CN219015657U

CN219015657U - High-stability automatic driving test vehicle

Info

Publication number: CN219015657U
Application number: CN202223377348.1U
Authority: CN
Inventors: 张志杰
Original assignee: Ningbo University
Current assignee: Ningbo University
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-12
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses a high-stability automatic driving test vehicle, which comprises an automatic driving test vehicle base, a test vehicle body, an anti-collision assembly and an auxiliary brake assembly, wherein a movable wheel is arranged at four corners of the bottom of the automatic driving test vehicle base; the automatic driving test vehicle has the advantages that when the automatic driving test vehicle collides, the collision force is buffered through the rubber collision avoidance bar, the front collision avoidance unit and the rear collision avoidance unit, so that the impact force on the test vehicle body is greatly reduced, the damage to the internal control system is not easy to occur, and the service life and the stability of the test vehicle body are effectively prolonged.

Description

High-stability automatic driving test vehicle

Technical Field

The utility model relates to an automatic driving test vehicle, in particular to a high-stability automatic driving test vehicle.

Background

With the rapid development of computer technology and artificial intelligence technology in recent years, unmanned technology is one of the hot technologies being developed by various parties, and some unmanned vehicles have been started to be applied, such as delivering express and cleaning road surfaces. Before unmanned vehicles are put into market, multiple tests are required to fully verify the safety of the unmanned vehicles.

Currently, testing of unmanned vehicles is typically performed using automated driving test vehicles of a model vehicle configuration. When testing, the driving route is input into the automatic driving test vehicle, and the automatic driving test vehicle is controlled to automatically drive forward, backward and steer according to the driving route according to the internal control system of the automatic driving test vehicle. Because the control right of automatic driving is controlled by the control system in the test vehicle body under certain conditions, when the control system or the driving route fails in the test process, the automatic driving test vehicle collides with external obstacles in the driving process, and the impact force directly acts on the test vehicle body, so that the internal control system of the test vehicle body is easily damaged, the service life of the test vehicle body is shortened, the use stability of the test vehicle body is easily influenced, and certain improvement is needed.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the high-stability automatic driving test vehicle which is not easy to damage an internal control system during collision and can effectively prolong the service life and stability of a test vehicle body.

The technical scheme adopted for solving the technical problems is as follows: a high-stability automatic driving test vehicle comprises an automatic driving test vehicle base, a test vehicle body, an anti-collision assembly and an auxiliary brake assembly, wherein a movable wheel is arranged at four corners of the bottom of the automatic driving test vehicle base, the auxiliary brake assembly is used for fixing the movable wheel in collision, the test vehicle body is positioned above the automatic driving test vehicle base, the test vehicle body is fixed at the top of the automatic driving test vehicle base, the left side and the right side of the test vehicle body are fixedly provided with raised rubber anti-collision strips, the rubber anti-collision strips extend in the front-rear direction, the anti-collision assembly comprises two anti-collision units, the two anti-collision units are respectively arranged at the front side and the rear side of the test vehicle body, the anti-collision unit positioned at the rear side is called a rear anti-collision unit, the anti-collision unit positioned at the front side is called a front anti-collision unit, the rear anti-collision unit comprises a first fixed box, a plurality of first buffer springs, a first sliding plate, two first connecting blocks and a first anti-collision plate, wherein the first fixed box is fixed on the rear side wall of the test vehicle body, the plurality of first buffer springs and the first sliding plate are both positioned in the first fixed box and distributed up and down, the front ends of the plurality of first buffer springs are arranged on the front side wall of the first fixed box, the first sliding plate is positioned on the rear side of the plurality of first buffer springs, the rear ends of the plurality of first buffer springs are fixedly connected with the first sliding plate, the two first connecting blocks extend into the first fixed box from the rear side of the first fixed box, the front ends of the two first connecting blocks are fixedly connected with the first sliding plate, the first anti-collision plate is positioned at the rear sides of the two first connecting blocks, and the rear ends of the two first connecting blocks are fixedly connected with the first anti-collision plate; the front anti-collision unit comprises a second fixing box, a plurality of second buffer springs, a second sliding plate, two second connecting blocks and a second anti-collision plate, wherein the second fixing box is fixed on the front side wall of the test vehicle body, the second buffer springs and the second sliding plate are all located in the second fixing box, the second buffer springs are distributed up and down, the rear ends of the second buffer springs are installed on the rear side wall of the second fixing box, the second sliding plate is located on the front sides of the second buffer springs, the front ends of the second buffer springs are fixedly connected with the second sliding plate, the two second connecting blocks extend into the second fixing box from the front sides of the second fixing box, the rear ends of the two second connecting blocks are connected with the second sliding plate, the second anti-collision plate is located on the front sides of the two second connecting blocks, and the front ends of the two second connecting blocks are connected with the second connecting blocks.

