Electric vehicle door testing device
By combining a support platform, adjustment unit, control unit, and robotic arm, the opening and closing function of electric vehicle doors is tested automatically, solving the problem of wasted human resources during the testing process and achieving efficient and accurate test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AVATR CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-26
Smart Images
Figure CN224286392U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle function testing equipment technology, and in particular to an electric vehicle door testing device. Background Technology
[0002] In the automotive industry, with increasing demands for convenience and intelligence in vehicles, electric doors have emerged. There is no need to manually push or pull the door to open or close it; simply pressing the switch button will automatically open or close the electric door.
[0003] In related technologies, electric doors have problems such as deviations in opening angle and inaccurate radar collision warnings during the opening and closing process. Therefore, it is necessary to test the opening and closing function of electric doors. However, the process of testing the opening and closing function of electric doors requires manual operation of each door on the vehicle to open or close, which is time-consuming and labor-intensive.
[0004] Therefore, in the relevant technologies, there are technical problems such as wasted human resources and low testing efficiency in the process of testing the opening and closing function of electric vehicle doors. Utility Model Content
[0005] In view of the above problems, this application provides an electric vehicle door testing device, which aims to solve the technical problems of wasted human resources and low testing efficiency in the process of testing the opening and closing function of electric vehicle doors, so as to save human resources, reduce labor costs, and improve the testing efficiency of functional testing of electric vehicle doors on vehicles.
[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:
[0007] This application provides an electric vehicle door testing device, including:
[0008] A support platform is used to support the vehicle to be tested. Each position on the support platform corresponding to the wheel of the vehicle to be tested has a limiting groove. When the vehicle to be tested is on the support platform, the wheel is locked in the corresponding limiting groove.
[0009] An adjustment unit is disposed below the support platform. The adjustment unit is configured to change the direction, pitch angle, and tilt angle of the support platform to both sides.
[0010] A control unit and a robotic arm, the robotic arm being signal-connected to the control unit, the control unit being configured to control the robotic arm to open or close the electric door of the vehicle under test.
[0011] This setup allows the vehicle under test to be positioned on the support platform. The platform's direction or angle can be adjusted by the adjustment unit to simulate a real parking state. In this state, the control unit controls the robotic arm to open or close the electric door, thus obtaining the test results for the electric door's opening and closing function in this parking state. This provides data support for determining whether the electric door's angle is acceptable when open and whether the radar collision avoidance alarm is accurate. Furthermore, the combination of the control unit and the robotic arm to open or close the electric door replaces manual pushing or pulling or pressing of the door control button, saving manpower, reducing labor costs, and improving the testing efficiency of the electric door's opening and closing function.
[0012] In some embodiments, the robotic arm is mounted on and detachably connected to the support platform, and the robotic arm is configured to open or close the electric vehicle door from the outside of the vehicle under test; or...
[0013] The robotic arm is installed inside the cabin of the vehicle under test and is detachably connected to the vehicle under test. The robotic arm is configured to open or close the electric door inside the vehicle under test.
[0014] This setup serves two purposes. First, it can simulate the opening and closing of the electric doors of the vehicle under test from both outside and inside the vehicle cabin, corresponding to scenarios where people outside and passengers inside the vehicle open or close the electric doors. This makes the door opening and closing function testing of the vehicle under test more comprehensive and reliable. Second, the detachable connection between the robotic arm and the support platform or the vehicle under test allows the robotic arm to be repaired and replaced. The same robotic arm can also be placed at different positions corresponding to different electric doors to perform door opening and closing function tests, thereby reducing the number of robotic arms required and lowering the manufacturing cost of the electric door function testing device.
[0015] In some embodiments, the electric vehicle door testing device further includes a connector through which the robotic arm is connected to one of the support platform and the vehicle under test.
[0016] This setup allows for a detachable connection between the robotic arm and the platform or the vehicle under test via connectors, resulting in a simple structure and low cost.
[0017] In some embodiments, the connector is a suction cup.
[0018] This setup prevents damage to the test platform or the vehicle under test during the adaptation process of the connectors, thus ensuring the integrity of the test vehicle and the test platform.
[0019] In some embodiments, the electric vehicle door testing device further includes an angle detection element disposed at the electric vehicle door and signal-connected to the control unit, the angle detection element being configured to detect the opening angle of the electric vehicle door.
