A window anti-pinch function automation test circuit and device

Abstract

This application relates to an automated testing circuit and device for the anti-pinch function of vehicle windows, belonging to the technical field of vehicle testing. It includes a controller, a window motor, multiple sensors, a relay K3, and a host computer. The host computer is electrically connected to the first communication terminal of the controller via a first communication terminal. The first connection terminal of the controller is electrically connected to contact K31 of relay K3, contact K32 of relay K3 is electrically connected to one end of the window motor, and the control terminal of relay K3 is controlled and connected to the third communication terminal of the host computer. The output terminals of the multiple sensors are all electrically connected to the third communication terminal of the host computer. This application improves the testing efficiency of the anti-pinch function of vehicle windows.

Description

Technical Field

[0001] This application relates to the technical field of vehicle testing, and in particular to an automated testing circuit and device for the anti-pinch function of vehicle windows. Background Technology

[0002] In the automotive manufacturing industry, the window system is a crucial component, and its safety and reliability have always been a major concern. With the continuous development of the automotive industry, the requirements for anti-pinch window functions are becoming increasingly stringent. Anti-pinch windows effectively prevent passengers from being pinched during the closing process, significantly improving passenger safety. Simultaneously, the development of automated testing technology has provided more efficient and accurate methods for testing anti-pinch window functions, contributing to improved quality and efficiency in automobile production.

[0003] Previously, testing the anti-pinch function of vehicle windows was typically done manually. Testers had to manually operate the window and determine if it had the anti-pinch function through direct observation or simple tools. However, manual testing is inefficient and inaccurate, failing to meet the needs of large-scale production. Semi-automated testing equipment, on the other hand, has limited functionality and cannot comprehensively and accurately test the anti-pinch function, making it difficult to guarantee its reliability and stability. Utility Model Content

[0004] To improve the testing efficiency of the anti-pinch function of vehicle windows, this application provides an automated testing circuit and device for the anti-pinch function of vehicle windows.

[0005] On the one hand, the automated testing circuit for the anti-pinch function of a car window provided in this application adopts the following technical solution: An automated testing circuit for an anti-pinch function of a vehicle window includes a controller, a window motor, multiple sensors, a relay K3, and a host computer. The host computer is electrically connected to the first communication terminal of the controller via a first communication terminal. The first connection terminal of the controller is electrically connected to the K31 contact of the relay K3, the K32 contact of the relay K3 is electrically connected to one end of the window motor, and the control terminal of the relay K3 is controlled to be connected to the third communication terminal of the host computer. The output terminals of the multiple sensors are all electrically connected to the third communication terminal of the host computer.

[0006] By adopting the above technical solution, the host computer and the controller can communicate to transmit regular commands; the host computer can control the on and off of relay K3, and control the forward and reverse rotation of the window motor in conjunction with the high and low level output of the controller; the controller can also control the forward and reverse rotation time of the window motor by controlling the time of outputting high and low levels, thereby controlling the window lifting stroke; the sensor can transmit information to the host computer to assist the host computer in judging the window position.

[0007] Preferably, the system also includes a relay K2 and a high-power resistor R1. The second connection terminal of the controller is electrically connected to the K21 contact of the relay K2, the K22 contact of the relay K2 is electrically connected to the first connection terminal of the controller through the high-power resistor R1, and the control terminal of the relay K2 is controlled to be connected to the third communication terminal of the host computer.

[0008] By adopting the above technical solution, when the motor starts, the host computer controls the relay K2 to be energized, so that the high-power resistor R1 is connected in the circuit. This can prevent the window motor from starting due to stalling or mechanical jamming, which could cause excessive current and damage the controller or power supply. After a short delay, the host computer controls the relay K2 to be de-energized, so that the window motor can work normally.

[0009] Preferably, the system also includes a relay K1, with the second communication terminal of the host computer electrically connected to the K11 contact of the relay K1, the K12 contact of the relay K1 electrically connected to the first communication terminal of the controller, and the control terminal of the relay K1 being controlled and connected to the host computer.

[0010] By adopting the above technical solution, the host computer can control the on / off state of relay K1 to disconnect from the controller under normal circumstances to prevent reverse interference, and send high-priority commands when needed.

