Test method and test system

Abstract

This invention discloses a testing method and system, relating to the field of automotive parts testing technology. The testing method includes: setting environmental parameters of a simulation chamber; performing a first preset number of opening and closing operations on a vehicle door using an opening and closing device; performing the opening and closing operations on the vehicle door using the opening and closing device, and capturing and detecting images of the open and closed positions of the vehicle door using an image acquisition device; if an abnormality is detected in the images of the open and closed positions of the vehicle door, a test failure signal is issued through a display device, and the opening and closing device is shut down. This invention utilizes a testing system simulation chamber to simulate different working conditions. The vehicle door is continuously opened and closed using the opening and closing device, and the image acquisition device captures and detects the door position. If a problem is detected in the door position, the opening and closing device is shut down, ending the opening and closing operation and issuing a test failure signal, thus achieving automatic detection. Furthermore, in the event of a test abnormality, the test is automatically terminated by shutting down the opening and closing device.

Description

Technical Field

[0001] This invention relates to the field of automotive parts testing technology, and in particular to a testing method and testing system. Background Technology

[0002] With the increasing popularity of new energy and intelligent vehicles, hidden and electric door handles are widely used due to their strong visual appeal and technological elements. However, in recent years, many traffic accidents have highlighted the risk that electric and hidden door handles may have delayed response or even failure in emergency situations, so it is necessary to conduct durability tests on door handles under different environments.

[0003] Because the vehicle is located in a closed simulation chamber, and the internal environment (too high or too low temperature, too much dust, etc.) is not suitable for staff to enter for inspection, abnormalities cannot be detected in time during the test, and the test cannot be stopped automatically and in time, thus failing to effectively verify the durability of the car's hidden door handle. Summary of the Invention

[0004] The main objective of this invention is to propose a testing method and a testing system that can achieve automated testing and automatically terminate the test when an anomaly occurs.

[0005] To achieve the above objectives, the testing method proposed in this invention is applied to a testing system for detecting the opening and closing durability of a car door handle. The testing system includes: a simulation chamber, an opening and closing device, an image acquisition device, a prompting device, and a control device. The simulation chamber is used to simulate the vehicle's operating environment. The opening and closing device is used to pull the door handle to open the car door and to push the car door to close it. The image acquisition device is used to capture images of the car door. The prompting device is used to issue a prompting signal. The control device is electrically connected to the simulation chamber, the opening and closing device, the image acquisition device, and the prompting device. The testing method includes the following steps: Set the environmental parameters of the simulation chamber; The door is opened and closed a first preset number of times using the opening and closing device; The door is opened and closed by the opening and closing device, and the image acquisition device captures and detects images of the open and closed positions of the door. When the images of the open and closed positions of the car door are detected to be abnormal, a test failure signal is sent through the display device, and the opening and closing device is shut down.

[0006] In one embodiment, the environmental parameters include: temperature, humidity, light intensity, and dust concentration.

[0007] In one embodiment, the opening and closing device includes: a rotating column that rotates axially in the vertical direction, a pull rod and a push rod fixedly installed on the rotating column, and a drive motor drivenly connected to the rotating column. The pull rod is connected to the door handle via a pull rope, and the end of the push rod is used to push the door. The steps for opening and closing the door include: Send an unlock signal to unlock the vehicle door; The drive motor is controlled to rotate forward to open the vehicle door; The drive motor is controlled to rotate forward to close the car door.

[0008] In one embodiment, the opening and closing device further includes a tension sensor disposed between the pull rod and the pull rope; the step of controlling the drive motor to rotate forward to open the vehicle door includes: When the tension value of the tension sensor exceeds the preset pressure value, the drive motor is turned off, and a test failure signal is issued through the prompting device.

[0009] In one embodiment, the simulation chamber includes a collision device, the collision device including a movable member disposed in a front-rear direction, and an acceleration motor drivenly connected to the movable member, the acceleration motor being electrically connected to the controller; The opening and closing operation of the vehicle door is performed by the opening and closing device, and before the image acquisition device captures and detects the open and closed positions of the vehicle door, the following steps are also included: Control the acceleration motor to cause the moving part to impact the vehicle.

[0010] In one embodiment, after performing the opening and closing operation on the vehicle door via the opening and closing device, and capturing and detecting images of the open and closed positions of the vehicle door via the image acquisition device, the method further includes: When the images of the open and closed positions of the car door are normal and the number of opening and closing operations is less than the second preset number, return to the step "perform the opening and closing operation of the car door a first preset number of times through the opening and closing device"; Wherein, the first preset number of times is less than the second preset number of times.

