CN105760679B - Abnormal tyre degree of wear determination methods based on road test data - Google Patents
Abnormal tyre degree of wear determination methods based on road test data Download PDFInfo
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- CN105760679B CN105760679B CN201610105533.5A CN201610105533A CN105760679B CN 105760679 B CN105760679 B CN 105760679B CN 201610105533 A CN201610105533 A CN 201610105533A CN 105760679 B CN105760679 B CN 105760679B
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Z—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS, NOT OTHERWISE PROVIDED FOR
- G16Z99/00—Subject matter not provided for in other main groups of this subclass
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Abstract
The present invention provides a kind of abnormal tyre degree of wear determination methods based on road test data, being worn away with toe shape for decorative pattern ditch depth and pattern block is measured respectively, calculate tire eccentric wear and take the average value of the maximum with the abrasion of toe shape, then according to tire eccentric wear and the size worn away with toe shape of tire tread block, different mill degree value occurs with settingIt is compared, judges the grade of the abnormal tyre degree of wear.The present invention is worn away by tire eccentric wear and with toe shape to judge the ability of the different mill of tire resistance, and precision is higher, convenient and swift；It is directed into by calculating process and formula in EXCLE and forms template, only need to insert tire measurement data during processing data, it is resisted the intensity grade of different mill and can automatically generated.
Description
Technical field
The present invention relates to tyre technology, and in particular to a kind of abnormal tyre degree of wear based on road test data judges
Method.
Background technology
With requirement more and more higher of the market to tire, the development efficiency of new product is also improving, while evaluates tire
Can mode it is also diversified, wherein tire road test be before launch and market condition closest to and maximally effective evaluation side
Formula, so effective processing of tire path test result is also most important.There is not the road test processing method of detail specification also at present, and
Each tire producer or tire engineer have a respective processing method, but not system and comprehensively.Existing method is simply to tire
Subjective and simple DATA REASONING is judged that not systematic progress inductive statistics simultaneously carries out grade judgement, so to existing
The different mill result of row method is more inaccurate objective to be judged.
The content of the invention
In order to accurately evaluate the ability that tire resists different mill, the present invention provides a kind of abnormal tyre based on road test data
Degree of wear determination methods.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of abnormal tyre degree of wear determination methods based on road test data, comprise the following steps：
1) along tire circumferentially divide equally measure n tyre surface position, choose have abrasion mark groove and to tire radial direction according to
The ditch depth of m groove of secondary measurement, wherein n >=3, m >=3, is denoted as respectively：
hs1-1, hs1-2... hs1-m；
hs2-1, hs2-2... hs2-m；
…
hsn-1, hsn-2... hsn-m；
2) tire eccentric wear is calculated：
When groove quantity m is equal to 3, eccentric wear
C=AVERAGE (hs1-1,hs1-3；hs2-1,hs2-3；……；hsn-1,hsn-3)-AVERAGE(hs1-2,
hs2-2,……,hsn-2)
When groove quantity m is more than 3, eccentric wear
C=AVERAGE (hs1-1,hs1-m；hs2-1,hs2-m；……；hsn-1,hsn-m)-
AVERAGE(hs1-2,…hs1-(m-1)；hs2-2,…hs2-(m-1)；……；hsn-2,…hsn-(m-1))；
3) tire is calculated to wear away with toe shape：
In being worn away with toe shape for measurement groove depth identical position measurement pattern block, and radially measured successively along tire
K pattern block, each pattern block radially take j measurement point, wherein k >=m+1 along tire, j >=3, are denoted as respectively：
D1-1-1, D1-1-2... D1-1-j；D1-2-1, D1-2-2... D1-2-j；…D1-k-1, D1-k-2... D1-k-j；
D2-1-1, D2-1-2... D2-1-j；D2-2-1, D2-2-2... D2-2-j；…D2-k-1, D2-k-2... D2-k-j；
…
Dn-1-1, Dn-1-2... Dn-1-j；Dn-2-1, Dn-2-2... Dn-2-j；…Dn-k-1, Dn-k-2... Dn-k-j；
4) maximum for taking the pattern block of j measurement point to be worn away with toe shape, same column pattern block is worn away most with toe shape
Big value carries out average computation, and obtain each row pattern block wears away size D with toe shape1-max、D2-max、……、Dk-max, it is denoted as respectively：
5) each row pattern block is worn away with toe shape and carries out average computation, obtain tire tread block wears away D=with toe shape
AVERAGE(D1-max,D2-max,……,Dk-max)；
6) size with toe shape abrasion D of tire eccentric wear C and tire tread block is judged, wherein tire eccentric wear C takes absolutely
To value, set the value that different mill degree occurs as X, as tire eccentric wear C and when wearing away D with toe shape and being located at 0≤X≤1, to be no different
Mill；It is located at 1 as tire eccentric wear C and with toe shape abrasion D<During X≤2, for slight different mill；Ground as tire eccentric wear C and with toe shape
Consume D and be located at 2<During X≤4, for slight different mill；It is located at X as tire eccentric wear C and with toe shape abrasion D>When 4, for serious different mill.
Preferably, in step 1), the ditch depth of groove is measured using depth gauge rule, during measurement the cantilever of the depth gauge rule ride over by
Survey the high point position of groove both sides pattern block.
Preferably, in step 2), if eccentric wear C>0, then among decorative pattern mill, if eccentric wear C<0, then decorative pattern mill shoulder.
Preferably, in step 3), pattern block is measured with the abrasion of toe shape using depth gauge rule, the cantilever of depth gauge rule during measurement
Ride over the high point position of front and rear pattern block.
Preferably, in step 3), pattern block radially takes 3 measurement points along tire, respectively the flex point of pattern block both sides and
The middle part of pattern block.
From above technical scheme, the present invention is worn away by tire eccentric wear and with toe shape to judge that tire resists different mill
Ability, precision is higher, convenient and swift；It is directed into by calculating process and formula in EXCLE and forms template, during processing data only
Need to insert tire measurement data, it is resisted the intensity grade of different mill and can automatically generated.
Brief description of the drawings
Fig. 1 is the distribution situation of pattern block and groove in the preferred embodiment of the present invention；
Fig. 2 is the schematic diagram that groove ditch depth is measured in the preferred embodiment of the present invention；
Fig. 3 is the schematic diagram that measurement pattern block is worn away with toe shape in the preferred embodiment of the present invention；
Fig. 4 is the location drawing of the pattern block along tire radially 3 measurement points in the preferred embodiment of the present invention.
Embodiment
A kind of preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, tire of the present invention is applied to driving position pattern type, there is crisscross groove, and flower
Block-shaped line is rectangle or polygon.
Measured firstly the need of to decorative pattern ditch depth, circumferentially divide equally along tire and measure 3 tyre surface positions, selection there are abrasion to mark
The groove of note and the ditch depth for radially measuring 4 grooves successively to tire, are denoted as respectively：
hs1-1, hs1-2, hs1-3, hs1-4；
hs2-1, hs2-2, hs2-3, hs2-4；
hs3-1, hs3-2, hs3-3, hs3-4；
Then tire eccentric wear C is calculated：
When groove quantity m is equal to 3, eccentric wear
C=AVERAGE (hs1-1,hs1-3；hs2-1,hs2-3；……；hsn-1,hsn-3)-AVERAGE(hs1-2,
hs2-2,……,hsn-2)
When groove quantity m is more than 3, eccentric wear
C=AVERAGE (hs1-1,hs1-m；hs2-1,hs2-m；……；hsn-1,hsn-m)-
AVERAGE(hs1-2,…hs1-(m-1)；hs2-2,…hs2-(m-1)；……；hsn-2,…hsn-(m-1))。
Groove quantity is 4 in the present embodiment, therefore its eccentric wear
C=AVERAGE (hs1-1,hs1-4；hs2-1,hs2-4；hs3-1,hs3-4)-AVERAGE(hs1-2,hs1-3；hs2-2,
hs2-3；hs3-2,hs3-3))
Due to block-type tread, pattern block elder generation ground end is contacted with ground and is deformed in the rolling, and this deformation is with pattern block
Rolling be gradually transferred to the liftoff end of pattern block, the strain energy of distortion of pattern block discharges from liftoff end when liftoff, so liftoff
The pattern block part at end and ground produce Relative sliding thus produce abrasion, so as to phenomenon low after height before producing, i.e. pattern block
Inordinate wear.Therefore need to use depth gauge rule in decorative pattern ditch depth measurement, the cantilever of the depth gauge rule rides over tested decorative pattern during measurement
The high point position of ditch both sides pattern block, reference picture 2.
