CN106644496B - Automobile active pedestrian's collision avoidance test device - Google Patents
Automobile active pedestrian's collision avoidance test device Download PDFInfo
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- CN106644496B CN106644496B CN201510729057.XA CN201510729057A CN106644496B CN 106644496 B CN106644496 B CN 106644496B CN 201510729057 A CN201510729057 A CN 201510729057A CN 106644496 B CN106644496 B CN 106644496B
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Abstract
A kind of automobile active pedestrian collision avoidance test device, including spaced driving mechanism, transmission mechanism, are equipped with conveyer belt between driving mechanism, transmission mechanism, conveyer belt is used to be laid on the plane of travel of automobile；Conveyer belt is sequentially connected respectively with driving mechanism, transmission mechanism, is driven by driving mechanism, to be driven between driving mechanism and transmission mechanism；Walking mechanism, for dummy to be arranged, walking mechanism is set on conveyer belt, moves with conveyer belt.Compared to existing gantry frame type test device, on the one hand, present apparatus quality and volume are smaller, easy to carry；On the other hand, walking mechanism is supported in ground by conveyer belt, and dummy is not susceptible to wave, and guarantees the accuracy of test.
Description
Technical field
The present invention relates to field of automotive active safety, and in particular to a kind of automobile active pedestrian collision avoidance test device.
Background technique
With the rapid growth of car ownership, traffic safety problem has become national governments and social concerns
Major issue, and in the lethal accident of most road traffics, it is all as caused by driver's fault.
In order to reduce the traffic accident as caused by driver's fault, AEB (Automatic Emergency Braking
System, automatic emergency brake system) it comes into being.The system extends driver using modern information technologies, sensing technology
Sensing capability, the external information perceived (such as speed, pedestrian or other obstacle distances) is passed into driver, simultaneously
It recognizes whether to constitute security risk in the integrated information of road conditions and vehicle condition, and in case of emergency, is taken measures automatically to vapour
Vehicle carries out emergency braking, and automobile is enable actively to avert danger, and guarantees vehicle safe driving, to reduce traffic accident, improves and hands over
Logical safety.
Pedestrian's collision avoidance is the free-revving engine of AEB system, is mainly used for identifying pedestrian and avoiding, to avoid in example
In such as crossroad road conditions with pedestrian collision.Therefore, in order to guarantee AEB work reliability, need to carry out automobile primary
Dynamic pedestrian's collision avoidance test, the test need to realize using special automobile active pedestrian's collision avoidance test device.
Currently, automobile active pedestrian's collision avoidance test device generally uses gantry frame type test device to realize.Specifically, imperial
Door frame includes the pillar for being respectively arranged on both sides of the road and the crossbeam positioned at post top portion, and crossbeam is equipped with guide rail and can be along leading
The sliding block of rail sliding, is connected with dummy below sliding block, dummy can be moved to along guide rail from one end of crossbeam with sliding block
The other end simulates the scene that pedestrian jaywalks with this.
The shortcomings that this device, is:
First, lead to the quality and bulky of gantry frame type test device, is not easy to carry；
Second, dummy needs to slide along guide rail, therefore the foot of dummy must be liftoff, is there is wind environment and acceleration and deceleration situation
Under be easy to happen and wave, influence the accuracy of test.
Summary of the invention
Problems solved by the invention is the gantry frame type test device in existing automobile active pedestrian collision avoidance test device
Quality and bulky, and the accuracy tested is not good enough.
To solve the above problems, the present invention provides a kind of automobile active pedestrian collision avoidance test device, including spaced
Driving mechanism, transmission mechanism are equipped with conveyer belt between the driving mechanism, transmission mechanism, the conveyer belt is for being laid on vapour
In the plane of travel of vehicle；The conveyer belt is sequentially connected respectively with the driving mechanism, the transmission mechanism, by the driving machine
Structure driving, to be driven between the driving mechanism and the transmission mechanism；Walking mechanism, for dummy, the walking to be arranged
Mechanism is set on the conveyer belt, is moved with the conveyer belt.
Optionally, the driving mechanism includes: the driving portion for driving pedestal, being installed on the driving pedestal, Yi Jitong
Axis connection is in the driving wheel of the driving portion output end；The transmission mechanism includes transmission base, and is installed on the transmission
Driving wheel on pedestal；The conveyer belt is in the driving wheel, driving wheel transmission connection, passes through the driving wheel, institute
State the rotation transmission of driving wheel.
Optionally, the conveyer belt is in a ring, to be sheathed on the driving wheel, the driving wheel outer and have and the driving
The transmission surface of the periphery face contact of wheel, the driving wheel, and moved by the rotate driving of the driving wheel；The conveyer belt packet
Two branches for being located at the driving wheel radially opposite sides are included, the walking mechanism is located therein the branch road.
Optionally, guide part is additionally provided on the driving pedestal, the guide part is set to the driving wheel, the driving wheel
Between and close to the driving wheel, for the transmission surface to be kept axial parallel with the driving wheel, every branch divides
It Dui Ying not a guide part；The guide part includes respectively along the first guide part of the radial arrangement of the driving wheel,
Two guide parts, the distance between first guide part, second guide part are less than the width on the transmission surface of the conveyer belt；Institute
The first guide part is stated with the first surface parallel with the axial direction of the driving wheel, second guide part has and the driving
The parallel second surface of the axial direction of wheel, the conveyer belt are arranged between the first surface, second surface.
