Performance and durability test system for automobile electric reflector

Abstract

The invention discloses an automobile electric reflector performance and durability test system, which comprises an indicating lamp test system and a durability test system, and is characterized in that the durability test system comprises a direct current power supply control reflector test system and a DCU control reflector test system; the DC power supply control reflective mirror test system, the DCU module and the CAN / LIN communication module form a DCU control reflective mirror test system; according to the testing system, reflectors of eight stations can be tested at the same time, the rotation direction of a reflector motor, the memory position of the motor, a steering lamp, a blind area lamp, a LOGO lamp, the heating function of a lens and the anti-dazzling function can be tested, the performance and durability of a reflector indicator lamp are tested, and the severe testing efficiency is improved.

Description

Technical Field

[0001] The invention relates to a performance and durability testing system for an automobile electric reflector. Background Art

[0002] The number of cars in use has been gradually increasing, and the use of cars has gradually become intelligent. As an important component of the car, the reflector has also realized some functions such as automatic folding, anti-glare, blind spot lights, turn signals, etc., making the reflector more multifunctional; before the reflector leaves the factory or is used, it is necessary to test the various functions and usage status of the reflector to ensure the stability of use and product quality; the existing reflector test equipment or test system has certain limitations during use, and can only complete the test of a single project each time, and the test is basically completed manually, so the test efficiency is low, and to a certain extent, it affects the accuracy of the test; therefore, it is necessary to develop an intelligent automotive electric reflector performance and durability test system. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a performance and durability testing system for automotive electric mirrors which is versatile and highly intelligent and can test the rotation position of the mirror motor, the motor memory position, the turn signal, the blind spot light, the LOGO light, the lens heating function and the anti-glare function, thereby achieving the accuracy of the test data and improving the test efficiency. The system is practical and widely used.

[0004] To solve the above problems, the present invention adopts the following technical solutions: A vehicle electric reflector performance and durability test system, which can complete the reflector test of 8 stations at the same time, and can complete the test of the reflector motor rotation direction, motor memory position, turn signal, blind spot light, LOGO light, lens heating function and anti-glare function; The test system is composed of an industrial control host, a relay module 1, a relay module 2, a relay module switching channel, a 5A current acquisition module, a 500mA current acquisition module, a PWM module, a flashing module, a 5-digit display 30V / 3A linear power supply, a 6-digit display 30V / 3A linear power supply, a 5-digit display 30V / 20A high-precision switching power supply, a 30V / 20A high-precision switching power supply, a high-speed sampling card, a PLC, a DCU module and a CAN / LIN communication module; during the test, the reflector is connected to the relay module 2; The test system includes an indicator light test system and an endurance test system. The endurance test system includes a DC power supply controlled reflector test system and a DCU controlled reflector test system. The DC power supply controlled reflector test system, the DCU module and the CAN / LIN communication module constitute the DCU controlled reflector test system.

[0005] Preferably, the 5-digit display 30V / 3A linear power supply, 6-digit display 30V / 3A linear power supply, 5-digit display 30V / 20A high-precision switching power supply, 30V / 20A high-precision switching power supply, high-speed sampling card, PLC and CAN / LIN communication module are connected to the industrial control host; The CAN / LIN communication module is connected to the DCU module, and the DCU module is connected to a 30V / 20A high-precision switching power supply and a relay module; The PLC is connected to the relay module 1, the flashing module, the relay module switching channel and the relay module 2; The 5-digit display 30V / 3A linear power supply, the 6-digit display 30V / 3A linear power supply, the 5-digit display 30V / 20A high-precision switching power supply, the 30V / 20A high-precision switching power supply, and the high-speed sampling card are connected to the relay module; The relay module 1 is connected to the relay module 2; The 5-digit 30V / 3A linear power supply is connected to the PWM module, and one end of the PWM module is connected between the relay module 1 and the relay module 2; The flashing module is arranged between the relay module 1 and the relay module 2; The relay module 2, the relay module switching channel, the relay module 1, the high-speed acquisition card, and the industrial control host are connected; The relay module 2, the DCU module, the CAN / LIN communication module, and the industrial control host are connected.