[0011] In one embodiment, after performing the opening and closing operation on the vehicle door via the opening and closing device, and capturing and detecting images of the open and closed positions of the vehicle door via the image acquisition device, the method further includes: When the images of the open and closed positions of the car door are normal and the number of door opening and closing operations is greater than or equal to the second preset number, the prompting device issues a signal indicating that the test is qualified.

[0012] The present invention also proposes a testing system, the testing system comprising: The simulation chamber is used to simulate the vehicle's operating environment; An opening and closing device, the opening and closing device being used to pull the door handle to open the door, and to push the door to close the door; An image acquisition device is used to capture images of the vehicle door; A prompting device used to issue prompting signals; The control device is electrically connected to the simulation chamber, the opening and closing device, the image acquisition device, and the prompting device, respectively. The control device includes a memory, a processor, and a test program stored in the memory and capable of running on the processor. The control program of the test system is configured as a test method. The test method includes: Set the environmental parameters of the simulation chamber; The door is opened and closed a first preset number of times using the opening and closing device; The door is opened and closed by the opening and closing device, and the image acquisition device captures and detects images of the open and closed positions of the door. When the images of the open and closed positions of the car door are detected to be abnormal, a test failure signal is sent through the display device, and the opening and closing device is shut down.

[0013] In one embodiment, the testing system further includes: An opening and closing device is installed inside the simulation chamber. The opening and closing device includes: a rotating column that rotates axially in the vertical direction, a pull rod and a push rod fixedly installed on the rotating column, and a drive motor and a tension sensor that are drivenly connected to the rotating column. The pull rod is connected to the door handle through a pull rope, the tension sensor is disposed between the pull rod and the pull rope, and the end of the push rod is used to push the door. The collision device includes a movable component that is movably disposed in the front-rear direction, and an acceleration motor that is driven and connected to the movable component, the acceleration motor being electrically connected to the controller.

[0014] In one embodiment, the opening and closing device further includes: A roller, which is rotatably mounted on the end of the push rod, is used to abut against the car door; Two limiting blocks are fixedly disposed on the periphery of the rotating column and spaced apart from the rotating column, thereby limiting the rotational stroke of the rotating column between the two limiting blocks.

[0015] The technical solution of this invention uses a simulation chamber of a testing system to simulate different working conditions. The door is continuously opened and closed by an opening and closing device, and the door position is captured and detected by an image acquisition device. When a problem is detected in the door position, the opening and closing device is closed to end the door opening and closing operation and a test failure signal is issued. This achieves the technical effect of automatic detection and automatic termination of the test when an abnormality occurs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a flowchart illustrating the first embodiment of the testing method provided by the present invention; Figure 2 This is a flowchart illustrating the second embodiment of the testing method provided by the present invention; Figure 3 This is a flowchart illustrating the third embodiment of the testing method provided by the present invention; Figure 4 This is a flowchart illustrating the fourth embodiment of the testing method provided by the present invention; Figure 5 This is a flowchart illustrating the fifth embodiment of the testing method provided by the present invention; Figure 6 This is a flowchart illustrating the sixth embodiment of the testing method provided by the present invention; Figure 7 This is a schematic diagram of the structure of the testing system provided by the present invention; Figure 8 for Figure 7 A partial structural diagram of the testing system at the opening and closing device location: Figure 9 for Figure 7 A partial structural diagram of the test system at the location of the collision device.

[0018] Explanation of icon numbers: 100. Testing system; 1. Simulation chamber; 2. Opening and closing device; 21. Rotating column; 22. Pull rod; 23. Push rod; 24. Pull rope; 25. Drive motor; 26. Tension sensor; 27. Roller; 28. Limit block; 3. Image acquisition device; 4. Control device; 5. Collision device; 51. Acceleration motor; 52. Moving parts.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0023] Because the vehicle is located in a sealed simulation chamber, and the internal environment (excessively high or low temperatures, high dust levels, etc.) is not suitable for personnel to enter and inspect, abnormalities cannot be detected in time during the test, and the test cannot be automatically stopped in a timely manner, thus failing to effectively verify the durability of the car's concealed door handle. This invention proposes a testing method.

[0024] Please see Figure 1 and Figure 7In one embodiment of the present invention, the testing method is applied to a testing system 100 to detect the opening and closing durability of a car door handle. The testing system 100 includes: a simulation chamber 1, an opening and closing device 2, an image acquisition device 3, a prompting device, and a control device 4. The simulation chamber 1 is used to simulate the vehicle usage environment. The opening and closing device 2 is used to pull the car door handle to open the car door and to push the car door to close the car door. The image acquisition device 3 is used to take pictures of the car door. The prompting device is used to issue a prompting signal. The control device 4 is electrically connected to the simulation chamber 1, the opening and closing device 2, the image acquisition device 3, and the prompting device, respectively. The technical solution of this invention uses a simulation chamber 1 of the testing system 100 to simulate different working conditions. A vehicle is placed inside the simulation chamber 1, and the temperature, humidity, air pressure, dust concentration, and light intensity inside the chamber can be adjusted to subject the vehicle to different operating conditions. The opening and closing device 2 is at least partially movable. During its movement, the door handle can be pulled to open the door, and one side of the door can be pushed to close it. To detect whether the door position is reasonable when the opening and closing device 2 opens the door to its maximum angle, and whether the door position is reasonable when the opening and closing device 2 closes the door, an image acquisition device 3 is provided corresponding to the vehicle detection position. The image acquisition device 3 includes a camera, which analyzes the captured images to determine whether the door opening and closing is appropriate and reasonable. One method is to obtain the angle between the door and the vehicle body from the image and determine if the opening angle is within a reasonable range to identify any image abnormalities. Another method is to pre-capture images of the door when it is normally open and normally closed, and then compare these images with the normal images to determine if the difference between the two images is within a reasonable range to identify any image abnormalities. When an abnormality is detected in the position of the car door in the image, the test is stopped, that is, the opening and closing device 2 is turned off, the door opening and closing operation is stopped, and a prompt signal is issued through the prompting device, including an audible alarm signal, a screen pop-up signal, and a text message signal.

[0025] The test method steps of the test system 100 are as follows: Figure 1 , Figure 1 This is a flowchart illustrating a first embodiment of a testing method according to the present invention.

[0026] The testing method includes the following steps: Step S1: Set the environmental parameters of the simulation chamber 1; Step S2: Perform a first preset number of opening and closing operations on the car door using the opening and closing device 2; Step S4: Perform the opening and closing operation on the car door through the opening and closing device 2, and capture and detect images of the open and closed positions of the car door through the image acquisition device 3; Step S5: When the images of the open and closed positions of the car door are detected to be abnormal, a test failure signal is sent through the display device, and the opening and closing device 2 is turned off.

[0027] The door is continuously opened and closed by the opening and closing device 2, and the door position is captured and detected by the image acquisition device 3. When a problem is detected in the door position, the opening and closing device 2 is closed to end the door opening and closing operation and a test failure signal is issued, thereby achieving automatic detection and automatically ending the test when an abnormality occurs.

[0028] For the specific structure of the opening and closing device 2, please refer to one embodiment. Figure 8 The opening and closing device 2 includes: a rotating column 21 that rotates axially in the vertical direction, a pull rod 22 and a push rod 23 fixedly installed on the rotating column 21, and a drive motor 25 drivenly connected to the rotating column 21. The pull rod 22 is connected to the door handle through a pull rope 24, and the end of the push rod 23 is used to push the door. That is, the drive motor 25 can rotate forward to make the pull rod 22 pull the pull rope 24, thereby pulling the door handle to open the door; and the motor can rotate in reverse to make the push rod 23 push one side of the door to close the door.

[0029] The test method steps of the test system 100 are as follows: Figure 2 , Figure 2 This is a flowchart illustrating a second embodiment of a testing method according to the present invention.

[0030] The steps for opening and closing the door include: Step S21: Send an unlock signal to unlock the vehicle door; Step S22: Control the drive motor 25 to rotate forward to open the car door; Step S23: Control the drive motor 25 to rotate forward to close the car door.