[0011] On the other hand, the automated testing device for the anti-pinch function of vehicle windows provided in this application adopts the following technical solution: An automated testing device for the anti-pinch function of a vehicle window further includes a test cabinet and a vehicle window test module; the controller, relay, high-power resistor and host computer are all located in the test cabinet, the vehicle window test module includes a support frame and a vehicle window moving component, a plurality of sensors are mounted on the support frame, and the vehicle window moving component includes a vehicle window motor, and the plurality of sensors are arranged along the moving direction of the vehicle window moving component.

[0012] By adopting the above technical solution, the test circuit is integrated into the test cabinet and the window test module to form a complete test device, which is convenient for operation and maintenance. The support frame and window moving component in the window test module simulate the movement of a real window, and the sensors are arranged along the movement direction to comprehensively detect the trigger point of the anti-pinch function and the window position.

[0013] Preferably, the test cabinet includes an internal mounting plate, mounting columns, and shelves; the mounting plate is installed on the inner wall of the test cabinet, the mounting columns are detachably installed on the mounting plate, and the shelves are detachably installed on the mounting columns; the controller, relays, high-power resistors, and host computer are placed on the shelves or at the bottom of the test cabinet.

[0014] By adopting the above technical solutions, the detachable mounting posts and shelves facilitate the installation, replacement, and maintenance of circuit components, thereby improving the flexibility and scalability of the testing device.

[0015] Preferably, a fan is provided on the top of the test cabinet, and the air outlet of the fan faces the inner cavity of the test cabinet.

[0016] By adopting the above technical solution, the fan can effectively dissipate heat and prevent the controller, relays and other components from being damaged by overheating due to prolonged operation.

[0017] Preferably, the support frame includes a bottom frame, a top frame, a plurality of first support rods, and a plurality of sliding rods; the first support rods and the sliding rods are fixedly installed between the bottom frame and the top frame, and the window moving assembly is slidably connected to the sliding rods; the sensors are divided into multiple groups, and each group of sensors is installed on the first support rods along the sliding direction of the window moving assembly, with the sensing end of each group of sensors facing the adjacent window moving assembly.

[0018] By adopting the above technical solution, the support frame adopts a structure of bottom frame, top frame, support rod and sliding rod to ensure stable sliding of the window moving component and simulate the movement trajectory of a real window; Preferably, both the support frame and the test cabinet are equipped with lockable casters at their bottom.

[0019] By adopting the above technical solution, the testing device can be moved and fixed, adapting to the needs of different testing sites.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. The host computer reads sensor signals to determine whether the window has moved to the corresponding position. If the sensor outside the window's travel range is activated, the host computer stops the window motor and sounds an alarm through the controller. If the window does not move to the corresponding position, a fault is indicated to ensure the accuracy of the test. 2. The host computer controls the output of high and low levels and the time of the first and second connection terminals through the controller, which can control the forward and reverse rotation time of the window motor, and thus control the lifting and lowering stroke of the window; 3. By setting relay K1, under normal circumstances, contacts K11 and K12 are disconnected, which can prevent reverse interference to the host computer when the controller fails; when high-priority instructions need to be output, contacts K11 and K12 are electrically connected, so that high-priority instructions can be sent directly to the controller. Attached Figure Description

[0021] Figure 1 This is a circuit diagram of Embodiment 1 of this application; Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0022] Reference numerals: 1. Test cabinet; 11. Cabinet body; 111. Clearance hole; 12. Cabinet door; 13. Mounting plate; 131. First opening; 14. Mounting column; 141. Second opening; 15. Shelf; 2. Window test module; 21. Support frame; 211. Bottom frame; 212. Top frame; 213. First support rod; 214. Sliding rod; 215. Second support rod; 22. Window moving assembly; 23. Sensor; 3. Sliding wheel. Detailed Implementation

[0023] The following combination Figures 1-2 This application will be described in further detail.

[0024] Example 1; Embodiment 1 of this application discloses an automated testing circuit for the anti-pinch function of car windows.

[0025] Reference Figure 1 An automated testing circuit for an anti-pinch function of a vehicle window includes a power supply, a host computer, a controller, a high-power resistor R1, a sensor, a window motor, relays K1, K2, and K3. The host computer can be a PC, etc., and in this embodiment, the sensor is a Hall effect sensor.

[0026] The power supply's voltage output terminal is electrically connected to the controller's power supply terminal, and also electrically connected to the sensor's power supply terminal. The host computer has a first communication terminal, a second communication terminal, and a third communication terminal. In this embodiment, the first communication terminal is a CAN / LIN communication terminal, the second communication terminal is an RS232-1 communication terminal, and the third communication terminal is an RS232-2 communication terminal. The host computer's CAN / LIN communication terminal is electrically connected to the controller's first communication terminal, enabling the transmission of conventional commands, such as control commands and status queries, via CAN / LIN communication. The host computer's RS232-1 communication terminal is electrically connected to the K11 contact of relay K1, the K12 contact of relay K1 is electrically connected to the controller's second communication terminal, and the control terminal of relay K1 is controlled and connected to the host computer. Under normal circumstances, the host computer de-energizes relay K1, and contacts K11 and K12 are disconnected to prevent reverse interference to the host computer in case of controller failure. When a high-priority command (such as emergency stop) needs to be output to the controller, the host computer controls relay K1 to be energized. At this time, contacts K11 and K12 are electrically connected, so that the high-priority command can be directly sent to the controller.

[0027] The controller's first connection terminal is electrically connected to contact K31 of relay K3, and contact K32 of relay K3 is electrically connected to one end of the window motor. The control terminal of relay K3 is also connected to the RS232-2 communication terminal of the host computer. The controller's second connection terminal is also electrically connected to the other end of the window motor. When the host computer de-energizes relay K1, contacts K31 and K32 are open, and the window motor does not operate. When the host computer energizes relay K1, contacts K31 and K32 close, and the window motor rotates according to the high and low levels output by the controller's first and second connection terminals. For example, when the controller's first connection terminal outputs a high level and the second connection terminal outputs a low level, the window motor rotates forward; conversely, when the controller's first connection terminal outputs a low level and the second connection terminal outputs a high level, the window motor rotates in reverse.

[0028] When the host computer needs to perform window raising and lowering operations through the controller, the host computer can output a command to the controller. After receiving the control command, the controller can control the first and second connection terminals to output a high level or a low level, and control the output time, thereby controlling the forward or reverse rotation time of the window motor, and thus controlling the travel of the window raising and lowering.

[0029] The controller's second connection terminal is electrically connected to contact K21 of relay K2. Contact K22 of relay K2 is electrically connected to the controller's first connection terminal via a high-power resistor R1. The control terminal of relay K2 is also connected to the RS232-2 communication terminal of the host computer. When the motor starts, the host computer energizes relay K2, at which point contacts K21 and K22 are electrically connected. The high-power resistor R1 is connected in the motor circuit, thus minimizing the risk of excessive current damage to the controller or power supply due to stalling or mechanical jamming during window motor startup. After a short delay, the host computer de-energizes relay K2, at which point contacts K21 and K22 disconnect.

[0030] Multiple sensors are provided, and the outputs of all sensors are electrically connected to the RS232-2 communication port of the host computer. When the window stops moving, the Hall sensor corresponding to the stopping position is activated and sends a signal to the host computer. The host computer then reads the signal from the Hall sensor to determine whether the sensor is activated, thereby determining whether the window has moved to the corresponding position. If a Hall sensor is activated outside the window's travel range, the host computer stops the window motor and issues an alarm via the controller; if the window is detected as not having moved to the corresponding position, the host computer displays a fault message.

[0031] The implementation principle of the automated test circuit for the anti-pinch function of a car window in Embodiment 1 of this application is as follows: The host computer first establishes regular communication with the controller through the CAN / LIN bus and de-energizes relays K1, K2, and K3. During the test, the host computer first closes relay K2 and briefly inserts a high-power resistor R1 in series to suppress the motor starting impact, and then closes relay K3 to make the motor run in the set direction. When the car window reaches the expected position, the corresponding Hall sensor feeds back the position signal to the host computer. If the stroke is abnormal or an emergency stop is required, the host computer immediately activates relay K1 to send the high-priority emergency stop command from the RS232-1 communication terminal directly to the controller, and at the same time disconnects relay K3 to cut off the power supply to the motor, thereby realizing the automatic verification and protection of the anti-pinch function.

[0032] Example 2: Embodiment 2 of this application discloses an automated testing device for the anti-pinch function of vehicle windows.

[0033] refer to Figure 2 An automated testing device for the anti-pinch function of vehicle windows includes a test cabinet 1 and a window testing module 2. A controller, power supply, relays, high-power resistors, and a host computer are all installed inside the test cabinet 1. The test cabinet 1 has a clearance hole 111, through which the controller's connection cable can pass to the window testing module 2 for electrical connection. The window testing module 2 includes a support frame 21, a window moving component 22 mounted on the support frame 21, and multiple Hall effect sensors 23.

[0034] The test cabinet 1 is generally rectangular in shape, including a cabinet body 11 and a cabinet door 12 hinged to the cabinet body 11. The cabinet body 11 contains multiple mounting plates 13, multiple mounting posts 14, and multiple shelves 15. In this embodiment, four mounting plates 13 and four mounting posts 14 are provided. The mounting plates 13 are generally rectangular in shape, and multiple mounting plates 13 are symmetrically fixed to the inner wall of the cabinet body 11, with the length direction of the mounting plates 13 perpendicular to the length direction of the cabinet body 11. The mounting posts 14 are generally rectangular in shape with a U-shaped cross-section, and the length direction of the mounting posts 14 is parallel to the length direction of the cabinet body 11. The mounting posts 14 are detachably mounted on the mounting plates 13. The mounting plates 13 have multiple first openings 131 along their own direction, and the mounting posts 14 have multiple second mounting holes along their own length direction. By adjusting the position of the mounting post 14 so that one of the first openings 131 and one of the second openings 141 correspond, and then passing the bolts through the first opening 131 and the second opening 141 in sequence, the mounting post 14 can be installed on the mounting plate 13.

[0035] The shelf 15 is rectangular in shape, and its length is perpendicular to the length of the cabinet 11. A third opening, corresponding to the second opening 141, is provided on the outer side of the shelf 15 near the inner wall of the cabinet 11, allowing the shelf 15 to be detachably mounted on the mounting post 14 using bolts. In this embodiment, the controller, power supply, relay, and high-power resistor are all mounted on the shelf 15, and the host computer is placed at the bottom of the cabinet 11.

[0036] The applicability can be expanded by adjusting the installation positions of the mounting columns 14 and the number of shelves 15 to accommodate different testing needs.

[0037] Preferably, a fan is also installed on the top of the cabinet 11, with the fan outlet facing the inner cavity of the test cabinet 1. The function of the fan is to cool the components inside the cabinet 11, preventing them from overheating and being damaged due to prolonged operation, thereby improving the reliability and stability of the device.

[0038] The support frame 21 includes a base frame 211, multiple first support rods 213, multiple sliding rods 214, multiple second support rods 215, and a top frame 212, with the support rods and sliding rods 214 positioned between the base frame 211 and the top frame 212. The base frame 211 and top frame 212 are generally rectangular, with the length of the base frame 211 parallel to the length of the cabinet 11. Four first support rods 213 are located at the four corners of the base frame 211, with their lengths perpendicular to the length of the base frame 211. Four sliding rods 214 are located on the side of the first support rods 213 closest to the center of the base frame 211. Four second support rods 215 are located on the side of the sliding rods 214 closest to the center of the base frame 211, with the lengths of both the second support rods 215 and the sliding rods 214 parallel to the length of the first support rods 213. By setting up four windows that can simulate a car body.

[0039] The window moving assembly 22 is slidably disposed on the outer side of the sliding rod 214 away from the center of the bottom frame 211. The window moving assembly 22 includes a window motor and is capable of moving up and down along the length of the sliding rod 214. Multiple Hall sensors 23 are divided into four groups. Each group of Hall sensors 23 is equidistantly mounted on the first support rod 213 along its length, with the sensing end of each group of Hall sensors 23 facing the adjacent window moving assembly 22.