[0006] Preferably, each station includes a host computer software, a sampling circuit, a switching circuit and a power module, the host computer software is integrated in the industrial control host, and the host computer software controls the operation of the entire test system; The power module consists of a 5-digit display 30V / 3A linear power supply, a 6-digit display 30V / 3A linear power supply, a 5-digit display 30V / 20A high-precision switching power supply, and a 30V / 20A high-precision switching power supply; The Hall sensor, high-speed sampling card input part, 5A current acquisition module and 500mA current acquisition module form the sampling pair; Relay module one, relay module two, relay module switching channel, PLC, and high-speed sampling card output part constitute a switching circuit.

[0007] Preferably, the sampling circuit uses a high-speed sampling card to perform uninterrupted high-speed sampling on the XY feedback voltage and motor current of each station.

[0008] Preferably, the motor memory position, that is, the test method for whether the reflector can accurately restore the position is: by sampling the memory feedback voltage and motor current from 0 to the stall state in the X direction twice in succession, and analyzing and judging the corresponding relationship between the reflector torsion angle, feedback voltage and motor rotation time through the trend of the curve.

[0009] Preferably, the rotation direction of the mirror motor, that is, the method of durability test is: adopt the 8-step requirement method for lens adjustment, that is, rotate one position in the X-axis direction and then turn to one position in the Y-axis direction, then restore the Y-axis direction, and finally restore the X-axis direction, so that the mirror can reciprocate a certain number of times according to a certain rule, and record the dynamic current and feedback voltage of the mirror during the movement.

[0010] Preferably, the test method of the indicator light test system is: setting the serial port, using a 5-digit 30V / 20A high-precision switching power supply to power the turn signal, blind spot light, LOGO light, and lens heating function of the reflector, and using a 6-digit 30V / 3A linear power supply to power the anti-glare function of the reflector; The current value of the turn signal light, blind spot light, LOGO light, and anti-glare function when powered on is collected through the 500mA current collection module; The current value when the reflector lens heating function is turned on is collected through the 5A current collection module.

[0011] Preferably, the test steps of the DC power supply controlled reflector test system are: 1) Open the host computer software; 2) Perform serial port settings and set the communication serial port; 3) Connect the reflector circuit. The reflector connection follows the 1-3-5-7 aviation interface to connect the left reflector, and the 2-4-6-8 aviation interface must be connected to the right reflector; 4) Set the power supply, PWM frequency, feedback power supply voltage, and motor power supply voltage parameters; 5) Set the test file and select a file to load. The file selection must correspond to the feedback voltage and model; 6) Set the voltage, current and test time; 7) Test the left reflector and / or the right reflector, and record and store the test data.

[0012] Preferably, the DCU controls the reflector test system test steps as follows: 1) Connect the left and right reflectors, turn on the power of the test equipment, and open the host computer software; 2) Turn on the corresponding DCU power through the power setting button and select the left and right workstations; 3) Load the scenario to be tested; 4) Perform synchronous testing on the left and right reflectors; 5) Loop execution; 6) Record and store test data.

[0013] The beneficial effects of the present invention are as follows: the functions are diverse and the degree of intelligence is high. The tester can test the rotation position of the motor of the reflector, the motor memory position, the turn signal, the blind spot light, the LOGO light, the lens heating function and the anti-glare function, etc., and achieve the accuracy of the test data and the intelligence of the test method. At the same time, it can realize the parallel operation of multiple test methods and meet the needs of manual test and automatic test. At the same time, it can complete the synchronous or step-by-step test of the reflectors of 8 workstations at one time, thereby improving the test efficiency. The present invention is practical and widely used. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below, but this does not limit the protection scope of the present invention.

[0015] Figure 1 It is a schematic diagram of the system framework of the present invention; Figure 2 This is a motor test curve diagram of the present invention. DETAILED DESCRIPTION

[0016] See also Figure 1 to Figure 2 The system is a vehicle electric reflector performance and durability test system, which can complete the reflector test of 8 stations at the same time, and can complete the test of the reflector motor rotation direction, motor memory position, turn signal, blind spot light, LOGO light, lens heating function and anti-glare function; Further, the test system is composed of an industrial control host, a relay module 1, a relay module 2, a relay module switching channel, a 5A current acquisition module, a 500mA current acquisition module, a PWM module, a flashing module, a 5-digit display 30V / 3A linear power supply, a 6-digit display 30V / 3A linear power supply, a 5-digit display 30V / 20A high-precision switching power supply, a 30V / 20A high-precision switching power supply, a high-speed sampling card, a PLC, a DCU module and a CAN / LIN communication module; during the test, the reflector is connected to the relay module 2; Furthermore, the test system includes an indicator light test system and an endurance test system, and the endurance test system includes a DC power supply controlled reflector test system and a DCU controlled reflector test system; the DC power supply controlled reflector test system, the DCU module and the CAN / LIN communication module constitute the DCU controlled reflector test system.