A high stability autopilot test car still include dustproof subassembly, dustproof subassembly include two liquid sacs, inlet tube, storage water tank, two outlet pipes and installation piece, be called preceding liquid sac and back liquid sac with two outlet pipes, be called preceding outlet pipe and back outlet pipe with two liquid sacs, back liquid sac be located first fixed incasement, and install the front side of first sliding plate, preceding liquid sac be located second fixed incasement, and install second sliding plate rear side, the installation piece fix test car body top, the storage water tank install installation piece top, the installation piece inside first inner chamber of having seted up, first inner chamber around the distribution be provided with a plurality of atomizer, a plurality of atomizer with first inner chamber communicate with each other, preceding water piping connection preceding liquid sac with first inner chamber, the back water piping connection back liquid sac with first inner chamber, preceding liquid sac be connected respectively, the water tank before the water tank the water piping with the outlet pipe the water piping the water tank all be provided with the one-way valve. When the front anti-collision unit or the rear anti-collision unit collides, the front liquid bag or the rear liquid bag is extruded, water stored in the front liquid bag or the rear liquid bag flows to the first cavity, and then the water is sprayed out through a plurality of atomization spray heads arranged at the first cavity, so that floating dust generated by disappearance of driving inertia force is eliminated, and further the working environment around the test vehicle body is greatly improved.

The auxiliary brake assembly comprises a mounting box, a gas pipe, a front airbag, a rear airbag, a front sliding plate, a rear sliding plate, a front connecting rod, a rear connecting rod, a first return spring, a second return spring, a third return spring, a fourth return spring, a first brake block, a second brake block, a third brake block, a fourth brake block, a front guide rod, a rear guide rod, a front brake plate and a rear brake plate, wherein the front airbag is mounted between the second anti-collision plate and the second fixing box, the rear airbag is mounted between the first anti-collision plate and the first fixing box, the mounting box is fixed in the base of the automatic driving test vehicle, the front sliding plate and the rear sliding plate are mounted in the mounting box and can move back and forth under stress, the front sliding plate is positioned on the front side of the rear sliding plate, the rear sliding plate and the side wall of the mounting box enclose a closed air cavity, the air pipe is used for communicating the closed air cavity with the front air bag and the rear air bag, the rear part of the front connecting rod is positioned in the mounting box and positioned at the front side of the front sliding plate, the front connecting rod is fixedly connected with the front sliding plate, the front part of the front connecting rod is positioned at the front side of the mounting box, the first brake block is fixed at the front end of the front connecting rod, the front end surface of the first brake block is an inclined surface, the lower part of the front connecting rod is positioned at the lower side of the base of the automatic driving test vehicle, the front brake plate is positioned at the lower side of the front connecting rod and positioned right above one movable wheel at the front side, the front brake plate is fixed on the front connecting rod, the upper part of the front connecting rod is positioned in the base of the automatic driving test vehicle, the second brake block is positioned on the upper side of the front guide rod, the second brake block is fixed on the front guide rod, the rear end face of the second brake block is an inclined plane, the rear end face of the second brake block is in contact with the front end face of the first brake block, when the first brake block moves forwards, the second brake block is forced to move downwards, the first return spring is sleeved on the rear part of the front guide rod, the front end of the first return spring is abutted against the front side wall of the mounting box, the rear end of the first return spring is abutted against the front sliding plate, the second return spring is sleeved on the upper part of the front guide rod, the upper end of the second return spring is abutted against the second brake block, and the lower end of the second return spring is abutted against the side wall of the automatic driving test vehicle base; the front part of the rear connecting rod is positioned in the mounting box and is positioned at the rear side of the rear sliding plate, the rear connecting rod is fixedly connected with the rear sliding plate, the front part of the rear connecting rod is positioned at the rear side of the mounting box, the third brake block is fixed at the rear end of the rear connecting rod, the rear end face of the third brake block is an inclined plane, the lower part of the rear guide rod is positioned at the lower side of the automatic driving test vehicle base, the rear brake plate is positioned at the lower side of the rear guide rod and right above one movable wheel positioned at the rear side, the rear brake plate is fixed on the rear guide rod, the upper part of the rear guide rod is positioned in the automatic driving test vehicle base, the fourth brake block is positioned at the upper side of the rear guide rod, the novel automatic driving test vehicle is characterized in that the fourth brake block is fixed on the rear guide rod, the front end face of the fourth brake block is an inclined face, the rear end face of the third brake block is in contact with the front end face of the fourth brake block, when the third brake block moves backwards, the fourth brake block is stressed to move downwards, the third return spring is sleeved on the front portion of the rear guide rod, the rear end of the third return spring abuts against the rear side wall of the mounting box, the front end of the third return spring abuts against the rear sliding plate, the fourth return spring is sleeved on the upper portion of the rear guide rod, the upper end of the fourth return spring abuts against the fourth brake block, and the lower end of the fourth return spring abuts against the side wall of the base of the automatic driving test vehicle. In this structure, when crashproof unit or back crashproof unit bump in the front, preceding gasbag or back gasbag receive the extrusion, and the interior atmospheric pressure of closed chamber increases this moment, promotes preceding slide and back slide and removes to make first brake block extrusion second brake block, third brake block extrusion fourth brake block, preceding braking vane and back braking vane down move, with the movable wheel pressure of its below, realize quick brake, effectively reduced the economic loss of autopilot test car when receiving outside striking.

