CN109297731A - A kind of control method and device of tire traveling test - Google Patents
A kind of control method and device of tire traveling test Download PDFInfo
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- CN109297731A CN109297731A CN201811447476.4A CN201811447476A CN109297731A CN 109297731 A CN109297731 A CN 109297731A CN 201811447476 A CN201811447476 A CN 201811447476A CN 109297731 A CN109297731 A CN 109297731A
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- tire
- carcass
- vibration
- relational graph
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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
- G01M17/02—Tyres
Abstract
The present invention provides a kind of control method and device of tire traveling test, by obtaining analog signal obtained in tire traveling test process, convert analog signals into the vibration parameters relational graph for characterizing the carcass internal vibration situation of tire in tire traveling test, if determining that carcass internal vibration situation is abnormal based on vibration parameters relational graph, then stop tire traveling test, it is achieved in the control tested based on carcass internal vibration situation tire traveling, and carcass internal vibration situation will have exception when matter damage occurring inside carcass, thus it can stop tire traveling test when matter damage (having first prothyl to damage inside carcass) occurs for carcass inner rigid, the expansion of inside tires matter damage can be reduced for compared with the existing technology, inside tires matter damage can such as be reduced, face is expanded to by point, so as in the matter of point damage It determines just prothyl damage position, improves the accuracy of determining first prothyl damage position.
Description
Technical field
The invention belongs to tire checking fields, more specifically, more particularly to a kind of tire traveling test control method
And device.
Background technique
With science and technology and expanding economy, automotive safety problem obtains increasing attention, and the quality of tire is vapour
Mostly important a part in vehicle safety problem needs to carry out tire thus the various quality tested to guarantee tire,
Middle tire traveling test is one kind of the various tests of tire, and matter damage occurs in the lower carcass that runs at high speed for detecting tire
Position.
Nowadays, the process of tire traveling test method are as follows: tire is mounted on base, one is applied to tire by base
Constant load provides power by base for the wheel hub of tire, so that tire high speed rotation under the drive of wheel hub；When the carcass of tire
Interior generation matter has a flat tire when damaging, and air pressure monitoring device monitors to have a flat tire at this time, will call the police to notify to stop tire traveling
Test.But just prothyl damage can occur in the carcass of tire and can just stop tire up to having a flat tire for a period of time for such mode
Traveling test causes the first prothyl thereby determined that damage position wrong.
Summary of the invention
In view of this, the purpose of the present invention is to provide the control methods and device of a kind of tire traveling test, for real
The control that now tire traveling is tested based on carcass internal vibration situation, it is initial so as to be determined in the matter of point damage
Matter damages position.
The present invention provides a kind of control method of tire traveling test, comprising:
Obtain analog signal obtained in tire traveling test process；
The analog signal is converted into vibration parameters relational graph, the vibration parameters relational graph is for characterizing the tire
The carcass internal vibration situation of tire in traveling test；
If determining that the carcass internal vibration situation is abnormal based on the vibration parameters relational graph, stops the tire and walk
Row test.
Preferably, if described determine that the carcass internal vibration situation is abnormal based on the vibration parameters relational graph, stop
Only the tire traveling, which is tested, includes:
If the value of the first parameter is abnormal in the vibration parameters relational graph, it is determined that the carcass internal vibration situation is different
Often, the value of first parameter is for characterizing the carcass internal vibration amplitude；
In the case where the carcass internal vibration situation exception, stop the tire traveling test.
Preferably, if the value of the first parameter is abnormal in the vibration parameters relational graph, it is determined that in the carcass
Portion's Vibration Condition includes: extremely
If the value of the first parameter described in the vibration parameters relational graph is more than preset threshold, it is determined that in the carcass
Portion's Vibration Condition is abnormal.
Preferably, described the analog signal is converted into vibration parameters relational graph to include:
The analog signal is converted into digital signal；
Extract multiple values of the first parameter and multiple values of the second parameter from the digital signal, described second
Any value in multiple values of parameter is corresponding with a value in multiple values of first parameter, and described first
The value of parameter is for characterizing the carcass internal vibration amplitude；
Using first parameter as ordinate, using second parameter as abscissa, based on the multiple of first parameter
Multiple values of value and second parameter obtain the vibration parameters relational graph.
