CN107505082B - Tire pressure calibration measuring method - Google Patents
Tire pressure calibration measuring method Download PDFInfo
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- CN107505082B CN107505082B CN201710779914.6A CN201710779914A CN107505082B CN 107505082 B CN107505082 B CN 107505082B CN 201710779914 A CN201710779914 A CN 201710779914A CN 107505082 B CN107505082 B CN 107505082B
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- tire
- tire pressure
- wear level
- load
- calibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L17/00—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
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- Measuring Fluid Pressure (AREA)
Abstract
The present invention provides a kind of tire pressure calibration measuring methods.It include: that the calibration retrieval table for including at least the various dimensions of tire pressure and signature analysis information is established under mode of learning；Real-time characteristic is obtained under monitoring pattern and analyzes information, determines the tire pressure of tire using normalization linear process in a manner of tabling look-up；Utilize Charles' law amendment and influence of the treatment temperature to tire pressure value.The present invention also provides a kind of tire pressures to demarcate measuring device.The tire pressure value of this method measurement is more accurate.
Description
Technical field
The present invention relates to automobile technical fields, are specifically related to tire pressure calibration measuring method and device.
Background technique
Through related experiment and verifying, automobile is for a long time in the non-compliant situation downward driving of tire pressure, the mill of tire
Undermining rate of decay is 2 to 3 times when air pressure complies with standard, and is the main arch-criminal of automobile flat tire, while being also to influence fuel oil to disappear
An important factor for consumption, comfortableness and security.Therefore, tire pressure monitoring is taken turns to traffic safety, reduction oil consumption and reduction is improved
Tire, which wears, blows out etc., to be had a very important significance.
The indirect type tire pressure monitoring technology used in the world at present, its working principle is that the ABS data based on four tires
Judged, when the air pressure of certain tire reduces, the rolling radius of the tire will become smaller, and cause other tires of its rotating ratio fast.
By comparing the revolving speed difference between tire, to achieve the purpose that monitor tire pressure, due to environment complexity, to prevent indirect type
The persistent ailment failed to report and reported by mistake also has and carries out the case of interference filtration treatment with reference to vehicle operation data, or driving scene, works as ginseng
Number is alerted when reaching setting threshold value.But indirect type has the following disadvantages: the tire pressure value that cannot show each tire.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of tire pressure calibration measuring method and device, use
In overcoming the shortcomings that cannot obtaining tire pressure in the prior art.
Specifically, the invention proposes embodiments in detail below:
The embodiment of the invention provides a kind of tire pressure calibration measuring methods, comprising:
The calibration retrieval table for including at least the various dimensions of tire pressure and signature analysis information is established under mode of learning；
Real-time characteristic is obtained under monitoring pattern and analyzes information, and wheel is determined using normalization linear process in a manner of tabling look-up
The tire pressure of tire；
Utilize Charles' law amendment and influence of the treatment temperature to tire pressure value.
As a further improvement of the above technical scheme, the signature analysis information includes: tire accumulated pulse number or wheel
Tire radius.
As a further improvement of the above technical scheme, the tire pressure is measured by high-precision air gauge.
As a further improvement of the above technical scheme, table is retrieved in the calibration further include: tyre load information；To table look-up
Mode tire is determined using normalization linear process tire pressure before further include:
The load of tire is determined using normalization linear process in a manner of tabling look-up.
As a further improvement of the above technical scheme, table is retrieved in the calibration further include: tire wear class information；With
The mode tabled look-up is determined using normalization linear process before the load of tire further include:
The wear level of tire is determined in a manner of tabling look-up.
As a further improvement of the above technical scheme, the tire wear grade is set as 3 grades, and new tire is I
Grade, mid-term abrasion are II grade, are III grade close to scrapping.
The embodiment of the invention also provides a kind of tire pressures to demarcate measuring device method, comprising:
Table module is built, for establishing under mode of learning the various dimensions for including at least tire pressure and signature analysis information
Calibration retrieval table；
First determining module analyzes information for obtaining real-time characteristic under monitoring pattern, is used and returned in a manner of tabling look-up
One change linear process determines the tire pressure of tire；
Module is revised, for utilizing Charles' law amendment and influence of the treatment temperature to tire pressure value.
As a further improvement of the above technical scheme, the signature analysis information includes: tire accumulated pulse number or wheel
Tire radius.
As a further improvement of the above technical scheme, the tire pressure is measured by high-precision air gauge.
As a further improvement of the above technical scheme, the tire pressure calibration measuring device further includes the second determining module,
Second determining module, for before the tire pressure that first determining module determines tire in a manner of tabling look-up
The load of tire is determined using normalization linear process.
As a further improvement of the above technical scheme, the tire pressure calibration measuring device further includes third determining module,
The third determining module, for before the load that second determining module determines tire in a manner of tabling look-up
Determine the wear level of tire.
As a further improvement of the above technical scheme, the tire wear grade is set as 3 grades, and new tire is I
Grade, mid-term abrasion are II grade, are III grade close to scrapping.
It at least has the following beneficial effects: and obtains compared with existing well-known technique using technical solution provided by the invention
The tire pressure value taken is very accurate, and is easy to get the data information of automobile load and auto tire wear, tyre temperature.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of flow diagram for tire pressure calibration measuring method that the embodiment of the present invention proposes.
Fig. 2 is the structural schematic diagram that a kind of tire pressure that the embodiment of the present invention proposes demarcates measuring device.
Main element symbol description:
101- builds table module；The first determining module of 102-；103- revises module；The second determining module of 104-；105- third
Determining module.
Specific embodiment
Hereinafter, the various embodiments of the disclosure will be described more fully.The disclosure can have various embodiments, and
It can adjust and change wherein.It should be understood, however, that: there is no disclosure protection scope is limited to specific reality disclosed herein
The intention of example is applied, but the disclosure should be interpreted as to all in the spirit and scope for covering the various embodiments for falling into the disclosure
Adjustment, equivalent and/or optinal plan.
Hereinafter, can the term " includes " used in the various embodiments of the disclosure or " may include " instruction disclosed in
Function, operation or the presence of element, and do not limit the increase of one or more functions, operation or element.In addition, such as existing
Used in the various embodiments of the disclosure, term " includes ", " having " and its cognate are meant only to indicate special characteristic, number
Word, step, operation, the combination of element, component or aforementioned item, and be understood not to exclude first one or more other
Feature, number, step, operation, element, component or aforementioned item combined presence or increase one or more features, number,
Step, operation, element, component or aforementioned item combination a possibility that.
The statement (" first ", " second " etc.) used in the various embodiments of the disclosure can be modified in various implementations
Various constituent element in example, but respective sets can not be limited into element.For example, the above statement is not intended to limit the suitable of the element
Sequence and/or importance.The above statement is only used for the purpose for differentiating an element and other elements.For example, the first user sets
Standby and second user equipment indicates different user devices, although the two is all user equipment.For example, not departing from each of the disclosure
In the case where the range of kind embodiment, first element is referred to alternatively as second element, and similarly, second element is also referred to as first
Element.
It should also be noted that if a constituent element ' attach ' to another constituent element by description, it can be by the first composition member
Part is directly connected to the second constituent element, and " connection " third can form between the first constituent element and the second constituent element
Element.On the contrary, when a constituent element " being directly connected to " is arrived another constituent element, it will be appreciated that in the first constituent element
And second third constituent element is not present between constituent element.
The term used in the various embodiments of the disclosure is used only for the purpose of describing specific embodiments and not anticipates
In the various embodiments of the limitation disclosure.Unless otherwise defined, otherwise all terms used herein (including technical term and
Scientific term) there is contain identical with the various normally understood meanings of embodiment one skilled in the art of the disclosure
Justice.The term (term such as limited in the dictionary generally used) be to be interpreted as have in the related technical field
The identical meaning of situational meaning and Utopian meaning or meaning too formal will be interpreted as having, unless this
It is clearly defined in disclosed various embodiments.
Embodiment 1
As shown in Figure 1, the embodiment of the present invention proposes a kind of tire pressure calibration measuring method, comprising:
S101, the calibration retrieval for including at least the various dimensions of tire pressure and signature analysis information is established under mode of learning
Table.
