CN207916470U - A kind of tire and vehicle - Google Patents
A kind of tire and vehicle Download PDFInfo
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- CN207916470U CN207916470U CN201721925413.6U CN201721925413U CN207916470U CN 207916470 U CN207916470 U CN 207916470U CN 201721925413 U CN201721925413 U CN 201721925413U CN 207916470 U CN207916470 U CN 207916470U
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- tire
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Abstract
This application discloses a kind of tire, for the inside tires along the multiple piezoelectric film sensors of circumferentially segmented setting of the tire, each piezoelectric film sensor is respectively used to detect the tire pressure on the sectional area of the tire corresponding to it.The application detects the tire pressure of the corresponding tire sectional area in its position by piezoelectric film sensor by the multiple piezoelectric film sensors of circumferentially segmented setting in inside tires along tire.Since piezoelectric film sensor can utilize piezoelectric current caused by the deformation of itself to power, there is no need to the external worlds to be additionally provided power supply.The application also provides a kind of vehicle, which includes above-described tire.
Description
Technical field
This application involves tire pressure monitoring technical fields, more particularly to a kind of tire and vehicle.
Background technology
With the development of society, traffic safety problem has become global big problem, and the safety of automobile is to people
The influence of class lives and properties is self-evident, and in vehicle traveling process, the tire that happens occasionally is blown out suddenly is easy to cause vapour
Vehicle is out of control to cause traffic accident, therefore vehicle security drive is increasingly taken seriously.With the progress of automotive engineering, automobile
Safety be also refined, traditional passive security far can not avoid traffic accident generation, therefore active safety is more next
More paid attention to by everybody.Device for monitoring tyre pressure is as active safety technologies, and external commonly used, domestic main engine plants also exist one after another
Device for monitoring tyre pressure is configured in high-equipped vehicle model.Existing device for monitoring tyre pressure majority needs the power supplies such as lithium battery to work, and
Pressure sensor is mainly placed in a certain position of tire by current tire pressure monitoring system, fails the whole pressure for realizing tire border
Monitoring.
Utility model content
In order to solve the above technical problems, the application provides a kind of tire and the vehicle with this tire, can without
The tire pressure of tire is detected in the case of external world's power supply, and the tire pressure variation of tire can be reacted comprehensively.
In order to solve the above technical problems, the technical solution that the application uses is：A kind of tire is provided, in the tire
Along the multiple piezoelectric film sensors of circumferentially segmented setting of the tire, each piezoelectric film sensor is respectively used to examine in portion
Survey the tire pressure on the sectional area of the tire corresponding to it.
The application also provides a kind of vehicle, which includes above-described tire.
The advantageous effect of the application is：The case where being different from the prior art, the application by inside tires along tire
The circumferentially segmented multiple piezoelectric film sensors of setting detect the corresponding tire in its position by piezoelectric film sensor and are segmented
The tire pressure in region.Since piezoelectric film sensor can utilize piezoelectric current caused by the deformation of itself to power, nothing
The external world is needed to be additionally provided power supply.
Description of the drawings
Fig. 1 is part cross-sectional view in one embodiment of the application tire；
Fig. 2 is part cross-sectional view in another embodiment of the application；
Fig. 3 is the structural schematic diagram that sensor is distributed in the another embodiment of the application；
Fig. 4 is the flow diagram of one embodiment of the application pressure of tire monitoring method；
Fig. 5 is the flow diagram of another embodiment of the application pressure of tire monitoring method；
Fig. 6 is the flow diagram of the another embodiment of the application pressure of tire monitoring method；
Fig. 7 is the flow diagram of the application pressure of tire monitoring method a further embodiment；
Fig. 8 is the structural schematic diagram of one embodiment of the application tyre skidding rate computing device.
Specific implementation mode
Explain the structure and pressure of tire monitoring method of tire in conjunction with the embodiments below by way of attached drawing.
Referring to Fig. 1, tire 100 provided by the present application is applied on vehicle.Week of the inside of the tire 100 along tire 100
To the multiple piezoelectric film sensors of subsection setup 10.Each piezoelectric film sensor 10 is respectively used to detect its position correspondence
Tire 100 sectional area on tire pressure.
Since piezoelectric film sensor 10 can utilize piezoelectric current caused by the deformation of itself to power, there is no need to the external worlds
It is additionally provided power supply.It saves and replaces battery or the operation to inconveniences such as battery chargings, because tire 100 once completes
Be inconvenient to open, tire 100 itself can be damaged if opening.
