A rapid test tool for vehicle control unit

Abstract

The utility model discloses a whole vehicle controller's quick test frock, including control base frame, the control base frame inboard is fixed with controller, the control base frame outside top fixed with test base plate, test vertical board is fixed to the both sides of test base plate top, two test vertical board inboard between fixed with test top plate, test top plate inboard top fixed with inner top piece, the inner top piece bottom side is provided with inner bottom piece, the replacement subassembly includes replacement upper sleeve, the replacement upper sleeve inboard is provided with internal thread, replacement lower sleeve is nested in the replacement upper sleeve, and the replacement lower sleeve outside is provided with the external thread of adaptation with internal thread, two replacement lower sleeve outside bottom all are fixed with contact, through the centralized instruction of controller, the sequence action of coordinated drive air cylinder and electric telescopic handle is driven, and with the help of the modular design of replacement subassembly, greatly promoted test efficiency and reliability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle controller technology, and in particular to a rapid testing fixture for a vehicle controller. Background Technology

[0002] The vehicle controller is like the brain of the vehicle, playing a vital role in coordinating various functions and systems. Its functional safety is crucial to the overall vehicle safety. It is the core component in electric vehicles responsible for managing and controlling various subsystems, and plays a key role in functions such as normal vehicle operation, regenerative braking of battery energy, network management, fault diagnosis and handling, and vehicle status monitoring.

[0003] In the prior art, a test fixture for automotive controllers, as described in patent publication number CN221726429U, includes a base box with a placement plate fixed on top. Clamping devices are fixed on both sides of the placement plate. A support column is fixed on the base box, and a top plate is fixed at the end of the support column away from the base box. Electric slide rails one and two are fixedly connected to the two sides below the top plate to adjust the position of the test head. However, existing test fixtures are often customized for specific controller models, and the position and spacing of their test contacts are fixed. When testing different models of vehicle controllers with different interface layouts, the entire test fixture or tooling needs to be replaced, increasing equipment costs and changeover time, and making rapid testing impossible. Furthermore, traditional test fixtures rely on manual wiring or the use of wire harnesses with fixed interfaces. Testers need to accurately align multiple test probes or connectors to the controller interface one by one. This process is time-consuming and labor-intensive, and is prone to connection errors due to human fatigue, which reduces testing efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a rapid testing fixture for vehicle controllers, in order to solve the problem that existing testing fixtures are often customized for specific models of controllers, and the position and spacing of their test contacts are fixed. When it is necessary to test different models of vehicle controllers with different interface layouts, the entire test fixture or tooling needs to be replaced, which increases equipment costs and changeover time, and makes it impossible to achieve rapid testing.

[0005] To achieve the above objectives, a rapid testing fixture for a vehicle controller is provided, comprising a control base frame, a controller fixed inside the control base frame, a test base plate fixed at the top outer side of the control base frame, test vertical plates fixed at both ends of the top of the test base plate, a test top plate fixed between the inner sides of the two test vertical plates, an inner top plate fixed at the top inner side of the test top plate, an inner bottom plate provided at the bottom side of the inner top plate, and replacement components fixed at both ends of the bottom of the inner bottom plate. The replacement components include an upper replacement sleeve with an internal thread on its inner side, a lower replacement sleeve nested inside the upper replacement sleeve, and an external thread adapted to the internal thread on the outer side of the lower replacement sleeve. Contacts are fixed at the bottom outer ends of both lower replacement sleeves.

[0006] According to the rapid testing fixture for a vehicle controller, support plates are fixed to the outer sides of both test vertical plates, and drive cylinders are fixed to the top of the support plates. The extension ends of the two drive cylinders penetrate into the inner side of the corresponding test vertical plates and are fixed with clamping plates.

[0007] According to the rapid testing fixture for a vehicle controller, a placement groove is provided at the center of the top surface of the test substrate, a buffer pad is fixed inside the placement groove, and the main body of the vehicle controller is placed on top of the buffer pad.

[0008] According to the rapid testing fixture for a vehicle controller, the inner top plate and the inner bottom plate are fixedly connected by an electric telescopic rod.

[0009] According to the rapid testing fixture for a vehicle controller, the top surface of the vehicle controller body has two insertion holes, and both insertion holes are adapted to corresponding contacts.

[0010] According to the rapid testing fixture for a vehicle controller, the sides of both clamping plates away from the drive cylinder are smoothed.

[0011] According to the rapid testing fixture for a vehicle controller, the two drive cylinders, contacts, and electric telescopic rods are all electrically connected to the controller.

[0012] According to the rapid testing fixture for a vehicle controller, the control base frame is fixed with support feet on all four sides of its bottom.

