CN222006371U - A soft target carrying platform for automobile testing - Google Patents
A soft target carrying platform for automobile testing Download PDFInfo
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- CN222006371U CN222006371U CN202323656289.6U CN202323656289U CN222006371U CN 222006371 U CN222006371 U CN 222006371U CN 202323656289 U CN202323656289 U CN 202323656289U CN 222006371 U CN222006371 U CN 222006371U
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 239000000725 suspension Substances 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004088 simulation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 241001494479 Pecora Species 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 239000006260 foam Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
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Abstract
The utility model discloses a soft object carrying platform for automobile test, which comprises a platform frame, wherein the platform frame comprises a chassis, a supporting frame and a cover plate; the wheel modules are arranged into four groups and distributed in the platform frame, and each group of wheel modules is provided with a driving module, a steering module, an air suspension mechanism and wheels; the driving module is used for driving the wheels to rotate, and the steering module is used for driving the wheels to steer. The air suspension mechanism comprises an air cylinder positioned on one side of a fixed plate of the supporting frame and a wheel suspension swing arm arranged on the other side of the fixed plate, and the wheel suspension swing arm is hinged with a suspension fixing support arranged on the fixed plate through a swing arm rotating shaft. The carrying platform provided by the utility model is provided with a four-wheel standard modularized distributed driving structure, and the four wheels are provided with the same mechanical structure, so that the standardization of equipment parts and the modularization of maintenance are realized.
Description
Technical Field
The utility model relates to the field of automobile testing, in particular to a soft target carrying platform for automobile testing.
Background
As automotive ADAS (advanced driver assisted driving) technology evolves, so too does the testing and verification technology of ADAS functionality. Taking a common AEB (automatic emergency brake) function test as an example, international authoritative evaluation organizations release CNCAP (new car evaluation specification in china)/ENCAP (new car evaluation specification in europe), and recommend simulation targets made of flexible materials, such as: the simulation person, the simulation vehicle, the simulation animal and the like perform relative motion with the vehicle according to a specified motion track, so that the AEB function is triggered. And (5) checking and evaluating the quality of the AEB function through data recording.
How to enable the simulation target object to move according to a specified track, and the safety of a vehicle is not affected after the test failure collides is one of the cores of the test technology; meanwhile, as the target objects are various, how to be compatible with various target objects and adapt to the movement requirements of the target objects is also one of core technologies.
Aiming at the functional requirement, international and domestic manufacturers propose corresponding solutions, and the common idea is to use a carrying platform which is low in appearance and is internally provided with a power and control system, carry different targets, move according to a specified track and speed, and the platform can bear rolling and impacting of vehicles.
US corporation, earliest 2012, proposed a device, system and method for testing crash technologies in patent US2013017346A1, which devised a low-profile carrier platform and carried a foam hull simulating the appearance of a real vehicle, the overall system being useful for vehicle crash testing.
The scheme is the earliest technical scheme, is popularized in Europe and America, and is widely used in China along with the starting of Chinese market demands after 2017. The scheme uses integrated carrying chassis, the size of the chassis is 3000x1650x110mm, the weight reaches 315kg, and the carrying equipment needs to use forklift trucks and large trucks. The initial usage units are mainly concentrated in the national large automobile test centers, all of which have own test sites, and the equipment does not need to be moved frequently. With the rise of test requirements in recent years, more research and development institutions and small enterprises also need similar equipment, and the enterprises often do not have own test sites, and need to borrow external sites, so the enterprises need to transfer among different test sites, and the portability of imported equipment is poor and is gradually recognized by industry.
On the other hand, the solution of the carrier chassis proposed in the above patent US2013017346A1 can only carry the object simulating the full-size automobile, but the test process also needs the objects simulating different sizes such as human/simulated bicycle/simulated tricycle, so that foreign manufacturers also put forward a carrier platform carrying the small object, and uk also has a company put forward a small carrier platform carrying the pedestrian object and also sell in china.
The equipment is designed and positioned abroad, different targets need to be carried by using different platforms, so that enterprise purchasing equipment needs to purchase multiple sets of inlet equipment to finish testing tasks, and the management difficulty of the equipment is increased.
Disclosure of utility model
The soft object carrying platform for the automobile test is provided by the patent, and the device is designed in a lightweight manner, so that more stable test equipment is provided for the automobile test market. At present, the large target carrying platform of the imported product has huge volume, heavy weight and incapability of being carried by common manpower, needs resources such as forklift trucks, flat truck and the like, and has high transfer cost and low efficiency.
The imported small-sized object carrying platform can only carry small-sized objects like pedestrians and bicycles, and cannot carry objects like newly-added simulation logistics tricycles and large-sized motorcycles in China.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
A soft object carrying platform for automobile test is characterized by comprising
The platform frame comprises a chassis, a supporting frame and a cover plate;
The wheel modules are arranged into four groups and distributed in the platform frame, and each group of wheel modules is provided with a driving module, a steering module, an air suspension mechanism and wheels;
The driving module is used for driving the wheels to rotate, and the steering module is used for driving the wheels to steer;
The air suspension mechanism comprises an air cylinder positioned on one side of a fixed plate of the supporting frame and a wheel suspension swing arm arranged on the other side of the fixed plate, the wheel suspension swing arm is hinged with a suspension fixed support arranged on the fixed plate through a swing arm rotating shaft, and a piston push rod of the air cylinder penetrates through the fixed plate and is contacted with the middle area of a support plate of the wheel suspension swing arm so that a driving piston push rod of the air cylinder conducts acting force to rotate along the swing arm rotating shaft;
the wheel is positioned at one side of the wheel suspension swing arm.
Further, the air suspension mechanism further comprises a fixed limit screw rod positioned on a fixed plate of the supporting frame and a limit groove positioned on the wheel suspension swing arm and corresponding to the limit screw rod.
Further, the steering module comprises a steering claw positioned between an upper swing arm and a lower swing arm of the wheel suspension swing arm, a first driving motor for driving the steering claw to rotate, and a connecting rod mechanism connected with one end of an output shaft of the first driving motor, and the other end of the connecting rod mechanism is connected with one side of the steering claw;
The steering knuckle is connected with the upper swing arm and the lower swing arm of the wheel suspension swing arm through a steering main pin so that the steering axle center of the steering knuckle rotates along the steering main pin;
one side of the steering knuckle is connected with the wheels.
Further, the driving module comprises a driving motor and a gear reduction box connected with the driving motor, and the gear reduction box is connected with the steering knuckle through a universal joint through an output shaft.
Further, the other ends of the output shafts of the driving modules of the two front wheels and the two rear wheels are connected with a brake device.
Further, the carrying platform may be hinged in two or more.
Compared with the prior art, the utility model has the following beneficial effects:
1. The carrying platform provided by the application has a four-wheel standard modularized distributed driving structure, and the four wheels are provided with the same mechanical structure, so that the standardization of equipment parts and the modularization of maintenance are realized, and the high-efficiency maintenance and replacement can be realized. The distributed four wheel drive machine configuration is different from the "front four wheel steering, rear wheel one wheel drive three wheel machine configuration patent" mentioned in the U.S. DRI company US2013017346A1 patent. The distributed four-wheel drive can enable the total power of the platform to be distributed to the driving module of each wheel, reduces the power requirement of a single motor, substantially avoids the short plate with insufficient power density of the current domestic miniature motor, solves the problem that the power of the current domestic miniature motor is insufficient to drive the platform to achieve 100km/h of high-speed movement power neck, and simultaneously, the four-wheel drive also averages the traction force of each wheel and reduces the abrasion of the single wheel.
2. Through design air suspension mechanism, can realize the contact height of wheel and ground, the height realization adjustable use of platform and ground promptly.
3. The mechanism design can be used in a modularized mode, a plurality of mechanisms can be connected together, and the mechanism is light in weight, easy to carry and convenient to use. A set of domestic equipment can realize the function of importing 2 sets of products through splitting-combined use. Meanwhile, the weight of single equipment is reduced, manual carrying can be realized, and space size can be carried by using a pick-up and a van.
4. Through the design wheel is to the module to hang the swing arm through the wheel and be restrained by swing arm fixed bolster and pitch angle swing kingpin, only can roll around swing arm rotation axis every single move swing, turn to the sheep horn and be restrained by steering kingpin, can only be under the push/pulling force F effect of steering pushrod, revolute and turn to the rotation axle center and carry out yaw angle rotation, realize the deflection of wheel directional angle and vehicle route, thereby realize turning to.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a soft object carrying platform for automobile test according to the present utility model;
FIG. 2 is a schematic diagram of a chassis of a soft object carrying platform for automotive testing according to the present utility model;
FIG. 3 is an interior view of a soft object carrier platform for automotive testing according to the present utility model;
FIG. 4 is a schematic diagram of a partial structure of a soft object carrying platform for automobile testing according to the present utility model;
FIG. 5 is a schematic view of a part of a soft object carrying platform for automobile test according to the present utility model;
FIG. 6 is another schematic view of a partial structure of a soft object carrying platform for automobile test according to the present utility model;
FIG. 7 is a schematic diagram of another embodiment of a soft object carrying platform for automobile testing according to the present utility model.
