CN203385814U - Automotive ABS wire harness detection bench - Google Patents
Automotive ABS wire harness detection bench Download PDFInfo
- Publication number
- CN203385814U CN203385814U CN201320367536.8U CN201320367536U CN203385814U CN 203385814 U CN203385814 U CN 203385814U CN 201320367536 U CN201320367536 U CN 201320367536U CN 203385814 U CN203385814 U CN 203385814U
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- CN
- China
- Prior art keywords
- wire harness
- detection bench
- plug
- shaping circuit
- detection
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- 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
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Abstract
Disclosed in the utility model is an automotive ABS wire harness detection bench. The detection bench comprises an alternating current signal source that is connected with a plug arranged at one end of a to-be-detected wire harness; a plug arranged at the other end of the to-be-detected wire harness is connected with a detection bench socket that is connected with an input terminal of a shaping circuit; and an output terminal of the shaping circuit is connected with an input port of the a single-chip microcomputer MPU. And a wheel speed sensor signal line belongs to the kind of wire harness. With the detection bench, because the detection mode is consistent with the actual using state, sensor plug processing work can be carried out conveniently and the labor product efficiency is improved. And moreover, the detection bench has the good practicability.
Description
Technical field
The utility model relates to a kind of device that detects the automobile ABS wire harness.
Background technology
Detecting the most frequently used device of automobile ABS wire harness is the continuity test instrument, the continuity test instrument to the short circuit of wire harness, open circuit, the fault such as wrong wire distribution all can be comprehensively, detected fast.But in fact the situation of some wrong wire distribution only belongs to error, does not make the mistake, needn't be judged as unacceptable product.
For example: the ABS wire harness is for the measurement of the wire (transmission be the occasion of AC signal) that connects reluctive transducer, if two wires of same group of sensor are without any impact mutually to jumping for function.But be the mistake that belongs to wrong wire distribution for the continuity test instrument, be judged as defective.The terminal lead of sensor connector is of common occurrence to jumping in process of production, and this has just produced for the error of using function without any impact, and testing process just occurs defective, causes the contradiction of producing with check.
Summary of the invention
In order to overcome known continuity test appearance, easily to judge the stopping pregnancy product by accident be underproof defect, the utility model provides a kind of automobile ABS wiring harness detection table, this automobile ABS wiring harness detection table is in the process of measuring wire harness, to can not impacting of some particular job states, use the error of function to neglect, make it detected product and improve qualification rate meeting under the prerequisite of index, reduce unnecessary waste in man-hour.
The utility model solves the technical scheme that its technical matters adopts: this automobile ABS wiring harness detection table comprises the AC signal source, the AC signal source is connected with the plug of wire harness one end to be measured, the plug of the wire harness other end to be measured is connected with the monitor station socket, the monitor station socket is connected with the input end of shaping circuit, and the output terminal of shaping circuit is connected with the input port of single-chip microcomputer MPU.
Advantage of the present utility model: the wheel speed sensors signal wire just belongs to the wire harness of this type, after adopting the utility model, because detection mode is consistent with real use state, greatly facilitate the work of processed sensor plug, improve labour productivity, embodied practicality preferably.
The accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present utility model.
Fig. 2 is the monitor station socket enlarged diagram in Fig. 1.
Fig. 3 is the single chip computer architecture enlarged diagram in Fig. 1.
Embodiment
In Fig. 1, by one, there is the harness diagram of 4 passive sensors to be described as follows.
Label declaration:
F1 ~ f4: AC signal source, the signal of simulation magnetoresistive transducer.Can directly use magnetoresistive transducer to produce signal.Belong to wire harness test board part.
S1 ~ S4: the sensor plug of wire harness one end to be measured belongs to harness portion to be measured.Plug is connected with the socket of wire harness test board f1 ~ f4.
CT1: the plug of the wire harness other end to be measured.
CZ1: the monitor station socket, socket is connected with wire harness plug CT1 to be measured.
OP1 ~ OP4: shaping circuit is the square-wave signal that frequency is identical by the AC1-4 signal shaping of alternation.Belong to wire harness test board part.
MPU: single-chip microcomputer, with the input port of capture function.Belong to wire harness test board part.
The alternating signal that AC1 ~ AC4:f1 ~ f4 produces.Its frequency AC1=f1, AC2=f2, AC3=f3, AC4=f4(is f1 ≠ f2 ≠ f3 ≠ f4 wherein).
F1 ~ F4: the square-wave signal of shaping circuit output.Its frequency: F1=f1, F2=f2, F3=f3, F4=f4.
The first via: AC signal source f1 is connected with the sensor plug S1 of wire harness one end to be measured, the plug CT1 of the wire harness other end to be measured is connected with monitor station socket CZ1, monitor station socket CZ1 is connected with the input end of shaping circuit OP1, and the output terminal of shaping circuit OP1 is connected with the input port IOC0 of single-chip microcomputer MPU.
Its excess-three line structure is same as above.
Principle explanation: take the first via as example.
On the wire harness test board, magnetoresistive transducer AC signal source f1 produces alternating signal AC1, and wiring harness sensor plug S1 to be measured is connected with alternating signal AC1, is sent to the terminal of the plug CT1 of the wire harness other end to be measured.The plug CTI of the wire harness other end to be measured connects monitor station socket CZ1, and alternating signal AC1 is sent to shaping circuit OP1, and shaping circuit OP1 is shaped to by alternating signal AC1 the square wave F1 that frequency is identical.Square wave F1 is transported to the input port IOC0 of single-chip microcomputer MPU.
Single-chip microcomputer MPU is by checking that whether collect square-wave signal judges whether wire harness exists and open circuit or the short circuit mistake, if harness lead good connection to be measured, input port IOC0 just can collect square-wave signal, if do not collect square wave, does not just show that harness lead has and opens circuit or short circuit mistake or wrong wire distribution.
Single-chip microcomputer MPU judges whether wrong wire distribution by the frequency (or time cycle) of calculating square wave.For example, when existing S1 and S2 when jumping mistake, known F1 still has square wave.Whether single-chip microcomputer MPU can meet by the respective frequencies of analyzing each port the distribution mistake that designing requirement checks out the type.For example: design frequency f1=100HZ, f2=200HZ, f3=300HZ, f4=400HZ.If the F1 frequency that input port IOC1 collects is 200HZ, the F2 frequency that input port IOC2 collects is 100HZ, illustrates that sensor plug S1 and S2 distribution are wrong.
The signal of 2 lead-in wires of alternating signal AC1 is alternating signals, is non-polar.The terminal of plug CT1 the 1st pin of the wire harness other end to be measured and the terminal of the 4th pin are connected with alternating signal AC1+ or alternating signal AC1-connection all can work.What show the 1st pin of plug CT1 of the wire harness other end to be measured and the 4th pin wire thinks there is no mistake to jumping native system mutually.
It is identical that principle is detected on remaining 3 tunnel.
Claims (1)
1. an automobile ABS wiring harness detection table, this automobile ABS wiring harness detection table comprises the AC signal source, it is characterized in that: the AC signal source is connected with the plug of wire harness one end to be measured, the plug of the wire harness other end to be measured is connected with the monitor station socket, the monitor station socket is connected with the input end of shaping circuit, and the output terminal of shaping circuit is connected with the input port of single-chip microcomputer MPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320367536.8U CN203385814U (en) | 2013-06-25 | 2013-06-25 | Automotive ABS wire harness detection bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320367536.8U CN203385814U (en) | 2013-06-25 | 2013-06-25 | Automotive ABS wire harness detection bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203385814U true CN203385814U (en) | 2014-01-08 |
Family
ID=49874290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320367536.8U Expired - Fee Related CN203385814U (en) | 2013-06-25 | 2013-06-25 | Automotive ABS wire harness detection bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203385814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154923A (en) * | 2016-07-29 | 2016-11-23 | 广东中才教学仪器有限公司 | A kind of line detecting system being applied to electrical equipment real training |
-
2013
- 2013-06-25 CN CN201320367536.8U patent/CN203385814U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154923A (en) * | 2016-07-29 | 2016-11-23 | 广东中才教学仪器有限公司 | A kind of line detecting system being applied to electrical equipment real training |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150921 Address after: 221116 No. 12, Changan Road, Copper Mt. District, Jiangsu, Xuzhou Patentee after: Xuzhou Guanxin Technology Development Co., Ltd. Address before: 221116 No. 12, Changan Road, Copper Mt. District, Jiangsu, Xuzhou Patentee before: Zhang Yuliang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20160625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |