CN109703296A - Tire wear degree detection method and device and tire - Google Patents
Tire wear degree detection method and device and tire Download PDFInfo
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- CN109703296A CN109703296A CN201910160399.2A CN201910160399A CN109703296A CN 109703296 A CN109703296 A CN 109703296A CN 201910160399 A CN201910160399 A CN 201910160399A CN 109703296 A CN109703296 A CN 109703296A
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Abstract
The present invention relates to a kind of tire wear degree detection method and device and tire, tire wear degree detection device includes: mounting portion, test section and detection chip；The connecting pin of mounting portion and test section plugs, and is inserted into tire on the inside of tire by the insertion end that mounting portion will test portion；Test section includes conducting ring, flexible electrode and flexible resistor medium；Conducting ring is set in the inner wall of mounting portion, and flexible electrode is connected on the outside of conducting ring；Flexible resistor medium is filled with inside flexible electrode；The conducting end of flexible resistor medium is connected with the bottom of conducting ring；Detection chip is connected by modulus conversion chip with flexible electrode, for detecting the detection electric current of flexible electrode generation；When the wear tip of flexible resistor medium is worn in vehicle travel process, with the variation of resistance value in flexible resistor medium, the detection chip detects the value corresponding change of detection electric current caused by flexible electrode, to determine the degree of wear value of the tire according to the variation of detection electric current.
Description
Technical field
The present invention relates to technical field of traffic transportation more particularly to a kind of tire wear degree detection method and device and wheels
Tire.
Background technique
Tire is one of important component of automobile, it is directly contacted with road surface, subjects the weight and automotive suspension of automobile
Jointly come impact suffered when mitigating running car.The state of tire will have a direct impact on the driving comfort of automobile, traveling
Ride comfort and drive safety.Good tire condition can guarantee that vehicle and road surface have good adhesion, improve leading for automobile
Drawing property, braking and passability.Importantly, good tire condition is the important prerequisite of safe driving.Especially for
For more wheel large cars, effective detection to vehicle tyre, security risk caused by can eliminating in time because of tire, thus effectively
Traffic accident caused by avoiding because of tire.
Firstly, also only resting on artificial observation level for degree of tire abrasion detection at present, this detection mode cannot
The security risk of discovery tire in time, and the result of artificial observation is easy to be affected by human factors, and these unstable factors are normal
It is often the major reason for leading to safety accident.
Secondly, people are easy to tend to pay close attention to the tractor in towed vehicle, and are easy in current land logistics transportation
Ignore the trailer in towed vehicle.But tractor is due to there is driver driving, so the detection to tractor is relatively easy, but just
For logistics company, the monitoring of trailer is only and needs focal point, but this exactly difficult point.In the prior art, in trailer
The detection of degree of tire abrasion is very high for the technique requirement of tire itself, is unfavorable for the universal of degree of tire abrasion detection.
Therefore, how to realize that the degree of wear of tire is precisely judged in automation, tire art needs solve instantly
One of difficult point.
Summary of the invention
The purpose of the present invention is in view of the drawbacks of the prior art, providing a kind of tire wear degree detection device, will have soft
Property resistance medium tire wear degree detection device implantation tire after, by calculating, resistance value is true in flexible resistor medium after abrasion
Degree of tire abrasion is determined, so that the degree of wear that the present apparatus may be implemented automation, accurately detect tire.Also, the present invention
The tire wear degree detection device that embodiment provides is at low cost, is easy to load on existing vehicle, it is convenient to existing tire into
Row upgrading.
To achieve the above object, in a first aspect, the present invention provides a kind of tire wear degree detection device, the tire
Abradability detection device includes: mounting portion, test section and detection chip；
The connecting pin of the mounting portion and the test section plugs, by the mounting portion by the insertion of the test section
End is on the inside of tire in insertion tire；
The test section includes conducting ring, flexible electrode and flexible resistor medium；
The conducting ring is set in the inner wall of the mounting portion, also, is connected on the outside of the conducting ring described soft
Property electrode；
The flexible resistor medium is filled with inside the flexible electrode；
The conducting end of the flexible resistor medium is connected with the bottom of the conducting ring；
The detection chip is connected by modulus conversion chip with the flexible electrode, is produced for detecting the flexible electrode
Raw detection electric current；
When the wear tip of the flexible resistor medium is worn in vehicle travel process, with the flexible resistor medium
The variation of middle resistance value, the detection chip detects the value corresponding change of detection electric current caused by flexible electrode, thus root
The degree of wear value of the tire is determined according to the variation of detection electric current.
Preferably, the mounting portion includes metal shell and test section protective case；
The inner wall of the metal shell is provided with the connecting pin of the test section；The test section protective case is for being set in
On the test section；
When the insertion end of the test section is inserted into the test section protective case, the top socket of the test section protective case
In the bottom of the metal shell.
It is further preferred that the mounting portion further includes sealing screw；
It is screwed at the top of the sealing screw and the metal shell；
When the insertion end of the test section is inserted into the test section protective case and the sealing screw and the metal shell
Top when being screwed on, the sealing screw, the metal shell and the test section protective case constitute closed structure.
Preferably, the tire wear degree detection device further includes battery；
The battery is used to provide pulse voltage to the test section and the detection chip.
It is further preferred that the tire wear degree detection device further includes divider resistance；
The anode of the divider resistance is connected with the battery, and the cathode of the divider resistance and the flexible electrode are just
Extremely it is connected, so that the pulse voltage that the battery provides exports after divider resistance partial pressure to the flexible electrode.
Preferably, the test section is specifically used for:
When the insertion end of the test section is inserted into tire on the inside of tire, the test section passes through the steel of the tire
Net, so that the end face of the wear tip of flexible resistor medium is flushed with the wear surface of tyre tread layer in the test section.
In second aspect, the present invention provides a kind of tire wear degree inspections for being implemented in above-mentioned tire wear degree detection device
Survey method, which comprises
Tire wear degree detection device is implanted into tire, so that the flexible resistor in the tire wear degree detection device
The end face at Mediawear end is flushed with the wear surface of tyre tread layer；
When the abrasion surface wear of the tyre tread layer, the wear tip of the flexible resistor medium is with tyre tread layer
Abrasion and wear；
Flexible electrode is provided with outside the flexible resistor medium；
The flexible electrode is connected by modulus conversion chip with detection chip, is detected to the detection chip described soft
Property electrode caused by detect electric current；
When the flexible resistor Mediawear, the detection chip detects the detection electric current of the flexible electrode output
Corresponding change, to determine the degree of wear value of tire according to the variation of detection electric current.
It is further preferred that described be implanted into the tire wear degree detection device in tire, so that the tire wear
The end face at the flexible resistor Mediawear end in degree detection device is flushed with the wear surface of tyre tread layer specifically:
Determine that the tire wear degree detection device is implanted into the implantation position of the tire by manipulator, according to the plant
Enter position the tire wear degree detection device is implanted into tire；
Dismantle the test section protective case in the tire wear degree detection device；
The detection chip is mounted on to the top of metal shell in the tire wear degree detection device；
The wear tip of the flexible resistor medium is cut and protrusion part that the tire tread is compared, so that the flexibility
The end face of the wear tip of resistance medium is flushed with the wear surface of tyre tread layer.
It is further preferred that the removal flexible resistor medium wear tip compare with the tire tread it is convex
Out after part, the method also includes:
The detection chip detects current detection electric current, obtains initial resistivity value；
After the wear tip abrasion of the flexible resistor medium being filled in the flexible electrode, the detection chip inspection
Current detection electric current is surveyed, the detection resistance value is obtained；
Increased resistance value is obtained according to the initial resistivity value and the detection resistance value；
The degree of wear value of the tire is determined according to the increased resistance value.
The third aspect, the present invention provides a kind of tire, the tire include mounting portion as described in above-mentioned first aspect,
Test section and detection chip.
Tire wear degree detection device provided by the invention will have the tire wear degree detection device of flexible resistor medium
After being implanted into tire, by calculating, resistance value determines degree of tire abrasion in flexible resistor medium after abrasion, so that the present apparatus can be with
The degree of wear realized automation, accurately detect tire.Also, tire wear degree detection device provided in an embodiment of the present invention
It is at low cost, it is easy to load on existing vehicle, it is convenient that upgrading is carried out to existing tire.
Detailed description of the invention
Fig. 1 is the overall structure diagram of tire wear degree detection device provided in an embodiment of the present invention；
Fig. 2 is the inside partial structural diagram of tire wear degree detection device provided in an embodiment of the present invention；
Fig. 3 is tire profile structural schematic diagram provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of the tyre tread layer section provided in an embodiment of the present invention during tire wear；
Fig. 5 is the schematic diagram of detection circuit in tire wear degree detection device provided in an embodiment of the present invention；
Fig. 6 is the method flow diagram of tire wear degree detection method provided in an embodiment of the present invention.