Optionally, first guide part, the second guide part are one in directive wheel and baffle；The axis of the directive wheel
Plate face to, the baffle is axial parallel with the driving wheel.
Optionally, further include commutation portion, for changing the transmission surface direction, make the transmission surface and automobile
Plane of travel is parallel；The commutation portion is between the guide part and the driving wheel, and at least on the driving pedestal
Equipped with the commutation portion；The commutation portion includes the spaced two groups of commutations in direction with edge perpendicular to the plane of travel
Axis, the reversing shaft is parallel with the plane of travel, and the conveyer belt is passed through between two groups of reversing shafts, and described two groups are changed
It is less than the width on the transmission surface to the distance between axis.
Optionally, the commutation portion further includes reverse wheel, is at least set to the reversing shaft along the transmission side of the conveyer belt
To side；The reverse wheel is arranged with corresponding pedestal interval, and the axial direction of the reverse wheel is parallel with the plane of travel, institute
It states conveyer belt and is passed through between the reverse wheel and corresponding pedestal, the distance between the reversing shaft and corresponding pedestal are less than
The width on the transmission surface.
Optionally, the corresponding commutation portion of each branch, alternatively, two branches share a commutation portion.
It optionally, further include fixation clip, on the pedestal where the commutation portion；The fixation clip is located at described
Between commutation portion and another pedestal, for fixing the conveyer belt.
Optionally, the transmission mechanism further includes cover board, the side opposite with the transmission base positioned at the driving wheel,
For preventing the conveyer belt to be detached from the driving wheel.
Optionally, sliding slot is equipped in the cover board, the sliding slot is along the transmission mechanism to the direction of the driving mechanism
Extend；The central axis plane of the driving wheel is inserted in the sliding slot to one end of the cover board, and can be moved along the sliding slot.
It optionally, further include tensioned portion, for pushing the driving wheel to move along the sliding slot, the tensioned portion includes:
Lead screw is connect with the central axis plane to one end of the cover board, and the axial direction of the lead screw is radial parallel with the driving wheel；
Feed screw nut is sheathed on outside the lead screw, and the feed screw nut is constant relative to the position of the cover board.
Optionally, the lead screw is rotatably penetrated and arranged in the cover board, and is stretched out in one end far from the central axis
The cover board；The feed screw nut is set to the lead screw and stretches out the part of the cover board, and is resisted against on the cover board.
Optionally, the conveyer belt is linear, and is driven by way of engaging with the driving wheel, driving wheel respectively
Connection.
Optionally, the conveyer belt is synchronous belt.
Compared with prior art, technical solution of the present invention has the advantage that
The present apparatus includes driving mechanism, transmission mechanism, and the conveyer belt being sequentially connected with driving mechanism, transmission mechanism,
Conveyer belt is set to the plane of travel of automobile, and on ground, the walking mechanism for being installed with dummy is fixedly arranged on conveyer belt, and with conveyer belt
Movement and move, the scene that dummy walks on road is simulated with this.
Compared to existing gantry frame type test device, on the one hand, present apparatus quality and volume are smaller, easy to carry；Separately
On the one hand, walking mechanism is supported in ground by conveyer belt, and dummy is not susceptible to wave, and guarantees the accuracy of test.
Detailed description of the invention
Fig. 1 is the schematic perspective view of automobile active pedestrian's collision avoidance test device of the embodiment of the present invention；
Fig. 2 is the stereochemical structure signal of driving mechanism in automobile active pedestrian's collision avoidance test device of the embodiment of the present invention
Figure；
Fig. 3 shows driving motor in driving mechanism, driving wheel, guide part and the stereochemical structure in commutation portion；
Fig. 4 is the stereochemical structure signal of transmission mechanism in automobile active pedestrian's collision avoidance test device of the embodiment of the present invention
Figure；
Fig. 5 is the plan structure signal of transmission mechanism in automobile active pedestrian's collision avoidance test device of the embodiment of the present invention
Figure, is shown the part-structure of cover board.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
A kind of automobile active pedestrian collision avoidance test device of the present embodiment, it is shown referring to Fig.1, including spaced driving machine
Structure 100, transmission mechanism 200 are equipped with conveyer belt 300, are connected on conveyer belt 300 between driving mechanism 100, transmission mechanism 200
Walking mechanism 400.Wherein, conveyer belt 300 is used to be laid on the plane of travel (such as ground) of automobile.
Conveyer belt 300 is sequentially connected respectively with driving mechanism 100, transmission mechanism 200, is driven by driving mechanism 100, with
It is driven between driving mechanism 100 and transmission mechanism 200.For walking mechanism 400 for dummy 400a to be arranged, walking mechanism 400 is fixed
On conveyer belt 300, is moved with the transmission of conveyer belt 300, conveyer belt 300 is followed to move to driver from driving mechanism 100
Structure 200, or driving mechanism 100 is moved to from transmission mechanism 200.
When test, driving mechanism 100, transmission mechanism 200 are for being arranged in both sides of the road, one and drive of conveyer belt 300
Motivation structure 100 is sequentially connected, and other end and transmission mechanism 200 are sequentially connected.Dummy is fixed in walking mechanism 400, conveyer belt
When 300 movement, walking mechanism 400 moves together with conveyer belt 300, so that the scene that pedestrian walks on road is simulated, it is special
It is not the scene jaywalked.
When test, automotive front end is equipped with camera, communicates with the control module on automobile, control module can be ESC
(Electronic Speed Controller, body electronics stabilizing control system) etc..Camera is for knowing dummy
Not, and by signal control module is passed to, control module starts active collision avoidance function according to the signal triggering response received.
Dummy is walked from a side of road to the other side with certain speed.As camera discovery dummy and there are when risk of collision, will believe
It number is sent to ESC, ESC starts active collision avoidance function, carries out emergency brake.If collision avoidance success or impact-moderation, are tested
Pass through；If system does not respond, tests and do not pass through.
Compared with existing gantry frame type test device, on the one hand, in the present apparatus, each piece volumes and quality are all smaller,
Also, driving mechanism 100, transmission mechanism 200, conveyer belt 300 and walking mechanism 400 are mutually independent component, are being surveyed
Test device is formed by assembling when examination, is readily transported and carries, can be placed in SUV boot.
On the other hand, conveyer belt 300 is laid on the plane of travel of automobile (test vehicle), such as on ground, walking mechanism
400 are supported in ground by conveyer belt 300, even if dummy 400a is also not easy in the case where the environment and acceleration and deceleration for having wind
It waves, guarantees the accuracy of test.
The present apparatus is used to test for automobile active pedestrian's collision avoidance of AEB, can satisfy and crosses in Euro NCAP to pedestrian
The scene requirement of the walk test of road, including distal end pedestrian is run, proximal end adult walks and proximal end children three kinds of typical cases of walking
Scene.
Wherein, in walking mechanism, dummy 400a is soft body model, in order to achieve the effect that smoothly to be identified by camera, this
Dummy 400a meets following design requirement in device: for the ratio of dummy 400a close to true man, the posture of dummy 400a is straight, leg
The degree opened is not more than the width of shoulder；Clothes chooses and the biggish color of background colour color difference, normal children's dark coat, adult
Light jacket (non-reflective), dark trousers, clothes is close-fitting, avoids clothing not whole.In addition, dummy 400a elbow joint and knee joint can
With movement, side simulates the case where really jaywalking to camera.
Walking mechanism 400 can select slide plate, very smooth as the fixed platform of dummy 400a, be conducive to dummy 400a
Fixation.Several ball castors are arranged in skateboard bottom, and guarantee that slide plate ground clearance is minimum.The back side of slide plate is fixed with metal
Block, and by metal block and transmission band connection, metal block and slide plate are connected by screw to, and conveyer belt is fixed on slide plate center.
Driving mechanism 100 imparts power to slide plate by conveyer belt 300.
Dummy 400a is fixed on slide plate by supported at three point: bipod tape-stripping is on slide plate or passes through electromagnetism
Ferropexy is on slide plate, and bipod is as two supporting points.The back dummy 400a is fixed on cunning by strut (such as transparent strut)
Plate, as third supporting point.Specifically, the back dummy 400a is drilled by drilling machine, and by the top insert hole of strut,
The bottom of strut is fixed on slide plate by adhesive tape or electromagnet.When automobile and dummy 400a collide, adhesive tape takes off automatically
It falls or electromagnet power-off, dummy 400a and slide plate separates, automobile will not damage dummy 400a and slide plate, while can guarantee to test
Vehicle safety harmlessly passes through.
The front setting nylon block of slide plate, nylon block are located at side of the dummy towards driving mechanism 100, driving mechanism 100
It is equipped with photoelectric sensor, for emitting light wave.When nylon block is less than set distance at a distance from photoelectric sensor, photoelectric transfer
The light wave of sensor is transferred to nylon block and by nylon block reflected light electric transducer.Photoelectric sensor receives nylon block reflection
Light wave, then it is assumed that dummy is in start position；Meanwhile photoelectric sensor sends a signal to control module, informs control
Module dummy has been positioned at start position.Hereby it is achieved that the initialization of whole device.
Further, referring to Fig. 2 and as shown in connection with fig. 3, driving mechanism 100 includes: to drive pedestal 110, be installed on driving
Driving portion 120 and the coaxially connected driving wheel 130 in 120 output end of driving portion on pedestal 110.Wherein, pedestal is driven
110 are used to be fixed on the plane of travel of automobile, such as on ground, or are fixed on other fixed stations.In the present embodiment, with ground
Plane of travel of the face as automobile, driving pedestal 110 can be fixed on the ground by swell fixture or using counterweight.
Such as Fig. 2 and as shown in connection with fig. 3, driving portion 120 includes driving motor 121, is connected to 121 output end of driving motor
The shaft coupling 123 of retarder 122 and the output end positioned at retarder 122.Wherein, retarder 122 is for reducing driving motor
121 output revolving speed is sequentially connected between decelerating motor 121 and driving wheel 120 by shaft coupling 123.
In order to enable pedestrian to reach enough acceleration, high-power servo motor is can be selected in driving motor 121.Pass through tune
The revolving speed of whole driving motor 121, enables dummy's 400a stepless speed regulation, and can be parked in any position, when starting for test
The recognition performance for detecting camera is carved, or starts position for adjusting pedestrian.Driving motor 121 can by storage battery power supply,
And it can be started by wireless control or touch switch.
When test, the front dummy 400a is directed at camera, judges that can camera accurately identify dummy 400a.It is walking
On the ground in 400 front of mechanism, need to place one or more for triggering the trigger switch of driving motor 121.Automobile advances
When, when wheel is pressed onto trigger switch, then the circuit of driving motor 121 is connected and is started running, dummy 400a starting movement, fortune
Depending on dynamic speed is according to test request.In addition, the Starting mode of dummy 400a can also be replaced with remote control.For different test works
Condition, can be by changing the vertical range between trigger switch and conveyer belt 300, come at the time of dummy 400a starting walking is arranged.
When test, mainly there are two control amounts for dummy 400a movement: the Startup time and dummy 400a of dummy 400a walking
The speed of travel.Pass through the vertical range between control trigger switch and dummy's 400a track route, adjustable dummy 400a
The Startup time of walking；By changing the duty ratio of the input pulse of driving motor 121, the walking speed of adjustable dummy 400a
Degree.
It should be noted that the waterproof and dustproof of all electric elements meets IP64 in order to be tested in outdoor
It is required that.
Such as Fig. 2-3, driving pedestal 120 further includes driving wheel support plate 111 and the support for being supported in driving wheel support plate 111
Seat 112.Driving wheel 130 is supported in driving wheel support plate 111, and driving portion 120 is then supported on driving wheel branch by support base 112
On fagging 111.
Referring to Fig. 4 and as shown in connection with fig. 5, transmission mechanism 200 includes transmission base 210, and is installed on transmission base 210
On driving wheel 220.Wherein, transmission base 210 is used to fix on the ground, or is fixed on other fixed stations.This implementation
In example, transmission base 210 can be fixed on the ground by swell fixture or using counterweight.
The rotation transmission that conveyer belt 300 passes through driving wheel 130, driving wheel 220.
Wherein, the transmission connection mode between conveyer belt 300 and driving mechanism 100, transmission mechanism 200 can there are many,
As long as meeting can be driven by driving mechanism 100 and be moved between driving mechanism 100, transmission mechanism 200.
For example, can be set as follows: one end of conveyer belt 300 volume be located in a drive shaft and make the drive shaft with
Driving wheel 130 is coaxially connected, and the other end volume of conveyer belt 300 is located on a transmission shaft and makes the transmission shaft and driving wheel 220
It is coaxially connected, wherein drive shaft is as driving wheel central axis, and transmission shaft is as driving wheel central axis.Driving wheel 130 is passed along retracting
When the direction of band 300 being sent to rotate, conveyer belt 300 is moved towards driving wheel 130 and is furled to driving wheel central axis.
At this time if necessary to 300 reciprocable of conveyer belt, need to increase on transmission mechanism 200 for driving driving wheel
The driving portion of 220 rotations, and driving wheel 220 and driving wheel 130 are rotated synchronously.In this way, working as driving wheel 130, driving wheel 220
When rotation, conveyer belt 300 just can move therebetween.
Alternatively, can also be set as follows: conveyer belt 300 is linearly, and has engaging tooth, with driving wheel 130, biography
It is sequentially connected between driving wheel 220 by intermeshing mode.So, when driving wheel 130 rotates, conveyer belt 300 is being driven
It is moved between wheel 130 and driving wheel 220.
Conveyer belt 300 for engaging with driving wheel 130, driving wheel 220 can be synchronous belt or other have engagement
The band-like driving member of tooth, such as chain etc..Wherein, it is respective to combine V belt translation, chain conveyer and gear drive for synchronous belt transmitting
Advantage transmits power by being meshed with tooth with the tooth socket of wheel when rotating.Toothed belt transmission has accurate transmission ratio,
Without slippage, constant speed ratio can get, the characteristics of stable drive.
In the present embodiment use another mode: conveyer belt 300 in a ring, be sheathed on driving wheel 130, driving wheel 220
Outside, and by the rotate driving of driving wheel 130 it moves.Conveyer belt 300 has the periphery face contact with driving wheel 130, driving wheel 220
Transmission surface.It can wherein be passed by the way of belt-belt pulley between conveyer belt 300 and driving wheel 130, driving wheel 220
The mode of dynamic connection or chain-sprocket is sequentially connected.
In the present embodiment, conveyer belt 300 is synchronous belt, and driving wheel 130, driving wheel 220 are gear, and conveyer belt 300 exists
The inside of annular has engaging tooth, and is engaged by engaging tooth with driving wheel 130, driving wheel 220.That is, the transmission of conveyer belt 300
Surface is equipped with engaging tooth.
