ECU (Electronic Control Unit) test bench

Abstract

The invention relates to an ECU test bench, which comprises a shell, a test assembly and a core board, and is characterized in that the shell is provided with a first side wall; the testing assembly comprises a box body and a first linear driving part, the box body is movably arranged in the shell, the box body and the first side wall are oppositely arranged, a plurality of connectors are arranged on the side, away from the first side wall, of the box body, the first linear driving part is installed on the first side wall, and the output end of the first linear driving part is connected to the box body; the first linear driving piece is used for driving the box body to move towards or away from the first side wall; the core board is arranged in the box body, and all the connectors are electrically connected to the core board. According to the method and the device, automatic testing can be realized, missing detection can be avoided, manual participation is not needed, and the working efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of ECU testing, and in particular to an ECU testing bench. Background Art

[0002] With the development of intelligent vehicles, more and more controllers are being developed. Verification, matching, fault diagnosis and testing in the development and production of ECUs (Electronic Control Units) have become a prominent issue. In order to optimize the ECU development cycle and production efficiency, ECUs usually need to be tested.

[0003] At present, when testing an ECU, a tester usually connects the ECU to a test fixture, and the test fixture tests the ECU. However, the tester's uninterrupted work may cause physical discomfort and mental laziness, which may easily lead to missed inspections, thus affecting product quality. Summary of the invention

[0004] Based on the above description, the present invention provides an ECU test bench, aiming to solve the problem that the existing ECU test is prone to missed detection.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: An ECU test bench, comprising: A housing having a first side wall; A test assembly, comprising a box body and a first linear driving member, wherein the box body is movably arranged in the housing, the box body is arranged opposite to the first side wall, a plurality of joints are arranged on a side of the box body away from the first side wall, the first linear driving member is installed on the first side wall, an output end of the first linear driving member is connected to the box body, and the first linear driving member is used to drive the box body to move toward or away from the first side wall; The core board is arranged in the box body, and all the connectors are electrically connected to the core board.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the box body has a first surface and a second surface opposite to each other, the first surface and the second surface are provided with sliding parts, the shell body is provided with a connecting part corresponding to each of the sliding parts, and the sliding parts are slidably matched with the connecting parts.

[0008] Furthermore, the core board includes a control board, a connection expansion board and a load simulation board, the connection expansion board and the load simulation board are electrically connected to the control board, and all the connectors are electrically connected to the connection expansion board.

[0009] Further, it includes a clamping mechanism, which includes a support frame, a driving assembly and a clamping assembly, the support frame is connected to the bottom wall of the shell, the driving assembly is arranged on the support frame, and the clamping assembly is configured as a pair, the pair of clamping assemblies are both arranged in the shell, the pair of clamping assemblies are symmetrically arranged with the defined axis as the symmetry axis, the bottom wall of the shell is provided with a sliding hole corresponding to each of the clamping assemblies, and each of the clamping assemblies passes through the sliding hole one by one and is connected to the driving assembly.

[0010] Furthermore, the driving assembly includes a driving motor and a rotating arm, and the rotating arm is arranged at the output end of the driving motor.

[0011] Furthermore, the clamping assembly includes a connecting arm, a sliding seat and a clamping plate, one end of the connecting arm is rotatably connected to one end of the rotating arm, one end of the sliding seat passes through the sliding hole and is rotatably connected to the other end of the connecting arm, and the clamping plate is arranged on the sliding seat.

[0012] Furthermore, a limiting assembly is included, the shell has a second side wall opposite to the first side wall, and the limiting assembly is arranged on the second side wall.

[0013] Furthermore, the limiting assembly includes a second linear driving member and a limiting plate, the second linear driving member is mounted on the second side wall, and the limiting plate is arranged on the output end of the second linear driving member.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: (1) This application can realize automated testing, which can not only avoid missed detections, but also eliminate the need for manual participation, thereby improving work efficiency.

[0015] (2) The present application can prevent the ECU from moving by means of a clamping assembly; in addition, a pair of clamping assemblies can also realize ECUs of different sizes, thereby improving the utilization rate of the test bench. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 An assembly diagram of an ECU test bench provided in an embodiment of the present invention from one perspective; Figure 2 It is an assembly diagram of an ECU test bench provided in an embodiment of the present invention from another perspective; Figure 3 It is a structural schematic diagram of the clamping mechanism in an embodiment of the present invention; Figure 4 Schematic diagram of the structure of the core board in an embodiment of the present invention.