[0013] The above solution offers the following advantages: By using replaceable components, when testing vehicle controller bodies with different interface layouts, operators do not need to replace the entire fixture. They can simply unscrew the old replacement sleeve (with contacts) and screw on the new component that matches the new controller interface, shortening equipment preparation and changeover time. This adapts to controllers or interfaces of different heights, enhancing the applicability and flexibility of the fixture. Furthermore, by using a clamping plate driven by a cylinder, automated clamping and fixing of the vehicle controller body is achieved. The clamping force provided by the cylinder is constant and controllable, ensuring that the controller is fixed with consistent force and position during each test, eliminating the uncertainty of manual operation.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a front and side view of the overall design of a rapid testing fixture for a vehicle controller according to this utility model. Figure 2 This is an enlarged schematic diagram of point A of a rapid testing fixture for a vehicle controller according to this utility model; Figure 3 This is a schematic diagram of the main body of the buffer pad of a rapid testing fixture for a vehicle controller according to this utility model; Figure 4 This is a side view of the overall oblique side of a rapid testing fixture for a vehicle controller according to this utility model.

[0016] Legend: 1. Control base frame; 2. Control device; 3. Test base plate; 4. Test vertical plate; 5. Test top plate; 6. Inner top plate; 7. Inner bottom plate; 8. Replacement upper sleeve; 9. Replacement lower sleeve; 10. Contact; 11. Support plate; 12. Drive cylinder; 13. Clamping plate; 14. Placement slot; 15. Buffer pad; 16. Vehicle controller body; 17. Electric telescopic rod; 18. Plug hole; 19. Support foot. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Reference Figure 1-4This utility model discloses a rapid testing fixture for a vehicle controller, comprising a control base frame 1, a controller 2 fixed inside the control base frame 1, a test base plate 3 fixed at the top outer side of the control base frame 1, test vertical plates 4 fixed at both ends of the top of the test base plate 3, a test top plate 5 fixed between the inner sides of the two test vertical plates 4, an inner top plate 6 fixed at the top inner side of the test top plate 5, an inner bottom plate 7 disposed at the bottom side of the inner top plate 6, and replacement components fixed at both ends of the bottom of the inner bottom plate 7. The replacement components include an upper replacement sleeve 8, an internal thread on the inner side of the upper replacement sleeve 8, a lower replacement sleeve 9 nested inside the upper replacement sleeve 8, and an external thread on the outer side of the lower replacement sleeve 9 adapted to the internal thread. Contacts 10 are fixed at the bottom outer ends of both lower replacement sleeves 9. In the existing technology, test fixtures are often customized for specific controller models, and the position and spacing of their test contacts 10 are fixed. When it is necessary to test different models of vehicle controllers with different interface layouts, the entire test fixture or tooling needs to be replaced, which increases equipment costs and changeover time, and makes it impossible to achieve rapid testing. To address this issue, alternative components can be set up. When it is necessary to test the main body 16 of a vehicle controller with different interface layouts, the operator does not need to replace the entire tooling. They only need to unscrew the old replacement sleeve 9 (with contacts 10) and screw on the new component that matches the interface of the new controller. This shortens the equipment preparation and changeover time, adapts to controllers or interfaces of different heights, and enhances the applicability and flexibility of the tooling.

[0019] Both test vertical plates 4 are fixed with support plates 11 on their outer sides. A drive cylinder 12 is fixed to the top of the support plate 11. The extension ends of the two drive cylinders 12 extend through to the inner side of the corresponding test vertical plates 4 and are fixed with clamping plates 13. By setting clamping plates 13 driven by drive cylinders 12, the automatic clamping and fixing of the vehicle controller body 16 is realized. The clamping force provided by the cylinder is constant and controllable, ensuring that the force and position of the controller being fixed are consistent during each test, eliminating the uncertainty of human operation.

[0020] A placement groove 14 is provided at the center of the top surface of the test substrate 3. A buffer pad 15 is fixed inside the placement groove 14. The vehicle controller body 16 is placed on top of the buffer pad 15. The placement groove 14 can initially position the vehicle controller body 16, which is convenient for subsequent clamping and contact 10 docking, reducing the risk of misalignment. The buffer pad 15 (usually made of elastic materials such as rubber, silicone or foam) can effectively prevent the bottom of the vehicle controller body 16 from being scratched or bumped during placement and testing, and can also play a certain role in shock absorption, protecting the delicate electronic components.

[0021] The inner top plate 6 and the inner bottom plate 7 are fixedly connected by an electric telescopic rod 17. The electric telescopic rod 17 connects the inner top plate 6 and the inner bottom plate 7, thereby controlling the lifting and lowering of the contact 10, accurately controlling the pressing stroke and speed, and ensuring that the contact 10 can be smoothly and accurately inserted into the plug hole 18 of the controller.

[0022] The top surface of the main body 16 of the vehicle controller has two plug holes 18, both of which are adapted to the corresponding contacts 10, which clarifies the specific connection method and ensures the physical feasibility and effectiveness of the electrical connection, and is the basis for realizing the testing function.

[0023] The sides of both clamping plates 13 away from the drive cylinder 12 are made smooth to prevent scratches on the outer shell of the vehicle controller body 16 during clamping, reflecting the human-centered design consideration for product protection.

[0024] The two drive cylinders 12, the contact 10 and the electric telescopic rod 17 are all electrically connected to the controller 2. Through unified programming control by the controller 2 (such as PLC or microcontroller), the sequential control and precise timing management of actions such as clamping, pressing, testing and resetting can be realized, reducing the difficulty of operation and human intervention.