Conveyer belt 300 includes two branches for being located at 130 radially opposite sides of driving wheel, and walking mechanism 400 is located therein
One branch road.Such as Fig. 2-3, two branches are defined as the first branch 301, second branch 302 in this implementation, wherein first
Branch 301, the direction of motion of second branch 302 are opposite always.As in Fig. 2-3, along overlook direction, when driving wheel 130 is clockwise
When rotation, then the first branch 301 is moved towards transmission mechanism 200, and second branch 302 is moved towards driving mechanism 100, works as driving
When wheel 130 rotates counterclockwise, then the first branch 301, second branch 302 distinguish counter motion.
It should be noted that with driving wheel 130, driving wheel 220 assemble before, conveyer belt 300 can it is cricoid and
Driving wheel 130 is directly placed on when assembly, outside driving wheel 220；Alternatively, conveyer belt 300 be also possible to before assembly it is linear, and
In assembly around driving wheel 130, after driving wheel 220, then both ends are linked together, form ring-type.
Wherein, driving wheel 130, driving wheel 220 can be arranged in any direction, that is to say, that its axial direction can towards appoint
Where to.In the present embodiment, driving pedestal 110, transmission base 210 are plate, and be layed on ground in test, with
Ground is substantially parallel.Driving wheel 130, driving wheel 220 axial direction be each perpendicular to driving pedestal 110, transmission base 210 plate face.
Wherein, for conveyer belt 300 when spreading out of from driving wheel 130, the transmission surface of conveyer belt 300 is perpendicular to the ground.
Further, it with continued reference to Fig. 3, drives and is additionally provided with guide part 140 on pedestal 110, be set to driving wheel 130 and transmission
Between wheel 220 and close to driving wheel 130, every branch respectively corresponds a guide part 140.The effect of guide part 140 is will to lean on
The transmission surface of the part conveyer belt 300 of nearly driving wheel 130 is maintained at the state parallel with the axial direction of driving wheel 130, to guarantee
Conveyer belt 300 along axial rings around driving wheel 130 is maintained at the state engaged with driving wheel 130, prevents the part conveyer belt 300
It is disengaged from driving wheel 130.
As shown in Figure 3, guide part 140 includes respectively along the first guide part of the radial arrangement of driving wheel 130
141, the second guide part 142, the first guide part 141, the second guide part 142 are respectively arranged on the two of the conveyer belt 300 of corresponding branch
Side, and the distance between the first guide part 141, second guide part 142 are not less than the thickness of conveyer belt, but are less than transmission surface
Width.That is, the conveyer belt 300 of each branch is arranged in the first guide part 141, second of corresponding guide part 140 respectively
Between guide part 142.
First guide part 141 have the first surface parallel with the axial direction of driving wheel 130, the second guide part 142 have with
The parallel second surface of the axial direction of driving wheel 130, conveyer belt 300 are arranged between first surface, second surface.Preferably,
Spacing distance between one guide part 141, the second guide part 142 is slightly larger than the thickness of conveyer belt 300.
First guide part 141, the second guide part 142 are one in directive wheel and baffle, i.e. the first guide part 141 can be with
It is directive wheel or baffle, the second guide part 142 is also possible to directive wheel or baffle, wherein the axial direction of directive wheel, the plate face of baffle
It is axial parallel with driving wheel 130.In the present embodiment, the first guide part 141 is directive wheel, the second guide part 142 is baffle.
Along the radial direction of driving wheel 130, baffle is located at the inside of conveyer belt 300, and directive wheel is located at the outside of conveyer belt 300.
In addition, being additionally provided with a directive wheel 141 backwards to the side of transmission mechanism 200 in driving wheel 130, being used for will such as Fig. 3
Conveyer belt 300 is compressed on driving wheel 130, and the dynamics of compacting is not to interfere the movement of conveyer belt 300 to be limited.
In other embodiments, the position of baffle and directive wheel can be interchanged.First guide part 141, the second guide part 142
It can also all be directive wheel, or all be baffle.
For conveyer belt 300 after spreading out of in driving wheel 130, driving wheel 220, transmission surface is perpendicular to the ground, then when test,
When automobile passes through conveyer belt 300, conveyer belt 300 above ground level is crushed easily, and will also result in jolting for automobile, it is possible to
Damage test device and automobile.
Therefore, the present embodiment is changed the direction on the transmission surface of conveyer belt 300 by commutation portion 150, makes to transmit surface
It is parallel to the ground will transmission surface pivots to parallel to the ground.In the present embodiment, commutation portion 150 can be by the side of conveyer belt 300
To 90 ° of deflections are carried out, so that conveyer belt 300 lies low on the ground, terrain clearance is minimized, automobile can be from transmission when test
300 surface of band passes through.
Commutation portion 150 is at least set on driving pedestal 110 between guide part 140 and driving wheel 220, with to leaning on
The conversion of conveyer belt 300 of nearly driving wheel 130, driving wheel 220 is to direction parallel to the ground.
In the present embodiment, with continued reference to Fig. 2, Fig. 3, for save the cost, commutation portion 150 is arranged in driving mechanism 100.
In 200 side of transmission mechanism, conveyer belt 300 is converted into horizontality from vertical state using natural force.In other embodiments
In, commutation portion 150 also can be set in the transmission base 210 of transmission mechanism 200.
