CN109540554A - A kind of Air Suspension for Commercial Vehicles System Functional Test rack and system - Google Patents
A kind of Air Suspension for Commercial Vehicles System Functional Test rack and system Download PDFInfo
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- CN109540554A CN109540554A CN201910006495.1A CN201910006495A CN109540554A CN 109540554 A CN109540554 A CN 109540554A CN 201910006495 A CN201910006495 A CN 201910006495A CN 109540554 A CN109540554 A CN 109540554A
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- 239000000725 suspension Substances 0.000 title claims abstract description 106
- 238000011990 functional testing Methods 0.000 title claims abstract description 40
- 238000012360 testing method Methods 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 14
- 230000001737 promoting effect Effects 0.000 claims description 12
- 238000011217 control strategy Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 9
- 238000012827 research and development Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 241000209140 Triticum Species 0.000 description 2
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- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 230000003319 supportive effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
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Abstract
The invention discloses a kind of Air Suspension for Commercial Vehicles System Functional Test rack and systems.The testboard bay include chassis skeleton, wheel, suspension arrangement and after promote axle assembly；Wheel is mounted on the skeleton of chassis by suspension arrangement；Axle assembly is promoted afterwards to connect with chassis skeleton；Chassis skeleton includes at least two U-shaped portal frames, support frame and several connecting rods；Column between U-shaped portal frame passes through the removable connection of at least one connecting rod；Support frame connect with the uprights vertical of U-shaped portal frame and prolongs Shen to wheel direction；Suspension arrangement is mounted on the skeleton of chassis by connecting rod and support frame, and rear promoted after axle assembly includes promotes bridge bracket, lift bridge, at least one cylinder and two air springs；Air spring is symmetricly set on cylinder two sides.The present invention can dynamic analog draw up the motion state of vehicle body, suspension arrangement, wheel when vehicle driving is on different road surfaces, and then convenient for optimizing the control strategy of airsuspension system according to the motion state parameters of vehicle body, suspension arrangement, wheel.
Description
Technical field
The present invention relates to airsuspension system functional test technical fields, and in particular to a kind of Air Suspension for Commercial Vehicles system
Functional test rack and system.
Background technique
Currently, vehicle air suspension system can not only bumper and absorbing shock, and can be according to the load control of road conditions and vehicle
The height of vehicle chassis processed to not only improve the comfort and passability of vehicle, but also avoids vehicle and is running over
Encounter the chassis of rugged road damage vehicle in journey, the significant increase safety of vehicle, thus vehicle air suspension
System has obtained the favor of users.
In vehicle air suspension system R&D process, it is even more important to the test of its function.Existing air suspension system
Functional test platform of uniting is mainly bench type testing stand, which includes four-post frame frame, upper cover plate, lower cover plate and function
Can mechanism, functional entity (including air compressor, storage cylinder, air spring, damper, solenoid valve block, information acquisition unit,
ECU control unit etc.) it is mounted in frame.Can only test airsuspension system by the bench type testing stand receive and just
It really executes instruction, can not simulate and adjust air spring rear, the motion state of air suspension and tire.And work as vehicle driving
When in different road conditions, the motion state of vehicle body, air suspension and tire can change, and be needed at this time to air suspension system
System takes different control strategies.It can be seen that existing airsuspension system functional test platform is not able to satisfy vehicle sky
The research and development demand of gas suspension system.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
State a kind of Air Suspension for Commercial Vehicles System Functional Test rack and system of problem.
According to one aspect of the present invention, a kind of Air Suspension for Commercial Vehicles System Functional Test rack, the test are provided
Rack include chassis skeleton, wheel, suspension arrangement and after promote axle assembly；The wheel is mounted on institute by the suspension arrangement
It states on the skeleton of chassis；Axle assembly is promoted after described to connect with the chassis skeleton；
Chassis skeleton includes at least two U-shaped portal frames, support frame and several connecting rods；Between the U-shaped portal frame
Column passes through at least one described removable connection of connecting rod；Support frame as described above is connect with the uprights vertical of the U-shaped portal frame
And prolong Shen to wheel direction；The suspension arrangement is mounted on the chassis skeleton by the connecting rod and support frame as described above；
It is promoted after described after axle assembly includes and promotes bridge bracket, lift bridge, at least one cylinder and two air springs；The air bullet
Spring is symmetricly set on the cylinder two sides, and one end of the air spring is connect with the rear bridge bracket that promoted, the other end and institute
State lift bridge connection；One end of the cylinder is connect with the rear bridge bracket that promoted, and the other end is connect with the lift bridge.