The first brake block, the second brake block, the third brake block and the fourth brake block are right trapezoid blocks with right trapezoid cross sections along the vertical direction, the inclined planes of the first brake block, the second brake block, the third brake block and the fourth brake block are end faces of inclined edges of the right trapezoid, the upper bottom of the right trapezoid cross section of the first brake block is located below the lower bottom of the first brake block, the upper bottom of the right trapezoid cross section of the second brake block is located above the lower bottom of the second brake block, the upper bottom of the right trapezoid cross section of the third brake block is located below the lower bottom of the third brake block, and the upper bottom of the right trapezoid cross section of the fourth brake block is located above the lower bottom of the fourth brake block. In this structure, realize first brake block, second brake block, third brake block and fourth brake block through right trapezoid piece, part processing technology is simple, reduces the part cost.

Compared with the prior art, the utility model has the advantages that the raised rubber anti-collision strips are fixedly arranged on the left side and the right side of the test car body, the front anti-collision unit and the rear anti-collision unit are arranged on the front side and the rear side of the test car body simultaneously, when the left side and the right side of the test car body are impacted, the rubber anti-collision strips buffer and release the impact force to reduce the impact force to the test car body, when the automatic driving test car collides in the advancing process, the second anti-collision plates in the front anti-collision unit firstly undergo impact and move backwards, the two second connecting blocks synchronously move backwards to push the second sliding plates, at the moment, the plurality of second buffer springs are compressed to buffer and release the impact force to the test car body, the acting force to the test car body is greatly reduced through the acting force of the plurality of second buffer springs, when the automatic driving test car collides in the retreating process, the first anti-collision plates in the rear anti-collision unit firstly undergo impact and move forwards, at the moment, the plurality of first buffer springs are compressed to buffer and release the impact force to the test car body, the impact force to the test car body is greatly reduced, the impact force to the test car is greatly damaged through the impact force to the test car body is greatly, the impact force to the test car is greatly reduced, and the impact force to the test car is not damaged in the test car is greatly, and the impact force is greatly controlled by the impact force to the test car is greatly, and the impact force to the test car is easy to control the impact force to the test car.

