CN206323391U - A kind of CAN communication tests wire harness - Google Patents
A kind of CAN communication tests wire harness Download PDFInfo
- Publication number
- CN206323391U CN206323391U CN201621359070.7U CN201621359070U CN206323391U CN 206323391 U CN206323391 U CN 206323391U CN 201621359070 U CN201621359070 U CN 201621359070U CN 206323391 U CN206323391 U CN 206323391U
- Authority
- CN
- China
- Prior art keywords
- handover module
- plug
- node handover
- hub
- communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Insulated Conductors (AREA)
Abstract
A kind of CAN communication tests wire harness, include multiple hubs and multiple node handover modules, each hub includes a P end and multiple S ends, wherein, the P ends connecting test end of one hub, S ends connecting node handover module or the P ends for connecting another hub, each node handover module include a P end and a S end, the S ends of P ends connecting hub, S ends connect the P ends or vacant of CAN communication electronic device to be measured.The utility model, which is carried, meets different number of nodes testing requirements, adds the versatility of wire harness, reduces testing cost, it is ensured that the reliability of test.
Description
Technical field
The utility model is related to system testing field, more particularly to a kind of connection variable node CAN communication test wire harness.
Background technology
Traditional system testing is typically all tested using special test wire harness, and every suit product custom-made is a set of
System testing wire harness, especially for a kind of producing line of product is only produced, it has very strong reliability, but for same
The situation of many set systems of p-wire test, it is necessary to often change p-wire, that is, cause the time to waste, is easily caused wire harness and mixes again
Disorderly, testing efficiency is reduced.
Utility model content
The utility model provides a kind of CAN communication test wire harness, meets different node test demands, adds wire harness
Versatility, reduces testing cost, it is ensured that the reliability of test.
In order to achieve the above object, the utility model provides a kind of CAN communication test wire harness, comprising：
Multiple hubs, each hub includes a P end and multiple S ends, wherein, the P ends connection of a hub is surveyed
Try end, S ends connecting node handover module or the P ends for connecting another hub；
Multiple node handover modules, the P ends of each node handover module include a P end and a S end, P ends connection collection
The S ends of line device, S ends connect the P ends or vacant of CAN communication electronic device to be measured.
Described node handover module includes three key switches and terminal resistance, and three key switches include a ends, b ends and c ends, a ends
It can switch between b ends and c ends, the P ends of a ends connecting node handover module, b ends connect one end of terminal resistance, the connection of c ends
The S ends of node handover module, the P ends and S ends of the other end connecting node handover module of terminal resistance.
The quantity of described CAN communication electronic device to be measured is n, and the quantity of node handover module is n+1, wherein, n section
The a ends of three key switches are switched to c ends, residue 1 in point handover module connection CAN communication electronic device, the n node handover module
The a ends of three key switches are switched to b ends in individual node handover module.
The quantity of described hub is more than or equal in 1, all hubs the S ends that can be used for connecting node handover module
Quantity be m, and m be more than or equal to n+1.
Described CAN communication test wire harness also includes multiple connectors, and connector terminates plug-in unit and P termination plug-in units comprising S,
S terminates plug-in unit close to test lead, and P terminates plug-in unit close to node side to be measured, and the P ends of hub terminate plug-in unit using P, hub
S ends terminate plug-in unit using S, and the P ends of node handover module terminate plug-in unit using P, and the S ends of node handover module are inserted using S terminations
Part.
Test lead terminates plug-in unit, the P termination plug-in units of S termination plug-in unit connecting hubs, collection by one S of twisted pair line connection
S termination termination plug-in units of the plug-in unit by twisted pair line connection node handover module of line device, the S termination plug-in units of node handover module lead to
Cross twisted pair line connection CAN communication electronic device to be measured.
The utility model can be extended to test node, enhance the versatility of wire harness, be carried out quickly by switching
Switching, reduces testing time and cost, simple, the easy to use, length of test wire harness making is variable, flexibility is high, versatility
By force, it is adaptable to the testing field such as energy storage, communication and electric automobile.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of CAN communication that the utility model is provided tests wire harness.
Fig. 2 is the structural representation of node handover module.
Embodiment
Preferred embodiment of the present utility model is illustrated below according to Fig. 1~Fig. 2.