The present invention also provides a kind of control systems of tire traveling test, comprising: obtains module, conversion module and control mould
Block；
The acquisition module, for obtaining analog signal obtained in tire traveling test process；
The conversion module, for the analog signal to be converted into vibration parameters relational graph, the vibration parameters relationship
Figure is for characterizing the carcass internal vibration situation of tire in the tire traveling test；
The control module, if for determining that the carcass internal vibration situation is different based on the vibration parameters relational graph
Often, then stop the tire traveling test.
Preferably, the control module comprises determining that abnormal tyre unit and unit out of service；
Abnormal tyre determination unit, if the value for the first parameter in the vibration parameters relational graph is abnormal, it is determined that
The carcass internal vibration situation is abnormal, and the value of first parameter is for characterizing the carcass internal vibration amplitude；
Unit out of service, for stopping the tire traveling in the case where carcass internal vibration situation exception
Test.
Preferably, the abnormal tyre determination unit, if for the first parameter described in the vibration parameters relational graph
Value is more than preset threshold, it is determined that the carcass internal vibration situation is abnormal.
Preferably, the conversion module includes: converting unit, extraction unit and image-drawing unit；
The converting unit, for the analog signal to be converted into digital signal；
The extraction unit, for extracting from the digital signal the multiple values and the second parameter of the first parameter
Multiple values, any value in multiple values of second parameter take with one in multiple values of first parameter
Value corresponds to, and the value of first parameter is for characterizing the carcass internal vibration amplitude；
The image-drawing unit, for using second parameter as abscissa, being based on institute using first parameter as ordinate
Multiple values of the first parameter and multiple values of second parameter are stated, the vibration parameters relational graph is obtained.
The present invention provides a kind of control equipment of tire traveling test again, comprising: fixator, rotator, signal acquisition device
And controller；
The fixator applies load for fixing tire, and to tire；
The rotator, for rotating tire；
The signal acquisition device, for obtaining analog signal obtained in tire traveling test process, and by the simulation
Signal gives the controller；
The controller, for the analog signal to be converted into vibration parameters relational graph, if being based on the vibration parameters
Relational graph determines that the carcass internal vibration situation is abnormal, then stops the tire traveling test, the vibration parameters relational graph
For characterizing the carcass internal vibration situation of tire in the tire traveling test.
Preferably, the connection relationship of the fixator, rotator, signal acquisition device and controller is as follows:
It is not in close contact between the rotator and the fixator, the distance between the rotator and the fixator
Less than the radius of tire；
The fixator is connected with the signal acquisition device, and the signal acquisition device is connect with the controller.
From above-mentioned technical proposal it is found that by obtaining analog signal obtained in tire traveling test process, simulation is believed
It number is converted into the vibration parameters relational graph for characterizing the carcass internal vibration situation of tire in tire traveling test, if based on vibration
Dynamic parameter-relation chart determines that carcass internal vibration situation is abnormal, then stops tire traveling test, be achieved in based on inside carcass
The control that Vibration Condition tests tire traveling, and when matter damage occurring inside the carcass carcass internal vibration situation will exist it is different
Often, thus it can stop tire traveling test, phase when matter damage (having first prothyl to damage inside carcass) occurs for carcass inner rigid
The expansion that inside tires matter damage can conventionally be reduced can such as reduce inside tires matter damage and is expanded to by point
The accuracy of determining first prothyl damage position is improved so as to determine just prothyl damage position in the matter of point damage in face.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of flow chart of the control method of tire traveling test provided in an embodiment of the present invention；
Fig. 2 is a kind of vibration parameters relational graph provided in an embodiment of the present invention；
Fig. 3 is the abnormal relational graph with preset threshold of carcass internal vibration situation provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of the control system of tire traveling test provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of conversion module provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of control module provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of the control equipment of tire traveling test provided in an embodiment of the present invention.
Specific embodiment
Existing tire traveling test is stopped after having a flat tire, and it is existing that matter damage occurs inside the carcass apart from tire at this time
For a period of time, this means that the damage of the matter inside the carcass of tire from a matter damage to a face, then stopping taking turns
The position of the central point in face is determined as just prothyl damage position where tire traveling can damage matter when testing, but due to stopping tire
For matter damage from matter damage to face, whether the position of the central point in the face is that just prothyl damage position can not determine when traveling is tested,
So that existing tire traveling test can not accurately determine just prothyl damage position.
And in carcass inner rigid matter damage can occur for the control method and device of tire traveling test provided by the invention
Stop tire traveling test when (thering is first prothyl to damage inside carcass), reduces a possibility that inside tires matter damage expands, it is such as opposite
Stop tire traveling test in the case that matter damage is not expanded to face from point inside the carcass of tire for the prior art, this
Sample can determine just prothyl damage position in the matter damage of a point, improve the accuracy of determining first prothyl damage position.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to Fig. 1, it illustrates a kind of processes of the control method of traveling tire test provided in an embodiment of the present invention
Figure, for controlling tire traveling test, wherein the control method of traveling tire test shown in Fig. 1 may include following step
It is rapid:
S101 obtains analog signal obtained in tire traveling test process, and wherein tire traveling test refers to that tire exists
High-speed rotating test under certain load.Corresponding one kind for obtaining analog signal obtained in tire traveling test process can
Line mode is: applying certain load (load applied according to the actual situation depending on) to tire, and tire is made to carry one
High speed rotation in the case where constant load, the signal generated when being rotated by sensor to tire is acquired, to pass through sensing
Device obtains the analog signal of tire traveling test.
Such as on the holder by tire installation, fixator pastes tire closely with rotator to tire application load
It closes, drives tire rotation to run at high speed by rotator, and acquire the analog signal in tire traveling test by sensor,
Middle fixator can be but not limited to base, and rotator can be but be not limited to wheel hub.
Specific implementation can be but not limited in tire traveling test: tire be mounted on base, base is to wheel
Tire increases load and tire is fitted closely with wheel hub, drives tire high speed rotation by wheel hub, and pass through acceleration transducer
The analog signal in tire traveling test is obtained, which can be but not limited to acceleration signal.Wherein, base is to wheel
Depending on the size of tire application load is according to the specific use occasion of tire, such as tire is used on heavy truck, then is applied
Payload answer larger, tire is used on family car, then the payload applied is answered smaller.
S102 converts analog signals into vibration parameters relational graph, and wherein vibration parameters relational graph is walked for characterizing tire
The carcass internal vibration situation of tire in row test.That is it can be extracted from analog signal and show carcass internal vibration
The parameter of situation, and then vibration parameters relational graph is obtained based on the parameter extracted.
In the present embodiment, analog signal, which is converted into a kind of feasible pattern of vibration parameters relational graph, is: analog signal is turned
Change digital signal into；Multiple values of the first parameter and multiple values of the second parameter are extracted, from digital signal with first
Parameter is ordinate, and using the second parameter as abscissa, multiple values of multiple values and the second parameter based on the first parameter are obtained
To vibration parameters relational graph, wherein any value in multiple values of the second parameter and one in multiple values of the first parameter
A value is corresponding, and the value of the first parameter is used to characterize carcass internal vibration amplitude, i.e., in multiple values of the second parameter
Any value for, the value is corresponding with a value of the first parameter so that multiple values of the second parameter and first ginseng
Several multiple values have one-to-one relationship.
The achievable mode for wherein converting analog signals into digital signal is: using analog signal as with analog-to-digital conversion
The input of the equipment of function obtains the digital signal of the equipment output with analog-digital conversion function, such as with analog-to-digital conversion
The equipment of function can be but be not limited to analog-digital converter, convert analog signals into digital letter by the analog-digital converter
Number, it is no longer illustrated herein for how to convert.
And one kind that multiple values of the first parameter and multiple values of the second parameter are extracted from digital signal is feasible
Mode is: converting to digital signal, such as can be but be not limited to carry out Fourier transformation to digital signal, to obtain
Multiple values of first parameter and multiple values of the second parameter, for example, carrying out the formula of Fourier transformation such as to digital signal
Under:
Wherein, N is the quantity of the discrete data in digital signal, after carrying out Fourier transformation to digital signal,
One time-domain signal is converted into a frequency-region signal, and the frequency-region signalIt is considered as the first parameter, frequency-region signal
Frequency is considered as the second parameter, has by the frequency-region signal that Fourier transformation obtains multipleAnd it is eachIt is one corresponding
Thus frequency obtains multiple values of the first parameter and multiple values of the second parameter, and multiple frequencies in the frequency-region signal
Rate can be considered as the vibration frequency inside carcass, then corresponding is eachIt then can be used for characterizing vibration inside carcass
Dynamic amplitude.
Further using the first parameter as ordinate, using the second parameter as abscissa, that is to say, that the first parameter is from change
Amount, the second parameter be dependent variable, multiple values of multiple values and the second parameter based on the first parameter, obtain the first parameter and
The variation relation of second parameter, and one kind of vibration parameters relational graph can be then considered as by showing the curve graph of this variation relation
Representation, as shown in Fig. 2, it illustrates a kind of vibration parameters relational graphs provided in this embodiment.
S103 stops tire traveling test if determining that carcass internal vibration situation is abnormal based on vibration parameters relational graph.
If wherein determining that carcass internal vibration situation is abnormal based on vibration parameters relational graph, illustrate to change inside carcass, such as occur
Matter damage can then stop tire traveling test at this time, to determine that the first prothyl of tire damages position.
In the present embodiment, a kind of feasible pattern of carcass internal vibration situation exception is determined based on vibration parameters relational graph
It is: if the value of the first parameter is abnormal in vibration parameters relational graph, it is determined that carcass internal vibration situation is abnormal, wherein the first ginseng
Several values, in the value exception of the first parameter, illustrates that there are carcass Oscillation Amplitudes for characterizing carcass internal vibration amplitude
This excessive abnormal vibrations situation, and matter damage occurs for excessive be particularly likely that inside carcass of carcass internal vibration amplitude, thus refers to
Show and stops tire traveling test.
Judge whether Yi Chang achievable mode is for the value of the first parameter in vibration parameters relational graph: if vibration parameters close
The value for being the first parameter in figure is more than preset threshold, it is determined that carcass internal vibration situation is abnormal.It is to be understood that default threshold
The amplitude peak that value is vibrated when being normal vibration (i.e. there is no matter damages) inside carcass, if showing carcass internal vibration amplitude
The value of first parameter is more than preset threshold, then can determine that carcass internal vibration situation is abnormal, wherein preset threshold can basis
It is without restriction to this present embodiment depending on actual tire situation.
It may be because of experimental enviroment and equipment in test that in actual tests, the value of the first parameter, which is more than preset threshold,
The many factors such as unstability cause, therefore in order to improve experimental accuracy, determine in carcass in the value based on the first parameter
, can be based on multiple values of the first parameter when whether portion's Vibration Condition is abnormal, such as multiple values of the first parameter are more than default
Threshold value, it is determined that carcass internal vibration situation is abnormal, and multiple continuous values of further first parameter are more than preset threshold, then
Determine that carcass internal vibration situation is abnormal, so-called multiple continuous values are multiple values adjacent to each other of the first parameter, such as Fig. 3
Shown, the continuous value of 6 of the first parameter is more than preset threshold in Fig. 3, and visual carcass internal vibration situation is abnormal at this time.?
The dotted line parallel with abscissa indicates preset threshold in Fig. 2 and Fig. 3, and determines tire in multiple continuous values based on the first parameter
When internal portion's Vibration Condition exception, quantity the present embodiment of multiple continuous values without limiting, can according to actual needs and
It is fixed.
From above-mentioned technical proposal it is found that by obtaining analog signal obtained in tire traveling test process, simulation is believed
It number is converted into the vibration parameters relational graph for characterizing the carcass internal vibration situation of tire in tire traveling test, if based on vibration
Dynamic parameter-relation chart determines that carcass internal vibration situation is abnormal, then stops tire traveling test, be achieved in based on inside carcass
The control that Vibration Condition tests tire traveling, and when matter damage occurring inside the carcass carcass internal vibration situation will exist it is different
Often, thus it can stop tire traveling test, phase when matter damage (having first prothyl to damage inside carcass) occurs for carcass inner rigid
The expansion that inside tires matter damage can conventionally be reduced can such as reduce inside tires matter damage and is expanded to by point
The accuracy of determining first prothyl damage position is improved so as to determine just prothyl damage position in the matter of point damage in face.
For the various method embodiments described above, for simple description, therefore, it is stated as a series of action combinations, but
Be those skilled in the art should understand that, the present invention is not limited by the sequence of acts described because according to the present invention, certain
A little steps can be performed in other orders or simultaneously.Secondly, those skilled in the art should also know that, it is retouched in specification
The embodiment stated belongs to preferred embodiment, and related actions and modules are not necessarily necessary for the present invention.
Corresponding with above method embodiment, the embodiment of the present invention also provides a kind of tire traveling experiment control system,
Structural schematic diagram is as shown in figure 4, may include: to obtain module 11, conversion module 12, control module 13.
Module 11 is obtained, for obtaining analog signal obtained in tire traveling test process.Wherein tire traveling is tested
Refer to tire high-speed rotating test under certain load.Corresponding acquisition module 11 obtains during obtaining tire traveling test
To a kind of feasible pattern of analog signal be: to tire apply certain load (load applied according to the actual situation and
It is fixed), and make tire high speed rotation in the case where carrying certain load, the signal generated when being rotated by sensor to tire
It is acquired, to obtain the analog signal of tire traveling test by sensor.
Such as on the holder by tire installation, fixator pastes tire closely with rotator to tire application load
It closes, drives tire rotation to run at high speed by rotator, and acquire the analog signal in tire traveling test by sensor,
Middle fixator can be but not limited to base, and rotator can be but be not limited to wheel hub.
Obtaining the specific implementation in tire traveling test of module 11 can be but not limited to: tire is mounted on base
On, base increases load to tire and tire is fitted closely with wheel hub, drives tire high speed rotation by wheel hub, and by adding
Velocity sensor obtains the analog signal in tire traveling test, which can be but not limited to acceleration signal.Its
In, depending on base applies the size of load according to the specific use occasion of tire to tire, such as tire is used in heavy card
Che Shang, the then payload applied are answered larger, and tire is used on family car, then the payload Ying little Yi applied
A bit.
Conversion module 12, for converting analog signals into vibration parameters relational graph, vibration parameters relational graph is for characterizing
The carcass internal vibration situation of tire in tire traveling test；That is show in carcass from can be extracted in analog signal
The parameter of portion's Vibration Condition, and then vibration parameters relational graph is obtained based on the parameter extracted, wherein the structure of conversion module 12
As shown in Figure 5, comprising: converting unit 121, extraction unit 122 and image-drawing unit 123；
Converting unit 121 converts analog signals into digital signal；Extraction unit 122 extracts first from digital signal
Multiple values of parameter and multiple values of the second parameter, any value and the first parameter in multiple values of the second parameter
A value in multiple values is corresponding, and the value of the first parameter is for characterizing carcass internal vibration amplitude；Image-drawing unit 123
Using the first parameter as ordinate, using the second parameter as abscissa, multiple values and the second parameter based on the first parameter it is multiple
Value obtains vibration parameters relational graph, wherein any value in multiple values of the second parameter takes with the multiple of the first parameter
A value in value is corresponding, and the value of the first parameter is used to characterize carcass internal vibration amplitude, i.e., to the more of the second parameter
For any value in a value, the value is corresponding with a value of the first parameter, so that multiple values of the second parameter
There is one-to-one relationship with multiple values of the first parameter.
Wherein converting unit 121, which converts analog signals into the achievable mode of digital signal, is: using analog signal as
The input of equipment with analog-digital conversion function obtains the digital signal of the equipment output with analog-digital conversion function, such as
Equipment with analog-digital conversion function can be but be not limited to analog-digital converter, be turned analog signal by the analog-digital converter
It changes digital signal into, is no longer illustrated herein for how to convert.
Extraction unit 122 extracts multiple values of the first parameter and multiple values of the second parameter from digital signal
A kind of feasible pattern is: digital signal converted, such as can be but be not limited to carry out Fourier transformation to digital signal,
To obtain multiple values of the first parameter and multiple values of the second parameter, first is extracted from digital signal for above-mentioned
Multiple values of parameter and multiple value modes of the second parameter please refer to the related description in embodiment of the method, to this this implementation
Example is not illustrating.
Image-drawing unit 123 is using the first parameter as ordinate, using the second parameter as abscissa, that is to say, that the first parameter is
Independent variable, the second parameter are dependent variable, and multiple values of multiple values and the second parameter based on the first parameter obtain the first ginseng
Several and the second parameter variation relation, and vibration parameters relational graph can be then considered as by showing the curve graph of this variation relation
A kind of representation.
Control module 13, if stopping taking turns for determining that carcass internal vibration situation is abnormal based on vibration parameters relational graph
Tire traveling test.If wherein determining that carcass internal vibration situation is abnormal based on vibration parameters relational graph, illustrate to occur inside carcass
Matter damage such as occurs for variation, can then stop tire traveling test at this time, to determine that the first prothyl of tire damages position.Above-mentioned control
Module 13 is as shown in Figure 6, comprising: abnormal tyre determination unit 131 and unit out of service 132；
If value of the abnormal tyre determination unit 131 for the first parameter in vibration parameters relational graph is abnormal, it is determined that tire
Internal portion Vibration Condition is abnormal, wherein the value of the first parameter is for characterizing carcass internal vibration amplitude；Unit 132 out of service
In the value exception of the first parameter, illustrate there are this excessive abnormal vibrations situation of carcass Oscillation Amplitude, and vibration inside carcass
Matter damage occurs for excessive be particularly likely that inside carcass of dynamic amplitude, thereby indicates that and stops tire traveling test.
Abnormal tyre determination unit 131, which judges whether the value of the first parameter in vibration parameters relational graph is abnormal, can be achieved
Mode is: if the value of the first parameter is more than preset threshold in vibration parameters relational graph, it is determined that carcass internal vibration situation is different
Often.It can be understood that the amplitude peak that preset threshold is vibrated when being normal vibration (i.e. there is no matter damages) inside carcass, if
The value for showing the first parameter of carcass internal vibration amplitude is more than preset threshold, then can determine that carcass internal vibration situation is different
Often, wherein preset threshold can be without restriction to this present embodiment depending on actual tire situation.
It may be because of experimental enviroment and equipment in test that in actual tests, the value of the first parameter, which is more than preset threshold,
The many factors such as unstability cause, therefore in order to improve experimental accuracy, determine in carcass in the value based on the first parameter
, can be based on multiple values of the first parameter when whether portion's Vibration Condition is abnormal, such as multiple values of the first parameter are more than default
Threshold value, it is determined that carcass internal vibration situation is abnormal, and multiple continuous values of further first parameter are more than preset threshold, then
Determine that carcass internal vibration situation is abnormal, so-called multiple continuous values are multiple values adjacent to each other of the first parameter, such as Fig. 3
Shown, the continuous value of 6 of the first parameter is more than preset threshold in Fig. 3, and visual carcass internal vibration situation is abnormal at this time.?
The dotted line parallel with abscissa indicates preset threshold in Fig. 2 and Fig. 3, and determines tire in multiple continuous values based on the first parameter
When internal portion's Vibration Condition exception, quantity the present embodiment of multiple continuous values without limiting, can according to actual needs and
It is fixed.
From above-mentioned technical proposal it is found that by obtaining analog signal obtained in tire traveling test process, simulation is believed
It number is converted into the vibration parameters relational graph for characterizing the carcass internal vibration situation of tire in tire traveling test, if based on vibration
Dynamic parameter-relation chart determines that carcass internal vibration situation is abnormal, then stops tire traveling test, be achieved in based on inside carcass
The control that Vibration Condition tests tire traveling, and when matter damage occurring inside the carcass carcass internal vibration situation will exist it is different
Often, thus it can stop tire traveling test, phase when matter damage (having first prothyl to damage inside carcass) occurs for carcass inner rigid
The expansion that inside tires matter damage can conventionally be reduced can such as reduce inside tires matter damage and is expanded to by point
The accuracy of determining first prothyl damage position is improved so as to determine just prothyl damage position in the matter of point damage in face.
Corresponding with above method embodiment, the embodiment of the present invention also provides a kind of tire traveling controlling test equipment, can
To include: fixator, rotator, signal acquisition device and controller.
Fixator applies load for fixing tire, and to tire；
Rotator, for rotating tire, so that tire is applied with certain load, (load applied is according to the actual situation
Depending on) in the case where high speed rotation.
Signal acquisition device for obtaining analog signal obtained in tire traveling test process, and gives the signal to control
Device processed.
Controller is taken turns for converting analog signals into vibration parameters relational graph if being determined based on vibration parameters relational graph
Tire internal vibration situation is abnormal, then stops tire traveling test, and vibration parameters relational graph is taken turns for characterizing in tire traveling test
The carcass internal vibration situation of tire is right for the related description seen in above method embodiment that illustrates of controller
This present embodiment no longer illustrates.
In the present embodiment, the connection relationship of each device is as follows:
It is not in close contact between rotator and fixator, the distance between rotator and the fixator are less than the half of tire
The distance of diameter, so that tire and rotator are in close contact, such tire can rotate under the drive of rotator；Fixator and letter
Number acquisition device connection, so that signal acquisition device obtains analog signal obtained in tire traveling test process.Signal acquisition device with
Controller connection allows controller to control tire traveling test based on analog signal.
Wherein fixator can be but not limited to base, and rotator can be but not limited to wheel hub, signal acquisition device can be with
Being but not limited to acceleration transducer, controller can be but not limited to be made of computer and signal picker, as shown in fig. 7,
Each device connection relationship is as follows:
Be not in close contact between base and wheel hub, the distance between wheel hub and the base be less than tire radius away from
From so that driving tire rotation when tire interface is to wheel hub；Base applies load to tire, is carrying out tire traveling test:
Tire is mounted on base, base increases load to tire and tire is fitted closely with wheel hub, drives tire by wheel hub
High speed rotation, wherein depending on base applies the size of load according to the specific use occasion of tire to tire, such as tire will make
Answered with the payload on heavy trucks the driver, then applied larger, tire is used on family car, then the load applied is big
It is small answer it is smaller.
Acceleration transducer is fixed on base, during allowing acceleration transducer to obtain tire traveling test
Analog signal is converted digital signal by analog signal, signal picker, and the first parameter and second are extracted from digital signal
Parameter is sent to computer, is based on the first parameter by computer and the second parameter obtains vibration parameters relational graph, is based on vibration parameters relationship
Scheme to determine that inside tires Vibration Condition controls tire traveling test, control process is seen in above method embodiment
Related description is not illustrating this present embodiment.
From above-mentioned technical proposal it is found that by obtaining analog signal obtained in tire traveling test process, simulation is believed
It number is converted into the vibration parameters relational graph for characterizing the carcass internal vibration situation of tire in tire traveling test, if based on vibration
Dynamic parameter-relation chart determines that carcass internal vibration situation is abnormal, then stops tire traveling test, be achieved in based on inside carcass
The control that Vibration Condition tests tire traveling, and when matter damage occurring inside the carcass carcass internal vibration situation will exist it is different
Often, thus it can stop tire traveling test, phase when matter damage (having first prothyl to damage inside carcass) occurs for carcass inner rigid
The expansion that inside tires matter damage can conventionally be reduced can such as reduce inside tires matter damage and is expanded to by point
The accuracy of determining first prothyl damage position is improved so as to determine just prothyl damage position in the matter of point damage in face.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For device class embodiment, since it is basically similar to the method embodiment, so being described relatively simple, related place ginseng
See the part explanation of embodiment of the method.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments can be realized those skilled in the art or using the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and the general principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with the principles and novel features disclosed in this article widest
Range.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of control method of tire traveling test, which is characterized in that the described method includes:
Obtain analog signal obtained in tire traveling test process；
The analog signal is converted into vibration parameters relational graph, the vibration parameters relational graph is for characterizing the tire traveling
The carcass internal vibration situation of tire in test；
If determining that the carcass internal vibration situation is abnormal based on the vibration parameters relational graph, stop the tire traveling examination
It tests.
2. if the method according to claim 1, wherein described based on described in vibration parameters relational graph determination
Carcass internal vibration situation is abnormal, then stops the tire traveling test and include:
If the value of the first parameter is abnormal in the vibration parameters relational graph, it is determined that the carcass internal vibration situation is abnormal,
The value of first parameter is for characterizing the carcass internal vibration amplitude；
In the case where the carcass internal vibration situation exception, stop the tire traveling test.
3. if according to the method described in claim 2, it is characterized in that, the first parameter in the vibration parameters relational graph
Value is abnormal, it is determined that the carcass internal vibration situation includes: extremely
If the value of the first parameter described in the vibration parameters relational graph is more than preset threshold, it is determined that vibration inside the carcass
Emotionally condition is abnormal.
4. the method according to claim 1, wherein described be converted into vibration parameters relationship for the analog signal
Figure includes:
The analog signal is converted into digital signal；
Multiple values of the first parameter and multiple values of the second parameter, second parameter are extracted from the digital signal
Multiple values in any value it is corresponding with a value in multiple values of first parameter, and first parameter
Value for characterizing the carcass internal vibration amplitude；
Using first parameter as ordinate, using second parameter as abscissa, multiple values based on first parameter
With multiple values of second parameter, the vibration parameters relational graph is obtained.
5. a kind of control system of tire traveling test, which is characterized in that the system comprises: obtain module, conversion module and
Control module；
The acquisition module, for obtaining analog signal obtained in tire traveling test process；
The conversion module, for the analog signal to be converted into vibration parameters relational graph, the vibration parameters relational graph is used
In the carcass internal vibration situation for characterizing tire in the tire traveling test；
The control module, if for determining that the carcass internal vibration situation is abnormal based on the vibration parameters relational graph,
Stop the tire traveling test.
6. system according to claim 5, which is characterized in that the control module comprise determining that abnormal tyre unit and
Unit out of service；
Abnormal tyre determination unit, if the value for the first parameter in the vibration parameters relational graph is abnormal, it is determined that described
Carcass internal vibration situation is abnormal, and the value of first parameter is for characterizing the carcass internal vibration amplitude；
Unit out of service, in the case where the carcass internal vibration situation exception, stopping the tire traveling test.
7. system according to claim 6, which is characterized in that the abnormal tyre determination unit, if being used for the vibration
The value of first parameter described in parameter-relation chart is more than preset threshold, it is determined that the carcass internal vibration situation is abnormal.
8. system according to claim 5, which is characterized in that the conversion module include: converting unit, extraction unit and
Image-drawing unit；
The converting unit, for the analog signal to be converted into digital signal；
The extraction unit, for extracted from the digital signal the first parameter multiple values and the second parameter it is multiple
Value, any value in multiple values of second parameter and a value pair in multiple values of first parameter
It answers, and the value of first parameter is for characterizing the carcass internal vibration amplitude；
The image-drawing unit, for using first parameter as ordinate, using second parameter as abscissa, based on described the
Multiple values of multiple values of one parameter and second parameter obtain the vibration parameters relational graph.
9. a kind of control equipment of tire traveling test, the equipment includes: fixator, rotator, signal acquisition device and control
Device；
The fixator applies load for fixing tire, and to tire；
The rotator, for rotating tire；
The signal acquisition device, for obtaining analog signal obtained in tire traveling test process, and by the analog signal
Give the controller；
The controller, for the analog signal to be converted into vibration parameters relational graph, if being based on the vibration parameters relationship
Figure determines that the carcass internal vibration situation is abnormal, then stops the tire traveling test, and the vibration parameters relational graph is used for
Characterize the carcass internal vibration situation of tire in the tire traveling test.
10. device according to claim 9, which is characterized in that the fixator, rotator, signal acquisition device and controller
Connection relationship it is as follows:
It is not in close contact between the rotator and the fixator, the distance between the rotator and the fixator are less than
The radius of tire；
The fixator is connected with the signal acquisition device, and the signal acquisition device is connect with the controller.
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| CN201811447476.4A CN109297731B (en) | 2018-11-29 | 2018-11-29 | Control method and device for tire running test |
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| CN201811447476.4A CN109297731B (en) | 2018-11-29 | 2018-11-29 | Control method and device for tire running test |
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| CN109297731B CN109297731B (en) | 2021-06-01 |
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| CN109297731B (en) | 2021-06-01 |
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