[0020] This setup records angle data during the opening and closing of the electric vehicle door, providing data support for determining whether the angle of the electric vehicle door is within acceptable limits when it is open.
[0021] In some embodiments, the angle detection element is a laser goniometer; and / or,
[0022] The electric vehicle door testing device further includes a pressure detection element, which is disposed on at least one of the outer side of the electric vehicle door and the bottom of the electric vehicle door, and the pressure detection element is signal-connected to the control unit to detect the collision state of the electric vehicle door.
[0023] This setup serves two purposes: firstly, the laser angle measuring instrument provides more accurate data to support the assessment of whether the angle of the electric door is within acceptable limits when it is open; secondly, the pressure testing device is designed to obtain the impact strength between the electric door and the vehicle body during the opening and closing process, providing pressure data support for testing the vehicle's door opening and closing function.
[0024] In some embodiments, the adjustment unit includes a support frame, casters disposed at the bottom of the support frame, and lifting mechanisms disposed at the four corners below the support platform. The support frame is supported between the casters and the support platform, and the casters roll in contact with the ground to change the orientation of the support platform.
[0025] Each of the lifting mechanisms is signal-connected to the control unit, which controls the vertical lifting movement of each lifting mechanism to change the pitch angle and tilt angle of the support platform.
[0026] This setup allows for changes in the direction and tilt angle of the platform; furthermore, the signal connection between the control unit and the lifting mechanism reduces manual intervention in the control process, saving manpower, lowering labor costs, and improving control efficiency.
[0027] In some embodiments, the lifting mechanism includes a drive motor and four connecting rods, which are sequentially hinged end to end. The drive motor is signal-connected to the control unit and connected to one of the four connecting rods, so that the drive motor drives the connecting rod to move, thereby changing the height of the lifting mechanism in the vertical direction.
[0028] This design results in high support strength for the lifting mechanism and simple, easy-to-implement control logic.
[0029] In some embodiments, a drive mechanism and an obstacle assembly are provided on opposite sides of the support platform. The obstacle assembly includes a drive arm and an obstacle. The drive arm is connected to the drive mechanism, and the obstacle is disposed on the drive arm. The drive mechanism is configured to drive the drive arm to move the obstacle along the length direction of the support platform. The drive arm is configured to move the obstacle in three-dimensional space to change the position of the obstacle in three-dimensional space.
[0030] This setup allows for the simulation of the positional relationship between the vehicle's electric door and surrounding obstacles during the opening and closing process, thereby obtaining accurate data for radar collision avoidance alarms and providing data support for subsequent adjustments to radar facilities and electric doors.
[0031] In some embodiments, the drive mechanism includes a lead screw motor and a lead screw, the lead screw extending along the length direction of the support platform and connected to the lead screw motor, the lead screw motor being signal-connected to the control unit, and the drive arm having a lead screw nut that matches the lead screw, the lead screw nut being helically connected to the lead screw;
[0032] The drive arm includes at least two articulated arms pivotally connected in sequence, and the obstacle is located at the end of at least two of the articulated arms away from the lead screw.
[0033] This configuration serves two purposes. First, it allows the drive arm, driven by the drive mechanism, to move along the length of the support platform via a lead screw and lead screw nut. This enables the drive arm to be adjusted significantly relative to the electric door, accommodating the positions of electric doors on vehicles of different sizes. Furthermore, the drive mechanism is controlled by a control unit, reducing manual intervention, manpower, and labor costs. Second, it makes the drive arm's movements more flexible and versatile, allowing it to move in three-dimensional space. Obstacles can be positioned relative to the electric door at any location—front, back, left, right, top, or bottom—to obtain more accurate and comprehensive radar collision avoidance alarm data when the electric door is opening and closing.
[0034] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the electric vehicle door testing device provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description
[0035] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0036] Figure 1 A schematic diagram of the electric vehicle door testing device provided in an embodiment of this application;
[0037] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;
[0038] Figure 3 A schematic diagram of the structure of a robotic arm provided in an embodiment of this application;
[0039] Figure 4 A schematic diagram of the structure of the robotic arm provided in an embodiment of this application from another perspective;
[0040] Figure 5 This is a schematic diagram of a control structure for a control unit provided in an embodiment of this application;
[0041] Figure 6 A schematic diagram of the electric vehicle door testing device provided in an embodiment of this application from another perspective;
[0042] Figure 7 for Figure 6 A magnified view of a section at point B.
