CN206593867U - A kind of plus noise test device of automobile different solar terms door aperture - Google Patents
A kind of plus noise test device of automobile different solar terms door aperture Download PDFInfo
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- CN206593867U CN206593867U CN201720162735.3U CN201720162735U CN206593867U CN 206593867 U CN206593867 U CN 206593867U CN 201720162735 U CN201720162735 U CN 201720162735U CN 206593867 U CN206593867 U CN 206593867U
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- microphone
- data acquisition
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- acquisition unit
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Abstract
A kind of plus noise test device of automobile different solar terms door aperture, is related to a kind of test equipment of noise.Including throttle opening tester, data acquisition unit, the first microphone, the second microphone, photoelectric sensor, GPS tachymeters and computer, obtain noise sound level in driver's cabin by the data of collection, its have the advantages that it is simple in construction, reasonable in design, be easily installed and safeguard.
Description
Technical field
The utility model is related to a kind of test equipment of noise, and more particularly to a kind of adding for automobile different solar terms door aperture makes an uproar
Electroacoustic test device.
Background technology
It, in order to meet human and environment demand, is to seek to meet the product sound of automobile characteristic that rational automobile noise level, which is,
Level, is the important component of auto NVH research.The height of automobile noise level directly affects impression of the people to automobile.
Therefore, the vehicle of designed noise level is increasingly noted by automotive development engineer, has been well-known both at home and abroad at present
One important content of vehicle design.Driver can substantially experience the big of vehicle noise level during driving
Small, when the vehicle accelerates, air throttle is opened, and the meeting of giving it the gun of air throttle difference opening degree bring different drive to driver
Experience is sailed, but also brings along different driving noise experience environment.The noise circumstance of larger sound pressure level can bring bored to customer
Sensation, such as irritated, uncomfortable, the test device at present to the acceleration noise of automobile is also fewer.
The content of the invention
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of automobile different solar terms door aperture
Plus noise test device, its is simple in construction, reasonable in design, is easily installed and safeguards.
The technical scheme that the utility model is used is：A kind of plus noise test device of automobile different solar terms door aperture,
It is characterized in that, including throttle opening tester, data acquisition unit, the first microphone, the second microphone, photoelectric sensing
Device, GPS tachymeters and computer, wherein, the OBD detection mouths of automobile are connected with the input of throttle opening tester, solar term
The output end of door aperture tester and the input all the way of data acquisition unit are connected, the first microphone, the second microphone difference
It is arranged in the left and right ear of driver, another road of the first microphone, the output end of the second microphone and data acquisition unit is defeated
Enter end connection, be fixed on for gathering the photoelectric sensor of engine rotational speed signal on the outside of engine crankshaft belt pulley, photoelectric transfer
The output end of sensor connects the another road input of data acquisition unit, and the GPS tachymeters for gathering real-time speed are arranged on automobile
Interior, the output end of GPS tachymeters connects another road input of data acquisition unit, the output end connection meter of data acquisition unit
Calculation machine.
Described computer is a kind of is used for according to sound in the left and right ear noise sound pressure levels acquisition driver's cabin of driver
Arbitrarily downgrade horizontal device.
The beneficial effects of the utility model are：The plus noise test device of the automobile different solar terms door aperture, including solar term
Door aperture tester, data acquisition unit, the first microphone, the second microphone, photoelectric sensor, GPS tachymeters and computer,
Obtain noise sound level in driver's cabin by the data of collection, its have it is simple in construction, reasonable in design, be easily installed and tie up
The advantage of shield.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the installation diagram of the plus noise test device of automobile different solar terms door aperture in the utility model embodiment；
Fig. 2 is microphone arrangement schematic diagram in the utility model embodiment, and (a) is automobile interiors, and (b) is microphone
Arrange schematic diagram；
Fig. 3 is the structured flowchart of the plus noise test device of automobile different solar terms door aperture in the utility model embodiment；
Fig. 4 be in the utility model embodiment in the case of throttle opening 90% vehicle motor rotating speed from 1000rpm-
4000rpm sound pressure level is with the elevated noise curve of rotating speed；
Fig. 5 is elevated with speed for the sound pressure level of vehicle speed from 30km/h-120km/h in the case of throttle opening 80%
Noise curve；
Number explanation is as follows in figure：1 driving cabin, 2 engine crankshaft belt pulleys, 3 stationary fixtures, 4 photoelectric sensors, 5 hairs
It is motivation cabin, 6 power assemblies, 7 wire harness, 8 OBD detection mouths, 9 gas pedal stopping means, 10 fixing support for microphone, 11 transaudient
Device, 12 microphones, 13 steering wheels, 14 instrument boards, 15 throttle opening testers, 16 data acquisition units, 17 computers,
18GPS tachymeters.
Embodiment
Enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings 1~Fig. 5
The utility model is described in further detail with embodiment.
Embodiment：
The model Elm327 of throttle opening tester 15 employed in the present embodiment, the model of photoelectric sensor 4
The model PCB.377A12 of the model X-pro GPS of Keyemce FS01, GPS tachymeter 18, microphone 11 and microphone 12,
The model HEAD Acoustic 6B of data acquisition unit 16.The power assembly 6 being arranged in enging cabin 5 passes through wire harness 7
It is connected respectively with OBD detection mouths 8, gas pedal stopping means 9.Steering wheel 13, the rear of instrument board, seat in driving cabin 1
Fixing support for microphone 10 is provided with above chair.
The plus noise test device of automobile different solar terms door aperture in the present embodiment use, including throttle opening test
Instrument 15, data acquisition unit 16, microphone 11, microphone 12, photoelectric sensor 4, GPS tachymeters 18 and computer 17, wherein,
The OBD detection mouths 8 of automobile are connected with the input of throttle opening tester 15, the output end of throttle opening tester 15 with
The connection of input all the way of data acquisition unit 16, the fixing support for microphone of the left and right ear position of driver in driving cabin 1
10 two ends set microphone 11 and microphone 12 respectively, microphone 11, the output end of microphone 12 and data acquisition unit 16
Another road input connection, the photoelectric sensor 4 for gathering engine rotational speed signal is fixed on outside engine crankshaft belt pulley 2
On side stationary fixture 3, the output end of photoelectric sensor 4 connects the another road input of data acquisition unit 16, gathers real-time car
The GPS tachymeters 18 of speed are arranged in automobile, another road input of the output end connection data acquisition unit 16 of GPS tachymeters 17
End, the output end connection computer 17 of data acquisition unit 16.
The course of work of the plus noise test device of automobile different solar terms door aperture of the present utility model is as follows：
（1）By adjusting gas pedal stopping means 9, adjust and fix to step on when gas pedal and fitted with stopping means
Subject throttle aperture is the position of 90% gas pedal stopping means 9, and when throttle opening is 90%, gear selection is 2 grades,
Vehicle is accelerated, and is tested during engine speed rises to 4000rpm from 1000rpm with data acquisition device 16
Data acquisition, repeatedly, experiment is completed after 4 groups of Validity Test data of record.It is soft with the Artemis data analyses of Lang De companies
Part is divided the sound pressure level curve that the sound pressure level of driver or so ear noise rises with test vehicle engine speed or speed
Analysis, calculates the sound pressure level curve gone for and carrys out noise sound level in objective evaluation accelerating mode driver's cabin.
（2）By adjusting adjustable gas pedal stopping means 9, adjust and fix when gas pedal is stepped on and spacing dress
Position of the laminating subject throttle aperture for 70% gas pedal stopping means 9 is put, gear is selected when throttle opening is 70%
For 3 grades, accelerated, HEAD Acoustic 6B data acquisitions are used during speed is risen on 120km/h from 50km/h
Device carries out test data collection, repeatedly, and experiment is completed after 4 groups of Validity Test data of record.Data analysing method is with real
Example 1.
（3）By adjusting adjustable gas pedal stopping means 9, adjust and fix when gas pedal is stepped on and spacing dress
Position of the laminating subject throttle aperture for 80% gas pedal stopping means 9 is put, gear is selected when throttle opening is 80%
For 3 grades, accelerated, HEAD Acoustic 6B data are used during engine speed rises to 5000rpm from 1000rpm
Harvester carries out test data collection, repeatedly, and experiment is completed after 4 groups of Validity Test data of record.
It can be seen from above-mentioned test result in throttle opening under the same conditions, with engine speed or speed
Rise, also with rise, but under certain engine speed or speed, the sound pressure level of noise occurs the sound pressure level level of noise
Peak value.
It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed
Or replace, it should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power
The protection domain that profit is required is defined.
Claims (2)
1. a kind of plus noise test device of automobile different solar terms door aperture, it is characterised in that including throttle opening tester,
Data acquisition unit, the first microphone, the second microphone, photoelectric sensor, GPS tachymeters and computer, wherein, automobile
OBD detection mouths are connected with the input of throttle opening tester, output end and the data acquisition list of throttle opening tester
The connection of input all the way of member, the first microphone, the second microphone are separately positioned in the left and right ear of driver, and first is transaudient
Another road input connection of device, the output end of the second microphone and data acquisition unit, for gathering engine rotational speed signal
Photoelectric sensor be fixed on the outside of engine crankshaft belt pulley, the output end connection data acquisition unit of photoelectric sensor is again
Input, gathers the GPS tachymeters of real-time speed in automobile all the way, the output end connection data acquisition of GPS tachymeters
Another road input of unit, the output end connection computer of data acquisition unit.
2. the plus noise test device of automobile different solar terms door aperture as claimed in claim 1, it is characterised in that described meter
Calculation machine is a kind of device for being used for obtaining noise sound level in driver's cabin according to the left and right ear noise sound pressure levels of driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720162735.3U CN206593867U (en) | 2017-02-23 | 2017-02-23 | A kind of plus noise test device of automobile different solar terms door aperture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720162735.3U CN206593867U (en) | 2017-02-23 | 2017-02-23 | A kind of plus noise test device of automobile different solar terms door aperture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206593867U true CN206593867U (en) | 2017-10-27 |
Family
ID=60126720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720162735.3U Expired - Fee Related CN206593867U (en) | 2017-02-23 | 2017-02-23 | A kind of plus noise test device of automobile different solar terms door aperture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206593867U (en) |
-
2017
- 2017-02-23 CN CN201720162735.3U patent/CN206593867U/en not_active Expired - Fee Related
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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: 20171027 |