[0017] Further, the 5-digit display 30V / 3A linear power supply, 6-digit display 30V / 3A linear power supply, 5-digit display 30V / 20A high-precision switching power supply, 30V / 20A high-precision switching power supply, high-speed sampling card, PLC and CAN / LIN communication module are connected to the industrial control host; Further, the CAN / LIN communication module is connected to the DCU module, and the DCU module is connected to a 30V / 20A high-precision switching power supply and a relay module; Further, the PLC is connected to the relay module 1, the flashing module, the relay module switching channel and the relay module 2; Further, the 5-digit display 30V / 3A linear power supply, the 6-digit display 30V / 3A linear power supply, the 5-digit display 30V / 20A high-precision switching power supply, the 30V / 20A high-precision switching power supply, and the high-speed sampling card are connected to the relay module; Further, the relay module 1 is connected to the relay module 2; Further, the 5-digit 30V / 3A linear power supply is connected to the PWM module, and one end of the PWM module is connected between the relay module 1 and the relay module 2; Further, the flashing module is arranged between the relay module 1 and the relay module 2; Further, the relay module 2, the relay module switching channel, the relay module 1, the high-speed acquisition card, and the industrial control host are connected; Furthermore, the relay module 2, the DCU module, the CAN / LIN communication module, and the industrial control host are connected.

[0018] Furthermore, each station includes a host computer software, a sampling circuit, a switching circuit and a power module. The host computer software is integrated in the industrial control host, and the host computer software controls the operation of the entire test system; Furthermore, a 5-digit display 30V / 3A linear power supply, a 6-digit display 30V / 3A linear power supply, a 5-digit display 30V / 20A high-precision switching power supply, and a 30V / 20A high-precision switching power supply constitute the power supply module; Furthermore, the Hall sensor, the high-speed sampling card input part, the 5A current acquisition module and the 500mA current acquisition module form a sampling pair; Furthermore, the relay module 1, the relay module 2, the relay module switching channel, the PLC, and the high-speed sampling card output part constitute a switching circuit.

[0019] Furthermore, the sampling circuit uses a high-speed sampling card to perform uninterrupted high-speed sampling on the XY feedback voltage and motor current of each station.

[0020] Furthermore, the test method for the motor memory position, that is, whether the mirror can accurately restore its position, is: through two consecutive X-direction memory feedback voltage and motor current sampling from 0 to the stall state, the corresponding relationship between the mirror torsion angle, feedback voltage and motor rotation time is analyzed and judged through the trend of the curve.

[0021] Furthermore, the rotation position of the mirror motor, that is, the method of durability test is: adopt the 8-step requirement method for lens adjustment, that is, rotate one position in the X-axis direction, then turn to one position in the Y-axis direction, then restore the Y-axis direction, and finally restore the X-axis direction, so that the mirror can reciprocate a certain number of times according to a certain rule, and record the dynamic current and feedback voltage of the mirror during the movement.

[0022] Furthermore, the test method of the indicator light test system is as follows: setting the serial port, using a 5-digit 30V / 20A high-precision switching power supply to power the turn signal, blind spot light, LOGO light, and lens heating function of the reflector, and using a 6-digit 30V / 3A linear power supply to power the anti-glare function of the reflector; The current value of the turn signal light, blind spot light, LOGO light, and anti-glare function when powered on is collected through the 500mA current collection module; The current value when the reflector lens heating function is turned on is collected through the 5A current collection module.

