公开(公告)号：US06761060B2

公开(公告)日：2004-07-13

申请号：US09842409

申请日：2001-04-26

Applicant: Federico Mancosu ,  Roberto Sangalli

Inventor： Federico Mancosu ,  Roberto Sangalli

IPC: G01M1702

CPC classification number: G01M17/02 ,  B60C99/003 ,  B60C99/006 ,  G06F17/5095

Abstract: A tire for a wheel of a vehicle includes selected mixes of rubber and reinforcing materials, a carcass, a belting structure, a tread band provided with inserts, shoulders, sidewalls, and beads provided with bead wires and bead fillings. The tire is further represented by a concentrated-parameter physical model including a brush model with a road, where concentrated parameters of the physical model include structural stiffness Kc consisting of lateral stiffness Kcy, camber torsional stiffness Kc&thgr;x and yawing torsional stiffness Kc&thgr;z. The tire is further represented by a finite-element model including first and second elements and has construction characteristics substantially equivalent to the concentrated parameters that describe the dynamic behavior of the tire and enable the determination of selected physical quantities suitable for indicating the drift behavior of the tire for evaluation of the tire in relation to its road handling.

Abstract translation: 用于车辆轮胎的轮胎包括选择的橡胶和增强材料的混合物，胎体，带状结构，设置有胎圈丝和胎圈填料的插入件，肩部，侧壁和胎圈的胎面带。 轮胎进一步由包括具有道路的刷模型的集中参数物理模型表示，其中物理模型的集中参数包括由横向刚度Kcy，外倾扭转刚度Kcthetax和偏转扭转刚度Kcthetaz组成的结构刚度Kc。 轮胎进一步由包括第一和第二元件的有限元模型表示，并且具有与描述轮胎的动态特性的集中参数基本相同的构造特征，并且能够确定适合于指示轮胎的漂移行为的选定物理量 用于评估轮胎相对于其道路处理的轮胎。

公开(公告)号：US06697772B2

公开(公告)日：2004-02-24

申请号：US09987645

申请日：2001-11-15

Applicant: Federico Mancosu ,  Giuseppe Matrascia ,  Paolo Esercitato

Inventor： Federico Mancosu ,  Giuseppe Matrascia ,  Paolo Esercitato

IPC: G06F1710

CPC classification number: B60C11/00 ,  G01M17/02

Abstract: A method for determining preselected performance characteristics of a tire tread includes the steps of dividing the tread into a 3-D grid of cells; dividing a tread contact area into longitudinal and transversal strips; associating a longitudinal or transversal stiffness value with each strip using a linear relationship; assigning a preselected deformation state to each longitudinal and transversal strip; determining at least one single force, associated with each strip and acting in the longitudinal or transversal direction by means of the stiffness value and the deformation state; determining at least one total force associated with each contact area by summing all single forces, the total force representing at least one of the performance characteristics; determining a pattern of the total forces of all the contact areas; and analyzing the pattern of total forces to evaluate whether they assume values that optimize at least one preselected performance characteristic of the tread.

Abstract translation: 用于确定轮胎胎面的预选性能特征的方法包括以下步骤：将胎面分成3-D格的格子; 将胎面接触区域分成纵向和横向条带; 使用线性关系将纵向或横向刚度值与每个条带相关联; 为每个纵向和横向条分配预选的变形状态; 确定与每个条带相关联并且通过刚度值和变形状态在纵向或横向方向上作用的至少一个单个力; 通过对所有单个力求和来确定与每个接触区域相关联的至少一个总力，所述总体力代表所述性能特征中的至少一个; 确定所有接触区域的总力的模式; 并分析总力的模式来评估它们是否假定能够优化胎面的至少一个预选性能特征的值。

公开(公告)号：US06609417B1

公开(公告)日：2003-08-26

申请号：US09672078

申请日：2000-09-29

Applicant: Marco Cantu ,  Federico Mancosu ,  Alessandro Volpi

Inventor： Marco Cantu ,  Federico Mancosu ,  Alessandro Volpi

IPC: G01L902

CPC classification number: B60C11/12 ,  B60C11/24 ,  B60C2011/1213 ,  B60C2011/1231 ,  B60C2011/1245 ,  G01M17/027

Abstract: A method of foreseeing and controlling wearing in the tread of a tire based on the use of cuts of a limited depth (in the order of tenth parts of one millimeter) formed on the external surface of the tread, in the thickness of the elastomeric material. The cut is preferably made by a laser beam. Rotation of the tire on a road or on any other friction surface enables both the uneven wearing of the tread, highlighted by localized spots devoid of cuts, to be quickly verified by inspecting the maintenance state of said cuts, and the wear rate of the tread, which can be drawn from calculation of the time elapsing between the disappearance of two groups of cuts of different depth.

