CN215219509U - Entertainment system test bench based on domain controller electrical architecture - Google Patents
Entertainment system test bench based on domain controller electrical architecture Download PDFInfo
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Abstract
The utility model discloses an entertainment system test bench based on electric framework of domain controller for the entertainment system to the vehicle tests, include: the system comprises bus test equipment, an external computer, a bus diagnosis interface, bus diagnosis reading equipment, a CAN bus, an Ethernet bus and power supply equipment; the bus test equipment comprises a USB interface, a CAN bus communication interface and an Ethernet bus communication interface, wherein the USB interface is in signal connection with an external computer through a universal serial bus; the bus test equipment receives an entertainment system application layer protocol simulation message sent by an external computer through a USB interface; the bus diagnosis interface is in signal connection with the bus diagnosis reading equipment, and the power supply equipment is electrically connected with the system domain controller to be tested and supplies power to the system domain controller to be tested. The entertainment system test bench based on the domain controller electrical architecture can be used for testing an entertainment system of a vehicle.
Description
Technical Field
The utility model relates to a vehicle production testing arrangement, more specifically relates to an entertainment system test bench based on domain controller electrical framework.
Background
With the increasing functions of automobiles and the increasing demands on communication of each controller of the automobiles, the functions of automobile models proposed in recent years are increasing, and the traditional electrical architecture based on the CAN communication protocol cannot meet the current practical needs. The Ethernet protocol is a communication protocol capable of transmitting messages at a high speed, can meet the data load of the current entertainment system to the maximum extent, becomes the first choice of the vehicle-mounted communication protocol of the entertainment system, and is increasingly applied to the whole vehicle electrical architecture and the entertainment system.
At present, the vehicle-mounted Ethernet communication protocols mainly comprise two types: 100BASE-T1 and 1000BASE-T1 for hundreds of megabits and gigabytes of data transfer, respectively. In the scheme of the electrical architecture based on the Ethernet communication protocol and the domain controller, the domain controller is a controller which integrates the key functions of the electrical architecture based on the Ethernet communication protocol, and comprises: the system comprises an entertainment system domain controller (DC information) and a whole vehicle system domain controller (DC Gateway), wherein in an electrical architecture of an Ethernet communication protocol, key functions of the whole vehicle system domain controller comprise an anti-theft system function, a Gateway function, a power-on logic control function and a user account information management function; the key functions of the entertainment system domain controller comprise a media playing function, an online service management function, a vehicle motion state control function, a vehicle air conditioner control function, a vehicle mobile phone connection function and a vehicle driving auxiliary control function.
The protocol needs to be constantly tested and validated before the entertainment system host product is delivered to the user. At present, no equipment specially aiming at carrying out the stand-alone test of the entertainment system based on the Ethernet communication protocol and the domain controller electrical architecture exists, so that the test has to be carried out on a test vehicle or a whole vehicle test bench. The test vehicle needs to allocate and occupy vehicle resources, and the test vehicle can only carry out testing under one configuration; the whole vehicle test bench is often very complex, occupies a large amount of space, has different configurations of different vehicle controllers, and is easy to cause missending of controller messages which are not configured according to the maximum configuration scheme.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem among the prior art, the utility model provides an entertainment system tests rack based on domain controller electrical framework for the entertainment system to the vehicle tests.
A entertainment system test bench based on electric framework of domain controller for entertainment system to the vehicle tests, test bench includes: the system comprises bus test equipment, an external computer (PC), a bus diagnosis interface, bus diagnosis reading equipment, a CAN bus, an Ethernet bus and power supply equipment; wherein,
the bus test apparatus includes: the system comprises a USB interface (Universal Serial bus), a CAN bus communication interface and an Ethernet bus communication interface, wherein the USB interface is in signal connection with an external computer through the Universal Serial bus; the bus test equipment receives an entertainment system application layer protocol simulation message sent by an external computer through a USB interface;
the system domain controller to be tested is in signal connection with a CAN bus communication interface of the bus test equipment; the bus test equipment transmits the CAN bus message to a system domain controller to be tested through the CAN bus communication interface and the CAN bus;
the system domain controller to be tested is in signal connection with an Ethernet bus communication interface of the bus test equipment through an Ethernet bus; the bus test equipment transmits the Ethernet message to a system domain controller to be tested through an Ethernet bus communication interface and an Ethernet bus;
the CAN bus is also used for transmitting application layer protocol simulation messages and entertainment system configuration information;
the Ethernet bus is used for transmitting application layer protocol simulation messages;
the bus diagnosis reading equipment is in signal connection with an external computer and sends diagnosis message information and entertainment system configuration information to a system domain controller to be tested through a bus diagnosis interface;
the bus diagnosis interface is in signal connection with the bus diagnosis reading equipment, and receives the diagnosis message information and the entertainment system configuration information of the system domain controller to be tested from the bus diagnosis reading equipment; the bus diagnosis interface is also in signal connection with a system domain controller to be detected through an Ethernet diagnosis activation line, a CAN bus and an Ethernet bus;
the power supply equipment is connected with the power supply and the ground wire, and the power supply equipment is electrically connected with the system domain controller to be tested and supplies power to the system domain controller to be tested.