Drawings

FIG. 1 is a perspective view of a high stability autopilot test vehicle of the present utility model;

FIG. 2 is a partial cross-sectional view of the high stability autopilot test vehicle of the present utility model;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged view of a portion B in fig. 2.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

Embodiment one: as shown in the figure, a high-stability automatic driving test vehicle comprises an automatic driving test vehicle base 1, a test vehicle body 2, an anti-collision component and an auxiliary brake component, wherein a movable wheel 3 is arranged at four corners of the bottom of the automatic driving test vehicle base 1, the auxiliary brake component is used for fixing the movable wheel 3 in the event of collision, the test vehicle body 2 is positioned above the automatic driving test vehicle base 1, the test vehicle body 2 is fixed at the top of the automatic driving test vehicle base 1, the high-stability automatic driving test vehicle is characterized in that the left side and the right side of the test vehicle body 2 are fixedly provided with raised rubber anti-collision strips 4, the rubber anti-collision strips 4 extend in the front-rear direction, the anti-collision component comprises two anti-collision units, the two anti-collision units are respectively arranged at the front side and the rear side of the test vehicle body 2, the anti-collision unit positioned at the rear side is called a rear anti-collision unit, the anti-collision unit positioned at the front side is called a front anti-collision unit, the rear anti-collision unit comprises a first fixed box 5, a plurality of first buffer springs 6, a first sliding plate 7, two first connecting blocks 8 and a first anti-collision plate 9, wherein the first fixed box 5 is fixed on the rear side wall of the test vehicle body 2, the plurality of first buffer springs 6 and the first sliding plate 7 are both positioned in the first fixed box 5, the plurality of first buffer springs 6 are distributed up and down, the front ends of the plurality of first buffer springs 6 are arranged on the front side wall of the first fixed box 5, the first sliding plate 7 is positioned on the rear side of the plurality of first buffer springs 6, the rear ends of the plurality of first buffer springs 6 are fixedly connected with the first sliding plate 7, the two first connecting blocks 8 extend into the first fixed box 5 from the rear side of the first fixed box 5, the front ends of the two first connecting blocks 8 are fixedly connected with the first sliding plate 7, the first anti-collision plate 9 is positioned on the rear side of the two first connecting blocks 8, the rear ends of the two first connecting blocks 8 are fixedly connected with the first anti-collision plate 9; the front anti-collision unit comprises a second fixing box 10, a plurality of second buffer springs 11, a second sliding plate 12, two second connecting blocks 13 and a second anti-collision plate 14, wherein the second fixing box 10 is fixed on the front side wall of the test vehicle body 2, the plurality of second buffer springs 11 and the second sliding plate 12 are all located in the second fixing box 10, the plurality of second buffer springs 11 are distributed up and down, the rear ends of the plurality of second buffer springs 11 are installed on the rear side wall of the second fixing box 10, the second sliding plate 12 is located on the front sides of the plurality of second buffer springs 11, the front ends of the plurality of second buffer springs 11 are all fixedly connected with the second sliding plate 12, the two second connecting blocks 13 extend into the second fixing box 10 from the front sides of the second fixing box 10, the rear ends of the two second connecting blocks 13 are connected with the second sliding plate 12, the second anti-collision plate 14 is located on the front sides of the two second connecting blocks 13, and the front ends of the two second connecting blocks 13 are all connected with the second anti-collision plate 14.

In this embodiment, when the left and right sides of the test vehicle body 2 are impacted, the rubber bumper strip 4 buffers and releases the impact force to reduce the impact force to the test vehicle body 2, when the autopilot test vehicle collides in the forward process, the second bumper plate 14 in the front bumper unit moves backward firstly by the impact, the two second connecting blocks 13 move backward synchronously to push the second sliding plate 12, the second sliding plate 12 moves backward to compress the plurality of second buffer springs 11, the plurality of second buffer springs 11 are compressed to buffer and release the impact force, the impact force to the test vehicle body 2 is greatly reduced by the acting force of the plurality of second buffer springs 11, when the autopilot test vehicle collides in the backward process, the first bumper plate 9 in the rear bumper unit moves forward by the impact, the two first connecting blocks 8 move forward synchronously to push the first sliding plate 7, the first sliding plate 7 moves forward to compress the plurality of first buffer springs 6, the plurality of first buffer springs 6 are compressed to buffer and release the impact force to the test vehicle body 2 by the acting force of the plurality of first buffer springs 6.