In the present embodiment, the tire pressure demarcated in retrieval table is measured by high-precision air gauge.In calibration retrieval table
Signature analysis information select tire pulse accumulation number, in other embodiments signature analysis information can be selected by tire umber of pulse
According to the tire radius derived as signature analysis information.
Calibration retrieval table is default mileage with the integral multiple of the minimum mileage measurement unit of automobile.Under monitoring pattern, acquisition
Tire pulse accumulation number in default mileage.Whether mode of learning, monitoring pattern or calibration process, it is necessary to establish
Under conditions of same measuring distance, otherwise, the basis not being compared to each other.
The wear level of tire may be configured as 3 grades, and new tire is I grade, and it is III close to scrapping that mid-term abrasion, which is II grade,
Grade.
Calibration retrieval table is based on establishing under certain temperature.
In order to keep the calibration of tire pressure more accurate, calibration retrieval table can also increase tyre load information and tire wear etc.
One or 2 dimensional parameters of grade information.
Here is the establishment process of a calibration retrieval table: assuming that driver weight 70KG, automobile uses same specification
Qualified tire, the air pressure of each tire is measured using high-precision air gauge, and is consistent, but under wear level calibration mode,
Each tire must be inflated in strict accordance with the recommendation tire pressure value of depot；In certain load, with one or more effective tire
The minimum mileage measurement unit of ABS pulse data automobile is unit of analysis, the multivariate data that vehicle is generated in the process of moving into
Row acquires and analysis, alone summation pulse data, if measuring the cumulative data obtained in mileage unit at one as a result, coaxial
The sum of the ABS pulse data of tire perhaps diagonal line tire be not it is approximately equal or during this period, pass through brake opening degree and become
Rate, throttle opening degree change rate, steering wheel angle, coaxial tire pulse change rate or coaxial tire relative speed variation, coaxial wheels
Tire ABS umber of pulse is the methods of approximately equal to determine whether be interfered, and if there is interference, then filters out this metering mileage unit
Interior summation pulse data packet needs to test N kilometers according to calibration, and the qualified tire pulse data obtained during this is tired out
Add, calculate average value as unit of after corrigenda amendment by data packet, then using tire pressure as variable, adjustment load is distributed (wear testing
When mode, do not adjust), keep the check weighing value of 4 tires approximate the same, repeats the above process, generate the tire pressure mark under specific load
Regular inspection rope table；It in the case where changing specific load, repeats the above process again, completes the foundation of tire pressure calibration retrieval table.
When table is retrieved in calibration, needs to adjust the Mass Distribution of automobile, guarantee 4 tire force equilibriums, i.e., each tire
The pressure of road pavement be all it is identical, just the load of 4 tires can be made approximately equal in this way.
Each automobile when leaving the factory, auto vendor can by relevant tire pressure demarcate retrieval table information be stored on automobile or
In independent tire pressure calibration measuring device.The tables of data of different automobile models is different.
S102, real-time characteristic analysis information is obtained under monitoring pattern, using normalization linear process in a manner of tabling look-up
Determine the tire pressure of tire.
In order to keep the calibration of tire pressure more accurate, calibration retrieval table can also be on the basis of the load parameter dimension of tire
Increase this parameter dimensions of the wear level of tire.Before determining tire pressure, it can first pass through to table look-up and retrieve determining tire
Wear level determines that the wear level of tire continues through the load for determining tire of tabling look-up later；Finally determine the tire pressure of tire.
Determine that the tire pressure of tire specifically includes using normalization linear process in a manner of tabling look-up:
Determine that tire pressure value is located in corresponding relation data table within the scope of that 2 tire pressure smallest intervals.
Tire pulse accumulation number in mileage is preset according to the corresponding umber of pulse of two, tire pressure section endpoint and current vehicle
Corresponding tire pressure value is calculated using normalization linear process.
Be illustrated below with reference to specific tables of data: three tables preset mileage to be pre-stored in study calibration process below
Lower different tire pressure, different loads, different kinds of tyre wear level situation tire pulse accumulation number tables of data.
Table is retrieved in the corresponding calibration of I grade of 1 wear level of table
Table is retrieved in the corresponding calibration of II grade of 2 wear level of table
Table is retrieved in the corresponding calibration of III grade of 3 wear level of table
" P/P1, P2 " refers to the tire pressure value that depot is recommended in above-mentioned table, if the recommendation of depot's antero posterior axis tire is the same,
It is indicated with P, if the recommendation of depot's antero posterior axis tire is different, is indicated with P1, P2；" P-3 " is a specific symbol,
Indicate that a certain specific atmospheric pressure value, remaining label are similar.
The wear level for determining tire first, can be used the wear level that the mode tabled look-up determines tire.
When determining the wear level of tire, if tire pressure value is consistent with the recommendation tire pressure value P of depot in real time (including may
Antero posterior axis tire pressure is worth different situation), and the load of tire is also protected with the wear testing load T in calibration retrieval table
It holds consistent.Assuming that the real-time tire pressure value of the antero posterior axis tire of automobile is equally P, the load of tire is T, obtains three wear levels
Under corresponding tire pulse accumulation number be respectively K1, K2, K3.It finds out and tire pulse accumulation number immediate under monitoring pattern.It is false
It is immediate for K to be located at the tire pulse accumulation number N obtained under monitoring pattern2, then by umber of pulse K2II grade of corresponding wear level
Wear level as current vehicle tire.
It is the load of determining tire with that after determining the wear level of tire.
When determining the load of tire, wear level selects the wear level having determined by lookup table mode, the tire of tire
Pressure selects real-time tire pressure, and the real-time tire pressure is the tire pressure value that automobile is filled in inflation.Assuming that returning finally by tabling look-up to use
One change linear process determines that the load of tire is T2.
Determine tire wear level be II grade and tire load be T2 after be assured that the tire pressure of tire.
Under conditions of the load of tire is T2 and the wear level of tire is II grade, it is assumed that obtained under monitoring pattern current
The tire pulse accumulation number N that vehicle is preset in mileage is located at section C2- 1 and C2Between, it can determine that the tire pressure of tire is bound to position
Between P-1 and P, by P-1 respective pulses number C2- 1 and P respective pulses number C2Progress linear normalization processing calculates corresponding
Tire pressure value.Such as: it be the corresponding umber of pulse of 2.8bar is 1200 that corresponding umber of pulse, which is 1000, P, when P-1 is 2.6bar, works as wheel
It is 2.6+ (2.8-2.6) * (1075- by the pressure that linear normalization is handled when tire pulse accumulation number N is 1075
1000)/(1200-1000)=2.675bar, the value are exactly using linear normalization processing to determine wheel in a manner of tabling look-up
The tire pressure of tire.
The wear level of above-mentioned determining tire, load and tire pressure are carried out under the conditions of identical temperature.
S103, the influence using Charles' law amendment and treatment temperature to tire pressure value.
It, can be according to Charles' law, the gas of certain mass, when its volume since the volume change of automobile tire is limited in scope
One timing, its pressure are directly proportional to thermodynamic temperature.Pressure P=P at a certain temperature0(1+t/273), wherein P0It is at 0 DEG C
When pressure, t is Celsius temperature.
If user needs the static tire pressure (tire temperature is consistent with environment temperature) of display of tyre, there is no the feelings of gas leakage
Under condition, it can use Charles' law and calculate acquisition.
Equally pass through the simplified formula of Charles' law: P1/T1=P2/T2, the real time temperature of tire can be gone out with approximate calculation.
Embodiment 2
As shown in Fig. 2, the embodiment of the invention provides a kind of tire pressures to demarcate measuring device, comprising: table module 101 is built, the
One determining module 102 revises module 103.
Table module 101 is built, for establishing the multidimensional for including at least tire pressure and signature analysis information under mode of learning
Table is retrieved in the calibration of degree.
First determining module 102 is analyzed information for obtaining real-time characteristic under monitoring pattern, is used in a manner of tabling look-up
Normalization linear process determines the tire pressure of tire.
Module 103 is revised, for utilizing Charles' law amendment and influence of the treatment temperature to tire pressure value.
The tire pressure calibration measuring device further includes the second determining module 104.
Second determining module 104, for being adopted in a manner of tabling look-up before the tire pressure that the first determining module 102 determines tire
The load of tire is determined with normalization linear process.
The tire pressure calibration measuring device further includes third determining module 105.
Third determining module 105, for the second determining module 104 determine tire load before in a manner of tabling look-up it is true
The wear level of fixed wheel tire.
It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or
Process is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in equipment in implement scene can be described according to implement scene into
Row is distributed in the equipment of implement scene, can also be carried out corresponding change and be set positioned at the one or more different from this implement scene
In standby.The module of above-mentioned implement scene can be merged into a module, can also be further split into multiple submodule.
Aforementioned present invention serial number is for illustration only, does not represent the superiority and inferiority of implement scene.Disclosed above is only the present invention
Several specific implementation scenes, still, the present invention is not limited to this, and the changes that any person skilled in the art can think of is all
Protection scope of the present invention should be fallen into.
Claims (3)
1. a kind of tire pressure calibration measuring method characterized by comprising
Based on certain metering mileage unit under mode of learning, establishes and include at least tire pressure, tyre load information, tire
Table is retrieved in the calibration of the various dimensions of wear level information and signature analysis information, and the signature analysis information includes: that tire is accumulative
Umber of pulse or tire radius；
Real-time characteristic is obtained under monitoring pattern and analyzes information, determines the wear level of tire, in a manner of tabling look-up with what is tabled look-up
Mode determines the load of tire using normalization linear process, determines tire using normalization linear process in a manner of tabling look-up
Tire pressure；
Before determining tire pressure, first passes through to table look-up and retrieve the wear level of determining tire, after the wear level for determining tire
Continue through the load for determining tire of tabling look-up；Finally determine the tire pressure of tire；It is specific as follows:
When determining the wear level of tire, the recommendation tire pressure value of real-time tire pressure value and depot is needed to be consistent, and tire
Load is also consistent with the wear testing load in calibration retrieval table；Obtain corresponding tire arteries and veins under different wear levels
Cumulative number is rushed, finds out wear level corresponding with tire pulse accumulation number immediate under monitoring pattern as current vehicle tire
Wear level；
When determining the load of tire, wear level selects the wear level having determined by lookup table mode, the tire pressure choosing of tire
Select real-time tire pressure；
Determine the tire pressure that tire is assured that after the wear level of tire and the load of tire；Determine tire pressure value be located at pair
It answers within the scope of 2 tire pressure smallest intervals of that in relation database table；According to the corresponding umber of pulse of two, tire pressure section endpoint and work as
Vehicle in front presets tire pulse accumulation number in mileage and normalization linear process is used to calculate corresponding tire pressure value；
Utilize Charles' law amendment and influence of the treatment temperature to tire pressure value.
2. tire pressure calibration measuring method according to claim 1, which is characterized in that the tire pressure passes through high-precision gas
Press table measurement.
3. tire pressure calibration measuring method according to claim 1, which is characterized in that the tire wear grade is set as 3
A grade, new tire are I grade, and it is III grade close to scrapping that mid-term abrasion, which is II grade,.
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| CN201710779914.6A CN107505082B (en) | 2017-09-01 | 2017-09-01 | Tire pressure calibration measuring method |
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| CN201710779914.6A CN107505082B (en) | 2017-09-01 | 2017-09-01 | Tire pressure calibration measuring method |
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| CN107505082B true CN107505082B (en) | 2019-04-02 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7265912B2 (en) | 2019-03-29 | 2023-04-27 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Calculation model generation system, wear amount estimation system, and calculation model generation method |
| CN114734762B (en) * | 2022-04-20 | 2023-06-27 | 岚图汽车科技有限公司 | Tire pressure monitoring method, controller, system and electronic equipment |
| CN114877981B (en) * | 2022-04-26 | 2023-10-31 | 东风柳州汽车有限公司 | Method and device for measuring tire load |
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