Specifically, the tire 100 includes crown 20, the outer surface of crown 20 is provided with along 100 circumferentially segmented setting of tire
Multiple tread contours 22.Further, tread contour 22 is divided into the tyre surface that at least two groups are mutually parallel along the axial direction of tire 100
Decorative pattern annulus 222, the laterally disposed of tread contour annulus 222 have smooth annulus 242, i.e. outer surface is smooth part.Tire
100 inside includes primer layer 30, crown protective layer 40 and crown belt 50 positioned at 30 inside of primer layer.
In one embodiment, piezoelectricity is provided at the position that the inside of tire 100 at least corresponds to a tread contour 22
Thin film sensor 10, to generate the tire pressure for detecting the tread contour 22 when deformation in tread contour 22.Such as Fig. 2, as tire
It is preced with a tread contour 22 on 20 surfaces.Further, in order to preferably detect the tire pressure of tire 100 everywhere, another implementation
A piezoelectric film sensor 10 is respectively provided at 22 position of each tread contour in example.It is able to detect that in this way on tire 100
The tire pressure of all tread contours 22 changes, and data are more complete, improves according to detected tire pressure or is believed by tire pressure
Breath calculates the accuracy of the state that the deformation data obtained judges tire, vehicle drive situations and road conditions.Different embodiments
In on each tire not necessarily each 22 position of tread contour be respectively provided with a piezoelectric film sensor 10, can be spaced pre-
If number arranges one, this is not specifically limited.
Specifically, in the present embodiment, piezoelectric film sensor 10 is arranged between tread contour 22 and primer layer 30.In this way
Piezoelectric film sensor 10 is nearest from tread contour 22, and the tire pressure detected is most accurate.In other embodiments can also
Piezoelectric film sensor 10 is set between crown protective layer 40 and primer layer 30.Or it is set to crown protective layer 40 and tire
It is preced between belt 50.
It, can respectively subsection setup has multiple piezoelectric membranes to pass at least two tread contour annulus 222 in one embodiment
Sensor 10.It is passed specifically, each tread contour 22 on each tread contour annulus 222 is correspondingly arranged a piezoelectric membrane
A piezoelectric film sensor 10 is arranged in sensor 10, or the two or more tread contours 22 in interval.Further, another embodiment
In, also subsection setup has multiple piezoelectric film sensors 10 to smooth annulus 242.
In embodiment as shown in Figure 1, smooth annulus 242 is located at the both sides of the edge of crown 20, tread contour annulus 222
Between smooth annulus 242.Other embodiment can also be the both sides of the edge that tread contour annulus 222 is located at crown 20, smoothly
Annulus 242 is between tread contour annulus 222；Or the peaceful 242 interval setting of slip ring band of tread contour annulus 222.
It is piezoelectric membrane distributed architecture schematic diagram with further reference to Fig. 3.Corresponding to embodiment shown in FIG. 1, the embodiment
In, tread contour annulus 222 is equipped with three groups, and the piezoelectric membrane 10 in areas A shown in Fig. 3, the areas B and the areas C is correspondingly arranged in respectively
Three groups of 222 corresponding positions of tread contour annulus.In another embodiment, Fig. 3 may also indicate that another distribution, for example, the areas A and
The piezoelectric membrane 10 in the areas C is correspondingly arranged in 242 corresponding position of smooth annulus respectively；The piezoelectric membrane 10 in the areas B is correspondingly arranged in
222 corresponding position of tread contour annulus.
Further, in the present embodiment, tire 100 further includes that the intelligence sample module 70 being electrically connected with each other and information are sent
Module 80.As shown in figure 3, the piezoelectric film sensor 10 on same annulus is electrically connected by conducting wire 60, and and intelligence sample
Module 70 is electrically connected, and intelligence sample module 70 is for collecting the tire pressure that piezoelectric film sensor 10 is sent out successively.Information is sent out
Send module 80 for outwardly sending tire pressure or calculating the deformation data obtained through tire pressure.Specifically, information is collected
It can be wire transmission between module 70 and information sending module 80, can also be passed by bluetooth or wireless signal
It is defeated.
Can not also include information collection module 70 and information sending module 80 it should be understood that in other embodiment, and
It is to be sent out detected tire pressure by bluetooth or wireless signal by piezoelectric film sensor 10 itself.
The application uses such structure design, and there is simple in structure, integrated level height, response soon, and to detect tire pressure and be not necessarily to
The features such as external world's power supply.
The application also provides a kind of vehicle, which includes tire 100 described in above example.
The application inside tire 100 by being arranged piezoelectric film sensor 10, on the one hand in detection 100 tire pressure of tire
When without extraneous power supply, on the other hand according to detected tire pressure or tire pressure can be passed through calculate the shape obtained
Become the state that information judges tire, vehicle drive situations and road conditions etc..Therefore driving can be greatly increased using the tire 100
Safety.