Specific embodiment
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
The embodiment of the present invention provides firstly a kind of tire wear degree detection device, and Fig. 1 is provided in an embodiment of the present invention
The overall structure diagram of tire wear degree detection device, Fig. 2 are tire wear degree detection device provided in an embodiment of the present invention
Inside partial structural diagram, Fig. 3 be tire profile structural schematic diagram provided in an embodiment of the present invention, in conjunction with Fig. 1-Fig. 3 institute
Show, tire wear degree detection device includes: mounting portion 1, test section 2, detection chip 3 and battery 4.
Mounting portion 1 and the connecting pin of test section 2 plug.Mounting portion 1 is used to for tire wear degree detection device being implanted into and take turns
In tire.Test section 2 can be understood as a tire wear degree sensing device, for detecting the wear intensity of tire.Detection chip 3 can
There is the single-chip microcontroller for receiving signal and calculating data function to be interpreted as one, the detection electricity for sending according to test section 2
Stream calculation obtains the degree of wear value of tire.Battery 4 is used to provide stable pulse voltage to test section 2 and detection chip 3.
Fig. 3 is tire profile structural schematic diagram provided in an embodiment of the present invention, in conjunction with shown in Fig. 1-3, the inspection of tire wear degree
When surveying device insertion tire 6, test section 2 is inserted on the inside of tire, across the steel mesh of tire, and is vertically pierced by the decorative pattern of tire
Layer, and the end face of 2 insertion end of test section is flushed with the wear surface of tyre tread layer.When tire flower-pattern layer vehicle driving on the way
When abrasion, the end face of insertion end can also be worn with the abrasion of tyre tread in test section 2.
Further specifically, mounting portion 1 includes metal shell 11, test section protective case 12 and sealing screw 13.
Metal shell 11 is that outside has multiple groove structures, for present tire Abradability detection device to be implanted into and consolidate
It is scheduled in tire.The inner wall of metal shell 11 is provided with the connecting pin of test section 2, passes through the metal shell 11 into mounting portion 1
Applying external force can drive the insertion end of test section 2 on the inside of tire in insertion tire, and test section 2 flexible is passed through
Tire steel mesh.After the insertion end of test section 2 is inserted into tire on the inside of tire, metal shell 11 is in tyre vulcanization and tire
Rubber blends, so that tire wear degree detection device is fixed in the rubber of tire.
Test section protective case 12 is for protecting test section 2 not deformed, worn during being inserted into tire.Also, it examines
The bottom of survey portion protective case 12 is the inverted cone-shaped with barb slot structure, and inverted cone-shaped tip facilitates insertion into tire, barb
Slot structure is extracted after facilitating insertion into tire.When the insertion end of test section 2 is inserted into test section protective case 12, test section protective case 12
Probe portion 2 can be wrapped, and the top of test section protective case 12 is socketed on the bottom of metal shell 11, so that test section is protected
Set 12 is seamlessly connected with metal shell 11.After test section 2 is inserted into tire, needs to will test portion's protective case 12 on the outside of tire and pull out
Out, so that after tyre vulcanization, test section 2 can be blended with the rubber of tyre tread layer.
Sealing screw 13 and the top of metal shell 11 are screwed on.When test section 2 insertion end be inserted into test section protective case 12,
And the top of sealing screw 13 and metal shell 11 is when being screwed on, sealing screw 13, metal shell 11 and 12 structure of test section protective case
At closed structure.When sealing screw 13, metal shell 11 and test section protective case 12 constitute closed structure, test section can avoid
2 enter foreign matter when tire used vulcanizing agent vulcanizes, and lead to 3 poor contact of detection chip in test section 2.
Again as shown in Fig. 2, test section 2 includes conducting ring 21, flexible electrode 22 and flexible resistor medium 23.Conducting ring 21 is set
It is placed in the inner wall of metal shell 11, is connected with the bottom of sealing screw 13 after being screwed on.The outside of conducting ring 21 is separately connected
Flexible electrode 22 is filled with flexible resistor medium 23 inside flexible electrode 22.Flexible electrode 22 and flexible resistor medium 23 are equal
Using can with tire flexibility change and the material of Light deformation.For example, electric silica gel material, flexible electrical can be used in flexible electrode 22
The internal rubber material doped with conducting metal particles can be used in resistance medium 23.Also, the resistance material of honoured resistance medium 23
Characteristic be when material is worn, two inter-electrode conductive section of resistance is reduced, and resistance will increase.Flexible resistor medium 23 wraps
Conducting end and wear tip are included, conducting end is connected with the bottom of conducting ring 21, wear tip and the tangent line of tire tread and vertical phase
It hands over, so that the end face (end face of 2 insertion end of test section) of wear tip is flushed with the wear surface of tyre tread layer, this process can also
To be interpreted as the process corresponding with pattern depth of making property resistance medium 23.And when the flower-pattern layer of tire is on vehicle driving way
When middle abrasion, the wear tip (end face of insertion end in test section 2) of flexible resistor medium 23 also can with the abrasion of tyre tread and
Abrasion, at this time in flexible resistor medium 23 resistance value variation so that be filled with flexible resistor medium 23 22 institute of flexible electrode
The detection electric current of generation also corresponding change.