Preferably, the system domain controller to be tested is a whole vehicle system domain controller, and the test bench can select one of the system domain controllers to test.
More preferably, the system domain controller under test further includes: the entertainment system domain controller is connected with the whole vehicle system domain controller in parallel through an Ethernet bus and then is connected into an Ethernet bus communication interface of the bus test equipment, and the influence of a line on the precision of a detection result can be reduced by the parallel connection mode.
More preferably, the entertainment system domain controller is connected with the whole vehicle system domain controller in series through a CAN bus and then is connected with a CAN bus communication interface of the bus test equipment, and the line connection mode does not influence the detection precision and simplifies the line.
Preferably, the system domain controller to be tested is an entertainment system domain controller, and the bus diagnosis interface is idle, that is: the entertainment system domain controller is not in signal connection with the bus diagnostic interface in a manner that does not affect the diagnosis of the entertainment system domain controller.
Preferably, the CAN bus and/or the ethernet bus are twisted pair cables.
Preferably, the bus test equipment adopts a Vector 5640A.
Preferably, the bus diagnosis reading device adopts German VAS 6154A.
Preferably, the power supply device is a 12V dc power supply of the company Meanwell.
Preferably, the bus diagnosis interface is a standard OBD (On Board Diagnostics) interface.
The utility model discloses an entertainment system test bench based on electric framework of domain controller, simple structure, convenient operation can directly realize the test to vehicle entertainment system, and is swift high-efficient. The method can find the functional design problem of the entertainment system host in the development stage, thereby effectively shortening the development period of the entertainment system host and providing more time for product optimization.
The utility model discloses an entertainment system test bench based on electric framework of domain controller through configuration information and the volume of book number data that sets up the system domain controller that outside computer storage awaited measuring, makes the rack have test simulation function and diagnostic function.
The test simulation function CAN send CAN bus messages and Ethernet messages, and the diagnosis function CAN send entertainment system configuration information to the test device through the diagnosis signal reading equipment. For example, the test simulation software and the diagnosis software based on the CAN communication bus protocol and the ethernet protocol may be respectively run on the external computer to implement the test simulation function and the diagnosis function.
Drawings
FIG. 1 is a block diagram of an entertainment system test bench based on a domain controller electrical architecture for overall vehicle system domain controller testing;
FIG. 2 is a block diagram of an entertainment system domain controller test bench based on the domain controller electrical architecture;
FIG. 3 is a block diagram of an entertainment system domain controller and vehicle system domain controller test by the entertainment system test bench based on the domain controller electrical architecture;
fig. 4 is a flow chart of a method for using the entertainment system test bench based on the domain controller electrical architecture of the present invention.
Description of the main element symbols:
1 external computer 2 bus test equipment
21 USB interface 22 Ethernet bus communication interface
23 CAN bus communication interface
3 Ethernet bus 4 CAN bus
5 bus diagnostic interface 6 bus diagnostic reading device
7 power supply equipment 8 entertainment system domain controller
81 Ethernet bus communication interface 82 CAN bus communication interface
91 CAN bus communication interface of 9 whole vehicle system domain controller
92 ethernet bus communication interface 93 diagnostic communication interface
10 Ethernet diagnosis activation line
Detailed Description
The above and other objects, features and advantages of embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. In the drawings, several embodiments of the invention are shown by way of example and not by way of limitation.
Example 1:
FIG. 1 is a block diagram of an entertainment system testing bench based on domain controller electrical architecture for testing an entire car system domain controller.
An entertainment system test bench based on a domain controller electrical architecture, when used for testing a whole vehicle system domain controller of a vehicle, the test bench comprises: the system comprises an external computer 1, bus test equipment 2, a bus diagnosis interface 5, bus diagnosis reading equipment 6, a CAN bus 4, an Ethernet bus 3 and power supply equipment 7; wherein, bus test equipment 2 includes: the system comprises a USB interface 21, a CAN bus communication interface 23 and an Ethernet bus communication interface 22, wherein the USB interface 21 is in signal connection with an external computer 1 through a universal serial bus; the bus test equipment 2 receives an entertainment system application layer protocol simulation message sent by the external computer 1 through the USB interface 21;
the whole vehicle system domain controller 9 to be tested is connected to the CAN bus communication interface 23 of the bus test equipment 2 through the CAN bus 4; the bus test equipment 2 transmits the CAN bus message to the whole vehicle system domain controller 9 through the CAN bus communication interface 23 and the CAN bus 4.
The whole vehicle system domain controller 9 is connected with an Ethernet bus communication interface 22 of the bus test equipment 2 through the Ethernet bus 3; the bus test equipment 2 transmits the Ethernet message to the whole vehicle system domain controller 9 through the Ethernet bus communication interface 22 and the Ethernet bus 3;
the CAN bus 4 is also used for transmitting application layer protocol simulation messages and entertainment system configuration information;
the Ethernet bus 3 is used for transmitting application layer protocol simulation messages;
the bus diagnosis reading equipment 6 is in signal connection with the external computer 1 and sends diagnosis message information and entertainment system configuration information to the whole vehicle system domain controller 9 through the bus diagnosis interface 5;
the bus diagnosis interface 5 is in signal connection with the bus diagnosis reading equipment 6, and receives the diagnosis message information and the entertainment system configuration information of the system domain controller to be tested from the bus diagnosis reading equipment 6; the bus diagnosis interface 5 is in signal connection with a whole vehicle system domain controller 9 to be tested through an Ethernet diagnosis activation line 10, a CAN bus 4 and an Ethernet bus 3;
the power supply device 7 is connected with a power supply and a ground wire, and the power supply device 7 is electrically connected with the whole vehicle system domain controller 9 to be tested and supplies power to the whole vehicle system domain controller.
Example 2:
FIG. 2 is a block diagram of an entertainment system domain controller test performed by an entertainment system test bench based on the domain controller electrical architecture.
The components in the embodiment shown in fig. 2 and fig. 1 have the same reference numerals and connection modes, and are not described again.
The difference between the test bench of this embodiment and the embodiment of fig. 1 is that fig. 2 is a stand-alone test for an entertainment system domain controller, where the bus diagnostic interface is idle, i.e.: the entertainment system domain controller 8 is not in signal connection with the bus diagnostic interface 5 and does not receive diagnostic message information and entertainment system configuration information from the bus diagnostic interface 5 in a manner that does not affect the diagnostics of the entertainment system domain controller 8.
Example 3:
fig. 3 is a structural diagram of the entertainment system domain controller and the entire car system domain controller test by the entertainment system test bench based on the domain controller electrical architecture.
The components in the embodiment shown in fig. 3 and fig. 1 have the same reference numerals and connection modes, and are not described again.
The system domain controller to be tested comprises: the entertainment system domain controller 8 and the whole vehicle system domain controller 9 are connected in series through the CAN bus 4, and then are accessed to the CAN bus communication interface 23 of the bus test equipment 2; the bus test equipment 2 transmits the CAN bus message to the entertainment system domain controller 8 and the whole vehicle system domain controller 9 through the CAN bus communication interface 23 and the CAN bus 4.
The entertainment system domain controller 8 and the whole vehicle system domain controller 9 are respectively connected in parallel to an Ethernet bus communication interface 22 of the bus test equipment 2 through the Ethernet bus 3; the bus test equipment 2 transmits the Ethernet message to the entertainment system domain controller 8 and the whole vehicle system domain controller 9 through the Ethernet bus communication interface 22 and the Ethernet bus 3;
the bus diagnosis reading equipment 6 is in signal connection with the external computer 1 and sends diagnosis message information and entertainment system configuration information to the whole vehicle system domain controller 9 through the bus diagnosis interface 5;
the bus diagnosis interface 5 is in signal connection with a whole vehicle system domain controller 9 to be tested through an Ethernet diagnosis activation line 10, a CAN bus 4 and an Ethernet bus 3;
the whole vehicle system domain controller 9 receives the diagnosis message information and the entertainment system configuration information and forwards the message to the entertainment system domain controller 8, test scenes are enriched, and the entertainment system domain controller can be tested more comprehensively.
CAN bus and/or ethernet bus, which may be twisted pair. The CAN bus adopts a twisted pair, so that the transmission rate CAN be improved, and the error rate of transmission signals CAN be reduced.
In the above embodiment, the bus test device 2 employs a Vector 5640A; the bus diagnosis reading device 6 adopts German VAS 6154A; the power supply device 7 is a 12V dc power supply of the company Meanwell; the bus diagnostic interface 5 is a standard OBD (On Board Diagnostics) interface.
The utility model discloses a use method of entertainment system domain controller, entertainment system domain controller is described in the difference test of entertainment system test rack based on domain controller electrical framework below.
Firstly, according to the test requirement, after the whole vehicle system domain controller to be tested is accessed into the rack, the diagnosis interface 5 is connected with the external diagnosis signal reading equipment 6 in a butt joint mode, and the USB interface 21 is connected with the external computer 1 in a butt joint mode.