In being worn away with toe shape for measurement 3 position measurement pattern blocks of groove depth identical, and along tire radial direction successively
6 pattern blocks are measured, each pattern block radially takes the flex point and pattern block of 3 measurement points, respectively pattern block both sides along tire
Middle part, reference picture 4.The result of measurement is denoted as respectively：
D1-1-1, D1-1-2, D1-1-3；D1-2-1, D1-2-2, D1-2-3；D1-3-1, D1-3-2, D1-3-3；
D1-4-1, D1-4-2, D1-4-3；D1-5-1, D1-5-2, D1-5-3；D1-6-1, D1-6-2, D1-6-3；
D2-1-1, D2-1-2, D2-1-3；D2-2-1, D2-2-2, D2-2-3；D2-3-1, D2-3-2, D2-3-3；
D2-4-1, D2-4-2, D2-4-3；D2-5-1, D2-5-2, D2-5-3；D2-6-1, D2-6-2, D2-6-3；
D3-1-1, D3-1-2, D3-1-3；D3-2-1, D3-2-2, D3-2-3；D3-3-1, D3-3-2, D3-3-3；
D3-4-1, D3-4-2, D3-4-3；D3-5-1, D3-5-2, D3-5-3；D3-6-1, D3-6-2, D3-6-3；
The maximum for taking the pattern block of 3 measurement points to be worn away with toe shape, by the maximum with the abrasion of toe shape of same column pattern block
Value carries out average computation, and obtain each row pattern block wears away size D with toe shape1-max、D2-max、D3-max、D4-max、D5-max、D6-max,
It is denoted as respectively：
AVERAGE[MAX(D1-1-1,D1-1-2,D1-1-3),MAX(D2-1-1,D2-1-2,D2-1-3),MAX(D3-1-1,D3-1-2,
D3-1-3)]；
AVERAGE[MAX(D1-2-1,D1-2-2,D1-2-3),MAX(D2-2-1,D2-2-2,D2-2-3),MAX(D3-2-1,D3-2-2,
D3-2-3)]；
AVERAGE[MAX(D1-3-1,D1-3-2,D1-3-3),MAX(D2-3-1,D2-3-2,D2-3-3),MAX(D3-3-1,D3-3-2,
D3-3-3)]；
AVERAGE[MAX(D1-4-1,D1-4-2,D1-4-3),MAX(D2-4-1,D2-4-2,D2-4-3),MAX(D3-4-1,D3-4-2,
D3-4-3)]；
AVERAGE[MAX(D1-5-1,D1-5-2,D1-5-3),MAX(D2-5-1,D2-5-2,D2-5-3),MAX(D3-5-1,D3-5-2,
D3-5-3)]；
AVERAGE[MAX(D1-6-1,D1-6-2,D1-6-3),MAX(D2-6-1,D2-6-2,D2-6-3),MAX(D3-6-1,D3-6-2,
D3-6-3)]；
Above-mentioned each row pattern block is worn away with toe shape and carries out average computation, obtains being worn away with toe shape for tire tread block
D=AVERAGE (D1-max,D2-max,D3-max,D4-max,D5-max,D6-max)；
Pattern block is measured with the abrasion of toe shape using depth gauge rule, and the cantilever of the depth gauge rule rides over front and rear pattern block during measurement
High point position, reference picture 3.
Inordinate wear grade judges：
Because the data per tires different can be judged to carry out comparative evaluation, it is necessary to carry out grade to each data,
Different mill degree is divided into according to eccentric wear and with toe shape abrasion data：It is no different mill, slight different mill, medium different mill and serious different four, mill etc.
Level, then judge the grade per tires, and the tire scheme of same levels is counted, insert in form, according to hair
Raw bar number evaluation tire resists the ability of different mill, and evaluation method is as follows：
Judge the size with toe shape abrasion D of tire eccentric wear C and tire tread block, wherein tire eccentric wear C takes definitely
Value, set the value that different mill degree occurs as X, as tire eccentric wear C and when wearing away D with toe shape and being located at 0≤X≤1, is ground to be no different；
It is located at 1 as tire eccentric wear C and with toe shape abrasion D<During X≤2, for slight different mill；D is worn away as tire eccentric wear C and with toe shape
Positioned at 2<During X≤4, for slight different mill；It is located at X as tire eccentric wear C and with toe shape abrasion D>When 4, for serious different mill.
Judge every tire " among mill " and " mill shoulder "：If C>0, then among decorative pattern mill, such as C<0, then decorative pattern mill shoulder , Qu ∣ C
Section where ∣ judges it according to following table simultaneously counts；Judge being worn away with toe shape for every tire：According to following table judge per tires with
Section and counting where toe shape abrasion D
X is the value that different mill degree occurs.
Judge explanation：Compare " serious different mill " according to the order of severity successively, " medium different mill ", " slight different mill ", " be no different
The ratio that mill " occurs, to compare the degree of the difference come at first as judgment basis, this individual character of proportion height then this scheme
Can be poor.
Case explanation：
Decision method：Option A and option b distinguish 10 tires, and carrying out processing after DATA REASONING inserts in upper table.
* intermediate contrast is ground：The ratio that serious different mill occurs for option A is 1/10, and the ratio of medium different mill is 1/10, slight different
The ratio of mill is 1/10, and it is 0/10 to be no different mill.
The ratio that serious different mill occurs for option b is 1/10, and the ratio that medium different mill occurs is 2/10, the ratio of slight different mill
For 0/10, it is 0/10 to be no different mill.
Wherein serious different mill ratio is identical, and the proportion scheme B proportions of the medium different mill of mill are higher, then option b resistance " mill
The ability of centre ".
* shoulder contrast is ground：" mill shoulder " project is similarly contrasted, seriously different mill ratio is 3/10 to option A, the serious different mill ratio of option b
Example is 2/10, and the ratio that serious different mill occurs for option A is higher, then the ability of option A resistance " mill shoulder ".
* H＆T is contrasted：Identical with above control methods, the ratio that serious different mill occurs for option A is 3/10, medium different mill
Ratio is 5/10, and the ratio of slight different mill is 2/10, and it is 0/10 to be no different mill.
The ratio that serious different mill occurs for option b is 5/10, and the ratio that medium different mill occurs is 2/10, the ratio of slight different mill
For 3/10, it is 0/10 to be no different mill, and the ratio that serious different mill occurs for option b is higher, then the ability of option b resistance " H＆T ".
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (5)
1. a kind of abnormal tyre degree of wear determination methods based on road test data, it is characterised in that comprise the following steps：
1) circumferentially divide equally along tire and measure n tyre surface position, choose the groove for there are abrasion to mark and radially surveyed successively to tire
The ditch depth of m groove is measured, wherein n >=3, m >=3, is denoted as respectively：
hs1-1, hs1-2... hs1-m；
hs2-1, hs2-2... hs2-m；
…
hsn-1, hsn-2... hsn-m；
2) tire eccentric wear is calculated：
When groove quantity m is equal to 3, eccentric wear
C=AVERAGE (hs1-1,hs1-3；hs2-1,hs2-3；……；hsn-1,hsn-3)-AVERAGE(hs1-2,hs2-2,……,
hsn-2)
When groove quantity m is more than 3, eccentric wear
C=AVERAGE (hs1-1,hs1-m；hs2-1,hs2-m；……；hsn-1,hsn-m)-
AVERAGE(hs1-2,…hs1-(m-1)；hs2-2,…hs2-(m-1)；……；hsn-2,…hsn-(m-1))；
3) tire is calculated to wear away with toe shape：
In being worn away with toe shape for measurement groove depth identical position measurement pattern block, and k are radially measured successively along tire
Pattern block, each pattern block radially take j measurement point, wherein k >=m+1 along tire, j >=3, are denoted as respectively：
D1-1-1, D1-1-2... D1-1-j；D1-2-1, D1-2-2... D1-2-j；…D1-k-1, D1-k-2... D1-k-j；
D2-1-1, D2-1-2... D2-1-j；D2-2-1, D2-2-2... D2-2-j；…D2-k-1, D2-k-2... D2-k-j；
…
Dn-1-1, Dn-1-2... Dn-1-j；Dn-2-1, Dn-2-2... Dn-2-j；…Dn-k-1, Dn-k-2... Dn-k-j；
4) maximum for taking the pattern block of j measurement point to be worn away with toe shape, by the maximum with the abrasion of toe shape of same column pattern block
Average computation is carried out, obtain each row pattern block wears away size D with toe shape1-max、D2-max、……、Dk-max, it is denoted as respectively：
5) each row pattern block is worn away with toe shape and carries out average computation, obtain tire tread block wears away D=with toe shape
AVERAGE(D1-max,D2-max,……,Dk-max)；
6) order of magnitude that tire eccentric wear and tire tread block are worn away with toe shape is judged | C | and | D |, determine the different mill journey of tire
Degree, when 0≤| C | or | D | when≤1, mill is no different depending on tire；As 1 ＜ | C | or | D | when≤2, depending on the slight different mill of tire；As 2 ＜ | C |
Or | D | when≤4, depending on the different mill of tire moderate；As | C | or | D | during ＞ 4, depending on the serious different mill of tire.