[0031] Since the car door needs to be unlocked manually by pressing the door unlock button, or automatically by the control device 4 sending an unlock signal to the door handle, the door can then be opened normally by the opening and closing device 2. A mechanical device can be installed on the inside of the door to press the door unlock button. The unlock signal from the controller can be sent to the mechanical device, causing it to press the door unlock button, thus detecting whether manual unlocking is normal. The unlock signal from the controller can also be sent directly to the door handle to detect whether electrical unlocking is normal. In one door opening and closing operation, the unlock signal can be sent to the mechanical device; in the next operation, it can be sent directly to the door handle. This alternately verifies whether manual and automatic unlocking are normal. After unlocking the door, the drive motor 25 rotates forward to open the door to its final position. Then, the drive motor 25 stops, and after a set interval, the door closes. After the drive motor 25 rotates backward to close the door to its final position, the cycle repeats, achieving continuous automatic opening and closing of the door. Throughout the entire cyclic test, after each door opening and closing action, the image acquisition device 3 will capture an image of the door's position. The captured image will be compared with the preset qualified position parameters to determine whether the door position meets the requirements. If the comparison result exceeds the qualified range, the power supply to the drive motor 25 will be immediately cut off, the subsequent cyclic test will be stopped, and a test failure prompt signal will be output to facilitate the staff to promptly investigate abnormal door positions.

[0032] When the door unlocking is abnormal, the drive motor 25 rotates in the forward direction and cannot drive the pull rope 24 to open the door. If the door is forcibly opened, it will damage the opening and closing device 2 or the door handle.

[0033] The opening and closing device 2 also includes a tension sensor 26, which is disposed between the pull rod 22 and the pull rope 24; The test method steps of the test system 100 are as follows: Figure 3 , Figure 3 This is a flowchart illustrating a third embodiment of a testing method according to the present invention.

[0034] Step S22 includes: Step S221: When the tension value of the tension sensor 26 is greater than the preset pressure value, the drive motor 25 is turned off, and a test failure signal is issued through the prompting device.

[0035] By using the tension sensor 26 to detect the tension on the pull rope 24 in real time, the motor can be stopped in time when the tension on the pull rope 24 increases abnormally due to unlocking abnormality, thus avoiding irreversible structural damage to the test piece caused by forced pulling, further improving the safety of the test process, and also facilitating more accurate identification of the fault type in the unlocking process.

[0036] In daily life, when a vehicle collision occurs, it is necessary to activate the emergency escape mechanism. To address this scenario, it is necessary to simulate whether the vehicle door opening and closing status is normal after a collision, in order to improve the vehicle's safety performance.

[0037] The simulation chamber 1 includes a collision device 5. Please refer to [link / reference]. Figure 9 The collision device 5 includes a movable member 52 that is movably arranged in the front-rear direction, and an acceleration motor 51 that is driven and connected to the movable member 52. The acceleration motor 51 is electrically connected to the controller. Specifically, the acceleration motor 51 drives the rope wheel to rotate, and a traction rope is wound around the circumference of the rope wheel. The free end of the traction rope is connected to the movable member 52. When the acceleration motor 51 rotates, it pulls the movable member 52 toward the vehicle by tightening the traction rope, thereby accelerating the collision.

[0038] The test method steps of the test system 100 are as follows: Figure 4 , Figure 4 This is a flowchart illustrating the fourth embodiment of a testing method according to the present invention.

[0039] Step S4 is preceded by: Step S3: Control the acceleration motor 51 to cause the moving part 52 to impact the vehicle.

[0040] After the moving part 52 completes the impact on the vehicle, the controller records various parameters of the impact process, and then proceeds to step S4 to test the door opening and closing device 2. After the impact, the test system 100 can detect whether the door can be unlocked and pulled normally after the collision based on a preset program, thereby verifying whether the safety performance of the door after the collision meets the design requirements. If abnormal tension or opening and closing jamming occurs during the test, the test system 100 will stop the test in time and output the corresponding fault prompt, helping R&D personnel to quickly locate the problems in the door structure after the vehicle collision and optimize the vehicle safety design.

[0041] In the durability testing of car door handles, the doors undergo numerous opening and closing operations. If images were captured for each opening and closing operation, it would require a significant amount of time, severely impacting testing efficiency. Therefore, a sampling inspection method is used to shorten the testing time.

[0042] The test method steps of the test system 100 are as follows: Figure 5 , Figure 5 This is a flowchart illustrating the fifth embodiment of a testing method according to the present invention.

[0043] After step S4, the following also includes: Step S6: When the images of the open and closed positions of the car door are normal and the number of opening and closing operations is less than the second preset number, return to step "perform the opening and closing operation of the car door a first preset number of times through the opening and closing device 2"; Wherein, the first preset number of times is less than the second preset number of times.

