CN220913552U

CN220913552U - PNG controller automatic test system

Info

Publication number: CN220913552U
Application number: CN202322547095.6U
Authority: CN
Inventors: 王玉婷; 李沫; 朱止姗
Original assignee: Yancheng Shiming Electronic Devices Co ltd; Delphi Electrical Centers Shanghai Co Ltd
Current assignee: Yancheng Shiming Electronic Devices Co ltd; Delphi Electrical Centers Shanghai Co Ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-05-07
Anticipated expiration: 2033-09-19

Abstract

The utility model relates to an automatic test system of a PNG controller, which comprises a test bench cabinet, an upper computer and a test needle bed for installing and fixing a piece to be tested, wherein the test bench cabinet is respectively connected with the test needle bed and the upper computer, a main control unit, a power supply module, a load module, a data acquisition module and a signal transfer box are arranged in the test bench cabinet, the main control unit is connected with the upper computer, and the signal transfer box is connected with the test needle bed. Compared with the prior art, the utility model replaces the original manual welding wire and wiring process by using the test needle bed and the signal transfer box, and the integrated power supply, load and data acquisition module inside the test bench cabinet replaces various test instrument devices in the original manual test, and can automatically, efficiently and accurately test the PNG controller by combining with the host computer.

Description

PNG controller automatic test system

Technical Field

The utility model relates to the technical field of automobile electronic controller testing, in particular to an automatic PNG controller testing system.

Background

PNG (Power Network Guardian, power supply network monitoring module) is an important automobile electronic controller, and the main function of PNG is to separate the power supply loads at two sides of an automobile, so that when the power supply at one side of the automobile fails, the other side of the automobile can keep working normally. In the automatic driving scheme of L2+ and above, the PNG is an intelligent switch for realizing fusion or isolation of a main power supply network and an auxiliary power supply network in order to ensure power supply of ADAS and other modules, and has the function of monitoring voltage and current on the power supply network when the PNG is in a CAN wake-up state, so as to judge whether power supply is abnormal; when the power supply parameter at one side is abnormal, the intelligent switch can react in a short time to realize the isolation of the main power supply network and the auxiliary power supply network, and then if the fault disappears, the switch is closed to restore the fusion state of the power supply network.

Currently, in order to ensure the rationality and functional correctness of PNG product design, multiple rounds of testing are often required in the design and development process of PNG. The conventional test scheme needs manual wire bonding and is matched with a plurality of test instruments for multi-round test, and the mode has the problems of complex environment construction, long test time, easy misoperation, misjudgment and the like, and can not automatically, efficiently and accurately test the PNG controller, so that the reliability of test results is difficult to ensure.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provide an automatic test system for the PNG controller, which can automatically, efficiently and accurately test the PNG controller.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides an automatic test system of PNG controller, includes testboard rack, host computer and is used for installing the test needle bed of fixed piece that awaits measuring, the testboard rack is connected with test needle bed, host computer respectively, be provided with master control unit, power module, load module, data acquisition module and signal transfer case in the testboard rack, master control unit is connected with the host computer, signal transfer case is connected with the test needle bed.

Further, the main control unit is connected with the upper computer through a signal bus.

Further, the signal transfer box is connected with the test needle bed through a wire harness.

Further, PDU (Power Distribution Unit, high-voltage distribution unit) is also arranged in the test bench cabinet.

Further, the power module is specifically IT6512C.

Further, the load module is specifically IT8514c+.

Further, the test needle bed comprises a carrier plate for placing the to-be-tested piece, a needle plate is arranged below the carrier plate, and a pressing head capable of moving up and down is arranged above the carrier plate.

Further, the pressure head is connected with a controllable cylinder module.

Further, the needle plate is connected with a line concentration box, the wire harness is arranged inside the line concentration box, and a burner is arranged in the line concentration box.

Further, the pressure head is installed and fixed through the fixing module.

The specific use and working process of the PNG controller automatic test system are as follows:

Placing a piece to be tested (namely a PCB of the PNG controller) on a carrier plate of the test needle bed, wherein the pressure head is positioned at an initial height position;

connecting a needle plate of the test needle bed with a signal transfer box through a wire harness in the wire collection box;

Connecting a main control unit of the test needle bed with an upper computer;

The pressure head of the test needle bed moves downwards to press the tested piece until the tested piece contacts with the needle plate, the test table cabinet is started, and test signal data are acquired from the test needle bed and then transmitted to the upper computer.

Compared with the prior art, the utility model has the following advantages:

1. The utility model is characterized in that a test bed cabinet, an upper computer and a test needle bed for installing and fixing a piece to be tested are arranged, wherein the test bed cabinet is respectively connected with the test needle bed and the upper computer, a main control unit, a power supply module, a load module, a data acquisition module and a signal transfer box are arranged in the test bed cabinet, the main control unit is connected with the upper computer, and the signal transfer box is connected with the test needle bed. The test needle bed and the signal transfer box are utilized to replace the original manual welding wire and wiring process, the power supply, the load and the data acquisition module integrated in the test bench cabinet are utilized to replace various test instrument equipment in the original manual test, and the automatic, efficient and accurate test process can be realized by combining the upper computer.

2. The utility model adopts an independent test needle bed, designs a carrier plate for placing a piece to be tested, is provided with a needle plate below the carrier plate, is provided with a pressure head capable of moving up and down above the carrier plate, and connects the needle plate with a wire collecting box, a wire harness connected with a signal switching box is arranged inside the wire collecting box, and a burner is arranged in the wire collecting box. After the pressure head moves downwards and presses down the tested piece to be in contact with the needle plate, the contacted test point position can be led into the line concentration box, so that the test needle bed can lead out the test signal of the tested piece, and the test signal is led into the test board cabinet for detection through the wire harness, so that the complex wiring process in the original test process can be greatly simplified, the tested piece can be quickly connected, and the signal can be transmitted to the test board cabinet.

3. The utility model integrates the main control unit, the power supply module, the load module and the data acquisition module in the cabinet of the test bench, can automatically provide input and output signals required by the test and automatically process the input and output signals, and adopts the general type existing product functional module, thereby further improving the application range and providing the reusability degree of the utility model.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIGS. 2a and 2b are schematic views showing the structure of a test bed according to the present utility model;

Wherein: 1. the test bench comprises a test bench cabinet, 2, an upper computer, 3, a test needle bed, 11, a main control unit, 12, a power module, 13, a load module, 14, a data acquisition module, 15, a signal transfer box, 31, a carrier plate, 32, a needle plate, 33, a pressure head, 34, a line concentration box, 35 and a fixing module.

Detailed Description

The utility model will now be described in detail with reference to the drawings and specific examples.

Examples:

As shown in fig. 1, an automatic PNG controller testing system includes a testing table cabinet 1, an upper computer 2 and a testing needle bed 3 for installing and fixing a piece to be tested, the testing table cabinet 1 is respectively connected with the testing needle bed 3 and the upper computer 2, a main control unit 11, a power supply module 12, a load module 13, a data acquisition module 14 and a signal transfer box 15 are arranged in the testing table cabinet 1, the main control unit 11 is connected with the upper computer 2, and the signal transfer box 15 is connected with the testing needle bed 3. In this embodiment, the main control unit 11 is connected with the upper computer 2 through a signal bus, and the signal transfer box 15 is connected with the test needle bed 3 through a wire harness.

In addition, PDU is also arranged in the test bench cabinet 1, the power module 12 adopts IT6512C, and the load module 13 adopts IT8514C+.

As shown in fig. 2a and 2b, the test needle bed 3 includes a carrier plate 31 for placing a workpiece to be tested, a needle plate 32 is disposed below the carrier plate 31, a pressing head 33 capable of moving up and down is disposed above the carrier plate 31, the pressing head 33 is connected with a controllable cylinder module, and the pressing head 33 is installed and fixed by a fixing module 35.

The needle plate 32 is connected with a wire collecting box 34, the wire harness is arranged inside the wire collecting box 34, and a burner is arranged in the wire collecting box 34.

The specific use and working process of the PNG controller automatic test system provided by the scheme are as follows:

Connecting a main control unit of the test needle bed with an upper computer;

In summary, the solution actually includes three parts, namely a test bench cabinet, a test needle bed and an upper computer. The test bench cabinet integrates a main control unit, a power supply module, a load module and a data acquisition module, and can provide input and output signals required by test and automatically process the input and output signals. The test needle bed is used for leading out test signals on the PCB of the tested piece, and leading the test signals into the test board cabinet for detection through the test wire harness. The upper computer can provide a man-machine interaction interface for editing a test simulation environment, executing test cases and analyzing and processing test reports.

By adopting the technical scheme, the original manual testing process can be converted into full-automatic testing, the real use scene of the PNG can be simulated, the testing work can be automatically completed, and the testing accuracy and timeliness are improved.

The test needle bed and the signal switching wire harness are utilized to replace the original manual wire welding and wiring process (the independent needle bed is designed, the complex wiring process in the original test process is simplified, the tested piece PCB can be quickly connected and signals can be transmitted to the cabinet of the test bench), the internal integrated power supply, the load and the data acquisition module of the test bench replace various test instrument devices in the original manual test (the general existing functional module is directly adopted), the application range is wide, the multiplexing degree is high), and meanwhile, the upper computer is combined to realize the test automation process (the full-automatic test process is executed, and the test efficiency and the test accuracy are improved).

Claims

1. The utility model provides an automatic test system of PNG controller, its characterized in that, including testboard rack (1), host computer (2) and be used for installing test needle bed (3) of fixed piece that awaits measuring, testboard rack (1) are connected with test needle bed (3), host computer (2) respectively, be provided with master control unit (11), power module (12), load module (13), data acquisition module (14) and signal transfer case (15) in testboard rack (1), master control unit (11) are connected with host computer (2), signal transfer case (15) are connected with test needle bed (3).

2. A PNG controller automated test system according to claim 1 wherein the master control unit (11) is connected to the host computer (2) via a signal bus.

3. A PNG controller automated test system according to claim 1 wherein said signal pod (15) is connected to the test bed (3) by a harness.

4. A PNG controller automated test system according to claim 1, wherein a PDU is also provided within the test stand cabinet (1).

5. A PNG controller automated test system according to claim 1, wherein the power module (12) is specifically IT6512C.

6. A PNG controller automated test system according to claim 1, wherein the load module (13) is specifically IT8514c+.

7. A PNG controller automated test system according to claim 3 wherein the test bed (3) comprises a carrier plate (31) for placing the part to be tested, a needle plate (32) is provided below the carrier plate (31), and a ram (33) movable up and down is provided above the carrier plate (31).

8. A PNG controller automated test system according to claim 7 wherein said ram (33) is connected with a controllable cylinder module.

9. A PNG controller automated test system according to claim 7 wherein said needle board (32) is connected to a hub (34), said wiring harness is mounted within said hub (34), and said hub (34) is internally provided with a burner.

10. A PNG controller automated test system according to claim 7 wherein said ram (33) is mounted and secured by a securing module (35).