CN214014249U - Vehicle-mounted CANFD bus topology simulation equipment - Google Patents
Vehicle-mounted CANFD bus topology simulation equipment Download PDFInfo
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- CN214014249U CN214014249U CN202022780535.9U CN202022780535U CN214014249U CN 214014249 U CN214014249 U CN 214014249U CN 202022780535 U CN202022780535 U CN 202022780535U CN 214014249 U CN214014249 U CN 214014249U
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Abstract
The utility model discloses a topological simulation equipment of on-vehicle CANFD bus, include: the system comprises a rack, a wire harness, a vehicle-mounted electric control module arrangement board, a vehicle-mounted electric control module and a plurality of physical fault injection board cards, wherein the vehicle-mounted electric control module arrangement board is arranged on the rack; the vehicle-mounted electric control module comprises a plurality of vehicle-mounted electric control units which are in signal communication through wire harnesses, each vehicle-mounted electric control unit corresponds to a vehicle-mounted electric controller of a vehicle to be tested, which corresponds to the vehicle-mounted CANFD bus topology simulation equipment, and the wire harnesses form a CANFD bus; the physical fault injection board cards are respectively connected with the vehicle-mounted electric control module arrangement board, the physical fault injection board cards are connected with a CANFD bus of the vehicle-mounted electric control module, and the physical fault injection board cards are used for carrying out wiring harness fault processing on the CANFD bus. The utility model discloses on-vehicle CANFD bus topology simulation equipment can simulate the examination vehicle that awaits measuring to conveniently carry out the emulation test.
Description
Technical Field
The utility model relates to a vehicle test technical field, in particular to topological simulation equipment of on-vehicle CANFD bus.
Background
At present, in the vehicle model development process, due to the increase of the number of the vehicle-mounted electronic control units 1 and the increasing complexity of the vehicle-mounted network wiring harness structure, the interference of the physical electromagnetic environment of the vehicle-mounted bus on the vehicle-mounted CANFD bus cannot be verified in a complete virtual simulation mode. If the physical electromagnetic environment of the CANFD bus cannot be verified in the design and development stage, the probability of failure in the subsequent real-time stage is increased, which may result in that the physical topology structure and the wiring harness of the vehicle-mounted CANFD bus cannot be modified or the modification cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a topological simulation equipment of on-vehicle CANFD bus, aim at solving present on-vehicle bus physics electromagnetic environment to the unable technical problem that passes through the emulation test of the interference of on-vehicle CANFD bus.
In order to achieve the above object, the utility model provides an on-vehicle CANFD bus topology simulation equipment includes:
a rack;
a wire harness;
the vehicle-mounted electric control module arrangement plate is arranged on the rack;
the vehicle-mounted electronic control module comprises a plurality of vehicle-mounted electronic control units which are in signal communication through wire harnesses, each vehicle-mounted electronic control unit corresponds to a vehicle-mounted electronic controller of a vehicle to be tested, which corresponds to the vehicle-mounted CANFD bus topology simulation equipment, and the wire harnesses form a CANFD bus;
the physical fault injection board cards are respectively connected with the vehicle-mounted electric control module arrangement board, the physical fault injection board cards are connected with a CANFD bus of the vehicle-mounted electric control module, and the physical fault injection board cards are used for carrying out harness fault processing on the CANFD bus.
Preferably, the plurality of physical fault injection board cards are respectively connected with the vehicle-mounted electronic control units in a one-to-one correspondence manner.
Preferably, the vehicle-mounted CANFD bus topology simulation device further includes:
the wiring harness capacitive reactance impedance injection board cards are connected with the vehicle-mounted electronic control module arrangement board respectively, the wiring harness capacitive reactance impedance injection board cards are connected on a CANFD bus of the vehicle-mounted electronic control module in series respectively, and the physical fault injection board card is used for injecting capacitive reactance impedance into the CANFD bus.
Preferably, the vehicle-mounted electric control module arrangement board is vertically arranged on the rack, a plurality of meshes are formed in the vehicle-mounted electric control module arrangement board, and the physical fault injection board card and the wiring harness capacitive impedance injection board card are connected with the vehicle-mounted electric control module arrangement board through the meshes.