[0044] In other words, a door position image is captured for status detection only after the first preset number of door opening and closing operations are completed. This eliminates the need for repeated detection, allowing for timely detection of structural deformation, jamming, and other anomalies during door opening and closing, while significantly reducing the frequency of image detection, shortening the overall test time, effectively improving the efficiency of durability testing, and reducing the operational wear and tear on the testing equipment. If an image anomaly is detected, or if the cumulative number of door opening and closing operations reaches the second preset number, the durability test is terminated, and the corresponding test results are output for R&D personnel to analyze the lifespan and structural reliability of the door handle.

[0045] The test method steps of the test system 100 are as follows: Figure 6 , Figure 6 This is a flowchart illustrating the sixth embodiment of a testing method of the present invention.

[0046] After step S4, the following also includes: Step S7: When the images of the open and closed positions of the car door are normal and the number of door opening and closing operations is greater than or equal to the second preset number, a test pass signal is issued through the prompting device.

[0047] This embodiment determines that the door handle structure passes the durability test by accumulating a second preset number of door opening and closing operations without detecting any image abnormalities. The automatic issuance of a pass signal via a notification device allows test personnel to obtain the test results immediately, eliminating the need for continuous manual monitoring and effectively reducing manual monitoring costs while increasing the automation level of the test.

[0048] The present invention also proposes a testing system 100, which includes a simulation chamber 1, an opening and closing device 2, an image acquisition device 3, a prompting device, and a control device 4. The control device 4 is electrically connected to the simulation chamber 1, the opening and closing device 2, the image acquisition device 3, and the prompting device, respectively. The control device 4 includes a memory, a processor, and a test program stored in the memory and executable on the processor. The control program of the testing system 100 is configured as a testing method. The specific steps of this test method are as described in the above embodiments. Since this test method adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be repeated here.

[0049] The testing system 100 further includes: an opening and closing device 2 and a collision device 5; the opening and closing device 2 is installed inside the simulation chamber 1, and the opening and closing device 2 includes: a rotating column 21 that rotates axially in the up-down direction, a pull rod 22 and a push rod 23 fixedly installed on the rotating column 21, and a drive motor 25 and a tension sensor 26 that are drivenly connected to the rotating column 21. The pull rod 22 is connected to the door handle through a pull rope 24, the tension sensor 26 is disposed between the pull rod 22 and the pull rope 24, and the end of the push rod 23 is used to push the door; the collision device 5 includes a movable part 52 that is movably arranged in the front-back direction, and an acceleration motor 51 that is drivenly connected to the movable part 52. The acceleration motor 51 is electrically connected to the controller.

[0050] During operation, the control device 4 sends a control signal to the drive motor 25, which in turn drives the rotating column 21 to rotate, causing the pull rod 22 to pull the pull rope 24, thereby pulling the door handle to complete the door opening action. During this process, the tension sensor 26 can collect the tension value of the pull rope 24 in real time and feed it back to the control device 4 to prevent damage to the opening and closing device 2 or the door handle due to excessive tension caused by the door not unlocking properly. After the door opening action is completed, the rotating column 21 continues to rotate in the opposite direction, driving the push rod 23 to move towards the door, and the end of the push rod 23 pushes the door to complete the door closing action. When it is necessary to test the collision performance of the door closing, the acceleration motor 51 drives the moving part 52 to move towards the door in the front-to-back direction, accelerates to a set speed, and then impacts the door to simulate different door closing collision scenarios, thus completing the door performance test. The entire process does not require the tester to manually operate the door opening and closing, improving both safety and test stability.

[0051] To prevent the door from being scratched by the end of the push rod 23, the opening and closing device 2 also includes a roller 27, which is rolled on the end of the push rod 23 to abut against the door. To limit the rotation angle of the rotating column 21, the opening and closing device 2 also includes two limiting blocks 28, which are fixedly disposed around the rotating column 21 and spaced apart from it. The two limiting blocks 28 restrict the rotation stroke of the rotating column 21. When the rotating column 21 completes the opening or closing action, it will be stopped by the corresponding limiting block 28 at the corresponding position, preventing the rotating column 21 from overtraveling and causing misalignment or jamming between components, or damage to transmission components such as the pull rope 24 and pull rod 22. This further improves the stability and service life of the device. In actual assembly, the distance between the two limiting blocks 28 can be adjusted according to the required rotation stroke of the door for different vehicle models, adapting to different testing requirements, and the adjustment is flexible and convenient.

