KR20110056047A - Calculation method of tire wear characteristics - Google Patents

Calculation method of tire wear characteristics Download PDF

Info

Publication number
KR20110056047A
KR20110056047A KR1020090112725A KR20090112725A KR20110056047A KR 20110056047 A KR20110056047 A KR 20110056047A KR 1020090112725 A KR1020090112725 A KR 1020090112725A KR 20090112725 A KR20090112725 A KR 20090112725A KR 20110056047 A KR20110056047 A KR 20110056047A
Authority
KR
South Korea
Prior art keywords
tire
ground
calculating
calculated
information
Prior art date
Application number
KR1020090112725A
Other languages
Korean (ko)
Other versions
KR101146087B1 (en
Inventor
박인정
백한승
Original Assignee
한국타이어 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국타이어 주식회사 filed Critical 한국타이어 주식회사
Priority to KR1020090112725A priority Critical patent/KR101146087B1/en
Priority to CN200910266000.5A priority patent/CN102073781B/en
Publication of KR20110056047A publication Critical patent/KR20110056047A/en
Application granted granted Critical
Publication of KR101146087B1 publication Critical patent/KR101146087B1/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
    • B60C25/002—Inspecting tyres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/56—Investigating resistance to wear or abrasion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof
    • B29L2030/002—Treads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2304/00—Optimising design; Manufacturing; Testing
    • B60Y2304/09—Testing or calibrating during manufacturing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Tires In General (AREA)

Abstract

PURPOSE: A method for estimating the wear of a tire based on frictional energy is provided to improve the accuracy of wear estimation by calculating frictional energy using dynamic elements of a tire. CONSTITUTION: A method for estimating the wear of a tire is as follows. A tire contacting the ground is two-dimensionally modeled and a tire not contacting the ground is one-dimensionally modeled(S110). Contact pressure distributions in the circumferential and widthwise direction of the tire are obtained based on the two-dimensional modeling information(S120). An asymmetric component of the contact pressure distribution is calculated by referring to the cornering force, torque, and belt transformation information of the tire(S130). The widthwise distribution and slip amount of a sticking area and a slip area on the contact surface between the tire and the ground are calculated based on the asymmetric component(S140). Frictional energy per unit time is calculated by reflecting a calculated frictional force to the slip amount(S150).

Description

타이어 마모 산출 방법{CALCULATION METHOD OF TIRE WEAR CHARACTERISTICS}Tire wear calculation method {CALCULATION METHOD OF TIRE WEAR CHARACTERISTICS}

본 발명은 마모와 직접 관련이 있는 마찰에너지를 계산하는 방식을 효율적으로 적용하여 마모 산출의 정확성을 높이기 위한 타이어 마모 산출 방법에 관한 것이다.The present invention relates to a tire wear calculation method for increasing the accuracy of the wear calculation by applying a method of calculating friction energy directly related to wear.

타이어 마모와 관련하여 종래에는 타이어 역학 모델을 기반으로 전후력과 유효 슬립각을 반영하여 횡력과 SAT의 실험 데이터를 fitting 함으로써 역학적 계수값을 도출하고, 도출된 계수값을 적용한 타이어 모델을 이용하여 차량 동역학 해석에 적용하는 코너링 특성에 대한 기술이 발표되었다. 이러한 종래의 기술은 타이어 코너링(Cornering) 특성을 도출하기 위한 실험적, 역학적 접근으로 지속적인 발전을 보여 왔으나, 마모 특성을 산출하는데 있어 근래에는 유한요소법을 이용한 컴퓨터 계산으로 접근이 이루어질 뿐, 역학적 모델 및 산출 방법은 나타나지 않고 있다.In relation to tire wear, conventionally, the mechanical coefficients are derived by fitting the experimental data of the lateral force and the SAT, reflecting the front and rear forces and the effective slip angles, based on the tire dynamics model, and using the tire model to which the derived coefficient values are applied. A description of the cornering characteristics applied to dynamic analysis has been published. This conventional technique has shown continuous development as an experimental and mechanical approach for deriving tire cornering characteristics, but in recent years, the finite element method has been approached by computer calculations to calculate wear characteristics. There is no way.

