CN108844756A - System and method for detecting running vibration and noise of automobile fuel pump and fuel tank assembly - Google Patents
System and method for detecting running vibration and noise of automobile fuel pump and fuel tank assembly Download PDFInfo
- Publication number
- CN108844756A CN108844756A CN201811038154.4A CN201811038154A CN108844756A CN 108844756 A CN108844756 A CN 108844756A CN 201811038154 A CN201811038154 A CN 201811038154A CN 108844756 A CN108844756 A CN 108844756A
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- China
- Prior art keywords
- fuel tank
- fuel pump
- tank assembly
- fuel
- pump
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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.)
- Pending
Links
- 239000002828 fuel tank Substances 0.000 title claims abstract description 90
- 239000000446 fuel Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 12
- 239000003921 oil Substances 0.000 claims description 15
- 230000035939 shock Effects 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 12
- 238000013480 data collection Methods 0.000 claims description 11
- 239000000295 fuel oil Substances 0.000 claims description 11
- 238000007405 data analysis Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 claims description 6
- 238000012806 monitoring device Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 238000006467 substitution reaction Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 9
- 238000002955 isolation Methods 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000010761 intermediate fuel oil Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention relates to the field of vehicle detection, in particular to a system and a method for detecting running vibration and noise of an automobile fuel pump and oil tank assembly. Compared with the traditional detection system, the invention adds the detection rack, and the arrangement of the detection rack can well simulate the assembly form of the fuel pump and the fuel tank assembly on the whole vehicle, reduce the influence on the test caused by the rack installation mode, and has better relevance with the state of the whole vehicle.
Description
Technical field
The present invention relates to field of vehicle detection, specifically a kind of detection automobile fuel pump and fuel tank assembly operational shocks
And the system and method for noise.
Background technique
With popularizing for automobile, people are when buying automotive goods, it is desirable that and it is also higher and higher, especially for automobile product
Quality, therefore after vehicle production component detection work be particularly important.Currently, total for fuel pump for motor vehicle and fuel tank
At vibration and noise there is no reasonable test macro and methods, most of car manufacturers are only with the acoustic pressure obtained roughly
Grade is tested after assembly is installed on vehicle, can not be tested and be evaluated for assembly, this method efficiency compared with
It is low and can not propose target value and constraint criteria to assembly component.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide reasonable, effective evaluation and test fuel pump for motor vehicle and
The system and method for fuel tank assembly operational shock and noise characteristic.
To achieve the goals above, the technical solution adopted by the present invention is：
The system for detecting automobile fuel pump and fuel tank assembly operational shock and noise, fuel pump and fuel tank assembly to be detected
It is fixed on testboard bay, has microphone, the combustion by mounting bracket suspention above the fuel pump and fuel tank assembly
Accelerometer is fixed on oil pump and fuel tank assembly, the accelerometer and free field microphone output signal to data acquisition
Analyzer.
The fuel pump and fuel tank assembly include fuel pump, and the oil outlet and oil return opening of the fuel pump pass through pipeline road
It is connected.
The testboard bay includes substrate, is respectively equipped with vertical plate, each vertical plate upper surface at the both ends of substrate
It is equipped with the threaded hole for being connected and fixed bolt.
The testboard bay further includes the fuel tank bandage for connecting fuel tank, and the fuel tank one end of bandage is connected with vertical plate
It connects, the other end is connected with the fuel tank in fuel pump to be detected and fuel tank assembly.
The fuel pump of the fuel pump and fuel tank assembly connects D.C. regulated power supply by end voltage monitoring device.
The system also includes level meter, the level meter is placed at fuel pump flange face.
A kind of detection method for the system detecting automobile fuel pump and fuel tank assembly operational shock and noise, the detection side
Method includes the following steps:
Fuel pump to be detected and fuel tank assembly are fixed on testboard bay by step 1, and in fuel tank fill oil liquid or
Substitute liquid；
Step 2, installation accelerometer and microphone；
Step 3, fuel oil pump work, data collection and analysis instrument acquire signal by microphone and accelerometer and show acquisition
Data or waveform diagram.
