CN215268313U - Domain controller system-level network automatic test system - Google Patents

Abstract

The utility model relates to a car bus network field provides an automatic test system of domain controller system level network, a serial communication port, include: the device comprises a power supply module, a PC (personal computer), an oscilloscope, an interface panel, a VTS (video tape service) data acquisition board card, a CAN bus interferometer VH6501, a CAN bus acquisition card VN1640, a wire breaker and a Labcar yellow board; the power supply module is electrically connected with the PC, the oscilloscope and the VTS data acquisition board card; the VTS data acquisition board card is electrically connected with the interface panel and the CAN bus interferometer VH 6501; the oscilloscope is electrically connected with the CAN bus interferometer VH6501 and the CAN bus acquisition card VN 1640; the CAN bus acquisition card VN1640 is electrically connected with a PC computer; the interface panel is electrically connected with the wire breaker; the wire cutter is electrically connected with the Labcar yellow board vehicle. The utility model discloses a corresponding work is accomplished to automatic test system, not only can shorten the research and development cycle, improvement work efficiency that also can be great reduces the error that the human factor caused, ensures the stability of all controller communications.

Description

Domain controller system-level network automatic test system

Technical Field

The utility model relates to a car bus network field especially relates to an automatic test system of domain controller system level network.

Background

The automobile bus network rack test is an essential link in the automobile type development process, the technological progress is gradually changed, and various intelligent technologies such as Adas driving assistance technology, unmanned driving technology and the like are applied to automobiles more and more widely and are gradually mature; the diversity of functions causes the number of electronic control units (namely, ECU units) on the whole vehicle to continuously rise, and at present, the number of ECUs of many high-end vehicle types is as many as dozens, and the ECUs are distributed at various positions in an electronic system of the vehicle, so that the communication technology among the electronic control units also faces the same challenge. With the increasing number of ECUs with corresponding communication capabilities and the increasing challenge of relevant test verification, the traditional non-automatic test means in the prior art have the technical problems of low coverage, low efficiency and poor test consistency.

The above is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at, solve among the prior art test means coverage low, the inefficiency and the poor technical problem of test uniformity, the utility model provides an automatic test system of domain controller system level network, include: the device comprises a power supply module, a PC (personal computer), an oscilloscope, an interface panel, a VTS (video tape service) data acquisition board card, a CAN bus interferometer VH6501, a CAN bus acquisition card VN1640, a wire breaker and a Labcar yellow board;

the power supply module is electrically connected with the PC, the oscilloscope and the VTS data acquisition board card; the VTS data acquisition board card is electrically connected with the interface panel and the CAN bus interferometer VH 6501; the oscilloscope is electrically connected with the CAN bus interferometer VH6501 and the CAN bus acquisition card VN 1640; the CAN bus acquisition card VN1640 is electrically connected with the PC computer; the interface panel is electrically connected with the wire breaker; the wire breaker is electrically connected with the Labcar yellow board vehicle.

Preferably, the electrical connection comprises: a power line connection, a ground line connection, a CAN high line CAN _ H connection, a CAN low line CAN _ L connection and a specific wake-up hard line connection.

Preferably, the Labcar yellow board vehicle houses n test devices: DUTs 1 to DUTn; all the test equipment is arranged in the Labcar yellow board vehicle according to the actual vehicle position; and the testing devices are electrically connected through low-voltage wiring harnesses.

Preferably, the wire breaker is automatically controlled by the VTS data acquisition board card; the wire breaker is used for controlling the open circuit and the short circuit of a power line, a ground line, a CAN high line CAN _ H, CAN low line CAN _ L and a specific awakening hard line of the single testing device and the whole Labcar yellow board vehicle.

Preferably, the power supply module includes: the power supply distribution unit PDU and the programmable power supply;

the power distribution unit PDU is externally connected with a 220V alternating current power supply; the power distribution unit PDU is used for providing 220V alternating current for the oscilloscope, the programmable power supply and the PC computer;

the programmable power supply is used for converting 220V alternating current into 12V alternating current.

Preferably, the programmable power supply is grounded in parallel with each of the test equipment, the interface panel, the VTS data acquisition board card, the oscilloscope, the CAN bus interferometer VH6501 and the CAN bus acquisition card VN 1640;

the program-controlled power supply is connected with each test device, the interface panel and the VTS data acquisition board card in series through a power line, a CAN high line CAN _ H and a CAN low line CAN _ L;

the VTS data acquisition board card is connected with the oscilloscope and the CAN bus interferometer VH6501 in parallel through a power line, a CAN high-line CAN _ H and a CAN low-line CAN _ L;

the CAN bus interferometer VH6501 and the CAN bus acquisition card VN1640 are connected in series through a power line, a CAN high-line CAN _ H and a CAN low-line CAN _ L.

The utility model discloses following beneficial effect has:

corresponding work is completed through an automatic test system, the research and development period can be shortened, the work efficiency can be greatly improved, errors caused by human factors are reduced, and the communication stability of all controllers is guaranteed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the programmable power supply of the present invention;

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, a domain controller system level network automated test system completes corresponding work through the automated test system, which not only can shorten the research and development period, but also can greatly improve the work efficiency, reduce errors caused by human factors, and ensure the communication stability of all controllers;

the method specifically comprises the following steps: the device comprises a power module, a PC (personal computer) comprising an industrial personal computer, an oscilloscope, an interface panel, a VTS (virtual terminal system) data acquisition board card, a CAN bus interferometer VH6501, a CAN bus acquisition card VN1640, a wire breaker and a Labcar yellow board;

the power supply module is electrically connected with the PC, the oscilloscope and the VTS data acquisition board card; the VTS data acquisition board card is electrically connected with the interface panel and the CAN bus interferometer VH 6501; the oscilloscope is electrically connected with the CAN bus interferometer VH6501 and the CAN bus acquisition card VN 1640; the CAN bus acquisition card VN1640 is electrically connected with the PC computer; the interface panel is electrically connected with the wire breaker; the wire breaker is electrically connected with the Labcar yellow board vehicle;

in the concrete implementation, the utility model discloses a VTS data acquisition integrated circuit board is a modular hardware system, and is a part of the execution hardware of the automatic test system of domain controller system level network; the VTS data acquisition board card can realize the control and monitoring of power signals, the network fault injection function, the IO resource supply required by the extensible tested node and the like; the design of modules in the VTS data acquisition board card can be flexibly configured and can be used in a plug-and-play mode; the power supply input signals of the measured controller mainly comprise storage battery power supply signals, ignition switch signals and the like; the simulation of power supply signal mainly adopts external program-controlled power supply, the monitoring and control of power supply signal are implemented by VT7001A hardware board card, and the network fault injection function of test system is implemented by VT2820 of VTS (including short-circuit fault, open-circuit fault and diagnosis functional fault)

Further, the electrical connection includes: a power line connection, a ground line connection, a CAN high line CAN _ H connection, a CAN low line CAN _ L connection and a specific wake-up hard line connection.

Further, the Labcar yellow board car houses n test devices: DUTs 1 to DUTn; all the test equipment is arranged in the Labcar yellow board vehicle according to the actual vehicle position; and the testing devices are electrically connected through low-voltage wiring harnesses.

In the specific implementation, the specific number of the test equipment DUTs is different according to different vehicle types, all the test equipment DUTs are installed on the Labcar yellow board trolley rack at the same position as the actual vehicle according to different positions of the actual vehicle, and the test equipment DUTs are connected through a low-voltage wire harness of the actual vehicle (including a power line, a ground line, a CAN high-line CAN _ H, CAN low-line CAN _ L and a specific awakening hard line); if the vehicle is provided with a plurality of CAN buses, each CAN bus needs to be respectively connected with an interface panel (comprising a power line, a ground line, a CAN high-line CAN _ H, CAN low-line CAN _ L and a specific awakening hard line), each CAN bus CAN be independently tested, and for projects with independent gateways, the test of the network management route CAN be simultaneously executed by the plurality of CAN buses.

Further, the wire breaker is automatically controlled by the VTS data acquisition board card; the wire breaker is used for controlling the open circuit and the short circuit of a power line, a ground line, a CAN high line CAN _ H, CAN low line CAN _ L and a specific wake-up hard line of the single test device and the whole Labcar yellow board vehicle; for example: control CAN high line CAN _ H of test device DUT1 to open, CAN low line CAN _ L of test device DUT tn to short circuit to ground, etc.

Further, the power supply module includes: the power supply distribution unit PDU and the programmable power supply;

the power distribution unit PDU is externally connected with a 220V alternating current power supply; the power distribution unit PDU is used for providing 220V alternating current for the oscilloscope, the programmable power supply and the PC computer;

the programmable power supply is used for converting 220V alternating current into 12V alternating current;

in the concrete implementation, the power module can realize automatic control to generate a low-voltage power supply during network automatic test, and the program-controlled power supply can realize automatic control by CANoe control software; the power line, CAN high line CAN _ H, CAN low line CAN _ L and specific awakening hard line of each test device are directly connected to an interface panel, the interface panel is connected to a VTS data acquisition board card, and the VTS data acquisition board card is controlled through CANoe control software so as to realize automatic control and monitoring of power signals, network fault injection function, IO (input/output) resource supply and the like required by the extensible tested node.

