An autonomous vehicle crash testing system

Abstract

The application provides an automatic driving vehicle collision test system, and relates to the technical field of automatic driving vehicle testing.The automatic driving vehicle collision test system comprises a rack, a transverse moving mechanism, a connecting mechanism, a fixed part of the transverse moving mechanism is installed on the rack, the connecting mechanism comprises a connecting pipe, a fixed block, an elastic piece and a telescopic rod, the top of the connecting pipe is installed on the moving part of the transverse moving mechanism, the fixed block is fixedly arranged in the connecting pipe, the bottom of the telescopic rod penetrates through the fixed block and is slidably connected, and the elastic piece elastically connects the fixed block and the telescopic rod.The scheme provides a buffer distance for the reaction and shutdown of the equipment after the collision, reduces the damage of the automatic driving vehicle collision test to the vehicle and the test equipment, provides effective protection effect, and prolongs the service life of the collision vehicle body and the test vehicle.

Description

Technical Field

[0001] This invention relates to the field of autonomous vehicle testing technology, and in particular to an autonomous vehicle crash testing system. Background Technology

[0002] Autonomous vehicles are intelligent vehicles that achieve driverless operation through computer systems. The vehicle's safety decision-making and emergency braking are important indicators. When faced with a U-turn command, the test is to see if the vehicle can correctly identify oncoming vehicles and complete the U-turn. At the same time, if a collision occurs during the U-turn, the test is equally important to test the autonomous vehicle's emergency braking decision-making.

[0003] Existing crash test equipment is mainly used to conduct direct crash tests between the test equipment and autonomous vehicles. However, in scenarios where autonomous vehicles are making U-turns, in order to test whether the autonomous vehicles can safely avoid collisions and whether they can brake in time after a collision, it is not necessary to cause rigid damage to the test equipment and vehicles. Existing test equipment is prone to damage to the test equipment and autonomous vehicles after a collision.

[0004] Therefore, it is necessary to provide a crash testing system for autonomous vehicles to solve the aforementioned technical problems. Summary of the Invention

[0005] This invention provides an autonomous vehicle collision testing system, which solves the problem in related technologies that testing equipment and autonomous vehicles are easily damaged after a collision.

[0006] To solve the above-mentioned technical problems, the autonomous vehicle collision testing system provided by the present invention includes:

[0007] frame;

[0008] A lateral moving mechanism, wherein the fixed part of the lateral moving mechanism is mounted on the frame;

[0009] A connecting mechanism includes a connecting pipe, a fixing block, an elastic element, and a telescopic rod. The top of the connecting pipe is installed in the moving part of the lateral moving mechanism. The fixing block is fixed inside the connecting pipe. The bottom of the telescopic rod passes through the fixing block and is slidably connected. The elastic element elastically connects the fixing block and the telescopic rod.

[0010] The collision vehicle body includes a support cover, a sliding plate, and a protective cover. The top of the support cover is fixedly connected to the bottom of the connecting pipe. One end of the sliding plate passes through the support cover and is slidably connected. The protective cover is fixed to the other end of the sliding plate. The bottom of the telescopic rod abuts against the top of the sliding plate.

[0011] Preferably, a reset plate is fixedly provided at the rear of the frame, and the collision vehicle body further includes a limiting plate, which is fixedly provided at one end of the sliding plate;

[0012] When the collision vehicle body is in standby mode, the limiting plate abuts against the reset plate.

[0013] Preferably, the lateral movement mechanism includes a mounting box and a drive device. The mounting box is mounted on the frame, and a sliding hole is provided at the bottom of the mounting box. The drive device includes a first drive component and a transmission component. The first drive component is fixed on the mounting box, and the transmission component is rotatably mounted inside the mounting box. The drive part of the first drive component passes through the mounting box and is connected to the transmission component.

[0014] The top of the connecting pipe is slidably mounted on the mounting box through the sliding hole, and the connecting pipe is connected to the moving part of the transmission component.

[0015] Preferably, the connecting pipe has a movable hole; a locking cavity is formed between the telescopic rod and the connecting pipe; the top of the synchronous push block is fixedly connected to the moving part of the transmission component, and the bottom of the synchronous push block is inserted into the range of the locking cavity;

[0016] The top of the sliding plate is provided with a sliding groove, which is composed of a first smooth section, an inclined section and a second smooth section from right to left;

[0017] When the bottom of the telescopic rod is within the range of the first smooth section, the top of the telescopic rod and the top of the connecting pipe are on the same plane, and the synchronous push block is locked within the range of the locking cavity;

[0018] When the bottom of the telescopic rod is within the range of the second smooth section, the top of the telescopic rod disengages from the horizontal range of the movable hole, and the synchronous push block unlocks.

[0019] Preferably, a rubber cover is fitted at the bottom of the telescopic rod, and the telescopic rod abuts against the sliding plate through the rubber cover.

