Testing System for Locomotive Electronic Control Device

Abstract

The present application provides a test system for a locomotive electronic control device. The test system for the locomotive electronic control device includes a cabinet and an electrical device; the cabinet includes a cabinet body and a display panel, the electrical device includes a control unit, a power supply unit, a power conversion unit, and a test unit, the power conversion unit includes a first power conversion module, the test unit includes a first test module, the power supply unit is electrically connected to each first power conversion module, and the first power conversion module is electrically connected to the first test module in a one-to-one correspondence; each first test module and each first power conversion module are electrically connected to the control unit, and each first test module and each first power conversion module are electrically connected to the display panel. The test system for the electronic control device of the present application can perform comprehensive tests on the locomotive electronic control device and is relatively convenient to use.

Description

Technical Field

[0001] The present application relates to the technical field of locomotive electronic control devices, and particularly to a test system for a locomotive electronic control device. Background Art

[0002] The locomotive electronic control device is an electrical control system for DF7C diesel locomotives. By inputting signals through PIU sensors and diesel engine speed sensors, functions such as traction control (constant power, low constant speed, anti-slip) of diesel locomotives, stepless speed regulation control of diesel engines, and fault excitation can be achieved. In the railway locomotive maintenance industry, performance testing of locomotive electronic control devices is often required.

[0003] Currently, in the test of locomotive electronic control devices, a working power supply is usually provided to the locomotive electronic control device, and then a test device is connected to the locomotive electronic control device through a cable, and test signals are provided to the locomotive electronic control device by manually controlling the test device.

[0004] However, this test method only tests some performances of the locomotive electronic control device and is not very convenient to use. Summary of the Invention

[0005] Based on this, the present application provides a test system for a locomotive electronic control device, which can conduct comprehensive tests on the locomotive electronic control device and is more convenient to use.

[0006] The test system for the locomotive electronic control device provided by the present application includes a cabinet and an electrical device; the cabinet includes a cabinet body and a display panel, the display panel is located on the cabinet body, and the electrical device is located inside the cabinet;

[0007] The electrical device includes a control unit, a power supply unit, a power conversion unit, and a test unit. The power conversion unit includes at least two first power conversion modules, and the test unit includes at least two first test modules. The power supply unit is electrically connected to each first power conversion module, and the power supply unit is used to supply power to each first power conversion module. The first power conversion module is electrically connected to the first test module in one-to-one correspondence. The first power conversion module is used to convert the input voltage of the power supply unit and input the converted voltage of the first power conversion module to the first test module correspondingly, where the voltage values converted by each first power conversion module are different;

[0008] Each first test module is electrically connected to the control unit. Each first test module is used to be connected to the locomotive electronic control device. The control unit is used to control each first test module to sequentially provide test signals to the locomotive electronic control device to test the locomotive electronic control device;

[0009] Each first test module is electrically connected to the display panel, and the display panel is used to display the test results of the locomotive electronic control device.

[0010] In a possible implementation, for the test system of the locomotive electronic control device provided in this application, the test signals include voltage signals and speed signals. At least two first power conversion modules include a first power conversion sub-module and a second power conversion sub-module. At least two first test modules include a speed control board test sub-module and a regulator board test sub-module. The first power conversion sub-module is correspondingly electrically connected to the speed control board test sub-module, and the second power conversion sub-module is correspondingly electrically connected to the regulator board test sub-module;

[0011] The speed control board test sub-module is used to provide a speed signal for the speed control board of the locomotive electronic control device to test the speed regulation performance of the speed control board;

[0012] The regulator board test sub-module is used to provide voltage signals for the regulator board, the idle speed board, and the output board of the locomotive electronic control device to test the voltage regulation performance of the regulator board, test the anti-idle performance, and test the excitation performance of the output board.

[0013] In a possible implementation, for the test system of the locomotive electronic control device provided in this application, the first power conversion sub-module is further used to transmit the converted voltage to the power supply board of the locomotive electronic control device. The display panel includes a first display module, and the first display module is used to display whether the power supply board outputs voltage.

[0014] In a possible implementation, for the test system of the locomotive electronic control device provided in this application, the power conversion unit further includes a second power conversion module. The power supply unit is electrically connected to the second power conversion module. The second power conversion module is used to convert the input voltage of the power supply unit. The second power conversion module is used to be connected to the current measurement board of the locomotive electronic control device to transmit the voltage converted by the second power conversion module to the current measurement board of the locomotive electronic control device. The first display module includes a display control sub-module and at least two display sub-modules. The display control sub-module is connected to each display sub-module. The display control module is used to control the display sub-module to switch to display whether the power supply board and the current measurement board output voltage. One display sub-module is used to display whether the current measurement board outputs voltage, and one display sub-module is used to display whether the power supply board outputs voltage. Among them, the voltage value converted by the second power conversion module is different from the voltage values converted by the first power conversion sub-module and the second power conversion sub-module.

