CN112677887B - Vehicle body posture testing equipment and testing method - Google Patents
Vehicle body posture testing equipment and testing method Download PDFInfo
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- CN112677887B CN112677887B CN202011458492.0A CN202011458492A CN112677887B CN 112677887 B CN112677887 B CN 112677887B CN 202011458492 A CN202011458492 A CN 202011458492A CN 112677887 B CN112677887 B CN 112677887B
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- 238000012360 testing method Methods 0.000 title claims abstract description 56
- 238000009434 installation Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 claims description 5
- 230000002194 synthesizing effect Effects 0.000 claims description 3
- 230000001568 sexual effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 4
- 206010039203 Road traffic accident Diseases 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910001008 7075 aluminium alloy Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 229910052744 lithium Inorganic materials 0.000 description 1
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Abstract
The invention provides a vehicle body posture testing device and a testing method. Any feature position of the vehicle body can be positioned with high precision through the angle adjusting bracket, so that the vehicle body posture is tested, the test equipment is simple in structure, the operation method is simple and convenient, and the test precision is high by combining the analysis of test software.
Description
Technical Field
The invention relates to the technical field of automobile testing equipment, in particular to automobile body posture testing equipment and a testing method.
Background
According to the development of future intelligent driving and automatic driving technologies, the requirements on accurate measurement of the vehicle posture and real-time data feedback and processing in running are more and more clear, the vehicle body posture can directly reflect the safety state of the vehicle, meanwhile, as the quantity of vehicles increases with the increase of economy, urban traffic and inter-city traffic face safety problems such as large vehicle flow, high speed, multiple accidents and the like, when serious traffic accidents happen to the vehicle, the vehicle body posture often deforms seriously, but sometimes the following vehicles cannot know the information of the serious accidents of the preceding vehicles timely, so that serious traffic accidents happen to the interlinked collision, the situation happens sometimes in the expressway driving process, especially in the case of bad weather conditions, the root cause is that the place where the traffic accidents happen to the vehicle cannot be found timely and early warning is carried out, so that the driving posture of the vehicle is known in real time, and the information is sent and broadcast timely under the circumstance of serious deformation.
In the prior art, the change of the vehicle body posture is detected according to the vehicle body height sensor, the change of the vehicle body posture is reflected by the change of the vehicle body suspension swing arm angle, the common practice is to collect the physical signal of the change of the vehicle body suspension swing arm angle by adopting the acceleration sensor arranged on the vehicle body suspension swing arm, convert the physical signal into an electric signal, provide the electric signal for a vehicle body control system for controlling and adjusting the angle of a front headlight of a vehicle, so that the irradiation distance can be kept unchanged no matter how the vehicle body posture angle changes, and the safety driving is facilitated.
Disclosure of Invention
Aiming at the problems pointed out in the background technology, the invention provides vehicle body posture testing equipment and a testing method.
The technical scheme of the invention is realized as follows:
a vehicle body posture test apparatus characterized in that: the angle adjusting bracket comprises an angle adjusting bracket, two ends of the angle adjusting bracket are fixedly provided with GPS antennas, a data module is fixedly arranged on the angle adjusting bracket, and the bottom of the angle adjusting bracket is fixedly connected with a sucker.
Further provided is that: the angle adjusting bracket comprises an antenna bracket, a supporting disc is fixedly arranged on the antenna bracket, a second left rotating seat and a second right rotating seat are fixedly arranged on the antenna bracket, a left overturning frame is hinged to be matched with a left sucker frame, a right overturning frame is hinged to be matched with a right sucker frame, the left sucker frame is fixedly connected with the right sucker frame through a connecting rod arranged between the right sucker frame, the connecting rod is in sliding fit with a first left rotating seat and a first right rotating seat, the first left rotating seat is hinged to be matched with a first screw rod mounting seat between the first right rotating seat, a second left rotating seat and a second right rotating seat are fixedly arranged on the antenna bracket, a second screw rod mounting seat is hinged to be matched with a second screw rod mounting seat between the second left rotating seat and the second right rotating seat, and the first screw rod mounting seat is in threaded fit with a screw rod.
Further provided is that: the sucker comprises a sucker pad, the sucker pad is fixedly connected with a manual pump, and the left sucker frame and the right sucker frame are respectively in hinged fit with the sucker.
Further provided is that: the first screw rod mounting seat is provided with a rotary locking screw.
Further provided is that: one end of the screw rod, which is close to the antenna bracket, is fixedly connected with a rotary handle.
A vehicle body posture testing method comprising a method of testing a vehicle body posture using the testing apparatus of any one of the above, the method comprising the steps of:
s1, setting the installation position of test equipment, and selecting different test modes to fill out feature point coordinates according to different installation positions;
s2, calculating the absolute position and motion data of the earth of the test equipment through GPS antennas and thousands of seeking and inertial navigation data, then calculating the position information of each point to be detected according to the related data input by a software interface, and synthesizing a characteristic point motion trail graph;
s3, analyzing the outward swing values, the right-angle bend trafficability and the minimum turning diameters of different test modes through software.
Further provided is that: the test equipment is arranged in front of the vehicle head and is not in the ground projection range of the characteristic points of the vehicle body or in the ground projection range of the characteristic points of the vehicle body.
Further provided is that: when the external swing value is detected, the included angle between the test equipment and the vehicle body is calculated by reading the initial straight line segment direction of the vehicle, after the vehicle starts to turn, the value of the external contour exceeding the external contour extension line when the vehicle runs straight line is calculated according to the positioning data, and the maximum value generated by comparison is the external swing value of the vehicle.
Further provided is that: when the right-angle curve passes the sexual test, the angle between the vehicle initial straight line segment direction calculating device and the vehicle body is read, the position of the characteristic point is calculated according to the positioning data, then the two characteristic points on the inner side of the vehicle are connected to form a line segment when the vehicle turns, the minimum tangent point of each line segment on the vehicle track is calculated, the minimum tangent point track curve is formed by connecting the minimum tangent point track curve with the characteristic point curve on the front end of the outer side of the vehicle, the normal line with the largest distance is obtained, and the length of the normal line is the maximum channel width of the right-angle curve.
Further provided is that: when the minimum turning diameter is measured, the included angle between the vehicle initial straight line segment direction calculating equipment and the vehicle body is read, after the vehicle starts to turn, a characteristic point track diagram is made according to the positioning data, and the calculated characteristic point track diameter is the minimum turning diameter.
In summary, the beneficial effects of the invention are as follows: according to the vehicle body posture testing equipment and the testing method, any characteristic position of the vehicle body can be positioned with high precision through the angle adjusting bracket, so that the vehicle body posture can be tested, the testing equipment is simple in structure, the operation method is simple and convenient, and the testing precision is high by combining with the analysis of testing software.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a test apparatus according to the present invention;
FIG. 2 is a trace diagram of a feature point of the outward swing value detection in the present invention;
FIG. 3 is a trace of characteristic points of a right angle bend trafficability test in the present invention;
fig. 4 is a plot of feature point trajectories for minimum turn diameter measurements in the present invention.
Reference numerals: 1. a GPS antenna; 2. a data module; 3. a suction cup; 4. an antenna support; 5. a support plate; 6. a left roll-over stand; 7. a right roll-over stand; 8. a left sucker frame; 9. a right sucker frame; 10. a connecting rod; 11. a first left rotary seat; 12. a first right swivel mount; 13. a first screw rod mounting seat; 14. a second left rotary seat; 15. a second right swivel mount; 16. a second screw rod mounting seat; 17. a screw rod; 18. the handle is rotated.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
The invention is illustrated below with reference to fig. 1-4:
the utility model provides a vehicle body gesture test equipment, includes angle adjusting support, and angle adjusting support both ends are all fixed to be set up GPS antenna 1, and angle adjusting support is last to be fixed to set up data module 2, and angle adjusting support bottom fixed connection sucking disc 3. The testing equipment is adsorbed on the smooth surfaces of an engine cover, a windshield, a roof and the like of the vehicle through the sucker 3, and the posture of the GPS antenna 1 is adjusted through the angle adjusting bracket; the suction cup 3 is made of silicon rubber, and the maximum suction force of the single suction cup 3 is 70kg; the angle adjusting bracket is processed by 7075 aluminum, so that the strength is good, and the hardness is high; and the data module 2 is internally provided with inertial navigation, thousands of searches, WIFI, GPS, lithium batteries and the like to complete the functions of data integration and transmission.
In the specific structure of the angle adjusting bracket for adjusting the posture of the GPS antenna 1, the angle adjusting bracket comprises an antenna bracket 4, a supporting disc 5 is fixedly arranged on the antenna bracket 4, a data module 2 is fixedly arranged on the supporting disc 5, and a left roll-over stand 6 and a right roll-over stand 7 are arranged at the bottom side of the antenna bracket 4; the left roll-over stand 6 is hinged with the left sucker frame 8, the right roll-over stand 7 is hinged with the right sucker frame 9, and both the left roll-over stand 6 and the left sucker frame 8 and the right roll-over stand 7 and the right sucker frame 9 are hinged with each other through connecting shafts; the left sucker frame 8 is fixedly connected with the right sucker frame 9 through a connecting rod 10; the connecting rod 10 is in sliding fit with the first left rotating seat 11 and the first right rotating seat 12, and the first left rotating seat 11 and the first right rotating seat 12 can slide left and right on the connecting rod 10; a first screw rod mounting seat 13 is hinged and matched between the first left rotary seat 11 and the first right rotary seat 12; the antenna bracket 4 is fixedly provided with a second left rotating seat 14 and a second right rotating seat 15, a second screw rod installation seat 16 is hinged between the second left rotating seat 14 and the second right rotating seat 15, the second screw rod installation seat 16 and the first screw rod installation seat 13 are both in threaded fit with a screw rod 17, and one end of the screw rod 17 close to the antenna bracket 4 is fixedly connected with a rotating handle 18.
Further, the first screw mounting seat 13 is provided with a rotation locking screw, and when the position is adjusted, the screw is fixed by rotating the locking screw.
Further, the sucker 3 comprises a sucker pad, a cavity is formed in the sucker pad, the sucker pad is fixedly connected with a manual pump, and air in the cavity is pumped out by the manual pump, so that the sucker 3 is tightly attached to a vehicle body, and the left sucker frame 8 and the right sucker frame 9 are respectively hinged to the sucker 3 and then are fixed through screws.
A vehicle body posture testing method uses testing equipment to test the vehicle body posture, comprising the following steps:
s1, setting the installation position of test equipment, and selecting different test modes to fill out feature point coordinates according to different installation positions; the test equipment is mounted in front of the vehicle head and is not in the ground projection range of the characteristic points of the vehicle body or in the ground projection range of the characteristic points of the vehicle body.
S2, calculating the absolute position and motion data of the earth of the test equipment through the GPS antenna 1 and the thousands of seeking and inertial navigation data difference, then calculating the position information of each point to be detected according to the related data input by the software interface, and synthesizing a characteristic point motion trail graph.
S3, analyzing the outward swing values, the right-angle bend trafficability and the minimum turning diameters of different test modes through software.
As shown in fig. 2, when the external swing value is detected, the included angle between the test equipment and the vehicle body is calculated by reading the initial straight line segment direction of the vehicle, after the vehicle starts turning, the value of the external contour exceeding the external contour extension line when the vehicle runs straight is calculated according to the positioning data, and the maximum value generated by comparison is the external swing value of the vehicle.
As shown in fig. 3, during a right-angle curve passing test, by reading the included angle between the vehicle initial straight line segment direction calculating device and the vehicle body, calculating the position of a feature point according to positioning data, then connecting two feature points on the inner side of the vehicle during turning to form a line segment, calculating the minimum tangent point of each line segment on the running track, connecting the minimum tangent point track curve to form a minimum tangent point track curve, comparing the curve with the front end feature point curve on the outer side of the vehicle, and obtaining the normal with the largest distance, wherein the length of the normal is the maximum channel width of the right-angle curve.
As shown in fig. 4, when the minimum turning diameter is measured, the included angle between the vehicle initial straight line segment direction calculating device and the vehicle body is read, after the vehicle starts to turn, a characteristic point track diagram is made according to the positioning data, and the calculated characteristic point track diameter is the minimum turning diameter.
Wherein in fig. 2-4 a represents a positioning data trajectory GP; b represents a left front locating point track LF; c represents a left rear positioning point locus LB; d represents the right front anchor point track RF; e represents a right rear anchor point track RB; f represents a vehicle body inside minimum radius tangent point track RA; g denotes the maximum channel width position LM.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Claims (7)
1. A vehicle body posture testing method is characterized in that: including angle adjusting bracket, angle adjusting bracket both ends are all fixed setting GPS antenna (1), angle adjusting bracket goes up fixed setting data module (2), angle adjusting bracket bottom fixed connection sucking disc (3), sucking disc (3) are including sucking disc pad, sucking disc pad fixed connection manual pump, left sucking disc frame (8) and right sucking disc frame (9) respectively with sucking disc (3) articulated cooperation, angle adjusting bracket includes antenna boom (4), fixed setting supporting disk (5) on antenna boom (4), fixed setting on supporting disk (5) data module (2), antenna boom (4) bottom side is equipped with left turning frame (6) and right turning frame (7), left turning frame (6) articulated cooperation left sucking disc frame (8), right turning frame (7) articulated cooperation right sucking disc frame (9), left sucking disc frame (8) with connect through connecting rod (10) fixed connection that sets up between right sucking disc frame (9) between connecting rod (10) sliding fit first rotary seat (11) and first rotary seat (12), left rotary seat (14) and right rotary seat (14) are fixed setting up between first rotary seat (14) and the first rotary seat (14), the second screw rod installation seat (16) is hinged between the second left rotary seat (14) and the second right rotary seat (15), the screw rods (17) are respectively matched with the second screw rod installation seat (16) and the first screw rod installation seat (13) in a threaded mode, and the testing method is as follows:
s1, setting the installation position of test equipment, and selecting different test modes to fill out feature point coordinates according to different installation positions;
s2, calculating the absolute position and motion data of the earth of the test equipment through the GPS antenna (1) and the thousands of seeking and inertial navigation data difference, then calculating the position information of each point to be detected according to the related data input by a software interface, and synthesizing a characteristic point motion trail graph;
s3, analyzing the outward swing values, the right-angle bend trafficability and the minimum turning diameters of different test modes through software.
2. The vehicle body posture testing method according to claim 1, characterized in that: the test equipment is arranged in front of the vehicle head and is not in the ground projection range of the characteristic points of the vehicle body or in the ground projection range of the characteristic points of the vehicle body.
3. The vehicle body posture testing method according to claim 1, characterized in that: when the external swing value is detected, the included angle between the test equipment and the vehicle body is calculated by reading the initial straight line segment direction of the vehicle, after the vehicle starts to turn, the value of the external contour exceeding the external contour extension line when the vehicle runs straight line is calculated according to the positioning data, and the maximum value generated by comparison is the external swing value of the vehicle.
4. The vehicle body posture testing method according to claim 1, characterized in that: when the right-angle curve passes the sexual test, the angle between the vehicle initial straight line segment direction calculating device and the vehicle body is read, the position of the characteristic point is calculated according to the positioning data, then the two characteristic points on the inner side of the vehicle are connected to form a line segment when the vehicle turns, the minimum tangent point of each line segment on the vehicle track is calculated, the minimum tangent point track curve is formed by connecting the minimum tangent point track curve with the characteristic point curve on the front end of the outer side of the vehicle, the normal line with the largest distance is obtained, and the length of the normal line is the maximum channel width of the right-angle curve.
5. The vehicle body posture testing method according to claim 1, characterized in that: when the minimum turning diameter is measured, the included angle between the vehicle initial straight line segment direction calculating equipment and the vehicle body is read, after the vehicle starts to turn, a characteristic point track diagram is made according to the positioning data, and the calculated characteristic point track diameter is the minimum turning diameter.
6. The vehicle body posture testing method according to claim 1, characterized in that: the first screw rod mounting seat (13) is provided with a rotary locking screw.
7. The vehicle body posture testing method according to claim 1, characterized in that: one end of the screw rod (17) close to the antenna bracket (4) is fixedly connected with a rotary handle (18).
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| CN112677887B true CN112677887B (en) | 2024-02-27 |
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| CN114013427B (en) * | 2021-11-13 | 2024-07-09 | 安徽江淮汽车集团股份有限公司 | Parking data processing method for automatic parking test |
| CN114414256B (en) * | 2021-12-21 | 2024-04-12 | 广西汽车集团有限公司 | Device and method for testing turning passing boundary of intelligent network-connected automobile under perceived deviation |
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| CN112677887A (en) | 2021-04-20 |
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