Abstract translation: 基于使用形成在胎面的外表面上的有限深度（大约十分之一毫米）的切口，在弹性体材料的厚度方面，预测和控制轮胎胎面中的磨损的方法 。 切割优选由激光束制成。 轮胎在路面或任何其他摩擦表面上的旋转使得能够通过检查所述切割的维护状态和胎面的磨损率来快速验证胎面的不均匀磨损，由局部缺点切割突出显示 ，可以从计算不同深度的两组切割消失之间的时间计算得出。

公开(公告)号：US6151959A

公开(公告)日：2000-11-28

申请号：US114149

申请日：1998-07-13

Applicant: Marco Cantu ,  Federico Mancosu ,  Alessandro Volpi

Inventor： Marco Cantu ,  Federico Mancosu ,  Alessandro Volpi

IPC: B60C11/12 ,  B60C11/24 ,  G01M17/02

CPC classification number: B60C11/12 ,  B60C11/24 ,  G01M17/027 ,  B60C2011/1213 ,  B60C2011/1231 ,  B60C2011/1245

Abstract: A method of foreseeing and controlling wearing in the tread of a tire based on the use of cuts of a limited depth (in the order of tenth parts of one millimeter) formed on the external surface of the tread, in the thickness of the elastomeric 7 material. The cut is preferably made by a laser beam. Rotation of the tire on a road or on any other friction surface enables both the uneven wearing of the tread, highlighted by localized spots devoid of cuts, to be quickly verified by inspecting the maintenance state of said cuts, and the wear rate of the tread, which can be drawn from calculation of the time elapsing between the disappearance of two groups of cuts of different depth.

Abstract translation: 基于使用形成在胎面的外表面上的有限深度（大约十分之一毫米）的切口，在弹性体7的厚度方面，预测和控制轮胎胎面中的磨损的方法 材料。 切割优选由激光束制成。 轮胎在路面或任何其他摩擦表面上的旋转使得能够通过检查所述切割的维护状态和胎面的磨损率来快速验证胎面的不均匀磨损，由局部缺点切割突出显示 ，可以从计算不同深度的两组切割消失之间的时间计算得出。

公开(公告)号：US5853509A

公开(公告)日：1998-12-29

申请号：US752258

申请日：1996-11-18

Applicant: Maurizio Boiocchi ,  Federico Mancosu ,  Giuseppe Matrascia

Inventor： Maurizio Boiocchi ,  Federico Mancosu ,  Giuseppe Matrascia

IPC: B60C3/00 ,  B60C3/04 ,  B60C5/00

CPC classification number: B60C3/04 ,  B60C99/006 ,  Y10T152/10495 ,  Y10T152/10765 ,  Y10T152/10855

Abstract: A tire for a vehicle, that is representable by a dynamic rigid-ring tire model with concentrated parameters, has construction features that are substantially equivalent to concentrated parameters that fall within the following intervals corresponding to preselected indices of comfort: rb=100-300 (Ns/m) rbt=2-40 (Nms/rad) rcz=100-350 (Ns/m) rct=10-90 (Nms/rad) Ckx=18,000-70,000 (N), where rb is a radial foundation dampening of said dynamic tire model; rbt is a torsional foundation dampening of said dynamic tire model; rcz is a residual radial dampening of said dynamic tire model; rct is a residual torsional dampening of said dynamic tire model; and Ckx is a slipping stiffness of a brush model of said tread.

Abstract translation: 用于具有集中参数的动态刚性环形轮胎模型可表示的用于车辆的轮胎具有基本相当于集中参数的构造特征，所述集中参数落入对应于预选舒适指数的以下间隔内：rb = 100-300（ Ns / m）rbt = 2-40（Nms / rad）rcz = 100-350（Ns / m）rct = 10-90（Nms / rad）Ckx = 18,000-70,000（N），其中rb是径向基础阻尼 的动态轮胎模型; rbt是所述动态轮胎模型的扭转基础阻尼; rcz是所述动态轮胎模型的残余径向阻尼; rct是所述动态轮胎模型的残余扭转阻尼; Ckx是所述胎面的刷子模型的滑动刚度。

公开(公告)号：US5817935A

公开(公告)日：1998-10-06

申请号：US752381

申请日：1996-11-20

Applicant: Carlo Di Bernardo ,  Federico Mancosu ,  Giuseppe Matrascia

Inventor： Carlo Di Bernardo ,  Federico Mancosu ,  Giuseppe Matrascia

IPC: B60C19/00 ,  G01M7/08 ,  G01M17/02

CPC classification number: G01M17/022 ,  G01M7/08

Abstract: An apparatus for testing a test wheel, provided with a tire and a rim, by passing the wheel over an obstacle. The apparatus including a road-wheel, a steering knuckle capable of rotatably supporting a hub and the test wheel, and two suspension arms supporting the steering knuckle. The apparatus also comprises a first, second, third and fourth leaf spring connected to the suspension arms and to a supporting frame, a fifth leaf spring connected to the steering knuckle and to the supporting frame, and a pneumatic spring in engagement with the steering knuckle and with the supporting frame. First and second acceleration transducers associated with the hub provide measurements of natural frequencies and dampenings of the tire in a radial and in a longitudinal direction. The apparatus can be used both in a movable-hub mode and in a fixed-hub mode.

