Vehicle simulation test device and vehicle simulation test system

Abstract

The present application relates to a vehicle simulation test device and a vehicle simulation test system, and belongs to the field of vehicle testing technology. In the vehicle simulation test device, the load-bearing plate is arranged relative to the frame body and is slidably connected to the column; the lifting mechanism is connected to the load-bearing plate and is transmission-connected to the column, and the lifting mechanism is used to drive the load-bearing plate to move in the direction of approaching or away from the frame body; in the driving assembly, the driving member body is rotationally connected to the frame body, the driving wheel and the driven wheel are rotationally connected to the driving member body respectively, and a plurality of load-bearing rollers are arranged at intervals between the driving wheel and the driven wheel, the first drive motor is transmission-connected to the driving wheel, the transmission belt is mounted on the driving wheel, the driven wheel, and the plurality of load-bearing rollers, and the second drive motor is used to drive the driving member body to rotate. By adopting the present application, the vehicle simulation test device can simulate richer working conditions, and thus the measured vehicle performance data is more comprehensive.

Description

Technical Field

[0001] The present application relates to the field of vehicle testing technology, and in particular to a vehicle simulation testing device and a vehicle simulation testing system. Background Art

[0002] Simulation test benches are widely used in vehicle testing. By evaluating and testing vehicles on simulation test benches, we can make an intuitive evaluation of the vehicle's performance, safety and driving experience.

[0003] Currently, automotive simulation test benches typically use fixed structures and are primarily used to test vehicles under ideal operating conditions, such as straight-line acceleration, constant speed driving, or deceleration and braking. However, simulation test benches cannot meet the requirements for complex operating conditions. Summary of the Invention

[0004] The present application provides a vehicle simulation test device and a vehicle simulation test system, which can solve the technical problems existing in the related art. The technical solutions of the vehicle simulation test device and the vehicle simulation test system are as follows:

[0005] In a first aspect, the present application provides a vehicle simulation test device, the vehicle simulation test device comprising a frame, a load-bearing plate, a lifting mechanism, and a plurality of drive components;

[0006] The frame includes a connected frame body and columns;

[0007] The supporting plate is arranged opposite to the frame body and is slidably connected to the column, and the supporting plate has a plurality of avoidance holes;

[0008] The lifting mechanism is connected to the carrying plate and is in transmission connection with the column, and the lifting mechanism is used to drive the carrying plate to move toward or away from the frame body;

[0009] The multiple driving components are respectively located on one side of the frame body close to the supporting plate, and each driving component is arranged opposite to one of the avoidance holes. The driving components include a driving member body, a driving wheel, a driven wheel, a plurality of supporting rollers, a first driving motor, a transmission belt and a second driving motor. The driving member body is rotatably connected to the frame body, and the rotation axis of the driving member body is perpendicular to the frame body. The driving wheel and the driven wheel are respectively rotatably connected to the driving member body, and the multiple supporting rollers are arranged at intervals between the driving wheel and the driven wheel. The first driving motor is connected to the driving wheel for transmission, and the transmission belt is mounted on the driving wheel, the driven wheel and the plurality of supporting rollers. The second driving motor is used to drive the driving member body to rotate.

[0010] In a possible implementation, the bottom of the driving member body has a gear ring structure;

[0011] An adjusting gear is sleeved on the output shaft of the second driving motor, and the adjusting gear is meshed with the gear ring structure.

[0012] In a possible implementation, the drive assembly further includes a first adjustment mechanism, which includes a first telescopic member, a support member, and a universal joint;

[0013] The driving member body has a plurality of mounting slots inside, the bearing roller is located at the slot opening of the mounting slot, and the first telescopic member is fixed in the mounting slot;

[0014] The support member is located in the mounting groove and is transmission-connected to the first telescopic member;

[0015] The universal joint is connected to the support member and the load-bearing roller respectively.

[0016] In a possible implementation, the drive assembly further includes a second adjustment mechanism, which includes a tension wheel, a third drive motor, a screw rod, a buffer frame, and an elastic member;

[0017] The tension wheel is in contact with the transmission belt, and the end of the tension wheel has an abutment boss, and the abutment boss has a through-hole structure;

[0018] The third driving motor is connected to the driving member body;

[0019] One end of the screw rod is connected to the output shaft of the third drive motor, and the other end of the screw rod passes through the through hole structure;

[0020] The buffer rack is in transmission connection with the screw rod and is capable of moving along the axial direction of the screw rod;

[0021] The elastic member is located between the abutting boss and the buffer frame, and two ends of the elastic member are respectively abutted against the abutting boss and the buffer frame.

[0022] In a possible implementation, the lifting mechanism includes a lifting motor and a lifting gear, the lifting motor is connected to the carrying plate, and the lifting gear is connected to the output shaft of the lifting motor;

[0023] The column is provided with a rack structure, which extends in a vertical direction and meshes with the lifting gear.

[0024] In a possible implementation, the vehicle simulation test device further includes a slope adjustment assembly, wherein the slope adjustment assembly includes a plurality of spherical joints, a plurality of second telescopic members, and a mounting bracket;

[0025] The frame body has a plurality of connecting parts;

[0026] Both ends of each second telescopic member are connected to the connecting portion and the mounting frame via a spherical joint.

[0027] In a possible implementation, the vehicle simulation test device further includes a road simulation frame having a receiving cavity for receiving the slope adjustment assembly.

[0028] In a possible implementation, the vehicle simulation test device further includes an obstacle simulation component, wherein the obstacle simulation component includes a traveling guide frame, a translation guide frame, and a simulation target;

[0029] The traveling guide frame extends along a first direction;

[0030] The translation guide frame extends along a second direction, and the translation guide frame is slidably connected to the travel guide frame, and the second direction is perpendicular to the first direction;

[0031] The simulation target is slidably connected to the translation guide frame.

[0032] In a second aspect, the present application provides a vehicle simulation test system, which includes a closed simulation chamber and a vehicle simulation test device as in the first aspect and its possible implementation methods, wherein the closed simulation chamber is used to accommodate the vehicle simulation test device.

[0033] In a possible implementation, the vehicle simulation test system further includes a weather simulation component, which includes a fan, a light simulation lamp, a liquid storage tank, a liquid delivery mechanism, and a nozzle;

[0034] The fan is connected to the closed simulation chamber, and the fan is arranged opposite to the vehicle simulation test device;

[0035] The light simulation lamp is fixed in the closed simulation chamber and is used to simulate light at different time periods;

[0036] The liquid storage tank is located outside the closed simulation chamber;

[0037] The liquid conveying mechanism is in communication with the liquid storage tank;

[0038] The nozzle is located in the closed simulation chamber and fixed on the top of the closed simulation chamber. The nozzle is communicated with the liquid delivery mechanism.

[0039] The technical solution provided by this application includes at least the following beneficial effects:

[0040] The present application provides a vehicle simulation test device, for which the vehicle to be tested can be driven onto a load-bearing plate, and then the lifting mechanism drives the load-bearing plate to move in the direction of the frame body, so that the drive assembly extends through the avoidance hole to the upper surface of the load-bearing plate, so that the drive assembly contacts the corresponding wheel, and then the first drive motor drives the active wheel to rotate, and with the help of the driven wheel and a plurality of load-bearing rollers, the upper part of the transmission belt is driven to perform translational motion, so that the vehicle can maintain a driving state in the vehicle simulation test device. The above-mentioned drive component body can be driven to rotate by the second drive motor to simulate the turning condition and test the various performance data of the vehicle under the turning condition. Compared with the simulation test bench in the related art that can only simulate straight-line acceleration, uniform speed driving or deceleration braking to test the vehicle, the above-mentioned vehicle simulation test device can simulate richer working conditions, and thus, the vehicle performance data measured using the above-mentioned vehicle simulation test device is more comprehensive.

[0041] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0043] Figure 1 1 is a schematic structural diagram of a vehicle simulation test device shown in an embodiment of the present application;

[0044] Figure 2 This is a schematic structural diagram of a drive assembly shown in an embodiment of the present application;

[0045] Figure 3 This is a schematic structural diagram of a drive assembly shown in an embodiment of the present application;

[0046] Figure 4 This is a schematic structural diagram of a drive assembly shown in an embodiment of the present application;

[0047] Figure 5 1 is a schematic structural diagram of a vehicle simulation test device shown in an embodiment of the present application;

[0048] Figure 6 1 is a schematic structural diagram of a vehicle simulation test device shown in an embodiment of the present application;

[0049] Figure 7 1 is a schematic structural diagram of a vehicle simulation test device shown in an embodiment of the present application;

[0050] Figure 8 is a structural diagram of an obstacle simulation component shown in an embodiment of the present application;

[0051] Figure 9 Schematic diagram of a vehicle simulation test system according to an embodiment of the present application;

[0052] Figure 10 Schematic diagram of a vehicle simulation test system according to an embodiment of the present application;

[0053] Figure 11 is a structural diagram of a simulation target shown in an embodiment of the present application;

[0054] Figure 12 It is a structural schematic diagram of a vehicle simulation test device shown in an embodiment of the present application.

[0055] Legend

[0056] 1. Frame;

[0057] 11. Frame body; 12. Column;

[0058] 111. Connecting portion; 121. Rack structure;

[0059] 2. Loading plate;

[0060] 21. Avoidance hole;

[0061] 3. Lifting mechanism;

[0062] 31. Lifting motor; 32. Lifting gear;

[0063] 4. Drive components;

[0064] 41. Driving member body; 42. Driving wheel; 43. Driven wheel; 44. Load-bearing roller; 45. First driving motor; 46. Transmission belt; 47. Second driving motor; 48. First adjustment mechanism; 49. Second adjustment mechanism;

[0065] 410, gear ring structure; 411, mounting slot; 471, adjustment gear; 481, first telescopic member; 482, support member; 483, universal joint; 491, tension pulley; 492, third drive motor; 493, lead screw; 494, buffer frame; 495, elastic member;

[0066] 4101, carrier frame; 4102, plate body; 4111, slide groove structure; 4911, abutment boss; 4941, threaded hole structure;

[0067] 49110, through-hole structure;

[0068] 5. Slope adjustment component;

[0069] 51. Spherical joint; 52. Second telescopic member; 53. Mounting bracket;

[0070] 6. Road simulation frame;

[0071] 61. chassis; 62. guide plate;

[0072] 601, accommodating cavity;

[0073] 7. Obstacle simulation component;

[0074] 71. Traveling guide frame; 72. Translation guide frame; 73. Simulated target;

[0075] 711, first frame; 712, first traction rope; 713, first pulley; 714, first traction motor; 721, second frame; 722, second traction rope; 723, second pulley; 724, second traction motor; 731, slide rail connector; 732, simulated target body; 733, fixing pin;

[0076] 7211, first connecting mechanism; 7311, snap-fitting groove; 7321, snap-fitting block; 7322, rotating shaft; 7323, simulated target mounting bracket; 7324, simulated target inflatable airbag;

[0077] 73210, pin hole;

[0078] 300, turntable structure;

[0079] 400, wind speed sensor;

[0080] 500, light sensor;

[0081] 100. Close the simulation warehouse;

[0082] 101. Arched support frame; 102. Curved screen; 103. Wall;

[0083] 1011, sliding guide rail;

[0084] 200, weather simulation component;

[0085] 201, fan; 202, light simulation lamp; 203, liquid storage tank; 204, liquid delivery mechanism; 205, nozzle; 206, laser transmitter; 207, laser receiver;

[0086] 2021. Lamp mounting frame; 2022. Lamp body;

[0087] 2041. Delivery pipe; 2042. Solenoid valve; 2051. Rain-making nozzle; 2052. Atomizing nozzle. DETAILED DESCRIPTION

[0088] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0089] The terms used in the detailed description of this application are intended solely to illustrate the embodiments of this application and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used herein should have the same ordinary meaning as those understood by persons of ordinary skill in the art to which this application belongs. The terms "first," "second," "third," and similar terms used in this patent specification and claims do not denote any order, quantity, or importance, but are merely used to distinguish between different components. Similarly, terms such as "a" or "an" do not denote a limitation of quantity, but rather denote the presence of at least one. Terms such as "include" or "comprising" and similar terms mean that the elements or objects listed before "include" or "comprising" include the elements or objects listed after "include" or "comprising," and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used solely to indicate relative positions. When the absolute position of the described objects changes, the relative positions may also change accordingly.

[0090] The embodiment of the present application provides a vehicle simulation test device, which can simulate complex working conditions, thereby testing the vehicle under complex working conditions and obtaining various data of the vehicle under complex working conditions. Figure 1 As shown, the vehicle simulation test device includes a frame 1 , a carrying plate 2 , a lifting mechanism 3 and a plurality of driving components 4 .

[0091] The frame 1 includes a connected frame body 11 and columns 12. A support plate 2 is arranged opposite the frame body 11 and is slidably connected to the columns 12. The support plate 2 has multiple escape holes 21. A lifting mechanism 3 is connected to the support plate 2 and is in transmission connection with the columns 12. The lifting mechanism 3 is used to drive the support plate 2 toward or away from the frame body 11. Multiple drive components 4 are respectively located on one side of the frame body 11 close to the supporting plate 2, and each drive component 4 is arranged opposite to an avoidance hole 21. The drive component 4 includes a drive body 41, a driving wheel 42, a driven wheel 43, a plurality of supporting rollers 44, a first drive motor 45, a transmission belt 46 and a second drive motor 47. The drive body 41 is rotatably connected to the frame body 11, and the rotation axis of the drive body 41 is perpendicular to the frame body 11. The driving wheel 42 and the driven wheel 43 are respectively rotatably connected to the drive body 41, and a plurality of supporting rollers 44 are arranged at intervals between the driving wheel 42 and the driven wheel 43. The first drive motor 45 is connected to the driving wheel 42 for transmission, and the transmission belt 46 is mounted on the driving wheel 42, the driven wheel 43 and the plurality of supporting rollers 44. The second drive motor 47 is used to drive the above-mentioned drive body 41 to rotate.

[0092] Specifically, see Figure 1 The vehicle simulation test device can include four drive assemblies 4. Accordingly, the carrier plate 2 has four avoidance holes 21, and the four drive assemblies 4 correspond to the four wheels of the vehicle body. Of course, for vehicles with other numbers of wheels, the vehicle simulation test device can be equipped with a corresponding number of drive assemblies 4 to perform simulation tests on the vehicle.

[0093] Specifically, the driving member body 41 includes a base, two first vertical connectors, two second vertical connectors and a transverse connector. The base has a cylindrical structure or a truncated cone structure and is rotatably connected to the frame body 11. The top surface of the base has two mounting seats. The two first vertical connectors are arranged at intervals and are connected to one of the mounting seats respectively. The two second vertical connectors are arranged at intervals and are connected to the other mounting seats respectively. The transverse connector has an I-shaped block structure. Each end of the transverse connector has an avoidance space. These two avoidance spaces are used to provide installation space for the driving wheel 42 and the driven wheel 43 respectively. The two ends of the transverse connector are respectively connected to the first vertical connector and the second vertical connector. A plurality of load-bearing rollers 44 are respectively located on the top surface of the transverse connector and can rotate relative to the transverse connector.

[0094] In one example, Figure 2 As shown, a turntable structure 300 is provided below the base, and the turntable structure is rotatably connected to the frame body 11 .

[0095] Using the technical solution provided in the embodiments of this application, such as Figure 1 and12 As shown, the vehicle to be tested can be driven onto the load-bearing plate 2, and then the lifting mechanism 3 drives the load-bearing plate 2 to move toward the frame body 11, so that the drive assembly 4 extends through the avoidance hole to the upper surface of the load-bearing plate 2, so that the drive assembly 4 contacts the corresponding wheel, and then the first drive motor 45 drives the active wheel 42 to rotate, and with the help of the driven wheel 43 and multiple load-bearing rollers 44, the upper part of the transmission belt 46 is driven to move in translation, so that the vehicle can maintain the driving state in the vehicle simulation test device. The second drive motor 47 can drive the above-mentioned drive component body 41 to rotate, simulating the turning condition, and testing the various performance data of the vehicle under the turning condition. Compared with the simulation test bench in the related art that can only simulate straight-line acceleration, constant speed driving or deceleration braking to test the vehicle, the above-mentioned vehicle simulation test device can simulate more abundant working conditions, and thus, the vehicle performance data measured using the above-mentioned vehicle simulation test device is more comprehensive.

[0096] In some examples, the lifting mechanism 3 controls the movement of the carrying plate 2 by gear meshing.

[0097] like Figure 1 As shown, the lifting mechanism 3 includes a lifting motor 31 and a lifting gear 32. The lifting motor 31 is connected to the supporting plate 2, and the lifting gear 32 is connected to the output shaft of the lifting motor 31. The column 12 has a rack structure 121, which extends in the vertical direction and meshes with the lifting gear 32.

[0098] In some possible embodiments, the driving member body 41 is rotated by gear transmission.

[0099] like Figure 2 As shown, the bottom of the driving member body 41 has a gear ring structure 410 , and the output shaft of the second driving motor 47 is sheathed with an adjusting gear 471 , which is meshed with the gear ring structure 410 .

[0100] In practice, the output shaft of the second drive motor 47 rotates forward, which can cause the drive member body 41 to rotate around a first circumferential direction. The output shaft of the second drive motor 47 rotates reversely, which can cause the drive member body 41 to rotate around a second circumferential direction, which is opposite to the first circumferential direction.