Further specifically, Fig. 4 is the schematic diagram of tyre tread layer section during tire wear, illustrate that tire exists
State in wear process, after becoming abrasion from non-state of wear.As shown in figure 4, dash area indicates vehicle tyre in Fig. 4
Flower-pattern layer part, tire A represent state when tire is not worn, at this point, the height of unworn flexible resistor medium 23
For H, generated initial resistance is R0, the voltage of flexible electrode 22 is U0, generated electric current is I0；In vehicle travel process
In, the flower-pattern layer of tire will receive abrasion, and tire becomes B state from A condition, at this point, the voltage at 22 both ends of flexible electrode is U0
Constant, 23 height of flexible resistor medium being worn is h, and detection resistance value caused by remaining flexible resistor medium 23 becomes
R1, electric current caused by flexible electrode becomes I1。
Detection electric current, inspection caused by voltage provided by flexible electrode in the embodiment of the present application, flexible resistor medium
Measuring resistance and unworn flexible resistor medium level have relationship shown in formula 1:
Electric current I is detected known to formula 11It is h, that is, the abrasion loss of tire with 23 height of flexible resistor medium being worn
At once linear relationship, and detect electric current I1It can reduce with the increase of the abrasion loss of tire.And it is possible thereby to derive formula 2
With formula 3:
The detection resistance value R known to formula 21It is h, that is, the abrasion of tire with 23 height of flexible resistor medium being worn
Amount is equally at once linear relationship, and detection resistance value R1It can increase with the increase of the abrasion loss of tire.And it is possible thereby to
Derive formula 3.
According to the pass of flexible resistor medium 23 height and initial resistivity value and detection resistance value that formula 3 is worn
System, and the flexible resistor medium 23 by being worn highly determines the degree of wear value of tire.
It determines that tire wear amount is advantageous in that by detection electric current and resistance, in some special circumstances, works as wheel
When by the road surface that has water, water, which is attached on wheel, can make wheel and the resistance value of flexible resistor medium become smaller, flexible electrode
Generated detection electric current becomes larger, so that detection electric current and the numerical value of detection resistance value inaccuracy, but this will not influence this
The detection of tire wear amount in embodiment.Because detecting tire abrasion loss by above-mentioned apparatus, tire wear amount is bigger, flexible electrical
The detection resistance value for hindering medium is bigger, and detection electric current is smaller, rather than because detection resistance value caused by conductive materials becomes smaller, detection electricity
Rheology is big.According to this characteristic, current detection resistance value R is being determined1When whether can be used, the following two kinds mode can be taken:
In the first way, initial electricity caused by flexible resistor medium when detection chip can recorde down not frayed
Resistance value R0, or one resistance threshold R of setting2If in vehicle travel process, detection resistance value R1Less than initial resistance R0, or be less than
Predetermined resistance value R2, then illustrate current detection resistance value R1For vehicle in special state the generated exceptional value for needing to reject,
It is not used in the degree of wear for calculating current vehicle tire.
In the second way, detection chip timing continuously acquires detection resistance value R1, due to detection resistance value R1It only can be because
For the abrasion of tire and it is increasing, if therefore current detection resistance value R1Greater than a upper detection resistance value R1When value, it can also say
Bright current detection resistance value R1For vehicle in special state the generated exceptional value for needing to reject, then current detection resistance value
R1It is not used in the degree of wear for calculating current vehicle tire.
Further specifically, again as shown in Fig. 2, detection chip 3, which can be understood as one kind, is integrated in the detection of tire wear degree
Single-chip microcontroller in device, for detecting the detection electric current of flexible electrode generation.For example, detection chip 3 can use sp370 type core
Piece.The other positions that will not be worn down in the top of metal shell 11 or tire can be set in detection chip 3.Preferably,
To save electric energy, detection chip 3 needs to obtain the data of one-time detection electric current, the time of acquisition every 1 hour or 1 hour or more
It needs to control in 10 milliseconds.