[0020] Preferably, the autonomous vehicle collision test system further includes a longitudinal movement mechanism, which includes a second drive member, a lead screw, and a moving frame. The second drive member is fixed on the frame, the lead screw is fixed on the drive part of the second drive member, the moving frame is threadedly connected to the lead screw, the moving frame is slidably mounted on the frame, and the top of the mounting box is fixedly connected to the bottom of the moving frame.

[0021] Preferably, two baffles are fixed on one side of the frame, and a turning area is formed between the two baffles, with the collision vehicle body located within the coverage area of ​​the baffles.

[0022] Preferably, the enclosure panel is detachably mounted on the frame by bolts.

[0023] Preferably, the sliding plate has an adjustment groove that communicates with the sliding groove. A plug-in plate is fixed on the protective cover, and a locking hole is provided on the plug-in plate. The plug-in plate is inserted into the sliding plate and slidably connected. The autonomous vehicle collision test system also includes a locking mechanism, which is installed within the range of the adjustment groove and the sliding groove. The locking mechanism includes a telescopic member, a synchronous sliding plate, a transmission rod, and a telescopic pin. Both ends of the telescopic member are fixedly connected to the sliding plate and the synchronous sliding plate. One end of the telescopic pin passes through the sliding plate and is inserted into the locking hole. Both ends of the transmission rod are respectively hinged to the other ends of the synchronous sliding plate and the telescopic pin.

[0024] Preferably, the telescopic member is an elastic support tube, and the two ends of the telescopic member are elastically connected to the sliding plate and the synchronous sliding plate, with the synchronous sliding plate aligned with the sliding range of the rubber cover.

[0025] Compared with related technologies, the autonomous vehicle collision testing system provided by this invention has the following advantages:

[0026] When the connecting pipe drives the support cover to move:

[0027] Under the action of elastic support, the elastic element stably abuts the telescopic rod against the sliding plate, forming a damping structure, increasing the friction between the support cover and the sliding plate, avoiding relative sliding between the support cover and the sliding plate when no collision occurs, and ensuring the stability of the equipment during movement and adjustment.

[0028] When the protective shield collides with the test vehicle:

[0029] The lateral movement mechanism can continue to drive the support cover to move to the left relative to the sliding plate through the connecting pipe, thereby providing a buffer distance for the reaction and shutdown of the equipment after the collision, reducing the damage to the vehicle and test equipment during autonomous vehicle collision testing, providing effective protection, and extending the service life of the collision vehicle body and the test vehicle. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 A three-dimensional diagram of a first embodiment of the autonomous vehicle collision testing system provided by the present invention;

[0032] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the entire collision vehicle body.

[0033] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;

[0034] Figure 4 for Figure 2 The enlarged schematic diagram of section B is shown below;

[0035] Figure 5 for Figure 4 A 3D view of the top structure of the connecting pipe shown;

[0036] Figure 6 for Figure 4 The diagram shown illustrates the principle of the telescopic rod in its disassembled state. Figure 6 (a) is a schematic diagram of the synchronous pusher block located within the locking cavity. Figure 6 (b) is a schematic diagram of the synchronous pusher disengaging from the locking cavity.

[0037] Figure 7 A U-turn collision test scenario diagram for the autonomous vehicle collision test system provided by the present invention;

[0038] Figure 8 A schematic diagram of the structure of a second embodiment of the autonomous vehicle collision testing system provided by the present invention;

[0039] Figure 9 for Figure 8 The diagram shows the structure with the telescopic pin in the unlocked state.

[0040] Figure 10 for Figure 8 The diagram shown is a schematic of a flexible support tube, in which... Figure 10 (a) in the diagram is a schematic diagram of the structure in which the rubber cover and the synchronous sliding plate are not in contact. Figure 10 (b) is a schematic diagram of the contact state between the rubber cover and the synchronous sliding plate. Figure 10 (c) is a schematic diagram of the structure in which the rubber cover abuts against the synchronous sliding plate.

[0041] Explanation of icon numbers:

[0042] 1. Frame; 11. Enclosure panel; 12. Reset plate;

[0043] 2. Lateral movement mechanism; 21. Mounting box; 210. Sliding hole; 22. Drive device; 221. First drive component; 222. Transmission component;

[0044] 3. Connecting mechanism; 31. Connecting pipe; 310. Movable hole; 32. Fixing block; 33. Elastic element; 34. Telescopic rod; 341. Rubber cover; 35. Synchronous push block; 300. Locking cavity;

[0045] 4. Collision vehicle body; 41. Support cover; 42. Sliding plate; 43. Protective cover; 44. Limiting plate; 420. Sliding groove; 4201. First smooth section; 4202. Inclined section; 4203. Second smooth section;

[0046] 5. Longitudinal moving mechanism; 51. Second driving component; 52. Lead screw; 53. Moving frame;

[0047] 421. Adjustment slot; 431. Connector plate; 4310. Locking hole;

[0048] 6. Locking mechanism; 61. Telescopic component; 62. Synchronous sliding plate; 63. Transmission rod; 64. Telescopic pin.

[0049] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0051] This invention provides a collision testing system for autonomous vehicles.

[0052] First embodiment: Please refer to the following: Figures 1 to 3 In a first embodiment of the present invention, the autonomous vehicle collision testing system includes:

[0053] Rack 1;

[0054] A lateral moving mechanism 2, wherein the fixing part of the lateral moving mechanism 2 is mounted on the frame 1;

[0055] The connecting mechanism 3 includes a connecting pipe 31, a fixing block 32, an elastic element 33, and a telescopic rod 34. The top of the connecting pipe 31 is installed in the moving part of the transverse moving mechanism 2. The fixing block 32 is fixed inside the connecting pipe 31. The bottom of the telescopic rod 34 passes through the fixing block 32 and is slidably connected. The elastic element 33 elastically connects the fixing block 32 and the telescopic rod 34.

[0056] The collision vehicle body 4 includes a support cover 41, a sliding plate 42, and a protective cover 43. The top of the support cover 41 is fixedly connected to the bottom of the connecting pipe 31. One end of the sliding plate 42 passes through the support cover 41 and is slidably connected. The protective cover 43 is fixed to the other end of the sliding plate 42. The bottom of the telescopic rod 34 abuts against the top of the sliding plate 42.

[0057] This equipment is mainly used during U-turn tests of autonomous vehicles.

[0058] ① Before making a U-turn, the test of oncoming vehicles is used to test whether the autonomous vehicle can stop in advance and wait for the oncoming vehicle to leave the U-turn area;

[0059] ② The test of making a U-turn and colliding with an oncoming vehicle is used to test whether the autonomous vehicle can brake safely after a collision during the U-turn process.

[0060] In this embodiment, the frame 1 is assumed to be on the opposite lane of the U-turn area, and the lateral movement mechanism 2 is used to drive the entire collision vehicle body 4 to move forward along the opposite lane.

[0061] In this embodiment, the protective cover 43 is a foam structure to increase protection during collisions.

[0062] When the connecting pipe 31 drives the support cover 41 to move:

[0063] Under the elastic support, the elastic element 33 stably abuts the telescopic rod 34 against the sliding plate 42, forming a damping structure, increasing the friction between the support cover 41 and the sliding plate 42, preventing relative sliding between the support cover 41 and the sliding plate 42 when no collision occurs, and ensuring the stability of the equipment during movement and adjustment.

[0064] When the protective shield 43 collides with the test vehicle:

[0065] The lateral movement mechanism 2 can continue to drive the support cover 41 to move to the left relative to the sliding plate 42 through the connecting pipe 31, thereby providing a buffer distance for the reaction and shutdown of the equipment after the collision, reducing the damage to the car and test equipment during the autonomous vehicle collision test, providing effective protection, and extending the service life of the collision vehicle body 4 and the test vehicle.

[0066] Please refer to the following: Figure 1 and Figure 2 The frame 1 is fixedly provided with a reset plate 12 at the rear end, and the collision vehicle body 4 also includes a limiting plate 44, which is fixedly provided at one end of the sliding plate 42.

[0067] When the collision vehicle body 4 is in standby mode, the limiting plate 44 abuts against the reset plate 12.

[0068] After the protective cover 43 collides with the test vehicle, during the process of the lateral movement mechanism 2 driving the support cover 41 and the sliding plate 42 to move to the right and reset as a whole through the connecting pipe 31, the limiting plate 44 first abuts against the reset plate 12, so that the lateral movement mechanism 2 can continue to drive the connecting pipe 31 and the support cover 41 to move to the right relative to the sliding plate 42, so as to facilitate the automatic reset of the protective cover 43 after the collision.

[0069] Please refer to the following: Figure 2 , Figure 3 and Figure 4 The lateral moving mechanism 2 includes a mounting box 21 and a driving device 22. The mounting box 21 is mounted on the frame 1. A sliding hole 210 is provided at the bottom of the mounting box 21. The driving device 22 includes a first driving member 221 and a transmission member 222. The first driving member 221 is fixed on the mounting box 21. The transmission member 222 is rotatably mounted inside the mounting box 21. The driving part of the first driving member 221 passes through the mounting box 21 and is connected to the transmission member 222.

[0070] The top of the connecting pipe 31 is slidably mounted on the mounting box 21 through the sliding hole 210, and the connecting pipe 31 is connected to the moving part of the transmission component 222.

[0071] In this embodiment, the first driving component 221 is a motor structure, which provides a power source for the operation of the transmission component 222. When the transmission component 222 is running, it drives the connecting pipe 31 to move laterally and adjust, thereby driving the entire collision vehicle body 4 to move laterally.

[0072] The connecting pipe 31 can be stably moved laterally on the mounting box 21 through the sliding hole 210, thereby synchronously driving the support cover 41 to move. The support cover 41, through the telescopic rod 34 and the sliding plate 42 in the abutment state, synchronously drives the protective cover 43 to move and adjust.

[0073] The first driving component 221 is used to drive the transmission component 222 to drive the transmission component 222. The transmission component 222 drives the support cover 41 and the sliding plate 42 to move laterally as a whole through the connecting pipe 31, thereby controlling the collision vehicle body 4 to move laterally as a whole and collide with the test vehicle during the test vehicle's turn-around.

[0074] Please refer to the following: Figure 5 and Figure 6 The connecting pipe 31 has a movable hole 310; a locking cavity 300 is formed between the telescopic rod 34 and the connecting pipe 31; the top of the synchronous push block 35 is fixedly connected to the moving part of the transmission member 222, and the bottom of the synchronous push block 35 is inserted into the range of the locking cavity 300.

[0075] The top of the sliding plate 42 is provided with a sliding groove 420, which is composed of a first smooth section 4201, an inclined section 4202 and a second smooth section 4203 from right to left.

[0076] When the bottom of the telescopic rod 34 is located within the range of the first smooth section 4201, the top of the telescopic rod 34 and the top of the connecting pipe 31 are on the same plane, and the synchronous push block 35 is locked within the range of the locking cavity 300.

[0077] When the bottom of the telescopic rod 34 is within the range of the second smooth section 4203, the top of the telescopic rod 34 disengages from the horizontal range of the movable hole 310, and the synchronous push block 35 unlocks.

[0078] In this embodiment, the connecting pipe 31 and the transmission component 222 do not directly contact each other. The transmission component 222 drives the connecting pipe 31 to move and adjust on the mounting box 21 through the synchronous push block 35.

[0079] In this embodiment, the telescopic rod 34 includes two usage states:

[0080] In the docking state, the bottom of the telescopic rod 34 is located within the range of the first smooth section 4201, the top of the telescopic rod 34 is on the same plane as the top of the connecting pipe 31, the synchronous push block 35 is inserted into the range of the locking cavity 300, and while the transmission component 222 drives the synchronous push block 35 to move, the synchronous push block 35 can drive the support cover 41 and the sliding plate 42 to move as a whole (leftward or rightward) through the telescopic rod 34 and the connecting pipe 31.

[0081] In the separated state, the bottom of the telescopic rod 34 is located within the range of the second smooth section 4203, the top of the telescopic rod 34 is retracted and out of the moving range of the synchronous push block 35, the synchronous push block 35 can move relative to the connecting pipe 31 along the movable hole 310, it will not cause the connecting pipe 31 to move to the left, but it can cause the connecting pipe 31 to move to the right.

[0082] When the protective cover 43 moves forward and collides with the test vehicle, the protective cover 43 cannot move. However, the lateral movement mechanism 2 drives the telescopic rod 34, the fixing block 32, the connecting pipe 31, and the support cover 41 in the docking state to continue moving forward as a whole. During this period, the bottom of the telescopic rod 34 enters the second smooth section 4203 from the first smooth section 4201 through the inclined section 4202. When the telescopic rod 34 is fully inside the second smooth section 4203, the elastic element 33 pushes the telescopic rod 34 downward, causing the top of the telescopic rod 34 to move downward and out of the pushing range of the synchronous push block 35, so that the telescopic rod 34 switches from the docking state to the separation state.

[0083] This facilitates the automatic separation of the connecting pipe 31 and the synchronous push block 35 when a collision occurs, preventing further squeezing damage between the collision vehicle body 4 and the test vehicle, thereby achieving the purpose of the collision test while reducing damage to the test vehicle and the collision vehicle body 4 during the test process.

[0084] Simultaneously, when the synchronous push block 35 moves to the right and resets, it can re-enter the range of the locking cavity 300 and abut against the connecting pipe 31, driving the connecting pipe 31 to move to the right and reset as a whole. During the reset process of the connecting pipe 31, the limiting plate 44 can abut against the reset plate 12 and adaptively control the telescopic rod 34 to move upward and reset, so that the telescopic rod 34 returns from the separated state to the docking state.

[0085] In a preferred embodiment, the transmission component 222 is a belt drive structure, consisting of two pulleys and a belt. The belt drive connects the two pulleys, and any one of the pulleys is fixedly connected to the driving part of the first driving component 221. The connecting pipe 31 is connected to the belt.

[0086] In another preferred embodiment, the transmission component 222 is a chain drive structure, consisting of two sprockets and a chain. The chain drive connects the two sprockets, and any one of the sprockets is fixedly connected to the driving part of the first driving component 221. The connecting pipe 31 is connected to the chain.

[0087] Please refer to it again. Figure 3 The bottom of the telescopic rod 34 is fitted with a rubber cover 341, and the telescopic rod 34 abuts against the sliding plate 42 through the rubber cover 341.

[0088] The rubber cover 341 abuts against the sliding plate 42 and forms a damping structure. When the protective cover 43 is not in direct contact with the test vehicle, the telescopic rod 34 can stably drive the sliding plate 42 to move and adjust as a whole through the rubber cover 341.

[0089] When the protective cover 43 is in direct contact with the test vehicle, the sliding plate 42 cannot move, while the telescopic rod 34 can continue to drive the rubber cover 341 to slide and adjust on the sliding plate 42, reducing damage caused by movement and collision, facilitating multiple uses of the equipment, and extending the service life of the equipment.

[0090] The rubber cover 341 increases the friction between the telescopic rod 34 and the sliding plate 42, thereby ensuring the stability of the support cover 41 when it moves the sliding plate 42 and the protective cover 43 as a whole during the test via the telescopic rod 34, and preventing the protective cover 43 from becoming loose relative to the support cover 41 when it does not collide with the test vehicle.

[0091] Please refer to it again. Figure 1 The autonomous vehicle collision test system further includes a longitudinal movement mechanism 5, which includes a second drive member 51, a lead screw 52, ​​and a moving frame 53. The second drive member 51 is fixed on the frame 1, the lead screw 52 is fixed on the drive part of the second drive member 51, the moving frame 53 is threadedly connected to the lead screw 52, ​​the moving frame 53 is slidably mounted on the frame 1, and the top of the mounting box 21 is fixedly connected to the bottom of the moving frame 53.

[0092] In this embodiment, the other end of the lead screw 52 is rotatably connected to the frame 1, and the second drive component 51 is a motor structure, which provides power adjustment for the rotation adjustment of the lead screw 52, ​​thereby facilitating the longitudinal movement of the entire moving frame 53.

[0093] The longitudinal movement mechanism 5 facilitates the overall longitudinal movement of the lateral movement mechanism 2, thereby providing support for lane changing during the overall forward movement of the collision vehicle body 4; it is used to simulate a test scenario where the collision vehicle body 4 is performing a lane change in the oncoming lane during the U-turn of an autonomous vehicle.

[0094] Meanwhile, after the collision vehicle 4 completes one round of testing, the longitudinal movement mechanism 5 can control the collision vehicle 4 to change lanes to another lane. On the one hand, it provides a scene cancellation function for the autonomous vehicle to stop and avoid obstacles during the U-turn process, so as to test whether the autonomous vehicle can continue to perform lane change test after there is no obstruction in front; on the other hand, it can control the movement and reset of the collision vehicle 4 through the lateral movement mechanism 2 and the longitudinal movement mechanism 5.

[0095] Please refer to it again. Figure 1 Two baffles 11 are fixed on one side of the frame 1, and a turning area is formed between the two baffles 11. The collision vehicle body 4 is located within the coverage area of ​​the baffles 11.

[0096] By adding the barrier 11 to the test area, it is convenient to simulate the test environment where the oncoming lane is blocked within the U-turn range, thereby testing whether the autonomous vehicle can avoid the suddenly approaching collision vehicle 4 during the U-turn when there is no obvious visibility in the oncoming lane.

[0097] In a preferred embodiment of this invention, the enclosure panel 11 is detachably mounted on the frame 1 using bolts. This allows for easy installation or removal of the enclosure panel 11 as needed, accommodating scene switching requirements in different testing environments.

[0098] The working principle of the autonomous vehicle collision testing system provided in this embodiment is as follows:

[0099] Before the autonomous vehicle makes a U-turn:

[0100] The first driving component 221 is activated, which drives the transmission component 222 to run. The transmission component 222 drives the synchronous push block 35 to move to the left. The synchronous push block 35 drives the connecting pipe 31 and the support cover 41 to move to the left as a whole through the telescopic rod 34 in the docking state.

[0101] The support cover 41 drives the sliding plate 42 and the protective cover 43 to move to the left as a whole through the damping structure, so that the collision vehicle body 4 moves along the opposite lane and passes through the U-turn area.

[0102] Autonomous vehicles along Figure 7The vehicle makes a U-turn within the indicated forward range. Before the autonomous vehicle enters the U-turn range, the test examines whether the autonomous vehicle can safely stop and wait for the collision vehicle body 4 to leave the U-turn range.

[0103] When an autonomous vehicle makes a U-turn:

[0104] When the autonomous vehicle enters the U-turn area and its front end enters the oncoming lane, the first drive component 221 is activated. The first drive component 221 drives the synchronous push block 35 forward through the transmission component 222. The synchronous push block 35 pushes the connecting pipe 31, the support cover 41 and the sliding plate 42 to the left as a whole through the telescopic rod 34. The sliding plate 42 drives the protective cover 43 to move to the left and collide with the autonomous vehicle that is making a U-turn.

[0105] After the protective cover 43 collides with the autonomous vehicle, the protective cover 43 and the sliding plate 42 cannot move. The synchronous push block 35 drives the rubber cover 341, the connecting pipe 31 and the support cover 41 to move to the left relative to the sliding plate 42 through the telescopic rod 34, so that the rubber cover 341 passes through the first smooth section 4201 and the inclined section 4202 in sequence and then enters the second smooth section 4203.

[0106] During the process of the rubber cover 341 entering the second smooth section 4203, the elastic element 33 pushes the telescopic rod 34 downward, so that the telescopic rod 34 switches from the docking state to the separation state, so that the synchronous push block 35 separates from the connecting tube 31, the synchronous push block 35 can move out of the connecting tube 31, and the connecting tube 31 does not continue to follow the synchronous push block 35.

[0107] Regardless of whether the autonomous vehicle stops safely, the support cover 41 provides reserved space for the sliding plate 42 and the protective cover 43 to retract under force; in order to avoid the phenomenon that the autonomous vehicle fails to stop in time during a collision, causing overall crush damage to the collision vehicle body 4.

[0108] After the test, the first drive unit 221 is restarted. The first drive unit 221 drives the synchronous push block 35 to move to the right and re-enter the range of the locking cavity 300 through the transmission unit 222 until the synchronous push block 35 synchronously pushes the connecting pipe 31 to the right. When the connecting pipe 31 moves to the right, it drives the support cover 41 and the sliding plate 42 to move to the right as a whole.

[0109] Until the limiting plate 44 abuts against the reset plate 12, the sliding plate 42 and the protective cover 43 can no longer move to the right, while the synchronous push block 35 can continue to push the connecting pipe 31 to the right. The connecting pipe 31 drives the telescopic rod 34 and the rubber cover 341 to the right through the fixing block 32. The telescopic rod 34 passes through the second smooth section 4203 and the inclined section 4202 in sequence and then enters the first smooth section 4201.

[0110] During the process of the rubber cover 341 entering the first smooth section 4201, the telescopic rod 34 adaptively moves upward, and the telescopic rod 34 switches from the separated state back to the docking state, so that the synchronous push block 35 and the connecting pipe 31 are locked together, so that the synchronous push block 35 can subsequently drive the entire collision vehicle body 4 to move to the left.

[0111] Second embodiment: Please refer to the following: Figures 8 to 9 Based on the autonomous vehicle collision testing system provided in the first embodiment of the present invention, the second embodiment of the present invention proposes another autonomous vehicle collision testing system. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0112] Specifically, the difference in the autonomous vehicle collision test system provided in the second embodiment of the present invention is that an adjustment groove 421 is provided in the sliding plate 42, the adjustment groove 421 is connected to the sliding groove 420, a plug-in plate 431 is fixed on the protective cover 43, a locking hole 4310 is provided on the plug-in plate 431, the plug-in plate 431 is inserted into the sliding plate 42 and slidably connected, and the autonomous vehicle collision test system also includes a locking mechanism 6, which is installed in the range of the adjustment groove 421 and the sliding groove 420; the locking mechanism 6 includes a telescopic member 61, a synchronous sliding plate 62, a transmission rod 63 and a telescopic pin 64, the two ends of the telescopic member 61 are fixedly connected to the sliding plate 42 and the synchronous sliding plate 62, one end of the telescopic pin 64 passes through the sliding plate 42 and is inserted into the locking hole 4310, and the two ends of the transmission rod 63 are respectively hinged to the synchronous sliding plate 62 and the other end of the telescopic pin 64.

[0113] In this embodiment, the telescopic member 61 is used to drive the synchronous slide plate 62 to extend and retract, and the telescopic pin 64 is simultaneously driven to extend and retract via the transmission rod 63 while the synchronous slide plate 62 extends and retracts.

[0114] The telescopic pin 64 has two usage states:

[0115] In the locked state, the telescopic member 61 is in the extended state, and the telescopic pin 64 is inserted into the range of the locking hole 4310 to lock and limit the plug plate 431, ensuring the stability of the protective cover 43 during installation and use.

[0116] In the unlocked state, the telescopic component 61 is in the retracted state, and the telescopic pin 64 is disengaged from the locking hole 4310, so that the plug plate 431 is unlocked and can be freely extended and retracted, making it convenient for the protective cover 43 to be removed and replaced.

[0117] The principle for replacing the protective cover 43 is as follows:

[0118] Please refer to the following: Figures 8 to 9 Before the protective cover 43 needs to be replaced, the telescopic component 61 is activated. The telescopic component 61 drives the synchronous slide plate 62 to move to the left. The synchronous slide plate 62 pulls the telescopic pin 64 to retract through the transmission rod 63. When the telescopic pin 64 retracts, it disengages from the locking hole 4310, thereby unlocking the telescopic pin 64, so as to facilitate the unlocking and replacement of the protective cover 43.

[0119] In a preferred embodiment of this example, the telescopic member 61 can be any one of an electric telescopic rod, a hydraulic telescopic rod, or a telescopic cylinder, used to directly drive the synchronous sliding plate 62 to move and adjust, and to control the locking or unlocking of the plug-in plate 431, so as to facilitate the quick removal of the protective cover 43.

[0120] In another preferred embodiment of this example, the telescopic member 61 is an elastic support tube, and the two ends of the telescopic member 61 are elastically connected to the sliding plate 42 and the synchronous sliding plate 62, and the synchronous sliding plate 62 is aligned with the sliding range of the rubber cover 341.

[0121] The telescopic component 61 adopts an elastic support tube and is a spring support structure;

[0122] When the rubber cover 341 is not in contact with the synchronous slide plate 62, the telescopic member 61 can maintain the locking limit of the telescopic pin 64;

[0123] After the rubber cover 341 comes into contact with the synchronous slide plate 62, the telescopic member 61 is compressed, allowing the telescopic pin 64 to be unlocked.

[0124] The relative movement of the rubber cover 341 and the sliding plate 42 is manually controlled, and the rubber cover 341 abuts against the synchronous slide plate 62 and moves to the left, so that after the telescopic member 61 is compressed, the synchronous slide plate 62 can pull the telescopic pin 64 to adaptively retract through the transmission rod 63, and the telescopic pin 64 is pulled out from the range of the locking hole 4310 so as to facilitate the adaptive unlocking of the telescopic pin 64;

[0125] The protective cover 43 is pulled out horizontally and replaced. After replacement, when the rubber cover 341 is manually separated from the synchronous slide plate 62, the telescopic member 61, under the action of elastic support, adaptively pushes the synchronous slide plate 62 to the right. The synchronous slide plate 62 pushes the telescopic pin 64 to extend adaptively through the transmission rod 63. The telescopic pin 64 is inserted into the range of the locking hole 4310 to lock the replaced protective cover 43.

[0126] Preferably, there are two plug-in plates 431, and the number of plug-in plates 431, telescopic pins 64 and transmission rods 63 are equal. The two transmission rods 63 are symmetrically arranged on both sides of the synchronous slide plate 62.

[0127] By setting up two sets of plug-in plates 431, the stability of the protective cover 43 installed on the sliding plate 42 is increased, and the synchronous locking and unlocking of the two plug-in plates 431 is facilitated, making it easy to disassemble and replace the protective cover 43.

[0128] In an optional embodiment of this example, the reset plate 12 is provided with a locking clamp for locking the limiting plate 44 onto the reset plate 12, thereby facilitating the replacement of the protective cover 43.

[0129] The working principle of the autonomous vehicle collision testing system provided in this embodiment:

[0130] like Figure 10 As shown in (a), the rubber cover 341 is separated from the synchronous slide plate 62, the telescopic member 61 is fully extended, and the telescopic pin 64 is locked.

[0131] Please refer to the following: Figure 10 (a) to Figure 10 (b) to Figure 10 (c) When the protective cover 43 needs to be replaced, the limiting plate 44 is first locked on the reset plate 12 so that it cannot move;

[0132] Then, the lateral movement mechanism 2 controls the rubber cover 341 to move to the left along the range of the sliding groove 420; the rubber cover 341 moves toward and contacts the synchronous slide plate 62, and after contact, the rubber cover 341 pushes the synchronous slide plate 62 to the left and compresses the telescopic member 61;

[0133] While the synchronous slide plate 62 moves to the left relative to the sliding plate 42, the synchronous slide plate 62 pulls the telescopic pin 64 to retract via the transmission rod 63. When the telescopic pin 64 retracts, it disengages from the range of the locking hole 4310, thereby using the moving power of the lateral moving mechanism 2 to achieve adaptive unlocking of the telescopic pin 64, so as to facilitate the unlocking and replacement of the protective cover 43.

[0134] like Figure 10 As shown in (a), the rubber cover 341 is in contact with the synchronous slide plate 62, the telescopic member 61 is in a fully compressed state, and the telescopic pin 64 is in an unlocked state.

[0135] Similarly, after the new protective cover 43 is installed, the rubber cover 341 is moved to the right by the lateral movement mechanism 2, and the telescopic member 61 pushes the synchronous slide plate 62 to the right. The synchronous slide plate 62 drives the telescopic pin 64 to extend and insert into the locking hole 4310 through the transmission rod 63, so as to realize the adaptive locking of the protective cover 43 after replacement.

[0136] The lateral moving mechanism 2 is used to enable the protective cover 43 to be quickly unlocked and locked, so as to facilitate the replacement and use of the protective cover 43.

[0137] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A collision testing system for autonomous vehicles, characterized in that, include: frame; A lateral moving mechanism, wherein the fixed part of the lateral moving mechanism is mounted on the frame; A connecting mechanism includes a connecting pipe, a fixing block, an elastic element, and a telescopic rod. The top of the connecting pipe is installed in the moving part of the lateral moving mechanism. The fixing block is fixed inside the connecting pipe. The bottom of the telescopic rod passes through the fixing block and is slidably connected. The elastic element elastically connects the fixing block and the telescopic rod. The collision vehicle body includes a support cover, a sliding plate, and a protective cover. The top of the support cover is fixedly connected to the bottom of the connecting pipe. One end of the sliding plate passes through the support cover and is slidably connected. The protective cover is fixed to the other end of the sliding plate. The bottom of the telescopic rod abuts against the top of the sliding plate.

2. The autonomous vehicle collision testing system according to claim 1, characterized in that, A reset plate is fixedly provided at the rear of the frame, and the collision vehicle body also includes a limiting plate, which is fixedly provided at one end of the sliding plate; When the collision vehicle body is in standby mode, the limiting plate abuts against the reset plate.

3. The autonomous vehicle collision testing system according to claim 2, characterized in that, The lateral movement mechanism includes a mounting box and a drive device. The mounting box is mounted on the frame, and a sliding hole is provided at the bottom of the mounting box. The drive device includes a first drive component and a transmission component. The first drive component is fixed on the mounting box, and the transmission component is rotatably mounted inside the mounting box. The drive part of the first drive component passes through the mounting box and is connected to the transmission component. The top of the connecting pipe is slidably mounted on the mounting box through the sliding hole, and the connecting pipe is connected to the moving part of the transmission component.

4. The autonomous vehicle collision testing system according to claim 3, characterized in that, The connecting pipe has a movable hole; a locking cavity is formed between the telescopic rod and the connecting pipe; The top of the synchronous push block is fixedly connected to the moving part of the transmission component, and the bottom of the synchronous push block is inserted into the range of the locking cavity; The top of the sliding plate is provided with a sliding groove, which is composed of a first smooth section, an inclined section and a second smooth section from right to left; When the bottom of the telescopic rod is within the range of the first smooth section, the top of the telescopic rod and the top of the connecting pipe are on the same plane, and the synchronous push block is locked within the range of the locking cavity; When the bottom of the telescopic rod is within the range of the second smooth section, the top of the telescopic rod disengages from the horizontal range of the movable hole, and the synchronous push block unlocks.

5. The autonomous vehicle collision testing system according to claim 4, characterized in that, The bottom of the telescopic rod is fitted with a rubber cover, and the telescopic rod abuts against the sliding plate through the rubber cover.

6. The autonomous vehicle collision testing system according to claim 5, characterized in that, The autonomous vehicle collision test system further includes a longitudinal movement mechanism, which includes a second drive component, a lead screw, and a moving frame. The second drive component is fixed on the frame, the lead screw is fixed on the drive part of the second drive component, the moving frame is threadedly connected to the lead screw, the moving frame is slidably mounted on the frame, and the top of the mounting box is fixedly connected to the bottom of the moving frame.

7. The autonomous vehicle collision testing system according to claim 6, characterized in that, Two enclosures are fixed on one side of the frame, and a turning area is formed between the two enclosures. The collision vehicle body is located within the coverage area of ​​the enclosures.

8. The autonomous vehicle collision testing system according to claim 7, characterized in that, The enclosure panel is detachably mounted on the frame by bolts.

9. The autonomous vehicle collision testing system according to claim 8, characterized in that, The sliding plate has an adjustment groove that communicates with the sliding groove. A plug-in plate is fixed on the protective cover and has a locking hole. The plug-in plate is inserted into the sliding plate and slidably connected. The autonomous vehicle collision test system also includes a locking mechanism installed within the range of the adjustment groove and the sliding groove. The locking mechanism includes a telescopic component, a synchronous sliding plate, a transmission rod, and a telescopic pin. Both ends of the telescopic component are fixedly connected to the sliding plate and the synchronous sliding plate. One end of the telescopic pin passes through the sliding plate and is inserted into the locking hole. Both ends of the transmission rod are respectively hinged to the other ends of the synchronous sliding plate and the telescopic pin.

10. The autonomous vehicle collision testing system according to claim 9, characterized in that, The telescopic component is an elastic support tube, and its two ends are elastically connected to the sliding plate and the synchronous sliding plate. The synchronous sliding plate is aligned with the sliding range of the rubber cover.

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