Gear shifting track test bench of automobile gear shifter control panel
By simulating the shift trajectory of the car shift shifter and using the shift trajectory test bench of the car shifter control panel, the problem of lack of effective detection of Hall sensor position and selection in the prior art is solved, and a fast, low-cost and efficient detection effect is achieved.
Patent Information
- Application Number
- CN202510230568.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-05-30
AI Technical Summary
When designing automotive gear shifters, the existing technology lacks effective detection of the position and selection of Hall sensors on the core control board, resulting in the design relying on experience and theoretical models, lack of practical experimental data guidance, and the cost and efficiency of automatic testing mechanism using a shifter assembly to detect the core control board is high and low.
It provides a gear shift track test bench for the automotive shift control board. By simulating the shift track of the automotive shifter, it quickly confirms whether the position of the Hall sensor and the relative position of the magnet on the core control board meet the design needs, and provides experimental data support for the position and selection of the Hall sensor.
It realizes a quick confirmation of whether the relative position relationship between the Hall sensor position and the magnet on the shifter core control board meets the design needs, reduces costs and improves efficiency, and in the future, other detection equipment can be added to the test bench to facilitate the detection of whether the core control board is qualified.
Smart Images
Figure CN120063747A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of testing the shifting trajectory of an automotive shifter, and particularly to a testing bench for the shifting trajectory of a control board of an automotive shifter. Background Art
[0002] A Hall sensor is installed on the core control board inside the automotive shifter, and a magnet is installed on the shift lever of the shifter mechanism assembly. When the vehicle shifts gears, the Hall sensor on the core control board detects the position of the magnet on the shift lever to achieve the shifting operation. However, in the prior art, when designing a shifter, it is usually through an automatic testing mechanism to detect whether the performance of the shifter assembly sample is qualified, so as to confirm whether the shifter design is reasonable. However, in the prior art, when designing a shifter, the position and selection of the Hall sensor on its core control board are usually designed based on the experience of the staff and theoretical models, lacking actual experimental data guidance. Moreover, since it is usually through an automatic testing mechanism in the prior art to detect whether the performance of the shifter assembly is qualified, there is no detection equipment specifically for the position and selection of the Hall sensor on the core control board of the shifter. If the automatic testing mechanism of the shifter assembly is used to detect the core control board, the cost is high and the efficiency is low. Summary of the Invention
[0003] In view of the above problems, the present invention provides a testing bench for the shifting trajectory of a control board of an automotive shifter, which can quickly confirm whether the relative position between the position of the Hall sensor on the core control board and the magnet meets the design requirements by simulating the shifting trajectory of the automotive shifter, and provides experimental data support for the position and selection of the Hall sensor on the core control board.
[0004] The technical solution of the present invention is as follows: A testing bench for the shifting trajectory of a control board of an automotive shifter, including a test bench. An upright U-shaped bracket is provided at the upper end of the test bench. A first motor is fixed on the cross beam at the upper end of the U-shaped bracket. A lead screw extending downward is fixed on the output shaft of the first motor. A lifting plate is arranged in the U-shaped bracket. The lifting plate is in threaded cooperation with the lead screw, so that the lifting plate moves up and down along the lead screw. Guide column holes are provided on both sides of the lifting plate. Two guide columns are provided on the test bench. The lifting plate is slidably matched with the guide columns through the guide column holes. A second motor is provided on the lifting plate. The output shaft of the second motor extends downward through the through hole of the lifting plate, and a rocker arm is fixed at the end. A magnet is provided on one side of the rocker arm, and a probe is provided on the other side. A fixing seat for fixing the position of the control board is provided on the test bench in the area corresponding to the magnet. Two proximity switches are provided on the test bench in the area corresponding to the probe. There is a gap between the two proximity switches, so that the probe is located above the gap.
[0005] Preferably, a clamping groove is provided on the fixing seat, and the clamping groove leaves a degree of freedom for the displacement of the control board.
[0006] Preferably, a plurality of support columns are provided between the second motor and the lifting plate.
[0007] Preferably, the height of the support column is greater than 60 mm.
[0008] Preferably, the length of the output shaft of the second motor is 80-100 mm.