[0017] Description of reference numerals: L 1 , define the axis; 10. housing; 101. first side wall; 102. second side wall; 11. sliding portion; 12. sliding hole; 20. test assembly; 21. box body; 211. joint; 22. first linear drive member; 30. Core board; 31. Control board; 32. Connection expansion board; 33. Load simulation board; 40. Clamping mechanism; 41. Support frame; 42. Driving assembly; 421. Driving motor; 422. Rotating arm; 43. Clamping assembly; 431. Connecting arm; 432. Sliding seat; 433. Clamping plate; 50. Limiting assembly; 51. Limiting plate; 52. Second linear driving member. DETAILED DESCRIPTION

[0018] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0020] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0021] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0022] Reference Figure 1~2 As shown, the present invention provides a technical solution: an ECU test bench, comprising a shell 10, a test assembly 20 and a core board 30, the shell 10 having a first side wall 101; the test assembly 20 comprising a box body 21 and a first linear driver 22, the box body 21 is movably arranged in the shell 10, the box body 21 is arranged opposite to the first side wall 101, a side of the box body 21 away from the first side wall 101 is provided with a plurality of joints 211, the first linear driver 22 is installed on the first side wall 101, the output end of the first linear driver 22 is connected to the box body 21, and the first linear driver 22 is used to drive the box body 21 to move toward or away from the first side wall 101; the core board 30 is arranged in the box body 21, and all the joints 211 are electrically connected to the core board 30.

[0023] Exemplarily, the first linear drive member 22 may be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, etc., and may also include a motor, a screw rod, a screw sleeve, etc.

[0024] In this embodiment, after the ECU is placed in the housing 10, the first linear drive 22 pushes the box body 21 toward the ECU so that all the connectors 211 are inserted into the interfaces of the ECU one by one. When the core board 30 receives the conduction signal between the connector 211 and the interface of the ECU, the first linear drive 22 stops moving, so that the core board 30 starts to test the ECU. In this way, automated testing can be achieved, which not only avoids missed detection, but also eliminates the need for manual participation, thereby improving work efficiency.

[0025] Reference Figure 1~2 As shown, in some embodiments, the box body 21 has a first surface and a second surface relative to each other, and sliding parts 11 are provided on the first surface and the second surface. The shell 10 is provided with a connecting part corresponding to each sliding part 11, and the sliding part 11 is slidably matched with the connecting part.

[0026] Exemplarily, the first surface and the second surface refer to the left and right sides of the box body 21, respectively; that is, the first surface may be the left side of the box body 21, and the second surface may be the right side of the box body 21; the first surface may be the right side of the box body 21, and the second surface may be the left side of the box body 21. The sliding portion 11 may be a slider or a slide groove, etc., and the connecting portion may be a guide rail or a sliding protrusion, etc.; when the sliding portion 11 is a slider, the connecting portion is a guide rail; when the sliding portion 11 is a slide groove, the connecting portion is a sliding protrusion.

[0027] In this embodiment, when the box body 21 moves, the stability of the box body 21 can be ensured by the cooperation between the sliding part 11 and the connecting part.

[0028] Reference Figure 4 As shown, in some embodiments, the core board 30 includes a control board 31, a connection expansion board 32 and a load simulation board 33, the connection expansion board 32 and the load simulation board 33 are both electrically connected to the control board 31, and all connectors 211 are electrically connected to the connection expansion board 32.

[0029] Exemplarily, the control board 31 may be a single chip microcomputer of the Microchip dspic33ep series or the like.

[0030] In this embodiment, the connection expansion board 32 is mainly used to test the ECU. The load simulation board 33 is mainly used to display the working condition of the load, so that the tester can understand the working condition of the tested ECU in a timely manner.

[0031] Reference Figures 1 to 3 As shown, in some embodiments, a clamping mechanism 40 is included, the clamping mechanism 40 includes a support frame 41, a drive assembly 42 and a clamping assembly 43, the support frame 41 is connected to the bottom wall of the housing 10, the drive assembly 42 is arranged on the support frame 41, and the clamping assembly 43 is configured as a pair, and the pair of clamping assemblies 43 are both arranged in the housing 10, and the pair of clamping assemblies 43 define an axis L 1 The bottom wall of the housing 10 is symmetrically arranged with respect to the axis of symmetry, and a sliding hole 12 is formed in correspondence with each clamping assembly 43 . Each clamping assembly 43 passes through the sliding hole 12 and is connected to the driving assembly 42 in a one-to-one correspondence.

[0032] In this embodiment, the driving component 42 drives a pair of clamping components 43 to clamp the ECU, which can prevent the ECU from moving when the connector 211 is inserted into the ECU interface; in addition, the pair of clamping components 43 can also realize ECUs of different sizes, thereby improving the utilization rate of the test bench.

[0033] Reference Figures 1 to 3 As shown, in some embodiments, the driving assembly 42 includes a driving motor 421 and a rotating arm 422 , and the rotating arm 422 is disposed at the output end of the driving motor 421 .

[0034] Exemplarily, the driving motor 421 may be a servo motor, a stepper motor, a reduction motor, or the like.

[0035] In this embodiment, the rotating arm 422 is driven to rotate by the driving motor 421 , so as to provide power to the clamping assembly 43 .

[0036] Reference Figures 1 to 3 As shown, in some embodiments, the clamping assembly 43 includes a connecting arm 431, a sliding seat 432 and a clamping plate 433, one end of the connecting arm 431 is rotatably connected to one end of the rotating arm 422, one end of the sliding seat 432 passes through the sliding hole 12 and is rotatably connected to the other end of the connecting arm 431, and the clamping plate 433 is arranged on the sliding seat 432.