Referring to fig. 2, the programmable power supply is grounded in parallel with each of the test devices, the interface panel, the VTS data acquisition board, the oscilloscope, the CAN bus interferometer VH6501, and the CAN bus acquisition card VN 1640;

the program-controlled power supply is connected with each test device, the interface panel and the VTS data acquisition board card in series through a power line, a CAN high line CAN _ H and a CAN low line CAN _ L;

the VTS data acquisition board card is connected with the oscilloscope and the CAN bus interferometer VH6501 in parallel through a power line, a CAN high-line CAN _ H and a CAN low-line CAN _ L;

the CAN bus interferometer VH6501 and the CAN bus acquisition card VN1640 are connected in series through a power line, a CAN high-line CAN _ H and a CAN low-line CAN _ L.

A domain controller system level network automatic test method is realized based on the domain controller system level network automatic test system, and comprises the following steps:

s1: connecting all parts in the domain controller system level network automation test system according to preset configuration;

s2: awakening each test device in the Labcar yellow board vehicle to start communication;

s3: controlling each test device to execute a test case;

s4: detecting whether each test device finishes executing the test case; if yes, generating a complete network test report, and ending the process; otherwise, go to step S5;

s5: detecting whether equipment abnormality occurs in the process of executing the test case by each test equipment; if yes, generating a part of network test report, and ending the process; otherwise, the process returns to step S3.

In the specific implementation, the CANoe control software is used for automatically acquiring controller message signals, automatically calling test cases, automatically executing tests, outputting test results and test reports, and completing the network test work of the controller through an automatic test system, so that the research and development period can be shortened, and the work efficiency can be greatly improved;

furthermore, the utility model adopts CANoe control software of Vector company as PC computer upper computer software, and CAN adopt other CAN acquisition equipment;

furthermore, the model of the CAN bus interferometer adopted by the utility model is VH6501, and CANstress CAN also be adopted;

further, the utility model discloses PC computer host computer software can also add 1 login interface, motorcycle type and establish the interface and the test problem management system of selection interface, test case creation (for the problem management, can set up the flow and submit supplier department by the host computer factory, reply by the supplier).

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third and the like do not denote any order, but rather the words first, second and the like may be interpreted as indicating any order.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (6)

1. A domain controller system level network automated test system, comprising: the device comprises a power supply module, a PC (personal computer), an oscilloscope, an interface panel, a VTS (video tape service) data acquisition board card, a CAN bus interferometer VH6501, a CAN bus acquisition card VN1640, a wire breaker and a Labcar yellow board;

the power supply module is electrically connected with the PC, the oscilloscope and the VTS data acquisition board card; the VTS data acquisition board card is electrically connected with the interface panel and the CAN bus interferometer VH 6501; the oscilloscope is electrically connected with the CAN bus interferometer VH6501 and the CAN bus acquisition card VN 1640; the CAN bus acquisition card VN1640 is electrically connected with the PC computer; the interface panel is electrically connected with the wire breaker; the wire breaker is electrically connected with the Labcar yellow board vehicle.

2. The domain controller system level network automation test system of claim 1, wherein the electrical connections comprise: power line connection, ground wire connection, CAN high line CAN _ H connection, CAN low line CAN _ L connection and awakening hard line connection.

3. The domain controller system level network automated test system of claim 2, wherein the Labcar yellow board vehicle houses n test devices: DUTs 1 to DUTn; all the test equipment is arranged in the Labcar yellow board vehicle according to the actual vehicle position; and the testing devices are electrically connected through low-voltage wiring harnesses.

4. A domain controller system level network automated test system according to claim 3, wherein said wire breaker is automatically controlled by said VTS data collection board; the wire breaker is used for controlling the open circuit and the short circuit of a power line, a ground line, a CAN high line CAN _ H, CAN low line CAN _ L and a wake-up hard line of the single testing device and the whole Labcar yellow board vehicle.

5. The domain controller system level network automated test system of claim 3, wherein the power module comprises: the power supply distribution unit PDU and the programmable power supply;

the power distribution unit PDU is externally connected with a 220V alternating current power supply; the power distribution unit PDU is used for providing 220V alternating current for the oscilloscope, the programmable power supply and the PC computer;

the programmable power supply is used for converting 220V alternating current into 12V alternating current.

6. A domain controller system level network automated test system according to claim 5, wherein the programmable power supply is grounded in parallel with each of the test devices, the interface panel, the VTS data acquisition board, the oscilloscope, the CAN bus interferometer VH6501 and the CAN bus acquisition card VN 1640;

the program-controlled power supply is connected with each test device, the interface panel and the VTS data acquisition board card in series through a power line, a CAN high line CAN _ H and a CAN low line CAN _ L;

the VTS data acquisition board card is connected with the oscilloscope and the CAN bus interferometer VH6501 in parallel through a power line, a CAN high-line CAN _ H and a CAN low-line CAN _ L;

the CAN bus interferometer VH6501 and the CAN bus acquisition card VN1640 are connected in series through a power line, a CAN high-line CAN _ H and a CAN low-line CAN _ L.

Images