Preferably, the vehicle-mounted electric control module arrangement plate is vertically arranged on the rack, the vehicle-mounted electric control module arrangement plate comprises a mesh plate provided with a plurality of meshes and a plurality of trays connected with the mesh plate, and the physical fault injection plate is arranged on the trays.
Preferably, the wire harness capacitive impedance injection board card is arranged between two adjacent trays.
Preferably, the length of the wire harness connecting each vehicle-mounted electric control unit is the same as the length of the wire harness of the vehicle-mounted electric controller of the vehicle to be tested corresponding to the vehicle-mounted CAN FD bus topology simulation device.
Preferably, the vehicle-mounted CANFD bus topology simulation device further comprises a test device, and the test device comprises one or more of an oscilloscope, a multimeter, and an EMI receiver.
Preferably, the vehicle-mounted CANFD bus topology simulation device further includes a control module with a display screen, the control module is in signal connection with the vehicle-mounted electronic control module, the physical fault injection board, the wire harness capacitive impedance injection board and the test device, respectively, and the control module is configured to send a control instruction to the physical fault injection board and the wire harness capacitive impedance injection board and receive test data sent by the test device.
The utility model discloses in the utility model, through setting up the on-vehicle electrical control unit arrangement board, make each on-vehicle electrical control unit can simulate the vehicle to be tested and arrange the on-vehicle electrical control unit; various wiring harness faults can be injected into the vehicle-mounted electronic control unit by arranging the physical fault injection board card so as to realize simulation test on the vehicle to be tested.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of a module structure of a vehicle-mounted can fd bus topology simulation device according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Vehicle-mounted |
2 | CANFD |
| 3 | Physical fault |
5 | Wire harness capacitive |
| 7 | |
9 | Control module |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied.
The utility model provides a topological simulation equipment of on-vehicle CANFD bus.
In the embodiment of the present invention, as shown in fig. 1, a vehicle-mounted can fd bus topology simulation device includes a rack, a wiring harness, a vehicle-mounted electrical control unit arrangement board, a vehicle-mounted electrical control module, and a plurality of physical fault injection board cards 3, wherein the vehicle-mounted electrical control unit arrangement board is arranged on the rack; the vehicle-mounted electric control module comprises a plurality of vehicle-mounted electric control units 1 which are in signal communication through wire harnesses, each vehicle-mounted electric control unit 1 corresponds to a vehicle-mounted electric controller of a vehicle to be tested corresponding to the vehicle-mounted CANFD bus topology simulation equipment one by one, and the wire harnesses form a CANFD bus 2; the physical fault injection board cards 3 are respectively connected with the vehicle-mounted electric control unit arrangement board, the physical fault injection board cards 3 are connected with the CANFD bus 2 of the vehicle-mounted electric control module, and the physical fault injection board cards 3 are used for carrying out wiring harness fault processing on the CANFD bus 2.
The rack can be in a table shape, so that a user can conveniently place various testing devices 7 and assemble the vehicle-mounted electronic control unit 1. The vehicle to be tested is provided with a plurality of vehicle-mounted controllers, namely, the vehicle-mounted controllers are in one-to-one correspondence with the vehicle-mounted electronic control units, and the vehicle-mounted electronic control units 1 are arranged on the vehicle-mounted electronic control unit arrangement board for connection according to the connection relation and the positions of the vehicle-mounted controllers in the vehicle to be tested. One or more plug-in terminals are arranged on the physical fault injection board card 3 and are connected with a CAN FD bus 2, a power line, a ground line and an I/O line of the vehicle-mounted electric control unit 1 through the plug-in terminals. The wire harness fault treatment specifically comprises wire harness faults such as open circuit, short circuit and mutual short circuit, so that various working conditions are simulated, and the performance of the vehicle-mounted electronic control unit 1 is tested.
In the utility model, by arranging the vehicle-mounted electric control unit arrangement plate, each vehicle-mounted electric control unit 1 can simulate a vehicle to be tested to arrange the vehicle-mounted electric control unit 1; various wiring harness faults can be injected into the vehicle-mounted electronic control unit 1 by arranging the physical fault injection board card 3, so that the simulation test of the vehicle to be tested is realized.
Further, the physical fault injection board cards 3 are respectively connected with the vehicle-mounted electronic control units 1 in a one-to-one correspondence manner. Namely, one vehicle-mounted electronic control unit 1 is connected in series with one physical fault injection board card 3, so that the condition of the wire harness outlet fault corresponding to each vehicle-mounted electronic control unit 1 can be controlled.
Still further, the vehicle-mounted CANFD bus topology simulation device further includes a plurality of harness capacitive impedance injection board cards 5, the plurality of harness capacitive impedance injection board cards 5 are respectively connected with the vehicle-mounted electronic control unit arrangement board, the harness capacitive impedance injection board cards 5 are respectively connected in series to a CANFD bus 2 of the vehicle-mounted electronic control module, and the physical fault injection board card 3 is configured to inject capacitive impedance into the CANFD bus 2. A person skilled in the art can set the harness capacitive reactance impedance injection board 5 to be connected in series at the position of the can fd bus 2 as required, so that the harness fault of the capacitive reactance impedance can be simulated by the harness capacitive reactance impedance injection board 5.
In one embodiment, the on-board electrical control unit arrangement board is vertically arranged on the rack, a plurality of meshes are formed in the on-board electrical control unit arrangement board, and the physical fault injection board 3 and the wiring harness capacitive impedance injection board 5 are connected with the on-board electrical control unit arrangement board through the meshes. Namely, each physical fault injection board 3 and each wiring harness capacitive impedance injection board 5 are directly installed on the vehicle-mounted electronic control unit arrangement board by being inserted into each mesh.
In another embodiment, the vehicle-mounted electric control unit arranging plate is vertically arranged on the rack, the vehicle-mounted electric control unit arranging plate comprises a mesh plate provided with a plurality of meshes and a plurality of trays connected with the mesh plate, and the physical fault injection board card 3 is arranged on the trays. Namely, the physical fault injection board 3 is directly placed on the tray.
Further, the wire harness capacitive impedance injection board card 5 is arranged between two adjacent trays. So as to conveniently place the wiring harness capacitive reactance impedance injection board card 5 connected in series on the vehicle-mounted CANFD bus 2.
In an embodiment, the length of the wire harness connecting each vehicle-mounted electronic control unit is the same as the length of the wire harness of the vehicle-mounted electronic controller of the vehicle to be tested corresponding to the vehicle-mounted CANFD bus topology simulation device. Preferably, the specification of the wiring harness is in accordance with the vehicle to be tested to simulate the actual vehicle configuration to the maximum extent.
The vehicle-mounted CANFD bus topology simulation device further comprises a test device 7, wherein the test device 7 comprises one or more of an oscilloscope, a multimeter and an EMI receiver. The tester can select each test device 7 according to actual needs and connect or place each test device 7 to a suitable location.
The vehicle-mounted CANFD bus topology simulation device further comprises a control module 9 with a display screen, the control module 9 is in signal connection with the vehicle-mounted electronic control module, the physical fault injection board 3, the wiring harness capacitive reactance impedance injection board 5 and the test device 7 respectively, and the control module is used for sending a control instruction to the physical fault injection board 3 and the wiring harness capacitive reactance impedance injection board 5 and receiving test data sent by the test device 7. A control system can be displayed on a display interface provided by the display screen, and a tester sends a control instruction to each physical fault injection board card 3 and the wiring harness capacitive impedance injection board card 5 through the control system and displays received test data. In an embodiment, the control system is a system that integrates a fault injection board card and a control program of a capacitive reactance impedance injection board card and controls a UI interface on a visual studio development software system. The UI interface can automatically generate a corresponding number of control panels according to the number of the vehicle-mounted electronic control units 1 and the number of the required capacitive impedance injection board cards. The control panel comprises control buttons such as each board card identity ID, each fault injection type able/disable button, capacitive reactance board card identity ID, capacitive reactance digital control, each board card control enabling delay time control, program control command sending buttons and the like, so that a user can operate the corresponding button to send a corresponding control command. The control module 9 CAN also display information parameters such as two kinds of board program control CAN bus message data, two kinds of board program control CAN bus data sending timestamps, CANFD bus message data sent by the vehicle-mounted electric control unit 1, CANFD bus message sending timestamps sent by the vehicle-mounted electric control unit 1, and the like; and the on-board/off-board status indicator lamp can be displayed when the two boards run, the self-checking status feedback information of the board can be displayed, and the like.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (9)
1. The vehicle-mounted CANFD bus topology simulation device is characterized by comprising:
a rack;
a wire harness;
the vehicle-mounted electric control module arrangement plate is arranged on the rack;
the vehicle-mounted electronic control module comprises a plurality of vehicle-mounted electronic control units which are in signal communication through wire harnesses, each vehicle-mounted electronic control unit corresponds to a vehicle-mounted electronic controller of a vehicle to be tested, which corresponds to the vehicle-mounted CANFD bus topology simulation equipment, and the wire harnesses form a CANFD bus;
the physical fault injection board cards are respectively connected with the vehicle-mounted electric control module arrangement board, the physical fault injection board cards are connected with a CANFD bus of the vehicle-mounted electric control module, and the physical fault injection board cards are used for carrying out harness fault processing on the CANFD bus.