따라서, 통상적으로, 마모 특성을 산출하는 방법으로는 마모와 직접 관련이 있는 마찰에너지를 계산하는 방법이 널리 이용되고 있다. 반면, 유한요소법을 이용한 컴퓨터 계산은 복잡한 트레드 블록 형상을 구현하여 계산할 수 있는 장점이 있 으나 대용량 컴퓨터를 장시간 이용해야 하는 단점이 있으며, 초기설계 단계에서 Mold Dimension 결정을 위해서는 역학적 모델을 이용하는 것이 필요한 실정이다.Therefore, as a method of calculating wear characteristics, a method of calculating friction energy directly related to wear is widely used. On the other hand, the computer calculation using the finite element method has the advantage that it can be calculated by implementing complex tread block shapes, but it has the disadvantage of using a large computer for a long time, and it is necessary to use a mechanical model to determine the mold dimensions in the initial design stage. to be.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여, 2차원 타이어 역학 모델을 기반으로 타이어의 역학적 요소와 연계하여 횡력(Cornering Force), Slip 영역 및 Slip량 등을 산출하여 마찰 에너지를 계산하는 타이어 마모 산출 방법을 제공하는 것을 목적으로 한다.The present invention to solve the conventional problems as described above, the tire calculates the friction energy by calculating the lateral force (Cornering Force), slip area and slip amount in conjunction with the mechanical elements of the tire based on the two-dimensional tire dynamics model It is an object to provide a wear calculation method.

상기한 바와 같은 본 발명의 목적을 달성하고, 후술하는 본 발명의 특징적인 기능을 수행하기 위한, 본 발명의 특징적 구성은 다음과 같다.In order to achieve the object of the present invention as described above, and to perform the characteristic functions of the present invention described below, the characteristic configuration of the present invention is as follows.

본 발명의 일 실시예에 따르면, (a) 지면과 접촉하는 타이어에 대하여 2차원 모델화하고, 비접지하는 타이어에 대하여 단순화된 1차원 모델화하는 단계, (b) 상기 2차원 모델화 정보를 토대로 타이어 전후 방향의 접지압 분포와 폭방향의 접지압 분포 정보를 획득하는 단계, (c) 상기 타이어 하중 작용시에 발생하는 타이어의 코너링 힘, 토크 및 벨트 변형 정보를 반영하여 상기 접지압 분포에 대하여 비대칭 성분을 산출하는 단계, (d) 상기 비대칭 성분을 토대로 타이어와 지면과의 접지면에서 발생하는 응착 영역과 미끄럼 영역에 대한 폭방향 분포 및 미끄럼량을 산출하는 단계, 및 (e) 산출된 상기 미끄럼량 정보에 계산된 마찰력을 반영하여 단위 시간당 마찰에너지를 산출하는 단계를 포함하는 타이어 마모 산출 방법이 제공된다.According to an embodiment of the present invention, (a) two-dimensional modeling for the tire in contact with the ground, simplified one-dimensional modeling for the non-grounded tire, (b) before and after the tire based on the two-dimensional modeling information Acquiring ground pressure distribution in the lateral direction and ground pressure distribution information in the width direction; (c) calculating an asymmetric component with respect to the ground pressure distribution by reflecting tire cornering force, torque, and belt deformation information generated when the tire load is applied; (D) calculating the width direction distribution and the slip amount of the adhesion area and the slip area generated on the ground plane between the tire and the ground based on the asymmetrical component, and (e) calculating the calculated slip amount information Provided is a tire wear calculation method comprising calculating friction energy per unit time in consideration of the frictional force.

