CN220252080U - Multi-channel load capacity testing system based on VT system - Google Patents
Multi-channel load capacity testing system based on VT system Download PDFInfo
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- CN220252080U CN220252080U CN202321928701.2U CN202321928701U CN220252080U CN 220252080 U CN220252080 U CN 220252080U CN 202321928701 U CN202321928701 U CN 202321928701U CN 220252080 U CN220252080 U CN 220252080U
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Abstract
The utility model discloses a multi-channel load capacity test system based on a VT system, which comprises a PC unit, a power supply unit and a test unit, wherein the PC unit is connected with the power supply unit; the test unit comprises a relay board card and an electronic load board card, wherein the relay board card is provided with a plurality of node switches, and the input/output end of each node switch is respectively connected with a corresponding output channel of the electronic control unit to be tested and the electronic load board to form a plurality of output load test channels of the electronic control unit to be tested; and the PC unit is respectively connected with the electronic control unit to be tested and the electronic load board in a control manner. According to the scheme, the relay board card of the VT system is used for connecting a plurality of output channels of the tested ECU to the same electronic load channel, the ports of the electronic load board card are expanded by the relay board card of the VT system, and the 12-channel load capacity test is carried out at one time.
Description
Technical Field
The utility model relates to the technical field of electronic test equipment, in particular to a multi-channel load capacity test system based on a VT system.
Background
The automotive electronics industry uses a vickers Test System (VT Test System) to Test the load capacity of several output channels.
The ECU is an electronic control unit to be tested, and has a plurality of output channels for testing output load capacity, for example, the ECU needs to test the load capacity of 12 output channels at one time.
The existing VT board VT1004A provides an electronic load function, but load channels are limited, and only 4 electronic load channels are provided for one VT1004A board, if the load capacity of 12 output channels is to be tested, 3 VT1004A boards are needed at this time, but the cost is increased by adding VT1004A boards, meanwhile, the requirements of each project on VT1004A are different, the reusability of configuring too many VT1004A boards for one project is not high, and the cost is greatly increased.
And if the cost is not expected to be increased, the test channels are tested in batches, and 4 channels are tested at a time, so that wiring needs to be manually adjusted, and the test efficiency is greatly reduced.
From this, it can be seen how to improve the Test efficiency of the VT Test System.
Disclosure of Invention
Aiming at the technical problem of low Test efficiency of the existing VT Test System, the utility model aims to provide a multi-channel load capacity Test System based on a VT System, which can Test 12 channels of load capacity at one time, and on the basis, a multi-channel load capacity Test method of the VT System is also provided, so that the Test efficiency of the VT Test System is greatly improved, and the problems in the prior art are well overcome.
In order to achieve the above purpose, the utility model provides a multi-channel load capacity testing system based on a VT system, which comprises a PC unit, a power supply unit and a testing unit; the test unit comprises a relay board card and an electronic load board card, wherein the relay board card is provided with a plurality of node switches, and the input/output end of each node switch is respectively connected with a corresponding output channel of the electronic control unit to be tested and the electronic load board to form a plurality of output load test channels of the electronic control unit to be tested; and the PC unit is respectively connected with the electronic control unit to be tested and the electronic load board in a control manner.
Further, the PC unit is connected with the electronic control unit to be tested through a transceiver.
Further, a control module is arranged in the PC unit and is respectively in control connection with the electronic control unit to be tested and the electronic load board.
Further, the plurality of node switches of the relay board card respectively comprise a first node and a second node, the first node is correspondingly connected with an output channel of the electronic control unit to be tested, and the second node is connected with the electronic load board.
Further, the electronic load board comprises an anode and a cathode, wherein the anode is connected with a second node in the relay board card, and the cathode is connected with a wire grounding end in the electronic control unit to be tested.
Further, the power supply unit comprises a direct current power supply and a power supply board; the output end of the direct current power supply is connected with the input end of the power panel card, and the output end of the power panel card is connected with the electronic control unit to be tested.
According to the multi-channel load capacity testing system based on the VT system, the relay board card of the VT system is used for connecting a plurality of output channels of the tested ECU to the same electronic load channel, ports of the electronic load board card are expanded by the relay board card of the VT system, and 12-channel load capacity testing is achieved at one time.
Drawings
The utility model is further described below with reference to the drawings and the detailed description.
FIG. 1 is a diagram of a test system for multi-channel load capacity of the present VT-based system;
fig. 2 is a flowchart of a method for testing multi-channel load capacity based on VT system.
The following is a description of the components in the drawings:
100. power supply unit 110, dc power supply 120, power strip 200, electronic control unit under test 300, transceiver 400, pc unit 600, test unit 610, relay strip 620, and electronic load strip.
Detailed Description
The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.
Aiming at the technical problem of low Test efficiency of the existing VT Test system, the utility model aims to provide a multi-channel load capacity Test system based on a VT system, which is characterized in that a plurality of output channels of an ECU to be tested are connected to the same electronic load channel by using a relay board card of the VT system, and the load capacity Test of 12 channels is realized at one time by using the relay board card of the VT system.
Further, the multi-channel load capacity test system based on the VT system comprises a PC unit 400, a test unit 600, an electronic control unit 200 to be tested and a power supply unit 100.
Further, the power supply units are respectively connected with the test unit 600 and the electronic control unit 200 to be tested, so that the test unit 600 and the electronic control unit 200 to be tested can be powered for cruising.
Further, the PC unit 400 is connected to the electronic control unit 200 to be tested, and the PC unit 400 controls the electronic control unit 200 to be tested, so as to implement the test of the 12-path output load of the electronic control unit 200 to be tested.
The electronic control unit 200 to be tested is connected with the test unit 600, and the 12-path output load capacity of the electronic control unit 200 to be tested is tested through the test unit 600.
The test unit 600 is connected to the PC unit 400, and outputs the test result to the PC unit 400 for display.
The power Supply unit 100 is configured to Supply power to the electronic control unit 200 to be tested, and the power Supply unit 100 includes a direct current power Supply 110 (DC Supply) and a power board 120.
The output end of the dc power supply 110 is connected to the input end of the power board 120, and is used for supplying power to the power board 120.
The power output end of the power board 120 is connected with the power supply interface of the electronic control unit 200 to be tested, and is used for converting the direct-current power supply 110 into an alternating-current power supply and transmitting the alternating-current power supply to the electronic control unit 200 to be tested, so as to supply power to the electronic control unit 200 to be tested.
The power board 120 is not limited in this embodiment, and VT7001 may be preferably used, and the power board of this embodiment can meet the output power range of the component parameters in the VT test system.
Further, the electronic control unit 200 to be tested is provided with thirteen pins, and the thirteen pins are respectively connected with the test unit 600 through leads.
Twelve pins are Out1 to Out12 respectively, and Out1 to Out12 are 12-path output loads of the electronic control unit 200 to be tested respectively; the thirteenth pin is GND, which is the reference ground for the first twelve output channels.
Further, the electronic control unit 200 to be tested is connected with the PC unit 400 in a matching manner through the transceiver 300, the electronic control unit 200 to be tested can be connected with the PC unit 400 through the transceiver 300, and the 12-path output load of the electronic control unit 200 to be tested is tested through the control of the PC unit.
Further, the test unit 600 includes a relay board 610 and an electronic load board 620.
The electronic load board 620 provides 4 paths of electronic load channels, each path of electronic load channel is a Loada end and a Loadb end, and the Loada end and the Loadb end respectively represent the positive and negative poles on the electronic load board 620. The Loadb end is connected to the GND pin in the electronic control unit 200 to be tested.
The relay board 610 is provided with 12 groups of channels, wherein each channel comprises an end a and an end b, the end a of the 12 channels in the relay board 610 is a normally open node a of the relay board 610, the normally open node a is respectively corresponding to and correspondingly connected with 12 output channels in the electronic control unit 200 to be tested, 12 load output test channels are formed, and the switching of the 12 output channels is controlled through the normally open node in the relay board 610.
The b end in the 12 paths of channels in the relay board card 610 is the node b of the relay board card 610, and the node b in the relay board card 610 is all connected to the Loada end in the electronic load board card 620. And (3) opening the node a, and accessing the output channel corresponding to the node a to the Loada end of the electronic load board card 620 through the node b for testing.
The following illustrates the testing procedure of the present utility model in specific applications, and the following needs to be described herein as a specific application example of the present solution, which is not limited to the present solution, and specifically refer to fig. 2:
(1) Building a testing environment:
connecting the power supply unit 100 with the electronic control unit 200 to be tested, and connecting the electronic control unit 200 to be tested with the PC unit 100 through the transceiver 300;
the 12 paths of channels in the electronic control unit 200 to be tested are respectively connected with the normally open node a of the relay board 610 in the test unit 600 to form 12 paths of load output channels;
GND in the electronic control unit 200 to be tested is connected with the Loadb end in the electronic load board 620;
node b in the relay board 610 is connected to the Loada end in the electronic load board 620.
The power panel card converts direct-current power Supply DC Supply into alternating-current power Supply to Supply power for the ECU.
(2) Closing a first node a in the relay board 610, namely closing a node b in the relay board 610, and simultaneously opening a first channel Out1 corresponding to the first node a to realize connection of an output channel of the electronic control unit 200 to be tested and the electronic load board 620, so that the Out1 of the electronic control unit 200 to be tested is connected to the Loada of the electronic load board 620.
(3) The PC unit 400 opens the channel of the electronic load card 620 and sets parameters including, in particular, output mode, current level, and switch enable.
(4) The output port OUT1 of the ECU chip 200 is driven by the PC unit 400 to output.
(5) A current-voltage determination parameter is set on the PC unit 400.
(6) The actual current and voltage values of the OUT1 port obtained by the electronic load board 620 are read by the PC unit 400.
(7) The PC unit 400 compares the read actual current and voltage values of the OUT1 port with the set current-voltage determination parameters to determine whether the current and voltage values are within a defined range.
(8) The test system is restored to step 1.
(9) According to the steps 1-7, the output load capacity of the remaining 11 ports of the ECU is tested and a test report is generated.
The port of the electronic load board 620 is expanded by adding the relay board 610 in the scheme, because the electronic load board 620 has only 4 paths of independent electronic load outputs, and the number of loads needed to be used in practical application is far more than 4 paths, therefore, the test of the load capacity of multiple output channels is realized by adding the relay board 610.
According to the multi-channel load capacity testing System based on the VT System, which is formed by the scheme, under the existing board card configuration of the VT Test System, a relay board card is additionally arranged to realize the 12-channel load capacity testing at one time, so that the load capacity testing of all output channels of the ECU is realized, the cost is saved, and the testing efficiency is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The multi-channel load capacity testing system based on the VT system comprises a PC unit and a power supply unit, and is characterized by further comprising a testing unit; the test unit comprises a relay board card and an electronic load board card, wherein the relay board card is provided with a plurality of node switches, and the input/output end of each node switch is respectively connected with a corresponding output channel of the electronic control unit to be tested and the electronic load board to form a plurality of output load test channels of the electronic control unit to be tested; and the PC unit is respectively connected with the electronic control unit to be tested and the electronic load board in a control manner.
2. The VT-system-based multichannel loadability testing system according to claim 1, wherein the PC unit is connected to the electronic control unit to be tested through a transceiver.
3. The VT system-based multichannel load capacity testing system according to claim 1, wherein a control module is disposed in the PC unit and is respectively in control connection with the electronic control unit to be tested and the electronic load board.
4. The VT system-based multichannel load capacity testing system according to claim 1, wherein the plurality of node switches of the relay board respectively include a first node and a second node, the first node is correspondingly connected with the output channel of the electronic control unit to be tested, and the second node is connected with the electronic load board.
5. The VT system-based multichannel loadability testing system according to claim 4, wherein the electronic loadboard includes a positive electrode and a negative electrode, the positive electrode is connected to a second node in the relay board, and the negative electrode is connected to a ground terminal of a wire in the electronic control unit to be tested.
6. The VT system-based multichannel load capability testing system according to claim 1, wherein the power unit includes a dc power supply and a power board; the output end of the direct current power supply is connected with the input end of the power panel card, and the output end of the power panel card is connected with the electronic control unit to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321928701.2U CN220252080U (en) | 2023-07-21 | 2023-07-21 | Multi-channel load capacity testing system based on VT system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321928701.2U CN220252080U (en) | 2023-07-21 | 2023-07-21 | Multi-channel load capacity testing system based on VT system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220252080U true CN220252080U (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321928701.2U Active CN220252080U (en) | 2023-07-21 | 2023-07-21 | Multi-channel load capacity testing system based on VT system |
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| Country | Link |
|---|---|
| CN (1) | CN220252080U (en) |
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2023
- 2023-07-21 CN CN202321928701.2U patent/CN220252080U/en active Active
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