CN214585732U

CN214585732U - Wire breaker for domain controller system-level network automation test

Info

Publication number: CN214585732U
Application number: CN202023205105.0U
Authority: CN
Inventors: 安元元; 郝义国; 陈华明; 余红霞
Original assignee: Wuhan Grove Hydrogen Energy Automobile Co Ltd
Current assignee: Wuhan Grove Hydrogen Automobile Co Ltd; Wuhan Grove Hydrogen Energy Automobile Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-02
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to a car bus network field provides a disconnected line ware is used in automatic test of domain controller system level network, a serial communication port, include: the first connector, the second connector, the third connector, the first relay, the second relay, the third relay and the fourth relay; the first relay is electrically connected with the first connector, the second connector and the third connector; the second relay is electrically connected with the first connector, the second connector and the third connector; the third relay is electrically connected with the first connector, the second connector and the third connector; the fourth relay is electrically connected with the first connector, the second connector and the third connector. The utility model provides a broken line ware control is accurate to have a plurality of interfaces, can be applied to in various automotive electronics test items.

Description

Wire breaker for domain controller system-level network automation test

Technical Field

The utility model relates to a car bus network field especially relates to a broken wire ware is used in automatic test 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 capacity and the increasing challenge of relevant test verification, the wire breaker used in the test process of the prior art has the technical problems of insufficient control accuracy and insufficient available interfaces.

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, the broken line ware that uses in the test process of solving prior art, there is not accurate enough and the not enough technical problem of available interface of control, the utility model provides a broken line ware is used in automatic test of domain controller system level network, include: the first connector, the second connector, the third connector, the first relay, the second relay, the third relay and the fourth relay;

the first relay is electrically connected with the first connector, the second connector and the third connector;

the second relay is electrically connected with the first connector, the second connector and the third connector;

the third relay is electrically connected with the first connector, the second connector and the third connector;

the fourth relay is electrically connected with the first connector, the second connector and the third connector.

Preferably, the wire breaker is electrically connected with the VTS data acquisition board card, the system test bench and the electronic control unit ECU; the system test bench is electrically connected with the VTS data acquisition board card.

Preferably, the electrical connection comprises: power line connection, ground wire connection, CAN high line CAN _ H connection and CAN low line CAN _ L connection.

Preferably, the pin 30 of the first relay is electrically connected with the first connector; the 87 pin of the first relay is electrically connected with the second connector; the 85 pin of the first relay is electrically connected with the third connector;

the pin 30 of the second relay is electrically connected with the first connector; the 87 pin of the second relay is electrically connected with the second connector; the 85 pin of the second relay is electrically connected with the third connector;

the pin 30 of the third relay is electrically connected with the first connector; the 87 pin of the third relay is electrically connected with the second connector; the 85 pin of the third relay is electrically connected with the third connector;

the pin 30 of the fourth relay is electrically connected with the first connector; the 87 pin of the fourth relay is electrically connected with the second connector; the 85 pin of the fourth relay is electrically connected with the third connector;

and the pin 86 of the first relay is electrically connected with the pin 86 of the second relay, the pin 86 of the third relay, the pin 86 of the fourth relay and the negative pin com of the third connector.

Preferably, the VTS data acquisition board is used to control the wire breaker and is connected to the third connector through a signal line; and the VTS data acquisition board card provides a power supply for the system test bench.

The utility model discloses following beneficial effect has:

the utility model provides a broken line ware control is accurate to have a plurality of interfaces, can be applied to in various automotive electronics test items.

Drawings

FIG. 1 is a schematic structural view 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, the utility model provides a ware is broken in automatic test of domain controller system level network realizes the CAN bus fault-tolerance test in the automatic test of network, does not need manual the relevant pencil disconnection of carrying on CAN bus communication again and resumes;

the method specifically comprises the following steps: the first connector, the second connector, the third connector, the first relay, the second relay, the third relay and the fourth relay;

Furthermore, the wire breaker is electrically connected with the VTS data acquisition board card, the system test bench and the electronic control unit ECU; the system test bench is electrically connected with the VTS data acquisition board card.

In specific implementation, the VTS data acquisition board card adopted by the utility model is a modularized hardware system, and is a part of the execution hardware of the whole system; 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 module design of the VTS data acquisition board card can be flexibly configured and can be used in a plug-and-play mode; in the test process, the power supply input signals of the tested controller mainly comprise storage battery power supply signals, ignition switch signals and the like;

4 relays in the wire breaker share 1 signal ground wire, and the actuation or the disconnection of the first relay is controlled through a relay 1+ pin in the third connector; the actuation or the disconnection of the second relay is controlled by a relay 2+ pin in the third connector; the suction or the disconnection of the third relay is controlled by a relay 3+ pin in the third connector; the actuation or the disconnection of the fourth relay is controlled by a relay 4+ pin in the third connector;

the power supply of the system test bench is from a VTS data acquisition board card, the simulation of power supply signals is from an external program-controlled power supply, and the monitoring and control of the power supply signals are realized by a VT7001A hardware board card;

a plurality of wire breakers (wire breakers 1 to wire breakers n, wherein n is a positive integer greater than 1) can be connected to the VTS data acquisition board card, and all the wire breakers are electrically connected with the system test bench; the system test rack internally comprises: a plurality of test devices (test devices DUT1 to DUTn).

Further, the electrical connection includes: power line connection, ground wire connection, CAN high line CAN _ H connection and CAN low line CAN _ L connection.

In the specific implementation, the VTS data acquisition board controls the wire breaker and the system test bench by controlling the on-off of the power line, the ground line, the CAN high-line CAN _ H and the CAN low-line CAN _ L, so that the fault tolerance test in the network automation test of each test equipment DUT is realized, the test equipment DUT is ensured to meet the design requirements of research and development departments when relevant bus faults occur, and the DUT CAN recover normal bus communication (mainly aiming at the CAN bus) after the faults are recovered.

Furthermore, the pin 30 of the first relay is electrically connected with the first connector; the 87 pin of the first relay is electrically connected with the second connector; the 85 pin of the first relay is electrically connected with the third connector;

Furthermore, the VTS data acquisition board card is used for controlling the wire breaker and is connected with the third connector through a signal wire; and the VTS data acquisition board card provides a power supply for the system test bench.

A control method of a wire breaker for a domain controller system level network automation test is realized based on the wire breaker for the domain controller system level network automation test, and comprises the following steps:

electrically connecting the wire breaker with a system test bench;

detecting whether the VTS data acquisition board can disconnect the first relay, the second relay, the third relay and the fourth relay through the third connector;

if yes, the second connector outputs a signal, and the output signal is partially disconnected;

and if not, the second connector outputs signals, and the output signals are all closed.

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

1. The utility model provides a disconnected line ware of domain controller system level network automation test which characterized in that includes: the first connector, the second connector, the third connector, the first relay, the second relay, the third relay and the fourth relay;

2. The domain controller system level network automation test wire breaker of claim 1, wherein the wire breaker is electrically connected with a VTS data acquisition board, a system test bench and an Electronic Control Unit (ECU); the system test bench is electrically connected with the VTS data acquisition board card.

3. The domain controller system level network automation test wire breaker of claim 2, wherein the electrical connection comprises: power line connection, ground wire connection, CAN high line CAN _ H connection and CAN low line CAN _ L connection.

4. The domain controller system level network automation test wire breaker according to claim 1, wherein 30 pins of the first relay are electrically connected to the first connector; the 87 pin of the first relay is electrically connected with the second connector; the 85 pin of the first relay is electrically connected with the third connector;

5. The domain controller system level network automation test wire breaker according to claim 2, wherein the VTS data acquisition board is configured to control the wire breaker and is connected to the third connector through a signal line; and the VTS data acquisition board card provides a power supply for the system test bench.