본 발명에 의하면, 접지압 분포, 응착 및 미끄럼 영역 분포, 횡력, 토크 및 미끄럼 양을 산출하여 구성된 단위 시간당 마찰 에너지가 타이어의 역학적 요소 및 타이어의 단면 형상을 계수들로 표현됨으로써, 마모 산출의 정확성을 높이는 효과가 달성된다.According to the present invention, the friction energy per unit time configured by calculating the ground pressure distribution, the adhesion and slip area distribution, the lateral force, the torque and the slip amount is expressed by coefficients of the tire's mechanical elements and the tire's cross-sectional shape, thereby improving the accuracy of the wear calculation. The raising effect is achieved.

후술하는 본 발명에 대한 상세한 설명은, 본 발명이 실시될 수 있는 특정 실시 예를 예시로서 도시하는 첨부 도면을 참조한다. 이들 실시 예는 당업자가 본 발명을 실시할 수 있기에 충분하도록 상세히 설명된다. 본 발명의 다양한 실시 예는 서로 다르지만 상호 배타적일 필요는 없음이 이해되어야 한다. 예를 들어, 여기에 기재되어 있는 특정 형상, 구조 및 특성은 일 실시 예에 관련하여 본 발명의 정신 및 범위를 벗어나지 않으면서 다른 실시 예로 구현될 수 있다. 또한, 각각의 개시된 실시 예 내의 개별 구성요소의 위치 또는 배치는 본 발명의 정신 및 범위를 벗어나지 않으면서 변경될 수 있음이 이해되어야 한다. 따라서, 후술하는 상세한 설명은 한정적인 의미로서 취하려는 것이 아니며, 본 발명의 범위는, 적절하게 설명된다면, 그 청구항들이 주장하는 것과 균등한 모든 범위와 더불어 첨부된 청구항에 의해서만 한정된다. 도면에서 유사한 참조부호는 여러 측면에 걸쳐서 동일하거나 유사한 기능을 지칭한다.The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the invention are different, but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

이하, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명을 용이하게 실시할 수 있도록 하기 위하여, 본 발명의 바람직한 실시 예들에 관하여 첨부된 도면을 참조하여 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention.

도 1은 본 발명의 일 실시예에 따른 타이어 마모 산출 방법을 예시적으로 나타낸 도면이다.1 is a view showing a tire wear calculation method according to an embodiment of the present invention by way of example.

도 1에 도시된 바와 같이, 본 발명의 타이어 마모 산출 방법(S100)은 1차원 및 2차원으로 모델링화 하는 단계(S110), 전후 방향 및 폭방향의 접지압 분포 획득 단계(S120), 비대칭 성분을 산출하는 단계(S130), 폭방향 분포 및 미끄럼량을 산출하는 단계(S140) 및 단위시간당 마찰에너지를 산출하는 단계(S150)를 포함한다.As shown in Figure 1, the tire wear calculation method (S100) of the present invention modeling in one and two dimensions (S110), the ground pressure distribution acquisition step (S120) of the front and rear and width directions, asymmetric components Computing step (S130), calculating the width direction distribution and sliding amount (S140) and calculating the friction energy per unit time (S150).

먼저, 본 발명의 S110 단계에서는 지면과 접촉하는 타이어를 대상으로 2차원으로 모델링화 하고, 비접지하는 타이어에 대하여 단순화된 1차원으로 모델링하는 작업을 수행한다. 상기 2차원으로 모델링된 결과는 도 2와 같이 나타낼 수 있다.First, in step S110 of the present invention, the tires in contact with the ground are modeled in two dimensions, and the ungrounded tires are modeled in a simplified one dimension. The two-dimensional modeled results may be represented as shown in FIG. 2.

이후, 본 발명의 S120 단계에서는 2차원으로 모델링화된 정보를 토대로 타이어 전후 방향의 접지압 분포와 폭방향의 접지압 분포 정보를 획득하는 작업을 수행한다. 상기 전후 방향의 접지압 분포(Circumferential Direction)와 폭방향의 접지압 분포(Widthwise Direction)에 대한 결과는 도 3의 그래프와 같이 나타낼 수 있다.Subsequently, in operation S120 of the present invention, the ground pressure distribution in the front and rear directions and the ground pressure distribution information in the width direction are performed based on the information modeled in two dimensions. The results of the circumferential direction distribution in the front-back direction and the wise-direction distribution in the width direction may be expressed as shown in the graph of FIG. 3.

이후, 본 발명의 S130 단계에서는 타이어 하중 작용시에 발생하는 타이어의 코너링 힘, 토크 및 벨트 변형 정보를 획득한 뒤, 이를 반영하여 상기 S120 단계에서 획득한 접지압 분포 정보에 대하여 접지압 분포에서 비대칭 성분을 산출하는 작업을 수행한다.Subsequently, in step S130 of the present invention, after obtaining the cornering force, torque, and belt deformation information of the tire generated when the tire load is applied, the asymmetric component in the ground pressure distribution with respect to the ground pressure distribution information obtained in step S120 is reflected. Perform the calculation.

이후, 본 발명의 S140 단계에서는 타이어와 지면과의 접지면에서 발생하는 응착 영역과 미끄럼 영역 정보를 획득하고, 상기 S130 단계에서 획득한 비대칭 성 분을 토대로 상기 응착 영역과 미끄럼 영역에 대한 폭방향 분포 및 미끄럼량을 산출하는 작업을 수행한다. 이중에서 미끄럼 영역 중 미끄럼 각도 변화에 따른 미끄럼 영역을 산출한 결과는 도 4와 같이 나타낼 수 있다. 즉, 도 4에서와 같이, 가로축으로 타이어의 접촉 폭을, 세로축으로 타이어의 접촉 길이를 나타낼 경우 코너링(횡력)되는 정도에 따라 미끄럼 량(α)로 나타낸 결과이다.Subsequently, in step S140 of the present invention, information on the adhesion area and the sliding area generated on the ground plane between the tire and the ground is obtained, and the widthwise distribution of the adhesion area and the sliding area based on the asymmetric component obtained in the step S130. And calculating the slip amount. Among these, the result of calculating the sliding area according to the sliding angle change among the sliding areas may be shown in FIG. 4. That is, as shown in FIG. 4, when the contact width of the tire is represented by the horizontal axis and the contact length of the tire is represented by the vertical axis, it is a result of the sliding amount α according to the degree of cornering (lateral force).

마지막으로, 본 발명의 S150 단계에서는 지면과 접지하고 있는 타이어에 대하여 측정된 마찰력 값을 획득하고, 상기 S140 단계에서 산출된 미끄럼량 정보에 대하여 측정된 마찰력을 반영하여 단위 시간당 마찰에너지를 산출하는 작업을 수행한다. 상기 단위 시간당 마찰에너지 산출한 결과는 도 5와 같이 나타낼 수 있으며, 가로축으로 접촉 폭을, 세로축으로 마모율일 경우, 미끄럼 각도 변화 정도에 따라 단위 시단당 마찰에너지를 산출한 결과를 나타낸다.Finally, in the step S150 of the present invention to obtain a friction force value measured for the tire grounded and the ground, calculating the friction energy per unit time by reflecting the friction force measured for the sliding amount information calculated in the step S140 Do this. The results of calculating the friction energy per unit time can be expressed as shown in FIG. 5, and when the contact width is the horizontal axis and the wear rate is the vertical axis, the friction energy per unit stage is calculated according to the degree of sliding angle change.

이와 같이, 본 실시예에서는 지면과 접촉하는 타이어를 대상으로 2차원 모델링화한 정보를 바탕으로 접지압 분포, 응착 및 미끄럼 영역, 횡력, 토그, 마찰력 및 미끄럼 량 등을 구하고, 이 결과를 반영하여 단위 시간당 마찰에너지를 구함으로써, 단위 시간당 마찰에너지가 타이어의 역학적 요소 및 타이어의 단면 형상을 표현하는 계수로 표현할 수 있는 장점을 가질 수 있다.As described above, in the present embodiment, the ground pressure distribution, the adhesion and sliding area, the lateral force, the torque, the frictional force, and the sliding amount are calculated based on the two-dimensional modeling information on the tire in contact with the ground, and the unit is reflected based on the result. By obtaining the friction energy per time, the friction energy per unit time may have an advantage that can be expressed by coefficients representing the mechanical elements of the tire and the cross-sectional shape of the tire.