[0015] In a possible implementation, for the test system of the locomotive electronic control device provided in this application, the test unit further includes a second test module. The second test module is used to be electrically connected to the fault board of the locomotive electronic control device. The display panel further includes a second display module, and the second display module is used to display the current output by the fault board.

[0016] In a possible implementation, the test system for the locomotive electronic control device provided by the present application, the display sub-module for displaying whether the current measuring plate outputs voltage is further used to display whether the regulating plate and the idle running plate output voltage;

[0017] The display panel further includes a third display module and a fourth display module. The third display module is used to display the current of the output board, and the fourth display module is used to display the speed of the speed regulating board.

[0018] In a possible implementation, the test system for the locomotive electronic control device provided by the present application, at least two display sub-modules include a voltmeter and a power supply board display lamp. The voltmeter is used to display whether the regulating plate, the idle running plate and the current measuring plate output voltage, and the power supply board display lamp is used to display whether the power supply board outputs voltage;

[0019] The second display module is a first ammeter; the third display module is a second ammeter;

[0020] The fourth display module is a mechanical display meter.

[0021] In a possible implementation, the test system for the locomotive electronic control device provided by the present application, the output voltage of the first power conversion sub-module is 110V DC, the output voltage of the second power conversion sub-module is 12V DC, and the output voltage of the second power conversion module is 75mV DC.

[0022] In a possible implementation, the test system for the locomotive electronic control device provided by the present application, the cabinet body is provided with a signal input interface. The signal input interface includes a whole machine input interface and at least one single board input interface. The whole machine input interface is used to connect with the locomotive electronic control device. The first power conversion sub-module and the regulating plate test sub-module are both electrically connected to at least one single board input interface. At least one single board input interface is used to connect with at least one of the power supply board, the regulating plate, the idle running plate and the output board.

[0023] In a possible implementation, the test system for the locomotive electronic control device provided by the present application, the cabinet further includes a cabinet door. The lower part of the cabinet body has a receiving cavity for receiving electrical devices. The side of the receiving cavity has an opening, and the cabinet door is coverably arranged on the opening;

[0024] The test system for the locomotive electronic control device further includes a first chassis and a second chassis. The first chassis and the second chassis are both received in the receiving cavity. The test unit is arranged in the first chassis, and the power conversion unit is arranged in the second chassis.

[0025] The test system of the locomotive electronic control device of the present application. The electrical device is provided with a control unit for a power conversion unit and a test unit, and a power supply is provided for supplying power to the power conversion unit. Among them, the power conversion unit is provided with at least two first power conversion modules to convert alternating current into different direct currents, and the test unit is provided for providing test signals to the locomotive electronic control device. Among them, the test unit is provided with at least two first test modules for providing test signals to different modules in the locomotive electronic control device, and a display panel is provided for displaying test results to facilitate judgment by the staff. Thus, the test system of the locomotive electronic control device can conduct comprehensive tests on the locomotive electronic control device and is relatively convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 Structural schematic diagram of the test system of the locomotive electronic control device provided by the embodiment of the present application;

[0028] Figure 2 Working principle of the test system of the locomotive electronic control device provided by the embodiment of the present application Figure 1 ;

[0029] Figure 3 Working principle of the test system of the locomotive electronic control device provided by the embodiment of the present application Figure 2 ;

[0030] Figure 4 Circuit schematic diagram of the test system of the locomotive electronic control device provided by the embodiment of the present application;

[0031] Figure 5 is Figure 1 Structural schematic diagram of the display panel in

[0032] Figure 6 is Figure 1 right view of

[0033] Description of the reference numerals:

[0034] 10. Test system of the locomotive electronic control device;

[0035] 100, Cabinet; 110, Cabinet body; 120, Display panel; 121, First display module; 1211, Display control sub-module; 1212, Display sub-module; 122, Second display module; 123, Third display module; 124, Fourth display module;

[0036] 200, Electrical device; 210, Control unit; 220, Power supply unit; 230, Power conversion unit; 231, First power conversion module; 2311, First power conversion sub-module; 2312, Second power conversion sub-module; 232, Second power conversion module; 240, Test unit; 241, First test module; 2411, Speed control board test sub-module; 2412, Regulation board test sub-module; 242, Second test module;

[0037] 300, First chassis; 400, Second chassis;

[0038] 20, Locomotive electronic control device. Detailed implementation mode

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of this application. In the drawings, the same or similar reference numerals denote the same or similar components or components with the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain this application and should not be construed as limiting this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0040] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, or the internal connection or interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0042] The terms "first", "second", "third" (if any) in the description, claims and above-mentioned drawings of the present application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0043] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or display that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or displays.

[0044] The locomotive electronic control device is an electrical control system for DF7C diesel locomotives. By inputting signals through PIU sensors and diesel engine speed sensors, functions such as traction control (constant power, low constant speed, anti-slip), stepless speed regulation control of diesel engines, and fault excitation of the diesel locomotive can be achieved. In the railway locomotive maintenance industry, performance testing of locomotive electronic control devices is often required. Among them, the locomotive electronic control devices mainly include DHTQ-type electronic constant power regulators, DF-J33-type locomotive electronic control devices, and DF-J40 series microcomputer control devices, etc. The DHTQ-type electronic constant power regulator has a single function and can only perform constant power regulation without backup. After a failure, the locomotive cannot use electronic excitation to run. The DF-J33-type locomotive electronic control device is divided into two groups for excitation control, and one of them is cold backup. When one group fails, the group can be switched by replacing the external plug or switching the plug-in.

[0045] Currently, in the test of locomotive electronic control devices, usually a working power supply is provided to the locomotive electronic control device, and then the test equipment is connected to the locomotive electronic control device through cables, and test signals are provided to the locomotive electronic control device by manually controlling the test equipment.

[0046] However, this testing method only tests some of the performance of the locomotive electronic control device. Due to the lack of a dedicated test device, it is impossible to test all modules of the locomotive electronic control device, resulting in incomplete tests and difficulty in correctly testing the logical control relationship of the locomotive electronic control device. Moreover, during the test, it is necessary to connect each test device, each power supply, and the locomotive electronic control device in sequence, making the test inconvenient and prone to operation errors, resulting in incorrect circuit connections, which may cause short circuits or even damage to the test equipment or the locomotive electronic control device.

[0047] Based on this, the embodiment of the present application provides a test system for a locomotive electronic control device, which can comprehensively test the locomotive electronic control device and is relatively easy to use.

[0048] The following will detail the test system for the locomotive electronic control device according to the embodiment of the present application with reference to the accompanying drawings.

[0049] Figure 1 It is a schematic structural diagram of the test system for the locomotive electronic control device provided by the embodiment of the present application; Figure 2 It is the working principle of the test system for the locomotive electronic control device provided by the embodiment of the present application Figure 1 Refer to Figure 1 And Figure 2 As shown, the test system 10 for the locomotive electronic control device provided by the present application includes a cabinet 100 and an electrical device 200. The cabinet 100 includes a cabinet body 110 and a display panel 120. The display panel 120 is located on the cabinet body 110, and the electrical device 200 is located inside the cabinet body 110.

[0050] The electrical device 200 includes a control unit 210, a power supply unit 220, a power conversion unit 230, and a test unit 240. The power conversion unit 230 includes at least two first power conversion modules 231. The test unit 240 includes at least two first test modules 241. The power supply unit 220 is electrically connected to each first power conversion module 231. The power supply unit 220 is used to supply power to each first power conversion module 231. The first power conversion module 231 is electrically connected to the first test module 241 in a one-to-one correspondence. The first power conversion module 231 is used to convert the input voltage of the power supply unit 220 and input the converted voltage of the first power conversion module 231 to the first test module 241 correspondingly. Among them, the voltage values converted by each first power conversion module 231 are all different.

[0051] Each first test module 241 is electrically connected to the control unit 210. Each first test module 241 is used to be connected to the locomotive electronic control device 20. The control unit 210 is used to control each first test module 241 to sequentially provide test signals to the locomotive electronic control device 20 to test the locomotive electronic control device 20. Each first test module 241 is electrically connected to the display panel 120. The display panel 120 is used to display the test results of the locomotive electronic control device 20.

[0052] In this application, the cabinet 110 is used to install the electrical device 200 and the display panel 120. Among them, the control unit 210, the power supply unit 220, the power conversion unit 230, and the test unit 240 are integrated in the electrical device 200. The control unit 210 is used for the power conversion unit 230 and the test unit 240. The power supply is used to supply power to the power conversion unit 230. The power supply unit 220 may include an AC voltage stabilizer, and the AC voltage stabilizer can make the power supply of the mains or the generator connected to the test system 10 of the locomotive electronic control device more stable, so that the power conversion unit 230 and the test unit 240 can work stably.