Preferably, the column of the U-shaped portal frame and the connecting rod slidable connection；
Preferably, the column slidable connection of support frame as described above and the U-shaped portal frame.
Preferably, the U-shaped portal frame, the connecting rod and support frame as described above include sliding groove structure.
Preferably, support frame as described above corresponds to the suspension arrangement corresponding position and is provided with transverse connecting rod or longitudinally connected
Bar.
Preferably, the U-shaped portal frame, the connecting rod and support frame as described above include adjustably adjusting structure.
Preferably, support frame as described above is for carrying counterweight.
According to one aspect of the present invention, a kind of Air Suspension for Commercial Vehicles System Functional Test system, the test are provided
System includes that at least one air compressor, storage cylinder, solenoid valve block, detection unit, ECU control unit and above-mentioned air are outstanding
Frame System Functional Test rack；The air compressor passes sequentially through the storage cylinder, the solenoid valve block and the suspension and fills
The air spring assembly and/or the rear air spring for promoting axle assembly set are connected with cylinder；
The air spring assembly, the air spring and the cylinder are correspondingly arranged on the detection unit；Each institute
It states ECU control unit and is respectively connected with the corresponding detection unit and the solenoid valve block；
The detection unit is used to detect the elevation information and/or the rear height letter for promoting axle assembly of the chassis skeleton
Breath, and the elevation information is sent to ECU control unit；And for detecting the air spring assembly, the air bullet
The pressure information of spring and the cylinder, and the pressure information is sent to ECU control unit；
The ECU control unit, the elevation information and/or pressure information sent for receiving the detection unit, by institute
It states elevation information and/or pressure information to be compared with corresponding threshold value, is sent and controlled to the solenoid valve block according to comparison result
Signal processed；
The solenoid valve block controls the air spring of the suspension arrangement for being operated according to the control signal
The stroke or stretching speed of component and/or the rear air spring for promoting axle assembly and cylinder, to control chassis skeleton
Or the adjustable height or lifting speed of rear lift bridge.
Preferably, the test macro further includes wireless communication module and remote controler, and the remote controler passes through described wireless
Communication module and the ECU carry out data communication；
The wireless communication module, the control signal sent for receiving the remote controler, and the control signal is sent out
It send to the ECU.
Preferably, the test macro further includes display screen, and the display screen is connect with the ECU, for showing air
The state and operating parameter of each device in suspension system function test system.
The beneficial effects of the present invention are: technical solution of the present invention passes through one chassis skeleton of design, and pass through suspension arrangement
Wheel is fixed on the chassis skeleton, the vehicle body when vehicle driving is on different road surfaces is drawn up so as to dynamic analog, hangs
The motion state of hang device, wheel, so it is outstanding convenient for optimizing air according to the motion state parameters of vehicle body, suspension arrangement, wheel
The control strategy of frame system promotes the performance of airsuspension system.The airsuspension system functional test rack can both be applied
Good developmental achievement is exported in the technical research stage convenient for the control strategy of the R&D personnel optimization airsuspension system；
It can also apply in the experimental teaching stage, the structure composition and the course of work of airsuspension system are demonstrated convenient for teachers'action,
Reinforce the understanding and operational capacity of student.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows one of according to an embodiment of the present invention Air Suspension for Commercial Vehicles System Functional Test rack
Schematic perspective view；
Fig. 2 shows the structural schematic diagrams of one of according to an embodiment of the present invention chassis skeleton；
Fig. 3 shows one of according to an embodiment of the present invention support frame structure diagram；
Fig. 4 shows another support frame structure diagram according to an embodiment of the present invention；
Fig. 5 shows the scheme of installation of one of according to an embodiment of the present invention double yoke suspension arrangements；
Fig. 6 shows the scheme of installation of one of according to an embodiment of the present invention McPherson arm sling hang device；
Fig. 7 shows another Air Suspension for Commercial Vehicles System Functional Test rack according to an embodiment of the present invention
Schematic perspective view；