[0023] Further, the test steps of the DC power supply controlled reflector test system are as follows: 1. Software start: open the main interface of the test software; 2. Serial port settings: Click the Settings\Serial port settings menu item to set the communication serial port; 3. Mirror connection: Before testing, the reflector to be tested should be connected. Note that the type of the reflector must follow the 1-3-5-7 aviation interface to connect the left reflector, and the 2-4-6-8 aviation interface must be connected to the right reflector; 4. Power supply setting: Before testing, you must first set the two power supply parameters of the station: station PWM frequency, feedback power supply voltage, and motor power supply voltage; setting a station can start the test of a station, click Set and Open, and you can start preparing for the test; 5. Test file setting: Select a file to load. The file selection must correspond to the feedback voltage and model; the file has nothing to do with the left and right reflectors but is related to the feedback voltage; 6. Test settings: The first two are the settings of the curve axis display part, and the third one is the maximum duration of an action. As shown in the figure above, if an action exceeds 30 seconds, the device will automatically stop and report an error, indicating that the reflector is stuck; When the reflector current exceeds 400mA, the test will automatically stop and display the current limit; 7. Test records: Test records are stored in E:\data\station number. For example, the test content of station 1 is stored in E:\data\1. Please clear the folder before testing. Click the clear function on the panel.

[0024] Further, the test steps of the DCU controlled reflector test system are: 1. Software start: open the main interface of the test software; 2. Serial port settings: Click the Settings\Serial port settings menu item to set the communication serial port; each DCU power supply corresponds to a serial port, requiring 4 CAN serial ports and one PLC serial port; 3. Mirror connection: Connect the reflector to be tested before testing. Note that the type of reflector must follow the 1-3-5-7 aviation interface to connect the left reflector, and the 2-4-6-8 aviation interface must be connected to the right reflector; 4. Power settings: For example, the power of station 1 and 2 is turned on and off at the same time. When the power is turned on, you also need to select the type of reflector (left and right reflectors). Unlike DC control, DCU control can only control one reflector, and folding can move two reflectors at the same time. If we want to use station 1, select the left reflector. If we want to use the reflector connected to station 2, select the right reflector. After selecting, click Set and Open.

[0025] 5. Test setting: Since the time from left to right is relatively long, if the time is set too short, the action may end before reaching the destination, so pay attention to the size and unit when setting the time. The process of DCU test is as follows: a. Connect the reflector, turn on the power of the test equipment, and open the software.

[0026] b. Turn on the corresponding DCU power through the power setting button and select the left and right workstations.

[0027] c. Load the scheme to be tested. The scheme file consists of middle, up, down, left, right, fold, unfold, and wait, which allows self-programming.

[0028] d. Loop execution.

[0029] 6. Test records: Test records are stored in E:\data\station number. For example, the test content of station 1 is stored in E:\data\1. Please clear the folder before testing. Click the clear function on the panel.

[0030] Further, the indicator light performance test system test steps are: 1. Software start: open the main interface of the test software; 2. Serial port settings: Click the Settings\Serial port settings menu item to set the communication serial port; at this time, the indicator light test requires 6 serial ports, namely, power supply positions 1-4 are the same power output, positions 5-8 are the same power output, and anti-glare is a separate power setting.

[0031] 3. Power supply setting: The power supply in the indicator light test is divided into three parts, 1-4 stations have one power supply (excluding glare), 5-8 stations have the second power supply (excluding glare), and 1-8 anti-glare power supply. This requires that stations 1-4 must be the same model signal lights and the power supply voltage must be the same, and the same is true for stations 5-8.

[0032] 4. Test settings: After pressing the button, if the power supply is set correctly, the setting button corresponding to the workstation can be used. After clicking the setting button, the test setting button of the corresponding workstation can be set. Click on the test setting; at this time, the power-on time and power-off time indicate the flashing setting, such as the turn signal is on for 0.1 seconds and off for 1 second. If no flashing is selected, no matter how the power-on time is set, the light will always be on and will not be controlled by the flashing time setting.

[0033] Large cycle test time, if one of the test time and stop time is set to 0, the large cycle function will be invalid. If a value is filled in for the large cycle time, for example, 1 minute, and the large cycle stop time is 2 minutes, then after flashing for 1 minute, the power will be cut off for 2 minutes. This power cut is not subject to the setting of the no flashing option. Please note that the unit of the cycle time is minutes.

[0034] The countdown time is the total test time length in minutes. The maximum and minimum current values ​​are provided for user comparison. Because there is a phenomenon of excessively high or low current during operation, it is impossible to determine whether it exceeds the limit.

[0035] 5. Start the test: After pressing the button of the corresponding workstation, the button of the workstation will display the activation status. By setting the test parameters, you can test various items of the workstation.

[0036] 6. Stop the test: Press the corresponding start button to stop the test of the entire workstation, and the stop test in the software can stop any operation in the workstation.