2. abnormal tyre degree of wear determination methods according to claim 1, it is characterised in that in step 1), groove
Ditch depth measured using depth gauge rule, the cantilever of the depth gauge rule rides over the high point position of tested groove both sides pattern block during measurement.
3. abnormal tyre degree of wear determination methods according to claim 1, it is characterised in that in step 2), if partially
Wear away C ＞ 0, then among decorative pattern mill, if eccentric wear C ＜ 0, decorative pattern mill shoulder.
4. abnormal tyre degree of wear determination methods according to claim 1, it is characterised in that in step 3), pattern block
Measured with the abrasion of toe shape using depth gauge rule, the cantilever of the depth gauge rule rides over the high point position of front and rear pattern block during measurement.
5. abnormal tyre degree of wear determination methods according to claim 1, it is characterised in that in step 3), pattern block
Radially 3 measurement points, the respectively middle part of the flex point of pattern block both sides and pattern block are taken along tire.
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Families Citing this family (3)
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| CN108437706A (en) * | 2018-01-26 | 2018-08-24 | 安徽佳通乘用子午线轮胎有限公司 | It is a kind of based on road test groove measurement data to the evaluation method of tire eccentric wear degree |
| CN108398359B (en) * | 2018-02-05 | 2020-09-22 | 三峡大学 | Method for judging tire strain degree and evaluating safety |
| CN109918792B (en) * | 2019-03-09 | 2022-05-17 | 闽南理工学院 | Computer-based dynamic simulation system and method for tire unbalance amount |
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| US6034596A (en) * | 1998-09-15 | 2000-03-07 | Smith; Julian | Motor vehicle tire pressure and temperature sensing system |
| CN1627098A (en) * | 2003-12-09 | 2005-06-15 | 米其林研究和技术股份有限公司 | Doppler radar for detecting tire anomalies |
| CN201320931Y (en) * | 2008-12-04 | 2009-10-07 | 中山市伟力通电子技术有限公司 | Intelligent monitoring system for the safety of automobile tire |
| CN101620031A (en) * | 2008-07-03 | 2010-01-06 | 施耐宝仪器股份有限公司 | Apparatus for determining the condition of a tire tread of a vehicle wheel |
| CN202541224U (en) * | 2012-03-08 | 2012-11-21 | 郑州宇通客车股份有限公司 | Warning device for abnormal wear of tires and motor vehicle with warning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6532811B2 (en) * | 2001-01-26 | 2003-03-18 | Bridgestone/Firestone North American Tire, Llc | Method of wear testing a tire |
| US20100139383A1 (en) * | 2006-11-17 | 2010-06-10 | Treadcheck Limited | Apparatus and method for monitoring tyre wear |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6034596A (en) * | 1998-09-15 | 2000-03-07 | Smith; Julian | Motor vehicle tire pressure and temperature sensing system |
| CN1627098A (en) * | 2003-12-09 | 2005-06-15 | 米其林研究和技术股份有限公司 | Doppler radar for detecting tire anomalies |
| CN101620031A (en) * | 2008-07-03 | 2010-01-06 | 施耐宝仪器股份有限公司 | Apparatus for determining the condition of a tire tread of a vehicle wheel |
| CN201320931Y (en) * | 2008-12-04 | 2009-10-07 | 中山市伟力通电子技术有限公司 | Intelligent monitoring system for the safety of automobile tire |
| CN202541224U (en) * | 2012-03-08 | 2012-11-21 | 郑州宇通客车股份有限公司 | Warning device for abnormal wear of tires and motor vehicle with warning device |
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