Fig. 8 shows the structural schematic diagram of one of according to an embodiment of the present invention rear lift bridge；
Fig. 9 shows one of according to an embodiment of the present invention Air Suspension for Commercial Vehicles System Functional Test system
Illustrative view of functional configuration；
In figure: 100, airsuspension system functional test rack；110, chassis skeleton；111, U-shaped portal frame；112, it supports
Frame；1121, transverse connecting rod；1122, longitudinally connected bar；113, connecting rod；120, wheel；130, suspension arrangement；131, double forks
Arm-type suspension arrangement；1311, upper swing arm；1312, lower swing arm；1313, air spring assembly；132, MacPherson type suspension arrangement；
1321, lower swing arm；1322, air spring assembly；133, multi link suspension arrangement；140, axle assembly is promoted afterwards；141, rear to be promoted
Bridge bracket；142, lift bridge；143, cylinder；144, air spring；200, airsuspension system function test system；210, air
Compressor；220, storage cylinder；230, solenoid valve block；240, detection unit；250, ECU control unit；260, wireless communication module；
270, remote controler；280, display screen.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Fig. 1 shows one of according to an embodiment of the present invention Air Suspension for Commercial Vehicles System Functional Test rack
Schematic perspective view, as shown in Figure 1, airsuspension system functional test rack 100 includes chassis skeleton 110,120 and of wheel
Suspension arrangement 130；Wheel 120 is mounted on chassis skeleton 110 by suspension arrangement 130；The quantity of suspension arrangement and wheel
Quantity may be corresponding, it is also possible to not be corresponding.For example, the quantity of wheel is 4, the quantity of suspension arrangement is 2, is hanged
Hang device corresponds to two wheels setting of back axle.The quantity of wheel and suspension arrangement is 4, and each wheel is correspondingly arranged on one
A suspension arrangement.The application is not further limited the quantity of wheel and suspension arrangement.Fig. 2 shows according to the present invention one
The structural schematic diagram of one of a embodiment chassis skeleton, as shown in Fig. 2, chassis skeleton 110 includes at least two U-shaped gantry
Frame 111, support frame 112 and several connecting rods 113；Column between two U-shaped portal frames 111 passes through at least one connecting rod
113 removable connections；Support frame 112 connect with the uprights vertical of U-shaped portal frame 111 and prolongs Shen to wheel direction；Suspension arrangement
130 are mounted on chassis skeleton 110 by connecting rod 113 and support frame 112.
It follows that technical solution of the present invention passes through one chassis skeleton of design, and wheel is installed by suspension arrangement
It is fixed on the chassis skeleton, draws up vehicle body, suspension arrangement, wheel when vehicle driving is on different road surfaces so as to dynamic analog
Motion state, and then convenient for according to the motion state parameters of vehicle body, suspension arrangement, wheel optimize airsuspension system control
Strategy promotes the performance of airsuspension system.The airsuspension system functional test rack can both have been applied in technical research rank
Section exports good developmental achievement convenient for the control strategy of the R&D personnel optimization airsuspension system；It can also apply
The experimental teaching stage reinforces the reason of student convenient for the structure composition and the course of work of teachers'action demonstration airsuspension system
Solution and operational capacity.
In one embodiment of the invention, the column of U-shaped portal frame 111 and 113 slidable connection of connecting rod, convenient for upper
The lower position for adjusting connecting rod, to adapt to the self-characteristic of the suspension arrangement of different model.Certainly, U-shaped portal frame 111 is vertical
Column can also be fixedly connected with connecting rod 113.
In one embodiment of the invention, the column slidable connection of support frame 112 and U-shaped portal frame 111, works as adjusting
When the position of connecting rod still can not make the flexible stroke of suspension arrangement reach best, up and down adjustment support frame can be passed through
112 position on the column of U-shaped portal frame 111 makes the flexible stroke of suspension arrangement reach best.It is of course also possible to not
In the case that the position of connecting rod 113 is adjusted, position of the support frame on U-shaped 111 column of portal frame is directly adjusted, is made
The flexible stroke for obtaining suspension arrangement reaches best.Specifically, in order to enable the column of U-shaped portal frame 111 can be slided with connecting rod 113
Dynamic connection, the column slidable connection of support frame 112 and U-shaped portal frame 111, U-shaped portal frame 111, connecting rod 113 and support frame
112 include sliding groove structure.It should be noted that U-shaped portal frame 111 and support frame 112 can also be by 113 structures of connecting rod
At in this case, connecting rod 113 has sliding groove structure.
By above-mentioned two embodiment it is found that the length and height of chassis skeleton are adjustable, to can not only simulate
The state of the vehicle of different wheelbases, wheelspan, and the suspension arrangement of installation different form, different trips is realized, therefore the sky
Gas suspension system functional test rack is applicable not only to the airsuspension system functional test of passenger car, and is suitable for commercial vehicle
Airsuspension system functional test, have a wide range of application.
In one embodiment of the invention, Fig. 3 shows one of according to an embodiment of the present invention support frame knot
Structure schematic diagram, Fig. 4 show another support frame structure diagram according to an embodiment of the present invention, as shown in figure 3, branch
Corresponding 130 corresponding position of suspension arrangement of support 112 is provided with transverse connecting rod 1121, and transverse connecting rod 1121 is for connecting suspension
Air spring assembly in device 130.As shown in figure 4, corresponding 130 corresponding position of suspension arrangement of support frame 112 is provided with longitudinal direction
Connecting rod 1122, longitudinally connected bar 1122 are used to connect the air spring assembly in suspension arrangement 130.
It should be noted that Fig. 3 and support frame structure shown in Fig. 4 are grid type structure, but grid-type and triangular form
Etc. structures it is within the scope of the present invention, as long as support frame can guarantee the air spring assembly in suspension arrangement just
Often installation, the application are not further limited the structure of support frame.
In one embodiment of the invention, U-shaped portal frame 111, connecting rod 113 and support frame 112 include scalable knot
The length of U-shaped portal frame 111, connecting rod 113 and support frame 112 can be adjusted by adjusting retractable structure, thus more in structure
Easily simulate the length and height of different vehicle bodies.By the embodiment it is found that the length and height of chassis skeleton are adjustable
Section to can not only simulate the state of the vehicle of different wheelbases, wheelspan, but also realizes installation different form, different trips
Suspension arrangement, therefore the airsuspension system functional test rack be applicable not only to passenger car airsuspension system function survey
Examination, and it is suitable for the airsuspension system functional test of commercial vehicle, have a wide range of application.
Different vehicle counterweights corresponds to the control strategy of different airsuspension systems, for example, if being maintained at vehicle body
Sustained height need to increase the air pressure value inside air spring when the counterweight of vehicle is gradually increased.In the prior art, it is
The relationship between air pressure value inside determining vehicle difference counterweight and air spring, in the guiding of air spring damper
Mechanical spring is added on bar, simulates counterweight by changing the stroke of mechanical spring.But it is carried out to airsuspension system
During test, when the stroke of air spring changes, the stroke of mechanical spring also changes therewith, so that vehicle
It changes with weight values, so that test result is inaccurate.
In order to solve the above-mentioned technical problem, in one embodiment of the invention, mass is carried by support frame 112
Body.During airsuspension system test, it can arbitrarily change the weight of counterweight, and counterweight according to actual requirement
The weight of object will not follow the stroke of air spring to change, to improve the measuring accuracy of airsuspension system function.
Further, suspension arrangement 130 includes double fork arm type equal suspension arrangements 131, MacPherson type suspension arrangement 132 and Duo Lian
Bar suspension arrangement 133, below by taking double fork arm type equal suspension arrangements 131 and MacPherson type suspension arrangement 132 as an example, in chassis skeleton
Suspension arrangement 130 is installed to be explained on 110:
(1) double fork arm type equal suspension arrangements 131 are installed on chassis skeleton 110.
Fig. 5 shows the scheme of installation of one of according to an embodiment of the present invention double yoke suspension arrangements；Double forks
Arm-type suspension arrangement 131 mainly includes upper swing arm 1311, lower swing arm 1312, air spring assembly 1313；When in chassis skeleton 110
When upper installation pair fork arm type equal suspension arrangement 131, U-shaped portal frame 111 passes through two removable connections of connecting rod 113, double fork arm type equals
The upper swing arm 1311 and lower swing arm 1312 of suspension arrangement 131 are movably hinged with connecting rod 113 respectively；Air spring assembly 1313 wraps
Air spring 1313_1 and damper 1313_2 are included, as air spring 1313_1 and damper 1313_2 coaxial, air spring
1313_1 is socketed on the connecting rod of damper 1313_2, and one end of air spring assembly 1313 is movably articulated in lower swing arm 1312
On, the other end is movably articulated on support frame 112；When air spring 1313 and not coaxial damper 1314, damper 1313_
2 one end is movably articulated on lower swing arm 1312, and the other end is movably articulated on support frame 112；The one of air spring 1313_1
End is movably articulated on lower swing arm 1312, and the other end is movably articulated on support frame 112；Air spring air spring 1313_1 with
The expansion space of air spring 1313_1 is reserved between damper 1313_2.