[0037] During the implementation of the present invention: when the DCU module is used, the relay module switches the line to the DCU interface for a while, and the acquisition data that the DCU module can communicate and read is read by the upper computer software from the DCU module (the accuracy of the data and the data speed are determined by the DCU module). If it cannot be read from the DCU module, the data is read from the acquisition circuit.

[0038] Run the test function design: The purpose of the running test is to sample the feedback voltage and motor current from 0 to the stalled state in the X direction twice in a row, analyze the trend of the curve and judge the corresponding relationship between the mirror torsion angle, feedback voltage and motor rotation time, and then determine whether the mirror can accurately restore its position. The specific method is to first use the manual button to adjust the mirror to the X or Y stalled state. X+, X-, Y+, and Y- represent the adjustment function buttons for the XY directions respectively. After pressing the button, the motor will keep moving. After adjustment, you can press Figure 2 , the middle button stops the motor. Next, click the "X direction test" or "Y direction test" button, the system will switch the circuit according to the user's choice, and the X direction motor will start a test cycle from the initial position, for example, from -X to 0 and then to +X; after the system equipment monitors the stall current, it will automatically reverse the motor until it turns back to -X, and a test cycle is considered complete. Next, the user will perform the second, third, and fourth reciprocating tests, and the software will draw multiple voltage curves of different colors or states on the interface. Because the screen needs to be exclusively occupied for large-area curve drawing during the running test, the main interface can only perform one station test.

[0039] The curve can be saved as an image file, but the data will not be saved in real time. After the software is closed, the historical records will no longer be available. Figure 2 As shown in the figure, when doing the running test, the system will conduct two consecutive tests in one direction, which are solid line and dotted line respectively, and confirm whether there is any deviation in the two measurement results through visual comparison. The test is divided into two directions, X and Y, and the solid line and dotted line are the results of the first and second test respectively. The X-axis is the test time in seconds, and the Y-axis is the memory voltage value. The difference in the shape of the two test voltage curves is used to determine whether the consistency of the product to be tested is good.

[0040] The main interface of the upper computer software of the present invention simultaneously displays the working status of 8 stations, and each station simultaneously displays 3 curves, namely 2 memory voltage curves and 1 current curve. Each station can independently set the working mode (parameter setting), start or end the test. During the test, if the current exceeds the upper limit current set by the user, the test will be forced to stop and a line of error prompts with a timestamp will be added to the error column; an independent manual adjustment panel is provided, and the angle of the corresponding mirror can be adjusted separately through buttons; there are two setting buttons, namely endurance test and manual test.

[0041] The host computer software test interface corresponds to 8 stations. When you need to view a station in detail, you can click on the icon of a station, and a pop-up box will appear to enlarge the test interface of a station. The data curve is also displayed in real time. The saved historical data can be appropriately reduced. In the host computer software, you can fill in the memory voltage value or the specific angle value (the relationship between the angle and the voltage must be filled in).

[0042] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A vehicle electric reflector performance and durability testing system, characterized by: The system can complete the reflector test of 8 stations at the same time, and can complete the test of the reflector motor rotation direction, motor memory position, turn signal, blind spot light, LOGO light, lens heating function and anti-glare function; The test system is composed of an industrial control host, a relay module 1, a relay module 2, a relay module switching channel, a 5A current acquisition module, a 500mA current acquisition module, a PWM module, a flashing module, a 5-digit display 30V / 3A linear power supply, a 6-digit display 30V / 3A linear power supply, a 5-digit display 30V / 20A high-precision switching power supply, a 30V / 20A high-precision switching power supply, a high-speed sampling card, a PLC, a DCU module and a CAN / LIN communication module; during the test, the reflector is connected to the relay module 2; The test system includes an indicator light test system and an endurance test system. The endurance test system includes a DC power supply controlled reflector test system and a DCU controlled reflector test system. The DC power supply controlled reflector test system, the DCU module and the CAN / LIN communication module constitute the DCU controlled reflector test system.

