System and method for determining tire wear

    公开(公告)号:US09921134B2

    公开(公告)日:2018-03-20

    申请号:US14816474

    申请日:2015-08-03

    CPC classification number: G01M17/022 G01L17/005

    Abstract: System for determining tire wear for tires of a wheeled motor vehicle including a direct tire pressure determination unit being configured to measure at least the tire pressure of the tires; an indirect tire pressure determination unit being configured to determine for at least some of the tires a roll radius factor corresponding to or depending from the roll radius of the respective tire; a tire force determination unit being configured to determine a vertical force factor corresponding to or depending from a vertical force applied to the tires; and a processing unit for determining the tire wear for such tires of the motor vehicle for which the indirect tire pressure determination unit provides the respective roll radius factor, namely by compensating the roll radius factor of the tires provided by the indirect tire pressure determination unit.

    Calibrating apparatus of tire testing machine and calibrating method of tire testing machine
    5.
    发明授权
    Calibrating apparatus of tire testing machine and calibrating method of tire testing machine 有权
    轮胎试验机校准装置及轮胎试验机校准方法

    公开(公告)号:US09494494B2

    公开(公告)日:2016-11-15

    申请号:US14480957

    申请日:2014-09-09

    CPC classification number: G01M17/022 G01M17/02

    Abstract: A calibrating apparatus of a tire testing machine of the present invention calibrates force components along a lateral direction of a load cell on a tire testing machine provided with a rotary drum and the load cell mounted to a shaft portion of the rotary drum and capable of measuring force applied to the rotary drum, and has a hook member hooked on an outer peripheral edge of the rotary drum, a linear body, one end side of which is connected to the hook member, a load applying member connected to the other end side of the linear body and capable of generating a reference load toward a downward direction, and a pulley device around which the linear body is wound to convert the downward force by the load applying member into an upward force on one end side of the linear body.

    Abstract translation: 本发明的轮胎试验机的校准装置在设置有旋转鼓的轮胎试验机和安装在旋转鼓的轴部上的测力传感器的沿负载传感器的横向的力方向校准力分量,并且能够测量 施加到旋转鼓的力,并且具有钩在旋转鼓的外周边缘上的钩构件,其一端侧连接到钩构件的线状体,连接到所述钩构件的另一端侧的负载施加构件 该线状体能够朝向下方向产生基准负荷;以及带轮装置,线状体被卷绕在该带轮装置上,以通过负荷施加构件将向下的力转换成线状体的一端侧上的向上的力。

    PRESSING LOAD SETTING METHOD OF TIRE TESTING MACHINE
    6.
    发明申请
    PRESSING LOAD SETTING METHOD OF TIRE TESTING MACHINE 有权
    轮胎试验机负荷设定方法

    公开(公告)号:US20160252432A1

    公开(公告)日:2016-09-01

    申请号:US14962675

    申请日:2015-12-08

    CPC classification number: G01M17/022

    Abstract: A tire and a drum are relatively moved so that a pressing load is increased, and stopped when the pressing load becomes a predetermined value lower than a target value. A value of the pressing load and a relative distance between the tire and the drum are measured at timings when a circumferential position of the tire is the same. A dynamic longitudinal spring constant of the tire is calculated by using change amounts of the pressing load and the relative distance. An adjustment amount serving as a distance by which the tire and the drum are relatively moved so that a value of the pressing load when relative movement is stopped becomes the target value is calculated by using the dynamic longitudinal spring constant and a difference between the arrival value and the target value. The tire and the drum are relatively moved by the adjustment amount.

    Abstract translation: 轮胎和鼓相对移动,使得按压负载增加,并且当按压负载变为比目标值低的预定值时停止。 在轮胎的周向位置相同的定时,测量按压负荷的值和轮胎与滚筒之间的相对距离。 通过使用压力负荷的变化量和相对距离来计算轮胎的动态纵向弹簧常数。 通过使用动态纵向弹簧常数和到达值之间的差来计算用作轮胎和滚筒相对移动的距离的调整量,使得当相对移动停止时的按压负载的值成为目标值 和目标值。 轮胎和鼓相对移动了调节量。

    ROTATABLY DRIVING DEVICE FOR THE VISUAL INSPECTION OF A TIRE AND ASSOCIATED METHOD
    7.
    发明申请
    ROTATABLY DRIVING DEVICE FOR THE VISUAL INSPECTION OF A TIRE AND ASSOCIATED METHOD 有权
    用于视觉检查轮胎和相关方法的可旋转驱动装置

    公开(公告)号:US20160178482A1

    公开(公告)日:2016-06-23

    申请号:US14907098

    申请日:2014-07-23

    Abstract: The device for rotating a tire comprises a fixed support, a driving belt 16 that is provided with a contact face for making contact with an annular part of the tire and is able to allow said tire to be rotated, a plurality of first pulleys 18 that are mounted on the support and are in abutment with the driving belt on the side opposite to from the contact face in order to press said contact face radially against the annular part of the tire, and at least one second pulley 20 that is in abutment with the contact face of the driving belt and is mounted so as to be able to move in translation on the support in order to locally space said contact face apart from the annular part of the tire.

    Abstract translation: 用于旋转轮胎的装置包括固定支撑件,传动带16,其设置有用于与轮胎的环形部分接触并且能够允许所述轮胎旋转的接触面;多个第一带轮18,其被 安装在支撑件上,并且与驱动带邻接于与接触面相反的一侧,以便将所述接触面径向地压靠在轮胎的环形部分上,以及至少一个第二滑轮20,其与 驱动带的接触面并且被安装成能够在支撑件上平移地移动,以便使所述接触面与轮胎的环形部分分开。

    PROBE AND DEVICE FOR TESTING TIRES
    8.
    发明申请
    PROBE AND DEVICE FOR TESTING TIRES 审中-公开
    用于测试轮胎的探头和装置

    公开(公告)号:US20160167466A1

    公开(公告)日:2016-06-16

    申请号:US14567304

    申请日:2014-12-11

    CPC classification number: B60C25/002 G01M17/022 G01N27/60

    Abstract: An apparatus for testing a tire is disclosed. The apparatus includes an improved test probe. The apparatus comprising a support frame, first and second rollers connected to the support frame and arranged to support to support a crown portion of the tire, a probe having a support bracket for receiving a section of chains. The section of chains is comprised of a plurality of first chain members, wherein the first chain members extend in a first direction. Preferably, the first chain members are oriented in parallel relation with respect to each other. The first direction is preferably in the vertical direction. The section of chains further includes at least one cross chain member which contacts or interlinks or joins with each first chain member. The section of chains may also comprise chainmail. The section of chains or chainmail is positioned in the tire and is in electrical communication with a first electrode, wherein one of said rollers is a second electrode, and a power supply in electrical communication with the first and second electrode in order to created a electric potential between the first and second electrode.

    Abstract translation: 公开了一种轮胎测试装置。 该装置包括改进的测试探针。 该装置包括支撑框架,第一和第二辊连接到支撑框架并且被布置成支撑以支撑轮胎的胎冠部分,探针具有用于接收链条的一部分的支撑支架。 链条部分由多个第一链条构件组成,其中第一链条件沿第一方向延伸。 优选地,第一链构件相对于彼此平行地取向。 第一方向优选为垂直方向。 链的部分还包括至少一个与每个第一链构件接触或互连或连接的交叉链构件。 链的一部分也可能包括链邮。 链条或链条邮件的部分位于轮胎中并且与第一电极电连通,其中所述辊中的一个是第二电极,以及与第一和第二电极电连通以产生电 第一和第二电极之间的电位。

    Tire uniformity testing device and tire uniformity testing method
    9.
    发明授权
    Tire uniformity testing device and tire uniformity testing method 有权
    轮胎均匀性试验装置和轮胎均匀性试验方法

    公开(公告)号:US09360396B2

    公开(公告)日:2016-06-07

    申请号:US14349989

    申请日:2012-06-22

    CPC classification number: G01M17/022 G01M17/02

    Abstract: In a tire uniformity measurement, accurate tire uniformity is obtained from a measurement waveform immediately after a rotation of a tire is switched from a normal rotation direction to a reverse rotation direction. A tire uniformity testing device of the present invention includes a measurement unit 108 that obtains a force variation from a uniformity waveform corrected by a correction unit 109 that corrects the uniformity waveform so as to eliminate a shift gradient α existing in the uniformity waveform measured after a rotation of a tire T1 is reversed, and further includes an air-outflow regulation member 220 that regulates an from flowing into a tire T2 when a drum 205 retreats or advances.

    Abstract translation: 在轮胎均匀性测量中,从将轮胎的旋转从正常旋转方向切换到反向旋转方向之后的测量波形获得准确的轮胎均匀性。 本发明的轮胎均匀性测试装置包括测量单元108,其从由校正单元109校正的均匀性波形获得力变化,校正均匀性波形,以消除存在于a 轮胎T1的旋转被反转,并且还包括空气流出调节构件220,其在滚筒205退回或前进时调节流入轮胎T2。

    METHOD AND APPARATUS FOR MEASURING TIRE GROUND CONTACT PROPERTIES
    10.
    发明申请
    METHOD AND APPARATUS FOR MEASURING TIRE GROUND CONTACT PROPERTIES 审中-公开
    测量轮胎接地性能的方法和装置

    公开(公告)号:US20150135812A1

    公开(公告)日:2015-05-21

    申请号:US14415417

    申请日:2013-07-03

    Inventor: Isao Kuwayama

    CPC classification number: G01M17/022

    Abstract: A tire (T) for measurement, having applied thereto a required camber angle (CA) and slip angle (SA), is contacted against a rotatably driven rotating drum (1) having embedded therein a three-component force sensor (measurement unit 3) capable of measuring ground contact pressure (P), width direction shear stress (τx), and circumferential shear stress (τy) (properties) of the tire (T). The rotating drum (1) and tire (T) are rotated and the tire (T) is passed over the three-component force sensor (3) multiple times. The tire (T) properties are measured multiple times, and the tire circumferential direction position of each measurement point is identified. A ground contact pressure distribution, width direction shear stress distribution, and circumferential shear stress distribution in a contact region of the tire (T) with the rotating drum (1) are obtained by repeating measurement and identification while displacing the tire (T) along the rotation axis of the rotating drum (1).

    Abstract translation: 将已经施加了所需的外倾角(CA)和滑移角(SA)的用于测量的轮胎(T)与内嵌有三分力传感器(测量单元3)的可旋转驱动的旋转鼓(1)接触, 能够测量轮胎(T)的接地压力(P),宽度方向剪切应力(τx)和周向剪切应力(τy)(性能)。 旋转滚筒(1)和轮胎(T)旋转,轮胎(T)多次通过三分力传感器(3)。 对轮胎(T)的性质进行多次测量,并且确定每个测量点的轮胎周向位置。 通过重复测量和识别,同时沿着轮胎(T)移动轮胎(T),在轮胎(T)与旋转鼓(1)的接触区域中的接地压力分布,宽度方向剪切应力分布和周向剪切应力分布 旋转滚筒(1)的旋转轴线。

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