Structure based on the various tires that above example is provided, present invention also provides a kind of tire information monitoring sides
Method.
It is the flow diagram of pressure of tire monitoring method in one embodiment of the application referring to Fig. 4.This method includes following
Step：
S110：Acquire tire pressure of the tire in rotation process when being contacted with ground.
Can be the tire pressure for acquiring tire one or more position specifically, in different embodiments.It is appreciated that
, only it is that some in tire puts corresponding pressure of tire and is difficult to reflect the overall condition of entire tire, therefore this in an embodiment
The tire pressure of multiple sectional areas in tire circumferential direction has been counted in embodiment.Convenient for subsequently through averaging, or each segmentation
The modes such as regional correlation judge tire state in which.Specifically, in an embodiment, which includes：Using in tire
Multiple sensors of portion and subsection setup are detected the tire pressure of corresponding sectional area.It should be understood that specific
Sensor can be the piezoelectric film sensor in above example tire, can also be that other pressure sensors or pressure become
It send one or more in device.
Referring to Fig. 5, step S110 specifically includes following steps in another embodiment：
S1101：The tire segmentation in tire is chosen as measurement home block.
One of select in tire the node for the beginning and end that tire segmentation counts Monday as one.Specifically
, the annulus on the same ring week is compared, one of tread contour can be selected as measurement home block.
S1102：Start the current statistic period when the tire pressure on measuring home block is greater than or equal to threshold value, and acquires
Tire pressure on the measurement home block and with the tire pressure on other sectional areas for subsequently being contacted with ground of rotation of tire
Information.
S1103：When the tire pressure on measuring home block is more than or equal to threshold value again, terminate current statistic week
Phase.
I.e. to the measurement home block since when corresponding tire pressure on the measurement home block of tire is more than or equal to threshold value
Tire pressure then identify tire and contact and rotate one week with bottom surface when being more than or equal to threshold value again.
Specifically, in different embodiments, the tire of tire that step S110 is acquired in rotation process when being contacted with ground
Pressure information can be the tire pressure of position or the tire pressure of multiple positions during tyre rotation, can also be
One week tire pressure acquired of tyre rotation can also be the tire pressure acquired in tyre rotation more weeks.
S120：The deformation quantity of tire is obtained according to tire pressure.
Tire is in rotation process, and the position that tire is contacted with ground generates deformation and then generates tire pressure, therefore according to institute
Collected tire pressure counter can push away the deformation quantity for obtaining tire.
For tire after use after a period of time, each position is different from the friction level of bottom surface, therefore each position
Thickness also can difference.The position of different-thickness is produced deformation quantity and local pressure when the contact of ground
Difference, therefore the deformations of tyre amount at each position can be reflected according to the tire pressure at each position of tire.
In one embodiment, step S120 can be specifically the mapping relations for prestoring a tire pressure size and deformations of tyre amount
Table.It then can be according to tire pressure from pre-stored mapping while counting the tire pressure at tire each position or later
The deformations of tyre amount corresponding to it is searched in relation table.
S130：The equivalent redius of tire is calculated according to deformation quantity.
Specifically, all there are one demarcate radius, that is, calibration radius when tire shipment for each tire.Each tyre surface flower
Line is a part for tire, that is, each tread contour corresponds to a small a section arc length, when one or more tread contours by
When to geostatic pressure, that is, corresponding deformation is will produce, the deformation quantity of tread contour can be calculated at this according to this
The corresponding equivalent redius of tread contour.Specifically, during tire rolls, mistake that each tread contour is squeezed by ground
Cheng Zhong, deformation quantity are curvilinear motion, are first gradually increased until largest deformation amount, as tire continues to roll, tire and ground
Contact position is gradually from current tread contour position to next tread contour transition, therefore the deformation quantity of current tread contour is again
It is tapered into since maximum.Calculate the largest deformation amount that used deformation quantity when equivalent redius is the tread contour.
Further, equivalent redius is equal to the difference that calibration radius subtracts the largest deformation amount of corresponding tread contour.
S140：The slip rate of tire is calculated according to equivalent redius.
In one embodiment, the slip rate step that tire is calculated according to equivalent redius includes：
The slip rate is calculated according to following formula：
S=| R2-R1 |/R2；
Wherein, S is the slip rate, and R1 is the equivalent redius, and R2 is the calibration radius of tire.The calibration radius of tire
Refer to the center of circle of tire to the distance of crown outer surface.
Tire pressure when the application is contacted with bottom surface in the process by counting tyre rotation, and according to the tire pressure institute
The deformations of tyre amount of reaction calculates the equivalent redius of tire, finally further calculates the slip rate of tire.According to what is be computed
Slip rate is that can be appreciated that the safety coefficient height of tire, such as when slip rate is more than or equal to predetermined threshold value, represent tire
Safety coefficient is low, there are larger security risk, needs repairing or replaces, and reduces the probability for safety accident occur.
Referring to Fig. 6, in another embodiment, specifically, further comprising the steps of after the slip rate for calculating tire：
S210：Judge whether slip rate is in first threshold range.
Specifically, if the slip rate of tire is too big, then it represents that tire is easy locking, and lateral attachment coefficient is small.For example, working as
When the slip rate of tire is 100%, then it represents that the complete locking of tire, lateral attachment coefficient is 0, that is, tire is in operation
In, it only slides and does not rotate.On the contrary, if the slip rate of tire is too low, the braking adhesion coefficient of tire is relatively low, is easy out
The case where now being difficult to brake.For example, when the slip rate of tire is 0%, then it represents that the braking adhesion coefficient of tire is 0, brake
Failure.Both the above situation is all breakneck situation, so slip rate is needed to be maintained in the threshold range of a safety.
S220：If slip rate within the scope of the first threshold, does not send out hydropac.
When tire in rotation process with ground friction during, one or more section tire pressures occur it is abnormal, then
It is finally reflected and exceeds first threshold range for the slip rate of the tire, send out hydropac at this time, prompt driver to drive a vehicle and pacify
Entirely, even repair or replace the tire.
Further, in another embodiment, further include after the slip rate for calculating tire：According to more in the same tire
The otherness of the tire pressure of a sectional area is to judge tire state in which or drive road conditions.For example, working as tyre rotation
It finishing within one week, the tire pressure of each section of each tire side is significantly greater than the tire pressure of the tire other side in whole process, that
It then may determine that road surface is a slope at this time, thus prompting can be sent out, such as：The section that you are driven is leaning stretch
Please slowly move ahead etc..
For another example, when the difference of maximum tire pressure and minimum tire pressure in multiple sectional areas in tire is more than or equal to predetermined threshold value,
Then judge that local damage occurs in tire.It can then prompt tire local damage occur, or local damage will occur, please in time more
The prompting changed.
Further, in another embodiment, the slip rate before and after comparable vehicle corresponding to tire or tire pressure identification
Drive road conditions.Such as vehicle, when driving into another kind of section from a kind of section, the surface conditions in front and back section are different, the tire reacted
Press information difference, that is, slip rate different.Such as vehicle is from smooth road surface when drive into coarse road surface, before two tires
Tire pressure size be greater than the tire pressure sizes of two tires next certainly.
Further, the driving habit of the driving road condition analyzing driver identified in preset time period can be counted.Tool
Body, preset time can be one month, three months, half a year or 1 year, depending on actual conditions.Sentenced according to analysis
Break driver like driving on rural dirt road, highway, sandy soil either lawn so can by other systems or
Platform is pushed to the user is suitble to his commodity.
It, can be in the tread contour annulus of tire 100 in order to keep finally obtained slip rate more accurate in one embodiment
222 and/or the equal grading ring of corresponding position of smooth annulus 242 set multiple sensors 10, to detect the different each sections of annulus
Tire pressure, and then obtain the slip rate of different annulus.Corresponding being averaged for slip rate of different annulus is finally asked to be worth to tire
Final slip rate.
Referring to Fig. 7, in an embodiment, calculates the final slip rate of tire and include the following steps：
S310：Calculate the slip rate corresponding to tread contour annulus 222
S320：Calculate the slip rate corresponding to smooth annulus 242
S330：It is calculated by the following formula the final slip rate of tire：
S3=S1 × (1/A)+S2 × (1/B)
Wherein S1 is the slip rate corresponding to tread contour annulus 222, and S2 is the slip rate corresponding to smooth annulus 242, A
For the reference pressure value of tread contour annulus 222, B is the reference pressure value of smooth annulus 242.Specifically, tread contour annulus
The reference pressure value of 222 peaceful slip ring bands 242 has measured when tire shipment to be provided.
It is mainly combined in the prior art using wheel speed sensors and acceleration transducer to calculate slip rate indirectly
Method.The system and device being combined using wheel speed sensors and acceleration transducer is more scattered, is easy to cause signal transmission
The case where time delay.Therefore the tyre skidding rate more fast accurate that the application is calculated, can more react the situation of tire various aspects.