When the wear tip of flexible resistor medium is worn in vehicle travel process, with resistance value in flexible resistor medium
Variation, electric current corresponding change is detected caused by the flexible electrode of be filled with flexible resistor medium, so that detection core
Piece determines the degree of wear value of tire according to the variation of institute's detection resistance.
In a specific example, the detection circuit of tire wear degree detection device provided in an embodiment of the present invention is illustrated
Figure is as shown in Figure 5.In conjunction with Fig. 2 and Fig. 5, battery 4 provides work electricity to detection chip 3 by the Voltage stabilizing module in detection circuit
Energy.Meanwhile battery 4 is connected with the anode of divider resistance 5, the cathode of divider resistance 5 is connected with the anode 221 of flexible electrode 22,
So that the pulse voltage that battery 4 provides exports after the partial pressure of divider resistance 5 to flexible electrode 22, to flexible electrode 22 according to arteries and veins
It rushes voltage and generates detection electric current.Also, detection chip 3 passes through 221 phase of anode of modulus modulus conversion chip and flexible electrode 22
Even, the detection electric current that flexible electrode 22 generates is received.The cathode 222 of flexible electrode 22 is connected with battery 4, so that battery 4, partial pressure
A complete circuit is constituted between resistance 5, flexible electrode 22 and detection chip 3.For example, the model of modulus conversion chip can
To use ADC081C021 cake core.
When the switch in 3 control figure 5 of detection chip is opened, the pulse voltage load after Voltage stabilizing module pressure stabilizing is being divided
On the series circuit of resistance 5 and flexible resistor medium 23 (flexible resistor medium 23 is filled in flexible electrode 22) composition.Point
The resistance value of piezoresistance 5 is known, then the voltage value of modulus conversion chip is subtracted by the voltage in Voltage stabilizing module, be can be obtained
The voltage of 5 both ends of divider resistance load, can must then flow through the electric current of flexible resistor medium 23 (because of divider resistance and flexible resistor
The resistance value of medium is smaller, and the electric current of modulus conversion chip consumption is negligible not to be remembered).
In some preferred embodiments, the tire wear degree detection device in the application further includes bar code or two dimension
Code, for carrying out identity to tire wear degree detection device.
Tire wear degree detection device provided in an embodiment of the present invention examines the tire wear degree with flexible resistor medium
After surveying device implantation tire, degree of tire abrasion is determined by resistance value in flexible resistor medium after calculating abrasion, so that this dress
The degree of wear set and automation may be implemented, accurately detect tire.Also, tire wear degree inspection provided in an embodiment of the present invention
It is low to survey installation cost, is easy to load on existing vehicle, it is convenient that upgrading is carried out to existing tire.
When tire wear degree detection device provided by the above embodiment carries out the detection of tire wear degree through the invention,
The detection method tire wear degree detection method step that such as the following embodiments of the present invention provide executes.
Fig. 6 is the method flow diagram of tire wear degree detection method provided in an embodiment of the present invention, as shown in fig. 6, this hair
Bright embodiment additionally provides a kind of tire wear degree detection method realized according to above-mentioned tire wear degree detection device, realizes
In the application scenarios for the tire wear degree detection device that first embodiment of the invention provides, in conjunction with shown in Fig. 1-Fig. 5, this hair
The tire wear degree detection method process that bright embodiment provides mainly includes the following steps:
Step 110, tire wear degree detection device is implanted into tire；
Specifically, before tyre vulcanization needing that tire wear degree detection device is implanted into tire by manipulator.It is planting
During entering, need to be implanted into the position that tire wear degree detection device is implanted into tire by manipulator precise positioning.Manipulator
When being implanted into tire wear degree detection device, the test section 2 in tire wear degree detection device needs the steel mesh across tire, and
The position of the position and vulcanizing agent decorative pattern that ensure tire wear degree detection device implantation tire corresponds.
Further specifically, the position of tire wear degree detection device implantation tire needs to meet following requirement: first
First, the needs of sealing screw 13 in tire wear degree detection device are flushed with tire inner tread, in order to avoid sulphur is hurt when vulcanization
Change equipment liner；Secondly, the position that the implantation position of tire wear degree detection device needs to have decorative pattern after tyre vulcanization, and
Implantation position is marked；Again, the barb slot needs of test section protective case 12 are being implanted into tire wear degree detection device
Expose the flower-pattern layer of tire, afterwards in order to which the subsequent portion's protective case 12 that will test is extracted.
Step 120, the test section protective case in detaching tyre Abradability detection device；
Specifically, needing to carry out tire inner tread cleaning after tire wear degree detection device is implanted into tire and beating
Mill gluing, then on the outside of tire, that is, flower-pattern layer, it will test the extraction of portion's protective case 12, so that will test portion's protective case 12
It is separated with the test section 2 in tire wear degree detection device.
After the test section protective case in detaching tyre Abradability detection device, needs will test chip 3 and be mounted on wheel
The other positions that will not be worn down in the top of metal shell 11 or tire in tire Abradability detection device.It needs to illustrate
It is, since detection chip 3 cannot bear high temperature, it is therefore desirable to test section 2 be waited to vulcanize after the completion just mountable detection chip 3.
Step 130, the protrusion part that the wear tip of cutting flexible resistor medium and tire tread are compared；
Specifically, manipulator screws out the sealing in tire wear degree detection device after having dismantled test section protective case 12
Screw 13, so that the test plug of detection chip 3 is inserted into tire wear degree detection device.It will be inserted into tire simultaneously
In, in tire wear degree detection device flexible resistor medium 23 compared on the outside of tire flower-pattern layer tread lugs segmentation fall,
So that the end face of the wear tip of flexible resistor medium 23 is flushed with the wear surface of tyre tread layer, this process it can be appreciated that
The process corresponding with pattern depth of making property resistance medium 23.
Step 140, detection chip detects and records initial resistivity value；
Specifically, detection chip 3 detects electric current according to caused by the flexible electrode 22 in tire wear degree detection device
Calculate and record the initial resistivity value of present tire.It is soft in tire when initial resistivity value can be understood as tire and not yet be worn
The resistance value of property resistance medium 23.
In some preferred embodiments, new tire is after being implanted into tire wear detection device, when detection chip detects
When initial resistivity value, it is thus necessary to determine that within a predetermined range whether, if assert if, the initial resistivity value is available for the initial resistivity value
In corresponding crude tyre pattern depth.It, will be using the initial resistivity value as measuring basis, if subsequent inspection during tire wear
The detection resistance value measured is less than the initial resistivity value, then the detection resistance value is invalid.
Step 150, in the wear process of tire, detection chip, which detects, detects electric current caused by flexible electrode；
Specifically, flexible electrode 22 receives pulse current, when the flexible resistor medium 23 being filled in flexible electrode 22
When resistance changes, pulse current also corresponding change therewith finally exports again through flexible electrode 22, causes analog-to-digital conversion channel
Voltage change, finally obtain detection electric current, thus realize flexible electrode 22 by analog-to-digital conversion channel will test electric current send
Detection chip 3.
Step 160, detection resistance value is calculated according to detection electric current, and degree of tire abrasion is obtained according to detection resistance value
Value；
Specifically, detection resistance is calculated according to detection electric current in detection chip 3, and determines flexibility according to detection resistance value
The degree of wear of resistance medium 23, so that it is determined that degree of tire abrasion value.
Further specifically, after the wear tip abrasion for the flexible resistor medium being filled in flexible electrode, detection chip
Current detection electric current is detected, detection resistance value is calculated according to detection electric current.Then according to initial resistivity value and current detection
Increased resistance value is calculated in resistance value, and the degree of wear value of tire is determined according to increased resistance value.
The principle and specific embodiment of step 150-160 is in the embodiment of above-mentioned degree of tire abrasion detection device
Illustrate (detection electric current, detection resistance caused by voltage provided by flexible electrode described above, flexible resistor medium and
Unworn flexible resistor medium level, with relationship shown in formula 1, formula 2, formula 3), details are not described herein.
In the detection process of detection chip 3, following several situations are likely encountered, detection chip 3 is needed to carry out special place
Reason:
In the first case, if detection chip 3 detects that detection resistance value mutates, and the changing value is not default
In zone of reasonableness, then detection chip 3 determines that present tire wear detector is abnormal.For example, when 3 repeated detection of detection chip arrives
Detection resistance value it is infinitely great or when being less than preset value, determine that present tire wear detector is abnormal.
In second situation, if detection chip 3 detects that detection resistance value only has the trend gradually slowly increased, examine
Surveying chip 3 can determine that the detection resistance value is that need to filter out because of resistance value abnormal data caused by the factors such as rainwater, soil.
In some preferred embodiments, detected obtained by the detection resistance value of flexible resistor medium 23 according to detection chip 3
The degree of tire abrasion value arrived needs to be uploaded to server, and server is according to data such as the tire temperature tire pressures of existing present tire
Value further calibrates degree of tire abrasion value.