The bus test equipment 2 reads the CAN bus message and the Ethernet message, and if the CAN bus message and the Ethernet message CAN be normally received by the bus test simulation software of the external computer 1, the configuration information of the entertainment system host is written in through the bus diagnosis equipment 6 and the bus diagnosis interface 5;
if the CAN bus message and the Ethernet message cannot be normally received by the bus test simulation software of the external computer 1, the bench line is detected until the CAN bus message and the Ethernet message CAN be normally received.
And after the configuration information of the entertainment system host is written into the system domain controller to be tested through the diagnosis interface, carrying out a domain controller electrical architecture communication protocol experiment, and after the domain controller electrical architecture communication protocol experiment is completed, dismantling the whole vehicle system domain controller and related lines.
And then the entertainment system domain controller is accessed into the rack according to the mode to carry out the single-machine communication protocol experiment of the entertainment system domain controller. And after the test is finished, issuing a test report.
Claims (10)
1. An entertainment system test bench based on a domain controller electrical architecture for testing an entertainment system of a vehicle, the test bench comprising: the system comprises bus test equipment, an external computer, a bus diagnosis interface, bus diagnosis reading equipment, a CAN bus, an Ethernet bus and power supply equipment; wherein,
the bus test apparatus includes: the system comprises a USB interface, a CAN bus communication interface and an Ethernet bus communication interface, wherein the USB interface is in signal connection with an external computer through a universal serial bus; the bus test equipment receives an entertainment system application layer protocol simulation message sent by an external computer through a USB interface;
the system domain controller to be tested is in signal connection with a CAN bus communication interface of the bus test equipment; the bus test equipment transmits the CAN bus message to a system domain controller to be tested through the CAN bus communication interface and the CAN bus;
the system domain controller to be tested is in signal connection with an Ethernet bus communication interface of the bus test equipment through an Ethernet bus; the bus test equipment transmits the Ethernet message to a system domain controller to be tested through an Ethernet bus communication interface and an Ethernet bus;
the CAN bus is also used for transmitting application layer protocol simulation messages and entertainment system configuration information;
the Ethernet bus is used for transmitting application layer protocol simulation messages;
the bus diagnosis reading equipment is in signal connection with an external computer and sends diagnosis message information and entertainment system configuration information to a system domain controller to be tested through a bus diagnosis interface;
the bus diagnosis interface is in signal connection with the bus diagnosis reading equipment, and receives the diagnosis message information and the entertainment system configuration information of the system domain controller to be tested from the bus diagnosis reading equipment; the bus diagnosis interface is also in signal connection with a system domain controller to be detected through an Ethernet diagnosis activation line, a CAN bus and an Ethernet bus;
the power supply equipment is connected with the power supply and the ground wire, and the power supply equipment is electrically connected with the system domain controller to be tested and supplies power to the system domain controller to be tested.
2. The entertainment system test bench of claim 1 wherein said system domain controller under test is an entire vehicle system domain controller.
3. The entertainment system test bench of claim 2 based on a domain controller electrical architecture, wherein said system domain controller under test further comprises: the entertainment system domain controller is connected with the whole vehicle system domain controller in parallel through an Ethernet bus and then is accessed into an Ethernet bus communication interface of the bus test equipment.
4. The entertainment system test rack of claim 3 based on domain controller electrical architecture, wherein the entertainment system domain controller is connected in series with the entire car domain controller through a CAN bus and then connected to a CAN bus communication interface of the bus test equipment.
5. The domain controller electrical architecture-based entertainment system test rack of claim 1, wherein the system domain controller under test is an entertainment system domain controller that is not signally connected to the bus diagnostic interface.
6. The domain controller electrical architecture-based entertainment system test rack of any one of claims 1 to 5, wherein the CAN bus and/or the Ethernet bus is a twisted pair.
7. The domain controller electrical architecture-based entertainment system test rack of claim 6, wherein the bus test device employs Vector 5640A.
8. The domain controller electrical architecture based entertainment system test rack of claim 6, wherein said bus diagnostic reading device employs a german VAS 6154A.
9. The domain controller electrical architecture-based entertainment system test rack of claim 6, wherein the power supply device is a 12V dc power supply from Meanwell.
10. The domain controller electrical architecture-based entertainment system test rack of claim 6, wherein the bus diagnostic interface is a standard OBD interface.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115150187A (en) * | 2022-07-28 | 2022-10-04 | 中汽创智科技有限公司 | Vehicle-mounted bus message security detection method and device, vehicle-mounted terminal and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115150187A (en) * | 2022-07-28 | 2022-10-04 | 中汽创智科技有限公司 | Vehicle-mounted bus message security detection method and device, vehicle-mounted terminal and storage medium |
| CN115150187B (en) * | 2022-07-28 | 2024-04-26 | 中汽创智科技有限公司 | Vehicle-mounted bus message security detection method and device, vehicle-mounted terminal and storage medium |
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