도 1은 본 발명의 일 실시예에 따른 타이어 마모 산출 방법을 예시적으로 나타낸 도면이다.1 is a view showing a tire wear calculation method according to an embodiment of the present invention by way of example.

도 2는 본 발명의 일 실시예에 따른 타이어 및 접지면내 응착, 미끄럼 영역을 2차원 모델링한 결과를 나타낸 그래프이다.Figure 2 is a graph showing the results of the two-dimensional modeling of the adhesion and sliding area in the tire and the ground plane according to an embodiment of the present invention.

도 3은 본 발명의 일 실시예에 따른 폭방향 및 전후방향 접지압 분포를 모델링한 결과를 나타낸 도면이다.3 is a view showing the results of modeling the width distribution in the front and rear direction in the width direction according to an embodiment of the present invention.

도 4는 본 발명의 일 실시예에 따른 미끄럼 각도 변화에 따른 미끄럼 영역을 산출한 결과를 예시적으로 나타낸 그래프이다.4 is a graph illustrating a result of calculating a sliding area according to a sliding angle change according to an embodiment of the present invention.

도 5는 본 발명의 일 실시예에 따른 미끄럼 각도 변화에 따른 단위 시간당 마찰에너지를 산출한 결과를 예시적으로 나타낸 그래프이다.5 is a graph illustrating a result of calculating the friction energy per unit time according to the sliding angle change according to an embodiment of the present invention.

Claims (1)

(a) 지면과 접촉하는 타이어에 대하여 2차원 모델화하고, 비접지하는 타이어에 대하여 단순화된 1차원 모델화하는 단계,(a) two-dimensional modeling of the tire in contact with the ground and simplified one-dimensional modeling of the ungrounded tire, (b) 상기 2차원 모델화 정보를 토대로 타이어 전후 방향의 접지압 분포와 폭방향의 접지압 분포 정보를 획득하는 단계,(b) obtaining ground pressure distribution in the front and rear directions and ground pressure distribution information in the width direction based on the two-dimensional modeling information; (c) 상기 타이어 하중 작용시에 발생하는 타이어의 코너링 힘, 토크 및 벨트 변형 정보를 반영하여 상기 접지압 분포에 대하여 비대칭 성분을 산출하는 단계,(c) calculating an asymmetrical component with respect to the ground pressure distribution by reflecting cornering force, torque and belt deformation information of the tire generated when the tire load is applied; (d) 상기 비대칭 성분을 토대로 타이어와 지면과의 접지면에서 발생하는 응착 영역과 미끄럼 영역에 대한 폭방향 분포 및 미끄럼량을 산출하는 단계, 및(d) calculating the width distribution and the slip amount of the adhesion area and the sliding area generated in the ground plane between the tire and the ground based on the asymmetrical component, and (e) 산출된 상기 미끄럼량 정보에 계산된 마찰력을 반영하여 단위 시간당 마찰에너지를 산출하는 단계(e) calculating friction energy per unit time by reflecting the calculated frictional force in the calculated sliding amount information; 를 포함하는 타이어 마모 산출 방법.Tire wear calculation method comprising a.
KR1020090112725A 2009-11-20 2009-11-20 Calculation method of tire wear characteristics KR101146087B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020090112725A KR101146087B1 (en) 2009-11-20 2009-11-20 Calculation method of tire wear characteristics
CN200910266000.5A CN102073781B (en) 2009-11-20 2009-12-31 Abrasion calculation method for tyre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090112725A KR101146087B1 (en) 2009-11-20 2009-11-20 Calculation method of tire wear characteristics

Publications (2)