[0101] In combination with the previous example, the driving member body 41 includes a base, two first vertical connecting members, two second vertical connecting members and a transverse connecting member, and the gear ring structure 410 can be located on the outer ring of the base. Furthermore, the output shaft of the second driving motor 47 rotates, driving the base to rotate.

[0102] See also Figure 4The transverse connecting member includes a supporting frame 4101 and a plate 4102 connected to each other. The supporting frame 4101 is rotatably connected to the driving wheel 42 and the driven wheel 43 respectively. The central portion of the supporting frame 4101 has an air-proof area. The plate 4102 is located in the air-proof area and is connected to the supporting frame 4101.

[0103] In some possible embodiments, the driving assembly 4 further includes a first adjustment mechanism 48 , which is used to adjust the ruggedness of the vehicle simulation test device.

[0104] like Figure 3 As shown, the first adjustment mechanism 48 includes a first telescopic member 481, a support member 482, and a universal joint 483. The driver body 41 has multiple mounting slots 411 within it. The load-bearing rollers 44 are located at the notches of the mounting slots 411, and the first telescopic member 481 is fixed within the mounting slots 411. The support member 482 is located within the mounting slots 411 and is in driving connection with the first telescopic member 481. The universal joint 483 is connected to the support member 482 and the load-bearing rollers 44, respectively.

[0105] Specifically, the top surface of the transverse connector has multiple mounting slots 411. The fixed end of the first telescopic member 481 is fixedly connected to the bottom of the mounting slot 411, and the movable end of the first telescopic member 481 can move in the depth direction of the mounting slot 411. The support member 482 is located on the side of the first telescopic member 481 away from the bottom of the slot and is connected to the movable end of the first telescopic member 481. The universal joint 483 is located outside the notch of the mounting slot 411 and is connected to the side of the support member 482 closer to the notch. The end of the load-bearing roller 44 is rotatably connected to the universal joint 483.

[0106] Optionally, the sidewall of the installation groove 411 may be provided with a slide groove structure 4111, and the support member 482 is slidably connected to the slide groove structure 4111. In this way, the movement stability of the support member 482 in the installation groove 411 can be improved.

[0107] Furthermore, each mounting slot 411 may be provided with two first telescopic members 481 and two support members 482. The two first telescopic members 481 are distributed on both sides of the first mounting slot 411 in the longitudinal direction and are respectively connected to the bottom of the mounting slot 411. Each support member 482 is connected to a first telescopic member 481. Accordingly, two universal joints 483 are provided for each mounting slot 411. Each universal joint 483 is connected to the top surface of a support member 482. The two ends of each load-bearing roller 44 are respectively rotatably connected to the two universal joints 483.

[0108] In this way, both ends of the load-bearing roller 44 are supported, which can improve the load-bearing capacity of the load-bearing roller 44.

[0109] In one example, the vehicle simulation test device further includes a control unit, which is electrically connected to the plurality of first telescopic members 481 , respectively, and is configured to control the extension lengths of the movable ends of the plurality of first telescopic members 481 .

[0110] During implementation, through the control unit, the movable end of the first telescopic member 481 arranged in different installation grooves 411 can be extended to different lengths, so that multiple support members 482 are staggered in the vertical direction, thereby making the contact surface between the transmission belt 46 and the wheel more uneven, thereby increasing the ruggedness of the vehicle simulation test device.

[0111] On the other hand, the first adjustment mechanism 48 can also adjust the slope of the vehicle simulation test device.

[0112] For example, in the direction from the driving wheel 42 to the driven wheel 43, the extended length of the movable ends of the multiple first telescopic members 481 can gradually increase, so that the overall slope of the drive assembly 4 gradually increases. In this case, the vehicle simulation test device can simulate an uphill operating condition. Alternatively, in the direction from the driving wheel 42 to the driven wheel 43, the extended length of the movable ends of the multiple first telescopic members 481 can gradually decrease, so that the overall slope of the drive assembly 4 gradually decreases. In this case, the vehicle simulation test device can simulate a downhill operating condition.

[0113] For example, in a direction perpendicular to the driving wheel 42 to the driven wheel 43, for the two first telescopic members 481 disposed in each mounting slot 411, the extended length of the movable end of the first telescopic member 481 proximal to the second drive motor 47 can be greater or less than the extended length of the movable end of the first telescopic member 481 distal to the second drive motor 47. In this case, the vehicle simulation test device can simulate a curve. It will be appreciated that for the two first telescopic members 481 disposed in each mounting slot 411, the difference in the extended length of the movable ends of the two first telescopic members 481 can be equal or unequal.

[0114] By adopting the technical solution provided in the embodiment of the present application, the control unit controls the extension length of the movable ends of multiple first telescopic parts 481, so that the drive component 4 can be adjusted to different slopes to simulate uphill conditions, downhill conditions or curved conditions, thereby testing the performance of the vehicle at different slopes.

[0115] In some examples, the two first vertical connectors and the two second vertical connectors are rotatably connected to the mounting base, respectively, so that the angle between the first vertical connector and the second vertical connector is adjustable.

[0116] In some possible embodiments, the driving assembly 4 further includes a second adjustment mechanism 49 , which is used to adjust the simulated road conditions of the vehicle simulation test device.

[0117] like Figure 4 As shown, the second adjustment mechanism 49 includes a tension wheel 491 , a third drive motor 492 , a screw rod 493 , a buffer frame 494 and an elastic member 495 .

[0118] The tension wheel 491 is in contact with the transmission belt 46. The end of the tension wheel 491 has an abutment boss 4911, and the abutment boss 4911 has a through-hole structure 49110. The third drive motor 492 is connected to the drive member body 41. One end of the screw rod 493 is connected to the output shaft of the third drive motor 492, and the other end of the screw rod 493 passes through the through-hole structure 49110. The buffer frame 494 is in transmission connection with the screw rod 493 and can move along the axial direction of the screw rod 493. The elastic member 495 is located between the abutment boss 4911 and the buffer frame 494, and its two ends are respectively abutted against the abutment boss 4911 and the buffer frame 494.