Abstract translation: 一种用于通过将车轮通过障碍物来测试具有轮胎和轮辋的测试轮的装置。 该装置包括路轮，能够旋转地支撑轮毂和测试轮的转向节以及支撑转向节的两个悬架臂。 该装置还包括连接到悬架臂和支撑框架的第一，第二，第三和第四板簧，连接到转向节和支撑框架的第五板簧，以及与转向节接合的气动弹簧 和支撑框架。 与轮毂相关联的第一和第二加速度传感器提供轮胎在径向和纵向上的固有频率和阻尼的测量。 该装置可以以可移动集线器模式和固定集线器模式使用。

公开(公告)号：US5801304A

公开(公告)日：1998-09-01

申请号：US728795

申请日：1996-10-10

Applicant: Marco Cantu ,  Federico Mancosu ,  Alessandro Volpi

Inventor： Marco Cantu ,  Federico Mancosu ,  Alessandro Volpi

IPC: B29D30/52 ,  B60C11/12 ,  B60C11/24 ,  G01M17/02 ,  E01C23/00

CPC classification number: G01M17/027 ,  B60C11/12 ,  B60C11/24 ,  B60C2011/1213 ,  B60C2011/1231 ,  B60C2011/1245

Abstract: A method of foreseeing and controlling wearing in the tread of a tire based on the use of cuts of a limited depth (in the order of tenth parts of one millimeter) formed on the external surface of the tread, in the thickness of the elastomeric material. The cut is preferably made by a laser beam. Rotation of the tire on a road or on any other friction surface enables both the uneven wearing of the tread, highlighted by localized spots devoid of cuts, to be quickly verified by inspecting the maintenance state of the cuts. Also, and the wear rate of the tread can be drawn from calculation of the time, during the rotation, elapsing between the disappearance of two groups of cuts of different depth.

Abstract translation: 基于使用形成在胎面的外表面上的有限深度（大约十分之一毫米）的切口，在弹性体材料的厚度方面，预测和控制轮胎胎面中的磨损的方法 。 切割优选由激光束制成。 轮胎在道路上或任何其他摩擦表面上的旋转使得能够通过检查切割的维护状态来快速地验证胎面的不均匀磨损，这是通过局部区域没有切口突出显示的。 此外，胎面的磨损率可以从旋转期间的时间计算，两个不同深度切割组的消失之间经过而得出。

公开(公告)号：US5247463A

公开(公告)日：1993-09-21

申请号：US793729

申请日：1991-11-21

Applicant: Federico Mancosu ,  Roberto Sgnaolin ,  Roberto Zavaglio

Inventor： Federico Mancosu ,  Roberto Sgnaolin ,  Roberto Zavaglio

IPC: G01B11/24

CPC classification number: G01B11/2416

Abstract: An apparatus and a method for inspection of the toothed configuration of an elastomeric tubular sleeve which will later be cut into short lengths to produce toothed driving belts. A tubular sleeve (2) having a toothed inner surface (2a) is operatively mounted around rollers (5, 6) operable in rotation to move the sleeve transversely to the direction of the teeth (3). A reading member (15) movable parallel to the rollers (5, 6) detects, through the repeated reading of the height of the toothed surface (2a) passing under a given read point, the transverse outline of the individual teeth (3), to enable comparison with geometric parameters stored in a processing unit (20). The translation speed of the sleeve (2) is identified by measuring the time necessary to the passage of two characteristic points of two contiguous teeth (3). Assigned to each height value detected by the reading member (15) is a corresponding distance value from one of the characteristic points of the teeth (3).

公开(公告)号：US5239184A

公开(公告)日：1993-08-24

申请号：US811237

申请日：1991-12-20

Applicant: Federico Mancosu ,  Simone Schiatti ,  Roberto Zavaglio

Inventor： Federico Mancosu ,  Simone Schiatti ,  Roberto Zavaglio

IPC: G01B11/30 ,  G01N21/88 ,  G01N21/89 ,  G06T1/00 ,  H04N7/18

CPC classification number: G01N21/8903

Abstract: A sleeve (2) of elastomeric material is operationally mounted on support rollers (5, 6) which can be operated to rotate the sleeve. At least one or more television camera (15) shoots the surface (2a) of the sleeve (2) which is illuminated with light at a low angle. The superficial appearance of the sleeve (2) is recorded in the form of images, each divided into a plurality of pixels (P) distributed in an orderly fashion. The values of luminosity of the individual pixels (P) are recorded and processed to highlight those pixels wherein due to superficial irregularities (C) on the sleeve (2), a variation is detected of the light reflected by the surface (2a) of the sleeve itself. On the basis of the position occupied by the highlighted pixels (P) it is possible to go back to the position of the superficial defects (C) along the extension of the sleeve (2).