CN202832789U - Phase signal conversion and outputting device of combustion motor - Google Patents
Phase signal conversion and outputting device of combustion motor Download PDFInfo
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- CN202832789U CN202832789U CN 201220507291 CN201220507291U CN202832789U CN 202832789 U CN202832789 U CN 202832789U CN 201220507291 CN201220507291 CN 201220507291 CN 201220507291 U CN201220507291 U CN 201220507291U CN 202832789 U CN202832789 U CN 202832789U
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- phase signal
- signal conversion
- combustion engine
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- Testing Of Engines (AREA)
Abstract
The utility model discloses a phase signal conversion and outputting device of a combustion motor. The phase signal conversion and outputting devise comprises a triode, a light emitting diode (LED), a resistor and a bayonet nut connector (BNC) wiring column. The phase signal conversion and outputting device can enable phase signals of an automobile combustion motor flywheel, a bent axle, a cam shaft, oil injection and the like to be led out correctly. The phase signal conversion and outputting device is connected with noise and vibration testing front ends of companies such as LMS, HEAD, BBM and the like, the noise and vibration testing front ends can correctly collect various phase signals operated by the combustion motor, so that combining with the time domain feature of synchronously collected vibration and noise signals of the combustion motor, the happening time of abnormal noise, vibration and breakdowns is analyzed and obtained, so that problems can be quickly solved in a targeted mode.
Description
Technical field
The present invention relates to the field of internal combustion engine of automobile, particularly the phase signal conversion output apparatus of internal-combustion engine use.
Background technique
The internal-combustion engine of automobile is the dynamic power machine that a kind of intermittence is finished the work and circulated, its work has periodically characteristics, so the body surface vibration and noise signals that collects is a kind of non-stationary periodic signal, and have the characteristics of local assault signal in the engine testing process.
When internal-combustion engine breaks down, usually can be accompanied by and produce unusual vibration or noise.To these abnormal vibrations noise signals, we can carry out cause analysis by the professional test front-end collection, but the time domain phase signal that needs motor to move in the analytic process corresponds to the moment point of unusual generation.When this just needed the acquisition abnormity vibration and noise signals, the phase signal of the motor operation that synchronous acquisition is relevant was pressed when unusual such as cylinder, and we need constantly signal of synchronous acquisition oil spout, camshaft phase signals; When the valve noise was unusual, we needed synchronous acquisition camshaft phase signals, crank phase signal.
And at present, the device that in professional test equipment, does not have to realize the conversion of internal-combustion engine phase signal and be drawn out to the test front end; Supplier and other internal-combustion engine research institutions do not have yet but are needing possibly from now on the device of this function; Can not realize especially on the market the device on sale of this function.
Summary of the invention
The problem to be solved in the present invention provides a cover internal-combustion engine phase signal conversion output apparatus, the phase signal of internal combustion engine operation can directly be accessed in the test front ends such as noise and vibration of specialty, thus solve the internal-combustion engine phase signal accurate identification and with the problem of noise and vibration and other run signal synchronous acquisitions.
In order to address the above problem, the technological scheme of a kind of internal-combustion engine phase signal of the present invention conversion output apparatus is as follows: comprise phase signal change-over circuit and output wiring terminal, the phase signal change-over circuit comprises the loop that triode, light emitting diode and resistance form, phase signal is connected with the base stage of triode by resistance R 4, the emitter of the triode resistance R 3 of connecting with inter-collector, transistor collector is connected with the negative pole of Light-Emitting Diode (LED) with R2 by resistance R 1, and the positive pole of Light-Emitting Diode (LED) links to each other with DC electrical source; Signal through the phase signal change-over circuit is connected with output wiring terminal from transistor collector output.
Output wiring terminal adopts connector (the being called for short BNC) wiring terminal of concentric cable.Triode, recommendation NPN type 9013 triodes, BNC wiring terminal have guaranteed the versatility of signal output.
For the practicability that strengthens this device and the parsimony of materials, therefore power acquisition 12V vehicular power-bottle has also added four 10k Ω resistance, suitable to guarantee by the current/voltage of triode.
A kind of internal-combustion engine phase signal of the present invention conversion output apparatus considers that the power positive cathode people connects anti-possibility, has carried out preventive measure, adds light emitting diode, and is visual and effective.
By verification experimental verification, this device can be fast, correctly the phase signal with internal combustion engine operation directly accesses the test front end, and no signal decay, delay, distortion, interference etc. affect the phenomenon that time domain data is analyzed.
Adopt a kind of internal-combustion engine phase signal of the present invention conversion output apparatus, the phase signal of internal combustion engine operation can be by the direct professional noise and vibration of the access test front end of this device, the accurate identification of solution internal-combustion engine phase signal and with the problem of noise and vibration and other run signal synchronous acquisitions.