[0009] The advantages of the present invention are as follows: By simulating the shifting trajectory of an automotive shifter, the present invention provides experimental data guidance for the position and selection of Hall sensors on the core control board of the shifter, enabling quick confirmation of whether the relative position relationship between the position of the Hall sensor on the core control board of the shifter and the magnet meets the design requirements of the shifter, and based on the detected relative position relationship that meets the design requirements of the shifter, the type of the Hall sensor is confirmed. It has low cost and high efficiency, and other full-functional detection devices such as multimeters can be added to the test bench for subsequent production of the core control board to facilitate detection of whether the core control board is qualified. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is Figure 1 an enlarged view of part A of Figure 3 is a cross-sectional view of the rocker arm of the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0011] See Figures 1 to 3, A shift trajectory test bench for an automotive shifter control panel, comprising a test bench 1. An upright U-shaped bracket 2 is provided at the upper end of the test bench 1. A first motor 4 is fixed on the cross beam 3 at the upper end of the U-shaped bracket 2. A lead screw 5 extending downward is fixed on the output shaft of the first motor 4. A lifting plate 6 is arranged in the U-shaped bracket 2. The lifting plate 6 is in threaded cooperation with the lead screw 5, enabling the lifting plate 6 to move up and down along the lead screw 5. Guide column holes are provided on both sides of the lifting plate 6. Two guide columns 10 are provided on the test bench 1. The lifting plate 6 is slidably engaged with the guide columns 10 through the guide column holes. A second motor 7 is provided on the lifting plate 6. Four support columns 11 are provided between the second motor 7 and the lifting plate 6. The height of the support columns 11 is greater than 60 mm, so that the second motor is as far away from the control panel as possible to prevent the electromagnetic interference of the second motor from affecting the test results. The output shaft 71 of the second motor 7 extends downward through the through hole of the lifting plate 6, and a rocker arm 8 is circumferentially fixed at the end by screws. The length of the output shaft of the second motor 7 is 80 - 100 mm, so that the second motor is as far away from the rocker arm 8 as possible to prevent the electromagnetic interference of the second motor from affecting the test results. A magnet 81 is provided on one side of the rocker arm 8, and a probe 82 is provided on the other side. A fixing seat 9 for fixing the position of the control panel is provided on the test bench 1 corresponding to the area of the magnet 81. A clamping groove is provided on the fixing seat 9, and the clamping groove leaves a degree of freedom for the displacement of the control panel, enabling the control panel to displace in the horizontal direction. Two proximity switches 12 are provided on the test bench 1 corresponding to the area of the probe 82. A gap is provided between the two proximity switches 12, enabling the probe 82 to swing above the gap.
[0012] The first and second motors of the present invention are both 42 stepper motors. Among them, the step angle of the second motor is 1.8°, and the motor controller is divided into 8 steps, with a sub-divided step angle of 0.225°. The test steps of the present invention are as follows: First, place the control board into the card slot of the fixed seat 9 on the test bench 1, and adjust the positions of the control board in the horizontal X-axis and Y-axis directions, so as to adjust the relative positions of the Hall sensors on the control board and the magnets 81 on the rocker arm 8. Similarly, drive the first motor 4 to move the lifting plate 6 in the vertical Z-axis direction, so as to adjust the relative positions of the magnets 81 on the rocker arm 8 and the Hall sensors on the control board. After adjustment, drive the second motor 7 to rotate clockwise or counterclockwise at a step angle of 1.8° until it rotates to the maximum angle, that is, the probe 82 of the rocker arm 8 is detected by the proximity switch 12. Then drive the second motor to reverse until it rotates to the maximum angle, that is, the probe 82 of the rocker arm 8 is detected by another proximity switch 12. The control board outputs the detection data during the whole process, and then analyzes whether these data meet the design requirements of the shifter. If not, readjust the positions of the control board in the horizontal X-axis and Y-axis directions, and / or drive the first motor 4 to adjust the position of the rocker arm 8 in the Z-axis direction, and then detect whether the relative positions of the magnet 82 and the Hall sensor meet the design requirements of the shifter; if they meet, select the type of Hall sensor according to the relative position relationship between the magnet 81 and the Hall sensor this time, and re-detect whether the new type of Hall sensor meets the design requirements of the shifter according to the previous relative position relationship with the magnet 81.
[0013] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications made by those skilled in the art without departing from the spirit of the present invention fall within the protection scope of the present invention.
Claims
1. A shift trajectory test bench for a vehicle shifter control panel, characterized in that: The test bench (1) comprises a test bench (1), wherein the upper end of the test bench (1) is provided with a door-shaped bracket (2) which stands upright, a first motor (4) is fixed on a crossbeam (3) at the upper end of the door-shaped bracket (2), a screw rod (5) extending downward is fixed to the output shaft of the first motor (4), a lifting plate (6) is provided in the door-shaped bracket (2), the lifting plate (6) and the screw rod (5) are threadedly matched so that the lifting plate (6) is lifted and lowered along the screw rod (5), guide column holes are provided on both sides of the lifting plate (6), and two guide columns (10) are provided on the test bench (1), and the lifting plate (6) is connected to the guide columns (10) through the guide column holes. 10) Sliding fit, a second motor (7) is provided on the lifting plate (6), an output shaft (71) of the second motor (7) passes through a through hole of the lifting plate (6) and extends downward, a rocker arm (8) is fixed at the end, a magnet (81) is provided on one side of the rocker arm (8), and a probe (82) is provided on the other side, a fixing seat (9) for fixing the position of the control panel is provided in an area corresponding to the magnet (81) on the test bench (1), two proximity switches (12) are provided in an area corresponding to the probe (82) on the test bench (1), a gap is provided between the two proximity switches (12), so that the probe (82) is located above the gap.
2. The shift trajectory test bench for a vehicle shifter control panel according to claim 1, characterized in that: The fixing seat (9) is provided with a slot, and the slot has a degree of freedom for the control panel to move.
3. The shift trajectory test bench for a vehicle shifter control panel according to claim 1, characterized in that: A plurality of support columns (11) are provided between the second motor (7) and the lifting plate (6).
4. The shift trajectory test bench for a vehicle shifter control panel according to claim 3, characterized in that: The support column (11) has a height greater than 60 mm.
5. The shift trajectory test bench for a vehicle shifter control panel according to claim 1, characterized in that: The length of the output shaft of the second motor (7) is 80-100 mm.