CN206922146U - A kind of OBD connecting lines - Google Patents
A kind of OBD connecting lines Download PDFInfo
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- CN206922146U CN206922146U CN201720405841.XU CN201720405841U CN206922146U CN 206922146 U CN206922146 U CN 206922146U CN 201720405841 U CN201720405841 U CN 201720405841U CN 206922146 U CN206922146 U CN 206922146U
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- stitch
- obd
- data transmission
- transmission plug
- line
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Abstract
The utility model discloses a kind of OBD connecting lines, including main line, the first branch line, the second branch line and one end to be connected with the main line, the one-to-two line node that the other end is connected with first branch line and second branch line；The main line end is provided with OBD plugs；The first branch line end is provided with the first data transmission plug for connecting rotating speed transmitting device；No. 1 stitch of the first data transmission plug and No. 2 stitch connection；No. 10 stitch of the OBD plugs is connected with the o.11 stitch of the first data transmission plug；A filter element in parallel between No. 4 stitch of the first data transmission plug and No. 12 stitch.The utility model passes through the connected mode between improving the OBD cable plugs, stabilize the operating voltage and baud rate of the first data transmission plug for connecting rotating speed transmitting device, ensure that cruise control can effectively control engine speed, so as to complete tail gas on-line checking.
Description
Technical field
It the utility model is related to automobile specified connecting line field, more particularly to a kind of OBD connecting lines.
Background technology
In VQ3 tail gas on-line checkings, ENG rotating speeds are directly to be communicated by transmitting device ECU-Linker by product vehicle OBD
Mouthful read, then radio to data analysis system PC, at the same time, Tail gas measuring cruise control LET need also exist for by with
Same product vehicle OBD communication ports connection carries out data transmission.But the special dress of existing corresponding car OBD interface extension
It is common one-to-two line to put, and utility model is found in use：Existing ECU-Linker baud rate and product vehicle
ECU baud rate differs, and ECU-Linker operating voltage is unstable, causes cruise control LET, ENG rotating speed to transmit
Device ECU-Linker shared interfaces OBD exists incompatible and conflicted when communicating with product vehicle ECU and read data, makes LET constant speed
Device can not control engine speed, cause that tail gas on-line checking can not be completed.
Utility model content
Skill problem to be solved in the utility model is, purpose be to provide a kind of OBD connecting lines, it can be ensured that constant speed
Device can effectively control engine speed, and then complete tail gas on-line checking.
In order to solve the above-mentioned technical problem, the utility model provides a kind of OBD connecting lines, including main line, one-to-two line
Node, the first branch line and the second branch line；One end of the one-to-two line node connects the main line, the one-to-two line section
The other end of point connects first branch line and second branch line；The main line end is provided with OBD plugs；Described
One branch line end is provided with the first data transmission plug for connecting rotating speed transmitting device；The second branch line end is set
It is equipped with the second data transfer plug for connecting cruise control；The OBD plugs include No. 16 stitch；First data pass
Defeated plug includes No. 15 stitch；A filter in parallel between No. 4 stitch of the first data transmission plug and No. 12 stitch
Ripple element；
No. 2 stitch of the OBD plugs is connected with No. 3 stitch of the first data transmission plug；The OBD
No. 4 stitch and No. 5 stitch of plug connect No. 1 pin of the first shorting stub to be formed and the first data transmission plug
Pin and No. 2 stitch connect the second shorting stub to be formed and are connected；No. 6 stitch of the OBD plugs and first data
No. 4 stitch of transmission plug is connected；No. 7 stitch of the OBD plugs and the 15th of the first data transmission plug the
Number stitch is connected；No. 10 stitch of the OBD plugs is connected with the o.11 stitch of the first data transmission plug；
No. 14 stitch of the OBD plugs is connected with No. 12 stitch of the first data transmission plug；The OBD plugs
No. 15 stitch is connected with No. 8 stitch of the first data transmission plug；No. 16 stitch of the OBD plugs and institute
No. 10 stitch for stating first data transmission plug is connected.
