CN110749456A - System and method for testing opening and closing sound quality of side-sliding type vehicle door - Google Patents
System and method for testing opening and closing sound quality of side-sliding type vehicle door Download PDFInfo
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- CN110749456A CN110749456A CN201911055945.2A CN201911055945A CN110749456A CN 110749456 A CN110749456 A CN 110749456A CN 201911055945 A CN201911055945 A CN 201911055945A CN 110749456 A CN110749456 A CN 110749456A
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
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Abstract
The invention discloses a system and a method for testing the quality of opening and closing sound of a side-sliding type vehicle door, wherein the system comprises a vehicle door opening and closing trigger device, a sound collector, a bracket and a computer; the vehicle door opening and closing trigger device comprises a digital speedometer, an L-shaped bent pipe, a sleeve, a first sucker and a second sucker; digital speedometer includes the support, two metal needles and the speedometer probe that has speed display function, support and first sucking disc fixed connection, the installation that two metal needles are parallel to each other is on the support, first sucking disc can adsorb on the sideslip formula door, the speedometer probe is connected with the one end fixed connection of return bend, the straight tube section of the other end of return bend is inserted in the sleeve, be provided with on the sleeve and enable this straight tube section and sleeve pipe keep relatively fixed's fastening bolt, sleeve pipe and second sucking disc fixed connection, the second sucking disc can adsorb on the qianmen adjacent with the sideslip formula door. By adopting the method, the acoustic parameters reflecting the opening and closing sound quality of the side-sliding type vehicle door can be obtained, and the product development of the side-sliding type vehicle door is guided.
Description
Technical Field
The invention belongs to the field of automobile sound quality testing, and particularly relates to a system and a method for testing opening and closing sound quality of a side-sliding type automobile door.
Background
The quality of opening and closing sound of automobile doors is an important index of automobiles. From the moment when a customer touches an automobile, the opening and closing sound which is pleasant and comfortable can give a feeling of good vehicle performance and reliable quality to the user. At present, automobile manufacturers mainly study the opening and closing sound quality of the forward opening type automobile door more, but study the side sliding type automobile door less. The forward opening type door can be tightly pressed by the pressure of air flow when the automobile runs, so that the forward opening type door is safe and widely adopted by automobile manufacturers; the side-sliding type vehicle door has the greatest advantages that the space required for opening the door is small, passengers can conveniently get in and out of the vehicle, and the door opening mode is adopted by the side rear doors of many high-end MPVs, so that the research on the opening and closing sound quality of the vehicle door is more important.
At present, the quality research on the opening and closing sound of the forward opening type vehicle door is mature. However, because the opening and closing modes of the side-sliding type vehicle door are different, the testing system for testing the opening and closing sound quality of the forward opening type vehicle door cannot meet the testing requirement of the opening and closing sound quality of the side-sliding type vehicle door, and no method for testing the opening and closing sound quality of the side-sliding type vehicle door exists at present.
Disclosure of Invention
The invention aims to provide a system and a method for testing the opening and closing sound quality of a side-sliding type vehicle door, so as to obtain acoustic parameters reflecting the opening and closing sound quality of the side-sliding type vehicle door and guide the product development of the side-sliding type vehicle door.
The system for testing the opening and closing sound quality of the side-sliding type vehicle door comprises a vehicle door opening and closing trigger device, a sound collector, a height-adjustable support and a computer, wherein the sound collector is arranged on the support and is positioned at a position required by testing, and the sound collector is electrically connected with the computer; the vehicle door opening and closing trigger device comprises a digital speedometer, an L-shaped bent pipe, a sleeve, a first sucker and a second sucker; the digital speedometer comprises a support, two metal needles and a speedometer probe with a speed display function, wherein the support is fixedly connected with a first suction disc, the two metal needles are arranged on the support in parallel, the first suction disc can be adsorbed on a side-sliding type vehicle door, the speedometer probe is fixedly connected with one end of a bent tube, a straight tube section at the other end of the bent tube is inserted into a sleeve, the straight tube section is in clearance fit with the sleeve and can rotate relative to the sleeve or slide along the axial direction of the sleeve, a fastening bolt capable of enabling the straight tube section and the sleeve to be relatively fixed is arranged on the sleeve, the sleeve is fixedly connected with a second suction disc, the second suction disc can be adsorbed on a front door adjacent to the side-sliding type vehicle door, and the speedometer probe and the two metal needles keep relative positions required for detecting the instantaneous opening and closing speed.
Preferably, the support is bonded with the first suction cup, the speedometer probe is in threaded connection with one end of the elbow, and the sleeve is in threaded connection with the top of the second suction cup.
Preferably, the sound collector is a manual head, the manual head can be directly and electrically connected with the computer through a signal line, the manual head can also be electrically connected with a data acquisition front end through a signal line, and the data acquisition front end is electrically connected with the computer through the signal line. The artificial head is used for collecting sound data, the difference between the artificial head and the actual auditory perception of human ears is basically avoided, accurate sound signal collection can be achieved, and therefore the test result is more accurate.
Preferably, the second sucking disc is vacuum chuck, can provide great adsorption affinity through the mode of evacuation, avoids speedometer probe, return bend, sleeve pipe, second sucking disc to drop from the qianmen.
The invention relates to a method for testing the opening and closing sound quality of a side-sliding type vehicle door, which adopts the test system and comprises the following steps:
firstly, a vehicle to be tested is stopped in a silencing chamber, so that the space at two sides of the vehicle can be safely provided with a test system, and the side-sliding type vehicle door can be normally opened and closed;
secondly, adsorbing a first sucking disc on the side-sliding type vehicle door, adsorbing a second sucking disc on a front door, and adjusting the position of a bent pipe to ensure that a probe of a speedometer and two metal needles keep detecting the relative position required by the instantaneous opening and closing speed of the side-sliding type vehicle door;
thirdly, placing the bracket provided with the sound collector beside the side-sliding type vehicle door, and adjusting the height of the sound collector from the ground and the distance between the sound collector and the side-sliding type vehicle door to enable the relative position of the sound collector and the side-sliding type vehicle door to meet the test requirement;
fourthly, electrically connecting the sound collector with the computer and connecting a power supply; then starting acoustic test data acquisition software of the computer to set corresponding parameters;
fifthly, opening the side-sliding type vehicle door at the speed required by the test, reading and recording the instantaneous opening speed of the side-sliding type vehicle door displayed by the digital speedometer, and simultaneously recording and storing the sound data collected by the sound collector by the computer; closing the side sliding type vehicle door at the speed required by the test, reading and recording the closing instantaneous speed of the side sliding type vehicle door displayed by the digital speedometer, and simultaneously recording and storing the sound data collected by the sound collector by the computer;
and sixthly, analyzing the collected sound data by using data analysis software of the computer to obtain acoustic parameters reflecting the opening and closing sound quality of the side-sliding type vehicle door.
Preferably, the height of the sound collector from the ground is in the range of 1.5m to 1.75m, and the sound collector is 20cm to 50cm in the + X direction and 25cm to 35cm in the Y direction from the outer center of the door handle on the side sliding type door when the side sliding type door is closed.
Preferably, in the case where the sound collector is a dummy head, the height of the dummy head from the ground is 1.715m, and the nose tip of the dummy head is 40cm + X direction and 30cm Y direction from the outer center of the door handle on the side-sliding door when the side-sliding door is closed. The height of the dummy head from the ground and the distance from the side-sliding type door are substantially the same as the position where a person actually opens/closes the side-sliding type door.
The invention has the following effects:
(1) the method comprises the steps that a digital speedometer is used for detecting the opening and closing instantaneous speed of the side-sliding type vehicle door, and acoustic parameters reflecting the opening and closing sound quality of the side-sliding type vehicle door under the condition of different opening and closing instantaneous speeds can be obtained by combining sound data collected by a sound collector and the opening and closing of the side-sliding type vehicle door, and acoustic parameters reflecting the opening and closing sound quality of the side-sliding type vehicle door under the condition of the same opening and closing instantaneous speed can also be obtained; the acoustic parameter test of different opening and closing instantaneous speeds and the opening and closing of the same side-sliding type vehicle door is carried out, and the influence of the opening and closing instantaneous speeds on the opening and closing sound quality of the side-sliding type vehicle door can be analyzed; the acoustic parameter tests of the same opening and closing instantaneous speed and different opening and closing of the side-sliding type vehicle doors are carried out, the opening and closing acoustic quality of the side-sliding type vehicle doors of different materials and types can be obtained, and a guidance basis is provided for the product development of the side-sliding type vehicle doors.
(2) The digital speedometer is positioned by matching the L-shaped bent pipe, the sleeve, the first sucker and the second sucker, and has the advantages of simple and reliable structure and convenience in disassembly and assembly.
Drawings
FIG. 1 is a schematic structural diagram of the present invention during testing.
Fig. 2 is a schematic structural view of the door opening/closing trigger device.
Fig. 3 is a schematic view showing the installation of the door opening/closing trigger device to the door.
Fig. 4 is a loudness curve of a side-sliding door of a certain vehicle type during a test time of a certain closing operation.
Fig. 5 is a graph of the sharpness of a side-sliding door of a certain vehicle type during a test time of a certain closing operation.
Fig. 6 is an FFT graph of sound data of a side-sliding door of a certain vehicle type during a test time of a certain closing operation.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The system for testing the quality of the opening and closing sound of the side-sliding type vehicle door shown in fig. 1 to 3 comprises a vehicle door opening and closing trigger device, a sound collector, a height-adjustable bracket 7, a data acquisition front end and a computer 8. The sound collection station is artificial head 6, and support 7 is the tripod, and artificial head 6 is installed on the tripod through the bottom screw hole and is located the required position of test, and artificial head 6 passes through the signal line and is connected with data acquisition front end electricity, and the data acquisition front end passes through the signal line and is connected with computer 8 electricity (in addition, artificial head 6 also can be directly be connected with computer 8 electricity through the signal line). The vehicle door opening and closing trigger device comprises a digital speedometer 1, an L-shaped bent pipe 2, a sleeve 3, a first sucking disc 4 and a second sucking disc 5; the second sucker 5 is a vacuum sucker, and is provided with a vacuumizing assembly and can be manually vacuumized; the digital speedometer 1 (a purchasable product in the prior art) comprises a support 11, two metal needles 12 and a speedometer probe 13 with a speed display function, wherein the support 11 is adhered to the top of a first suction disc 4, the two metal needles 12 are arranged on the support 11 in parallel and are vertical to the disc surface of the first suction disc 4, air in the first suction disc 4 is extruded to enable the first suction disc 4 to be adsorbed on a side-sliding type vehicle door 9, the speedometer probe 13 is connected with one end of an elbow pipe 2 through threads, a straight pipe section at the other end of the elbow pipe 2 is inserted in a sleeve 3, the straight pipe section is in clearance fit with the sleeve 3 and can rotate relative to the sleeve 3 or slide along the axial direction of the sleeve 3, a fastening bolt 31 which can enable the straight pipe section to be fixed relative to the sleeve 3 is arranged on the sleeve 3, the sleeve 3 is connected with the top of a second suction disc 5 through threads, air in the second suction disc 5, negative air pressure is generated in the second suction cup 5, so that a large suction force can be provided and the second suction cup is sucked on a front door 10 adjacent to the side sliding type vehicle door 9, and a speedometer probe 13 and two metal needles 12 keep relative positions required for detecting the opening and closing instantaneous speed of the side sliding type vehicle door.
The method for testing the opening and closing sound quality of the sideslip type vehicle door by adopting the testing system comprises the following steps:
firstly, a vehicle to be tested is stopped in a silencing chamber, so that the space on two sides of the vehicle can be safely used for placing a test system, and the side-sliding type vehicle door can be normally opened and closed.
And secondly, adsorbing the first suction disc 4 on the side sliding type vehicle door 9, adsorbing the second suction disc 5 on the front door 10, adjusting the position of the elbow pipe 2 (namely adjusting the angle of the elbow pipe 2 and the length of the straight pipe section of the elbow pipe inserted in the sleeve 3), keeping the speedometer probe 13 basically vertical to the ground and the disc surface of the first suction disc 4, keeping the speedometer probe 13 and the two metal needles 12 at relative positions required for detecting the opening and closing instantaneous speed of the side sliding type vehicle door, namely when the side sliding type vehicle door 9 is opened/closed, enabling the two metal needles 12 to pass through the U-shaped groove of the speedometer probe 13 and not collide with the U-shaped groove, and enabling the speedometer probe 13 to acquire the opening instantaneous speed and the closing instantaneous speed of the side sliding type vehicle door and normally display the opening instantaneous speed and the closing speed.
And thirdly, placing the bracket 7 provided with the artificial head 6 beside the side sliding type vehicle door 9 to ensure that the height of the artificial head 6 from the ground is 1.715m, wherein the distance between the nose tip of the artificial head 6 and the center of the outer side of a door handle on the side sliding type vehicle door 9 when the side sliding type vehicle door 9 is closed is 40cm in the X direction and 30cm in the Y direction, and the relative position of the artificial head 6 and the side sliding type vehicle door 9 meets the test requirement.
Fourthly, electrically connecting the artificial head 6 with a data acquisition front end through a signal wire, electrically connecting the data acquisition front end with a computer 8 through the signal wire, and connecting a power supply; then, the acoustic test data acquisition software of the computer 8 is started, and the sound sampling frequency bandwidth, the frequency resolution, the tracking mode and the sampling time (corresponding to the test time) are set.
Fifthly, opening the side sliding type vehicle door 9 at a speed required by the test (if the side sliding type vehicle door 9 is a manual opening and closing sliding door, a tester needs to push the side sliding type vehicle door 9 by hands to completely open the side sliding type vehicle door 9; if the side sliding type vehicle door 9 is an electric opening and closing sliding door, the side sliding type vehicle door 9 is automatically opened only by lightly triggering an opening switch), reading and recording the opening instantaneous speed of the side sliding type vehicle door 9 displayed by the digital speedometer 1, and simultaneously recording and storing the sound data acquired by the manual head 6 by the computer 8; the side sliding type vehicle door 9 is closed at the speed required by the test (if the side sliding type vehicle door 9 is a manual opening and closing sliding door, a tester needs to pull the side sliding type vehicle door 9 by hands to completely close the side sliding type vehicle door 9, if the side sliding type vehicle door 9 is an electric opening and closing sliding door, a door closing switch is only needed to be triggered lightly, and the side sliding type vehicle door 9 is closed automatically), the closing instantaneous speed of the side sliding type vehicle door 9 displayed by the digital speedometer 1 is read and recorded, and meanwhile, the computer 8 records and stores the sound data collected by the manual head 6.
Sixthly, analyzing the collected sound data by using data analysis software of the computer 8 to obtain acoustic parameters (such as instantaneous loudness and instantaneous sharpness when the side-sliding vehicle door is opened, instantaneous loudness and instantaneous sharpness when the side-sliding vehicle door is closed, distribution of sound energy, energy attenuation process and the like) reflecting the opening and closing sound quality of the side-sliding vehicle door 9.
And seventhly, corresponding the acoustic parameters when the side sliding type vehicle door 9 is opened to the instantaneous opening speed of the side sliding type vehicle door 9, and corresponding the acoustic parameters when the side sliding type vehicle door 9 is closed to the instantaneous closing speed of the side sliding type vehicle door 9 to obtain a test data table, so as to provide a guidance basis for the product development of the side sliding type vehicle door.
The voice data collected by the artificial head 6 is played back, subjective evaluation can be performed, multiple persons can conveniently perform evaluation without time and place limitation, and the working efficiency and the result accuracy are improved; the sound data collected by the artificial head 6 is subjected to objective index analysis to obtain sound quality parameters such as instantaneous loudness and instantaneous sharpness, so that the sound quality level of opening and closing of the side-sliding type vehicle door can be quantified, and meanwhile, the correctness of subjective evaluation can be assisted.
The loudness is reflected by a subjective feeling of a person on the sound intensity, the change condition of a loudness curve in the test time is checked, and the instantaneous loudness when the side-sliding type vehicle door is opened/closed is recorded. The greater the loudness value, the greater the subjective loudness. The maximum loudness value on the loudness curve is recorded, which is the instantaneous loudness when the side-sliding door is opened/closed. As can be seen from the loudness curve shown in fig. 4, the instantaneous loudness of a certain closing operation of the side-sliding door of this vehicle type is about 22 tones.
The sharpness describes the sharpness of the sound, the change of the sharpness curve in the test time is checked, and the instantaneous sharpness of the opening/closing of the side sliding type vehicle door is recorded. The greater the sharpness value, the sharper the subjectively perceived sound. And recording the sharpness corresponding to the same moment as the instant loudness moment on the sharpness curve, wherein the sharpness is the instant sharpness when the side-sliding type vehicle door is opened/closed. As can be seen from the sharpness curve shown in fig. 5, the instantaneous sharpness of a certain closing operation of the side-sliding door of this vehicle type is about 2.25 acum.
The acquired sound data is subjected to FFT conversion by data analysis software of the computer 8 to obtain an FFT image thereof. The FFT plot describes the distribution of sound energy and the energy decay process, with longer decay duration giving longer lasting sound (see fig. 6).
In the above test process, if the speed required for the test is the minimum opening/closing side-sliding door speed, the operation of opening/closing the side-sliding door 9 for a plurality of times is required, the opening/closing instantaneous speeds of the plurality of side-sliding doors 9 are read and recorded, and the minimum opening instantaneous speed and the minimum closing instantaneous speed are found from the plurality of opening/closing instantaneous speeds; then opening the side sliding type vehicle door 9 at the minimum opening instantaneous speed, reading and recording the opening instantaneous speed of the side sliding type vehicle door 9 displayed by the digital speedometer 1, and simultaneously recording and storing the sound data acquired by the manual head 6 by the computer 8; then the side sliding type vehicle door 9 is closed at the minimum closing instantaneous speed, the closing instantaneous speed of the side sliding type vehicle door 9 displayed by the digital speedometer 1 is read and recorded, and meanwhile, the computer 8 records and stores the sound data collected by the manual head 6.
Claims (8)
1. A test system for the quality of opening and closing sound of a side-sliding type vehicle door comprises a vehicle door opening and closing trigger device, a sound collector, a height-adjustable support (7) and a computer (8), wherein the sound collector is arranged on the support (7) and is positioned at a position required by a test, and the sound collector is electrically connected with the computer (8); the method is characterized in that: the vehicle door opening and closing triggering device comprises a digital speedometer (1), an L-shaped bent pipe (2), a sleeve (3), a first sucking disc (4) and a second sucking disc (5); the digital speedometer (1) comprises a support (11), two metal needles (12) and a speedometer probe (13) with a speed display function, wherein the support (11) is fixedly connected with a first sucker (4), the two metal needles (12) are arranged on the support in parallel, the first sucker (4) can be adsorbed on a side-sliding type vehicle door (9), the speedometer probe (13) is fixedly connected with one end of a bent pipe (2), a straight pipe section at the other end of the bent pipe (2) is inserted into a sleeve (3), the straight pipe section is in clearance fit with the sleeve (3) and can rotate relative to the sleeve (3) or slide along the axial direction of the sleeve (3), a fastening bolt (31) which can enable the straight pipe section and the sleeve (3) to be relatively fixed is arranged on the sleeve (3), the sleeve (3) is fixedly connected with a second sucker (5), the second sucker (5) can be adsorbed on a front door (10) adjacent to the side-sliding type vehicle door (9), the speedometer probe (13) and the two metal needles (12) keep the relative position required for detecting the opening and closing instantaneous speed of the side-sliding type vehicle door.
2. The system for testing the opening and closing sound quality of a side-sliding vehicle door according to claim 1, wherein: support (11) and first sucking disc (4) bond, threaded connection is passed through with the one end of return bend (2) in speedometer probe (13), threaded connection is passed through with the top of second sucking disc (5) in sleeve pipe (3).
3. The system for testing the quality of opening and closing sound of a side-sliding door according to claim 1 or 2, wherein: the sound collector is an artificial head (6) which is directly and electrically connected with a computer (8) through a signal line.
4. The system for testing the quality of opening and closing sound of a side-sliding door according to claim 1 or 2, wherein: the sound collector is a man-made head (6) which is electrically connected with a data collection front end through a signal line, and the data collection front end is electrically connected with a computer (8) through the signal line.
5. The system for testing the quality of opening and closing sound of a side-sliding vehicle door according to any one of claims 1 to 4, wherein: the second sucker (5) is a vacuum sucker.
6. A method for testing the quality of opening and closing sound of a side-sliding type vehicle door, which uses the test system according to any one of claims 1 to 5, comprising:
firstly, a vehicle to be tested is stopped in a silencing chamber, so that the space at two sides of the vehicle can be safely provided with a test system, and the side-sliding type vehicle door can be normally opened and closed;
secondly, adsorbing a first sucking disc (4) on a side-sliding type vehicle door (9), adsorbing a second sucking disc (5) on a front door (10), and adjusting the position of a bent pipe (2) to ensure that a speedometer probe (13) and two metal needles (12) keep the relative position required for detecting the opening and closing instantaneous speed of the side-sliding type vehicle door;
thirdly, placing a bracket (7) provided with a sound collector beside the side-sliding type vehicle door, and adjusting the height of the sound collector from the ground and the distance between the sound collector and the side-sliding type vehicle door to enable the relative position of the sound collector and the side-sliding type vehicle door (9) to meet the test requirement;
fourthly, electrically connecting the sound collector with the computer and connecting a power supply; then starting acoustic test data acquisition software of the computer to set corresponding parameters;
fifthly, opening the side-sliding type vehicle door at the speed required by the test, reading and recording the instantaneous opening speed of the side-sliding type vehicle door displayed by the digital speedometer, and simultaneously recording and storing the sound data collected by the sound collector by the computer; closing the side sliding type vehicle door at the speed required by the test, reading and recording the closing instantaneous speed of the side sliding type vehicle door displayed by the digital speedometer, and simultaneously recording and storing the sound data collected by the sound collector by the computer;
and sixthly, analyzing the collected sound data by using data analysis software of the computer to obtain acoustic parameters reflecting the opening and closing sound quality of the side-sliding type vehicle door.
7. The method for testing the quality of the opening and closing sound of the side-sliding vehicle door according to claim 6, wherein: the height of the sound collector from the ground is within the range of 1.5-1.75 m, and the distance between the sound collector and the outer side center of a door handle on the side sliding type vehicle door is 20-50 cm in the X direction and 25-35 cm in the Y direction when the side sliding type vehicle door is closed.
8. The method for testing the quality of the opening and closing sound of the side-sliding vehicle door according to claim 6 or 7, wherein: when the sound collector is an artificial head (6), the height of the artificial head (6) from the ground is 1.715m, and the distance between the nose tip of the artificial head (6) and the outer side center of a door handle on the side-sliding type vehicle door is 40cm in the X direction and 30cm in the Y direction when the side-sliding type vehicle door is closed.
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| DE102020110137A1 (en) | 2020-04-14 | 2021-10-14 | Bayerische Motoren Werke Aktiengesellschaft | Method for the automatic parameterization of an electrically movable component of a vehicle |
| CN112326261A (en) * | 2020-10-23 | 2021-02-05 | 安徽江淮汽车集团股份有限公司 | Automobile door closing sound quality checking method |
| CN113418722A (en) * | 2021-06-30 | 2021-09-21 | 一汽奔腾轿车有限公司 | Automobile sliding door opening and closing speed test rack and test method |
| CN113418722B (en) * | 2021-06-30 | 2023-04-07 | 一汽奔腾轿车有限公司 | Automobile sliding door opening and closing speed test rack and test method |
| CN113932913A (en) * | 2021-09-02 | 2022-01-14 | 东风汽车集团股份有限公司 | Mute auxiliary testing device and door closing sound quality testing method |
| CN113932913B (en) * | 2021-09-02 | 2024-10-18 | 东风汽车集团股份有限公司 | Mute auxiliary testing device and door closing sound quality testing method |
| CN114414263A (en) * | 2022-01-25 | 2022-04-29 | 华晨鑫源重庆汽车有限公司 | Device for measuring closing speed of sliding door and method for testing minimum closing speed |
| CN114414263B (en) * | 2022-01-25 | 2024-02-20 | 鑫源汽车有限公司 | Sliding door closing speed measuring device and minimum closing speed testing method |
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