[0053] The test unit 240 is used to test the locomotive electronic control device 20. Specifically, the locomotive electronic control device 20 may be a DF-J33 type locomotive electronic control device 20. The locomotive electronic control device 20 includes a power supply board, an output board, an adjustment board, a speed control board, a fault board, an idling board, and a current measurement board. Among them, the power supply board is used to supply power to the output board, the adjustment board, the speed control board, the fault board, the idling board, and the current measurement board. The output board is used to control the current of the exciter of the locomotive. The adjustment board is used to control the output power of the diesel engine of the locomotive. The speed control board is used to control the speed increase or decrease of the diesel engine. The fault board is used to adjust the current of the exciter to avoid the impact of the exciter when the exciter of the locomotive fails. The idling board is used to prevent the diesel engine of the locomotive from idling. The current measurement board is used to measure the current of the two groups of exciters of the locomotive.

[0054] Since the power supplies required by the locomotive electronic control device 20 and the test unit 240 are direct current, the power conversion unit 230 can convert the alternating current of the power supply into direct current to supply direct current to the locomotive electronic control device 20 and the test unit 240. Moreover, the voltage requirements for the direct current required by the locomotive electronic control device 20 and the test unit 240 are different. That is, the power supply required by the power supply board is 110V DC, the power supplies required by the output board, the regulation board, the speed regulation board, the fault board, the idle rotation board and the current measurement board are 12V DC, and the power supplies required by the test unit 240 are 110V DC and 12V DC. Therefore, at least two first power conversion modules 231 are provided in the power conversion unit 230. One of the first power conversion modules 231 can convert 220V AC into 110V DC, and the other first power conversion module 231 can convert 220V AC into 12V DC to meet the voltage requirements of different first test modules 241 and the locomotive electronic control device 20.

[0055] Therefore, the power supply board is powered by the first power conversion module 231, and whether the power supply board outputs 12V DC is tested to test whether the performance of the power supply board is normal. The output board, the regulation board, the speed regulation board, the idle rotation board and the current measurement board are powered and provided with test signals by the first test module 241. In this way, the test system 10 of the locomotive electronic control device can systematically test the locomotive electronic control device 20. There is no risk of short circuit caused by incorrect wiring during the test. And during the test, only the locomotive electronic control device 20 needs to be electrically connected to the test system 10 of the locomotive electronic control device, and then different power supplies and test signals are input to the locomotive electronic control device 20 through the control unit 210 to obtain different outputs and display them on the display panel 120. The staff can judge whether the various performances of the locomotive electronic control device 20 are normal by observing the display panel 120.

[0056] Alternatively, any one of the power supply board, the output board, the regulation board, the speed regulation board, the idle rotation board and the current measurement board in the locomotive electronic control device 20 can be electrically connected to the test system 10 of the locomotive electronic control device alone to separately test the performance of the power supply board, the output board, the regulation board, the speed regulation board, the idle rotation board or the current measurement board. For example, the power supply board is powered by the first power conversion module 231 to test whether the performance of the power supply board is normal, and the first test module 241 supplies power to and provides test signals to the separate output board to separately test whether the performance of the output board is normal. The separate test processes of the regulation board, the speed regulation board, the idle rotation board or the current measurement board are similar to the separate test process of the output board, and will not be elaborated here one by one.

[0057] The test system 10 of the locomotive electronic control device according to the embodiment of the present application. The electrical device 200 sets the control unit 210 for the power conversion unit 230 and the test unit 240, and sets the power supply to supply power to the power conversion unit 230. Among them, the power conversion unit 230 sets at least two first power conversion modules 231 to convert alternating current into different direct currents, and sets the test unit 240 to provide test signals to the locomotive electronic control device 20. Among them, the test unit 240 sets at least two first test modules 241 to provide test signals to different modules in the locomotive electronic control device 20, and sets the display panel 120 to display the test results for the staff to judge. Thus, the test system 10 of the locomotive electronic control device can conduct comprehensive tests on the locomotive electronic control device 20 and is relatively easy to use.

[0058] Figure 3 The working principle of the test system for the locomotive electronic control device provided by the embodiment of the present application Figure 2 ; Figure 4 The circuit schematic diagram of the test system for the locomotive electronic control device provided by the embodiment of the present application. Refer to Figures 2 to 4 As shown, in specific implementation, the test signals include voltage signals and speed signals. At least two first power conversion modules 231 include a first power conversion sub-module 2311 and a second power conversion sub-module 2312. At least two first test modules 241 include a speed control board test sub-module 2411 and a regulator board test sub-module 2412. The first power conversion sub-module 2311 is correspondingly electrically connected to the speed control board test sub-module 2411, and the second power conversion sub-module 2312 is correspondingly electrically connected to the regulator board test sub-module 2412. Among them, the first power conversion sub-module 2311 is used to convert AC 220V into DC 110V to supply power to the speed control board test sub-module 2411. The second power conversion sub-module 2312 is used to convert AC 220V into DC 12V to supply power to the regulator board test sub-module 2412.

[0059] The speed control board test sub-module 2411 is used to provide a speed signal for the speed control board of the locomotive electronic control device 20 to test the speed regulation performance of the speed control board of the locomotive electronic control device 20. The regulator board test sub-module 2412 is used to provide voltage signals for the regulator board of the locomotive electronic control device 20, the idle board of the locomotive electronic control device 20, and the output board of the locomotive electronic control device 20 to test the voltage regulation performance of the regulator board of the locomotive electronic control device 20, and to test the anti-idling performance of the idle board of the locomotive electronic control device 20, and to test the excitation performance of the output board of the locomotive electronic control device 20.

[0060] Specifically, the governor board test sub-module 2411 includes a governor board test circuit and a rotational speed signal generation circuit. Among them, the rotational speed signal generation circuit includes a rotational speed generator, which is used to simulate the rotational speed signal of the locomotive's diesel engine and transmit the rotational speed signal to the governor board test circuit. The governor board test circuit is controlled by the control unit 210 to provide a speed signal to the governor board.

[0061] The regulator board test sub-module 2412 includes a plurality of potentiometers and a plurality of switches. The switches and the potentiometers are connected in one-to-one correspondence. The switches control the flow of the direct current circuits where the different potentiometers are located to provide voltage signals to the regulator board, the idle speed board, and the output board.

[0062] Thus, the governor board test sub-module 2411 provides a test signal to the governor board, thereby testing whether the voltage regulation performance of the regulator board is normal. The regulator board test sub-module 2412 can provide test signals to the regulator board, the idle speed board, and the output board, thereby testing whether the voltage regulation performance of the regulator board, the anti-idle performance of the idle speed board, and the excitation performance of the output board are normal.

[0063] Figure 5 For Figure 1 the structural schematic diagram of the display panel. Refer to Figures 3 to 5 As shown, in a possible implementation manner, the first power conversion sub-module 2311 is further configured to transmit the converted voltage to the power board of the locomotive electronic control device 20. The display panel 120 includes a display control module 1211 and a first display module 121. The display control module 1211 is used to display whether the power board outputs voltage. Specifically, the first display module 121 includes a display control module 1211 and at least two display sub-modules 1212. The display control module 1211 is connected to each display sub-module 1212. The display control module 1211 is used to control the switching display of each display sub-module 1212 to show whether the power board, the regulator board, the idle speed board, and the output board output voltage. One display sub-module 1212 is used to display whether the power board outputs voltage, and the other display sub-module 1212 is used to display whether the regulator board, the idle speed board, and the output board output voltage.

[0064] In this way, the DC 110V output by the first power conversion sub-module 2311 is transmitted to the power supply board to supply power to the power supply board, and the display control module 1211 controls the switching of each display sub-module 1212 to display the test result of one of the power supply board, regulation board, idle board, and output board in the locomotive electronic control device 20. According to the display result of the display sub-module 1212, it is judged whether the power supply board can correctly convert DC 110V into DC 12V. When the display control module 1211 controls the display sub-module 1212 to display the test result of the power supply board, if there is voltage displayed on the display sub-module 1212, it indicates that the performance of the power supply board is normal; if there is no display on the display sub-module 1212, it indicates that the performance of the power supply board is abnormal.

[0065] Refer to Figure 3 And Figure 4 As shown, in some embodiments, the power conversion unit 230 further includes a second power conversion module 232. The power supply unit 220 is electrically connected to the second power conversion module 232. The second power conversion module 232 is used to convert the input voltage of the power supply unit 220. The second power conversion module 232 is used to be connected to the current measuring board of the locomotive electronic control device 20 to transmit the voltage converted by the second power conversion module 232 to the current measuring board of the locomotive electronic control device 20. The display sub-module 1212 is further used to display whether the current measuring board outputs voltage. Among them, the voltage value converted by the second power conversion module 232 is different from the voltage values converted by the first power conversion sub-module 2311 and the second power conversion sub-module 2312. That is, the first power conversion sub-module 2311 converts AC 220V into DC 110V, the second power conversion sub-module 2312 converts AC 220V into DC 12V, and the second power conversion module 232 converts AC 220V into DC 75mV.

[0066] The second power conversion module 232 provides a voltage signal to the current measuring board, and the display module is controlled to switch the display of the display sub-module 1212 to display the test result of the current measuring board. If the display sub-module 1212 displays voltage, it indicates that the performance of the current measuring board is normal; if the display sub-module 1212 has no display, it indicates that the performance of the current measuring board is abnormal.

[0067] Refer to Figures 3 to 5 As shown, in some embodiments, the test unit 240 further includes a second test module 242. The second test module 242 is used to be electrically connected to the fault board of the locomotive electronic control device 20. The display panel 120 further includes a second display module 122. The second display module 122 is used to display the current output by the fault board.

[0068] By setting the second test module 242 to test the faulty board. Specifically, the second test module 242 includes at least three resistors. By connecting at least three resistors in parallel, the situation where the locomotive electronic control device 20 encounters a fault is simulated, and the test result of the current measuring board is displayed through the second display module 122. If the current displayed by the second display module 122 is within the normal range, it indicates that the performance of the faulty board is normal. If the current displayed by the second display module 122 is outside the normal range, it indicates that the performance of the faulty board is abnormal. Exemplarily, the normal range of the current of the current measuring board is 0 - 3A.

[0069] Referring to Figure 5 As shown, in a possible implementation manner, for the test system of the locomotive electronic control device provided by the present application, the display sub-module 1212 is further configured to display whether the regulating board and the idle running board output voltage.

[0070] The display panel 120 further includes a third display module 123 and a fourth display module 124. The third display module 123 is used to display the current of the output board, and the fourth display module 124 is used to display the speed of the speed regulating board.

[0071] When the display sub-module 1212 is switched to display the test result of the regulating board, if a voltage is displayed on the display sub-module 1212, it indicates that the voltage regulation performance of the regulating board is normal. If there is no display on the display sub-module 1212, it indicates that the voltage regulation performance of the regulating board is abnormal.

[0072] When the display sub-module 1212 is switched to display the test result of the idle running board, if a voltage is displayed on the display sub-module 1212, it indicates that the anti-idle running performance of the idle running board is normal. If there is no display on the display sub-module 1212, it indicates that the anti-idle running performance of the idle running board is abnormal.

[0073] By setting the third display module 123 to display the test result of the current of the output board, if the current displayed by the third display module 123 is within the normal range, it indicates that the performance of the output board is normal. If the current displayed by the third display module 123 is outside the normal range, it indicates that the performance of the output board is abnormal. Exemplarily, the normal range of the current of the output board is 0 - 6A.

[0074] By setting the fourth display module 124 to display the test result of the speed of the speed regulating board, when the control unit 210 controls the speed regulating board test sub-module 2411 to provide a speed signal to the speed regulating board, if the fourth display module 124 displays a test result corresponding one-to-one to the speed signal, it indicates that the speed regulation performance of the speed regulating board is normal. If the fourth display module 124 displays a test result not corresponding to the speed signal, it indicates that the speed regulation performance of the speed regulating board is abnormal.

[0075] For example, when the control unit 210 controls the speed regulation board test sub-module 2411 to provide a speed increase signal to the speed regulation board, if the fourth display module 124 displays the test result of speed increase, it indicates that the speed regulation performance of the speed regulation board is normal; if the fourth display module 124 displays the test result of speed decrease or stop, it indicates that the speed regulation performance of the speed regulation board is abnormal.

[0076] Thus, by controlling the display control module 1211 to switch the display sub-module 1212 to display the voltage test results of the regulating board, the idling board, and the flow measurement board, it is possible to determine whether the performance of the regulating board, the idling board, and the flow measurement board is normal. By setting the third display module 123 to display the current test result of the output board, it is possible to determine whether the performance of the output board is normal. By setting the fourth display module 124 to display the speed test result of the speed regulation board, it is possible to determine whether the performance of the speed regulation board is normal. By setting the display sub-module 1212, the second display module 122, the third display module 123, and the fourth display module 124 on the display panel 120 to display all the test results of the locomotive electronic control device 20, it is convenient for the staff to observe and judge.

[0077] Refer to Figure 5 As shown, in specific implementation, the display sub-module 1212 includes a voltmeter and a power supply board display lamp. The voltmeter is used to display whether the regulating board, the idling board, and the flow measurement board output voltage, and the power supply board display lamp is used to display whether the power supply board outputs voltage. When the control display module controls the voltmeter to display the test result of one of the regulating board, the idling board, and the flow measurement board, if the voltmeter displays voltage, it indicates that the performance of the regulating board, the idling board, or the flow measurement board is normal. By observing whether the power supply board display lamp is lit, it is convenient for the staff to judge whether the performance of the power supply board is normal.

[0078] The second display module 122 is a first ammeter, the third display module 123 is a second ammeter, and the fourth display module 124 is a mechanical display meter. Thus, by observing whether voltage is output by the voltmeter, it is convenient for the staff to judge whether the performance of the regulating board, the idling board, or the flow measurement board is normal. By observing the current output by the first ammeter, it is convenient for the staff to judge whether the performance of the flow measurement board is normal. By observing the current output by the second ammeter, it is convenient for the staff to judge whether the performance of the output board is normal. By observing whether the mechanical display meter is in the corresponding gear, it is convenient for the staff to judge whether the performance of the speed regulation board is normal. The test system 10 of the locomotive electronic control device is relatively convenient to use.

[0079] In specific implementation, the output voltage of the first power conversion sub-module 2311 is 110V DC, the output voltage of the second power conversion sub-module 2312 is 12V DC, and the output voltage of the second power conversion module 232 is 75mV DC. Thus, the first power conversion sub-module 2311 can supply power to the power board and the speed regulation board test sub-module 2411, the second power conversion sub-module 2312 can supply power to the regulation board test sub-module 2412, and the second power conversion module 232 can provide a voltage signal to the current measurement board.

[0080] In some embodiments, the cabinet 110 is provided with a signal input interface, which includes a whole machine input interface and at least one single-board input interface. The whole machine input interface is used to connect to the locomotive electronic control device 20. Both the first power conversion sub-module 2311 and the regulation board test sub-module 2412 are electrically connected to at least one single-board input interface, and at least one single-board input interface is used to connect to at least one of the power board, the regulation board, the idle rotation board, and the output board.

[0081] It can be understood that when it is necessary to test the whole locomotive electronic control device 20, the locomotive electronic control device 20 can be connected to the test system of the locomotive control device through the whole machine input interface to test the power board, the regulation board, the idle rotation board, the output board, the current measurement board, the speed regulation board, and the fault board in the locomotive electronic control device 20 one by one. When it is necessary to test any one of the power board, the regulation board, the idle rotation board, and the output board alone, any one of the power board, the regulation board, the idle rotation board, and the output board can be electrically connected to the test system 10 of the locomotive electronic control device through the single-board input interface, so that the first power conversion sub-module 2311 supplies power to the power board, or the regulation board test sub-module 2412 supplies power to and provides test signals to any one of the regulation board, the idle rotation board, and the output board.

[0082] Similarly, the signal input interface can also include single-board input interfaces for separately testing the current measurement board, the speed regulation board, and the fault board, so that the test system 10 of the locomotive electronic control device can separately test any one of the current measurement board, the speed regulation board, and the fault board.

[0083] Figure 6 For Figure 1 right view. Refer to Figure 1 With Figure 6 As shown, in some embodiments, the cabinet 100 further includes a cabinet door. The lower part of the cabinet body 110 has a receiving cavity for receiving the electrical device 200. The side of the receiving cavity has an opening, and the cabinet door can be opened and closed to cover the opening.

[0084] The test system 10 of the locomotive electronic control device further includes a first chassis 300 and a second chassis 400. Both the first chassis 300 and the second chassis 400 are housed in the accommodation cavity. The test unit 240 is disposed in the first chassis 300, and the power conversion unit 230 is disposed in the second chassis 400.

[0085] Specifically, the first chassis 300 and the second chassis 400 are installed in the accommodation cavity in a rack-mounted structure. The first chassis 300 and the second chassis 400 are modularly encapsulated according to functional classification. The input and output interfaces of the first chassis 300 and the second chassis 400 are both connected by aviation connectors. A wire storage cabinet is also provided in the cabinet body 110 for storing reserved interface cables. Thus, the test system 10 of the locomotive electronic control device is convenient for processing and use.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A test system for a locomotive electronic control device, characterized in that, It includes a cabinet and an electrical device. The cabinet includes a cabinet body and a display panel. The display panel is located on the cabinet body, and the electrical device is located inside the cabinet. The electrical device includes a control unit, a power supply unit, a power conversion unit, and a test unit. The power conversion unit includes at least two first power conversion modules, and the test unit includes at least two first test modules. The power supply unit is electrically connected to each of the first power conversion modules. The power supply unit is used to supply power to each of the first power conversion modules. The first power conversion modules are electrically connected to the first test modules in one-to-one correspondence. The first power conversion modules are used to convert the input voltage of the power supply unit and input the voltages converted by the first power conversion modules to the corresponding first test modules respectively. Among them, the voltage values converted by each of the first power conversion modules are different. Each of the first test modules is electrically connected to the control unit. Each of the first test modules is used to be connected to the locomotive electronic control device. The control unit is used to control each of the first test modules to sequentially provide test signals to the locomotive electronic control device to test the locomotive electronic control device. Each of the first test modules is electrically connected to the display panel. The display panel is used to display the test results of the locomotive electronic control device. The test signals include voltage signals and speed signals. The at least two first power conversion modules include a first power conversion sub-module and a second power conversion sub-module. The at least two first test modules include a speed control board test sub-module and a regulating board test sub-module. The first power conversion sub-module is electrically connected to the speed control board test sub-module in correspondence, and the second power conversion sub-module is electrically connected to the regulating board test sub-module in correspondence. The speed control board test sub-module is used to provide the speed signal to the speed control board of the locomotive electronic control device to test the speed regulation performance of the speed control board. The regulating board test sub-module is used to provide the voltage signal to the regulating board of the locomotive electronic control device, the idle speed board of the locomotive electronic control device, and the output board of the locomotive electronic control device to test the voltage regulation performance of the regulating board, test the anti-idling performance of the idle speed board, and test the excitation performance of the output board. The power supply unit includes an AC voltage stabilizer.

2. The test system of the locomotive electronic control device according to claim 1, wherein The first power conversion sub-module is further used to transmit the converted voltage to the power supply board of the locomotive electronic control device. The display panel includes a first display module. The first display module is used to display whether the power supply board outputs voltage.

3. The test system for the locomotive electronic control device according to claim 2, characterized in that, The power conversion unit further includes a second power conversion module. The power supply unit is electrically connected to the second power conversion module. The second power conversion module is used to convert the input voltage of the power supply unit. The second power conversion module is used to be connected to the current measurement board of the locomotive electronic control device to transmit the voltage converted by the second power conversion module to the current measurement board. The first display module includes a display control sub-module and at least two display sub-modules. The display control sub-module is connected to each of the display sub-modules. The display control sub-module is used to control each of the display sub-modules to switch and display whether the power supply board and the current measurement board output voltage. One of the display sub-modules is used to display whether the current measurement board outputs voltage, and the other display sub-module is used to display whether the power supply board outputs voltage. Wherein, the voltage value after conversion by the second power conversion module is different from the voltage values after conversion by the first power conversion sub-module and the second power conversion sub-module.

4. The test system for the locomotive electronic control device according to claim 3, characterized in that, The test unit further includes a second test module, the second test module is used to be electrically connected to the fault board of the locomotive electronic control device, and the display panel further includes a second display module, the second display module is used to display the current output by the fault board.

5. The test system of the locomotive electronic control device according to claim 4, characterized in that The display sub-module for displaying whether the current measurement board outputs voltage is further used to display whether the adjustment board and the idle board output voltage; The display panel further includes a third display module and a fourth display module. The third display module is used to display the current of the output board, and the fourth display module is used to display the speed of the speed control board.

6. The test system for the locomotive electronic control device according to claim 5, characterized in that, At least two of the display sub-modules include a voltmeter and a power supply board display lamp. The voltmeter is used to display whether the adjustment board, the idle board and the current measurement board output voltage, and the power supply board display lamp is used to display whether the power supply board outputs voltage; The second display module is a first ammeter; the third display module is a second ammeter; The fourth display module is a mechanical display meter.

7. The test system for the locomotive electronic control device according to claim 3, wherein The output voltage of the first power conversion sub-module is 110V DC, the output voltage of the second power conversion sub-module is 12V DC, and the output voltage of the second power conversion module is 75mV DC.

8. The test system for the locomotive electronic control device according to claim 2, characterized in that, The cabinet body is provided with signal input interfaces. The signal input interfaces include a whole machine input interface and at least one single-board input interface. The whole machine input interface is used to be connected to the locomotive electronic control device. Both the first power conversion sub-module and the adjustment board test sub-module are electrically connected to at least one of the single-board input interfaces. At least one of the single-board input interfaces is used to be connected to at least one of the power supply board, the adjustment board, the idle board, and the output board.

9. The test system for the locomotive electronic control device according to any one of claims 1-8, characterized in that, The cabinet further includes a cabinet door. The lower part of the cabinet body has a receiving cavity for receiving the electrical device. The side of the receiving cavity has an opening, and the cabinet door is coverably arranged on the opening; The test system of the locomotive electronic control device further includes a first chassis and a second chassis. Both the first chassis and the second chassis are received in the receiving cavity. The test unit is arranged in the first chassis, and the power conversion unit is arranged in the second chassis.

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