As shown in figure 1, the utility model provides a kind of CAN communication test wire harness, comprising：
Multiple hubs 2, each hub 2 includes a P end and multiple S ends, P ends connecting test end, S ends connecting node
The P ends of handover module 4 or the P ends for connecting another hub 2；
Multiple node handover modules 4, each node handover module 4 includes a P end and a S end, P ends connecting hub
2 S ends, S ends connect the P ends or vacant of CAN communication electronic device (ECU) to be measured.
Described CAN communication test wire harness also includes multiple connectors, and connector terminates plug-in unit and P termination plug-in units comprising S,
S terminates plug-in unit close to test lead, and P terminates plug-in unit close to node side to be measured, and the P ends of hub 2 terminate plug-in unit, hub 2 using P
S ends plug-in unit is terminated using S, the P ends of node handover module 4 terminate plug-in unit using P, and the S ends of node handover module 4 use S ends
Connector, test lead connects a S by twisted-pair feeder 1 and terminates plug-in unit 3, and the P terminations of the S termination connecting hubs 2 of plug-in unit 3 are inserted
Part, the S termination plug-in units of hub 2 terminate plug-in unit, the S of node handover module 4 by the P of twisted pair line connection node handover module 4
Termination plug-in unit passes through twisted pair line connection CAN communication electronic device to be measured.
As shown in Fig. 2 described node handover module 4 is included：P terminations plug-in unit 4.1, terminal resistance 4.3, three key switches
4.2 and S terminates plug-in unit 4.4, and three key switches 4.2 have a ends, b ends and c ends；The S terminations of the P termination connecting hubs 2 of plug-in unit 4.1
Plug-in unit, S termination plug-in units 4.4 connect CAN communication electronic device to be measured, or as vacant node, a ends of three key switches 4.2 lead to
Twisted pair line connection P termination plug-in units 4.1 are crossed, b ends pass through twisted pair line connection S by the one end of twisted pair line connection terminal resistance 4.3, c ends
Plug-in unit 4.4 is terminated, the other end of terminal resistance 4.3 terminates plug-in unit 4.1 by twisted pair line connection P respectively and S terminates plug-in unit 4.4,
By switching three key switches 4.2, access subsequent node or access terminal resistance can be selected, if a of three key switches 4.2
End is switched to c ends, then accesses CAN communication electronic device to be measured, if a ends of three key switches 4.2 are switched to b ends, access is eventually
Hold resistance 4.3.
When there is n CAN communication electronic device to need test, it is desirable to provide n+1 node handover module 4, wherein n section
Point handover module 4 is used to connect CAN communication electronic device, and a ends of three key switches 4.2 are switched in this n node handover module 4
C ends, remaining 1 node handover module 4 is used for a ends of three key switches 4.2 in access terminal resistance, this 1 node handover module 4
B ends are switched to, if the quantity at the S ends of the hub 2 at connecting test end is less than n, needs to carry out point spread, this is connected
Certain several S end of the hub 2 of test lead connect the P ends of other hub 2, then the P ends of other hub 2 are connected into section
Point handover module 4, until n CAN communication electronic devices to be measured are all accessed.
As shown in figure 1, in one embodiment of the invention, when 3 ECU of connection are tested, three ECU pass through respectively
Node handover module M is connected to the three nodes switching mould connected on hub HubA S ends, HubA-1, HubA-2, HubA-3
Three key switches are switched on c ends, HubA-4 meet a node handover module M again respectively by block M, will be thirdly key switch is switched to b
End, access terminal resistance.When needing test if more nodes, by another hub HubB P ends access set
Line device HubA S ends, you can expanding node.
The utility model has advantages below：
1st, different systems can be just tested using a kind of wire harness, that is, reduces testing cost, the testing time is reduced again,
Improve testing efficiency.
2nd, wire harness switching is simple, it is possible to be extended, when wire harness aging or when damaging, can very quickly more
Change, it is ensured that the normal operation of whole test streamline.
Although content of the present utility model is discussed in detail by above preferred embodiment, but it should be appreciated that on
The description stated is not considered as to limitation of the present utility model.After those skilled in the art have read the above, for
A variety of modifications and substitutions of the present utility model all will be apparent.Therefore, protection domain of the present utility model should be by appended
Claim limit.
Claims (6)
1. a kind of CAN communication tests wire harness, it is characterised in that include：
Multiple hubs, each hub includes a P end and multiple S ends, wherein, the P ends connecting test end of a hub,
The P ends of S ends connecting node handover module or the P ends for connecting another hub；
Multiple node handover modules, each node handover module include a P end and a S end, the S ends of P ends connecting hub,
S ends connect the P ends or vacant of CAN communication electronic device to be measured.