2. The vehicle-mounted CANFD bus topology simulation device of claim 1, wherein a plurality of the physical fault injection boards are respectively connected with the vehicle-mounted electronic control units in a one-to-one correspondence manner.
3. The in-vehicle CANFD bus topology simulation device of claim 2, wherein the in-vehicle CANFD bus topology simulation device further comprises:
the wiring harness capacitive reactance impedance injection board cards are connected with the vehicle-mounted electronic control module arrangement board respectively, the wiring harness capacitive reactance impedance injection board cards are connected on a CANFD bus of the vehicle-mounted electronic control module in series respectively, and the physical fault injection board card is used for injecting capacitive reactance impedance into the CANFD bus.
4. The vehicle-mounted CANFD bus topology simulation device of claim 3, wherein the vehicle-mounted electronic control module placement board is vertically arranged on the rack, a plurality of meshes are arranged on the vehicle-mounted electronic control module placement board, and the physical fault injection board card and the harness capacitive reactance impedance injection board card are connected with the vehicle-mounted electronic control module placement board through the meshes.
5. The vehicle-mounted CANFD bus topology simulation device of claim 3, wherein the vehicle-mounted electronic control module arrangement board is vertically arranged on the rack, the vehicle-mounted electronic control module arrangement board comprises a mesh plate provided with a plurality of meshes and a plurality of trays connected with the mesh plate, and the physical fault injection board is arranged on the trays.
6. The vehicle-mounted CAN FD bus topology simulation device of claim 5, wherein the wire harness capacitive reactance impedance injection board card is disposed between two adjacent trays.
7. The in-vehicle CANFD bus topology emulation device of claim 1,
and the length of the wire harness connected with each vehicle-mounted electric control unit is the same as that of the wire harness of the vehicle-mounted electric controller of the vehicle to be tested corresponding to the vehicle-mounted CANFD bus topology simulation equipment.
8. The in-vehicle CANFD bus topology simulation device of any of claims 3-7, further comprising a testing device comprising one or more of an oscilloscope, a multimeter, an EMI receiver.
9. The vehicle-mounted CANFD bus topology simulation device of claim 8, further comprising a control module with a display screen, the control module being in signal connection with the vehicle-mounted electronic control module, the physical fault injection board, the harness capacitive reactance impedance injection board and the test device, respectively, the control module being configured to send a control instruction to the physical fault injection board and the harness capacitive reactance impedance injection board and receive test data sent by the test device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022780535.9U CN214014249U (en) | 2020-11-26 | 2020-11-26 | Vehicle-mounted CANFD bus topology simulation equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022780535.9U CN214014249U (en) | 2020-11-26 | 2020-11-26 | Vehicle-mounted CANFD bus topology simulation equipment |
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| CN214014249U true CN214014249U (en) | 2021-08-20 |
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| CN202022780535.9U Active CN214014249U (en) | 2020-11-26 | 2020-11-26 | Vehicle-mounted CANFD bus topology simulation equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115297005A (en) * | 2022-07-06 | 2022-11-04 | 奇瑞汽车股份有限公司 | Topology simulation method and system for automobile network communication architecture |
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2020
- 2020-11-26 CN CN202022780535.9U patent/CN214014249U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115297005A (en) * | 2022-07-06 | 2022-11-04 | 奇瑞汽车股份有限公司 | Topology simulation method and system for automobile network communication architecture |
| CN115297005B (en) * | 2022-07-06 | 2024-03-26 | 奇瑞汽车股份有限公司 | Topology simulation method and system for automobile network communication architecture |
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