[0043] Explanation of reference numerals in the attached figures:
[0044] 100 - Electric vehicle door testing device; 200 - Vehicle under test;
[0045] 110 - Support platform; 111 - Limiting groove; 112 - Obstacle assembly;
[0046] 1121-Drive arm; 1122-Obstacle; 1131-Lead screw; 1132-Lead screw nut; 1133-Lead screw motor;
[0047] 120 - Adjustment unit; 121 - Support frame; 122 - Casters; 123 - Lifting mechanism;
[0048] 1231 - First link; 1232 - Second link; 1233 - Third link; 1234 - Fourth link; 1235 - Drive motor;
[0049] 130-robotic arm;
[0050] 140-Control unit; 141-Controller; 142-Actuator; 143-Display; 144-Angle detection element; 145-Pressure detection element. Detailed Implementation
[0051] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0052] In the automotive industry, with increasing demands for convenience and intelligence in vehicles, electric doors have emerged. There is no need to manually push the door to open or close it; simply pressing the door's switch button will automatically open or close the electric door.
[0053] Because electric doors are prone to deviations in opening angle and inaccurate radar collision warnings during operation, the opening and closing functions of the electric doors need to be tested before the vehicle is officially sold. In some implementations, the opening and closing of each electric door is directly controlled manually, not limited to pushing or pulling the door handle, or manipulating the control panel or buttons. However, this testing method is wasteful of human resources and has low testing efficiency.
[0054] To address the aforementioned problems, this application provides an electric vehicle door testing device. The content of this application will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly and thoroughly understand the content of this application.
[0055] Figure 1 A schematic diagram of the electric vehicle door testing device provided in an embodiment of this application; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 A schematic diagram of the structure of a robotic arm provided in an embodiment of this application; Figure 4 This is a schematic diagram of the robotic arm provided in an embodiment of this application from another perspective. For example... Figure 1 , Figure 3 and Figure 4 As shown, the electric vehicle door testing device 100 includes a support platform 110, an adjustment unit 120, a control unit 140, and a robotic arm 130.
[0056] Among them, combined Figure 1 and Figure 2 As shown, the support platform 110 is used to support the vehicle under test 200. Each position on the support platform 110 corresponding to the wheel of the vehicle under test 200 has a limiting groove 111. When the vehicle under test 200 is on the support platform 110, the wheel is locked in the corresponding limiting groove 111. In addition, there are smooth inclined ramps on both sides of the support platform 110 in the horizontal direction so that the vehicle under test 200 can drive more smoothly and quickly into the limiting groove 111 of the support platform 110.
[0057] In other embodiments, the support platform 110 may also have multiple fixing posts for fixing the wheels. One end of each fixing post is fixedly connected to the support platform 110, including but not limited to welding, bolt and nut connection, snap-fit connection, etc. The other end of each fixing post can be selectively fixedly connected to the wheel of the vehicle. This selective fixing connection method can be to set pneumatic or hydraulic grippers, electromagnetic adsorption components, etc. at this end.
[0058] like Figure 1 As shown, the adjustment unit 120 in the electric vehicle door testing device 100 is located below the support platform 110. The adjustment unit 120 is configured to change the direction, pitch angle and tilt angle of the support platform 110 to both sides. For example, adjusting unit 120 can change the direction of platform 110 to simulate the parking state of vehicle 200 when it is driving straight or turning in actual parking conditions; adjusting unit 120 can change the pitch angle to simulate the parking state of vehicle 200 on road sections with different slopes, such as uphill and downhill sections; adjusting unit 120 can change the tilt angle of both sides of platform 110 to simulate the parking state of vehicle 200 on sloping road sections on both sides of the vehicle body; and by adjusting unit 120, the direction of platform 110 and the tilt angle in different directions can be adjusted according to the planned state of the functional test to be performed on the vehicle, so that the parking state simulated by vehicle 200 is closer to the parking state in the actual environment, thereby improving the reliability of the opening and closing function test of electric door of vehicle 200.