[0119] Specifically, if Figure 2 and Figure 4 As shown, the tension pulley 491 has a cylindrical structure, with its axis parallel to the axis of the driven pulley 43. Each end of the tension pulley 491 has an abutment boss 4911, each having a through-hole structure 49110. The axis of the through-hole structure 49110 is parallel to the output shaft of the second drive motor 47. A third drive motor 492 is fixedly connected to each side of the transverse connector. The output shaft of each third drive motor 492 is coaxially arranged with a through-hole structure 49110. Accordingly, the second adjustment mechanism 49 includes two screw rods 493, each connected to the output shaft of a third drive motor 492. The elastic member 495 can be a spring, with a spring ring sleeved outside the screw rod 493.

[0120] Furthermore, the buffer frame 494 is a rectangular frame. Two opposing edges of the buffer frame 494 are provided with threaded hole structures 4941, the internal threads of which mate with the external threads of the screw rod 493. In practice, a control unit is electrically connected to the two third drive motors 492, controlling the output shafts of the two third drive motors 492 to rotate in the same direction and at the same speed. Through threaded engagement, the control unit controls the vertical movement of the buffer frame 494 (i.e., the axial direction of the screw rod 493), thereby adjusting the compressive force exerted by the abutting boss 4911 on the elastic member 495. As will be readily understood, as the buffer frame 494 gradually moves downward, the tension wheel 491 correspondingly moves downward, thereby gradually tightening the transmission belt 46. As the buffer frame 494 gradually moves upward, the tension wheel 491 correspondingly moves upward, thereby gradually loosening the transmission belt 46. Furthermore, by tightening or loosening the transmission belt 46, the surface roughness of the transmission belt 46 can be varied to simulate road conditions such as cement roads, asphalt roads, and sandy roads.

[0121] In some examples, the control unit is electrically connected to each of the two third drive motors 492 and can control the output shafts of the two third drive motors 492 to rotate in the same direction but at different speeds. Thus, within a unit of time, the two ends of the buffer frame 494 move downward by different distances. Accordingly, the tension on each side of the transmission belt 46 varies, thereby simulating different road conditions on each side of the transmission belt.

[0122] In some examples, the second adjustment mechanism 49 further includes a sleeve, which is sleeved on the outside of the screw rod 493 and is located in the through-hole structure 49110 and is slidably connected to the through-hole structure 49110. In this way, the external thread of the screw rod 493 can be prevented from scratching the inner wall of the through-hole structure 49110.

[0123] By adopting the technical solution provided in the embodiment of the present application, the control unit controls the extension length of the movable ends of multiple first telescopic parts 481, so that the drive component 4 can be adjusted to different slopes to simulate uphill conditions, downhill conditions or curved conditions, thereby testing the performance of the vehicle at different slopes.

[0124] In some possible embodiments, the vehicle simulation test device further includes a slope adjustment component 5, such as Figure 5 As shown, the slope adjustment assembly 5 includes a plurality of spherical joints 51 , a plurality of second telescopic members 52 and a mounting bracket 53 .

[0125] Specifically, the frame body 11 has a plurality of connecting parts 111, such as Figure 5 As shown, the frame body 11 has a rectangular plate structure, and the four top corners of the frame body 11 respectively have a connecting part 111. The second telescopic member 52 includes a slidingly connected sleeve and a telescopic rod. The sleeve is connected to the mounting frame 53 through a spherical joint 51, and the end of the telescopic rod away from the sleeve is connected to the connecting part 111 through a spherical joint 51.

[0126] In practice, the control unit is electrically connected to the plurality of second telescopic members 52, see Figure 5 and Figure 7, the control unit can control the telescopic rods of the two second telescopic members 52 located on the front side of the vehicle body to extend to a first length L1, and control the telescopic rods of the two second telescopic members 52 located on the rear side of the vehicle body to extend to a second length L2, wherein L1>L2, so that the front side of the frame body 11 tilts up to simulate an uphill working condition. Alternatively, the control unit can control the telescopic rods of the two second telescopic members 52 located on the front side of the vehicle body to extend to a third length L3, and control the telescopic rods of the two second telescopic members 52 located on the rear side of the vehicle body to extend to a fourth length L4, wherein L3 is less than L4, so that the rear side of the frame body 11 tilts up to simulate a downhill working condition. Of course, the control unit can control the telescopic rods of the two second telescopic members 52 located on the left side of the vehicle body to extend to a fifth length L5, and control the telescopic rods of the two second telescopic members 52 located on the right side of the vehicle body to extend to a sixth length L6, wherein L5>L6, so that the left side of the frame body 11 tilts up to simulate a curved working condition.

[0127] By adopting the technical solution provided in the embodiment of the present application, the control unit controls the extension length of the telescopic rods of multiple second telescopic members 52, so that the frame body 11 can be adjusted to different slopes to simulate uphill conditions, downhill conditions or curved conditions, thereby testing the performance of the vehicle at different slopes.

[0128] Exemplarily, the first telescopic member 481 and the second telescopic member 52 may both be hydraulic telescopic members.

[0129] In some possible embodiments, the vehicle simulation test device further includes a road simulation frame 6 .

[0130] like Figure 6 As shown, the road simulation frame 6 has a receiving cavity 601 , and the receiving cavity 601 is used to receive the slope adjustment component 5 .

[0131] See also Figure 5 and Figure 6 The road simulation frame 6 includes a base frame 61 and a guide plate 62. The base frame 61 has a receiving cavity 601. The mounting frame 53 of the slope adjustment assembly 5 is located in the receiving cavity 601 and is connected to the base frame 61. The second telescopic member 52 at least partially protrudes from the top surface of the base frame 61. One end of the guide plate 62 is connected to the top surface of the base frame 61, and the other end is smoothly connected to the supporting plate 2.

[0132] During implementation, the vehicle can travel onto the carrying plate 2 via the guide plate 62 to perform subsequent simulation tests.

[0133] In some possible embodiments, the vehicle simulation test device further includes an obstacle simulation component 7 .

