribution box side to obtain the current data flowing through the fuse. When a short-circuit test is performed on the vehicle bench wiring harness, in order to simulate the power supply condition of the vehicle as much as possible, a battery needs to be connected in series in the short-circuit test circuit to power the short-circuit test circuit; the load can be an adjustable load box.

[0078] Embodiment 3

[0079] Figure 6 This is a schematic diagram of the structure of a vehicle bench wire harness short circuit test device provided by the third embodiment of the present invention. Figure 6 As shown, the device includes: a data acquisition module 301, a video data acquisition module 302, a fuse judgment module 303 and a test report generation module 304, wherein:

[0080] A data acquisition module, used to acquire current data, voltage data and temperature data of a short-circuit test circuit during a short-circuit test of a vehicle test bench harness, wherein the voltage data includes voltage data of a battery in the short-circuit test circuit acquired by a voltage sensor, and the temperature data includes temperature data of a distribution box and a load in the short-circuit test circuit acquired by a temperature sensor, wherein the distribution box includes the fuse to be tested;

[0081] A video data acquisition module, used to acquire video data during the short-circuit test of the whole vehicle test bench wire harness, wherein the video data includes a video image of the whole vehicle test bench wire harness short-circuit test acquired by a camera;

[0082] A fuse judgment module is used to analyze current data, voltage data, temperature data and video data, and judge whether the fuse to be tested in the short-circuit test circuit meets the preset requirements according to the analysis results;

[0083] The test report generation module is used to automatically generate a test report for the vehicle bench wiring harness short-circuit test based on the judgment result.

[0084] The vehicle bench wire harness short-circuit test device provided in the embodiment of the present invention can determine whether the fuse to be tested meets the preset requirements and generate a complete test report by collecting and analyzing the current data, voltage data, temperature data and video data of the short-circuit test circuit. It is suitable for a variety of vehicle testing scenarios, standardizes the operating procedures of the vehicle testing, and improves the work efficiency of the vehicle short-circuit testing.

[0085] Furthermore, there are multiple fuses to be tested, and the video data includes dynamic image data of the multiple fuses to be tested and the test bench wire harness during the short-circuit test of the whole vehicle test bench wire harness.

[0086] Optionally, the data acquisition module includes:

[0087] The signal uploading unit is used to upload the original analog signal corresponding to the short-circuit test circuit collected by the current sensor, voltage sensor and temperature sensor to the signal acquisition software through the digital acquisition instrument during the short-circuit test of the whole vehicle test bench wire harness;

[0088] A signal conversion unit, used to convert the original analog signal into a digital signal through signal acquisition software;

[0089] The digital signal acquisition unit is used to acquire data corresponding to the digital signal as current data, voltage data and temperature data of the short-circuit test circuit.

[0090] Optionally, the fuse judgment module includes:

[0091] A current judgment unit, used to judge whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirement according to the analysis result of the current data;

[0092] A voltage judgment unit, used to judge whether the voltage of the battery in the short-circuit test circuit is lower than a preset voltage value according to the analysis result of the voltage data;

[0093] A temperature judgment unit, used to judge whether the temperature of the distribution box and the load in the short-circuit test circuit exceeds a preset temperature value according to the analysis result of the temperature data;

[0094] The fuse judgment unit is used to judge whether the order in which multiple fuses to be tested are disconnected meets the preset order requirements and whether the test bench wire harness is damaged during the short-circuit test of the whole vehicle test bench wire harness according to the analysis results of the video data.

[0095] Furthermore, judging whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirement is based on the analysis result of the current data, including: according to the current data, obtaining the slope of each current data to form a point set of time and slope, wherein the current data includes the current value and the time corresponding to the current value; according to the point set of time and slope, obtaining the maximum and minimum values ​​of the slope, and obtaining the short-circuit start time and the short-circuit end time, wherein the maximum value of the slope corresponds to the short-circuit start time, and the minimum value of the slope corresponds to the short-circuit end time; according to the time data, obtaining the integral of the short-circuit period to obtain the average value of the short-circuit current; judging whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirement based on the average value of the short-circuit current, the short-circuit start time and the short-circuit end time.

[0096] Furthermore, judging whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirement is performed based on the average value of the short-circuit current, the short-circuit start time and the short-circuit end time, including: judging whether the average value of the short-circuit current is greater than the product of the rated current value of the fuse to be tested and a preset ratio value; if not, the fuse to be tested does not meet the preset current value requirement; judging whether the fuse to be tested is disconnected within a preset time period based on the short-circuit start time and the short-circuit end time; if not, the fuse to be tested does not meet the preset current value requirement.

[0097] Optionally, a test report generation module is specifically used to associate the judgment result and test process data with the attribute information of the fuse to be tested, so as to automatically generate a test report for the short-circuit test of the vehicle test bench wiring harness; wherein the judgment result includes whether the corresponding fuse to be tested passes the test, the test process data includes the temperature of the distribution box and the load, the test time, the average short-circuit current and the peak short-circuit current, the attribute information of the fuse includes the fuse type and the installation location, and the temperature of the distribution box and the load includes the temperature at the start of the test, the maximum test temperature and the temperature rise.

[0098] Optionally, during the vehicle bench wiring harness short-circuit test, the battery, load, switch and distribution box in the short-circuit test circuit are connected in series.

[0099] The vehicle test bench wire harness short-circuit testing device provided in the embodiment of the present invention can execute the vehicle test bench wire harness short-circuit testing method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0100] Embodiment 4

[0101] Figure 7 A schematic diagram of the structure of an electronic device 40 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) 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 and / or required herein.

[0102] like Figure 7 As shown, the electronic device 40 includes at least one processor 41, and a memory connected to the at least one processor 41, such as a read-only memory (ROM) 42, a random access memory (RAM) 43, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 41 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 42 or the computer program loaded from the storage unit 48 to the random access memory (RAM) 43. In the RAM 43, various programs and data required for the operation of the electronic device 40 can also be stored. The processor 41, the ROM 42, and the RAM 43 are connected to each other through a bus 44. An input / output (I / O) interface 45 is also connected to the bus 44.

[0103] A number of components in the electronic device 40 are connected to the I / O interface 45, including: an input unit 46, such as a keyboard, a mouse, etc.; an output unit 47, such as various types of displays, speakers, etc.; a storage unit 48, such as a disk, an optical disk, etc.; and a communication unit 49, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 49 allows the electronic device 40 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0104] The processor 41 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 41 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The processor 41 executes the various methods and processes described above, such as the vehicle bench wiring harness short circuit test method.

[0105] In some embodiments, the vehicle bench wire harness short circuit test method can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 48. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 40 via the ROM 42 and / or the communication unit 49. When the computer program is loaded into the RAM 43 and executed by the processor 41, one or more steps of the vehicle bench wire harness short circuit test method described above can be performed. Alternatively, in other embodiments, the processor 41 can be configured to execute the vehicle bench wire harness short circuit test method in any other appropriate manner (for example, by means of firmware).

[0106] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations may include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0107] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0108] The computer device provided above can be used to execute the vehicle bench wiring harness short-circuit test method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

[0109] Embodiment 5

[0110] In the context of the present invention, a computer-readable storage medium may be a tangible medium, and when the computer-executable instructions are executed by a computer processor, the computer-executable instructions are used to perform a vehicle bench wiring harness short circuit test method, the method comprising:

[0111] Acquire current data, voltage data and temperature data of the short-circuit test circuit during the short-circuit test of the vehicle test bench wiring harness, wherein the voltage data includes voltage data of the battery in the short-circuit test circuit acquired by a voltage sensor, and the temperature data includes temperature data of the distribution box and the load in the short-circuit test circuit acquired by a temperature sensor, wherein the distribution box includes the fuse to be tested;

[0112] Acquire video data during the short-circuit test of the whole vehicle test bench wire harness, wherein the video data includes a video image acquired by a camera during the short-circuit test of the whole vehicle test bench wire harness;

[0113] Analyze the current data, voltage data, temperature data and video data, and determine whether the fuse to be tested in the short-circuit test circuit meets preset requirements according to the analysis results;

[0114] A test report of the vehicle test bench wiring harness short-circuit test is automatically generated according to the judgment result.

[0115] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by an instruction execution system, device or equipment or used with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer 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 foregoing.

[0116] The computer device provided above can be used to execute the vehicle bench wiring harness short-circuit test method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

[0117] It is worth noting that in the above-mentioned embodiment of the vehicle test bench wiring harness short-circuit test device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0118] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A vehicle bench wire harness short circuit test method, characterized in that: include: Acquire current data, voltage data and temperature data of the short-circuit test circuit during the short-circuit test of the vehicle bench wire harness, wherein the voltage data includes voltage data of the battery in the short-circuit test circuit acquired by a voltage sensor, and the temperature data includes temperature data of the distribution box and the load in the short-circuit test circuit acquired by a temperature sensor, wherein the distribution box includes a fuse to be tested; Acquire video data during the short-circuit test of the whole vehicle test bench wire harness, wherein the video data includes a video image of the whole vehicle test bench wire harness short-circuit test acquired by a camera, the camera includes a thermal camera, and the video image includes a temperature distribution image of components and wires in the short-circuit test circuit; Analyzing the current data, voltage data, temperature data and video data, and judging whether the fuse to be tested in the short-circuit test circuit meets the preset requirements according to the analysis results, including: judging whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirements according to the analysis results of the current data; Automatically generate a test report of the vehicle test bench wire harness short circuit test according to the judgment result; Wherein, judging whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirement according to the analysis result of the current data includes: According to the current data, the slope of each current data is obtained to form a point set of time and slope, wherein the current data includes a current value and a time corresponding to the current value; According to the point set of the time and the slope, the maximum value and the minimum value of the slope are obtained, and the short circuit start time and the short circuit end time are obtained, wherein the maximum value of the slope corresponds to the short circuit start time, and the minimum value of the slope corresponds to the short circuit end time; According to the current data, an integral of the short-circuit period is calculated to obtain an average value of the short-circuit current; Determine whether the average value of the short-circuit current is greater than the product of the rated current value of the fuse to be tested and the preset ratio value; if not, the fuse to be tested does not meet the preset current value requirement; It is determined whether the fuse to be tested is disconnected within a preset time period according to the short circuit start time and the short circuit end time. If not, the fuse to be tested does not meet the preset current value requirement.

2. The method according to claim 1, characterized in that During the vehicle bench wiring harness short-circuit test, the battery, load, switch and distribution box in the short-circuit test circuit are in a series connection state.

3. The method according to claim 1, characterized in that The method of obtaining the current data, voltage data and temperature data of the short-circuit test circuit during the short-circuit test of the whole vehicle test bench wire harness includes: During the short-circuit test of the electrical harness on the vehicle bench, the original analog signals corresponding to the short-circuit test circuit collected by the current sensor, the voltage sensor and the temperature sensor are uploaded to the signal acquisition software through the digital acquisition instrument; Converting the original analog signal into a digital signal by the signal acquisition software; Data corresponding to the digital signal is acquired as current data, voltage data, and temperature data of the short-circuit test circuit.

4. The method according to claim 1, characterized in that: There are multiple fuses to be tested, and the video data includes dynamic image data of multiple fuses to be tested and test bench wire harnesses during the short-circuit test of the whole vehicle test bench wire harness; The analyzing of the current data, voltage data, temperature data and video data, and judging whether the fuse to be tested of the vehicle test bench wire harness meets the preset requirements according to the analysis results, includes: Determining whether the voltage of the storage battery in the short-circuit test circuit is lower than a preset voltage value according to the analysis result of the voltage data; Determine whether the temperature of the distribution box and the load in the short-circuit test circuit exceeds a preset temperature value according to the analysis result of the temperature data; It is determined based on the analysis result of the video data whether the order in which the multiple fuses to be tested are disconnected meets the preset order requirements and whether the test bench wiring harness is damaged during the short-circuit test of the whole vehicle test bench wiring harness.

5. The method according to claim 1, characterized in that The test report of the vehicle test bench wire harness short circuit test is automatically generated according to the judgment result, including: The judgment result and the test process data are associated with the attribute information of the fuse to be tested to automatically generate a test report for the short-circuit test of the whole vehicle test bench wiring harness; wherein the judgment result includes whether the corresponding fuse to be tested passes the test, the test process data includes the temperature of the distribution box and the load, the test time, the average short-circuit current and the peak short-circuit current, the attribute information of the fuse includes the fuse type and the installation position, and the temperature of the distribution box and the load includes the temperature at the start of the test, the maximum test temperature and the temperature rise.

6. A vehicle bench wire harness short circuit test device, characterized in that: include: A data acquisition module, used to acquire current data, voltage data and temperature data of a short-circuit test circuit during a short-circuit test of a vehicle test bench harness, wherein the voltage data includes voltage data of a battery in the short-circuit test circuit acquired by a voltage sensor, and the temperature data includes temperature data of a distribution box and a load in the short-circuit test circuit acquired by a temperature sensor, wherein the distribution box includes a fuse to be tested; A video data acquisition module, used to acquire video data during the short-circuit test of the whole vehicle test bench wire harness, wherein the video data includes a video image of the whole vehicle test bench wire harness short-circuit test acquired by a camera, the camera includes a thermal camera, and the video image includes a temperature distribution image of components and wires in the short-circuit test circuit; A fuse judgment module is used to analyze the current data, voltage data, temperature data and video data, and judge whether the fuse to be tested in the short-circuit test circuit meets the preset requirements according to the analysis results; A test report generation module, used for automatically generating a test report of the vehicle test bench wire harness short circuit test according to the judgment result; Wherein, the fuse judgment module includes: A current judgment unit, used to judge whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirement according to the analysis result of the current data; Wherein, judging whether the fuse to be tested in the short-circuit test circuit meets the preset current value requirement according to the analysis result of the current data includes: According to the current data, the slope of each current data is obtained to form a point set of time and slope, wherein the current data includes a current value and a time corresponding to the current value; According to the point set of the time and the slope, the maximum value and the minimum value of the slope are obtained, and the short circuit start time and the short circuit end time are obtained, wherein the maximum value of the slope corresponds to the short circuit start time, and the minimum value of the slope corresponds to the short circuit end time; According to the current data, an integral of the short-circuit period is calculated to obtain an average value of the short-circuit current; Determine whether the average value of the short-circuit current is greater than the product of the rated current value of the fuse to be tested and the preset ratio value; if not, the fuse to be tested does not meet the preset current value requirement; It is determined whether the fuse to be tested is disconnected within a preset time period according to the short circuit start time and the short circuit end time. If not, the fuse to be tested does not meet the preset current value requirement.

7. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the vehicle bench wiring harness short-circuit test method according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the vehicle bench wiring harness short-circuit test method according to any one of claims 1 to 5 when executed.

Images