[0059] In addition, such as Figure 5As shown, the control unit 140 and the robotic arm 130 in the electric vehicle door testing device 100 are connected by signals. The control unit 140 is configured to control the robotic arm 130 to open or close the electric vehicle door of the vehicle under test 200, so that the vehicle under test 200 can perform electric vehicle door opening and closing function tests in the parking state provided by the adjustment unit 120. In this way, the robotic arm 130 replaces manual door opening and closing, saving manpower, reducing labor costs, and improving testing efficiency. Moreover, the setting of the control unit 140 means that the opening and closing action of the robotic arm 130 does not need to be constantly monitored and operated by humans, and the movement of the robotic arm 130 is more precise by using the control unit 140 to control the movement of the robotic arm 130.
[0060] In some embodiments, such as Figure 5 As shown, the control unit 140 includes a controller 141, an actuator 142, and a display 143. The display 143 is signal-connected to the controller 141, the controller 141 is signal-connected to the actuator 142, and the actuator 142 is signal-connected to the robotic arm 130. The display 143 is used to display the motion state of the robotic arm 130, and the motion parameters of the robotic arm 130 can also be set on the display 143. The motion parameters of the robotic arm 130 set by the display 143 are generated into electrical signals and transmitted to the controller 141. The controller 141 generates pulse signals and transmits them to the actuator 142. The actuator 142 controls the robotic arm 130 to complete the specified action corresponding to the motion parameters set in the display 143, that is, in this embodiment, to open or close the electric vehicle door.
[0061] Additionally, in some embodiments, such as Figure 3 As shown, the robotic arm 130 can be formed by multiple connecting arms pivotally connected in sequence, allowing the robotic arm 130 to move along any path in three-dimensional space, thus making the movement of the robotic arm 130 more flexible and enabling it to open or close the electric doors of the vehicle under test 200. For example, the number of robotic arms 130 is consistent with the number of electric doors on the vehicle under test 200, such as two, four, etc.
[0062] In this embodiment, the vehicle under test 200 is fixed relative to the support platform 110 by being secured in the limiting groove 111. With the adjustment unit 120 adjusting the direction and tilt angle of the support platform 110, the vehicle under test 200 can simulate the state of a vehicle when actually parked. In this state, the control unit 140 controls the robotic arm 130 to open or close the electric door, thereby obtaining the test results of the opening and closing function of the electric door of the vehicle under test 200 in this state. This provides data support for judging whether the angle of the electric door in the open state is qualified and whether the radar anti-collision alarm is accurate. In addition, in this test process, the combination of the control unit 140 and the robotic arm 130 to open or close the electric door replaces the manual control of the electric door opening or closing, saving manpower, reducing labor costs, and improving the testing efficiency of the electric door opening and closing function test.
[0063] In some embodiments, a robotic arm 130 is mounted on and detachably connected to a support platform 110. The robotic arm 130 is configured to open or close the electric door from the outside of the vehicle under test 200. This obtains the results of the door opening and closing function test of the vehicle under test 200 from the outside, providing data reference for determining whether the angle of the electric door in the open state is qualified and whether the radar collision avoidance alarm is accurate when the door is opened and closed from the outside. The detachable connection between the robotic arm 130 and the support platform 110 allows the robotic arm 130 to be repaired and replaced. The same robotic arm 130 can also be used at different electric door positions for door opening and closing function testing, thereby reducing the number of robotic arms 130 required and lowering the manufacturing cost of the electric door function testing device.
[0064] For example, the detachable connection between the robotic arm 130 and the support platform 110 includes, but is not limited to, bolt and nut connections, snap-fit connections, pin connections, and magnetic connections. Alternatively, a slide rail can be provided on the support platform 110, and a slider can be provided at the end of the robotic arm 130 near the support platform 110. The slide rail and slider match, allowing the robotic arm 130 and the support platform 110 to slide together. When opening or closing the door, the robotic arm 130 needs to be slid relative to the support platform 110 to the position corresponding to the electric door, and then fixed. The robotic arm 130 can then perform the opening or closing action. The robotic arm 130 can be fixed relative to the slide rail by providing bolt holes at corresponding positions on the slide rail and slider, using bolts and these bolt holes to achieve relative fixation.
[0065] In other embodiments, such as Figure 3 and Figure 4As shown, a robotic arm 130 is installed inside the cabin of the vehicle under test 200 and is detachably connected to the vehicle under test 200. The robotic arm 130 is configured to open or close the electric doors inside the vehicle under test 200 to obtain the results of the door opening and closing function test of the vehicle under test 200 when the electric doors are opened or closed from the inside. This provides data reference for judging whether the angle of the electric door in the open state is qualified and whether the radar collision avoidance alarm is accurate when the door is opened and closed inside the vehicle. The detachable connection between the robotic arm 130 and the vehicle under test 200 allows the robotic arm 130 to be repaired and replaced. The same robotic arm 130 can also be installed at the corresponding positions of different electric doors in the cabin to perform door opening and closing function tests, thereby reducing the number of robotic arms 130 required and reducing the manufacturing cost of the electric door function testing device.
[0066] For example, when the robotic arm 130 is installed inside the cabin of the vehicle under test 200, the detachable connection between the robotic arm 130 and the cabin can be a magnetic connection, a gripper connection, or the like.
[0067] It should be noted that during the process of the robotic arm 130 controlling the opening or closing of the electric door relative to the vehicle, the robotic arm 130 can act on the handle on the inside or outside of the door, or on the control panel or control buttons that control the door opening and closing. That is, when the robotic arm 130 is mounted on the support platform 110, it acts on the handle on the outside of the electric door; when the robotic arm 130 is mounted inside the vehicle cabin, it can act on the handle on the inside of the electric door, or on the control panel or control buttons, to control the opening or closing of the electric door. Regardless of whether the robotic arm 130 is mounted on the support platform 110 or inside the vehicle cabin, as... Figure 3 and Figure 4 As shown, the number of robotic arms 130 can be one, two, four, etc. Specifically, the number of robotic arms 130 can be the same as the number of electric doors on the vehicle under test 200, or multiple electric doors can share one robotic arm 130. For example, electric doors located on the same side of the vehicle under test 200 can use the same robotic arm 130 to test their opening and closing functions.
[0068] Furthermore, in order to achieve a detachable connection between the robotic arm 130 and the platform 110 or the vehicle under test 200, the electric door testing device 100 also includes a connector. The robotic arm 130 is connected to one of the platform 110 and the vehicle under test 200 through the connector, so that the robotic arm 130 can be detachably connected to the platform 110 or the vehicle under test 200 through the connector.
[0069] As an example, the connector is a suction cup. The suction cup design is simple in structure, easy to implement, and does not cause destructive modifications to the support platform 110 or the vehicle under test 200, ensuring the integrity of the vehicle under test 200 during the door opening and closing function test. As another example, the connector can also be a magnetic or threaded component.
[0070] Additionally, in some embodiments, such as Figure 5 As shown, the electric vehicle door testing device 100 also includes an angle detection element 144, which is disposed at the electric vehicle door and is connected to the control unit 140 by signal. The angle detection element 144 is configured to detect the opening angle of the electric vehicle door to record the angle data during the opening or closing process of the electric vehicle door, and to provide data support for whether the angle of the electric vehicle door in the open state is qualified.
[0071] For example, the angle detection element 144 is a laser goniometer; another example is that the angle detection element 144 can also be a potentiometer-type angle sensor, a capacitive angle sensor, an ultrasonic angle sensor, an inductive angle sensor, a magnetoresistive angle sensor, an incremental encoder, an absolute encoder, etc.
[0072] In other embodiments, such as Figure 5 As shown, the electric vehicle door testing device 100 also includes a pressure detection element 145, which is disposed on at least one of the outer side of the electric vehicle door and the bottom of the electric vehicle door. The pressure detection element 145 is connected to the control unit 140 to detect the collision state of the electric vehicle door, thereby obtaining the collision intensity between the electric vehicle door and the vehicle body during the opening and closing process, and providing pressure data support for the vehicle's door opening and closing function test.
[0073] For example, the pressure sensing element 145 can be a strain gauge pressure sensor, a piezoresistive pressure sensor, a capacitive pressure sensor, an inductive pressure sensor, etc.
[0074] In addition, such as Figure 6 As shown, the adjustment unit 120 includes a support frame 121, casters 122 disposed at the bottom of the support frame 121, and lifting mechanisms 123 disposed at the four corners below the support platform 110. The support frame 121 is supported between the casters 122 and the support platform 110. The casters 122 roll in contact with the ground to change the direction of the support platform 110, thereby simulating the parking state of the vehicle under test 200 when driving straight or turning. In addition, the tilt direction of the support platform 110 can be changed by adjusting the lifting mechanism 123 at the four corners of the support platform 110, thereby changing the pitch angle and left and right tilt angle of the vehicle under test 200 mounted on the support platform 110.
[0075] Combination Figure 1As shown in the diagram, with the -X direction (the direction of the front of the vehicle 200 under test) as forward, the +X direction (the direction of the rear of the vehicle) as backward, the +Y direction as left, the -Y direction as right, the +Z direction as up, and the -Z direction as down, the four lifting mechanisms 123 are located at the left front, left rear, right front, and right rear of the vehicle 200 under test, respectively. By adjusting the height difference between the left front and right front lifting mechanisms 123 after they rise or fall and the left rear and right rear lifting mechanisms 123, the pitch angle of the vehicle 200 under test can be adjusted. For example, by making the height of the left front and right front lifting mechanisms 123 higher than the height of the left rear and right rear lifting mechanisms 123, the pitch angle of the vehicle 200 under test can be adjusted, allowing the vehicle 200 under test to simulate parking on an uphill ramp. The state of the vehicle under test is such that the height of the left and right rear lifting mechanisms 123 after they rise is higher than the height of the left and right front lifting mechanisms 123. This allows the tilt angle of the vehicle under test 200 to be adjusted, simulating the state of the vehicle under test 200 when parking on a descending slope. Similarly, by adjusting the height difference between the left and right front and left rear lifting mechanisms 123 after they rise or fall and the right front and right rear lifting mechanisms 123, the tilt angle of the left and right sides of the vehicle under test 200 can be adjusted, so that the vehicle under test 200 can simulate the parking state when the road surface on the left and right sides is uneven. This provides the actual parking state for the subsequent door opening and closing function test of the vehicle under test 200, so as to obtain the test results of the electric door opening and closing function in this state, making the test results more accurate and reliable.
[0076] For example, the number of support frames 121 in the adjustment unit 120 can be four, six, eight, etc., evenly distributed below the support platform 110, so that the process of changing the direction of the support platform 110 is more stable and smooth. The casters 122 are located at the bottom of the support frames 121, and their number is the same as the number of support frames 121.
[0077] Furthermore, each lifting mechanism 123 is signal-connected to the control unit 140. The control unit 140 is used to control the lifting and lowering movement of each lifting mechanism 123 in the vertical direction to change the pitch angle of the support platform 110 and the tilt angle to both sides. This configuration makes the lifting and lowering movement of each lifting mechanism 123 more precise under the control of the control unit 140, and reduces the process of manual intervention in the control, saving manpower, reducing labor costs, and improving control efficiency.
[0078] For example, such as Figure 5 and Figure 6As shown, the lifting mechanism 123 includes a drive motor 1235 and four connecting rods. The four connecting rods are hinged end-to-end in sequence. The drive motor 1235 is signal-connected to the control unit 140 and connected to one of the four connecting rods, so that the drive motor 1235 drives the connecting rod to move, thereby changing the height of the lifting mechanism 123 in the vertical direction. This configuration results in high support strength for the lifting mechanism 123 and simple control logic, making it easy to implement.
[0079] The four connecting rods are designated as first connecting rod 1231, second connecting rod 1232, third connecting rod 1233, and fourth connecting rod 1234. The hinge points of first connecting rod 1231 and fourth connecting rod 1234 are simultaneously hinged to the lower surface of the support platform 110, while the hinge points of second connecting rod 1232 and third connecting rod 1233 are simultaneously hinged to the ground. These hinges can be achieved by additional connecting components. For example, a connecting component can be provided between the lifting mechanism 123 and the support platform 110, with one end fixedly connected to the lower surface of the support platform and the other end hinged to first connecting rod 1231 and fourth connecting rod 1234 respectively. Similarly, a connecting component can be provided between the lifting mechanism 123 and the ground, with one end fixedly connected to the ground and the other end hinged to second connecting rod 1232 and third connecting rod 1233 respectively. Taking the electrical signal connection between the drive motor 1235 and first connecting rod 1231 as an example, in... Figure 6 From the perspective of [the device], when the drive motor 1235 drives the first link 1231 to rotate clockwise relative to the hinge of the second link 1232, it causes the lifting mechanism 123 to descend vertically. When the drive motor 1235 drives the first link 1231 to rotate counterclockwise relative to the hinge of the second link 1232, it causes the lifting mechanism 123 to rise vertically. Therefore, by controlling the drive motor 1235 to drive the lifting motion of each lifting mechanism 123 in the vertical direction through the control unit 140, the pitch angle and tilt angle of the platform 110 can be changed, providing different parking states for the vehicle under test 200.
[0080] Of course, the lifting mechanism 123 can also be a combination of pneumatic cylinders and pistons, a combination of hydraulic cylinders and hydraulic rods, etc., to realize the lifting of the support platform 110.
[0081] In addition, such as Figure 6 and Figure 7As shown, a drive mechanism and an obstacle assembly 112 are provided on opposite sides of the support platform 110. The obstacle assembly 112 includes a drive arm 1121 and an obstacle 1122. The drive arm 1121 is connected to the drive mechanism, and the obstacle 1122 is disposed on the drive arm 1121. The drive mechanism is configured to drive the drive arm 1121 to move the obstacle 1122 along the length direction of the support platform 110. The drive arm 1121 is configured to move the obstacle 1122 in three-dimensional space to change the position of the obstacle 1122 in three-dimensional space. This can simulate the positional relationship between the electric door of the vehicle and the surrounding obstacles 1122 during the opening and closing process, thereby obtaining the accuracy data of the radar collision avoidance alarm and providing data support for subsequent adjustments to the radar facilities and the electric door.
[0082] In some embodiments, the number of drive arms 1121 can be two or four, evenly distributed on both sides of the vehicle under test 200. Each drive arm 1121 includes at least two articulated arms pivotally connected in sequence. For example, the number of articulated arms in each drive arm 1121 can be two, three, four, etc., making the movement of the drive arm 1121 more flexible and versatile, and allowing it to move in three-dimensional space. The obstacle 1122 is set at the end of at least two articulated arms away from the lead screw 1131. Under the movement of the drive arm 1121 in three-dimensional space, it can be set at any position relative to the electric door, in front, behind, left, right, up, or down, so as to obtain more accurate and richer radar collision avoidance alarm data when the electric door is opening and closing.
[0083] For example, the obstacle 1122 can be a plate, column, sphere, rigid obstacle 1122, flexible obstacle 1122, etc. With the pressure detection component 145, pressure data when the electric vehicle door collides with the obstacle 1122 during opening and closing can be obtained, that is, collision intensity data.
[0084] In addition, combined Figure 5 and Figure 7As shown, the drive mechanism includes a lead screw motor 1133 and a lead screw 1131. The lead screw 1131 extends along the length of the support platform 110 and is connected to the lead screw motor 1133. The lead screw motor 1133 is signal-connected to the control unit 140. The drive arm 1121 has a lead screw nut 1132 that matches the lead screw 1131. The lead screw nut 1132 is helically connected to the lead screw 1131. This arrangement allows the drive arm 1121 to move under the drive of the drive mechanism via the lead screw 1131 and the lead screw nut 1132. The drive arm 1121 can move along the length of the support platform 110, so that the position of the drive arm 1121 relative to the electric door can be adjusted significantly to adapt to the position of the electric door of the vehicle 200 under test of different sizes. Since the drive arm 1121 can move relative to the length of the support platform 110, the opening and closing function test of the electric door on the same side can share one drive arm 1121. It is only necessary to adjust the drive arm 1121 to the corresponding position of the support platform 110 when the opening and closing function test of the corresponding electric door is performed.
[0085] In some embodiments, a support structure is provided between the drive arm 1121 and the lead screw 1131. The end of the drive arm 1121 away from the obstacle 1122 is fixedly connected to the support structure. The side of the support structure facing away from the drive arm 1121 has a lead screw nut 1132, which is helically connected to the lead screw 1131. The provision of the support structure improves the connection strength and stability between the drive arm 1121 and the lead screw 1131. For example, the support structure can be a support plate.
[0086] In addition, there is a base between the lead screw 1131 and the support platform 110. The lead screw 1131 is fixedly connected to the support platform 110 through the base to enhance the support stability of the drive mechanism. The fixed connection between the lead screw 1131 and the base, and between the base and the support platform 110, can be welding, bolt and nut connection, snap-fit connection, adhesive bonding, etc.
[0087] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.
[0088] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.
[0089] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).
[0090] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.
[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. An electric vehicle door testing device, characterized in that, include: A support platform (110) is used to support the vehicle to be tested (200). Each support platform (110) has a limiting groove (111) at a position corresponding to the wheel of the vehicle to be tested (200). When the vehicle to be tested (200) is on the support platform (110), the wheel is locked in the limiting groove (111) corresponding to it. An adjustment unit (120) is disposed below the support platform (110). The adjustment unit (120) is configured to change the orientation, pitch angle and tilt angle of the support platform (110) to both sides. A control unit (140) and a robotic arm (130) are provided, the robotic arm (130) being signal-connected to the control unit (140), the control unit (140) being configured to control the robotic arm (130) to open or close the electric door of the vehicle under test (200).
2. The electric vehicle door testing device according to claim 1, characterized in that, The robotic arm (130) is mounted on the support platform (110) and detachably connected to the support platform (110). The robotic arm (130) is configured to open or close the electric vehicle door from the outside of the vehicle under test (200); or, The robotic arm (130) is located inside the cabin of the vehicle under test (200) and is detachably connected to the vehicle under test (200). The robotic arm (130) is configured to open or close the electric vehicle door inside the vehicle under test (200).
3. The electric vehicle door testing device according to claim 2, characterized in that, The electric vehicle door testing device (100) also includes a connector, through which the robotic arm (130) is connected to one of the support platform (110) and the vehicle under test (200).
4. The electric vehicle door testing device according to claim 3, characterized in that, The connector is a suction cup.
5. The electric vehicle door testing device according to any one of claims 1-4, characterized in that, The electric vehicle door testing device (100) further includes an angle detection element (144), which is disposed at the electric vehicle door and is signal-connected to the control unit (140). The angle detection element (144) is configured to detect the opening angle of the electric vehicle door.
6. The electric vehicle door testing device according to claim 5, characterized in that, The angle detection component (144) is a laser goniometer; and / or, The electric vehicle door testing device (100) further includes a pressure detection element (145), which is disposed on at least one of the outer side of the electric vehicle door and the bottom of the electric vehicle door, and the pressure detection element (145) is signal-connected to the control unit (140) to detect the collision state of the electric vehicle door.
7. The electric vehicle door testing device according to any one of claims 1-4, characterized in that, The adjustment unit (120) includes a support frame (121), casters (122) disposed at the bottom of the support frame (121), and lifting mechanisms (123) disposed at the four corners below the support platform (110). The support frame (121) is supported between the casters (122) and the support platform (110). The casters (122) roll in contact with the ground to change the direction of the support platform (110). Each of the lifting mechanisms (123) is signal-connected to the control unit (140), which is used to control the lifting movement of each of the lifting mechanisms (123) in the vertical direction to change the pitch angle and tilt angle of the support platform (110) to both sides.
8. The electric vehicle door testing device according to claim 7, characterized in that, The lifting mechanism (123) includes a drive motor (1235) and four connecting rods. The four connecting rods are hinged end to end in sequence. The drive motor (1235) is signal-connected to the control unit (140) and connected to one of the four connecting rods so that the drive motor (1235) drives the connecting rod to move, thereby changing the height of the lifting mechanism (123) in the vertical direction.
9. The electric vehicle door testing device according to any one of claims 1-4, characterized in that, A drive mechanism and an obstacle assembly (112) are provided on opposite sides of the support platform (110). The obstacle assembly (112) includes a drive arm (1121) and an obstacle (1122). The drive arm (1121) is connected to the drive mechanism, and the obstacle (1122) is disposed on the drive arm (1121). The drive mechanism is configured to drive the drive arm (1121) to move the obstacle (1122) along the length direction of the support platform (110). The drive arm (1121) is configured to move the obstacle (1122) in three-dimensional space to change the position of the obstacle (1122) in three-dimensional space.
10. The electric vehicle door testing device according to claim 9, characterized in that, The drive mechanism includes a lead screw motor (1133) and a lead screw (1131). The lead screw (1131) extends along the length of the support platform (110) and is connected to the lead screw motor (1133). The lead screw motor (1133) is signal-connected to the control unit (140). The drive arm (1121) has a lead screw nut (1132) that matches the lead screw (1131). The lead screw nut (1132) is helically connected to the lead screw (1131). The drive arm (1121) includes at least two articulated arms pivotally connected in sequence, and the obstacle (1122) is located at one end of the at least two articulated arms away from the lead screw (1131).