CN215985203U - Road simulation unit and intelligent driving automobile test device thereof - Google Patents

Abstract

The utility model discloses a road simulation unit and an intelligent driving automobile test device thereof, which comprise a bracket, wherein a transverse guide rail and a vertical guide rail are arranged on the bracket; a first bearing seat and a second bearing seat are respectively connected to the transverse guide rail and the vertical guide rail in a sliding manner, and the first bearing seat and the second bearing seat can be respectively fixed at different positions of the transverse guide rail and the vertical guide rail; the first bearing seat and the second bearing seat are rotatably connected with different rotary drums, the rotary drums are arranged in parallel, and the rotary drums are sleeved in a flat track belt for supporting wheels; the device can adjust the space between the two rotary drums and the horizontal position between the two rotary drums, so that the tensioning degree of the flat rail belt sleeved on the two rotary drums can be adjusted, the replacement and installation of the flat rail belt can be quickly realized, the two rotary drums can be adjusted to be positioned on the same horizontal plane, and the safety of the test is ensured.

Description

Road simulation unit and intelligent driving automobile test device thereof

Technical Field

The utility model relates to the technical field of intelligent driving automobile research and development tests, in particular to a road simulation unit and an intelligent driving automobile test device thereof.

Background

With the continuous deepening of the automobile quaternization, the intellectualization has become an important development direction of the automobile industry. No matter the iteration of the intelligent driving algorithm or the verification of the related functions needs the real-time interaction between the vehicle and the surrounding environment, but the problems of low verification efficiency, potential safety hazards of pedestrians and vehicles, poor consistency of the test working conditions and the like caused by the lack of road resources are verified on the actual road, and how to truly simulate the road test in the test room becomes an important means for technical research and development. At present, an algorithm simulation platform is generally adopted for simulation verification of a whole vehicle in a loop test in combination with a coupling type chassis dynamometer, but due to structural limitation of the coupling type chassis dynamometer, the simulation is inconsistent with the real situation, if the simulation is insufficient in angle, the test is inconvenient to install and the like, the effect of intelligent driving verification is influenced, and the research and development speed of the industry is restricted.

Chinese patent application publication No. CN 109115514a discloses an angle-adjustable road simulation test device and method for testing an electric vehicle, in which an electric wheel is placed on the upper surface of a front and rear horizontal belt, a vertical lifting mechanism is disposed at the bottom of the rear end of the belt, the right end of an output shaft of the electric wheel is fixedly connected to a vertical loading device, the front and rear ends of the belt are respectively wound with a left and right horizontal roller, the inside of the rear roller is connected to a coaxial roller shaft, the inside of the front roller is connected to a coaxial stepped output shaft, and the right end of the stepped output shaft is connected to an experimental data acquisition mechanism; according to the scheme, the vertical downward load is given to the electric wheel through the vertical loading device, the electric wheel is electrified and rotated, the belt is driven to rotate through friction force between the electric wheel and the belt, so that the stepped output shaft is driven to rotate, the lifting mechanism drives the rear end of the belt to ascend or descend, the belt is inclined, and the uphill and downhill working conditions with different slopes are simulated.

Chinese patent application publication No. CN 108318210a discloses a wheel driving unit and a moving road simulation system, wherein a steel belt is simultaneously sleeved outside two driving wheels, wheels are placed on the steel belt, and the steel belt and the wheels on the steel belt are supported by a backing plate; this scheme is provided with overspeed device tensioner between two drive wheels for adjust the tensioning degree of steel band, but overspeed device tensioner can cause the nonconformity of two drive wheel heights, probably influences experimental security.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a road simulation unit and an intelligent driving automobile test device thereof, which are used for solving the problems in the prior art, the positions of a first bearing seat and a second bearing seat are limited by arranging a transverse guide rail and a vertical guide rail on a support, and the distance between two rotary drums and the horizontal position between the two rotary drums can be adjusted, so that the tensioning degree of a flat rail belt sleeved on the two rotary drums can be adjusted, the replacement and installation of the flat rail belt can be quickly realized, the two rotary drums can be adjusted to be positioned on the same horizontal plane, and the safety of the test is ensured.

In order to achieve the purpose, the utility model provides the following scheme:

the utility model provides a road simulation unit, which comprises a bracket, wherein a transverse guide rail and a vertical guide rail are arranged on the bracket; a first bearing seat and a second bearing seat are respectively connected to the transverse guide rail and the vertical guide rail in a sliding manner, and the first bearing seat and the second bearing seat can be respectively fixed at different positions of the transverse guide rail and the vertical guide rail; the first bearing seat and the second bearing seat are rotatably connected with different rotary drums, the rotary drums are arranged in parallel, and the rotary drums are all sleeved in a flat track belt for supporting wheels.

Preferably, the support is an L-shaped support, the transverse support arm of the L-shaped support is provided with the transverse guide rail, and the vertical support arm of the L-shaped support is provided with the vertical guide rail.

Preferably, the first bearing seat is connected with a horizontal hydraulic cylinder, and the fixed end of the horizontal hydraulic cylinder is connected to the vertical support arm; the second bearing seat is connected with an adjusting bolt, and the fixed end of the adjusting bolt is connected to the transverse support arm or the reverse extension section of the transverse support arm.

Preferably, a supporting seat is arranged between the rotary drums, the supporting seat is fixed on the support, and a sliding bearing structure in contact with the flat rail belt is arranged at the top of the supporting seat.

Preferably, the drum comprises a driving drum and a driven drum, the first bearing seat is used for supporting the driven drum, and the second bearing seat is used for supporting the driving drum.

Preferably, the driving rotary drum is connected with an internal motor or an external motor.

Preferably, a rotating speed sensor and a torque sensor are connected with the driving rotary drum.

The utility model also provides an intelligent driving automobile test device which comprises road simulation units corresponding to the wheels of the intelligent driving automobile one by one, wherein the road simulation units on the same side are arranged in the same mode, and the road simulation units on different sides are arranged in the same or opposite mode.

Preferably, the intelligent driving automobile comprises a roll support frame which is arranged and supported on two sides of the intelligent driving automobile.

Preferably, the roll supporting frame is connected with a roll cylinder, and the fixed end of the roll cylinder is connected to the fixed frame.

Compared with the prior art, the utility model has the following technical effects:

(1) according to the utility model, the transverse guide rail and the vertical guide rail are arranged on the bracket to limit the positions of the first bearing seat and the second bearing seat, so that the distance between the two rotary drums and the horizontal position between the two rotary drums can be adjusted, the tensioning degree of the flat rail belt sleeved on the two rotary drums can be adjusted, the replacement and installation of the flat rail belt can be rapidly realized, the two rotary drums can be adjusted to be positioned on the same horizontal plane, and the safety of a test is ensured;

(2) the support is an L-shaped support, the transverse support arm of the L-shaped support supports the transverse guide rail, the vertical support arm of the L-shaped support supports the vertical guide rail, and the transverse guide rail and the vertical guide rail are arranged on the same L-shaped support at the same time, so that the stability of the relative positions of the transverse guide rail and the vertical guide rail can be ensured, and the stability and the accuracy of the rotary drum in the process of adjusting the rotary drum and after adjusting the rotary drum are further ensured;

(3) according to the utility model, the sliding bearing structure which is in contact with the flat rail belt is arranged at the top of the supporting seat, so that the abrasion of the supporting seat on the flat rail belt can be reduced when the flat rail belt runs, the service life of a test device is prevented from being influenced, and the accuracy of test data is ensured;

(4) the intelligent driving automobile tilting device comprises the tilting support frames, the tilting support frames are arranged and supported on two sides of the intelligent driving automobile, the tilting and the deflection of the intelligent driving automobile can be adjusted through the tilting support frames, and the test data of more working conditions can be obtained.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a road simulation unit according to the present invention;

FIG. 2 is a schematic structural diagram of the intelligent driving automobile test device of the present invention;

FIG. 3 is a schematic structural diagram of the road simulation unit provided with an external motor according to the present invention;

wherein, 1, a base; 2. an active drum; 3. a driven drum; 4. a second bearing housing; 5. a first bearing housing; 6. a torque sensor; 7. a flat rail belt; 8. a supporting seat; 9. a sliding load bearing structure; 10. a rotational speed sensor; 11. a side-tipping support frame; 12. a side-tipping oil cylinder; 13. a horizontal hydraulic cylinder; 14. a transverse guide rail; 15. adjusting the bolt; 16. a support; 17. a vertical guide rail; 18. an external motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model aims to provide a road simulation unit and an intelligent driving automobile test device thereof, which are used for solving the problems in the prior art, and the positions of a first bearing seat and a second bearing seat are limited by arranging a transverse guide rail and a vertical guide rail on a support, so that the distance between two rotary drums and the horizontal position between the two rotary drums can be adjusted, the tensioning degree of a flat rail belt sleeved on the two rotary drums can be adjusted, the two rotary drums can be adjusted to be positioned on the same horizontal plane, and the test safety is ensured.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1, the present invention provides a road simulation unit, which comprises a support 16, wherein the support 16 may be a frame structure or a plate structure, the support 16 may further include a base 1 located at the bottom thereof, and the base 1 maintains a fixed position and state to serve as a carrier for supporting devices such as a drum, and the support 16 needs to have a certain bearing capacity to ensure stable operation of the devices mounted on the support 16. Specifically, the bracket 16 is provided with a transverse guide rail 14 and a vertical guide rail 17, the transverse guide rail 14 and the vertical guide rail 17 may be structures processed on the bracket 16 and capable of serving as guide rails, or independent guide rails may be connected to corresponding positions on the bracket 16 in a detachable mounting or fixed welding manner, and the guide rails may be in the form of a projection or a guide groove; in addition, the relative position relationship between the transverse guide rails 14 and the vertical guide rails 17 is set according to the set motion requirements of the rotary drums, that is, the transverse guide rails 14 and the vertical guide rails 17 can move the rotary drums transversely to adjust the distance between the rotary drums, and can also move the rotary drums vertically to adjust the horizontal height between the rotary drums. The transverse guide rail 14 and the vertical guide rail 17 are respectively connected with a first bearing seat 5 and a second bearing seat 4 in a sliding manner, and guide grooves or guide blocks matched with the transverse guide rail 14 and the vertical guide rail 17 are arranged or arranged on the first bearing seat 5 and the second bearing seat 4. Moreover, the first bearing seat 5 and the second bearing seat 4 can be fixed at different positions of the transverse guide rail 14 and the vertical guide rail 17 respectively, so that the position of the rotary drum can be adjusted and fixed; it should be noted that, the mode of adjusting the positions of the first bearing seat 5 and the second bearing seat 4 may adopt driving structures such as a linear driving motor, a hydraulic telescopic cylinder, a pneumatic telescopic cylinder or a lead screw nut, and the like, and can drive the first bearing seat 5 and the second bearing seat 4 to respectively slide on the transverse guide rail 14 and the vertical guide rail 17; as for the manner of fixing the first bearing seat 5 and the second bearing seat 4, the above-mentioned driving structure may be adopted for direct fixing, and also another limiting structure or locking structure may be adopted for fixing, and the specific fixing manner is a routine choice of those skilled in the art, and is not described herein again. The first bearing seat 5 and the second bearing seat 4 are rotatably connected with different rotary drums, the rotary drum may include a central shaft, the central shaft is installed in a bearing installed in the bearing seat, it should be noted that the first bearing seat 5 and the second bearing seat 4 are generally installed at both ends of the rotary drum in the axial direction, that is, the support 16 is symmetrically installed at both ends of the rotary drum, of course, if the support 16 and the bearing seats have sufficient bearing capacity, the support may also be installed at only one end, and at this time, the rotary drum is in a state that one end is suspended. Keep parallel arrangement between the rotary drum, can be provided with two rotary drums, establish the rotary drum all in flat rail area 7, flat rail area 7 can laminate the rotary drum to move under the drive of rotary drum, perhaps flat rail area 7 drives the rotary drum operation, is used for supporting the wheel of carrying out the experiment on the flat rail area 7, and the wheel can be installed on intelligent driving car, also can install on the rotatory support frame of other support wheels. For the driving mode of the rotating drum, two rotating drums can be both driving rotating drums 2, one driving rotating drum 2 and one driven rotating drum 3 can be adopted, the driving rotating drums 2 can be arranged on a first bearing seat 5 and also can be arranged on a second bearing seat 4, and the corresponding driven rotating drums 3 can be arranged on the second bearing seat 4 and also can be arranged on the first bearing seat 5, so that the conversion of the transverse movement or the vertical movement of the driving rotating drums 2 and the driven rotating drums 3 is realized. According to the utility model, the transverse guide rail 14 and the vertical guide rail 17 are arranged on the bracket 16 to limit the positions of the first bearing seat 5 and the second bearing seat 4, so that the distance between the two rotary drums and the horizontal position between the two rotary drums can be adjusted, the tensioning degree of the flat rail belt 7 sleeved on the two rotary drums can be adjusted, the replacement and installation of the flat rail belt 7 can be rapidly realized, the two rotary drums can be adjusted to be positioned on the same horizontal plane, and the safety of the test can be ensured.

The support 16 may be an L-shaped support including a vertical support arm and a horizontal support arm, which may be cut through a plate-like structure or may be formed by splicing a frame structure. A transverse guide rail 14 is arranged on a transverse support arm of the L-shaped support, a vertical guide rail 17 is arranged on a vertical support arm of the L-shaped support, and the specific installation or setting mode is not required. The fixed end of the driving structure driving the first bearing housing 5 and the second bearing housing 4 to move may be mounted on an L-shaped bracket. The mode that sets up horizontal guide 14 and vertical guide 17 simultaneously on same L type support is adopted, can guarantee the stability of horizontal guide 14 and vertical guide 17 relative position, and then guarantees stability and the accuracy behind the in-process of adjustment rotary drum and the adjustment rotary drum.

The first bearing pedestal 5 can be connected with a horizontal hydraulic cylinder 13, the horizontal hydraulic cylinder 13 is used as a device for transverse driving, and the fixed end of the horizontal hydraulic cylinder 13 is connected with the vertical support arm. The second bearing block 4 can be connected with an adjusting bolt 15, the adjusting bolt 15 is used as a vertical driving device, and the fixed end of the adjusting bolt 15 is connected to the transverse support arm or the reverse extension section of the transverse support arm.

A supporting seat 8 can be further arranged between the two rotary drums, the supporting seat 8 is fixedly connected to a support 16 (comprising a vertical portion of the support 16 and the base 1), the supporting seat 8 is mainly used for bearing the weight of wheels and an intelligent driving automobile, and a sliding bearing structure 9 in contact with the flat rail belt 7 is arranged at the top of the supporting seat 8. Through setting up sliding bearing structure 9, when the flat rail area 7 operation, can reduce the supporting seat 8 to the wearing and tearing of flat rail area 7, avoid influencing test device's life, guarantee test data's accuracy.

The drum can include driving drum 2 and driven drum 3, and first bearing frame 5 is used for supporting driven drum 3, and second bearing frame 4 is used for supporting driving drum 2, that is to say, driving drum 2 can vertical movement, and driven drum 3 can horizontal movement, realizes the positional relationship adjustment between driving drum 2 and the driven drum 3. The driven rotary drum 3 can be conveniently realized during transverse movement due to the fact that structures such as a driving motor do not need to be connected, and the control of the driving rotary drum 2 can be realized through the adjusting bolt 15 due to the fact that the amplitude of vertical movement is relatively small, and the realization can be facilitated.

As shown in fig. 1 and 3, the driving drum 2 may be connected to an internal motor or an external motor 18, when the external motor 18 is adopted, the external motor 18 may be installed on the base 1, and a driving shaft of the external motor 18 may be connected to a central shaft of the driving drum 2 in a manner of a universal hinge, etc., so as to avoid the influence of the connection between the driving shaft and the central shaft when the vertical position of the driving drum 2 is adjusted.

As shown in fig. 2, a rotation speed sensor 10 and a torque sensor 6 may be further connected to the driving drum 2. The torque sensor 6 may be mounted in a bearing housing on the opposite side of the motor driving the drum to rotate, and the speed sensor 10 may be mounted on the same bearing housing. The drum control device is also provided with a drum controller, the drum controller collects the running state of the drum in real time through a rotating speed sensor 10 and a torque sensor 6, and controls the torque or the rotating speed for driving an internal motor or an external motor 18 to run through a frequency converter.

As shown in fig. 2, the present invention further provides an intelligent driving automobile test device, which includes road simulation units corresponding to wheels of an intelligent driving automobile one by one, and the road simulation units on the same side (left and right direction relative to the automobile body) are arranged in the same manner, where the arrangement manner refers to the relative position relationship between the driving rotary drum 2 and the driven rotary drum 3, that is, the driving rotary drum 2 is located on the front side (front and back direction of the automobile body) of the driven rotary drum 3, and the driving rotary drum 2 is located on the back side (front and back direction of the automobile body) of the driven rotary drum 3; the road simulator units on different sides (left and right with respect to the vehicle body) are arranged in the same or opposite manner. When the built-in motor is adopted, the arrangement mode with the same two sides has no great influence on the installation of the testing device, when the external motor 18 is adopted, the external motor 18 can occupy a part of space, at the moment, the external motor 18 can be installed on the outer side of the vehicle body, and therefore the arrangement with the opposite two sides is adopted to be more beneficial to the installation of the testing device.

Can also include the support frame 11 that heels, the support frame 11 that heels sets up and supports in the both sides of intelligent driving car, can install the both sides on chassis to through the action of the support frame 11 that heels, can make the automobile body of intelligent driving car take place and control the slope, thereby, can adjust the experimental data's of heeling beat of intelligent driving car through the support frame 11 that heels, realize the acquisition of more operating modes. The intelligent driving automobile test device can form a complete intelligent driving test platform by 4 sets of road simulation units, 2 sets of side-tipping devices and a signal simulation and control system.

The power device of the roll supporting frame 11 can adopt a roll oil cylinder 12, the movable end of the roll oil cylinder 12 is connected with the end part of the roll supporting frame 11, and the fixed end of the roll oil cylinder 12 is connected with another fixed frame, so that the supporting angle of the roll supporting frame 11 can be changed through the support of the fixed frame when the roll oil cylinder 12 extends and retracts, and further the roll angle of the vehicle body can be changed.

The utility model can ensure the consistency of the test working condition when the vehicle runs in a state consistent with the road, simultaneously, the test preparation work is simple and easy, the validity of the verification and the test period are greatly improved, and the use requirements of the research and development of intelligent driving products are met.

The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.

Claims (10)

1. A road simulator unit, characterized by: the device comprises a bracket, wherein a transverse guide rail and a vertical guide rail are arranged on the bracket; a first bearing seat and a second bearing seat are respectively connected to the transverse guide rail and the vertical guide rail in a sliding manner, and the first bearing seat and the second bearing seat can be respectively fixed at different positions of the transverse guide rail and the vertical guide rail; the first bearing seat and the second bearing seat are rotatably connected with different rotary drums, the rotary drums are arranged in parallel, and the rotary drums are all sleeved in a flat track belt for supporting wheels.

2. The road simulator unit of claim 1, wherein: the support is L-shaped, the transverse support arm of the L-shaped support is provided with the transverse guide rail, and the vertical support arm of the L-shaped support is provided with the vertical guide rail.

3. The road simulator unit of claim 2, wherein: the first bearing seat is connected with a horizontal hydraulic cylinder, and the fixed end of the horizontal hydraulic cylinder is connected to the vertical support arm; the second bearing seat is connected with an adjusting bolt, and the fixed end of the adjusting bolt is connected to the transverse support arm or the reverse extension section of the transverse support arm.

4. A road simulator unit as claimed in any one of claims 1 to 3, characterized in that: and a supporting seat is arranged between the rotary drums, the supporting seat is fixed on the support, and a sliding bearing structure which is in contact with the flat rail belt is arranged at the top of the supporting seat.

5. The road simulator unit of claim 4, wherein: the drum comprises a driving drum and a driven drum, the first bearing seat is used for supporting the driven drum, and the second bearing seat is used for supporting the driving drum.

6. The road simulator unit of claim 5, wherein: the driving rotary drum is connected with an internal motor or an external motor.

7. The road simulator unit of claim 6, wherein: the driving rotary drum is connected with a rotating speed sensor and a torque sensor.

8. The utility model provides an intelligence driving car test device which characterized in that: comprising road simulator units according to any of claims 1-7 in one-to-one correspondence with wheels of a smart driving vehicle, said road simulator units on the same side being arranged in the same manner and said road simulator units on different sides being arranged in the same or opposite manner.

9. The intelligent driving automobile test device of claim 8, wherein: including the support frame that heels, the support frame that heels sets up and supports in the both sides of intelligent driving car.

10. The intelligent driving automobile test device of claim 9, wherein: the supporting frame that heels is connected with the hydro-cylinder that heels, the stiff end of hydro-cylinder that heels is connected on the mount.

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