After the completion of step 1 operation, horizontal measurement first is carried out to fuel pump and fuel tank assembly using level meter, according to
It is required that adjustment testboard bay height so that fuel pump and fuel tank assembly be placed in Installation posture on testboard bay and fuel pump and
Installation posture of the fuel tank assembly on vehicle is identical.
Accelerometer is equipped with multiple in the step 2, at least one in the accelerometer is arranged in fuel pump and oil
On vibration isolator in the box assembly or periphery of vibration isolator.
The advantage of the invention is that：
The present invention increases detection rack compared with traditional detection system, and the setting of detection rack can be very good simulation fuel oil
The assembling form of pump and fuel tank assembly on vehicle, reduces since rack mounting means affects test, with vehicle shape
State relevance is more preferable.
Detailed description of the invention
Below to each width attached drawing of description of the invention expression content and figure in label be briefly described：
Fig. 1 is each component layout figure of the present invention.
Fig. 2 is another example structure schematic diagram of detection rack in the present invention.
Fig. 3 is detection rack vertical plate and the structural schematic diagram after circuit board connection structure optimization in the present invention.
Fig. 4 is the top view of fuel pump of the present invention.
Label in above-mentioned figure is：
1- fuel pump and fuel tank assembly, 2- testboard bay, 3- mounting bracket, 4- accelerometer, 5- microphone, 6- direct current are steady
Voltage source, the end 7- voltage monitoring device, 8- data collection and analysis instrument, 9- fuel tank bandage
Specific embodiment
A specific embodiment of the invention is made further detailed below against attached drawing by the description to optimum embodiment
Thin explanation.
The invention discloses a kind of detection automobile fuel pump and fuel tank assembly operational shock and the system of noise, the system packets
Testboard bay 2 is included, while fuel pump to be detected and fuel tank assembly 1 are fixed on testboard bay 2, and require fuel pump to be detected
And fuel tank is combined according to design point, and is had above fuel pump to be detected and fuel tank assembly 1 by the suspention of mounting bracket 3
Microphone 5 can be improved detection stability and reliability, while fuel pump to be detected and fuel tank assembly 1 by suspension method
On be fixed with accelerometer 4,4 three accelerometers 4 of preferred piezoelectric type of accelerometer；Accelerometer 4 and free field microphone 5 need
Optimal detection effect could be obtained by being mounted on reasonable, scientific position, and noise measuring point is arranged in fuel oil by the present invention
Right above pump at 300mm ± 20mm, at preferably 300mm；Accelerometer 4 and free field microphone 5 export in the present invention simultaneously
Signal is to data collection and analysis instrument 8；Data collection and analysis instrument 8 is that can acquire 5 signal of accelerometer 4 and free field microphone
Processing equipment, and can show the data or waveform diagram of (record, analysis) acquisition signal, existing some oscillography instruments can be made
For data collection and analysis instrument 8.
Accelerometer 4 is exactly vibration acceleration sensor in the present invention, this is a commonly used equipment, is repeated no more.
Preferably, intermediate fuel oil of the present invention pump and fuel tank assembly 1 include fuel pump, the oil outlet 111 of fuel pump 11 with
Oil return opening 112 is connected by pipeline road 113；By pipeline road 113 short as far as possible by the oil outlet of fuel pump and oil return
Mouth is directly connected to, so that fuel oil or substitution liquid that fuel pump pumps out, flow back into fuel tank by pipe pipeline road 113；It eliminates outer
Portion's oil-stocking equipment and longer pipeline road, save the cost.
Preferably, testboard bay 2 includes substrate 21 in the present invention, vertical plate is respectively equipped at the both ends of substrate 21
22, each 22 upper surface of vertical plate is equipped with the threaded hole for being connected and fixed bolt, and substrate 21 provides base support here, erects
Straight panel 22 provides height, and threaded hole provides outer bolt and fastens place, and setting in this way may be implemented to pacify to from strap bolt
The fuel tank assembly in dress hole is attached, so that fuel tank assembly connection is more convenient, it is in practice as an optimization, every in the present invention
A vertical plate 22 is all connected by transverse plate 23 with substrate 21, and substrate 21 is equipped with multiple adjusting bolts hole, and each spiral shell
Keyhole is transversely arranged, while connecting hole also is provided on transverse plate 23, and transverse plate 23 is passed through by bolt and adjusts bolt hole and connection
The connection with substrate 21 is realized in hole, and then realizes the connection of vertical plate 22 and substrate 21, such setting, so that transverse plate 23 exists
Position is adjustable on substrate 21, so that the distance between two vertical plates 22 change, such setting, so that perpendicular
Straight panel 22 can be adapted for the connection of the fuel pump and fuel tank assembly 1 of different model.
Preferably, testboard bay 2 further includes the fuel tank bandage 9 for connecting fuel tank, fuel tank bandage 9 one in the present invention
End is connected with vertical plate 22, and the other end is connected with the fuel tank in fuel pump to be detected and fuel tank assembly 1, fuel pump and fuel tank
Assembly 1 and the assembly relation of fuel tank bandage 9 are consistent with vehicle, and fuel tank bandage 9 and testboard bay 2 pass through on fuel tank bandage 9
Bolt hole, be fixed with bolts on vertical plate 22, so that when fuel pump and fuel tank assembly 1 and vehicle assemble
State is consistent.
Preferably, the fuel pump of intermediate fuel oil pump of the present invention and fuel tank assembly 1 is by holding voltage monitoring device 7 to connect directly
Flow regulated power supply 6；The fuel pump of fuel pump and fuel tank assembly 1 connects D.C. regulated power supply 6 by end voltage monitoring device 7；Directly
Stream regulated power supply 6 provides required voltage for fuel pump, and is monitored by end voltage monitoring device 7, avoids D.C. regulated power supply 6
Detection is impacted；When data collection and analysis instrument 8 carries out data acquisition, voltage is held needed for being adjusted to, to fuel oil
Pump operation at least 10 seconds, and it is without exception when can be tested；Each channel is adjusted using the automatic gain function of acquisition system
Range ability makes signal peak be at least up to the half of full scale scale；Furthermore 10 seconds steady state datas are acquired, it is flat using energy
, guarantee at least 3 groups of preferable data of consistency；When data collection and analysis instrument 8 carries out data processing, each operating condition of noise calculation
The sound pressure level of overall sound pressure level and each main order within the scope of 20~8192Hz of lower auto-power spectrum, under each operating condition of vibration calculating from
Global vibration value within the scope of 1~6400Hz of power spectrum.
Preferably, further including level meter 10 in the present invention, level meter 10 is placed at fuel pump flange face；Level meter
10 pairs of fuel pumps and fuel tank assembly 1 carry out horizontal measurement, according to 2 height of adjustment testboard bay is required, so that fuel pump and fuel tank
It is identical as the Installation posture of fuel pump and fuel tank assembly 1 on vehicle that assembly 1 is placed in the Installation posture on testboard bay 2.
A kind of detection method for the system detecting automobile fuel pump and 1 operational shock of fuel tank assembly and noise, detection method
Include the following steps:
Fuel pump to be detected and fuel tank assembly 1 are fixed on testboard bay 2, and fill oil liquid in fuel tank by step 1
Or substitution liquid；
Step 2, installation accelerometer 4 and microphone 5；
Step 3, fuel oil pump work, data collection and analysis instrument 8 acquire signal by microphone 5 and accelerometer 4 and show
Acquire data or waveform diagram.
After the completion of step 1 operation, horizontal measurement first is carried out to fuel pump and fuel tank assembly 1 using level meter 10, according to wanting
2 height of adjustment testboard bay is sought, so that fuel pump and fuel tank assembly 1 are placed in Installation posture and fuel pump on testboard bay 2
And Installation posture of the fuel tank assembly 1 on vehicle is identical, reducing influences due to fuel pump and fuel tank assembly 1 place posture the problem of
Testing result.
Accelerometer 4 is equipped with multiple in step 2, at least one in accelerometer is arranged in fuel pump and fuel tank assembly 1
Vibration isolator on or vibration isolator periphery, the noise of vehicle fuel pump and fuel tank assembly 1, the noises of structure transmitting portions generates
Mechanism is, the vibration that when fuel oil pump work generates, and by connection with fuel tank and fuel medium, transfers vibrations to gas tank gage
Face is transmitted to vehicle body in order to which the vibration of tank surface is isolated, and is typically designed with vibration isolator (EPDM or PU foaming in fuel tank upper surface
Material), the vibration of tank surface is transmitted to vehicle body by the decaying of vibration isolator, vibrational excitation is generated to vehicle body, thus in the car
Form fuel oil pump noise；
Vibration isolator acts on the vibration isolation of vibration, can be as follows using the conceptual description of vibration isolation rate：
In formula, TL- vibration transmissibility or vibration isolation rate, aaDrive end vibration, apPartner vibration；
For the fuel tank assembly on vehicle, aaFor the vibration (being free of vibration isolator) of tank surface vibration isolation pad position, apFor
Tank surface is transmitted to the vibration of body side；In the case where vibration isolator anti-vibration performance TL is certain, tank surface vibration isolator is reduced
The vibration a of positiona, the vibration a for being transmitted to body side can be reducedp, to reduce interior fuel oil pump noise, therefore, in rack
On, need to control the vibrational excitation of tank surface vibration isolation pad position.
So point position of the present invention selects at fuel tank vibration isolator, it, can be more to the vibration detection and control of these positions
The good vibration for reaching control and being transmitted on vehicle body, reduces the purpose of interior fuel oil pump noise.
Test system structure of the invention simultaneously is as shown in Figure 1, fuel pump and fuel tank assembly 1 are used by fuel tank bandage 9
It is bolted and is fixed on testboard bay 2, fuel pump flange face contains combustion in ground 500~600mm of vertical range, fuel tank
Oil or substitution liquid, the requirement of oil mass are selected by test purpose；It is vertical at fuel pump flange face central point, surface 300mm
It arranges microphone 5, in tank surface vibration isolation pad position, arranges vibration acceleration sensor, vibration, noise data are passed through into connection
Line is connect with data collection system；In test, fuel pump is powered by external constant voltage dc source, and using multimeter or other
Voltage monitor, monitors fuel pump end voltage, and the power parameters such as supply voltage are defined by test purpose.
Obviously present invention specific implementation is not subject to the restrictions described above, as long as using method concept and skill of the invention
The improvement for the various unsubstantialities that art scheme carries out, it is within the scope of the present invention.
Claims (9)
1. the system for detecting automobile fuel pump and fuel tank assembly operational shock and noise, it is characterised in that：Fuel pump to be detected
And fuel tank assembly is fixed on testboard bay, suspended in midair above the fuel pump and fuel tank assembly by mounting bracket have it is transaudient
Device is fixed with accelerometer, the accelerometer and free field microphone output letter on the fuel pump and fuel tank assembly
Number to data collection and analysis instrument.
2. the system of detection automobile fuel pump according to claim 1 and fuel tank assembly operational shock and noise, feature
It is, the fuel pump and fuel tank assembly include fuel pump, and oil outlet and the oil return opening of the fuel pump pass through pipeline road phase
Connection.
3. the system of detection automobile fuel pump according to claim 1 and fuel tank assembly operational shock and noise, feature
It is, the testboard bay includes substrate, is respectively equipped with vertical plate at the both ends of substrate, sets on each vertical plate upper surface
There is the threaded hole for being connected and fixed bolt.
4. the system of detection automobile fuel pump according to claim 3 and fuel tank assembly operational shock and noise, feature
It is, the testboard bay further includes the fuel tank bandage for connecting fuel tank, and the fuel tank one end of bandage is connected with vertical plate,
The other end is connected with the fuel tank in fuel pump to be detected and fuel tank assembly.
5. according to claim 1-4 for detecting fuel pump for motor vehicle and fuel tank assembly operational shock and noise
The system of characteristic, which is characterized in that the fuel pump of the fuel pump and fuel tank assembly is straight by end voltage monitoring device connection
Flow regulated power supply.
6. the system of detection automobile fuel pump according to claim 2 and fuel tank assembly operational shock and noise, feature
It is, the system also includes level meter, the level meter is placed at fuel pump flange face.
7. the system of detection automobile fuel pump as claimed in any one of claims 1 to 6 and fuel tank assembly operational shock and noise
Detection method, it is characterised in that：The detection method includes the following steps:
Fuel pump to be detected and fuel tank assembly are fixed on testboard bay by step 1, and oil liquid or substitution are filled in fuel tank
Liquid；
Step 2, installation accelerometer and microphone；
Step 3, fuel oil pump work, data collection and analysis instrument acquire signal by microphone and accelerometer and show acquisition data
Or waveform diagram.
8. detection method according to claim 7, which is characterized in that after the completion of step 1 operation, first using level
Instrument carries out horizontal measurement to fuel pump and fuel tank assembly, according to adjustment testboard bay height is required, so that fuel pump and fuel tank are total
It is identical as the Installation posture of fuel pump and fuel tank assembly on vehicle at the Installation posture being placed on testboard bay.
9. detection method according to claim 7, which is characterized in that accelerometer is equipped with multiple, institute in the step 2
It states on the vibration isolator that at least one in accelerometer is arranged in fuel pump and fuel tank assembly or the periphery of vibration isolator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038154.4A CN108844756A (en) | 2018-09-06 | 2018-09-06 | System and method for detecting running vibration and noise of automobile fuel pump and fuel tank assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038154.4A CN108844756A (en) | 2018-09-06 | 2018-09-06 | System and method for detecting running vibration and noise of automobile fuel pump and fuel tank assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108844756A true CN108844756A (en) | 2018-11-20 |
Family
ID=64189659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811038154.4A Pending CN108844756A (en) | 2018-09-06 | 2018-09-06 | System and method for detecting running vibration and noise of automobile fuel pump and fuel tank assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108844756A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916503A (en) * | 2019-03-22 | 2019-06-21 | 重庆长安汽车股份有限公司 | A kind of fuel tank rocks sounding method for testing |
| CN110273797A (en) * | 2019-05-10 | 2019-09-24 | 广汽丰田汽车有限公司 | Fuel pump and fuel pump pulsations test method |
| CN111473988A (en) * | 2020-05-27 | 2020-07-31 | 北京达新新创机械有限公司 | Battering ram test platform |
| CN111964771A (en) * | 2020-09-01 | 2020-11-20 | 延锋伟世通汽车电子有限公司 | Acceleration sensor-based touch panel vibration automatic test system and method |
| CN113532630A (en) * | 2021-06-24 | 2021-10-22 | 哈尔滨工程大学 | Marine vibration noise rapid test evaluation device |
| CN113959708A (en) * | 2021-10-11 | 2022-01-21 | 浙江吉利控股集团有限公司 | Automobile fuel tank valve body noise test rack and valve body noise test method |
| CN115355982A (en) * | 2022-07-12 | 2022-11-18 | 广州汽车集团股份有限公司 | Noise test system, noise processing method, device and storage medium |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916503A (en) * | 2019-03-22 | 2019-06-21 | 重庆长安汽车股份有限公司 | A kind of fuel tank rocks sounding method for testing |
| CN110273797A (en) * | 2019-05-10 | 2019-09-24 | 广汽丰田汽车有限公司 | Fuel pump and fuel pump pulsations test method |
| CN111473988A (en) * | 2020-05-27 | 2020-07-31 | 北京达新新创机械有限公司 | Battering ram test platform |
| CN111964771A (en) * | 2020-09-01 | 2020-11-20 | 延锋伟世通汽车电子有限公司 | Acceleration sensor-based touch panel vibration automatic test system and method |
| CN113532630A (en) * | 2021-06-24 | 2021-10-22 | 哈尔滨工程大学 | Marine vibration noise rapid test evaluation device |
| CN113959708A (en) * | 2021-10-11 | 2022-01-21 | 浙江吉利控股集团有限公司 | Automobile fuel tank valve body noise test rack and valve body noise test method |
| CN113959708B (en) * | 2021-10-11 | 2024-03-12 | 浙江吉利控股集团有限公司 | Automobile fuel tank valve body noise test bench and valve body noise test method |
| CN115355982A (en) * | 2022-07-12 | 2022-11-18 | 广州汽车集团股份有限公司 | Noise test system, noise processing method, device and storage medium |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181120 |
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