CN112985824B - Oil shaking test bed and oil shaking test method - Google Patents
Oil shaking test bed and oil shaking test method Download PDFInfo
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- CN112985824B CN112985824B CN201911312496.5A CN201911312496A CN112985824B CN 112985824 B CN112985824 B CN 112985824B CN 201911312496 A CN201911312496 A CN 201911312496A CN 112985824 B CN112985824 B CN 112985824B
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- 238000012360 testing method Methods 0.000 title claims abstract description 202
- 238000010998 test method Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses an oil shaking test bed and an oil shaking test method, which can simulate the working condition of a fuel tank in a real vehicle, the oil state of the fuel tank during shaking and the like, and can ensure to be consistent with the working condition of installing a future test fuel tank on the vehicle, thereby improving the accuracy of test results. The oil liquid shaking test bed comprises a test vehicle, an oil tank fixing rack, a data acquisition device, a test oil tank and a sensor; the oil tank fixing rack is arranged in the test vehicle and fixedly connected with the test vehicle, the test oil tank is fixedly connected with the oil tank fixing rack, the sensor is arranged at the preset key point of the oil liquid shaking test rack, and the data acquisition device is connected with the sensor and is connected with a vehicle-mounted bus interface of the test vehicle.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to an oil shaking test bed and an oil shaking test method.
Background
When the automobile is driven under the working conditions of braking, turning, and the like, oil sloshing noise can be caused due to the change of the speed of the automobile. The main reasons for the oil shaking noise include that the noise generated when the oil in the oil tank shakes is transmitted into the vehicle through air sound; when the oil in the oil tank shakes, vibration is generated, and the vibration is transmitted to the radiation noise of the vehicle body through the contact position of the oil tank and the vehicle body. The current method capable of effectively solving the vibration and sound is to optimize the design of the wave plate in the fuel tank, and the effect of the wave plate design needs to be tested and verified, so that the direction is provided for subsequent optimization. In the early stage of project development, experiments are required to verify the effect of the wave protection plate.
Traditionally, the design is generally based on a test bench, but the test bench is matched with a sound-deadening chamber and an additional independent power mechanism, wherein the construction cost of the sound-deadening chamber is high; the oil liquid is given to shake through the power mechanism to need initial speed, but vibration noise brought by the power mechanism is difficult to eliminate, and accuracy of test results is affected. In addition, some test stands are provided with inclined surfaces, and oil sloshing is given to the oil liquid through the inclined surfaces to require initial speed, but the oil tank is inclined, so that the initial posture of the oil tank is different from that of an actual horizontal road surface, and the test result is inaccurate.
Disclosure of Invention
The invention provides an oil shaking test bed and an oil shaking test method, which are used for solving the problem that the test bed in the background technology influences inaccurate test results of oil shaking.
The invention provides an oil shaking test bed, which comprises a test vehicle, an oil tank fixing rack, a data acquisition device, a test oil tank and a sensor, wherein the test vehicle is arranged on the oil tank fixing rack;
the oil tank fixing rack is arranged in the test vehicle and fixedly connected with the test vehicle, the test oil tank is fixedly connected with the oil tank fixing rack, the sensor is arranged at a preset key point of the oil liquid shaking test bed, and the data acquisition device is connected with the sensor and is connected with a vehicle-mounted bus interface of the test vehicle.
Optionally, the data acquisition device is further connected with a CAN interface of the test vehicle.
Optionally, the oil tank fixed rack includes rack base and rack body, be equipped with the oil tank link on the rack body, wherein, the rack base with the rack body is connected, experimental oil tank with the oil tank link on the rack body is connected.
Optionally, the fixed rack of oil tank still includes the bandage, two frames that the rack body top is relative respectively distribute have the oil tank link, the middle part of bandage with the laminating of the lower surface of experimental oil tank, the both ends of bandage respectively with two frames that the rack body top is relative the oil tank link is connected.
Optionally, be equipped with the diaphragm on the stage body, the both ends of diaphragm respectively with two frames that the stage body top is relative are connected, the diaphragm is toward experimental oil tank direction extends the oil tank butt end, the oil tank butt end with the top butt of being tested oil tank.
Optionally, two ends of the binding belt are respectively connected with the oil tank connecting ends of two frames above the rack body in a bolt way.
Optionally, the oil sloshing test bed further comprises a braking speed reducer, and the braking speed reducer is connected with a brake and accelerator pedal of the test vehicle.
Optionally, the oil tank fixing rack is located on a passenger cabin bottom plate of the test vehicle, and the rack base of the oil tank fixing rack is fixedly connected with the test vehicle through a base mounting hole of the passenger cabin bottom plate.
The second aspect of the present invention provides a method for testing oil sloshing, which is based on the oil sloshing test stand according to any one of the first aspect, and the method for testing oil sloshing includes:
when the test vehicle runs to provide speed for the test oil tank, test data acquired by the data acquisition device are acquired, wherein the test data comprise sensor data and vehicle-mounted information, the sensor data are data detected by the sensors arranged on the oil shaking test table, and the vehicle-mounted information is information acquired by the data acquisition device from a vehicle-mounted bus interface of the test vehicle;
and carrying out test analysis on the shaking noise of the test oil tank according to the test data.
In one scheme of the oil shaking test bed provided by the invention, the test bed comprises a test vehicle, an oil tank fixing rack, a data acquisition device, a test oil tank and a sensor; the oil tank fixing rack is placed in the test vehicle and fixedly connected with the test vehicle, the test oil tank is fixedly connected with the oil tank fixing rack, the sensor is arranged at the preset key point position of the oil liquid shaking test rack, and the sensor is connected with the data acquisition device. Like this, because test oil tank and oil tank fixed bed fixed connection, and the oil tank fixed bed place in the test vehicle and with test vehicle fixed connection can give the condition that test oil tank rocked through the control test vehicle, for example test oil tank rocked's initial velocity need not extra laboratory and also need not to utilize and give test oil tank initial velocity through the slope test oil tank, can simulate the fuel tank in the operating condition of real car, the fuel tank gesture etc. when rocking, can ensure to install the operating mode unanimity on the car with future test oil tank to improve test result's accuracy.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a structure of an oil sloshing test bed according to an embodiment of the present invention;
FIG. 2 is a schematic view of a structure of an oil tank fixing rack according to an embodiment of the present invention;
FIG. 3 is a schematic view of a test oil tank according to an embodiment of the present invention;
FIG. 4 is a schematic view of a test vehicle according to an embodiment of the present invention;
FIG. 5 is a schematic view of another structure of the oil sloshing test bed according to the embodiment of the present invention;
FIG. 6 is a schematic flow chart of a method for testing oil sloshing in an embodiment of the present invention.
Wherein, each reference sign is as follows:
1-oil shaking test bed and 11-test vehicle; 111-passenger compartment floor; 12-an oil tank fixing rack; 121-a gantry base; 122-a rack body; 1221-tank connection; 123-tie; 124-cross bar; 1241-a tank abutment; 13-test tank.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Example 1
The embodiment 1 of the invention provides an oil shaking test bed 1, wherein the oil shaking test bed 1 comprises a test vehicle 11, an oil tank fixing rack 12, a test oil tank 13, a data acquisition device (not shown in the figure) and a sensor (not shown in the figure);
the oil tank fixing rack 12 is arranged in the test vehicle 11 and is fixedly connected with the test vehicle 11, the test oil tank 13 is fixedly connected with the oil tank fixing rack 12, the sensor is arranged at a preset key point of the oil liquid shaking test rack 1, and the sensor is connected with the data acquisition device. The data acquisition device is also connected with a CAN bus interface on the test vehicle 11 and used for acquiring relevant vehicle-mounted information during a test, and the sensor arranged on the oil shaking test stand 1 CAN acquire relevant vehicle-mounted information such as the speed, the braking time and the like on the test vehicle 11 through the CAN bus interface.
Thus, because the test oil tank 13 is fixedly connected with the oil tank fixing rack 12, and the oil tank fixing rack 12 is arranged in the test vehicle 11 and fixedly connected with the test vehicle 11, the test oil tank 13 can be given a shaking condition, such as an initial shaking speed, by controlling the test vehicle 11, through the test vehicle 11, the test oil tank 13 can be provided with a brake braking system, a required test condition is created by manually operating a brake pedal, an additional laboratory is not required, the initial shaking speed of the test oil tank 13 is not required by inclining the test oil tank 13, the working condition of the fuel tank in a real vehicle, the fuel tank posture during shaking and the like can be simulated, and the consistency with the working condition of the test oil tank 13 mounted on the vehicle in the future can be ensured, so that the accuracy of test results is improved.
It should be noted that, in order to meet the test requirement of oil shaking, a sensor may be disposed at a preset key point, and it may be understood that, in order to meet different test requirements, required data needs to be correspondingly acquired, and in order to obtain acceleration data of the body of the test oil tank 13, an acceleration sensor of the body of the oil tank may be disposed on the body of the test oil tank 13; for example, in order to obtain the pressure change in the oil tank when the oil shakes, a pressure sensor or the like may be disposed in the test oil tank 13, that is, various required sensors may be disposed at a predetermined key point position of the oil shake test stand 1, for example, a microphone sensor or the like may be disposed, which is not limited thereto.
Optionally, the tank fixing rack 12 includes a rack base 121 and a rack body 122, and the rack body is provided with a tank connecting end 1221, where the rack base 121 is connected with the rack body 122, and the test tank 13 is connected with the tank connecting end 1221 on the rack body 122. In practical application, in order to better stabilize the test fuel tank 13 and make the test result accurate, two or more fuel tank connecting ends 1221 may be provided for connection with the test fuel tank 13.
Optionally, the tank fixing rack further includes a binding band 123, two frames opposite to each other above the rack body 122 are respectively distributed with the tank connecting end 1221, the middle part of the binding band 123 is attached to the lower surface of the test tank 13, and two ends of the binding band 123 are respectively connected with the tank connecting ends 1221 of two frames opposite to each other above the rack body 122. In this embodiment, the binding band 123 is attached from below the test oil tank 13 and is fixed to the oil tank connecting end 1221 above the test oil tank 13, so that the test oil tank 13 is further better fixed on the stand 122, and due to the deformability of the binding band, the shaking condition of the oil tank during the running of the test vehicle 11 can be simulated, and the test accuracy is improved.
Optionally, two ends of the strap 123 are respectively bolted to the tank connecting ends 1221 of two frames above the stand 122. In this embodiment, the strap 123 is secured at both ends to the tank attachment end 1221 by bolting. Of course, as a modification, the two ends of the strap 123 may be fixedly connected to the tank connection ends of the two ends of the cross bar 1231 by spot welding, and the present invention is not limited thereto.
Optionally, a cross bar 124 is disposed on the stand body, two ends of the cross bar 124 are respectively connected with two opposite frames above the stand body 122, the cross bar 124 extends toward the direction of the test oil tank 13 to form an oil tank abutting end 1241, and the oil tank abutting end 1241 abuts against the upper side of the tested oil tank 13. It will be appreciated that the surface of the oil tank is generally uneven, not a complete plane, when the oil tank is fixed on an actual vehicle, the upper surface of the oil tank will abut against the actual vehicle, in order to simulate this situation, in the embodiment of the present invention, the rack body is provided with the cross bar 124, two ends of the cross bar 124 are respectively connected with two frames opposite to the upper side of the rack body 122, the oil tank abutting end 1241 extends from the cross bar 124 toward the direction of the test oil tank 13, and the oil tank abutting end 1241 abuts against the upper side of the tested oil tank 13, so as to simulate the abutting situation of the actual oil tank and the vehicle, so that the actually measured related data has a reference value, and the test accuracy is improved.
Alternatively, the tank fixing stand 12 is located at a passenger compartment floor 111 of the test vehicle 11, and the stand base 121 of the tank fixing stand 12 is fixedly connected with the test vehicle through a base mounting hole of the passenger compartment floor 111. By disassembling the rear seat on the test vehicle 11 so that the test vehicle 11 flows out of the passenger compartment floor 111, it will be appreciated that typically the passenger compartment floor 111 has some mounting holes, and in the embodiment of the present invention, the tank fixing stand 12 is located on the passenger compartment floor 111 through the floor mounting holes on the passenger compartment, and the stand base 121 of the tank fixing stand 12 and the base mounting holes of the passenger compartment floor 111 may be fixed by bolts or the like, so that the tank fixing stand 12 is fixed on the test vehicle, so that the test vehicle 11 serves as a carrier for the tank fixing stand 12 and the test tank 14. The test stand is fixed by the seat mounting hole of the test vehicle 11, and other uses of the test vehicle 11 are not affected after the test is completed.
Optionally, the bench base 121 includes a bottom plate and a cross bar stiffener, where the cross bar stiffener is disposed on the bottom plate at intervals. It will be appreciated that the provision of the reinforcing ribs on the platform base 121 of the tank fixing platform 12 may make the tank fixing platform 12 more stable and less prone to damage.
Optionally, the oil sloshing test stand 1 further includes a brake reduction device (not shown in the figure), and the brake reduction device is connected with a brake and accelerator pedal of the test vehicle 11. It should be noted that, the brake reduction device 16 is different from the brake making system/device on the test vehicle 11, and the brake reduction device 16 is a brake reduction device separately provided, and when the oil shake test is performed, the above brake reduction device can be used to replace manual to perform a simulated brake operation, so that the test process is more convenient. Of course, as a modification, braking or braking may be performed directly by hand, and the embodiment of the present invention is not limited.
Example 2:
in the embodiment 1, the oil sloshing test stand 1 provided by the present invention is described, and in the embodiment 2, based on the oil sloshing test stand 1, a method for testing oil sloshing is correspondingly provided, as shown in fig. 6, and includes the following steps:
s10: when the test vehicle 11 runs to provide a speed for the test oil tank 13, test data acquired by the data acquisition device are acquired, wherein the test data comprise sensor data, and the sensor data are data detected by the sensors arranged on the oil shaking test bed;
s20: and carrying out test analysis on the shaking noise of the test oil tank 13 according to the test data.
For step S10, when a test is required, the oil shaking test stand 1 as described in embodiment 1 may be set up, including arranging various sensors, etc., and it may be understood that the test vehicle 11 itself is utilized to absorb and insulate sound, reduce vibration, etc., without using semi-anechoic room resources, so as to reduce test cost and improve accuracy of test data. And the data acquisition device is connected with debugging equipment (such as a computer), so that the debugging equipment is convenient to debug, and the debugging equipment can acquire test data acquired by the data acquisition device. The test data comprise sensor data, and in an optional embodiment, the data acquisition device is further connected with a vehicle-mounted bus interface of the test vehicle and used for acquiring relevant vehicle-mounted information such as initial speed of the test vehicle in the running process of the test vehicle. In addition, various running conditions of the vehicle can be simulated manually or by utilizing an independent braking and decelerating device, and the embodiment of the invention is not limited, so that the actual running condition of the vehicle is reflected, and a large amount of test data is obtained, so that the subsequent test analysis can be performed. When the test is performed, a user can simulate the shaking condition of the actual vehicle running test oil tank 14, for example, a certain initial speed is given to the test oil tank 14 through the test vehicle 11, at this time, the corresponding sensor data can be obtained by the sensors arranged on the oil shaking test stand 1, and for the debugging equipment, the sensor data and/or the vehicle-mounted information read by the data acquisition device 13 can be obtained.
In step S20, after the test data acquired by each sensor are acquired, the test analysis may be performed on the sloshing noise of the test tank 14 according to the test data. That is, according to the test method, the simulation test can be performed according to the test condition requirements, such as the vehicle speed, the fuel amount of the fuel tank, the running condition of the vehicle and the like, and finally the test data analysis is performed, so that the test result is more accurate.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (6)
1. The oil shaking test bed is characterized by comprising a test vehicle, an oil tank fixing rack, a data acquisition device, a test oil tank and a sensor;
the oil tank fixing rack is arranged in the test vehicle and is fixedly connected with the test vehicle, the test oil tank is fixedly connected with the oil tank fixing rack, the sensor is arranged at a preset key point of the oil shaking test bed, the data acquisition device is connected with the sensor, and a vehicle-mounted bus interface of the test vehicle is connected;
the oil tank fixing rack comprises a rack base and a rack body, wherein the rack body comprises a containing area formed by frame strips, the upper frame strip of the rack body is provided with an oil tank connecting end, the rack base is connected with the rack body, and the test oil tank is positioned in the containing area and connected with the oil tank connecting end of the upper frame strip of the rack body;
the oil tank fixing rack further comprises binding bands, the oil tank connecting ends are respectively distributed on two opposite frames above the rack body, the middle parts of the binding bands are attached to the lower surface of the test oil tank, and two ends of the binding bands are respectively connected with the oil tank connecting ends of the two opposite frames above the rack body;
the test oil tank is characterized in that a transverse bar is arranged on the rack body, two ends of the transverse bar are respectively connected with two opposite frames above the rack body, the transverse bar extends out of an oil tank abutting end towards the direction of the test oil tank, and the oil tank abutting end abuts against the upper part of the test oil tank.
2. The oil shaking test stand according to claim 1, wherein both ends of the binding band are respectively connected with the oil tank connecting ends of two frames above the stand body in a bolt manner.
3. The oil sloshing test stand of any one of claims 1-2, further comprising a brake reduction device connected to the test vehicle brake and accelerator pedal.
4. The oil sloshing test stand according to any one of claims 1-2, wherein the oil tank fixing stand is located at a passenger compartment floor of the test vehicle, and the stand base of the oil tank fixing stand is fixedly connected to the test vehicle through a base mounting hole of the passenger compartment floor.
5. The oil sloshing test bench of any one of claims 1-2, wherein the bench base includes a bottom plate and cross bar reinforcing ribs, wherein the cross bar reinforcing ribs are provided on the bottom plate at intervals.
6. A method for testing oil sloshing, wherein the method for testing oil sloshing is based on the oil sloshing test stand according to any one of claims 1 to 5, and the method for testing oil sloshing comprises:
when the test vehicle runs to provide speed for the test oil tank, test data acquired by the data acquisition device are acquired, wherein the test data comprise sensor data and vehicle-mounted information, the sensor data are data detected by the sensors arranged on the oil shaking test table, and the vehicle-mounted information is information acquired by the data acquisition device from a vehicle-mounted bus interface of the test vehicle;
and carrying out test analysis on the shaking noise of the test oil tank according to the test data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911312496.5A CN112985824B (en) | 2019-12-18 | 2019-12-18 | Oil shaking test bed and oil shaking test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911312496.5A CN112985824B (en) | 2019-12-18 | 2019-12-18 | Oil shaking test bed and oil shaking test method |
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| CN112985824A CN112985824A (en) | 2021-06-18 |
| CN112985824B true CN112985824B (en) | 2024-03-15 |
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| KR101121780B1 (en) * | 2010-10-29 | 2012-03-22 | 주식회사화신 | Measuring device for fuel sloshing noise of fuel tank and control method thereof |
| CN103454056A (en) * | 2013-09-05 | 2013-12-18 | 亚普汽车部件股份有限公司 | Simulation brake test table for testing noise of fuel tank |
| CN107588916A (en) * | 2017-08-08 | 2018-01-16 | 扬州大学 | Fuel tank noise testing drives testing stand |
| CN109459128A (en) * | 2018-09-27 | 2019-03-12 | 上海理工大学 | A kind of fuel tank of vehicle oil liquid whine noise test macro |
| 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 |
| CN209372220U (en) * | 2019-02-21 | 2019-09-10 | 上海汽车集团股份有限公司 | A kind of automobile fuel tank fuel oil whine noise test car |
-
2019
- 2019-12-18 CN CN201911312496.5A patent/CN112985824B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101121780B1 (en) * | 2010-10-29 | 2012-03-22 | 주식회사화신 | Measuring device for fuel sloshing noise of fuel tank and control method thereof |
| CN103454056A (en) * | 2013-09-05 | 2013-12-18 | 亚普汽车部件股份有限公司 | Simulation brake test table for testing noise of fuel tank |
| CN107588916A (en) * | 2017-08-08 | 2018-01-16 | 扬州大学 | Fuel tank noise testing drives testing stand |
| CN109459128A (en) * | 2018-09-27 | 2019-03-12 | 上海理工大学 | A kind of fuel tank of vehicle oil liquid whine noise test macro |
| CN209372220U (en) * | 2019-02-21 | 2019-09-10 | 上海汽车集团股份有限公司 | A kind of automobile fuel tank fuel oil whine noise test car |
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| CN112985824A (en) | 2021-06-18 |
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