Embodiment two: this embodiment is substantially the same as the embodiment except that: in this embodiment, the high stability autopilot test car still includes dustproof subassembly, dustproof subassembly includes two liquid sacs, inlet tube 15, storage water tank 16, two outlet pipes and installation piece 17, will two liquid sacs be called preceding liquid sac 18 and back liquid sac 19, will two outlet pipes be called preceding outlet pipe 20 and back outlet pipe 21, back liquid sac 19 is located first fixed box 5, and install the front side at first sliding plate 7, preceding liquid sac 18 is located second fixed box 10, and install at second sliding plate 12 rear side, the installation piece 17 is fixed at the test car body 2 top, storage water tank 16 installs at the installation piece 17 top, the first inner chamber has been seted up to installation piece 17 inside, the distribution is provided with a plurality of atomizer around the first inner chamber, a plurality of atomizer communicate with each other with first inner chamber, preceding outlet pipe 20 is connected preceding liquid sac 18 and first inner chamber, back outlet pipe 21 is connected back liquid sac 19 and first inner chamber, inlet tube 15 is connected storage water tank 16 respectively, preceding liquid sac 18 and back liquid sac 19, preceding outlet pipe 20, back outlet pipe 21 and inlet tube 15 department all are provided with the check valve.

In this embodiment, the check valve disposed at the front water outlet pipe 20 is in the closed state in the initial state, the check valve disposed at the rear water outlet pipe 21 is in the closed state in the initial state, the check valve disposed at the water inlet pipe 15 is in the closed state in the initial state, water is pre-stored in the front liquid bag 18 and the rear liquid bag 19, water is pre-stored in the water storage tank 16, when the front anti-collision unit collides, the second sliding plate 12 moves backwards to press the front liquid bag 18, at this time, the water pressure in the front liquid bag 18 increases to open the check valve disposed at the front water outlet pipe 20, the water in the front liquid bag 18 flows to the first cavity through the front water outlet pipe 20, and then the plurality of atomizing nozzles disposed at the first cavity spray to eliminate floating dust generated due to the disappearance of running inertia force, when the rear anti-collision unit collides, the first sliding plate 7 moves forwards to press the rear liquid bag 19, at this time, the water pressure in the rear liquid bag 19 increases to open the check valve disposed at the rear water outlet pipe 21, and then flows to the first cavity through the plurality of atomizing nozzles disposed at the first cavity to eliminate the running inertia force generated by the back anti-collision unit. Before use, if the water in the front liquid sac 18 and the rear liquid sac 19 is insufficient, the water in the front liquid sac 18 and the rear liquid sac 19 can be added by opening the one-way valves arranged at the water inlet pipe 15 and the water in the water storage tank 16.