Publication Number Publication Date
KR20110056047A true KR20110056047A (en) 2011-05-26
KR101146087B1 KR101146087B1 (en) 2012-05-11

Family

ID=44032319

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090112725A KR101146087B1 (en) 2009-11-20 2009-11-20 Calculation method of tire wear characteristics

Country Status (2)

Country Link
KR (1) KR101146087B1 (en)
CN (1) CN102073781B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210062356A (en) * 2019-11-21 2021-05-31 넥센타이어 주식회사 System and method for measuring condition of tire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021128227A1 (en) * 2019-12-26 2021-07-01 山东玲珑轮胎股份有限公司 Method for numerical evaluation and optimization of tire wear performance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3363442B2 (en) * 2001-04-26 2003-01-08 住友ゴム工業株式会社 Simulation method of tire performance
ATE345249T1 (en) * 2004-01-16 2006-12-15 Michelin Soc Tech SYSTEM FOR THE STABILITY CONTROL OF A VEHICLE WITH SEVERAL PREDICTIVE ALGORITHMS AND A SELECTION PROCESS
JP5104042B2 (en) * 2007-05-30 2012-12-19 横浜ゴム株式会社 Tire performance prediction method, tire performance prediction computer program, and tire design method
KR20100048133A (en) * 2008-10-30 2010-05-11 한국타이어 주식회사 Method for evaluating tire surface wear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210062356A (en) * 2019-11-21 2021-05-31 넥센타이어 주식회사 System and method for measuring condition of tire

Also Published As

Publication number Publication date
CN102073781B (en) 2015-03-25
CN102073781A (en) 2011-05-25
KR101146087B1 (en) 2012-05-11

Similar Documents

Publication Publication Date Title
JP6921096B2 (en) Devices and methods to improve the performance of vehicle anti-lock braking and anti-slip regulation
CN108780016B (en) Tire load estimation method and tire load estimation device
KR101718752B1 (en) System and method for analyzing tire tread parameters
WO2016158630A1 (en) Tire wear amount estimating method and tire wear amount estimating device
JP5012675B2 (en) Tire attitude control apparatus and method
JP2009297450A5 (en)
JP5184252B2 (en) Estimating the effective grip margin of tires during rolling
EP1840552A3 (en) Tire transient response data calculating method, data processing method, tire designing method, vehicle motion predicting method, and tire cornering characteristic evaluation method and evaluation device therefor
JP2011168211A (en) Estimating method of tire partial wear
DE602005017410D1 (en) METHOD FOR CALCULATING A LOAD VALVE SLIP CURVE OF A TIRE
JP7009098B2 (en) Road surface condition estimation method
CN103278339A (en) Method for estimating lateral force of tire
JP6899752B2 (en) Methods, systems and programs for calculating the coefficient of friction margin on the tire tread
JP4160100B2 (en) Tire transient response data calculation method, data processing method, tire design method, and vehicle motion prediction method
KR101146087B1 (en) Calculation method of tire wear characteristics
JP2007176260A (en) Brake control device and controlling method
JP2006199217A (en) Tire performance predicting device
He et al. Interval recognition algorithm of the pavement surface condition based on Lagrange interpolation method
JPWO2021038788A5 (en) Robustness evaluation device, robustness evaluation method and program
Miyashita et al. Analytical model of μ–S curve using generalized skewed-parabola
JP6415951B2 (en) Tire performance evaluation method, tire performance evaluation apparatus, and tire performance evaluation program
JP2015016756A (en) Calculation method of friction coefficient of tread rubber, calculation method of tire characteristic, calculation device of friction coefficient of tread rubber, and program
JP2001047822A (en) Frictional energy analyzing method for rolling tire
JP2010179767A (en) Road surface friction coefficient estimating device
Xiong et al. Assessment of brush model based friction estimator using lateral vehicle dynamics

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
AMND Amendment
E601 Decision to refuse application
AMND Amendment
X701 Decision to grant (after re-examination)
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee