Test system of intelligent power distribution controller

Abstract

The utility model provides a test system of an intelligent power distribution controller. The system comprises an environment chamber used for providing a stable preset environment temperature for a target intelligent power distribution controller, and a programmable power supply used for providing a stable preset voltage and a fault voltage for the target intelligent power distribution controller; the bus tool is used for simulating a control instruction signal of a preset power distribution loop, so that the target intelligent power distribution controller works normally according to the control instruction signal; the receiving module is used for receiving a working state signal or a fault state signal fed back by the target intelligent power distribution controller; the electronic load is used for providing stable preset current for the preset power distribution loop and providing fault current for the fault power distribution loop according to the test instruction; and the data acquisition instrument is used for feeding back the acquired normal parameter data generated by the preset power distribution loop and the fault parameter data generated by the fault power distribution loop to the upper computer, so that the upper computer can test the loop protection performance of the target intelligent power distribution controller by using the data, and the test efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of computers, in particular to a test system for an intelligent power distribution controller. Background Art

[0002] As the technology of intelligent power distribution controllers matures, more and more intelligent power distribution controllers are used in mass-produced new energy vehicles to control the distribution and use of low-voltage system power. Whether the on-board intelligent power distribution controller can be optimized and run stably is crucial to the performance and reliability of the vehicle. Therefore, it is necessary to effectively test the intelligent power distribution controller to ensure the circuit protection performance of the intelligent power distribution controller.

[0003] At present, the harness protection test for intelligent power distribution controllers is usually a verification at the functional logic level, that is, by creating short circuits and other faults to verify the on-off status of the corresponding circuits, and confirm whether it is consistent with the design end. In addition, the current test conditions are more about short-circuiting the signal line to the power / ground through the board control signal line, and the overcurrent situation still relies on manual operation of the electronic load for testing. However, since the test of intelligent power distribution controllers usually involves multiple rounds of software and hardware version updates and iterations, if the existing manual or semi-automatic test methods are still used for testing, the test progress will be slow and the test efficiency will be reduced. In addition, the existing short-circuit test method does not achieve true automatic short-circuiting of the power circuit, and the existing insurance overcurrent test cannot cover the verification range of the intelligent power distribution insurance, which reduces the accuracy of the test.

[0004] Therefore, how to improve the testing efficiency and accuracy of intelligent power distribution controllers is a technical problem that needs to be solved urgently. Utility Model Content

[0005] In view of this, the main purpose of the present invention is to provide a test system for an intelligent power distribution controller, which can realize automated testing of the intelligent power distribution controller more quickly and accurately.

[0006] The embodiment of the utility model provides a test system for an intelligent power distribution controller, characterized in that the system comprises: an environmental chamber, a programmable power supply, an electronic load, a bus tool, a data acquisition instrument, and a host computer; the target intelligent power distribution controller to be tested is placed in the environmental chamber;

[0007] The environmental chamber is used to provide a stable preset ambient temperature for the target intelligent power distribution controller;

[0008] The program-controlled power supply is used to provide a stable preset voltage and a fault voltage for the target intelligent power distribution controller and the data acquisition instrument;

[0009] The bus tool is used to simulate the control instruction signals of a preset power distribution circuit to ensure that the target intelligent power distribution controller in the preset power distribution circuit receives accurate control instruction signals and operates normally; and it is also used to receive the working status signals or fault status signals fed back by the target intelligent power distribution controller.

[0010] The electronic load is used to provide a stable preset current for the preset power distribution circuit to ensure the normal operation of the preset power distribution circuit.

[0011] The electronic load is also used to receive the test instructions from the host computer and provide a fault current for the faulty power distribution circuit according to the test instructions.

[0012] The data acquisition instrument is used to collect and record the normal parameter data generated by the preset power distribution circuit and the fault parameter data generated by the faulty power distribution circuit, and feed back the collected normal parameter data and fault parameter data to the host computer, so that the host computer can use the normal parameter data and fault parameter data to test the loop protection performance of the target intelligent power distribution controller and obtain the test results.

[0013] In a possible implementation, the host computer includes an automation control software; the automation control software includes a general automation test software TAE, a vehicle bus monitoring analysis and simulation tool VBA, and a test resource management software TCS.

[0014] In a possible implementation, the test resource management software TCS is used to realize the control and call of the environmental chamber, the programmable power supply, the electronic load, the bus tool, and the data acquisition instrument.

[0015] The automation test software TAE is used to associate and call the variable instructions in the test resource management software TCS to build a test sequence according to the variable instructions and generate a test report after automatically executing the test sequence.

[0016] The vehicle bus monitoring analysis and simulation tool VBA is used to collect parameter data and simulate and send bus signals, and send the parameter data to the automation test software TAE to facilitate the test resource management software TAE to generate a test report.

[0017] In a possible implementation, the temperature range to which the preset environmental temperature belongs is from -40°C to 100°C.

[0018] In a possible implementation, the preset voltage and preset current are 13.5V and 10A respectively.

[0019] In a possible implementation, the faulty power distribution circuit is a short-circuit or overcurrent fault circuit.

[0020] In a possible implementation, the overcurrent modes of the overcurrent fault loop include at least one of the rated current of the load, the rated current of the fuse, 135% of the fuse current, and 200% of the fuse current.

[0021] In a possible implementation, the normal parameter data includes a normal voltage signal, a normal current signal, and a normal temperature signal; the fault parameter data includes a fault voltage signal, a fault current signal, and a fault temperature signal.

[0022] In a possible implementation, after testing the loop protection performance of the target intelligent power distribution controller to obtain a test result, the system further includes:

[0023] The upper computer is used to evaluate the test result in combination with the IT protection curve corresponding to the faulty power distribution loop to obtain an evaluation result.

[0024] In a possible implementation, the system further includes:

[0025] The upper computer is used to automatically generate a test report for the target intelligent power distribution controller according to the evaluation result.

[0026] A test system for an intelligent power distribution controller provided by an embodiment of the present invention includes an environmental chamber, a programmable power supply, an electronic load, a bus tool, a data acquisition instrument, and an upper computer. The target intelligent power distribution controller to be tested is placed in the environmental chamber. Among them, the environmental chamber is used to provide a stable preset environmental temperature for the target intelligent power distribution controller. The programmable power supply is used to provide a stable preset voltage and a fault voltage (such as overvoltage / undervoltage, etc.) for the target intelligent power distribution controller and the data acquisition instrument. The bus tool is used to simulate the control instruction signal of the preset power distribution loop to ensure that the target intelligent power distribution controller in the preset power distribution loop receives an accurate control instruction signal and works normally. And it is also used to receive the working state signal or the fault state signal fed back by the target intelligent power distribution controller. The electronic load is used to provide a stable preset current for the preset power distribution loop to ensure the normal operation of the preset power distribution loop. It is also used to receive the test instruction from the upper computer and provide a fault current for the faulty power distribution loop according to the test instruction. The data acquisition instrument is used to collect and record the normal parameter data generated by the preset power distribution loop and the fault parameter data generated by the faulty power distribution loop, and feed the collected normal parameter data and fault parameter data back to the upper computer, so that the upper computer can use the normal parameter data and the fault parameter data to test the loop protection performance of the target intelligent power distribution controller to obtain a test result.

[0027] It can be seen that for the test system adopted in the embodiment of the present utility model, after placing the intelligent power distribution controller to be tested into the environmental chamber of the system, the environmental temperature can be automatically controlled by the environmental chamber of the system, and the coordinated actions of the programmable power supply, electronic load, bus tool, data collector, and upper computer of the system can be utilized to achieve the automated operation of the entire link of test execution and test result analysis, greatly improving the test efficiency. Moreover, in the test process of the present utility model, various easily overlooked fault currents are added through the electronic load, thereby more comprehensively verifying the loop protection performance of the intelligent power distribution controller and improving the test accuracy of the intelligent power distribution controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to clearly illustrate the specific implementation manner of the embodiment of the present utility model, the drawings used in the description of the specific implementation manner will be briefly described below. Obviously, these drawings are only a part of the drawings of the embodiment of the present utility model, and those of ordinary skill in the art can obtain other drawings without creative efforts.

[0029] Figure 1 is a structural block diagram of the test system for the intelligent power distribution controller provided by the embodiment of the present utility model;

[0030] Figure 2 is an overall process diagram of the test for the intelligent power distribution controller provided by the embodiment of the present utility model;

[0031] Figure 3 is a schematic diagram of the corresponding relationship between the loop current and the fusing time provided by the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] To facilitate the understanding of the technical solution provided by the present utility model, the research background of the technical solution of the present utility model will be briefly described below.

[0033] With the gradual maturity of the technology of intelligent power distribution controllers, more and more intelligent power distribution controllers are being applied to mass-produced vehicles. Currently, the harness protection test for intelligent power distribution controllers is more focused on the verification of the functional logic level, that is, by creating faults such as short circuits to verify the on / off status of the corresponding loops and confirm whether it is consistent with the design end. In addition, currently, the test conditions are mainly short-circuit tests of the signal line to power / ground controlled by a board card, and the over-current situation still basically relies on manually operating the electronic load for testing, unable to achieve automated testing, let alone automated analysis and report generation.

[0034] Moreover, during the testing process of the intelligent power distribution controller, there are often multiple rounds of software and hardware version updates and iterations. If the existing manual or semi-automatic testing methods are still used for testing, it will lead to slow testing progress and low testing efficiency. Moreover, as the number of different currents to be verified increases, it will not only result in an increase in the test volume, but also a sharp increase in the amount of data to be processed. This will pose great challenges to both the testers and the overall testing progress. In addition, the existing short-circuit testing does not achieve true automatic short-circuit of the power loop, and currently, the fuse overcurrent testing only conducts 135% and 200% overcurrent tests, which can no longer cover the verification range of the intelligent power distribution fuse, reducing the testing accuracy. Moreover, at present, a complete test evaluation system for the harness protection testing of the intelligent power distribution controller has not been formed.

[0035] Based on this, in order to solve the problems of low testing efficiency and low accuracy for the intelligent power distribution controller at present, the present utility model proposes a testing system for the intelligent power distribution controller, so as to be able to more quickly and accurately achieve the automated testing of the intelligent power distribution controller.

[0036] In order to make the technical solution of the present utility model clearer and easier to understand, the following will specifically describe the specific implementation manners of the present utility model with reference to the accompanying drawings.

[0037] See Figure 1 , which is a structural block diagram of a testing system for the intelligent power distribution controller provided in this embodiment. As Figure 1As shown in the figure, the system includes: an environmental chamber 101, a programmable power supply 102, an electronic load 103, a bus tool 104, a data acquisition instrument 105, and a host computer 106. The intelligent power distribution controller to be tested (hereinafter defined as the target intelligent power distribution controller) is placed in the environmental chamber 101. Among them, the environmental chamber 101 is used to provide a stable preset environmental temperature for the target intelligent power distribution controller; the programmable power supply 102 is used to provide a stable preset voltage and fault voltage (such as overvoltage / undervoltage, etc.) for the target intelligent power distribution controller and the data acquisition instrument 105; the bus tool 104 is used to simulate the control instruction signals of a preset power distribution loop (referring to a preset normal working circuit, and the specific loop type is not limited), such as the instruction to turn on the in-vehicle light pin, etc., to ensure that the target intelligent power distribution controller in the preset power distribution loop receives accurate control instruction signals and works properly; and it is also used to receive the working status signal or fault status signal fed back by the target intelligent power distribution controller; the electronic load 103 is used to provide a stable preset current for the preset power distribution loop to ensure the normal operation of the preset power distribution loop, and it is also used to receive the test instruction from the host computer 106 and provide a fault current for the faulty power distribution loop according to this test instruction; thus, after the data acquisition instrument 105 collects and records the normal parameter data generated by the preset power distribution loop and the fault parameter data generated by the faulty power distribution loop, the collected normal parameter data and fault parameter data can be fed back to the host computer 106, so that the host computer 106 can use the normal parameter data and fault parameter data to test the loop protection performance of the target intelligent power distribution controller and obtain the test result.

[0038] In a possible implementation manner of this embodiment, the specific process of using Figure 1 the shown test system to test the target intelligent power distribution controller may include the following steps (1)-(6):

[0039] Step (1): Use the environmental chamber 101 and the host computer 106 to provide a stable preset environmental temperature for the target intelligent power distribution controller.

[0040] In this implementation manner, when using Figure 1 the shown test system to test the target intelligent power distribution controller, in order to test whether it can make a correct response normally when the loop has faults such as short circuit and overcurrent under different temperature conditions (that is, to test the performance of the target intelligent power distribution controller such as voltage, current, internal temperature, response time, etc. at different temperatures), to avoid the situation that the control is damaged due to too high internal temperature of the controller, such as Figure 2As shown, first, place the target intelligent power distribution controller to be tested in the environmental chamber 101, and then use the host computer 106 (specifically, the automation control software) to call the environmental chamber 101 to simulate various different temperature environments (such as 60 degrees, 70 degrees, or 80 degrees, etc.), and maintain the corresponding temperature to ensure that the intelligent power distribution controller is fully immersed, reaching the preset environmental temperature. The specific value of the preset environmental temperature is not limited and can be set according to the actual situation and empirical values. In some embodiments, the temperature range to which the preset environmental temperature belongs can be set to 60 degrees to 80 degrees. For example, the preset environmental temperature can take values such as 60 degrees, 70 degrees, or 80 degrees, etc.

[0041] Among them, the host computer 106 can include, but is not limited to, automation control software, such as Figure 2 As shown, its function is to realize the call of each hardware in the test system (i.e., the environmental chamber 101, the programmable power supply 102, the electronic load 103, the bus tool 104, and the data acquisition instrument 105), as well as the automatic acquisition and analysis of loop data. Moreover, the automation control software can include, but is not limited to, the general automation test software (Test Automation Executor, TAE), the vehicle bus monitoring analysis and simulation tool (Vehicle Bus Analyzer, VBA), and the test resource management software (Testbase control software, TCS).

[0042] The test resource management software TCS is used to realize the control call of the environmental chamber 101, the programmable power supply 102, the electronic load 103, the bus tool 104 (which can be understood as the lower computer corresponding to the VBA software), and the data acquisition instrument 105, and can provide a visual interface for users to manually operate the equipment. For example, users can manually set voltage values, current values, temperature values, etc. through the visual interface. The automation test software TAE can call the test resource management software TCS, issue instructions through the test resource management software TCS to control the environmental chamber 101, the programmable power supply 102, the electronic load 103, etc. to set specific voltage, current, and temperature values; build a test sequence through the automation test software TAE, automatically execute the test steps, and generate a test report for the target intelligent power distribution controller after automatically executing the test steps (such as after executing the corresponding test sequence). The vehicle bus monitoring analysis and simulation tool VBA is used to collect the working / fault status feedback by the controller, simulate and send bus signals, and send the parameter data to the automation test software TAE for the automation test software TAE to use as a reference for generating the production test report.

[0043] Step (2): Use the programmable power supply 102 and the host computer 106 to provide a stable preset voltage for the target intelligent power distribution controller and the data acquisition instrument 105.

[0044] In this implementation mode, after providing a stable preset ambient temperature for the target intelligent power distribution controller using the environmental chamber 101, the programmable power supply 102 can be further controlled and called by the upper computer 106 (specifically, TCS in the automation control software) to output a stable preset voltage (such as about 13.5V, etc.) to provide the necessary power demand for the target intelligent power distribution controller. Among them, the specific value of the preset voltage is not limited and can be set according to the actual situation and empirical values. In some embodiments, the preset voltage can be set to 13.5V, etc.

[0045] Among them, the specific structure of the programmable power supply 102 of the present utility model is not limited, and it only needs to ensure that it can provide stable preset voltage power supply for the test system, which is also the basic equipment to ensure the normal operation of the intelligent power distribution controller.

[0046] Step (3): Use the electronic load 103, bus tool 104 and upper computer 106 to simulate the current / signal of the normal working circuit.

[0047] It should be noted that restricted by the intelligent power distribution logic (such as the pins working and emitting light in the normal circuit environment, etc.), after the target intelligent power distribution controller is powered on through the programmable power supply 102, each circuit will not output normally. It also needs to meet the bus and hard-wired control signals required for the circuit to close and detect that there is no open circuit fault in the detection circuit load. Therefore, to ensure the normal output of the circuit, two conditions need to be simulated. Specifically, the upper computer 106 (specifically, VBA in the automation control software) can be used to control the bus tool 104 to send the command signals required for the corresponding preset power distribution circuit (the specific content is not limited, such as it can be HSD, Efuse, bridge drive, etc.) (such as the command signal to turn on the in-vehicle light pin, etc.) to ensure that the target intelligent power distribution controller in the preset power distribution circuit receives accurate control command signals and operates normally. At the same time, the upper computer 106 can also be used to control the electronic load 104 to output a stable preset current to ensure the normal operation of the entire preset power distribution circuit. Among them, the specific value of the preset current is not limited and can be set according to the actual situation and empirical values. In some embodiments, the preset current can be set to 10A, etc.

[0048] Among them, the specific structure of the electronic load 103 of the present utility model is not limited, and it only needs to ensure that it can provide a stable preset current for the preset power distribution circuit (that is, simulate the working current of the real load of each preset power distribution circuit), and the specific implementation method is not limited. For example, it can send commands to control the working current of the electronic load 103 and commands to control the short circuit or open circuit of the electronic load 103 in real time through methods such as serial port / bus / Ethernet communication.

[0049] Meanwhile, the specific structure of the bus tool 104 is not limited in the present utility model, as long as it can simulate the control signals of each loop to ensure that the loop receives accurate control instructions, and the specific implementation method is not limited. For example, the on-off control of different pin loops of the target intelligent power distribution controller can be achieved by sending loop control request instructions in the form of CAN bus messages.

[0050] Step (4): Use the data collector 105, the bus tool 104, and the upper computer 106 to collect and record the normal parameter data generated by the preset power distribution loop.

[0051] In this implementation mode, after simulating the normal working loop (i.e., the preset power distribution loop for the normal operation of the target intelligent power distribution controller), further, the upper computer 106 (specifically, the TCS in the automation control software) can be used to call the data collector 105 to collect and record the parameter data generated by the preset power distribution loop, and define it as the normal parameter data. The specific content is not limited and may include, but is not limited to, voltage, loop current, and temperature (here defined as the normal voltage signal, normal current signal, and normal temperature signal) etc. At the same time, the upper computer 106 can also be used to control the bus tool 104 to record the status signals, current signals, etc. sent by the controller.

[0052] Among them, the specific structure of the data collector 105 is not limited in the present utility model, as long as it can collect and record the corresponding data (including, but not limited to, voltage, current, temperature, etc.), and can achieve time-sequential interception of the obtained test results and perform numerical analysis such as maximum value and average value on the intercepted part.

[0053] Step (5): Use the electronic load 103, the bus tool 104, and the upper computer 106 to simulate the current / signals of the faulty power distribution loop.

[0054] In this implementation, after ensuring the normal operation of the target intelligent power distribution controller by simulating a normal working circuit (i.e., the preset power distribution circuit for the normal operation of the target intelligent power distribution controller), the host computer 106 (specifically, TCS in the automation control software) can further control the electronic load 103 to turn on the fault mode according to the set instructions (such as the instruction to turn on the short - circuit mode in the form of a CAN bus message sent through the bus tool 104, or the instruction to turn on the short - circuit mode transmitted through TCS, etc.), and provide different fault currents for the faulty power distribution circuit. The specific structure of the faulty power distribution circuit is not limited and can be set according to the actual situation and empirical values. In some embodiments, the faulty power distribution circuit can be set as a short - circuit or over - current fault circuit, etc. Moreover, the over - current method of the over - current fault circuit in this embodiment is also not limited and can be set according to the actual situation and empirical values. In some embodiments, the over - current method of the over - current fault circuit can include, but is not limited to, at least one of the load rated current, fuse rated current, 135% fuse current, and 200% fuse current.

[0055] In this way, combined with the current different types of power distribution circuits (such as HSD, Efuse, bridge drive, etc.), by selecting a variety of over - current methods (including, but not limited to, the load rated current, fuse rated current, 135% fuse current, and 200% fuse current), the protection strategies of the intelligent power distribution controllers in each circuit can be verified. At the same time, by observing the changes in the signals of each monitored circuit (such as whether the current and voltage are normal, etc.), as well as the set time or other conditions, the host computer 106 (specifically, the automation control software) can automatically stop collecting and recording data through the data acquisition instrument 105.

[0056] Among them, the specific structure of the electronic load 103 in the present utility model is still not limited, and it only needs to ensure that it can provide various fault currents for the faulty power distribution circuit according to the test instructions sent by the host computer 106, and the specific implementation method is not limited.

[0057] At the same time, the specific structure of the bus tool 104 in the present utility model is also still not limited, and it only needs to ensure that it can monitor signals such as the loop status sent by the target intelligent power distribution controller, and the specific implementation method is also still not limited.

[0058] Moreover, when simulating the current / signals of the faulty power distribution circuit using the electronic load 103, the bus tool 104, and the host computer 106, the host computer 106 (specifically, TCS in the automation control software) can still call the data acquisition instrument 105 to collect and record the parameter data generated by the faulty power distribution circuit, and define it as faulty parameter data. The specific content is not limited and can include, but is not limited to, voltage, loop current, and temperature (defined as faulty voltage signal, faulty current signal, and faulty temperature signal here), etc.

[0059] Step (6): Use the normal parameter data and fault parameter data by the host computer 106 to test the loop protection performance of the target intelligent power distribution controller, and obtain the test results.

[0060] In this implementation, after the data collector 105 collects and records the normal parameter data generated by the preset power distribution loop and the fault parameter data generated by the faulty power distribution loop, it can feed back the collected normal parameter data and fault parameter data to the host computer 106, so that the host computer 106 can use these normal parameter data and fault parameter data to test the loop protection performance of the target intelligent power distribution controller and obtain the test results.

[0061] Furthermore, an optional implementation is that the host computer is also used to combine the IT protection curve corresponding to the faulty power distribution loop, evaluate the obtained test results to obtain an evaluation result, and automatically generate a test report for the target intelligent power distribution controller according to the evaluation result.

[0062] It should be noted that there is currently no complete regulatory standard requirement for the evaluation basis of fault tests such as short circuit / overcurrent of intelligent power distribution controllers. Therefore, how to evaluate the test results is particularly important. For this reason, the present utility model proposes that the loop fusing time can be automatically intercepted and compared with a set reference value to obtain an evaluation result, and a test report can be automatically generated by the host computer 106 (specifically, TAE in the automation control software).

[0063] Among them, the evaluation basis of the test results mainly refers to the IT protection curves of the fuses selected for each loop. As Figure 3 shown, according to the corresponding relationship between the current and fusing time of each loop, determine the expected fusing time under different test currents (see the load working circuit curve, 135% overcurrent 80-degree smoke emission curve, 135% overcurrent 40-degree smoke emission curve in Figure 3 ), and analyze whether each loop is consistent with the design end through the actual test of the system to identify the problem loops.

[0064] In this way, after placing the target intelligent power distribution controller in the environmental chamber 101 of the test system, the environmental chamber 101 of the system can be used to automatically control the environmental temperature, and the coordinated action of the programmable power supply 102, electronic load 103, bus tool 104, data collector 105, and upper computer 106 of the system can be used to realize the automated operation of the entire link of test execution and test result analysis, greatly improving the test efficiency. At the same time, considering the characteristics of current intelligent insurance, based on the existing overcurrent method, the present utility model also realizes the test of various easily overlooked fault currents in the electronic load, thereby more comprehensively verifying the loop protection performance of the target intelligent power distribution controller and improving the test accuracy of the target intelligent power distribution controller. In addition, a method of combining the IT protection curve to evaluate the test results is also proposed, making the test result analysis more reasonable and well-founded.

[0065] In summary, the present utility model provides a test system for an intelligent power distribution controller, which includes an environmental chamber, a programmable power supply, an electronic load, a bus tool, a data collector, and an upper computer, and the target intelligent power distribution controller to be tested is placed in the environmental chamber. Among them, the environmental chamber is used to provide a stable preset environmental temperature for the target intelligent power distribution controller, and the programmable power supply is used to provide a stable preset voltage and fault voltage (such as overvoltage / undervoltage, etc.) for the target intelligent power distribution controller and the data collector; the bus tool is used to simulate the control instruction signal of the preset power distribution loop to ensure that the target intelligent power distribution controller in the preset power distribution loop receives accurate control instruction signals and works normally; and it is also used to receive the working state signal or fault state signal fed back by the target intelligent power distribution controller; the electronic load is used to provide a stable preset current for the preset power distribution loop to ensure the normal operation of the preset power distribution loop, and is also used to receive the test instruction of the upper computer and, according to this test instruction, provide a fault current for the faulty power distribution loop; the data collector is used to collect and record the normal parameter data generated by the preset power distribution loop and the fault parameter data generated by the faulty power distribution loop, and feedback the collected normal parameter data and fault parameter data to the upper computer, so that the upper computer can use the normal parameter data and fault parameter data to test the loop protection performance of the target intelligent power distribution controller and obtain the test result.

[0066] It can be seen that the test system adopted in the embodiment of the present utility model, after placing the intelligent power distribution controller to be tested in the environmental chamber of the system, can use the environmental chamber of the system to automatically control the environmental temperature and use the coordinated action of the programmable power supply, electronic load, bus tool, data collector, and upper computer of the system to realize the automated operation of the entire link of test execution and test result analysis, greatly improving the test efficiency. And the present utility model also increases various easily overlooked fault currents (such as load rated current, insurance rated current, etc.) through the electronic load during the test process, thereby more comprehensively verifying the loop protection performance of the intelligent power distribution controller and improving the test accuracy of the intelligent power distribution controller.

[0067] As can be understood from the description of the above embodiments, those skilled in the art can clearly understand that all or part of the steps in the above embodiments can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present utility model, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disc, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network communication device such as a media gateway, etc.) to execute the methods described in various embodiments or some parts of the embodiments of the present utility model.

[0068] It should be noted that the various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0069] It should also be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0070] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A test system for an intelligent power distribution controller, characterized in that, The system includes: an environmental chamber, a programmable power supply, an electronic load, a bus tool, a data acquisition instrument, and a host computer; the target intelligent power distribution controller to be tested is placed inside the environmental chamber; The environmental chamber is used to provide a stable preset environmental temperature for the target intelligent power distribution controller; The programmable power supply is used to provide a stable preset voltage and a fault voltage for the target intelligent power distribution controller and the data acquisition instrument; The bus tool is used to simulate the control instruction signals of a preset power distribution loop to ensure that the target intelligent power distribution controller in the preset power distribution loop receives accurate control instruction signals and operates normally; and is also used to receive the working status signals or fault status signals fed back by the target intelligent power distribution controller; The electronic load is used to provide a stable preset current for the preset power distribution loop to ensure the normal operation of the preset power distribution loop; The electronic load is also used to receive the test instructions from the host computer and provide a fault current for the faulty power distribution loop according to the test instructions; The data acquisition instrument is used to collect and record the normal parameter data generated by the preset power distribution loop and the fault parameter data generated by the faulty power distribution loop, and feed the collected normal parameter data and fault parameter data back to the host computer, so that the host computer can use the normal parameter data and fault parameter data to test the loop protection performance of the target intelligent power distribution controller and obtain the test results.

2. The test system according to claim 1, wherein The temperature range to which the preset environmental temperature belongs is from -40°C to 100°C.

3. The test system according to claim 1, wherein The preset voltage and preset current are 13.5V and 10A respectively.

4. The test system according to claim 1, wherein The faulty power distribution loop is a short - circuit or over - current fault loop.

5. The test system according to claim 4, wherein The over - current modes of the over - current fault loop include at least one of the load rated current, the fuse rated current, 135% of the fuse current, and 200% of the fuse current.

6. The test system according to claim 1, characterized in that, The normal parameter data includes normal voltage signals, normal current signals, and normal temperature signals; the fault parameter data includes fault voltage signals, fault current signals, and fault temperature signals.

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