Tire wear degree detection method provided in an embodiment of the present invention examines the tire wear degree with flexible resistor medium
After surveying device implantation tire, degree of tire abrasion is determined by resistance value in flexible resistor medium after calculating abrasion, so that this dress
The degree of wear set and automation may be implemented, accurately detect tire.Also, tire wear degree inspection provided in an embodiment of the present invention
Survey method is easy to operate, is easy to load on existing vehicle, convenient to carry out upgrading to existing tire.
Correspondingly, the embodiment of the invention also provides a kind of tires based on above-mentioned tire wear degree detection device, then tie
It closes shown in Fig. 1-5, tire includes: mounting portion 1, test section 2, detection chip 3 and tire body 6.Mounting portion 1 and test section 2
Connecting pin plugs, and is implanted into the insertion end of the test section 2 in tire body 6 on the inside of tire by mounting portion 1.Detect core
Piece 3 is connected with the current output terminal of test section 2, and the data for being sent according to test section 2 obtain the degree of wear value of tire.
The other positions that will not be worn down in the top of mounting portion 1 or tire can be set in detection chip 3.
Test section 2 includes conducting ring 21, flexible electrode 22 and flexible resistor medium 23.The outside of conducting ring 21 is separately connected
Flexible electrode 22.The outside of conducting ring 21 is connected separately with flexible electrode 22, is filled with flexible resistor inside flexible electrode 22
Medium 23.Flexible resistor medium 23 includes conducting end and wear tip, and conducting end is connected with the bottom of conducting ring 21, wear tip and
The tangent line of tire tread with intersect vertically so that the end face (end face of 2 insertion end of test section) of wear tip and tyre tread layer
Wear surface flushes.
When the tyre tread layer abrasion in tire body 4, the wear tip of flexible resistor medium 23 (is inserted into test section 2
The end face at end) can also be worn with the abrasion of tyre tread, at this time in flexible resistor medium 23 resistance value variation so that filling
Electric current also corresponding change is detected caused by the flexible electrode 22 of flexible resistance medium 23.It is determined with specific reference to detection electric current
Mounting portion 1, test section 2,3 specific structure relationship of detection chip are ground in above-mentioned tire in the method and tire of tire wear degree
It is illustrated in damage degree detection device and tire wear degree detection method, details are not described herein.
Tire provided in an embodiment of the present invention, by being provided with the tire wear degree detection device of flexible resistor medium,
Calculate after abrasion that resistance value determines degree of tire abrasion in flexible resistor medium, so that automation, accurately may be implemented in tire
Detect the degree of wear of tire.
Professional should further appreciate that, described in conjunction with the examples disclosed in the embodiments of the present disclosure
Unit and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, hard in order to clearly demonstrate
The interchangeability of part and software generally describes each exemplary composition and step according to function in the above description.
These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.
Professional technician can use different methods to achieve the described function each specific application, but this realization
It should not be considered as beyond the scope of the present invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can be executed with hardware, processor
The combination of software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only memory
(ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In any other form of storage medium well known to interior.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of tire wear degree detection device, which is characterized in that the tire wear degree detection device includes: mounting portion, inspection
Survey portion and detection chip；
The connecting pin of the mounting portion and the test section plugs, by the mounting portion by the insertion end of the test section from
On the inside of tire in insertion tire；
The test section includes conducting ring, flexible electrode and flexible resistor medium；
The conducting ring is set in the inner wall of the mounting portion, also, the flexible electrical is connected on the outside of the conducting ring
Pole；
The flexible resistor medium is filled with inside the flexible electrode；
The conducting end of the flexible resistor medium is connected with the bottom of the conducting ring；
The detection chip is connected by modulus conversion chip with the flexible electrode, for detecting the flexible electrode generation
Detect electric current；
When the wear tip of the flexible resistor medium is worn in vehicle travel process, with electric in the flexible resistor medium
The variation of resistance value, the detection chip detects the value corresponding change of detection electric current caused by flexible electrode, so that institute
State the degree of wear value that detection chip determines the tire according to the variation of detection electric current.
2. tire wear degree detection device according to claim 1, which is characterized in that the mounting portion includes metal shell
With test section protective case；
The inner wall of the metal shell is provided with the connecting pin of the test section；The test section protective case is described for being set in
On test section；
When the insertion end of the test section is inserted into the test section protective case, institute is socketed at the top of the test section protective case
State the bottom of metal shell.