Preferably, the filter element is filter resistance.
Preferably, the numerical value of the filter resistance is 62 ohm.
Preferably, the second branch line end is provided with the second data transfer plug for connecting cruise control.
Preferably, the second data transfer plug for being used to connect constant speed transmitting device includes No. 11 stitch.
Preferably, No. 1 stitch of the first data transmission plug and No. 2 pin-strapping are rotating speed transmission dress
The power supply negative pole put；No. 10 stitch of the first data transmission plug is the power supply positive pole of the rotating speed transmitting device.
Preferably, the offer magnitude of voltage of the power supply positive pole and negative pole of powering is 12 volts.
Preferably, the main line, first branch line and second branch line include more signal wires and are used for
Wrap up the signal wire integument of the more signal wires；The signal wire integument is double-decker, includes the insulating barrier of outer layer
With the screen layer of internal layer.
Preferably, the screen layer is aluminium foil or the wire netting being mutually wound by more metal fines.
The utility model has the advantages that：
1. in the utility model, No. 4 stitch and No. 5 stitch of OBD plugs connect the first shorting stub to be formed and the
No. 1 stitch and No. 2 stitch of one data transfer plug connect the second shorting stub to be formed be connected be connected in rotating speed transmitting device
Power supply negative pole, No. 16 stitch of OBD plugs be connected with No. 10 stitch of the first data transmission plug be connected in it is described
The power supply positive pole of rotating speed transmitting device, the power supply positive pole and negative pole of powering provide stable work electricity for rotating speed transmitting device
Pressure.
2. in the utility model, by parallel between No. 4 stitch of first data transmission plug and No. 12 stitch
One filter element, stabilize the communication baud rate of rotating speed transmitting device and identical with product vehicle communication baud rate, it is ensured that constant speed
Device can effectively control engine speed, complete tail gas on-line checking.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, below by embodiment it is required use it is attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present utility model, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of OBD connecting wire structures schematic diagram that the utility model embodiment provides；
Fig. 2 is the front view of Fig. 1 OBD plugs；
Fig. 3 is the front view of the first data transmission plug of figure；
Fig. 4 is the circuit connection diagram of OBD plugs and first data transmission plug that the utility model embodiment provides.
It is entitled corresponding to diagram mark：11st, OBD plugs；12nd, one-to-two line node；13rd, first data transmission plug；
14th, the second data transfer plug；15th, main line；16th, the first branch line；17th, the second branch line.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment 1：
As shown in Figure 1, Figure 2 and Figure 3, a kind of OBD provided by the utility model (On-Board Diagnostic, it is vehicle-mounted to examine
Disconnected system) connecting line, including main line 15, one-to-two line node 12, the first branch line 16 and the second branch line 17；The one-to-two
One end of line node 12 connects the main line 15, and the other end of the one-to-two line node 12 connects the He of the first branch line 16
Second branch line 17；The end of main line 15 is provided with OBD plugs 11；The end of first branch line 16 is provided with use
In the first data transmission plug 13 of connection rotating speed transmitting device；The end of second branch line 17 is provided with fixed for connecting
Second data transfer plug 14 of speed variator；The OBD plugs 11 include No. 16 stitch；The first data transmission plug 13 wraps
Include No. 15 stitch.
As shown in figure 4, No. 3 stitch of No. 2 stitch of the OBD plugs 11 and the first data transmission plug 13
It is connected；No. 4 stitch and No. 5 stitch of the OBD plugs 11 connect the first shorting stub to be formed and first data
No. 1 stitch and No. 2 stitch for transmitting plug 13 connect the second shorting stub to be formed and are connected；The 6th of the OBD plugs 11
Number stitch is connected with No. 4 stitch of the first data transmission plug 13；No. 7 stitch of the OBD plugs 11 and institute
No. 15 stitch for stating first data transmission plug 13 is connected；No. 10 stitch of the OBD plugs 11 and the described first number
O.11 stitch according to transmission plug 13 is connected；No. 14 stitch of the OBD plugs 11 is inserted with the first data transmission
First 13 No. 12 stitch is connected；No. 15 stitch of the OBD plugs 11 and the 8th of the first data transmission plug 13 the
Number stitch is connected；No. 16 stitch of the OBD plugs 11 and No. 10 stitch phase of the first data transmission plug 13
Connection；A filter element in parallel is (i.e. at this between No. 4 stitch of the first data transmission plug 13 and No. 12 stitch
An indirect filter element for two stitch), it is preferred that the filter element is filter resistance；The first data transmission is inserted
First 13 No. 1 stitch and the power supply negative pole that No. 2 pin-strapping is the rotating speed transmitting device；The first data transmission is inserted
First 13 No. 10 stitch is the power supply positive pole of the rotating speed transmitting device.It should be noted that the filter element can be with
By filtering chip (such as bandpass filtering chip or bandreject filtering chip etc.) or the filter being made up of the resistance of parallel connection with electric capacity
Wave circuit etc., is not specifically limited herein.
Specifically, the OBD plugs 11 are used for ECU (Electronic Control Unit, the automobile for connecting product vehicle
Dedicated microcomputer controller) data connector, realize constant speed tumbler and rotating speed transmitting device simultaneously with the ECU of product vehicle it
Between half-duplex asynchronous serial communication.It is in parallel between No. 4 stitch of the first data transmission plug 13 and No. 12 stitch
One filter resistance is used for the communication baud rate of stabilized (steady-state) speed transmitting device and identical with product vehicle communication baud rate；The power supply
Positive pole and power supply negative pole are the stable operating voltage that rotating speed transmitting device provides.Wherein it is preferred to the resistance of the filter resistance
For 62 ohm, the power supply positive pole and negative pole of powering are that the magnitude of voltage that rotating speed transmitting device provides is 12 volts, it is possible to understand that
It is in other embodiment of the present utility model, the resistance of the filter resistance can be selected according to actual conditions, this reality
It is not specifically limited with new.
Specifically, the ECU of product vehicle connects rotating speed transmission dress by the first data transmission plug 13 of the OBD connecting lines
Realization is put to communicate and then read the rotating speed of engine and be wirelessly transmitted to PC (PersonalComputer, personal computer)
Software systems are analyzed, and complete Tail gas measuring.The second data transfer plug that the ECU of product vehicle passes through the OBD connecting lines
14 connection cruise control, which are realized, to be communicated and controls the rotating speed of engine.
A kind of OBD connecting lines visible by embodiment 1, that the utility model embodiment provides, due to first data
A numerical value in parallel is used for stable turn for 62 ohm of filter resistance between transmitting No. 4 stitch and No. 12 stitch of plug 13
The communication baud rate of fast transmitting device is simultaneously identical with product vehicle communication baud rate, and the power supply positive pole and power supply negative pole are rotating speed
Transmitting device provides the stable operating voltage that magnitude of voltage is 12 volts, it is ensured that product vehicle ECU fills with rotating speed transmitting device and constant speed
Communication between putting is normal, can effectively control engine speed, and completes tail gas on-line checking.
Embodiment 2：
The present embodiment is the further restriction made on the basis of embodiment 1, the main line 11, first branch line
16 and second branch line 17 include more signal wires and the signal wire integument for wrapping up the more signal wires；Institute
It is double-decker to state signal wire integument, including the screen layer of the insulating barrier of outer layer and internal layer, the screen layer be aluminium foil or by
The wire netting that more metal fines are mutually wound.Specifically, the main line 11 wraps up 16 signal wires, first branch
Line 16 wraps up 15 signal wires, and second branch line 17 includes 11 signal wires.
In the present embodiment, the screen layer is used to shield the interference of outer signals, be advantageous to improve protect product vehicle ECU with
The reliability communicated between rotating speed transmitting device and cruise control.And aluminium foil and wire netting all have good flexibility, by aluminium foil
Or the wire netting being mutually wound by more metal fines is arranged to the screen layer while also causes the main line 11, described
First branch line 16 and second branch line 17 have good flexibility.