2. CAN communication as claimed in claim 1 tests wire harness, it is characterised in that described node handover module includes three keys
Switch and terminal resistance, three key switches include a ends, b ends and c ends, and a ends can switch between b ends and c ends, a ends connecting node
The P ends of handover module, b ends connect one end of terminal resistance, the S ends of c ends connecting node handover module, the other end of terminal resistance
The P ends and S ends of connecting node handover module.
3. CAN communication as claimed in claim 2 tests wire harness, it is characterised in that described CAN communication electronic device to be measured
Quantity is n, and the quantity of node handover module is n+1, wherein, n node handover module connects CAN communication electronic device, the n
The a ends of three key switches are switched to c ends in node handover module, and a ends of three key switches are switched in remaining 1 node handover module
B ends.
4. CAN communication as claimed in claim 3 tests wire harness, it is characterised in that the quantity of described hub is more than or equal to
1, the quantity that the S ends of connecting node handover module are can be used in all hubs is m, and m is more than or equal to n+1.
5. CAN communication as claimed in claim 4 tests wire harness, it is characterised in that described CAN communication test wire harness is also included
Multiple connectors, connector includes S and terminates plug-in unit and P termination plug-in units, and S terminates plug-in unit close to test lead, and P termination plug-in units are close to be treated
Node side is surveyed, the P ends of hub terminate plug-in unit using P, and the S ends of hub terminate plug-in unit, the P ends of node handover module using S
Plug-in unit is terminated using P, the S ends of node handover module terminate plug-in unit using S.
6. CAN communication as claimed in claim 5 tests wire harness, it is characterised in that test lead passes through one S end of twisted pair line connection
Connector, the P termination plug-in units of S termination plug-in unit connecting hubs, the S termination plug-in units of hub are cut by twisted pair line connection node
The termination plug-in unit of block is changed the mold, the S termination plug-in units of node handover module pass through twisted pair line connection CAN communication electronic device to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621359070.7U CN206323391U (en) | 2016-12-12 | 2016-12-12 | A kind of CAN communication tests wire harness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621359070.7U CN206323391U (en) | 2016-12-12 | 2016-12-12 | A kind of CAN communication tests wire harness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206323391U true CN206323391U (en) | 2017-07-11 |
Family
ID=59267066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621359070.7U Expired - Fee Related CN206323391U (en) | 2016-12-12 | 2016-12-12 | A kind of CAN communication tests wire harness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206323391U (en) |
-
2016
- 2016-12-12 CN CN201621359070.7U patent/CN206323391U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201699689U (en) | Radio-frequency circuit, radio-frequency test interface device and radio-frequency test system | |
| CN106647393A (en) | CAN bus automatic coding circuit and method | |
| CN205039383U (en) | Multifunctional data line | |
| CN206323391U (en) | A kind of CAN communication tests wire harness | |
| CN201994512U (en) | Multifunctional universal serial bus (USB) data line | |
| CN104297606A (en) | Adapter cable testing system capable of recognizing addresses of tested devices | |
| CN101937039B (en) | Connecting detection method | |
| CN101995516A (en) | Method for testing integrity of wiring harness | |
| CN206270694U (en) | A kind of CAN autocoding circuit | |
| CN105068967B (en) | Control method, device and the terminal of I2C equipment | |
| CN204576183U (en) | Multi-purpose CAN bus terminal resistor access device | |
| CN204044227U (en) | vehicle-mounted fuse current measuring device | |
| CN204481291U (en) | A kind of lightning protection two-wire RJ45 in parallel network information module | |
| CN104615209B (en) | Hard disk expansion apparatus | |
| CN206781670U (en) | A kind of vehicle switch assembly with anti-electric current counterattack effect | |
| CN207965003U (en) | A kind of long cable equivalent parameters cabinet | |
| CN102290681A (en) | Network electric connector | |
| CN206378159U (en) | A kind of humiture collection device and humiture acquisition system | |
| CN204086312U (en) | A kind of car load testing current electric current voltage conversion device | |
| CN203070280U (en) | Serial port wiring conversion equipment | |
| CN219627741U (en) | Circuit system of network hand-in-hand technology and electronic equipment | |
| CN204256084U (en) | A kind of PROFIBUS bus simple detection instrument | |
| CN216529617U (en) | Wire dividing and distributing device | |
| CN209267152U (en) | A kind of short-circuit protection circuit | |
| CN204178192U (en) | RS485 anti-collision bus marco protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20191212 |