Further, referring to Fig. 8, the application also provides a kind of tyre skidding rate computing device 200, the computing device 200 packet
Include the tire pressure acquisition module 90 being electrically connected with each other and computing module 91.Specifically, tire pressure acquisition module 90 is used
In tire pressure of the acquisition tire in rotation process when being contacted with ground.Computing module 91 is used to be obtained according to tire pressure and take turns
The deformation quantity of tire calculates the equivalent redius of tire according to deformation quantity, and the slip rate of tire is calculated according to equivalent redius.
The application also provides a kind of vehicle antilocking braking system, which includes the tyre skidding rate as described in above example
Computing device.
Vehicle in one embodiment of the application includes tire and the vehicle antilocking braking system.Specifically, optionally, one implements
In example, inside tires along the multiple piezoelectric film sensors of circumferentially segmented setting of tire, use respectively by each piezoelectric film sensor
In detect its corresponding to tire sectional area on tire pressure.And then can during tyre rotation in time comprehensively
Obtain the tire pressure of tire everywhere.So that the tire pressure acquired is more accurate and comprehensive.
Further, the application also provides a kind of device with store function, which has program stored therein data, intermediate range
Ordinal number evidence is performed the method as described in any of the above embodiment of realization.Optionally, the above-mentioned device with store function
Can be that mobile unit, personal computer, server, the network equipment or USB flash disk etc. are one such.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (10)
1. a kind of tire, which is characterized in that the inside tires are passed along the multiple piezoelectric membranes of circumferentially segmented setting of the tire
Sensor, each piezoelectric film sensor are respectively used to detect the tire pressure letter on the sectional area of the tire corresponding to it
Breath.
2. tire as described in claim 1, which is characterized in that the tire includes crown, the outer surface setting of the crown
The tread contour for having circumferentially subsection setup is internally corresponding to be arranged at the position of the tread contour in the tire
Piezoelectric film sensor is stated, to generate the tire pressure for detecting the corresponding tread contour when deformation in the tread contour.
3. tire as claimed in claim 2, which is characterized in that the tire further includes being located at tread contour described in inside tires
Primer layer；The piezoelectric film sensor is arranged between the tread contour and the primer layer.
4. tire as claimed in claim 3, which is characterized in that the tire further includes the crown being located on the inside of the primer layer
Protective layer and crown belt, the piezoelectric film sensor between the crown protective layer and the primer layer, or
The piezoelectric film sensor is between the crown protective layer and the crown belt.
5. tire as claimed in claim 2, which is characterized in that each tread contour is correspondingly arranged piezoelectric membrane sensing
Device.
6. tire as claimed in claim 2, which is characterized in that the tread contour is divided into mutually along the axial direction of the tire
At least two parallel tread contour annulus, respectively subsection setup has multiple pressures at least two tread contours annulus
Conductive film sensor.
7. tire as claimed in claim 6, which is characterized in that the crown outer surface further includes being set to the tread contour
The lateral smooth annulus of annulus, the smooth annulus subsection setup have multiple piezoelectric film sensors.
8. tire as claimed in claim 7, which is characterized in that the smooth annulus is located at the both sides of the edge of the crown, institute
Tread contour annulus is stated between the smooth annulus.
9. such as claim 1-8 any one of them tires, which is characterized in that the tire further includes the letter being electrically connected with each other
Cease sampling module and information sending module, the piezoelectric film sensor on same circumference is electrically connected by conducting wire, and with it is described
Intelligence sample module is electrically connected；Described information sampling module is for collecting the tire that the piezoelectric film sensor is sent out successively
Information, described information sending module is pressed to be used to outwardly send the tire pressure or calculate the shape obtained through the tire pressure
Become information.
10. a kind of vehicle, which is characterized in that including claim 1-9 any one of them tires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721925413.6U CN207916470U (en) | 2017-12-29 | 2017-12-29 | A kind of tire and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721925413.6U CN207916470U (en) | 2017-12-29 | 2017-12-29 | A kind of tire and vehicle |
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| Publication Number | Publication Date |
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| CN207916470U true CN207916470U (en) | 2018-09-28 |
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ID=63615954
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721925413.6U Active CN207916470U (en) | 2017-12-29 | 2017-12-29 | A kind of tire and vehicle |
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| CN (1) | CN207916470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113859154A (en) * | 2021-09-18 | 2021-12-31 | 北京航空航天大学 | System and method for generating power and feeding back information based on tire deformation |
-
2017
- 2017-12-29 CN CN201721925413.6U patent/CN207916470U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113859154A (en) * | 2021-09-18 | 2021-12-31 | 北京航空航天大学 | System and method for generating power and feeding back information based on tire deformation |
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