2. The automotive electric reflector performance and durability testing system according to claim 1, characterized in that: The 5-digit display 30V / 3A linear power supply, 6-digit display 30V / 3A linear power supply, 5-digit display 30V / 20A high-precision switching power supply, 30V / 20A high-precision switching power supply, high-speed sampling card, PLC and CAN / LIN communication module are connected to the industrial control host; The CAN / LIN communication module is connected to the DCU module, and the DCU module is connected to a 30V / 20A high-precision switching power supply and a relay module; The PLC is connected to the relay module 1, the flashing module, the relay module switching channel and the relay module 2; The 5-digit display 30V / 3A linear power supply, the 6-digit display 30V / 3A linear power supply, the 5-digit display 30V / 20A high-precision switching power supply, the 30V / 20A high-precision switching power supply, and the high-speed sampling card are connected to the relay module; The relay module 1 is connected to the relay module 2; The 5-digit 30V / 3A linear power supply is connected to the PWM module, and one end of the PWM module is connected between the relay module 1 and the relay module 2; The flashing module is arranged between the relay module 1 and the relay module 2; The relay module 2, the relay module switching channel, the relay module 1, the high-speed acquisition card, and the industrial control host are connected; The relay module 2, the DCU module, the CAN / LIN communication module, and the industrial control host are connected.

3. The automotive electric reflector performance and durability testing system according to claim 2, characterized in that: Each station includes host computer software, sampling circuit, switching circuit and power module. The host computer software is integrated in the industrial control host and controls the operation of the entire test system. The power module consists of a 5-digit display 30V / 3A linear power supply, a 6-digit display 30V / 3A linear power supply, a 5-digit display 30V / 20A high-precision switching power supply, and a 30V / 20A high-precision switching power supply; The Hall sensor, high-speed sampling card input part, 5A current acquisition module and 500mA current acquisition module form the sampling pair; Relay module one, relay module two, relay module switching channel, PLC, and high-speed sampling card output part constitute a switching circuit.

4. The automotive electric reflector performance and durability testing system according to claim 3, characterized in that: The sampling circuit uses a high-speed sampling card to perform uninterrupted high-speed sampling on the XY feedback voltage and motor current of each station.

5. The automotive electric reflector performance and durability testing system according to claim 1, characterized in that: The test method for the motor memory position, that is, whether the reflector can accurately restore its position, is as follows: by sampling the memory feedback voltage and motor current from 0 to the stalled state in the X direction twice in a row, and by analyzing and judging the corresponding relationship between the reflector torsion angle, feedback voltage and motor rotation time through the trend of the curve.

6. The automotive electric reflector performance and durability testing system according to claim 1, characterized in that: The rotation direction of the mirror motor, that is, the method of durability test is: adopt the 8-step requirement method for lens adjustment, that is, rotate one position in the X-axis direction, then turn to one position in the Y-axis direction, then restore the Y-axis direction, and finally restore the X-axis direction, so that the mirror can reciprocate a certain number of times according to a certain rule, and record the dynamic current and feedback voltage of the mirror during the movement.

7. The automotive electric reflector performance and durability testing system according to claim 1, characterized in that: The test method of the indicator light test system is as follows: set up the serial port, use a 5-digit 30V / 20A high-precision switching power supply to power the turn signal, blind spot light, LOGO light, and lens heating function of the reflector, and use a 6-digit 30V / 3A linear power supply to power the anti-glare function of the reflector; The current value of the turn signal light, blind spot light, LOGO light, and anti-glare function when powered on is collected through the 500mA current collection module; The current value when the reflector lens heating function is turned on is collected through the 5A current collection module.

8. The automotive electric reflector performance and durability testing system according to claim 1, characterized in that: The test steps of the DC power supply controlled reflector test system are as follows: 1) Open the host computer software; 2) Perform serial port settings and set the communication serial port; 3) Connect the reflector circuit. The reflector connection follows the 1-3-5-7 aviation interface to connect the left reflector, and the 2-4-6-8 aviation interface must be connected to the right reflector; 4) Set the power supply, PWM frequency, feedback power supply voltage, and motor power supply voltage parameters; 5) Set the test file and select a file to load. The file selection must correspond to the feedback voltage and model; 6) Set the voltage, current and test time; 7) Test the left reflector and / or the right reflector, and record and store the test data.

9. The automotive electric reflector performance and durability testing system according to claim 1, characterized in that: The test steps of the DCU controlled reflector test system are as follows: 1) Connect the left and right reflectors, turn on the power of the test equipment, and open the host computer software; 2) Turn on the corresponding DCU power through the power setting button and select the left and right workstations; 3) Load the scenario to be tested; 4) Perform synchronous testing on the left and right reflectors; 5) Loop execution; 6) Record and store test data.

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