(2) MacPherson type suspension arrangement 132 is installed on chassis skeleton 110.
Fig. 6 shows the scheme of installation of one of according to an embodiment of the present invention McPherson arm sling hang device, wheat
Fu Xunshi suspension arrangement 132 includes mainly lower swing arm 1321 and air spring assembly 1322, when installing wheat on chassis skeleton 110
When Fu Xunshi suspension arrangement 132, U-shaped portal frame 111 passes through a removable connection of connecting rod 113；Lower swing arm 1321 with connect
Bar 113 is movably hinged；Air spring assembly 1322 includes air spring 1322_1 and damper 1322_2, works as air spring
When 1322_1 and damper 1322_2 coaxial, one end of air spring assembly 1322 is movably articulated on lower swing arm 1321, another
End is movably articulated on support frame 112；As air spring 1322_1 and damper 1322_2 not coaxial, damper 1322_2's
One end is movably articulated on lower swing arm 1321, and the other end is movably articulated on support frame 112；One end of air spring 1322_1 is living
Dynamic to be hinged on lower swing arm 1321, the other end is movably articulated on support frame 112；Air spring 1322_1 and damper 1322_2
Between be reserved with the expansion space of air spring 1322_1.
It should be noted that if what is currently installed on chassis skeleton 110 is MacPherson type suspension arrangement 132,
When continuing to install double fork arm type equal suspension arrangements 131 on chassis skeleton 110, continue that a company is installed between U-shaped portal frame 111
Extension bar 113.If what is currently installed on chassis skeleton 110 is double fork arm type equal suspension arrangements 131, in chassis skeleton
When continuing that MacPherson type suspension arrangement 132 is installed on 110, can will corresponding double 131 upper swing arms 1311 of fork arm type equal suspension arrangement or
The corresponding connecting rod 113 of person's lower swing arm 1312 disassembles, or do not dismantle double 131 upper swing arms 1311 of fork arm type equal suspension arrangement or
The corresponding connecting rod 113 of person's lower swing arm 1312 regard upper swing arm 1311 or lower swing arm 1312 as MacPherson type suspension arrangement 132
Lower swing arm 1321.In addition, when installing multi link suspension arrangement 133 on chassis skeleton 110, according to multi link suspension arrangement
133 architectural characteristic adapts to quantity, position and the length of setting connecting rod 113, while adapting to adjust the height of support frame 112,
To which multi link suspension arrangement 133 is installed in success on chassis skeleton 110.Technical solution of the present invention can according to need the bottom of at
Double fork arm type equal suspension arrangements 131, MacPherson type suspension arrangement 132 and multi link suspension arrangement 133 are installed, no on disk skeleton 110
The research and development demand that only can satisfy technical staff also can satisfy the demonstration demand of school experiment platform.
In the prior art, promoting axle assembly afterwards mainly applies air spring as lifting assembly, while being additionally air
Guide frame is arranged in spring, and structure is complex.For lift bridge after simplification structure simultaneously guarantee after lift bridge normal function,
Fig. 7 shows the three-dimensional knot of another Air Suspension for Commercial Vehicles System Functional Test rack according to an embodiment of the present invention
Structure schematic diagram, Fig. 8 show the structural schematic diagram of one of according to an embodiment of the present invention rear lift bridge；As Fig. 7-8 institute
Show, airsuspension system functional test rack 100 promotes axle assembly 140 after further including, rear to promote axle assembly 140 and chassis skeleton
110 connections；It is promoted after axle assembly 140 includes afterwards and promotes bridge bracket 141, lift bridge 142, at least one cylinder 143 and at least two
A air spring 144；Two air springs 144 are symmetricly set on cylinder two sides 143, one end of air spring 144 and rear promotion
Bridge bracket 141 connects, and the other end is connect with lift bridge 142；One end of cylinder 143 is connect with the rear bridge bracket 141 that promoted, the other end
It is connect with lift bridge 142.