Commutation portion 150 includes the spaced two groups of reversing shafts 151 in direction and axle bed with edge perpendicular to ground
151a, reversing shaft 151 are fixed on axle bed 151a.Reversing shaft 151 is parallel to the ground.Conveyer belt 300 from two groups of reversing shafts 151 it
Between pass through, and the distance between two groups of reversing shafts 151 be not less than conveyer belt thickness, but be less than transmission surface width.It is preferred that
, the distance between two groups of reversing shafts 151 are slightly larger than the thickness of conveyer belt.
Wherein, every group of reversing shaft 151 can be an axis, also may include more axis, more axis can be along axial mutual
Connection, can also radially be arranged side by side.
Further, with continued reference to Fig. 2, Fig. 3, commutation portion 150 further includes reverse wheel 152, is at least set to 151 edge of reversing shaft
The side of the transmission direction of conveyer belt 300.In the present embodiment, reverse wheel 152 is set to reversing shaft 151 towards transmission mechanism 200
The effect of side, reverse wheel 152 is mainly depressed into synchronous belt position close enough from the ground.
Reverse wheel 152 and driving pedestal 110 interval be arranged, the axial direction of reverse wheel 152 is parallel to the ground, conveyer belt 300 from
Reverse wheel 152 passes beneath, and the distance between reversing shaft 151 and driving pedestal 110 are not less than the thickness of conveyer belt, but are less than and pass
Send the width on surface.Preferably, the distance between reversing shaft 151 and driving pedestal 110 are slightly larger than the thickness of conveyer belt 300.
Wherein, reverse wheel 152 is supported on driving pedestal 110 by wheel seat 152a.
In the present embodiment, setting: when the conversion of conveyer belt 300 to state parallel to the ground, the transmission table of conveyer belt 300
Up, i.e., engaging tooth upward, it is opposite with ground.At this point, reverse wheel 152 can be set to gear, when conveyer belt 300 is by changing
To when taking turns 152, the engaging tooth of reverse wheel 152 and conveyer belt 300 is intermeshed, and reverse wheel 152 is moved synchronously with conveyer belt 300,
To improve the accuracy of the movement of conveyer belt 300.Also, conveyer belt 300 has the transmission surface of engaging tooth upward, can protect biography
Sending the engaging tooth of band 300 will not damage because of the friction with ground.
It in other embodiments,, can also be at it for one group of reversing shaft 151 far from ground in two groups of reversing shafts 151
Engaging tooth is arranged in outer surface, engages with conveyer belt 300.In addition, reverse wheel 152 can also not have engaging tooth.
In the present embodiment, the corresponding commutation portion 150 of each branch.In other embodiments, same axle bed can be used to
Reversing shaft in fixed different commutation portions, same wheel seat can also be used to the reverse wheel fixed in different commutation portions.In addition, two
Branch can also share a commutation portion.
Further, further include fixation clip 160 with continued reference to Fig. 2, be set to commutation portion 150 and drive on pedestal 110.Gu
Fixed pressuring plate 160 is between commutation portion 150 and another pedestal, for fixing conveyer belt 300.
In the present embodiment, commutation portion 150 is set to driving pedestal 110, then correspondingly, fixation clip 160 is set to driving base
On seat 110, and between commutation portion 150 and transmission base 210.
In use, fixation clip 160 is pressed in one opposite with pedestal 110 is driven of conveyer belt 300 if test does not start
Side, at this point, conveyer belt 300 cannot move.When test, fixation clip 160 releases the pressure to conveyer belt 300, and conveyer belt 300 can
To be moved under the driving of driving wheel 130.
In the present embodiment, such as Fig. 2, fixation clip 160 extends along the width direction of conveyer belt 300 in the longitudinal direction, and
Through the width direction of conveyer belt 300.One end of 160 length direction of fixation clip and driving pedestal 110 are hinged, and the other end can be with
Hinged end is center of rotation rotation.In other embodiments, fixation clip 160 can also be compressed on biography by dismountable mode
It send on band 300.
Further, referring to Fig. 4, Fig. 5, transmission mechanism 200 further includes cover board 230, is located at driving wheel 220 and transmission base
210 opposite sides, for preventing conveyer belt 300 to be detached from driving wheel 220.
Such as Fig. 4, driving wheel 220 is between cover board 230 and transmission base 210, between cover board 230 and transmission base 210
Distance be slightly larger than driving wheel 220 axial dimension, with do not interfere driving wheel 220 rotate while, avoid 300 edge of conveyer belt
It is axially disengaging driving wheel 220.
Such as Fig. 4-5, transmission base 210 further includes driving wheel support plate 211, and driving wheel 220 is supported in driving wheel support plate
On 211.Wherein, it is additionally provided with fixing lug boss 212 in transmission base 210, leads between driving wheel support plate 211 and fixing lug boss 212
Cross the connection of connecting column 213.
Cover board 230 is supported in driving wheel support plate 211 by pillar 230a.Similarly, in driving mechanism 100, driving
The side opposite with driving pedestal 110 of wheel 130 can also set a cover board, to prevent conveyer belt 300 to be detached from driving wheel 130.
Further, with continued reference to Fig. 4 and Fig. 5 is combined, sliding slot is equipped in cover board 230, is defined as (the figure of first sliding groove 231
5), first sliding groove 231 extends along from transmission mechanism 200 to the direction of driving mechanism 100.
The central axis plane of driving wheel 220 is inserted in first sliding groove 231 to one end of cover board 230, and can be along first sliding groove
231 is mobile.By the movement of driving wheel 220, the rate of tension degree of conveyer belt 300 is adjustable: if conveyer belt 300 is excessively loose, making
Driving wheel 220 is slided along first sliding groove 231 far from driving mechanism 100, is increased between driving mechanism 100 and transmission mechanism 200
Distance；If 300 tension of conveyer belt, make 220 reverse slide of driving wheel, reduces between driving mechanism 100 and transmission mechanism 200
Distance.
In the present embodiment, such as Fig. 4-5, driving wheel 220 slides through tensioned portion 240 to realize.
For tensioned portion 240 for pushing driving wheel 220 to move along the chute, tensioned portion 240 is including lead screw 241 and is set in silk
Feed screw nut 242 outside thick stick 241.
Specifically, driving wheel 220 has central axis 221, and one end that central axis 221 axially faces toward cover board 230, which is higher than, to be passed
Driving wheel 220 has the part of engaging tooth, and lead screw 241 is connect with central axis 221 towards one end of cover board 230, the axial direction of lead screw 241
It is parallel with the length direction of first sliding groove 231.
Feed screw nut 242 is sheathed on outside lead screw 241, also, feed screw nut 242 is constant relative to the position of cover board 230.Make
Used time, rotational lead screw nut 242, since the position of feed screw nut 242 is fixed, then the rotary motion of feed screw nut 242 will turn
The linear motion of lead screw 241 is turned to, so that driving wheel 220 be pushed to slide along first sliding groove 231.
Wherein, in some embodiments, feed screw nut 242 can be pivotally supported at transmission base by support portion
210 or cover board 230 on.
In the present embodiment, lead screw 241 is rotatably penetrated and arranged in cover board 230, and is stretched out in one end far from central axis 221
Cover board 230.Feed screw nut 242 is set to the part that lead screw 241 stretches out cover board 230, is resisted against on cover board 230.Feed screw nut as a result,
242 position is fixed.
Such as Fig. 4-5, also be provided with sliding slot in driving wheel support plate 211, be defined as second sliding slot 211a, second sliding slot 211a with
First sliding groove 231 is parallel and along the axially opposing of driving wheel, and central axis 221 axially faces toward one end of driving wheel support plate 211
It higher than driving wheel 220 and is inserted in second sliding slot 211a, can be slided along second sliding slot 211a.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (9)
1. a kind of automobile active pedestrian collision avoidance test device, which is characterized in that including spaced driving mechanism, driver
Structure is wrapped with conveyer belt between the driving mechanism, transmission mechanism, further includes commutation portion, and the commutation portion is for changing described
The direction on the transmission surface of the transmission belt between driving mechanism and the transmission mechanism, so that the driving mechanism and the transmission
The conveyer belt between mechanism is laid in the plane of travel of automobile；
The conveyer belt is sequentially connected respectively with the driving mechanism, the transmission mechanism, is driven by the driving mechanism, with
It is driven between the driving mechanism and the transmission mechanism；
Walking mechanism, for dummy to be arranged, the walking mechanism is set on the conveyer belt, is moved with the conveyer belt；
The driving mechanism includes: the driving portion and coaxially connected in described for driving pedestal, being installed on the driving pedestal
The driving wheel of driving portion output end；The transmission mechanism includes transmission base, and the transmission being installed in the transmission base
Wheel；The conveyer belt and the driving wheel, the driving wheel are sequentially connected, and pass through the rotation of the driving wheel, the driving wheel
Transmission；
The conveyer belt is in a ring, to be sheathed on the driving wheel, the driving wheel outer and have and the driving wheel, the transmission
The transmission surface of the periphery face contact of wheel, and moved by the rotate driving of the driving wheel；The conveyer belt includes being located at
Two branches of the driving wheel radially opposite sides, the walking mechanism are located therein the branch road；
The transmission mechanism further includes cover board, the side opposite with the transmission base positioned at the driving wheel, for preventing
It states conveyer belt and is detached from the driving wheel；Sliding slot is equipped in the cover board, the sliding slot is along the transmission mechanism to the driving machine
The direction of structure extends；The central axis plane of the driving wheel is inserted in the sliding slot to one end of the cover board, and can be along described
Sliding slot is mobile；
It further include tensioned portion, for pushing the driving wheel to move along the sliding slot, the tensioned portion includes: lead screw, and described
Central axis plane is connected to one end of the cover board, and the axial direction of the lead screw is radial parallel with the driving wheel；Feed screw nut, set
Outside the lead screw, the feed screw nut is constant relative to the position of the cover board；The lead screw is rotatably penetrated and arranged in institute
It states in cover board, and stretches out the cover board in one end far from the central axis；The feed screw nut is set to the lead screw and stretches out institute
The part of cover board is stated, and is resisted against on the cover board.
