CN108844743A - A kind of intact stability experimental provision - Google Patents
A kind of intact stability experimental provision Download PDFInfo
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- CN108844743A CN108844743A CN201810622446.6A CN201810622446A CN108844743A CN 108844743 A CN108844743 A CN 108844743A CN 201810622446 A CN201810622446 A CN 201810622446A CN 108844743 A CN108844743 A CN 108844743A
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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
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Abstract
The invention discloses a kind of intact stability experimental provisions, including：Road simulation system, road simulation system are mainly made of components such as belt, roller and direct current generators；The experimental provision further includes：Auto model, auto model are scale model similar with actual vehicle structure, and specific type includes：Car model, train model, Autobike Mode and dummy vehicle etc.；The experimental provision further includes：Data collection system is disposed with tension sensor and signal amplifier in experiment porch tail end, and tension sensor is connected by thin traction rope with auto model, and the host computer of external connection collects the pulling force data of auto model by data collecting card；It is fixed on the real-time lateral displacement and posture of the grid laser measurement auto model on bracket.The present invention can carry out stability experiment to various auto models, provide basic condition for the research of vehicle unstable phenomenon and instability Mechanism, widely applicable, have feasibility.
Description
Technical field
The present invention relates to means of transport Surface power drive experimental field more particularly to a kind of intact stability experimental provisions.
Background technique
With the raising of running velocity, seem particularly important to the research of dynamics of vehicle.Vehicle unstability not only can
Influence the comfort level taken, it is also possible to lead to the serious consequence of car crash.Therefore, intact stability is as vehicles dynamic performance
One of most basic index, the problem of being dynamics of vehicle research overriding concern.Vehicle unstability critical speed and unstability machine
Reason, is the main contents of vehicle stabilization Journal of Sex Research, the former determines the highest allowable speed of vehicle, and the latter is then to control instability and pre-
It is anti-to have important directive function.
Since the unstability critical speed of actual vehicle is often very big, to obtained by train experiment it is required as a result,
Irreparable damage may be brought to experimental provision and experimental facilities, and be likely to cause consequence very serious.Therefore,
The experiment of real vehicle unstability is also extremely rare.However, to understand fully its instability Mechanism, it is necessary to obtain unstability rear vehicle behavioral data and go forward side by side
Row analysis.Therefore, there is an urgent need to be used to study the experimental provision of behavior after vehicle unstability and unstability, for control and pre- anti-vehicle
Unstability improves the unstability critical speed of vehicle, provides theory support and technological guidance.
To reduce the experiment harm of vehicle unstability, experimental study cost is controlled, vehicle of the exploitation based on vehicle scale model is steady
Qualitative experiment device is a kind of possible technique scheme.The foundation of this experimental provision can not only be vehicle unstable phenomenon and unstability
The research of mechanism provides basic condition, can also accumulate preciousness for the exploitation of subsequent real vehicle unstability experimental provision and the formulation of experimental program
Experience.
Summary of the invention
The present invention provides a kind of intact stability experimental provisions, can be used for unstability critical speed, the unstability type of vehicle
The demonstration of research and vehicle unstable phenomenon facilitates the kinetics mechanism for disclosing vehicle unstability, described below：
A kind of intact stability experimental provision, including：Road simulation system
Road simulation system is mainly made of belt, roller and direct current generator, wherein roller of the belt sleeve in rear and front end
On, front end roller is connected by conveyer belt with direct current generator, and the direct current generator is connected by conducting wire with electric machine controller；
The electric machine controller is connected by conducting wire with PLC module, and PLC module is connected with speed display module again,
Speed display module shows current belt speed；
Further, the PLC module is Mitsubishi PLC module.
The experimental provision further includes：Auto model；
Auto model is scale model similar with actual vehicle structure, and specific type includes：Car model, train mould
Type, Autobike Mode and dummy vehicle etc..
The experimental provision further includes：Data collection system；
It is disposed with tension sensor and signal amplifier in experiment porch tail end, tension sensor passes through thin traction rope and vehicle
Model is connected to acquire pulling force signal in real time, and the host computer of signal amplifier amplified signal, external connection passes through data acquisition
Card collects the pulling force data of auto model；Real-time lateral displacement of the laser being fixed on bracket to measure auto model
And posture.
Further, the laser is grid laser；
The beneficial effect of the technical scheme provided by the present invention is that：
1, the electric machine control system that experiment porch is developed using PLC technology can be realized the acceleration of auto model, subtract
Speed drives at a constant speed；
2, the belt energy of different materials is used come the true driving scene of simulating vehicle by the design of road simulation system
It is enough to simulate different road conditions to a certain extent；
3, the behavior of the practical driver of cross recovering forces analog generated by traction rope, to study the critical speed of unstability
Relationship between degree and driving behavior；
4, the grid projected using grid laser, needed for capable of being obtained in vehicle stabilization Journal of Sex Research in conjunction with image processing techniques
The data such as the real-time lateral displacement wanted and posture；
5, tension sensor can effectively collect pulling force data required for intact stability is studied.
Detailed description of the invention
Fig. 1 is the overall construction drawing of intact stability experimental provision；
Fig. 2 is the schematic diagram of car model laser network motion measurement；
Fig. 3 is the schematic diagram of train model laser network motion measurement.
In attached drawing, parts list represented by the reference numerals are as follows：
1：Belt； 2：Direct current generator；
3：PLC module； 4：Speed display module；
5：Electric machine controller； 6：Front end roller；
7：Video camera； 8：Grid laser；
9：Laser stent； 10：Supporting table；
11：Tension sensor and signal amplifier； 12：Rear end roller；
13：Traction rope； 14：Auto model.
Wherein, above-mentioned device 1-13 has collectively constituted this experimental provision.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, embodiment of the present invention is made below further
Ground detailed description.
In order to solve the problems, such as background technique, the function that the experimental provision of design of the embodiment of the present invention needs to realize
It is as follows：
1) speed of belt 1 is adjustable, is able to satisfy the various rate requests of auto model 14；
2) the real-time lateral position of auto model can be effectively obtained using grid laser as the data collection system of core
The data such as shifting, posture and pulling force；
Embodiment 1
Referring to Fig. 1, intact stability experimental provision includes：Belt 1, direct current generator 2, PLC module 3 (such as：Mitsubishi PLC
Module), speed display module 4, electric machine controller 5, front end roller 6, video camera 7, grid laser 8, laser stent 9, branch
Support platform 10, tension sensor and signal amplifier 11, rear end roller 12, traction rope 13 and auto model 14.Wherein, above-mentioned
Device 1-13, which is combined, constitutes experiment porch.
Wherein, direct current generator 2 is fixed in supporting table 10, and a roller is installed (i.e. in the rear and front end of supporting table 10 respectively
Front end roller 6 and rear end roller 12), 1 set of belt on the roller of rear and front end, front end roller 6 pass through conveyer belt and direct current
Machine 2 connects, and direct current generator 2 is connected by conducting wire with electric machine controller 5, PLC module 3 and speed display module 4 and motor control
Device 5 processed is connected by conducting wire.
Wherein, PLC module 4 is the control core of entire experiment porch；Speed display module 4 shows current belt speed
Degree.
Further, tension sensor and signal amplifier 11, for acquiring the pulling force data of single-chip microcontroller auto model, net
Lattice laser 8 is for measuring the data such as real-time lateral displacement, the posture of auto model.
In conclusion the intact stability experimental provision of design of the embodiment of the present invention, for control and pre- anti-vehicle unstability, mentions
The unstability critical speed of high vehicle, provides theory support and technological guidance, reduces and carries out in fact to vehicle unstability critical speed
Test the various aspects cost of research.
Embodiment 2
The scheme in embodiment 1 is further introduced under automobile scene below, it is described below：
Referring to Fig. 1, experiment porch power supply is opened, Mitsubishi PLC module 3 runs PLC program, converts output voltage by A/D
Signal shows on speed display module 4 that the direct current generator 2 of experiment porch is opened at this time to electric machine controller 5, while by velocity amplitude
Dynamic, belt 1 starts running.
In the course of work, grid laser 8 can project the grid of certain area to experiment porch (being made of device 1-13)
Line, as shown in Fig. 2, measure each grid specific size and total projected area, and be marked, take the photograph on auto model
Camera shoots experiment porch, utilizes image processing techniques, so that it may obtain the real-time lateral displacement and appearance of auto model
State.Tension sensor and signal amplifier 11 acquisition pulling force signal and amplify pulling force signal in real time simultaneously, external connection it is upper
Machine collects above-mentioned pulling force data by data collecting card (also external connection).
By changing the traction rope length connecting with car model 14, above procedure is repeated, different rope lengths can be obtained
In the case of pulling force data.
After the acquisition for completing experimental data, subsequent processing is carried out to experimental data, in conjunction with the lateral lateral deviation of car model
Angle and pulling force data can calculate its tractive force and lateral lateral deviation power, the transverse direction of vehicle drawn out according to existing data
It is displaced the curve changed with speed, which can not only determine the unstability critical speed of vehicle, can also determine the vehicle system
The unstability type of system.
Embodiment 3
The scheme in embodiment 1 is further introduced under train scene below, it is described below：
Referring to Fig. 1, experiment porch power supply is opened, Mitsubishi PLC module 3 runs PLC program, converts output voltage by A/D
Signal shows on speed display module 4 that the direct current generator 2 of experiment porch is opened at this time to electric machine controller 5, while by velocity amplitude
Dynamic, belt 1 starts running.
In the course of work, grid laser 8 can project the grid of certain area to experiment porch (being made of device 1-13)
Line, as shown in figure 3, measure each grid specific size and total projected area, and in each section compartment of train model
On be marked, video camera shoots experiment porch, utilizes image processing techniques, so that it may obtain the real-time of train model
Lateral displacement and posture.Tension sensor and signal amplifier 11 acquire pulling force signal in real time and amplify pulling force signal simultaneously, outside
The host computer of portion's connection collects above-mentioned pulling force data by data collecting card (also external connection).
By changing the traction rope length connecting with train model 14, above procedure is repeated, different rope lengths can be obtained
In the case of pulling force data.
After the acquisition for completing experimental data, subsequent processing is carried out to experimental data, is fallen out according to the drafting of existing data
The curve that the lateral displacement of vehicle model changes with speed, the curve can not only determine the unstability critical speed of vehicle, can be with
Determine the unstability type of the train system.
When specific implementation, the embodiment of the present invention to the length of traction rope, duplicate number with no restrictions, according to practical application
In carry out set.
In conclusion the intact stability experimental provision of design of the embodiment of the present invention, for control and pre- anti-vehicle unstability, mentions
The unstability critical speed of high vehicle, provides theory support and technological guidance, reduces and carries out in fact to vehicle unstability critical speed
Test the various aspects cost of research.
Method in above-described embodiment 1 and 2 is applied equally to any type surface car (including in ground taxi shape
The aircraft of state) stability experiment, experimental method and step are similar with the stability experiment under automobile, train scene, therefore not
It repeats again.
The embodiment of the present invention to the model of each device in addition to doing specified otherwise, the model of other devices with no restrictions,
As long as the device of above-mentioned function can be completed.
It will be appreciated by those skilled in the art that attached drawing is the schematic diagram of a preferred embodiment, the embodiments of the present invention
Serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of intact stability experimental provision, including：Road simulation system, which is characterized in that
Road simulation system is mainly made of belt, roller and direct current generator, and wherein belt sleeve is preceding on the roller of rear and front end
End roller is connected by conveyer belt with direct current generator, and the direct current generator is connected by conducting wire with electric machine controller；
The electric machine controller is connected by conducting wire with PLC module, and PLC module is connected with speed display module again, speed
Display module is for showing current belt speed；
The experimental provision further includes：Auto model；
Auto model is scale model similar with actual vehicle structure, and specific type includes：Car model, train model,
Autobike Mode and dummy vehicle；
The experimental provision further includes：Data collection system；
It is disposed with tension sensor and signal amplifier in experiment porch tail end, tension sensor passes through thin traction rope and vehicle mould
Type is connected to acquire pulling force signal in real time, and the host computer of signal amplifier amplified signal, external connection is adopted by data collecting card
Collect the pulling force data of auto model；Real-time lateral displacement and appearance of the laser being fixed on bracket to measure auto model
State.
2. a kind of intact stability experimental provision according to claim 1, which is characterized in that the experimental provision also wraps
It includes：
Laser projects the grid lines of certain area, measure each grid specific size and total projected area, and in vehicle
It is marked on model；
Video camera shoots experiment porch, using image processing techniques, with obtain auto model real-time lateral displacement and
Posture；
Tension sensor acquires pulling force signal in real time, and by signal amplifier amplified signal, the host computer of external connection passes through number
Above-mentioned pulling force data is collected according to capture card；
By changing the traction rope length that connect with auto model, repeatedly above procedure, in the case of can getting different rope lengths
Pulling force data.
3. a kind of intact stability experimental provision according to claim 1 or 2, which is characterized in that
The laser is grid laser；
The PLC module is Mitsubishi PLC module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622446.6A CN108844743B (en) | 2018-06-15 | 2018-06-15 | Vehicle stability experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622446.6A CN108844743B (en) | 2018-06-15 | 2018-06-15 | Vehicle stability experimental device |
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| CN108844743A true CN108844743A (en) | 2018-11-20 |
| CN108844743B CN108844743B (en) | 2020-09-11 |
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| CN201810622446.6A Active CN108844743B (en) | 2018-06-15 | 2018-06-15 | Vehicle stability experimental device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110274773A (en) * | 2019-08-02 | 2019-09-24 | 中国标准化研究院 | Scooter dynamic detection system and method |
| CN110274773B (en) * | 2019-08-02 | 2024-06-07 | 中国标准化研究院 | Dynamic detection system and method for scooter |
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| CN110274773B (en) * | 2019-08-02 | 2024-06-07 | 中国标准化研究院 | Dynamic detection system and method for scooter |
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| CN108844743B (en) | 2020-09-11 |
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