CN214748880U - Noise test device of automobile running with higher speed - Google Patents
Noise test device of automobile running with higher speed Download PDFInfo
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- CN214748880U CN214748880U CN202120384889.3U CN202120384889U CN214748880U CN 214748880 U CN214748880 U CN 214748880U CN 202120384889 U CN202120384889 U CN 202120384889U CN 214748880 U CN214748880 U CN 214748880U
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- 238000012360 testing method Methods 0.000 title claims abstract description 137
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 230000001133 acceleration Effects 0.000 claims description 21
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 13
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a noise test device of car of traveling with higher speed relates to car noise measurement technical field with higher speed. The method comprises the following steps: testing reflectors at different positions in the testing area; the photoelectric sensor is arranged at the front part of the vehicle to be tested through the sensor bracket and is used for receiving the optical signal of the test reflector; and the buzzer in the vehicle is used for receiving the optical signal processed by the photoelectric sensor and prompting whether the data in the noise test outside the accelerated running vehicle of the vehicle is valid or not. The utility model discloses can help test personnel and driver to judge that the car accelerates the test of going the outer noise test of car with higher speed point, finishing point, and the vehicle traveles the position at experimental road. And further judging the validity of the test data. The utility model discloses a vehicle position judgment method that provides can improve security, accuracy and the test efficiency that the car accelerated traveling car external noise was experimental.
Description
Technical Field
The utility model relates to an automobile road is experimental and car noise measurement technical field with higher speed especially relates to the noise test device who traveles the car with higher speed.
Background
At present, in the national standard of GB1495-2002 external noise limit value and measuring method for accelerated vehicle running, a measuring field and an accelerated vehicle running test area for measuring the accelerated noise of the vehicle are specified, and the specified approaching speed of the vehicle is required to enter the test field.
In the prior art measurement, as shown in fig. 10, the accelerator pedal is quickly stepped to the bottom at the AA 'line and is kept unchanged until the tail end of the vehicle passes the BB' line, and the accelerator pedal is released as soon as possible. The vehicle is accelerated straight through the measuring area, the longitudinal center plane of the vehicle body is as close to the center line CC' as possible.
The judgment of the test acceleration point and the test end point and the straight line passing through the measurement area are related to the success or failure of the test. Sometimes a large number of repeated tests are required to successfully complete the test.
Through the above analysis, the problems and defects of the prior art are as follows:
(1) at present, foreign matters such as wooden sticks are placed at a test acceleration point and an end point in many automobile host factories, the treading and releasing time of an accelerator pedal is judged by vibration abnormal sound generated by rolling tires of a vehicle, and whether the vehicle runs in the middle of a test road is judged according to driving experience.
(2) Because factors such as the height of the vehicle, the power of an engine, the environment of a test site, the body state of a tester in the same day and the like have great influence on the test precision, and meanwhile, the operation of rolling foreign matters also has great driving risk, whether the vehicle is centered when running in a test area still needs to be judged by subjective experience, and different testers possibly have great errors, so that the test safety and the measurement precision cannot be completely ensured. Sometimes, the test needs to be repeated for many times, and averaging is performed after multiple groups of data are obtained, so that the labor hour is greatly consumed, the runway renting time is prolonged, and the vehicle development cost is increased.
The difficulty in solving the above problems and defects is: in the prior art, most technicians visually inspect the vehicle in the vehicle centering judgment process and the like, and human eyes have certain errors in judgment, so that accurate judgment cannot be performed; and the acceleration point of the vehicle is judged to have certain error through the marker, and the driver is distracted in the driving process to influence the safety of the test.
Aiming at different vehicle types, different speeds of incoming lines, outgoing lines and intermediate points are required, the requirement of each test is different, the difficulty of the test lies in how to determine the acceleration points of the vehicle, errors exist in visual inspection, the positions of the acceleration points which are not the next time can not be ensured to be the same, and whether the vehicle is in the middle of a lane or not in the test process can not be judged.
The significance of solving the problems and the defects is as follows: the noise test device of the accelerated running automobile can collect equipment which accelerates passing noise to judge whether the automobile runs in the middle or not and the point that the automobile should fully open the throttle. And the system can assist the acquisition system to judge whether the acquired data meet the test requirements, and assist the driver to confirm the vehicle position and the acceleration point.
SUMMERY OF THE UTILITY MODEL
For overcoming the problem that exists among the correlation technique, the utility model discloses the embodiment provides a noise test device of car of traveling with higher speed, and the test is accelerated some and ending point and lane position judgement device in the noise test outside concretely relates to car of traveling with higher speed.
The technical scheme is as follows: this noise test device of accelerating driving car includes:
testing reflectors at different positions in the testing area;
the photoelectric sensor is arranged at the front part of the vehicle to be tested through the sensor bracket and is used for receiving the optical signal of the test reflector;
and the buzzer in the vehicle is used for receiving the optical signal processed by the photoelectric sensor and prompting whether the data in the noise test outside the accelerated running vehicle of the vehicle is valid or not.
In one embodiment, the test reflector comprises:
the first preparation testing reflector and the second preparation testing reflector are arranged in front of the testing area;
the test light reflecting plate is arranged at an acceleration point of the test area acceleration area;
the test reflector is arranged at the running position of the test area;
an end point test reflector disposed at the end region of the test zone.
In one embodiment, the vehicle to be tested is provided with an on-board power supply and is connected with an in-vehicle buzzer through a switch.
In one embodiment, the sensor mount is mounted directly in front of the vehicle to be tested by a fixing plate.
The utility model discloses a technical scheme that embodiment provided can include following beneficial effect:
the utility model discloses utilize preparation cars such as photoelectric sensor, sensor support, car interior buzzer, power, switch, road reflector panel to go with higher speed in the noise test outside the car test acceleration point and ending point and lane go position judgement device.
The utility model discloses utilize five reflectors of setting in the test area, judge that the test vehicle traveles at test road central authorities to and judge with higher speed point and finish point position, ensure the validity of data, guarantee the security among the test process.
Compared with the prior art, the utility model has the advantages that:
(1) the device can help testers and drivers to judge the test acceleration point and the test ending point of the external noise test of the accelerated running vehicle of the automobile and the position of the running vehicle on a test road, assists the drivers to determine the full-open time of the accelerator, and assists the testers to judge the validity of test data after data acquisition is completed.
(2) The vehicle position judging method comprises the steps of providing a photoelectric sensor electric system, a license plate type sensor bracket and a sensor mounting mode; the safety, the accuracy and the test efficiency of the noise test outside the accelerated running vehicle of the automobile can be improved.
(3) The device can help testers and drivers to judge the test acceleration point and the end point of the noise test outside the accelerated automobile and the position of the automobile running on a test road; the running times in the test process are reduced, the test cost is reduced, and the safety in the test process is ensured.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure, as claimed
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic view of an accelerated noise measurement apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic circuit diagram according to an embodiment of the present invention.
Fig. 3 is a front view of a sensor holder (accelerated noise measurement device) according to an embodiment of the present invention.
Fig. 4 is an isometric view of a sensor holder (accelerated noise measurement device) according to an embodiment of the present invention.
Wherein (a) - (f) are isometric views from different perspectives.
Fig. 5 is a rear view of a sensor holder (accelerated noise measurement device) according to an embodiment of the present invention.
Fig. 6 is a left side view of a sensor holder (accelerated noise measurement device) according to an embodiment of the present invention.
Fig. 7 is a right side view of a sensor holder (accelerated noise measurement device) according to an embodiment of the present invention.
Fig. 8 is a top view of a sensor holder according to an embodiment of the present invention.
Fig. 9 is a bottom view of a sensor holder according to an embodiment of the present invention.
Fig. 10 is a schematic diagram of measurements provided by the prior art.
In the figure: 1. a first test reflector is prepared; 2. secondly, preparing a testing reflector; 3. testing the reflector at an acceleration point; 4. testing the reflector at the driving position in the test area; 5. testing the reflector at the end point; 6. a photosensor; 7. a sensor holder; 8. a buzzer in the vehicle; 9. a vehicle-mounted power supply; 10. and (4) switching.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
As shown in fig. 1 to 9, an accelerated noise measurement apparatus according to an embodiment of the present disclosure includes: the device comprises a first ready-to-test reflector 1, a second ready-to-test reflector 2, an acceleration point test reflector 3, a test area running position test reflector 4, an end point test reflector 5, a photoelectric sensor 6, a sensor support 7, an in-vehicle buzzer 8, a vehicle-mounted power supply 9 and a switch 10.
The utility model discloses in, sensor support 7 can realize that the sensor is quick, firmly linked with the test vehicle. The sensor is replaced in different test workshops within two minutes, so that the test efficiency is greatly improved.
In the present invention, the sensor holder 7 (acceleration noise measuring device) is shown in the front view of fig. 3, the isometric view of fig. 4(a) to fig. 4(f)), the rear view of fig. 5, the left view of fig. 6, the right view of fig. 7, and the top view of fig. 8; fig. 9 is a bottom view.
The sensor support 7 can ensure the stability of the sensor of the vehicle in the extreme driving state, ensure the test precision, and the replacement (trolley-cart) among different vehicle types can quickly adjust the height of the sensor up and down to ensure the use of the sensor. The testing reflector arranged at different positions in the testing area is used for sending optical signals, the photoelectric sensor 6 judges the received optical signals, obtains the position information of the test vehicle running at the center of the testing road, judges the position information of an acceleration point and an end point, feeds back the judged information, and prompts whether the data in the test of the noise outside the vehicle running with the accelerated vehicle is effective or not.
The test reflectors at different positions in the test area are arranged at a first preparation test point, a second preparation test point, an acceleration point, a test area driving position point and an end point of the test area.
And judging that the test vehicle runs in the center of the test road by utilizing five reflectors arranged in the test area, and judging the positions of an acceleration point and an end point. The validity of data is ensured, and the safety in the test process is ensured.
Whether the data in the test for the noise outside the accelerated vehicle of the vehicle is effective or not comprises the following steps:
the test vehicle passes through the first preparation test reflector 1 and the second preparation test reflector 2 at a specified uniform approaching speed, and an accelerator pedal is kept unchanged when the test vehicle passes through the accelerator point test reflector 3; when the test vehicle passes through the test reflector 4 at the driving position of the test area and the test reflector 5 at the end point, the test is ended, and the accelerator pedal is released;
the vehicle-mounted power supply 9 supplies power to the broadcasting and television sensor 6, and the photoelectric sensor 6 is electrically connected with the buzzer 8 in the vehicle; the vehicle-mounted power supply 9 is also electrically connected with the vehicle-mounted buzzer 8 through a switch 10. When the photoelectric sensor 6 receives optical signals of the first ready-to-test reflector 1, the second ready-to-test reflector 2, the acceleration point test reflector 3, the test area driving position test reflector 4 and the end point test reflector 5 at different positions each time, the optical signals are fed back to the in-vehicle buzzer 8 to send out buzzer sound; and after the buzzer 8 in the vehicle prompts for five times, judging that the test data are valid.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure should be limited only by the attached claims.
Claims (4)
1. A noise test device for an acceleration traveling vehicle, comprising:
the test reflectors are arranged at different positions in the test area;
the photoelectric sensor is arranged at the front part of the vehicle to be tested through the sensor bracket and is used for receiving the optical signal of the test reflector;
and the buzzer in the vehicle is used for receiving the optical signal processed by the photoelectric sensor and prompting whether the data in the noise test outside the accelerated running vehicle of the vehicle is valid or not.
2. The noise testing apparatus of an accelerated moving vehicle according to claim 1, wherein the test reflector comprises:
a first ready-to-test reflector and a second ready-to-test reflector arranged in front of the test area;
the test light reflecting plate is arranged at an acceleration point of the test area acceleration area;
the test reflector is arranged at the running position of the test area;
the test reflectors were placed at the end point of the end zone of the test zone.
3. The noise test device for an accelerated vehicle according to claim 1, wherein the vehicle to be tested is equipped with a vehicle-mounted power supply and is connected to an in-vehicle buzzer through a switch.
4. The noise testing apparatus of an acceleration-traveling vehicle according to claim 1, wherein the sensor holder is installed at the front of the vehicle to be tested through a fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120384889.3U CN214748880U (en) | 2021-02-19 | 2021-02-19 | Noise test device of automobile running with higher speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120384889.3U CN214748880U (en) | 2021-02-19 | 2021-02-19 | Noise test device of automobile running with higher speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214748880U true CN214748880U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120384889.3U Active CN214748880U (en) | 2021-02-19 | 2021-02-19 | Noise test device of automobile running with higher speed |
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| Country | Link |
|---|---|
| CN (1) | CN214748880U (en) |
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2021
- 2021-02-19 CN CN202120384889.3U patent/CN214748880U/en active Active
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Address after: 300457 No.81, 9th Street, Binhai New Area Economic and Technological Development Zone, Tianjin Patentee after: FAW Toyota Motor Co.,Ltd. Country or region after: China Address before: 300457 No.81, 9th Street, Binhai New Area Economic and Technological Development Zone, Tianjin Patentee before: TIANJIN FAW TOYOTA MOTOR Co.,Ltd. Country or region before: China |