2. automobile active pedestrian collision avoidance test device as described in claim 1, which is characterized in that also set on the driving pedestal
There is guide part, the guide part is set between the driving wheel, the driving wheel and close to the driving wheel, is used for the biography
Surface is sent to keep axial parallel with the driving wheel, every branch respectively corresponds a guide part；
The guide part includes the first guide part along the radial arrangement of the driving wheel, the second guide part respectively, described
The distance between first guide part, second guide part are less than the width on the transmission surface of the conveyer belt；
First guide part has the first surface parallel with the axial direction of the driving wheel, and second guide part has and institute
The parallel second surface of the axial direction of driving wheel is stated, the conveyer belt is arranged between the first surface, second surface.
3. automobile active pedestrian collision avoidance test device as claimed in claim 2, which is characterized in that first guide part,
Two guide parts are one in directive wheel and baffle；
The plate face of axial, the described baffle of the directive wheel is axial parallel with the driving wheel.
4. automobile active pedestrian collision avoidance test device as claimed in claim 2, which is characterized in that the commutation portion makes described
The transmission surface between driving mechanism and the transmission mechanism is parallel with the plane of travel of automobile；
The commutation portion is equipped with described change between the guide part and the driving wheel at least on the driving pedestal
To portion；
The commutation portion includes the spaced two groups of reversing shafts in direction with edge perpendicular to the plane of travel, the reversing shaft
Parallel with the plane of travel, the conveyer belt is passed through between two groups of reversing shafts, between two groups of reversing shafts away from
From the width for being less than the transmission surface.
5. automobile active pedestrian collision avoidance test device as claimed in claim 4, which is characterized in that the commutation portion further includes changing
To wheel, the reversing shaft is at least set to along the side of the transmission direction of the conveyer belt；
The reverse wheel is arranged with corresponding pedestal interval, and the axial direction of the reverse wheel is parallel with the plane of travel, the biography
Band is sent to pass through between the reverse wheel and corresponding pedestal, the distance between the reversing shaft and corresponding pedestal are less than described
Transmit the width on surface.
6. automobile active pedestrian collision avoidance test device as claimed in claim 4, which is characterized in that each branch corresponding one is changed
To portion, alternatively, two branches share a commutation portion.
7. automobile active pedestrian collision avoidance test device as claimed in claim 4, which is characterized in that it further include fixation clip, if
In on the pedestal where the commutation portion；
The fixation clip is between the commutation portion and another pedestal, for fixing the conveyer belt.
8. automobile active pedestrian collision avoidance test device as described in claim 1, which is characterized in that the conveyer belt is straight line
Shape, and be sequentially connected by way of engaging with the driving wheel, driving wheel respectively.
9. such as automobile active pedestrian collision avoidance test device of any of claims 1-8, which is characterized in that the transmission
Band is synchronous belt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510729057.XA CN106644496B (en) | 2015-10-30 | 2015-10-30 | Automobile active pedestrian's collision avoidance test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729057.XA CN106644496B (en) | 2015-10-30 | 2015-10-30 | Automobile active pedestrian's collision avoidance test device |
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| CN106644496A CN106644496A (en) | 2017-05-10 |
| CN106644496B true CN106644496B (en) | 2019-11-12 |
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| CN201510729057.XA Active CN106644496B (en) | 2015-10-30 | 2015-10-30 | Automobile active pedestrian's collision avoidance test device |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109000937B (en) * | 2018-09-21 | 2019-05-17 | 吉林大学 | A kind of pedestrian's autonomous collision avoidance experimental test platform |
| CN109443799A (en) * | 2018-12-06 | 2019-03-08 | 爱驰汽车有限公司 | For testing the apparatus and system of vehicle AEB-VRU function |
| CN111445580B (en) * | 2018-12-28 | 2023-05-05 | 天津科技大学 | Construction method and system of six-year-old child pedestrian natural walking pose finite element model suitable for Euro NCAP |
| CN111610035B (en) * | 2020-04-24 | 2022-03-18 | 曲亚文 | AEB pedestrian anticollision test drags chassis |
| CN112229644A (en) * | 2020-09-14 | 2021-01-15 | 武汉博格纳科技有限公司 | Dummy toppling protection system for vehicle test and control method |
| CN113432890A (en) * | 2021-06-24 | 2021-09-24 | 长春汽车工业高等专科学校 | Testing device for automobile active collision avoidance sensing technical equipment |
| CN113820145B (en) * | 2021-11-24 | 2022-02-11 | 北京智能车联产业创新中心有限公司 | Road intrusion safety detection system and detection method for automatic driving automobile |
| CN114383863A (en) * | 2021-12-07 | 2022-04-22 | 甘华 | Detection device for active braking system of unmanned automobile |
| CN114624036B (en) * | 2022-05-12 | 2022-08-02 | 中汽研汽车检验中心(宁波)有限公司 | Testing device and testing method for automatic emergency braking system |
| CN114608843B (en) * | 2022-05-12 | 2022-07-26 | 中汽研汽车检验中心(宁波)有限公司 | Driving device with tape collecting function and tape collecting method |
| CN117330331B (en) * | 2023-10-30 | 2024-03-12 | 南方(韶关)智能网联新能源汽车试验检测中心有限公司 | Intelligent driving test platform system |
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