[0037] In this embodiment, when the driving motor 421 drives the rotating arm 422 to rotate, the rotating arm 422 drives the two slide seats 432 to move along the slide hole 12 one by one through the two connecting arms 431, so that the two clamping plates 433 clamp the ECU.

[0038] In some embodiments, the clamping surface of the clamping plate 433 is provided with a plurality of anti-slip protrusions.

[0039] Exemplarily, the anti-slip protrusions may be made of rubber material, such as silicone.

[0040] In this embodiment, the friction between the clamping plate 433 and the ECU is increased by the anti-skid protrusions, thereby achieving an anti-skid effect.

[0041] Reference Figure 1~2 As shown, in some embodiments, a limiting assembly 50 is included, the housing 10 has a second side wall 102 opposite to the first side wall 101 , and the limiting assembly 50 is disposed on the second side wall 102 .

[0042] Exemplarily, the limiting assembly 50 may be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, or the like.

[0043] In this embodiment, after the clamping assembly 43 clamps the ECU, the limiting assembly 50 abuts against the ECU, thereby preventing the ECU from slipping.

[0044] Reference Figure 1~2 As shown, in some embodiments, the limiting assembly 50 includes a second linear driving member 52 and a limiting plate 51 . The second linear driving member 52 is mounted on the second side wall 102 , and the limiting plate 51 is disposed on the output end of the second linear driving member 52 .

[0045] Exemplarily, the second linear drive member 52 may be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, or the like.

[0046] In this embodiment, the second linear drive member 52 provides power to the limit plate 51, and the limit plate 51 can abut against the ECU. At the same time, the limit plate 51 can increase the contact area with the ECU, so that the ECU is evenly stressed and prevents deformation of the ECU.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ECU test bench, characterized in that: include: A housing (10) having a first side wall (101); A test assembly (20), comprising a box body (21) and a first linear driving member (22), wherein the box body (21) is movably arranged in the housing (10), the box body (21) is arranged opposite to the first side wall (101), a side of the box body (21) away from the first side wall (101) is provided with a plurality of joints (211), the first linear driving member (22) is mounted on the first side wall (101), an output end of the first linear driving member (22) is connected to the box body (21), and the first linear driving member (22) is used to drive the box body (21) to move towards or away from the first side wall (101); The core board (30) is disposed in the box body (21), and all the connectors (211) are electrically connected to the core board (30).

2. An ECU test bench according to claim 1, characterized in that: The box body (21) has a first surface and a second surface opposite to each other, sliding parts (11) are provided on the first surface and the second surface, and the housing (10) is provided with a connecting part corresponding to each sliding part (11), and the sliding part (11) is slidably matched with the connecting part.

3. An ECU test bench according to claim 1, characterized in that: The core board (30) comprises a control board (31), a connection expansion board (32) and a load simulation board (33); the connection expansion board (32) and the load simulation board (33) are both electrically connected to the control board (31); and all the connectors (211) are electrically connected to the connection expansion board (32).

4. The ECU test bench according to claim 1, characterized in that: The invention comprises a clamping mechanism (40), wherein the clamping mechanism (40) comprises a support frame (41), a driving assembly (42) and a clamping assembly (43), wherein the support frame (41) is connected to the bottom wall of the housing (10), the driving assembly (42) is arranged on the support frame (41), and the clamping assembly (43) is configured as a pair, wherein the pair of clamping assemblies (43) are both arranged in the housing (10), and the pair of clamping assemblies (43) are symmetrically arranged with a defined axis (L1) as a symmetry axis, and the bottom wall of the housing (10) is provided with a sliding hole (12) corresponding to each of the clamping assemblies (43), and each of the clamping assemblies (43) passes through the sliding hole (12) in a one-to-one correspondence and is connected to the driving assembly (42).

5. An ECU test bench according to claim 4, characterized in that: The driving assembly (42) comprises a driving motor (421) and a rotating arm (422); the rotating arm (422) is arranged at the output end of the driving motor (421).

6. The ECU test bench according to claim 5, characterized in that: The clamping assembly (43) comprises a connecting arm (431), a sliding seat (432) and a clamping plate (433); one end of the connecting arm (431) is rotatably connected to one end of the rotating arm (422); one end of the sliding seat (432) passes through the sliding hole (12) and is rotatably connected to the other end of the connecting arm (431); and the clamping plate (433) is arranged on the sliding seat (432).

7. An ECU test bench according to any one of claims 4 to 6, characterized in that: It comprises a limiting assembly (50), the housing (10) having a second side wall (102) opposite to the first side wall (101), and the limiting assembly (50) is arranged on the second side wall (102).

8. An ECU test bench according to claim 7, characterized in that: The limiting assembly (50) comprises a second linear driving member (52) and a limiting plate (51), wherein the second linear driving member (52) is mounted on the second side wall (102), and the limiting plate (51) is arranged on the output end of the second linear driving member (52).

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