[0052] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A test method applied to a test system for detecting durability of opening and closing of a door handle, characterized by, The testing system includes: a simulation chamber, an opening and closing device, an image acquisition device, a prompting device, and a control device. The simulation chamber is used to simulate the vehicle's operating environment. The opening and closing device is used to pull the door handle to open the door and to push the door to close it. The image acquisition device is used to take pictures of the door. The prompting device is used to issue prompt signals. The control device is electrically connected to the simulation chamber, the opening and closing device, the image acquisition device, and the prompting device. The testing method includes the following steps: Set the environmental parameters of the simulation chamber; The door is opened and closed a first preset number of times using the opening and closing device; The door is opened and closed by the opening and closing device, and images of the open and closed positions of the door are captured and detected by the image acquisition device. When the images of the open and closed positions of the car door are detected to be abnormal, a test failure signal is sent through the display device, and the opening and closing device is shut down.

2. The test method of claim 1, wherein, The environmental parameters include: temperature, humidity, light intensity, and dust concentration.

3. The test method of claim 1, wherein, The opening and closing device includes: a rotating column that rotates axially in the up-down direction, a pull rod and a push rod fixedly installed on the rotating column, and a drive motor drivenly connected to the rotating column. The pull rod is connected to the door handle via a pull rope, and the end of the push rod is used to push the door. The steps for opening and closing the door include: Send an unlock signal to unlock the vehicle door; The drive motor is controlled to rotate forward to open the vehicle door; The drive motor is controlled to rotate forward to close the car door.

4. The test method of claim 3, wherein, The opening and closing device further includes a tension sensor, which is disposed between the pull rod and the pull rope; the step of controlling the drive motor to rotate forward to open the car door includes: When the tension value of the tension sensor exceeds the preset pressure value, the drive motor is turned off, and a test failure signal is issued through the prompting device.

5. The test method of claim 1, wherein, The simulation chamber includes a collision device, which includes a movable component that moves along the front-to-back direction, and an acceleration motor that is driven by the movable component. The acceleration motor is electrically connected to the controller. The opening and closing operation of the vehicle door is performed by the opening and closing device, and before the image acquisition device captures and detects the open and closed positions of the vehicle door, the following steps are also included: Control the acceleration motor to cause the moving part to impact the vehicle.

6. The test method as described in claim 1, characterized in that, After the steps of opening and closing the car door using the opening and closing device, and capturing and detecting images of the open and closed positions of the car door using the image acquisition device, the method further includes: When the images of the open and closed positions of the car door are normal and the number of opening and closing operations is less than the second preset number, return to the step "perform the opening and closing operation of the car door a first preset number of times through the opening and closing device"; Wherein, the first preset number of times is less than the second preset number of times.

7. The test method as described in claim 1, characterized in that, After the steps of opening and closing the car door using the opening and closing device, and capturing and detecting images of the open and closed positions of the car door using the image acquisition device, the method further includes: When the images of the open and closed positions of the car door are normal and the number of door opening and closing operations is greater than or equal to the second preset number, the prompting device issues a signal indicating that the test is qualified.

8. A testing system, characterized in that, The testing system includes: The simulation chamber is used to simulate the vehicle's operating environment; An opening and closing device, the opening and closing device being used to pull the door handle to open the door, and to push the door to close the door; An image acquisition device is used to capture images of the vehicle door; A prompting device used to issue prompting signals; A control device is electrically connected to the simulation chamber, the opening and closing device, the image acquisition device, and the prompting device, respectively. The control device includes a memory, a processor, and a test program stored in the memory and executable on the processor. The control program of the test system is configured to implement the test method as described in any one of claims 1 to 7.

9. The testing system as described in claim 8, characterized in that, The testing system also includes: An opening and closing device is installed inside the simulation chamber. The opening and closing device includes: a rotating column that rotates axially in the vertical direction, a pull rod and a push rod fixedly installed on the rotating column, and a drive motor and a tension sensor that are drivenly connected to the rotating column. The pull rod is connected to the door handle through a pull rope, the tension sensor is disposed between the pull rod and the pull rope, and the end of the push rod is used to push the door. The collision device includes a movable component that is movably disposed in the front-rear direction, and an acceleration motor that is driven and connected to the movable component, the acceleration motor being electrically connected to the controller.

10. The testing system as described in claim 9, characterized in that, The opening and closing device further includes: A roller, which is rotatably mounted on the end of the push rod, is used to abut against the car door; Two limiting blocks are fixedly disposed on the periphery of the rotating column and spaced apart from the rotating column, thereby limiting the rotational stroke of the rotating column between the two limiting blocks.

Images