3. tire wear degree detection device according to claim 2, which is characterized in that the mounting portion further includes sealing spiral shell
Nail；
It is screwed at the top of the sealing screw and the metal shell；
When the insertion end of the test section is inserted into the top of the test section protective case and the sealing screw and the metal shell
When portion is screwed on, the sealing screw, the metal shell and the test section protective case constitute closed structure.
4. tire wear degree detection device according to claim 1, which is characterized in that the tire wear degree detection device
It further include battery；
The battery is used to provide pulse voltage to the test section and the detection chip.
5. tire wear degree detection device according to claim 4, which is characterized in that the tire wear degree detection device
It further include divider resistance；
The anode of the divider resistance is connected with the battery, the positive phase of the cathode of the divider resistance and the flexible electrode
Even, so that the pulse voltage that the battery provides exports after divider resistance partial pressure to the flexible electrode.
6. tire wear degree detection device according to claim 1, which is characterized in that the test section is specifically used for:
When the insertion end of the test section is inserted into tire on the inside of tire, the test section passes through the steel mesh of the tire,
So that the end face of the wear tip of flexible resistor medium is flushed with the wear surface of tyre tread layer in the test section.
7. a kind of tire wear degree detection method, which is characterized in that the described method includes:
Tire wear degree detection device is implanted into tire, so that the flexible resistor medium in the tire wear degree detection device
The end face of wear tip is flushed with the wear surface of tyre tread layer；
When the abrasion surface wear of the tyre tread layer, the wear tip of the flexible resistor medium with tyre tread layer mill
It damages and wears；
Flexible electrode is provided with outside the flexible resistor medium；
The flexible electrode is connected by modulus conversion chip with detection chip, detects the flexible electrical to the detection chip
Electric current is detected caused by extremely；
When the flexible resistor Mediawear, the detection chip detects that the detection electric current of the flexible electrode output is corresponding
Variation, to determine the degree of wear value of tire according to the variation of detection electric current.
8. tire wear degree detection method according to claim 7, which is characterized in that described to examine the tire wear degree
It surveys in device implantation tire, so that the end face at the flexible resistor Mediawear end in the tire wear degree detection device and tire
The wear surface of flower-pattern layer flushes specifically:
Determine that the tire wear degree detection device is implanted into the implantation position of the tire by manipulator, according to the implantation position
It sets and the tire wear degree detection device is implanted into tire；
Dismantle the test section protective case in the tire wear degree detection device；
The detection chip is mounted on to the top of metal shell in the tire wear degree detection device；
The wear tip of the flexible resistor medium is cut and protrusion part that the tire tread is compared, so that the flexible resistor
The end face of the wear tip of medium is flushed with the wear surface of tyre tread layer.
9. tire wear degree detection method according to claim 8, which is characterized in that in the removal flexible resistor
After the protrusion point that the wear tip of medium and the tire tread are compared, the method also includes:
The detection chip detects current detection electric current, obtains initial resistivity value；
After the wear tip abrasion of the flexible resistor medium being filled in the flexible electrode, the detection chip detection is worked as
Preceding detection electric current, obtains the detection resistance value；
Increased resistance value is obtained according to the initial resistivity value and the detection resistance value；
The degree of wear value of the tire is determined according to the increased resistance value.
10. a kind of tire, which is characterized in that the tire include mounting portion as described in any claim of the claims 1-6,
Test section and detection chip.
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| CN201910160399.2A CN109703296B (en) | 2019-03-04 | 2019-03-04 | Tire wear degree detection method and device and tire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910160399.2A CN109703296B (en) | 2019-03-04 | 2019-03-04 | Tire wear degree detection method and device and tire |
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| CN109703296A true CN109703296A (en) | 2019-05-03 |
| CN109703296B CN109703296B (en) | 2020-12-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677711A (en) * | 2020-12-28 | 2021-04-20 | 深圳巴士集团股份有限公司第五分公司 | Vehicle tire detection method and detection system |
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| CN109203869A (en) * | 2017-06-29 | 2019-01-15 | 英业达科技有限公司 | To detect the detection element of tire wear amount |
| CN209649961U (en) * | 2019-03-04 | 2019-11-19 | 知轮(杭州)科技有限公司 | Tire wear degree detection device |
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| JP2005028950A (en) * | 2003-07-09 | 2005-02-03 | Yokohama Rubber Co Ltd:The | Method and device for detecting tire abrasion and pneumatic tire |
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| CN112677711A (en) * | 2020-12-28 | 2021-04-20 | 深圳巴士集团股份有限公司第五分公司 | Vehicle tire detection method and detection system |
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|---|---|
| CN109703296B (en) | 2020-12-15 |
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