[0025] The control base frame 1 is fixed with support feet 19 on all four sides of the bottom. Multiple support feet 19 provide stable support to prevent the tooling from shaking or shifting during operation and to ensure the accuracy of the test connection.

[0026] Working principle: The operator places the vehicle controller body 16 to be tested into the placement slot 14 on the test base plate 3. The contour of the placement slot 14 provides initial positioning for the controller, ensuring it is in a roughly correct position. The buffer pad 15 inside the slot provides cushioning to prevent scratches on the bottom of the controller. The operator starts the test process through an external command (such as pressing the start button). After receiving the signal, the controller 2 (such as a PLC) sends an action command to the two drive cylinders 12. The piston rods of the two drive cylinders 12 extend synchronously, pushing the clamping plate 13 towards the center. The main body 16 of the vehicle controller moves, and the smooth-surfaced clamping plate 13 smoothly contacts both sides of the controller and firmly fixes it in the center of the placement slot 14 with a controllable clamping force. After confirming that the controller has been reliably clamped (by sensor signals or time delay control), the controller 2 then activates the electric telescopic rod 17. The electric telescopic rod 17 extends downward, pushing the inner bottom plate 7 connected to it and the entire test head module (including replacement components and contacts 10) fixed on it downward. The electric telescopic rod 17 precisely controls the stroke and speed of the downward press to ensure that the contacts 10 can be smoothly and vertically aligned and inserted into the plug hole 18 on the top of the controller, forming a stable and reliable electrical connection. When the contacts 10 are successfully connected to the controller, the controller 2 sends a preset test signal (such as power, analog sensor signal, CAN bus signal, etc.) to the contacts 10 through a cable. At the same time, the controller 2 collects the controller's response signal (such as output drive signal, communication message, etc.) through the contacts 10. The controller 2 either compares the collected data with the preset standard value to automatically determine the test result (pass / fail) or uploads the data. The host computer performs more complex analysis. After the test is completed, the controller 2 controls the electric telescopic rod 17 to retract, pulling the contact 10 out of the plug hole 18. Then, the controller controls the drive cylinder 12 to retract, causing the clamping plate 13 to release the controller. The operator can then take out the tested controller. When different models of controllers need to be tested, the operator only needs to manually rotate the replacement sleeve 9 to remove the entire contact 10 assembly from the replacement upper sleeve 8 and replace it with a contact 10 assembly that matches the interface of the new model controller, thus quickly completing the tooling adaptation and adjustment.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rapid test fixture for a vehicle control unit, comprising: The utility model provides a control base frame (1), its characterized in be fixed with control device (2) in the inside of control base frame (1), the outside top of control base frame (1) is fixed with test base plate (3), the top of test base plate (3) is fixed with test vertical board (4) left and right two ends, and the inside between two test vertical board (4) is fixed with test top plate (5), and the inside top of test top plate (5) is fixed with inner top piece (6), and the bottom of inner top piece (6) is provided with inner bottom piece (7), and the bottom of inner bottom piece (7) is fixed with replacement assembly, and the replacement assembly includes replacement upper sleeve (8), and the inside of replacement upper sleeve (8) is provided with internal thread, and the inside of replacement upper sleeve (8) is nested with replacement lower sleeve (9), and the outside of replacement lower sleeve (9) is provided with external thread that is adapted with internal thread, and the bottom of two replacement lower sleeve (9) is fixed with contact (10) outside.

2. The rapid test fixture of the whole vehicle controller according to claim 1, characterized in that, The outside of two test vertical board (4) is fixed with bracing plate (11), and the top of bracing plate (11) is fixed with drive cylinder (12), and the extension end of two drive cylinder (12) is all penetrated to the inside of corresponding test vertical board (4), and is all fixed with clamping plate (13).

3. The rapid test fixture of the whole vehicle controller according to claim 2, characterized in that, The top center of test base plate (3) is provided with placing groove (14), and the inside of placing groove (14) is fixed with buffer pad (15), and the top of buffer pad (15) is placed with whole vehicle controller body (16).

4. The rapid test fixture of the whole vehicle controller according to claim 3, characterized in that, The inside between inner top piece (6) and inner bottom piece (7) is fixedly connected through electric telescopic rod (17).

5. The rapid test fixture of the whole vehicle controller according to claim 4, characterized in that, The top of whole vehicle controller body (16) is provided with two plug-in holes (18), and two plug-in holes (18) are adapted with corresponding contact (10).

6. The rapid test fixture of the whole vehicle controller according to claim 5, characterized in that, The side of two clamping plate (13) away from drive cylinder (12) is all provided with smooth.

7. The rapid test fixture of the whole vehicle controller according to claim 6, characterized in that, Two drive cylinder (12), contact (10) and electric telescopic rod (17) are electrically connected with control device (2).

8. The rapid test fixture of the whole vehicle controller according to claim 1, characterized in that, The bottom of control base frame (1) is all fixed with support leg (19).

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