Above disclosed is only a kind of the utility model preferred embodiment, can not limit this practicality with this certainly
New interest field, one of ordinary skill in the art will appreciate that all or part of flow of above-described embodiment is realized, and according to
The equivalent variations that the utility model claims are made, still fall within the scope that utility model is covered.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Claims (9)
1. a kind of OBD connecting lines, it is characterised in that including main line, one-to-two line node, the first branch line and the second branch line；
One end of the one-to-two line node connects the main line, and the other end of the one-to-two line node connects first branch line
With second branch line；The main line end is provided with OBD plugs；The first branch line end is provided with to be turned for connecting
The first data transmission plug of fast transmitting device；The OBD plugs include No. 16 stitch；The first data transmission plug includes
No. 15 stitch；A filter element in parallel between No. 4 stitch of the first data transmission plug and No. 12 stitch；
No. 2 stitch of the OBD plugs is connected with No. 3 stitch of the first data transmission plug；The OBD plugs
No. 4 stitch and No. 5 stitch connect the first shorting stub to be formed and the first data transmission plug No. 1 stitch and
No. 2 stitch connects the second shorting stub to be formed and is connected；No. 6 stitch of the OBD plugs and the first data transmission
No. 4 stitch of plug is connected；No. 7 stitch of the OBD plugs and No. 15 pin of the first data transmission plug
Pin is connected；No. 10 stitch of the OBD plugs is connected with the o.11 stitch of the first data transmission plug；It is described
No. 14 stitch of OBD plugs is connected with No. 12 stitch of the first data transmission plug；The 15th of the OBD plugs
Number stitch is connected with No. 8 stitch of the first data transmission plug；No. 16 stitch of the OBD plugs and described the
No. 10 stitch of one data transfer plug is connected.
2. OBD connecting lines according to claim 1, it is characterised in that the filter element is filter resistance.
3. OBD connecting lines according to claim 2, it is characterised in that the numerical value of the filter resistance is 62 ohm.
4. OBD connecting lines according to claim 1, it is characterised in that the second branch line end is provided with for connecting
Connect the second data transfer plug of cruise control.
5. OBD connecting lines according to claim 4, it is characterised in that described to be used to connect the second of constant speed transmitting device
Data transfer plug includes No. 11 stitch.
6. OBD connecting lines according to claim 1, it is characterised in that No. 1 pin of the first data transmission plug
Pin and the power supply negative pole that No. 2 pin-strapping is the rotating speed transmitting device；No. 10 pin of the first data transmission plug
Pin is the power supply positive pole of the rotating speed transmitting device.
7. OBD connecting lines according to claim 6, it is characterised in that the offer electricity of the power supply positive pole and negative pole of powering
Pressure value is 12 volts.
8. OBD connecting lines according to claim 1, it is characterised in that the main line, first branch line and described
Two branch lines include more signal wires and the signal wire integument for wrapping up the more signal wires；The signal wire parcel
Layer is double-decker, including the screen layer of the insulating barrier of outer layer and internal layer.
9. OBD connecting lines according to claim 8, it is characterised in that the screen layer is aluminium foil or thin by more metals
The wire netting that line is mutually wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720405841.XU CN206922146U (en) | 2017-04-18 | 2017-04-18 | A kind of OBD connecting lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720405841.XU CN206922146U (en) | 2017-04-18 | 2017-04-18 | A kind of OBD connecting lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206922146U true CN206922146U (en) | 2018-01-23 |
Family
ID=61305659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720405841.XU Active CN206922146U (en) | 2017-04-18 | 2017-04-18 | A kind of OBD connecting lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206922146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109656172A (en) * | 2018-12-24 | 2019-04-19 | 深圳市道通科技股份有限公司 | A kind of method, apparatus obtaining baud rate |
-
2017
- 2017-04-18 CN CN201720405841.XU patent/CN206922146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109656172A (en) * | 2018-12-24 | 2019-04-19 | 深圳市道通科技股份有限公司 | A kind of method, apparatus obtaining baud rate |
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| GR01 | Patent grant |