The present invention compares with conventional art, and its major advantage has the following aspects:
1) internal combustion engine flywheel, bent axle, camshaft, oil spout equiphase signal correctly can be drawn;
2) can link to each other with the noise and vibration test front end of the companies such as LMS, HEAD, BBM, and make it the acquisition phase signal.
Description of drawings
Fig. 1 is the circuit diagram of the phase signal change-over circuit in a kind of internal-combustion engine phase signal of the present invention conversion output apparatus.
Among the figure: R1, R2, R3, R4 are 10k Ω resistance;
D is light emitting diode;
Q is NPN type triode, and B is its base stage, and C is its collector electrode, and E is its emitter.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Phase signal change-over circuit referring to a kind of internal-combustion engine phase signal of the visible the present invention of Fig. 1 conversion output apparatus, comprise the loop that triode, light emitting diode and resistance form, phase signal is connected with the base stage of triode by resistance R 4, the emitter of the triode resistance R 3 of connecting with inter-collector, transistor collector is connected with the negative pole of Light-Emitting Diode (LED) with R2 by resistance R 1, and the positive pole of Light-Emitting Diode (LED) links to each other with DC electrical source; Signal through the phase signal change-over circuit is connected with output wiring terminal from transistor collector output.
DC electrical source is used common vehicular power-bottle (12V DC electrical source) power supply, adds a light emitting diode D at positive terminal, can prevent the both positive and negative polarity wrong so that burn device, can find out intuitively whether power supply connects instead by light emitting diode simultaneously; By two 10k Ω resistance R 1, the R2 of connecting, guaranteed the suitable voltage in triode Q two ends; By a 10k Ω resistance R 3 in parallel with triode Q, it is suitable to have guaranteed by the electric current of triode; Test needed internal-combustion engine phase signal and access from transistor base through a 10k Ω resistance R 4, again from collector electrode output, the wiring terminal of output adopts the at present general BNC wiring terminal of test front end, has guaranteed the versatility that signal is exported.
Finish above step, internal-combustion engine phase signal conversion output apparatus is just made complete.
Claims (7)
1. an internal-combustion engine phase signal conversion output apparatus comprises phase signal change-over circuit and output wiring terminal, it is characterized in that; Described phase signal change-over circuit comprises the loop that triode, light emitting diode and resistance form, phase signal is connected with the base stage of triode by resistance R 4, the emitter of the triode resistance R 3 of connecting with inter-collector, transistor collector links to each other with DC electrical source by resistance; Signal through the phase signal change-over circuit is connected with output wiring terminal from transistor collector output.
2. internal-combustion engine phase signal conversion output apparatus according to claim 1, it is characterized in that: the described resistance string that is connected with transistor collector is associated with two, is respectively resistance R 1 and R2.
3. internal-combustion engine phase signal conversion output apparatus according to claim 2, it is characterized in that: described resistance R 1 is connected with the negative pole of Light-Emitting Diode (LED) with R2, and the positive pole of Light-Emitting Diode (LED) links to each other with DC electrical source.
4. according to claim 1,2 or 3 described internal-combustion engine phase signal conversion output apparatus, it is characterized in that: described output wiring terminal adopts general BNC wiring terminal.
5. according to claim 1,2 or 3 described internal-combustion engine phase signal conversion output apparatus, it is characterized in that: described triode adopts 9013 triodes of NPN type.
6. internal-combustion engine phase signal conversion output apparatus according to claim 3, it is characterized in that: the resistance value of described resistance R 1, R2, R3 and R4 is 10k Ω.
7. internal-combustion engine phase signal conversion output apparatus according to claim 3 is characterized in that: described DC electrical source employing 12V vehicular power-bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507291 CN202832789U (en) | 2012-09-29 | 2012-09-29 | Phase signal conversion and outputting device of combustion motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507291 CN202832789U (en) | 2012-09-29 | 2012-09-29 | Phase signal conversion and outputting device of combustion motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832789U true CN202832789U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220507291 Expired - Fee Related CN202832789U (en) | 2012-09-29 | 2012-09-29 | Phase signal conversion and outputting device of combustion motor |
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| CN (1) | CN202832789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314688A (en) * | 2014-08-13 | 2015-01-28 | 吉林大学 | Device and method for judging rotation phase position and real-time position of engine crankshaft |
-
2012
- 2012-09-29 CN CN 201220507291 patent/CN202832789U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314688A (en) * | 2014-08-13 | 2015-01-28 | 吉林大学 | Device and method for judging rotation phase position and real-time position of engine crankshaft |
| CN104314688B (en) * | 2014-08-13 | 2016-10-05 | 吉林大学 | A kind of device and method judging engine crankshaft rotation phase place and real time position |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20190929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |