CN201666815U - Integrated test system for automobile noise - Google Patents
Integrated test system for automobile noise Download PDFInfo
- Publication number
- CN201666815U CN201666815U CN2009200485685U CN200920048568U CN201666815U CN 201666815 U CN201666815 U CN 201666815U CN 2009200485685 U CN2009200485685 U CN 2009200485685U CN 200920048568 U CN200920048568 U CN 200920048568U CN 201666815 U CN201666815 U CN 201666815U
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Abstract
The utility model relates to an integrated test system for automobile noise, which is provided with a noise acquisition device and a data processor and is characterized in that the noise acquisition device comprises an acquisition device for the noise inside and outside an automobile and an acquisition device for the noise for a tire and a road surface; the acquisition device for the noise inside and outside the automobile is formed in a way that a microphone is connected with an amplifier, and the acquisition device for the noise inside and outside the automobile is connected to the data processor by a cable; the acquisition device for the noise for the tire and the road surface consists of a microphone and a support, wherein the support is arranged on the hub of a wheel of the automobile, the microphone is arranged on the support, and the output of the microphone is transmitted to the data processor by the cable; and an inner circuit of the data processor consists of a multi-channel weighing amplifier, a filter, a radiodetector, an analog-to-digital converter, a CPU, a RAM, a ROM and a USB/RS232 communication circuit. The system is also provided with a portable computer; and the output of the data processor is connected with the computer. The integrated test system can comprehensively measure the noise at any position inside and outside the automobile, can realize various analysis and evaluations for the nose at each channel and has simple structure, convenient and fast operation and strong real time.
Description
Technical field
The utility model relates to a kind of noise testing instrument, is specifically related to a kind of placing in the automobile, can gather and analyze the automobile noise integrated test system of external noise in Noise Generated by Running Vehicles and the car simultaneously.
Background technology
Along with constantly riseing of China's automobile pollution and utilization rate, automobile noise highlights day by day to people's negative effect, and noise pollution has not only seriously been destroyed environment, has reduced people's quality of life simultaneously.To this, the researcher of auto industry and transportation industry has been taked a large amount of measures, as improving motor car engine, develop low noise tire, install soundproof wall additional, developing environmental protection noise reduction ground surface material etc.But, reduce the implementation result of noise pollution measures for these, domestic still do not have a kind of special instrument and can carry out fast and effeciently that scene detected and evaluation.Present available mode is to test by sound meter or noise analysis instrument, this general detection means, and no matter from detection method, measuring ability, still to evaluation of result, all underaction, efficient are lower.Because the location is inconvenient, the frictional noise on tire and road surface can't accurately detect during for running car in addition.
Summary of the invention
In order to overcome the deficiency of existing means, the utility model provides a kind of automobile noise integrated test system, this system is specifically designed to the detection of automobile noise, the frictional noise in the time of can gathering interior external noise of car and running car simultaneously between tire and the road surface, and carry out real-time analysis by computing machine and handle.
The technical scheme that the utility model adopted is:
A kind of automobile noise integrated test system is provided with noise harvester and data processor, it is characterized in that, described noise harvester includes: external noise harvester and tire and road rumble harvester in the car;
External noise harvester in the described car connects amplifier by microphone and forms, and is connected to data processor by cable;
Described tire and road rumble harvester are made up of microphone and support, and described support is installed on the wheel hub of automotive wheel, are positioned at the outside of tire, and described microphone is rack-mount; The output of this microphone is sent to data processor by cable;
Described data processor is placed or is installed in the automobile, and internal circuit is made up of multichannel weighted amplifier, wave filter, wave detector, analog to digital converter, CPU, RAM, ROM and USB/RS232 telecommunication circuit;
Also be provided with portable computer in this system; The output of described data processor connects this portable computer.
The utility model has following prioritization scheme:
1, described support is divided into pedestal, crossbeam and vertical rod three parts, is cruciform;
2, the microphone in described tire and the road rumble harvester is provided with two, is installed in the two ends of rack beam respectively and perpendicular to crossbeam, apart from 3 inches on ground (76mm), apart from 4 inches of tire lateral surfaces (102mm);
3, behind the noise electric signal that external noise harvester and tire and road rumble harvester send in the described data processor reception car, simultaneously or timesharing to these several signals nurse one's health, filtering and analog to digital conversion, and send digitized noise data to portable computer by USB or RS232 cable.
4, described portable computer is to be connected with data processor by USB or RS232 cable, and Windows operating system and automobile noise analysis software wherein are installed.
More particularly, automobile noise integrated test system of the present utility model comprises the interior external noise harvester of car, tire and road rumble harvester, data processor and portable computer totally four parts.
External noise harvester in the car, form by microphone and amplifier, be connected to data processor by cable, can place, install or hand-held optional position (radius is a cable length) to automobile, be used for gathering the noise of this location point and be converted to electric signal and be sent to data processor.This installs collectable noise type internal car noise (as engine noise, pilothouse noise, compartment noise etc.) and pass-by noise (as neighbourhood noise, traffic noise etc.).
Tire and road rumble harvester, form by microphone, cable and support, support is divided into pedestal, crossbeam and vertical rod three parts, be cruciform, be installed on the wheel hub of automotive wheel, be positioned at the outside of tire, a pair of microphone is installed in the two ends of rack beam respectively and perpendicular to crossbeam, apart from 3 inches on ground (76mm), apart from 4 inches of tire lateral surfaces (102mm), the front and rear edge noise that tire and pavement friction produced when this device was used for gathering running car, and be converted to electric signal, be sent to data processor by cable.This Unit Installation mode is followed the U.S. " ASTM AASHTO Draft Noise Intensity Std OBSI " standard.
Data processor is placed or is installed in the automobile, and internal circuit is made up of multichannel weighted amplifier, wave filter, wave detector, analog to digital converter, CPU, RAM, ROM and USB/RS232 telecommunication circuit.During work, data processor receives the noise electric signal that interior external noise harvester of car and tire and road rumble harvester send, simultaneously or timesharing to these several signals nurse one's health, filtering and analog to digital conversion, and send digitized noise data to portable computer by USB or RS232 cable.
Portable computer is positioned in the automobile, is connected with data processor by USB or RS232 cable, and Windows operating system and automobile noise analysis software wherein are installed.During work, noise analysis software obtains digitized each road noise information, and carry out real-time data processing and analysis, comprise multiple evaluation meanses such as transient state A sound level La, transient state C sound level Lc, equivalent continuous sound level Leq, statistics sound level Ln, traffic noise index TNI, noise pollution level NPL, third-octave analysis, fft analysis, printablely after the end of test (EOT) go out appraisal report.Wherein, the processing and the evaluation method of tire and road rumble are followed the U.S. " ASTM AASHTODraft Noise Intensity Std OBSI " standard.
The beneficial effects of the utility model are, realized a kind of specialized tools that detects automobile noise, but the noise of optional position, composite measurement automobile inside and outside, the frictional noise on tire and road surface when particularly scientifically measuring running car, and can carry out multiple analysis and evaluation to each channel noise, it is simple in structure, simple operation, real-time.
Description of drawings
Fig. 1 is the module diagram of automobile noise integrated test system.
Fig. 2 is the structural drawing of tire and road rumble harvester unit among Fig. 1, comprises tire, cross bracket and front and rear edge microphone.The left side of Fig. 2 is a front elevation, and the right side is a side view, is that tire contacts synoptic diagram with ground below.Among Fig. 2,1. car body, 2. rack rod, 3. carrier base, 4. rack beam, 5. microphone bar, 6. tire, 7. trailing edge microphone, 8. leading edge microphone, 9. double-screw bolt, 10. carrier, 11. wheel hub, 12. screws, 13. spacing rings, 14. surface of contact back edge, 15. surface of contact leading edges.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
External noise harvester in the car is made up of microphone and amplifier, is connected to the input end of data processor by the special-purpose prolongation of microphone cable (the longest can to 10 meters).
Tire and road rumble harvester comprise tire, cross bracket and microphone, and microphone is fixed on the automotive hub by support, are connected to the input end of data processor by cable.
Data processor, form by mimic channel and digital circuit, control by high-speed CPU, by automobile mounted storage battery or the power supply of cigar lighter power supply, circuit board is installed in the strong metallic shield box of antijamming capability, integral body is placed or is installed in the automobile, and its input end receives the noise signal of the interior external noise harvester of car and tire and road rumble harvester, sends digitized noise data to portable computer through internal circuit processing back by USB or RS232 cable.
Portable computer is positioned in the automobile, is connected with data processor by USB or RS232 cable, and Windows operating system and automobile noise analysis software wherein are installed.
In Fig. 2, with reference to front elevation, the concrete structure of tire and road rumble harvester and principle of work are, carrier 10 is installed on the automotive hub 11 by three double-screw bolts, the axle center of carrier 10 is inserted in carrier base 3 centers and is used the finger screw retention, carrier base 3 is an one with rack rod 2 and rack beam 4, the vibrations noise of the rack rod 2 that the spacing ring 13 of embedded foam-rubber cushion causes when being used for absorbing running car, but its perforate is required to be support keeps certain activity space, and support is stuck and causes carrier base 3 and the stressed damage in coupling part, carrier 10 axle center when avoiding the vehicle severe jolt.Screw 12 is used for spacing ring 13 is fixed on the car body 1.Microphone bar 5 is installed on the rack beam 4, its horizontal level of scalable and vertical position, and its bottom is separately installed with leading edge microphone 8 and trailing edge microphone 7.Reference side view, leading edge microphone 8 and trailing edge microphone 7 are all apart from 3 inches on ground (76mm), apart from 4 inches of tire lateral surfaces (102mm); In addition, leading edge microphone 8 subpoint on the ground is positioned on the straight line at tire and ground contact surface leading edge 15 places, and trailing edge microphone 7 subpoint on the ground is positioned on the straight line at tire and ground contact surface back edge 14 places.
Claims (4)
1. an automobile noise integrated test system is provided with noise harvester and data processor, it is characterized in that, described noise harvester includes: external noise harvester and tire and road rumble harvester in the car;
External noise harvester in the described car connects amplifier by microphone and forms, and is connected to data processor by cable;
Described tire and road rumble harvester are made up of microphone and support, and described support is installed on the wheel hub of automotive wheel, are positioned at the outside of tire, and described microphone is rack-mount; The output of this microphone is sent to data processor by cable;
Described data processor is placed or is installed in the automobile, and internal circuit is made up of multichannel weighted amplifier, wave filter, wave detector, analog to digital converter, CPU, RAM, ROM and USB/RS232 telecommunication circuit;
Also be provided with portable computer in this system; The output of described data processor connects this portable computer.
2. automobile noise integrated test system according to claim 1 is characterized in that, described support is divided into pedestal, crossbeam and vertical rod three parts, is cruciform.
3. automobile noise integrated test system according to claim 1 and 2 is characterized in that, the microphone in described tire and the road rumble harvester is provided with two, is installed in the two ends of rack beam respectively and perpendicular to crossbeam.
4. automobile noise integrated test system according to claim 3 is characterized in that, the installation site of the microphone in described tire and the road rumble harvester is apart from ground 76mm, apart from tire lateral surface 102mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200485685U CN201666815U (en) | 2009-10-23 | 2009-10-23 | Integrated test system for automobile noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200485685U CN201666815U (en) | 2009-10-23 | 2009-10-23 | Integrated test system for automobile noise |
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| Publication Number | Publication Date |
|---|---|
| CN201666815U true CN201666815U (en) | 2010-12-08 |
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|---|---|---|---|
| CN2009200485685U Expired - Fee Related CN201666815U (en) | 2009-10-23 | 2009-10-23 | Integrated test system for automobile noise |
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| CN (1) | CN201666815U (en) |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949775A (en) * | 2010-08-17 | 2011-01-19 | 奇瑞汽车股份有限公司 | Measuring method of ground reflection noise source |
| CN102211505A (en) * | 2011-05-06 | 2011-10-12 | 安徽佳通乘用子午线轮胎有限公司 | Device for measuring tire rotating speed and near-field noise |
| CN102393246A (en) * | 2011-10-22 | 2012-03-28 | 重庆长安汽车股份有限公司 | Noise evaluation method for automobile generator under finished automobile state |
| CN102589680A (en) * | 2012-02-29 | 2012-07-18 | 重庆长安汽车股份有限公司 | Method for quantitatively evaluating knocking noise of transmission system by using language definition |
| CN103703353A (en) * | 2011-07-28 | 2014-04-02 | 罗伯特·博世有限公司 | Device and method for testing a vehicle |
| CN104865081A (en) * | 2015-04-15 | 2015-08-26 | 清华大学 | Device and method used for testing cavity noises of tire |
| CN105115593A (en) * | 2015-09-23 | 2015-12-02 | 常州机电职业技术学院 | Method for testing noises of hybrid power automobile |
| CN105181113A (en) * | 2015-08-19 | 2015-12-23 | 交通运输部科学研究院 | Portable vehicle-mounted site test device for road and tyre noise |
| CN106092615A (en) * | 2016-08-23 | 2016-11-09 | 无锡吉兴汽车声学部件科技有限公司 | Portable vehicle Noise Acquisition system based on LabVIEW |
| CN106908250A (en) * | 2017-01-18 | 2017-06-30 | 同济大学 | A kind of evaluation method of body side wall cavity blocking block sound insulation property |
| CN107290046A (en) * | 2017-06-22 | 2017-10-24 | 长安大学 | A kind of internal car noise indoor test device and its method of testing |
| WO2018120408A1 (en) * | 2016-12-26 | 2018-07-05 | 合肥工大高科信息科技股份有限公司 | Online fault detection device installed in train car and used for high-speed train running component |
| CN108254066A (en) * | 2018-01-03 | 2018-07-06 | 上海工程技术大学 | Automobile Three-Dimensional Dynamic noise measuring identifying system and method based on neural network |
| CN108507793A (en) * | 2017-02-27 | 2018-09-07 | 华晨汽车集团控股有限公司 | A kind of test and evaluation method of vehicle different sound performance |
| CN109425491A (en) * | 2017-08-21 | 2019-03-05 | 郑州宇通客车股份有限公司 | A kind of vehicle sound absorption and insulation performance testing device |
| CN109752198A (en) * | 2018-12-28 | 2019-05-14 | 一汽-大众汽车有限公司 | A kind of tire match method and system based on vehicle noise control |
| CN110441076A (en) * | 2018-05-03 | 2019-11-12 | 上汽通用汽车有限公司 | Mute trailer |
| CN110631842A (en) * | 2019-10-15 | 2019-12-31 | 重庆长安汽车股份有限公司 | Method for testing surface noise source intensity of automobile side window |
| CN110672336A (en) * | 2019-09-20 | 2020-01-10 | 中国第一汽车股份有限公司 | Abnormal sound testing method, device, equipment and storage medium for vehicle |
| CN110865126A (en) * | 2019-12-21 | 2020-03-06 | 广州市番鸿汽车检测有限公司 | Detection device and detection method for automobile sound insulation material |
| CN111489532A (en) * | 2019-01-25 | 2020-08-04 | 沃尔沃汽车公司 | Acoustic vehicle alert system and method |
| CN112129402A (en) * | 2020-08-21 | 2020-12-25 | 东风汽车集团有限公司 | Abnormal sound source detection device |
| CN112924547A (en) * | 2021-01-28 | 2021-06-08 | 招商局公路信息技术（重庆）有限公司 | Tire/road surface in-situ noise acquisition device and method thereof |
| CN114088197A (en) * | 2021-11-19 | 2022-02-25 | 中国航空工业集团公司哈尔滨空气动力研究所 | Low-noise airflow internal noise measuring device |
| US11587544B2 (en) * | 2017-08-01 | 2023-02-21 | Harman Becker Automotive Systems Gmbh | Active road noise control |
-
2009
- 2009-10-23 CN CN2009200485685U patent/CN201666815U/en not_active Expired - Fee Related
Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949775B (en) * | 2010-08-17 | 2011-12-14 | 奇瑞汽车股份有限公司 | Measuring method of ground reflection noise source |
| CN101949775A (en) * | 2010-08-17 | 2011-01-19 | 奇瑞汽车股份有限公司 | Measuring method of ground reflection noise source |
| CN102211505B (en) * | 2011-05-06 | 2013-11-20 | 安徽佳通乘用子午线轮胎有限公司 | Device for measuring tire rotating speed and near-field noise |
| CN102211505A (en) * | 2011-05-06 | 2011-10-12 | 安徽佳通乘用子午线轮胎有限公司 | Device for measuring tire rotating speed and near-field noise |
| US9945758B2 (en) | 2011-07-28 | 2018-04-17 | Robert Bosch Gmbh | Device and method for testing a vehicle |
| CN103703353A (en) * | 2011-07-28 | 2014-04-02 | 罗伯特·博世有限公司 | Device and method for testing a vehicle |
| CN102393246A (en) * | 2011-10-22 | 2012-03-28 | 重庆长安汽车股份有限公司 | Noise evaluation method for automobile generator under finished automobile state |
| CN102393246B (en) * | 2011-10-22 | 2013-01-30 | 重庆长安汽车股份有限公司 | Noise evaluation method for automobile generator under finished automobile state |
| CN102589680B (en) * | 2012-02-29 | 2015-06-03 | 重庆长安汽车股份有限公司 | Method for quantitatively evaluating knocking noise of transmission system by using language definition |
| CN102589680A (en) * | 2012-02-29 | 2012-07-18 | 重庆长安汽车股份有限公司 | Method for quantitatively evaluating knocking noise of transmission system by using language definition |
| CN104865081A (en) * | 2015-04-15 | 2015-08-26 | 清华大学 | Device and method used for testing cavity noises of tire |
| CN105181113A (en) * | 2015-08-19 | 2015-12-23 | 交通运输部科学研究院 | Portable vehicle-mounted site test device for road and tyre noise |
| CN105115593A (en) * | 2015-09-23 | 2015-12-02 | 常州机电职业技术学院 | Method for testing noises of hybrid power automobile |
| CN106092615A (en) * | 2016-08-23 | 2016-11-09 | 无锡吉兴汽车声学部件科技有限公司 | Portable vehicle Noise Acquisition system based on LabVIEW |
| WO2018120408A1 (en) * | 2016-12-26 | 2018-07-05 | 合肥工大高科信息科技股份有限公司 | Online fault detection device installed in train car and used for high-speed train running component |
| US10866162B2 (en) | 2016-12-26 | 2020-12-15 | Hefei Gocom Information & Technology Co., Ltd. | Online fault detection device installed in train car and used for high-speed train running component |
| CN106908250A (en) * | 2017-01-18 | 2017-06-30 | 同济大学 | A kind of evaluation method of body side wall cavity blocking block sound insulation property |
| CN108507793A (en) * | 2017-02-27 | 2018-09-07 | 华晨汽车集团控股有限公司 | A kind of test and evaluation method of vehicle different sound performance |
| CN107290046B (en) * | 2017-06-22 | 2019-12-31 | 长安大学 | Indoor test device and test method for noise in vehicle |
| CN107290046A (en) * | 2017-06-22 | 2017-10-24 | 长安大学 | A kind of internal car noise indoor test device and its method of testing |
| US11587544B2 (en) * | 2017-08-01 | 2023-02-21 | Harman Becker Automotive Systems Gmbh | Active road noise control |
| CN109425491A (en) * | 2017-08-21 | 2019-03-05 | 郑州宇通客车股份有限公司 | A kind of vehicle sound absorption and insulation performance testing device |
| CN108254066A (en) * | 2018-01-03 | 2018-07-06 | 上海工程技术大学 | Automobile Three-Dimensional Dynamic noise measuring identifying system and method based on neural network |
| CN110441076A (en) * | 2018-05-03 | 2019-11-12 | 上汽通用汽车有限公司 | Mute trailer |
| CN109752198A (en) * | 2018-12-28 | 2019-05-14 | 一汽-大众汽车有限公司 | A kind of tire match method and system based on vehicle noise control |
| CN111489532A (en) * | 2019-01-25 | 2020-08-04 | 沃尔沃汽车公司 | Acoustic vehicle alert system and method |
| CN110672336A (en) * | 2019-09-20 | 2020-01-10 | 中国第一汽车股份有限公司 | Abnormal sound testing method, device, equipment and storage medium for vehicle |
| CN110631842A (en) * | 2019-10-15 | 2019-12-31 | 重庆长安汽车股份有限公司 | Method for testing surface noise source intensity of automobile side window |
| CN110865126A (en) * | 2019-12-21 | 2020-03-06 | 广州市番鸿汽车检测有限公司 | Detection device and detection method for automobile sound insulation material |
| CN112129402B (en) * | 2020-08-21 | 2021-07-13 | 东风汽车集团有限公司 | Abnormal sound source detection device |
| CN112129402A (en) * | 2020-08-21 | 2020-12-25 | 东风汽车集团有限公司 | Abnormal sound source detection device |
| CN112924547A (en) * | 2021-01-28 | 2021-06-08 | 招商局公路信息技术（重庆）有限公司 | Tire/road surface in-situ noise acquisition device and method thereof |
| CN112924547B (en) * | 2021-01-28 | 2023-03-10 | 招商局公路信息技术（重庆）有限公司 | Tire/road surface in-situ noise acquisition device and method thereof |
| CN114088197A (en) * | 2021-11-19 | 2022-02-25 | 中国航空工业集团公司哈尔滨空气动力研究所 | Low-noise airflow internal noise measuring device |
| CN114088197B (en) * | 2021-11-19 | 2023-07-14 | 中国航空工业集团公司哈尔滨空气动力研究所 | Low-noise air flow internal noise measuring device |
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| 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: 20101208 Termination date: 20171023 |