Embodiment III: this embodiment is basically the same as the second embodiment, except that: the auxiliary brake assembly comprises a mounting box 22, an air pipe 23, a front air bag 24, a rear air bag 25, a front sliding plate 26, a rear sliding plate 27, a front connecting rod 28, a rear connecting rod 29, a first return spring 30, a second return spring 31, a third return spring 32, a fourth return spring 33, a first brake block 34, a second brake block 35, a third brake block 36, a fourth brake block 37, a front guide rod 38, a rear guide rod 39, a front brake plate 40 and a rear brake plate 41, wherein the front air bag 24 is mounted between the second anti-collision plate 14 and the second fixing box 10, the rear air bag 25 is mounted between the first anti-collision plate 9 and the first fixing box 5, the mounting box 22 is fixed in the automatic test vehicle base 1, the front sliding plate 26 and the rear sliding plate 27 are mounted in the mounting box 22 and can move forwards and backwards under stress, the front sliding plate 26 is positioned on the front side of the rear sliding plate 27, the side walls of the front sliding plate 26, the rear sliding plate 27 and the mounting box 22 enclose an enclosed air cavity 42, the air pipe 23 communicates the closed air chamber 42 with the front air bag 24 and the rear air bag 25, the rear part of the front connecting rod 28 is positioned in the mounting box 22 and is positioned at the front side of the front sliding plate 26, the front connecting rod 28 is fixedly connected with the front sliding plate 26, the front part of the front connecting rod 28 is positioned at the front side of the mounting box 22, the first brake block 34 is fixed at the front end of the front connecting rod 28, the front end surface of the first brake block 34 is an inclined surface, the lower part of the front guide rod 38 is positioned at the lower side of the test car base 1, the front brake plate 40 is positioned at the lower side of the front guide rod 38 and right above one of the moving wheels 3 at the front side, the front brake plate 40 is fixed on the front guide rod 38, the upper part of the front guide rod 38 is positioned inside the test car base 1, the second brake block 35 is positioned at the upper side of the front guide rod 38, the second brake block 35 is fixed on the front guide rod 38, the rear end surface of the second brake block 35 is an inclined surface, the rear end face of the second brake block 35 is in contact with the front end face of the first brake block 34, when the first brake block 34 moves forwards, the second brake block 35 moves downwards under force, the first return spring 30 is sleeved on the rear part of the front guide rod 38, the front end of the first return spring 30 is abutted against the front side wall of the mounting box 22, the rear end of the first return spring 30 is abutted against the front sliding plate 26, the second return spring 31 is sleeved on the upper part of the front guide rod 38, the upper end of the second return spring 31 is abutted against the second brake block 35, and the lower end of the second return spring 31 is abutted against the side wall of the automatic driving test vehicle base 1; the front portion of the rear connecting rod 29 is located in the mounting box 22 and is located at the rear side of the rear sliding plate 27, the rear connecting rod 29 is fixedly connected with the rear sliding plate 27, the front portion of the rear connecting rod 29 is located at the rear side of the mounting box 22, the third brake block 36 is fixed at the rear end of the rear connecting rod 29, the rear end face of the third brake block 36 is an inclined face, the lower portion of the rear guide rod 39 is located at the lower side of the automatic driving test car base 1, the rear brake plate 41 is located at the lower side of the rear guide rod 39 and right above one of the moving wheels 3 located at the rear side, the rear brake plate 41 is fixed on the rear guide rod 39, the upper portion of the rear guide rod 39 is located in the interior of the automatic driving test car base 1, the fourth brake block 37 is located at the upper side of the rear guide rod 39, the fourth brake block 37 is fixed on the rear guide rod 39, the front end face of the fourth brake block 37 is an inclined face, the rear end face of the third brake block 36 is in contact with the front end face of the fourth brake block 37, when the third brake block 36 moves backward, the fourth brake block 37 moves downward, the third return spring 32 is sleeved on the lower side of the rear guide rod 39 and abuts against the fourth return spring 33, the fourth return spring 33 abuts against the upper side wall of the rear guide rod 33, and the fourth side wall 33 abuts against the upper side of the rear guide rod 33, and the fourth side of the automatic driving test car.

In this embodiment, the first brake block 34, the second brake block 35, the third brake block 36 and the fourth brake block 37 are right trapezoid blocks with right trapezoid cross sections along the vertical direction, the inclined planes of the first brake block 34, the second brake block 35, the third brake block 36 and the fourth brake block 37 are end faces where the inclined sides of the right trapezoid are located, the upper bottom of the right trapezoid cross section of the first brake block 34 is located below the lower bottom of the right trapezoid block, the upper bottom of the right trapezoid cross section of the second brake block 35 is located above the lower bottom of the right trapezoid block, the upper bottom of the right trapezoid cross section of the third brake block 36 is located below the lower bottom of the right trapezoid block, and the upper bottom of the right trapezoid cross section of the fourth brake block 37 is located above the lower bottom of the right trapezoid block.

In this embodiment, when the front collision preventing unit collides with the rear front collision preventing unit, the second collision preventing plate 14 presses the front air bag 24 or the first collision preventing plate 9 presses the rear air bag 25, at this time, the pre-stored air in the front air bag 24 or the rear air bag 25 is pressed to flow to the closed chamber through the air pipe 23, the air pressure is increased, thereby pushing the front sliding plate 26 to move forward and the rear sliding plate 27 to move backward, at this time, the first brake block 34 moves forward, the front end surface presses the second brake block 35, the second brake block 35 moves downward, the front guide rod 38 moves downward synchronously with the second brake block 35, the second brake block 35 contacts with the moving wheel 3 below the second brake block and presses the moving wheel 3, meanwhile, the third brake block 36 moves backward, the rear end surface presses the fourth brake block 37, the fourth brake block 37 moves downward, the rear guide rod 39 moves downward synchronously with the fourth brake block 37, the fourth brake block 37 contacts with the moving wheel 3 below the fourth brake block and presses the moving wheel 3, and rapid braking is achieved.

Claims

1. The utility model provides a high stability autopilot test car, includes autopilot test car base, test car body, buffer subassembly and auxiliary brake subassembly, the bottom four corners department of autopilot test car base all install a movable wheel, auxiliary brake subassembly be used for fixing when bumping the movable wheel, the test car body be located autopilot test car base top, the test car body fix autopilot test car base top, its characterized in that the left and right sides of test car body all be fixed and be provided with bellied rubber buffer strip, the rubber buffer strip extend forward and backward direction, buffer subassembly include two buffer units, two buffer units install respectively the front and back both sides of test car body, will be located the buffer unit of rear side and be referred to as the back buffer unit, the buffer unit that is located the front side be referred to as the front buffer unit, the back buffer unit include first fixed box, a plurality of first buffer springs, first sliding plate, two first connecting blocks and first plate, the first connecting box fixed to be located the first side of first buffer box and the first connecting plate, the first connecting plate of a plurality of buffer boxes of first connecting box, the first connecting plate of first connecting box and the first connecting plate, the first connecting box, the first connecting plate of first connecting box, the first connecting plate, the first connecting box, the first buffer box, the first connecting plate, the first buffer box, the first buffer unit that is located the first side, the first anti-collision plate is positioned at the rear sides of the two first connecting blocks, and the rear ends of the two first connecting blocks are fixedly connected with the first anti-collision plate; the front anti-collision unit comprises a second fixing box, a plurality of second buffer springs, a second sliding plate, two second connecting blocks and a second anti-collision plate, wherein the second fixing box is fixed on the front side wall of the test vehicle body, the second buffer springs and the second sliding plate are all located in the second fixing box, the second buffer springs are distributed up and down, the rear ends of the second buffer springs are installed on the rear side wall of the second fixing box, the second sliding plate is located on the front sides of the second buffer springs, the front ends of the second buffer springs are fixedly connected with the second sliding plate, the two second connecting blocks extend into the second fixing box from the front sides of the second fixing box, the rear ends of the two second connecting blocks are connected with the second sliding plate, the second anti-collision plate is located on the front sides of the two second connecting blocks, and the front ends of the two second connecting blocks are connected with the second connecting blocks.

2. The high-stability automatic driving test vehicle according to claim 1, further comprising a dustproof assembly, wherein the dustproof assembly comprises two liquid bags, a water inlet pipe, a water storage tank, two water outlet pipes and a mounting block, the two liquid bags are called a front liquid bag and a rear liquid bag, the two water outlet pipes are called a front water outlet pipe and a rear water outlet pipe, the rear liquid bag is positioned in the first fixed box and is mounted on the front side of the first sliding plate, the front liquid bag is positioned in the second fixed box and is mounted on the rear side of the second sliding plate, the mounting block is fixed at the top of the test vehicle body, the water storage tank is mounted at the top of the mounting block, a first inner cavity is formed in the mounting block, a plurality of atomizing nozzles are distributed around the first inner cavity and are communicated with the first inner cavity, the front liquid bag is connected with the first inner cavity, the rear water outlet pipe is connected with the rear liquid bag is connected with the first inner cavity, and the front liquid bag is connected with the water outlet pipe and the water outlet pipe is provided with the water inlet pipe.

3. The high stability autopilot test vehicle of claim 1 wherein said auxiliary brake assembly includes a mounting case, an air duct, a front air bag, a rear air bag, a front slide, a rear slide, a front connecting rod, a rear connecting rod, a first return spring, a second return spring, a third return spring, a fourth return spring, a first brake pad, a second brake pad, a third brake pad, a fourth brake pad, a front guide bar, a rear guide bar, a front brake pad and a rear brake pad, said front air bag being mounted between said second anti-collision pad and said second mounting case, said rear air bag being mounted between said first anti-collision pad and said first mounting case, said mounting case being secured within said autopilot vehicle base, said front slide and said rear slide being mounted within said mounting case and being movable back and forth, said front slide being positioned on the front side of said rear slide, said front slide, said rear brake pad and a side wall of said mounting case forming a seal between said second anti-collision pad and said second mounting case, said front air bag being mounted to said front air bag, said front air bag being mounted to said mounting case, said front air bag being mounted to said front air bag being secured to said mounting case, said front air bag being mounted to said front air bag being secured to said mounting case, the front braking plate is fixed on the front guide rod, the upper part of the front guide rod is positioned in the base of the automatic driving test vehicle, the second braking block is positioned on the upper side of the front guide rod, the second braking block is fixed on the front guide rod, the rear end face of the second braking block is an inclined plane, the rear end face of the second braking block is contacted with the front end face of the first braking block, when the first braking block moves forwards, the second braking block moves downwards under the force, the first return spring is sleeved on the rear part of the front guide rod, the front end of the first return spring is abutted against the front side wall of the mounting box, the rear end of the first return spring is abutted against the front sliding plate, the second return spring is sleeved on the upper part of the front guide rod, the upper end of the second return spring is abutted against the second braking block, and the lower end of the second return spring is abutted against the side wall of the base of the automatic driving test vehicle; the front part of the rear connecting rod is positioned in the mounting box and is positioned at the rear side of the rear sliding plate, the rear connecting rod is fixedly connected with the rear sliding plate, the front part of the rear connecting rod is positioned at the rear side of the mounting box, the third brake block is fixed at the rear end of the rear connecting rod, the rear end face of the third brake block is an inclined plane, the lower part of the rear guide rod is positioned at the lower side of the automatic driving test vehicle base, the rear brake plate is positioned at the lower side of the rear guide rod and right above one movable wheel positioned at the rear side, the rear brake plate is fixed on the rear guide rod, the upper part of the rear guide rod is positioned in the automatic driving test vehicle base, the fourth brake block is positioned at the upper side of the rear guide rod, the novel automatic driving test vehicle is characterized in that the fourth brake block is fixed on the rear guide rod, the front end face of the fourth brake block is an inclined face, the rear end face of the third brake block is in contact with the front end face of the fourth brake block, when the third brake block moves backwards, the fourth brake block is stressed to move downwards, the third return spring is sleeved on the front portion of the rear guide rod, the rear end of the third return spring abuts against the rear side wall of the mounting box, the front end of the third return spring abuts against the rear sliding plate, the fourth return spring is sleeved on the upper portion of the rear guide rod, the upper end of the fourth return spring abuts against the fourth brake block, and the lower end of the fourth return spring abuts against the side wall of the base of the automatic driving test vehicle.

4. The high-stability automatic driving test vehicle according to claim 3, wherein the first brake block, the second brake block, the third brake block and the fourth brake block are right trapezoid blocks with right trapezoid cross sections along the vertical direction, the inclined planes of the first brake block, the second brake block, the third brake block and the fourth brake block are end faces of a bevel edge of the right trapezoid, an upper bottom of the right trapezoid cross section of the first brake block is located below the lower bottom of the first brake block, an upper bottom of the right trapezoid cross section of the second brake block is located above the lower bottom of the second brake block, an upper bottom of the right trapezoid cross section of the third brake block is located below the lower bottom of the third brake block, and an upper bottom of the right trapezoid cross section of the fourth brake block is located above the lower bottom of the fourth brake block.