The course of work for promoting axle assembly 140 afterwards is as follows:
(1) when vehicle full-load run, the rear wheel promoted in axle assembly 140 travels on the ground, two air springs
144 are in inflated condition, and the piston of two cylinders 143 is in the rear gravity and two air springs for promoting axle assembly 140 at this time
Tensional state is under 144 supporting role, the wheel promoted in axle assembly 140 after support travels on the ground.
(2) when vehicle is converted from full load condition to vehicle zero load or light condition, air spring 144 starts to deflate,
Cylinder 143 starts to inflate simultaneously, and axle assembly 140 is promoted after 143 piston driving of cylinder and is moved upwards, from then lift bridge assembly
140 are raised.
(3) when vehicle is transformed to full load condition from light condition, cylinder 143 starts to deflate, while air spring 144
Start to inflate, air spring 144 drive after promoted axle assembly 140 move downward, from then lift bridge assembly 140 wheel with
Ground face contact.
It can be seen that air spring plays a supportive role in technical solution of the present invention, cylinder plays promotion and guiding role, phase
It is just able to achieve enhanced feature than guide frame need to additionally be arranged in rear lift bridge in the prior art, simplifies the knot of rear lift bridge
Structure is more applicable for research and development test phase or teaching demonstration stage.
In the present embodiment, still as shown in figure 8, the quantity of air spring 144 and cylinder 143 is two, on lift bridge
It is provided with support plate, two cylinders 143 are symmetricly set on along the longitudinal direction in the support plate, and two air springs 144 are along left and right
Direction is symmetricly set in the support plate with two cylinders 143, and air bullet is arranged using symmetrical structure in technical solution of the present invention
Spring 144 and cylinder 143 can prevent unbalance stress from causing after promoted axle assembly at work after lift bridge occur pitch or
The state that person or so rolls.
In another embodiment of the present invention, air spring 144 is two, and cylinder 143 is one, is arranged on lift bridge
There is support plate, the center of support plate is arranged in cylinder 143, and two air springs 144 are symmetricly set on gas in left-right direction
143 left and right sides of cylinder.The course of work for promoting axle assembly 140 afterwards is identical as upper one embodiment, and identical content repeats no more.This
Apply not being further limited the quantity of air spring and cylinder in rear promotion axle assembly and position, as long as mentioning after guaranteeing
Axle assembly is risen to work normally.
Fig. 9 shows one of according to an embodiment of the present invention Air Suspension for Commercial Vehicles System Functional Test system
Illustrative view of functional configuration, as shown in figure 9, airsuspension system function test system 200 includes at least one air compressor
210, storage cylinder 220, solenoid valve block 230, detection unit 240, ECU control unit 250 and air suspension as Figure 1-Figure 8
System Functional Test rack 100；Air compressor 210 passes sequentially through storage cylinder 220, solenoid valve block 230 and suspension arrangement 130
Air spring assembly (1313 or 1322) and/or the rear air spring 144 for promoting axle assembly 140 and cylinder 143 connect；
Air spring assembly (1313 or 1322), air spring 144 and cylinder 143 are correspondingly arranged on detection unit 240；
Each ECU control unit 250 is respectively connected with corresponding detection unit 240 and solenoid valve block 230；
Detection unit 240 is used to detect the elevation information and/or the rear height letter for promoting axle assembly 140 of chassis skeleton 110
Breath, and the elevation information is sent to ECU control unit 250；And for detect air spring assembly (1313 or 1322),
The pressure information of air spring 144 and cylinder 143, and the pressure information is sent to ECU control unit 250；
ECU control unit 250, for receiving the elevation information and/or pressure information of the transmission of detection unit 240, by the height
Degree information and/or pressure information are compared with corresponding threshold value, send control letter to solenoid valve block 230 according to comparison result
Number；
Solenoid valve block 230 controls the air spring assembly of suspension arrangement 130 for being operated according to the control signal
The stroke or stretching speed of (1313 or 1322) and/or the rear air spring 144 for promoting axle assembly 140 and cylinder 143,
To control the adjustable height or lifting speed of chassis skeleton or rear lift bridge.