In the figure: 1-a platform frame; 11-chassis; 12-a support frame; 13-cover plate; 2-a wheel module; 3-a driving module; 31-a second drive motor; 32-a gear reduction box; 33-a brake device; 4-a steering module; 41-steering a sheep horn; 42-a first drive motor; 43-steering linkage; 44-kingpin; 5-air suspension swing arms; 51-cylinder; 52-wheel suspension swing arms; 53-a swing arm fixing seat; 54-a swing arm rotation axis; 55-limiting screws; 56-limiting grooves; 511-piston push rod; 6-wheels.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Example 1, see FIGS. 1-7
The soft object carrying platform for automobile test in this embodiment comprises a platform frame 1, wherein the platform frame 1 comprises a chassis 11, a supporting frame 12 and a cover plate 13, and wheel holes are formed in the platform frame and used for releasing wheels to contact with the ground. The supporting frame refers to the structures such as a fixing plate, a supporting plate and the like which are necessary for supporting, blocking and the like in the platform frame. In a specific arrangement, the upper cover plate of the carrying platform is composed of a plurality of blocks, wherein the cover plates at the four edges are in a certain slope shape, so that the running of the vehicle during testing is facilitated. Four wheel modules 2 are distributed in the platform frame 1, and each wheel module 2 comprises two groups of front wheel modules and two groups of rear wheel modules, wherein each group of wheel modules 2 is provided with a driving module 3 for driving wheels to rotate, a steering module 4 for driving the wheels to steer, an air suspension mechanism 5 for suspending the wheels and wheels 6.
That is, the carrying platform of the application has a four-wheel standard modularized distributed driving structure, and the four wheels are provided with the same mechanical structure, thereby realizing the standardization of equipment parts and the modularization of maintenance, and realizing the high-efficiency maintenance and replacement. The distributed four wheel drive machine configuration is different from the "front four wheel steering, rear wheel one wheel drive three wheel machine configuration patent" mentioned in the U.S. DRI company US2013017346A1 patent. The distributed four-wheel drive can enable the total power of the platform to be distributed to the driving module of each wheel, reduces the power requirement of a single motor, substantially avoids the short plate with insufficient power density of the current domestic miniature motor, solves the problem that the power of the current domestic miniature motor is insufficient to drive the platform to achieve 100km/h of high-speed movement power neck, and simultaneously, the four-wheel drive also averages the traction force of each wheel and reduces the abrasion of the single wheel.
The air suspension mechanism 5 comprises an air cylinder 51 positioned on one side of a fixed plate 123 of the supporting frame 12 and a wheel suspension swing arm 52 arranged on the other side of the fixed plate 123, the wheel suspension swing arm 52 is hinged with a suspension fixing support 53 arranged on the fixed plate 123 through a swing arm rotating shaft 54, a piston push rod 511 of the air cylinder 51 penetrates through the fixed plate 123 and can be contacted with the middle area of a support plate of the wheel suspension swing arm 52 so that the piston push rod 511 of the air cylinder 51 conducts acting force to rotate along the swing arm rotating shaft 54 on the wheel suspension swing arm 52, and the wheel 6 is connected with one side of the wheel suspension swing arm 52. In other words, the wheel suspension swing arm 52 can perform pitching rotation around the swing arm rotation shaft 54, and the thrust of the cylinder piston push rod 511 acts on the middle part of the support plate of the wheel suspension swing arm to form moment balance around the swing arm rotation shaft 54. The length of the piston push rod 511 determines the rotation angle of the wheel suspension swing arm 52, and the longer the piston push rod 511 extends, the more horizontal the wheel suspension swing arm 52 is, and the higher the distance from the chassis of the platform frame to the ground is driven.
Specifically, to constrain rotation of the wheel suspension swing arm, the air suspension mechanism further includes a fixed limit screw 55 on a fixed plate of the support frame and a limit groove 56 on the wheel suspension swing arm 52 corresponding to the limit screw 55.
In the present embodiment, the steering module 4 includes a steering horn 41 located between an upper swing arm 521 and a lower swing arm 522 of the wheel suspension swing arm 52, a first driving motor 42 for driving the steering horn 41 to rotate, and a link mechanism 43 connected to one end of an output shaft of the first driving motor 42, the other end of the link mechanism 43 being connected to one side of the steering horn 41; the steering knuckle 41 is connected to both the upper swing arm 521 and the lower swing arm 522 of the wheel suspension swing arm 52 via a steering kingpin 44 so that the steering axis of the steering knuckle 41 rotates along the steering kingpin 44. The steering knuckle 41 is connected to the wheel 6 on one side. The wheel suspension swing arm 52 is restrained by the swing arm fixing support 53 and the pitch angle swing kingpin, can only swing in pitch around the swing arm rotation shaft, the steering knuckle is restrained by the steering kingpin, and can only rotate in yaw around the steering rotation axis under the push/pull force F of the steering push rod, so that the steering is realized by realizing the steering of the wheel pointing angle and the deflection of the vehicle route. The four wheel modules of the carrying platform have driving and steering capabilities at the same time, so that the chassis has 4-wheel steering capability, and the four-wheel homodromous/differential steering function of the carrying platform can be realized through the control system. The low-speed turning differential steering can reduce the turning radius, and the high-speed lane-changing homodromous steering can improve the motion stability.
Specifically, the drive module 3 includes a drive motor 31 and a gear reduction box 32 connected to the drive motor 31, and the gear reduction box 32 is connected to a steering knuckle 41 through an output shaft 34 by a universal joint 35. The steering knuckle 41 has a bearing, which is connected to a wheel shaft, and the universal joint 35 is connected to the bearing.
Specifically, the other end of the output shaft of the drive module 2 of the two front wheels or the two rear wheels is connected to a brake device 33.
In some embodiments, the carrying platform may be hinged by two or more hinges 7. Typically 2 or 4 carrier platform connections.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. A soft object carrying platform for automobile test is characterized by comprising
The platform frame comprises a chassis, a supporting frame and a cover plate;
The wheel modules are arranged into four groups and distributed in the platform frame, and each group of wheel modules is provided with a driving module, a steering module, an air suspension mechanism and wheels;
The driving module is used for driving the wheels to rotate, and the steering module is used for driving the wheels to steer;
The air suspension mechanism comprises an air cylinder positioned on one side of a fixed plate of the supporting frame and a wheel suspension swing arm arranged on the other side of the fixed plate, the wheel suspension swing arm is hinged with a suspension fixed support arranged on the fixed plate through a swing arm rotating shaft, and a piston push rod of the air cylinder penetrates through the fixed plate and is contacted with the middle area of a support plate of the wheel suspension swing arm so that a driving piston push rod of the air cylinder conducts acting force to rotate along the swing arm rotating shaft;
the wheel is positioned at one side of the wheel suspension swing arm.
2. The soft object carrier platform for automotive testing of claim 1, wherein the air suspension mechanism further comprises a fixed limit screw on a fixed plate of the support frame and a limit groove on the wheel suspension swing arm corresponding to the limit screw.
3. The soft object carrying platform for automobile test according to claim 2, wherein the steering module comprises a steering knuckle between an upper swing arm and a lower swing arm of a wheel suspension swing arm, a first driving motor for driving the steering knuckle to rotate, and a connecting rod mechanism connected with one end of an output shaft of the first driving motor, and the other end of the connecting rod mechanism is connected with one side of the steering knuckle;
The steering knuckle is connected with the upper swing arm and the lower swing arm of the wheel suspension swing arm through a steering main pin so that the steering axle center of the steering knuckle rotates along the steering main pin;
one side of the steering knuckle is connected with the wheels.
4. A soft object carrying platform for automobile test according to claim 3, wherein the driving module comprises a driving motor and a gear reduction box connected with the driving motor, and the gear reduction box is connected with the steering knuckle through a universal joint through an output shaft.
5. The soft object carrying platform for automobile test of claim 4, wherein the other ends of the output shafts of the driving modules of the two front wheels and the two rear wheels are connected with the brake device.
6. The soft object carrying platform for automobile test according to claim 1 to 5, wherein,
The carrying platform is provided with two or more hinges.
7. A soft object carrier platform for automotive testing according to claim 6, characterized in that the number of hingedly connected carrier platforms is 2 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323656289.6U CN222006371U (en) | 2023-12-31 | 2023-12-31 | A soft target carrying platform for automobile testing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323656289.6U CN222006371U (en) | 2023-12-31 | 2023-12-31 | A soft target carrying platform for automobile testing |
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| Publication Number | Publication Date |
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| CN222006371U true CN222006371U (en) | 2024-11-15 |
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| CN202323656289.6U Active CN222006371U (en) | 2023-12-31 | 2023-12-31 | A soft target carrying platform for automobile testing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117566364A (en) * | 2023-12-31 | 2024-02-20 | 苏州诚钜汽车科技有限公司 | A soft target carrying platform for automobile testing |
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- 2023-12-31 CN CN202323656289.6U patent/CN222006371U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117566364A (en) * | 2023-12-31 | 2024-02-20 | 苏州诚钜汽车科技有限公司 | A soft target carrying platform for automobile testing |
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