[0040] Preferably, both the support frame 21 and the test cabinet 1 are equipped with lockable casters 3 at their bottoms. The casters 3 facilitate the movement and fixation of the entire device to adapt to the needs of different testing sites.

[0041] The implementation principle of the automated testing device for the anti-pinch function of a vehicle window in Embodiment 2 of this application is as follows: The test cabinet 1 provides a safe and stable installation environment for the circuit components. By adjusting the position and number of the mounting columns 14 and shelves 15, it can flexibly adapt to different testing requirements. The fan effectively reduces the temperature of the components inside the cabinet 11, improving the reliability of the device. The vehicle window test module 2, through the cooperation of the support frame 21, the vehicle window moving component 22, and the Hall sensor 23, can accurately simulate the actual operation of the vehicle window and realize the testing of the anti-pinch function of the vehicle window.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automated testing circuit for the anti-pinch function of a vehicle window, characterized in that: The system includes a controller, a window motor, multiple sensors, a relay K3, and a host computer. The host computer is electrically connected to the first communication terminal of the controller via a first communication terminal. The first connection terminal of the controller is electrically connected to the K31 contact of the relay K3, the K32 contact of the relay K3 is electrically connected to one end of the window motor, and the control terminal of the relay K3 is controlled and connected to the third communication terminal of the host computer. The output terminals of the multiple sensors are all electrically connected to the third communication terminal of the host computer.

2. The automated testing circuit for the anti-pinch function of a vehicle window according to claim 1, characterized in that: It also includes a relay K2 and a high-power resistor R1. The second connection terminal of the controller is electrically connected to the K21 contact of the relay K2. The K22 contact of the relay K2 is electrically connected to the first connection terminal of the controller through the high-power resistor R1. The control terminal of the relay K2 is controlled to be connected to the third communication terminal of the host computer.

3. The automated testing circuit for the anti-pinch function of a vehicle window according to claim 1, characterized in that: It also includes a relay K1, the second communication terminal of the host computer is electrically connected to the K11 contact of the relay K1, the K12 contact of the relay K1 is electrically connected to the first communication terminal of the controller, and the control terminal of the relay K1 is controlled and connected to the host computer.

4. An automated testing device for the anti-pinch function of a vehicle window, comprising the automated testing circuit described in any one of claims 1-3, characterized in that: It also includes a test cabinet (1) and a window test module (2); the controller, relay, high-power resistor and host computer are all located in the test cabinet (1), the window test module (2) includes a support frame (21) and a window moving assembly (22), a plurality of sensors (23) are installed on the support frame (21), and the window moving assembly (22) includes a window motor, and the plurality of sensors (23) are arranged along the moving direction of the window moving assembly (22).

5. The automated testing device for the anti-pinch function of a vehicle window according to claim 4, characterized in that: The test cabinet (1) includes an internal mounting plate (13), mounting columns (14), and shelves (15); the mounting plate (13) is installed on the inner wall of the test cabinet (1), the mounting columns (14) are detachably installed on the mounting plate (13), and the shelves (15) are detachably installed on the mounting columns (14). The controller, relays, high-power resistors, and host computer are placed on the shelves (15) or at the bottom of the test cabinet (1).

6. The automated testing device for the anti-pinch function of a vehicle window according to claim 4, characterized in that: A fan is installed on the top of the test cabinet (1), and the air outlet of the fan faces the inner cavity of the test cabinet (1).

7. The automated testing device for the anti-pinch function of a vehicle window according to claim 4, characterized in that: The support frame (21) includes a bottom frame (211), a top frame (212), a plurality of first support rods (213), and a plurality of sliding rods (214); the first support rods (213) and the sliding rods (214) are fixedly installed between the bottom frame (211) and the top frame (212), and the window moving assembly (22) is slidably connected to the sliding rods (214); the sensors (23) are divided into multiple groups, and each group of sensors (23) is installed on the first support rods (213) along the sliding direction of the window moving assembly (22), and the sensing end of each group of sensors (23) faces the adjacent window moving assembly (22).

8. The automated testing device for the anti-pinch function of a vehicle window according to claim 4, characterized in that: Both the support frame (21) and the test cabinet (1) are equipped with lockable sliding wheels (3) at their bottoms.

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