In the present embodiment, air compressor 210, storage cylinder 220, solenoid valve block 230, detection unit 240, ECU control are single
Member 250 is mounted on chassis skeleton 110, and air compressor 210, storage cylinder 220, solenoid valve block 230, detection unit 240,
The weight of ECU control unit 250 it is known that when needing to place counterweight on support frame 112, if air compressor 210,
Storage cylinder 220, solenoid valve block 230, detection unit 240, the weight of ECU control unit 250 on the quality of counterweight influence compared with
Greatly, then the quality of above-mentioned device to be included in the quality of counterweight；If air compressor 210, storage cylinder 220, solenoid valve
Group 230, detection unit 240, the weight of ECU control unit 250 are smaller on the influence of the quality of counterweight, then without will be above-mentioned
The quality of device is included in the quality of counterweight.
In implementing at of the invention one, airsuspension system function test system 200 further includes wireless communication module 260
With remote controler 270, module 260 and ECU control unit 250 carry out data communication to remote controler 270 by wireless communication；Wireless communication
The control signal for receiving the control signal of the transmission of remote controler 270, and is sent to ECU control unit 250 by module 260.Nothing
Line communication module 260 includes NB-IoT module, RF wireless module, WiFi module, bluetooth module or zigbee module etc..
In implementing at of the invention one, airsuspension system function test system 200 further includes display screen 280, display
Screen 280 is connect with ECU control unit 250, for showing the state and fortune of each device in airsuspension system function test system
Row parameter.In practical applications, it can use remote controler and send control instruction to such as calibration control instruction, and in display screen
The state and operating parameter that each period in airsuspension system function test system is shown on 280, to solve technical research
Personnel when being demarcated to airsuspension system can only time-consuming and laborious problem caused by more people's manual engagements, reduce tester
Cost of labor.When the airsuspension system function test system is applied in teaching field, student can be allowed to be intuitive to see
The state and operating parameter of each period in airsuspension system function test system.
In conclusion technical solution of the present invention passes through one chassis skeleton of design, and wheel is installed by suspension arrangement
It is fixed on the chassis skeleton, draws up vehicle body, suspension arrangement, wheel when vehicle driving is on different road surfaces so as to dynamic analog
Motion state, and then convenient for according to the motion state parameters of vehicle body, suspension arrangement, wheel optimize airsuspension system control
Strategy promotes the performance of airsuspension system.The airsuspension system functional test rack can both have been applied in technical research rank
Section exports good developmental achievement convenient for the control strategy of the R&D personnel optimization airsuspension system；It can also apply
The experimental teaching stage reinforces the reason of student convenient for the structure composition and the course of work of teachers'action demonstration airsuspension system
Solution and operational capacity.In addition, the length and height of chassis skeleton are adjustable, to can not only simulate different wheelbases, wheelspan
Vehicle state, and realize the suspension arrangement of installation different form, different trips, therefore the airsuspension system function
Testboard bay is applicable not only to the airsuspension system functional test of passenger car, and is suitable for the airsuspension system of commercial vehicle
Functional test has a wide range of application.
Finally it should be noted that these are only the preferred embodiment of the present invention, it is not intended to limit guarantor of the invention
Range is protected, although present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art,
It still can modify to technical solution documented by aforementioned a embodiment, or carry out to part of technical characteristic etc.
With replacement.Any modification, equivalent substitution, improvement and etc. done within the spirit and principles of the present invention, are all contained in this hair
In bright protection scope.
Claims (10)
1. a kind of Air Suspension for Commercial Vehicles System Functional Test rack, which is characterized in that the testboard bay includes chassis skeleton, vehicle
Wheel, suspension arrangement and after promote axle assembly；The wheel is mounted on the chassis skeleton by the suspension arrangement；After described
Axle assembly is promoted to connect with the chassis skeleton；
Chassis skeleton includes at least two U-shaped portal frames, support frame and several connecting rods；Column between the U-shaped portal frame
Pass through the removable connection of connecting rod described at least one；Support frame as described above connect with the uprights vertical of the U-shaped portal frame and to
Prolong Shen in wheel direction；The suspension arrangement is mounted on the chassis skeleton by the connecting rod and support frame as described above；
It is promoted after described after axle assembly includes and promotes bridge bracket, lift bridge, at least one cylinder and two air springs；The sky
Gas spring is symmetricly set on the cylinder two sides, and one end of the air spring is connect with the rear bridge bracket that promoted, the other end
It is connect with the lift bridge；One end of the cylinder is connect with the rear bridge bracket that promoted, and the other end is connect with the lift bridge.
2. airsuspension system functional test rack as described in claim 1, which is characterized in that the U-shaped portal frame is stood
Column and the connecting rod slidable connection.
3. airsuspension system functional test rack as described in claim 1, which is characterized in that support frame as described above and the U
The column slidable connection of type portal frame.
4. the airsuspension system functional test rack as described in claim 2-3, the U-shaped portal frame, the connecting rod and
Support frame as described above includes sliding groove structure.
5. airsuspension system functional test rack as described in claim 1, which is characterized in that described in support frame as described above is corresponding
Suspension arrangement corresponding position is provided with transverse connecting rod or longitudinally connected bar.
6. airsuspension system functional test rack as described in claim 1, the U-shaped portal frame, the connecting rod and institute
Stating support frame includes adjustably adjusting structure.
7. airsuspension system functional test rack as described in claim 1, which is characterized in that support frame as described above is for carrying
Counterweight.
8. a kind of Air Suspension for Commercial Vehicles System Functional Test system, which is characterized in that the test macro includes at least one sky
Air compressor, storage cylinder, solenoid valve block, detection unit, ECU control unit and the sky as described in claim 1-7 any one
Gas suspension system functional test rack；The air compressor passes sequentially through the storage cylinder, the solenoid valve block is hanged with described
The air spring assembly of hang device and/or the rear air spring for promoting axle assembly are connected with cylinder；
The air spring assembly, the air spring and the cylinder are correspondingly arranged on the detection unit；Each ECU
Control unit is respectively connected with the corresponding detection unit and the solenoid valve block；
The detection unit is used to detect the elevation information and/or the rear elevation information for promoting axle assembly of the chassis skeleton, and
The elevation information is sent to ECU control unit；And for detecting the air spring assembly, the air spring and institute
The pressure information of cylinder is stated, and the pressure information is sent to ECU control unit；
The ECU control unit, the elevation information and/or pressure information sent for receiving the detection unit, by the height
Degree information and/or pressure information are compared with corresponding threshold value, send control letter to the solenoid valve block according to comparison result
Number；
The solenoid valve block controls the air spring assembly of the suspension arrangement for being operated according to the control signal
And/or it is described after promoted axle assembly air spring and cylinder stroke or stretching speed, thus control chassis skeleton or
The adjustable height or lifting speed of lift bridge afterwards.
9. airsuspension system function test system as claimed in claim 8, which is characterized in that the test macro further includes
Wireless communication module and remote controler, the remote controler carry out data communication by the wireless communication module and the ECU；
The wireless communication module, the control signal sent for receiving the remote controler, and the control signal is sent to
The ECU.
10. airsuspension system function test system as claimed in claim 8, which is characterized in that the test macro is also wrapped
Display screen is included, the display screen is connect with the ECU, for showing the shape of each device in airsuspension system function test system
State and operating parameter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910006495.1A CN109540554B (en) | 2019-01-04 | 2019-01-04 | Commercial car air suspension system function test rack and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910006495.1A CN109540554B (en) | 2019-01-04 | 2019-01-04 | Commercial car air suspension system function test rack and system |
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| CN109540554A true CN109540554A (en) | 2019-03-29 |
| CN109540554B CN109540554B (en) | 2024-06-07 |
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| CN201910006495.1A Active CN109540554B (en) | 2019-01-04 | 2019-01-04 | Commercial car air suspension system function test rack and system |
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|---|---|---|---|---|
| CN110887678A (en) * | 2019-11-06 | 2020-03-17 | 江苏科技大学 | Hardware-in-loop experimental platform and adjusting method of electric control air suspension vehicle height adjusting system |
| CN111735617A (en) * | 2020-06-03 | 2020-10-02 | 拾音汽车科技（上海）有限公司 | Chassis attachment point force test bench |
| CN113295438A (en) * | 2021-05-07 | 2021-08-24 | 中国第一汽车股份有限公司 | Testing system and testing method for air suspension air bag endurance test |
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| CN109540554B (en) | 2024-06-07 |
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