[0134] See also Figure 7 and Figure 8The obstacle simulation component 7 includes a traveling guide frame 71, a translation guide frame 72 and a simulation target 73; the traveling guide frame 71 extends along a first direction; the translation guide frame 72 extends along a second direction, and the translation guide frame 72 is slidingly connected to the traveling guide frame 71, and the second direction is perpendicular to the first direction; the simulation target 73 is slidingly connected to the translation guide frame 72.

[0135] Specifically, if Figure 8 As shown, the traveling guide frame 71 includes a first frame body 711, a first traction rope 712, two first pulleys 713 and a first traction motor 714. The first frame body 711 is arranged on the top surface of the base frame 61. The two first pulleys 713 are distributed on both sides of the first frame body 711 and are rotatably connected to the first frame body 711. The first traction rope 712 is mounted outside the two first pulleys 713, and the first traction motor 714 is transmission-connected to one of the first pulleys 713.

[0136] In implementation, the first traction motor 714 drives the first pulley 713 to rotate, thereby driving the first traction rope 712 to translate and slide along the first direction on the top surface of the first frame 711 .

[0137] Furthermore, the translation guide frame 72 includes a second frame 721, a second traction rope 722, two second pulleys 723, and a second traction motor 724. The bottom surface of the second frame 721 has a first connecting structure 7211, which is fastened to the first frame 711 and slidably connected to the first frame 711. The second frame 721 is fixedly connected to the first traction rope 712. The two second pulleys 723 are distributed on both sides of the second frame 721 and are rotationally connected to the second frame 721. The second traction rope 722 is mounted outside the two second pulleys 723, and the second traction motor 724 is transmission-connected to one of the second pulleys 723. The bottom of the simulated target 73 also has a first connecting structure 7211, which is fastened to the second frame 721 and slidably connected to the second frame. The simulated target 73 is fixedly connected to the second traction rope 722.

[0138] In practice, the first traction motor 714 drives the first pulley 713 to rotate, thereby driving the first traction rope 712 to slide and translate on the top surface of the first frame 711, driving the second frame 721 to move in the first direction. The second traction motor 724 drives the second pulley 723 to rotate, thereby driving the second traction rope 722 to slide and translate on the top surface of the second frame 721 in the second direction, thereby driving the simulated target 73 to move in the second direction. In other words, by driving the first traction motor 714 and the second traction motor 724, the simulated target 73 can be driven to move in the first direction and the second direction, respectively.

[0139] For example, the number of the traveling guide frames 71 can be multiple, such as Figure 8 As shown, the obstacle simulation component 7 includes three traveling guide frames 71, which are spaced apart in the second direction. Accordingly, the bottom surface of the second frame 721 has three first connecting structures 7211, and each first connecting structure 7211 is slidably connected to a first frame 711 respectively.

[0140] In this way, the installation stability of the translation guide frame 72 can be improved.

[0141] For some examples, see Figure 11 The simulated target 73 includes a slide rail connecting seat 731, a simulated target body 732 and a fixing pin 733. A second connecting structure is provided below the slide rail connecting seat 731, and the second connecting structure is engaged with the second frame 721. A clamping groove 7311 is provided above the slide rail connecting seat 731. The simulated target body 732 includes a clamping block 7321, a rotating shaft 7322, a simulated target mounting frame 7323 and a simulated target inflatable airbag 7324. The shape and size of the clamping block 7321 are respectively adapted to the clamping groove 7311. The clamping block 7321 has a pin hole 73210. Correspondingly, the slide rail connecting seat 731 has a pin hole (not shown in the figure). The rotating shaft 7322 is located on the top surface of the clamping block 7321 and is rotatably connected. The simulated target mounting frame 7323 is connected to the top surface of the rotating shaft 7322. The simulated target inflatable airbag 7324 is detachably connected to the simulated target mounting frame 7323. The fixing pin 733 passes through the pin hole on the slide rail connecting base 731 and the pin hole 73210 on the clamping block 7321 respectively, thereby clamping the slide rail connecting base 731 and the clamping block 7321 together.

[0142] In this way, the assembly efficiency of the simulated target 73 can be improved.

[0143] During implementation, the simulated target inflatable airbag 7324 can be used to simulate a three-dimensional corresponding target, thereby conducting a simulation test of the vehicle's intelligent driving performance. Compared with a flat-panel model, this method is lighter, easier to carry and replace, and has a higher overall realism. It can reduce the load on the traction equipment and make it respond faster. At the same time, the shape and size of the simulated target inflatable airbag 7324 can be customized as needed to simulate various types of targets, such as pedestrians, animals or obstacles.

[0144] The technical solutions provided by the embodiments of the present application include at least the following beneficial effects:

[0145] The embodiment of the present application provides a vehicle simulation test device, for which the vehicle to be tested can be driven onto the load-bearing plate 2, and then the lifting mechanism 3 drives the load-bearing plate 2 to move toward the frame body 11, so that the drive assembly 4 extends through the avoidance hole to the upper surface of the load-bearing plate 2, so that the drive assembly 4 contacts the corresponding wheel, and then the first drive motor 45 drives the driving wheel 42 to rotate, and with the help of the driven wheel 43 and multiple load-bearing rollers 44, the upper part of the transmission belt 46 is driven to move in translation, so that the vehicle can maintain a driving state in the vehicle simulation test device. The second drive motor 47 can drive the above-mentioned drive component body 41 to rotate, simulate the turning condition, and test the various performance data of the vehicle under the turning condition. Compared with the simulation test bench in the related art that can only simulate straight-line acceleration, constant speed driving or deceleration braking to test the vehicle, the above-mentioned vehicle simulation test device can simulate a richer range of working conditions, and thus, the vehicle performance data measured using the above-mentioned vehicle simulation test device is more comprehensive.

[0146] The present application also provides a vehicle simulation test system. Figure 9 As shown, the vehicle simulation test system includes a vehicle simulation test device and a closed simulation chamber 100 .

[0147] like Figure 10 As shown, the enclosed simulation chamber 100 includes multiple arched support frames 101, multiple curved screens 102, and walls 103. The arched support frames 101 are spaced apart and fixedly connected to the ground. Each curved screen 102 is located between two adjacent arched support frames 101 and connected to both arched support frames 101. The walls 103 are connected to the edge arched support frames 101. The multiple arched support frames 101, the multiple curved screens 102, and the walls 103 form a storage space for accommodating the aforementioned vehicle simulation test device.

[0148] In some possible embodiments, the vehicle simulation test system further includes a weather simulation component 200 , which includes a fan 201 , a light simulation lamp 202 , a liquid storage tank 203 , a liquid delivery mechanism 204 , and a nozzle 205 .

[0149] like Figure 10 As shown, the fan 201 is set on the wall 103, and the air outlet direction of the fan 201 is opposite to the vehicle simulation test device. The lighting simulation lamp 202 includes a lamp mounting frame 2021 and a lamp body 2022. The inner arc surface of the arch support frame 101 has a sliding guide rail 1011. The lamp mounting frame 2021 is slidably connected to the sliding guide rail 1011, and the lamp body 2022 is connected to the lamp mounting frame 2021.

[0150] Specifically, the control unit is electrically connected to the lamp mounting frame 2021 and the lamp body 2022. The control unit can control the illumination intensity of the lamp body 2022 to simulate cloudy or sunny working conditions. The control unit can also control the lamp mounting frame 2021 to slide on the sliding guide rail 1011, so that the lamp body 2022 illuminates the vehicle body at different positions on the arch support frame 101, thereby simulating the test environment at different time periods.

[0151] Accordingly, see Figure 5 The vehicle simulation test device further includes a wind speed sensor 400 and a light sensor 500. The wind speed sensor 400 and the light sensor 500 are each connected to the frame body 11 and are electrically connected to the control unit. The wind speed sensor 400 is used to detect wind speed information received by the vehicle simulation test device and transmit the wind speed information to the control unit. The control unit can adjust the speed of the fan 201 based on the received wind speed information. The light sensor 500 is used to detect light information received by the vehicle simulation test device and transmit the light information to the control unit. The control unit can adjust the light intensity of the lamp body 2022 based on the received light information.

[0152] Specifically, see Figure 10 The liquid storage tank 203 is located outside the closed simulation chamber 100. The liquid storage tank 203 is used to store liquid water. The liquid delivery mechanism 204 includes a delivery pipe 2041, a solenoid valve 2042 and a pump body (not shown in the figure). The delivery pipe 2041 is connected to the liquid storage tank 203. The solenoid valve 2042 is arranged in the delivery pipe 2041 to control the on-off of the liquid flow channel in the delivery pipe 2041. The nozzle 205 is located in the closed simulation chamber 100 and is fixed to the top of the closed simulation chamber 100. The nozzle 205 is connected to the output end of the liquid delivery mechanism 204.

[0153] During implementation, the control unit is electrically connected to the pump body and the solenoid valve 2042 respectively. The control unit is used to control the start-up of the pump body and the solenoid valve 2042, thereby pumping liquid water from the liquid storage tank 203 into the delivery pipe 2041, and conducting the liquid flow channel in the delivery pipe 2041, so that the liquid water can be sprayed to the vehicle simulation test device through the nozzle 205 to simulate rainy and foggy weather.

[0154] Furthermore, in one example, the weather simulation component 200 includes multiple rain-making nozzles 2051 and multiple atomizing nozzles 2052, and the multiple rain-making nozzles 2051 and the multiple atomizing nozzles 2052 are arranged alternately and are respectively connected to the delivery pipe 2041. The multiple rain-making nozzles 2051 and the multiple atomizing nozzles 2052 are respectively electrically connected to the control unit. The control unit can open the multiple rain-making nozzles 2051 separately to simulate rainy weather, or open the multiple atomizing nozzles 2052 separately to simulate foggy weather, or open the multiple rain-making nozzles 2051 and the multiple atomizing nozzles 2052 at the same time to simulate rainy and foggy weather.

[0155] Optionally, the weather simulation component 200 may also include a flow meter (not shown in the figure), which is electrically connected to the control unit and is used to detect the flow of liquid water in the delivery pipe 2041. Furthermore, the control unit can control the opening of the solenoid valve 2042, thereby adjusting the flow of liquid water in the delivery pipe 2041 to achieve control of rainfall intensity, fog concentration, etc.

[0156] For some examples, see Figure 10 The weather simulation component 200 also includes a laser emitter 206 and a laser receiver 207. The laser emitter 206 and the laser receiver 207 are distributed on both sides of the vehicle simulation test device and are arranged opposite to each other. The laser emitter 206 and the laser receiver 207 are electrically connected to the control unit respectively. The control unit is used to control the laser emitter 206 to send laser to the laser receiver 207 with a preset light intensity value. The laser receiver 207 is used to receive the laser, determine the target light intensity value of the received laser, and send the target light intensity value to the control unit. The control unit can determine the rainfall intensity and fog concentration inside the closed simulation chamber 100 according to the ratio of the target light intensity value to the preset light intensity value, and control the opening of the solenoid valve 2042 based on the rainfall intensity and fog concentration.

[0157] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A vehicle simulation test device, characterized in that: The vehicle simulation test device comprises a frame (1), a bearing plate (2), a lifting mechanism (3), and a plurality of drive components (4); The frame (1) comprises a frame body (11) and columns (12) connected to each other; The bearing plate (2) is arranged opposite to the frame body (11) and is slidably connected to the upright column (12); the bearing plate (2) has a plurality of avoidance holes (21); The lifting mechanism (3) is connected to the supporting plate (2) and is in transmission connection with the column (12), and the lifting mechanism (3) is used to drive the supporting plate (2) to move in a direction close to or away from the frame body (11); The plurality of drive assemblies (4) are respectively located on one side of the frame body (11) close to the supporting plate (2), and each drive assembly (4) is arranged opposite to one of the avoidance holes (21). The drive assembly (4) includes a drive body (41), a driving wheel (42), a driven wheel (43), a plurality of bearing rollers (44), a first driving motor (45), a transmission belt (46), a second driving motor (47) and a second adjustment mechanism (49). The drive body (41) is rotatably connected to the frame body (11), and the rotation axis of the drive body (41) is perpendicular to the frame body (11). The driving wheel (42) and the driven wheel (43) are respectively connected to the drive body (41). The first drive motor (45) is connected to the driving wheel (42) and the driven wheel (43) in a rotational manner. The plurality of bearing rollers (44) are arranged at intervals between the driving wheel (42) and the driven wheel (43). The first drive motor (45) is connected to the driving wheel (42) in a transmission manner. The transmission belt (46) is fitted around the driving wheel (42), the driven wheel (43) and the plurality of bearing rollers (44). The second drive motor (47) is used to drive the driving member body (41) to rotate. The second adjustment mechanism (49) includes a tension wheel (491), two third drive motors (492), two screw rods (493), a buffer frame (494), two elastic members (495) and a control unit. The tension wheel (491) is connected to the transmission belt (4 6), the two ends of the tension wheel (491) are respectively provided with an abutting boss (4911), each abutting boss (4911) is provided with a through-hole structure (49110), the two third drive motors (492) are distributed on both sides of the drive member body (41), and are respectively connected to the drive member body (41), the output shaft of each third drive motor (492) is coaxially arranged with a through-hole structure (49110), one end of each screw rod (493) is connected to the output shaft of a third drive motor (492), and the other end of each screw rod (493) passes through the through-hole structure (49110), the buffer frame (494) is a rectangular frame, and the buffer frame (494) is a rectangular frame. ) are respectively provided with threaded hole structures (4941), the internal thread of the threaded hole structure (4941) is adapted to the external thread of the screw rod (493), and the buffer frame (494) can move along the axial direction of the screw rod (493), each elastic member (495) is located between an abutting boss (4911) and a buffer frame (494), and the two ends of each elastic member (495) are respectively abutted against the abutting boss (4911) and the buffer frame (494), the control unit is respectively electrically connected to the two third drive motors (492), and the control unit can control the output shafts of the two third drive motors (492) to rotate in the same direction and at the same speed or in the same direction and at a differential speed.

2. The vehicle simulation test device according to claim 1, characterized in that: The bottom of the driving member body (41) has a gear ring structure (410); An adjusting gear (471) is sleeved on the output shaft of the second drive motor (47), and the adjusting gear (471) is meshed with the gear ring structure (410).

3. The vehicle simulation test device according to claim 1, characterized in that: The driving assembly (4) further includes a first adjustment mechanism (48), wherein the first adjustment mechanism (48) includes a first telescopic member (481), a support member (482), and a universal joint (483); The driving member body (41) has a plurality of mounting slots (411) inside, the bearing roller (44) is located at the slot opening of the mounting slot (411), and the first telescopic member (481) is fixed in the mounting slot (411); The support member (482) is located in the installation groove (411) and is in transmission connection with the first telescopic member (481); The universal joint (483) is respectively connected to the support member (482) and the bearing roller (44).

4. The vehicle simulation test device according to claim 1, characterized in that: The lifting mechanism (3) comprises a lifting motor (31) and a lifting gear (32), wherein the lifting motor (31) is connected to the supporting plate (2), and the lifting gear (32) is connected to the output shaft of the lifting motor (31); The upright column (12) is provided with a rack structure (121), the rack structure (121) extending in a vertical direction and meshing with the lifting gear (32).

5. The vehicle simulation test device according to claim 1, characterized in that: The vehicle simulation test device further comprises a slope adjustment assembly (5), wherein the slope adjustment assembly (5) comprises a plurality of spherical joints (51), a plurality of second telescopic members (52) and a mounting frame (53); The frame body (11) has a plurality of connecting parts (111); Both ends of each second telescopic member (52) are connected to the connecting portion (111) and the mounting frame (53) via a spherical joint (51).

6. The vehicle simulation test device according to claim 5, characterized in that: The vehicle simulation test device further comprises a road simulation frame (6), wherein the road simulation frame (6) has a receiving cavity (601), and the receiving cavity (601) is used to receive the slope adjustment assembly (5).

7. The vehicle simulation test device according to claim 1, characterized in that: The vehicle simulation test device further comprises an obstacle simulation component (7), wherein the obstacle simulation component (7) comprises a traveling guide frame (71), a translation guide frame (72), and a simulation target (73); The traveling guide frame (71) extends along a first direction; The translation guide frame (72) extends along a second direction, and the translation guide frame (72) is slidably connected to the travel guide frame (71), and the second direction is perpendicular to the first direction; The simulated target (73) is slidably connected to the translation guide frame (72).

8. A vehicle simulation test system, characterized in that: The vehicle simulation test system comprises a closed simulation chamber (100) and the vehicle simulation test device according to any one of claims 1 to 7, wherein the closed simulation chamber (100) is used to accommodate the vehicle simulation test device.

9. The vehicle simulation test system according to claim 8, characterized in that: The vehicle simulation test system further includes a weather simulation component (200), wherein the weather simulation component (200) includes a fan (201), a light simulation lamp (202), a liquid storage tank (203), a liquid delivery mechanism (204), and a nozzle (205); The fan (201) is connected to the closed simulation chamber (100), and the fan (201) is arranged opposite to the vehicle simulation test device; The light simulation lamp (202) is fixed in the closed simulation chamber (100) and is used to simulate light at different time periods; The liquid storage tank (203) is located outside the closed simulation chamber (100); The liquid delivery mechanism (204) is in communication with the liquid storage tank (203); The nozzle (205) is located in the closed simulation chamber (100) and is fixed to the top of the closed simulation chamber (100). The nozzle (205) is connected to the liquid delivery mechanism (204).

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