公开(公告)号：US4815004A

公开(公告)日：1989-03-21

申请号：US920247

申请日：1986-10-17

Applicant: James C. Beebe

Inventor： James C. Beebe

IPC: G01M17/02

CPC classification number: G01M17/022

Abstract: An apparatus and method for predicting fore-aft translations of tires. An inflated tire is rotated at a nominally constant angular velocity against a freely rotatable rigid loadwheel under a radial load. Changes in the instantaneous effective radius of the tire as it rolls give rise to fore/aft forces which tend to translate the tire alternately forward, toward the direction of travel and aft, toward the opposite direction. The tendency of the tire to so translate is predicted by measuring variations in effective radius or a parameter correlated thereto such as changes in the motion of the tread surface of the tire or the loadwheel relative to the angular speed of the tire.

公开(公告)号：US4422336A

公开(公告)日：1983-12-27

申请号：US326558

申请日：1981-12-02

Applicant: James C. Beebe

Inventor： James C. Beebe

IPC: G01L1/00 ,  G01B7/16 ,  G01L5/00

CPC classification number: G01B7/16

Abstract: An analog compensation circuit for compensating for mechanical instrumentation resonance. The transfer function of the instrumentation resonance phenomenon is determined, and the compensation circuit is constructed to produce the inverse transfer function of the instrumentation resonance transfer function. The input of the compensation circuit is connected to the electrical instrumentation output signal. With the instrumentation resonance modeled as the equivalent of a second order filter, the compensation circuit includes sections for producing at a combined output a first intermediate signal representative of a constant term, a second intermediate signal representative of a first derivative term, and a third intermediate signal representative of a second derivative term.

Abstract translation: 用于补偿机械仪表谐振的模拟补偿电路。 确定仪器谐振现象的传递函数，并且补偿电路被构造成产生仪器谐振传递函数的逆传递函数。 补偿电路的输入连接到电气仪表输出信号。 在仪器谐振被建模为等效于二阶滤波器的情况下，补偿电路包括用于在组合输出端产生表示常数项的第一中间信号，表示一阶导数项的第二中间信号和第三中间信号 代表二阶导数项的信号。

公开(公告)号：US06834559B1

公开(公告)日：2004-12-28

申请号：US10030610

申请日：2002-01-08

Applicant: James C. Beebe

Inventor： James C. Beebe

IPC: G01M1900

CPC classification number: G01M17/022

Abstract: An apparatus and method for improving the measurement of force variation in a tire (20) being tested on a tire uniformity machine. The apparatus includes a loadwheel assembly (500) including a rotatable loadwheel (510) connected to load sensors (530, 540) for detecting forces imposed on the loadwheel (510) by a tire (20) being tested. Vibration sensors (700, 702, 704) are associated with the loadwheel assembly (500) for detecting vibrations in the loadwheel (510) caused by forces other than the forces applied by the tire (20). Means is provided for subtracting the vibration induced forces from the tire (20) imposed forces in order to provide more precise tire uniformity data. The vibration sensors (700, 702, 704) which comprise accelerometers are used to determine vibration induced forces in the lateral and radial direction with respect to the loadwheel (510). The signals provided by the accelerometers (700, 702, 704) are communicated to a differential amplifier which also receives signals from the load cells (530, 540). The net signal more closely represents the actual force variation generated by the tire (20) being tested.

Abstract translation: 一种用于改进在轮胎均匀机上测试的轮胎（20）中的力变化测量的装置和方法。 该装置包括负载轮组件（500），其包括连接到负载传感器（530,540）的可旋转负载轮（510），用于通过被测试的轮胎（20）检测施加在负载轮（510）上的力。 振动传感器（700,702,704）与负载轮组件（500）相关联，用于检测由轮胎（20）施加的力以外的力引起的负载轮（510）中的振动。 提供了用于从轮胎（20）施加的力减去振动引起的力以提供更精确的轮胎均匀性数据的装置。 使用包括加速度计的振动传感器（700,702,704）来确定横向和径向方向上相对于负载轮（510）的振动诱发力。 由加速度计（700,702,704）提供的信号被传送到差分放大器，该差分放大器还接收来自测力传感器（530,540）的信号。 净信号更接近地表示由被测试的轮胎（20）产生的实际力变化。

公开(公告)号：US5351405A

公开(公告)日：1994-10-04

申请号：US52380

申请日：1993-04-23

Applicant: James C. Beebe

Inventor： James C. Beebe

IPC: B60C25/00 ,  G01M1/30 ,  G01B5/24 ,  G01B3/56

CPC classification number: G01M1/30

Abstract: Methods and apparatus for determining an angular location on a round object during a current operation in order to facilitate positioning the object for subsequent operation. At a first station, an angular location identifying feature is sensed, and an angle at which a predetermined desired angular location is located with respect to the feature is determined. At a second station, the feature is sensed, the object is indexed from the feature in an amount equal to the angle, and the object is marked at the relocated predetermined desired angular location. Another method eliminates the marking step at the second station, and the subsequent operation is performed instead. Apparatus comprises a first station means and a second station means. The first station means includes means for sensing an angular location identifying feature on the object and measurement means for determining an angle at which a predetermined desired angular location on the object is located with respect to the feature. Second station means includes sensing means for sensing the feature, indexing means for indexing from the feature in an amount equal to the angle, and marking means for marking the object at the relocated desired location.

Abstract translation: 用于在当前操作期间确定圆形物体上的角位置的方法和装置，以便于将物体定位以用于随后的操作。 在第一站处，检测角位置识别特征，并且确定预定的期望角位置相对于特征位于的角度。 在第二站处，感测特征，物体以等于该角度的量从特征索引，并且在重新定位的预定期望角度位置标记物体。 另一种方法消除了在第二站处的标记步骤，而代之以后续的操作。 装置包括第一站装置和第二站装置。 第一站装置包括用于感测物体上的角位置识别特征的装置和用于确定对象上的预定期望角位置相对于特征定位的角度的测量装置。 第二站装置包括用于感测特征的感测装置，用于从等于该角度的量索引的分度装置，以及用于在重定位的期望位置处标记物体的标记装置。

公开(公告)号：US4704900A

公开(公告)日：1987-11-10

申请号：US897924

申请日：1986-08-19

Applicant: James C. Beebe

Inventor： James C. Beebe

IPC: G01M17/02

CPC classification number: G01M17/022

Abstract: An apparatus and method for imposing a desired average radial load force on a tire by calculating the current average force between the tire and a loadwheel based on the average radial force and radial distance between the tire and a loadwheel over the last previous complete revolution of the tire, the spring constant of the tire and the current radial distance between the tire and the loadwheel. The calculated average force value is applied as a feedback signal to the loadwheel position controller in order to achieve the desired average radial load. The spring constant of the tire may be determined from the change in force per unit distance as the tire is loaded or programmed as a constant to be applied for testing all tires of a given type.

公开(公告)号：US5309377A

公开(公告)日：1994-05-03

申请号：US788086

申请日：1991-11-05

Applicant: James C. Beebe

Inventor： James C. Beebe

IPC: G01L25/00 ,  G01M17/02 ,  G01D5/25

CPC classification number: G01L25/00 ,  G01M17/022

Abstract: A tire uniformity inspection machine is calibrated by applying to at least one force measuring channel thereof a signal which simulates the application of a force of a magnitude greater than any force actually applied to the machine during calibration. That signal, which is preferably of a magnitude appropriate to simulate the largest forces encountered during actual tire testing, can be generated by connecting the channel, preferably at its input, to an energy source through an impedance. The response of the channel to the signal is measured and a calibration factor is determined based on that response. Such calibration factor accounts for the actual behavior of the channel more truely than prior art calibration techniques which relied solely upon the relatively small signal excitation conditions achievable by applying a relatively small actual force to the machine. Thus, the invention affords tire uniformity measurements of improved accuracy.

Abstract translation: 轮胎均匀性检查机通过向其至少一个力测量通道施加一个信号进行校准，该信号模拟施加大于在校准期间实际施加到机器上的任何力的量的力。 该信号优选地适合于模拟在实际的轮胎测试期间遇到的最大的力的大小，可以通过将通道优选地在其输入处通过阻抗连接到能量源来产生。 测量通道对信号的响应，并根据该响应确定校准因子。 这种校准因子比现有技术的校准技术更真实地考虑了通道的实际行为，其仅依赖于通过对机器施加相对小的实际力而可实现的相对小的信号激励条件。 因此，本发明提供了提高精度的轮胎均匀性测量。

公开(公告)号：US5237505A

公开(公告)日：1993-08-17

申请号：US695572

申请日：1991-05-03

Applicant: James C. Beebe

Inventor： James C. Beebe

IPC: G01M1/38 ,  C12N9/16 ,  C12Q1/68 ,  G01M1/20 ,  G01M1/32

CPC classification number: G01M1/326 ,  G01M1/20

Abstract: The mass of a tire/wheel assembly is altered to apply a static imbalance to the assembly in a manner which reduces the overall tendency of the assembly to cause vibration in the plane perpendicular to its axis of rotation when in use. The applied imbalance, combined with any static imbalance initially inherent in the tire/wheel assembly, results in a desired net static imbalance oriented so as to induce a centrifugal force which opposes, and therefore tends to cancel, at least one component, such as the first order harmonic, of radial force variation characterizing the assembly. The magnitude of the net static imbalance is limited and is preferably selected to substantially equal the lesser of either: (a) a predetermined maximum limit, or (b) the amount of static imbalance required to generate at a designated highway speed a centrifugal force whose magnitude substantially equals that of the aforementioned radial force variation component.

Abstract translation: 轮胎/车轮组件的质量被改变以对组件施加静态不平衡，以减少组件在使用时垂直于其旋转轴线的平面中引起振动的整体趋势。 应用的不平衡与轮胎/车轮组件中最初固有的任何静态不平衡结合导致所期望的净静态不平衡取向，以便引起离心力，所述离心力相对于因此倾向于抵消至少一个部件，例如 一阶谐波，表征组件的径向力变化。 净静态不平衡的大小是有限的，并且优选地被选择为基本上等于以下中的较小者：（a）预定的最大极限，或（b）以指定的公路速度产生离心力所需的静态不平衡量， 大小基本上等于上述径向力变化分量的大小。

公开(公告)号：US4805125A

公开(公告)日：1989-02-14

申请号：US62153

申请日：1987-06-12

Applicant: James C. Beebe

Inventor： James C. Beebe

IPC: G01M1/16 ,  G01M17/02

CPC classification number: G01M17/022

Abstract: Apparatus and methods for use in measuring the uniformity of a body such as a tire, wheel or the like wherein a waveform related to the uniformity of the body is digitally sampled to acquire a series of data samples, each of which is correlated with a respective physical location on the body. According to a first aspect of the invention, a non-repetitive error component of the waveform is corrected for by sampling the same location on the body at two different times and determining the difference between the corresponding data samples. A part of the total difference is allocated to each of the data samples in the series according to a predetermined methematical function which at least approximately describes the non-repetitive component of the waveform. The part of the difference allocated to each sample is then subtracted from it to obtain a corrected series of data sample. According to a second aspect of the invention, the maximum, minimum and/or peak-to-peak values of the waveform are more accurately determined by relating selected extreme data samples and one or more data samples adjacent thereto to a polynomial function of at least second order. The function is then evaluated at the location where its first derivative equals zero to determine a more accurate and repeatable approximation of a maximum, minimum or peak-to-peak value of the waveform. According to yet another aspect of the present invention the first and second aspects above are practiced in conjunction with one another.

Abstract translation: 用于测量诸如轮胎，车轮等的身体的均匀性的装置和方法，其中与身体的均匀性相关的波形被数字采样以获取一系列数据样本，每个数据样本与相应的 身体上的身体位置。 根据本发明的第一方面，通过在两个不同的时间对身体上的相同位置进行采样来校正波形的非重复误差分量，并且确定对应的数据样本之间的差异。 根据至少近似描述波形的不重复分量的预定的声学函数，将总差的一部分分配给系列中的每个数据样本。 然后从其中减去分配给每个样本的差值的一部分，以获得校正的一系列数据样本。 根据本发明的第二方面，通过将所选的极端数据样本和与其相邻的一个或多个数据样本与至少的多项式函数相关联来更准确地确定波形的最大值，最小值和/或峰 - 峰值 二级 然后在其一阶导数等于零的位置处评估该函数，以确定波形的最大值，最小值或峰 - 峰值的更精确和可重复的近似值。 根据本发明的另一方面，上述第一和第二方面是相互结合实施的。

公开(公告)号：US4702287A

公开(公告)日：1987-10-27

申请号：US899996

申请日：1986-08-22

Applicant: Robert E. Higbie ,  James C. Beebe

Inventor： Robert E. Higbie ,  James C. Beebe

IPC: B60S5/04 ,  G01M17/02 ,  G05D16/20 ,  B65B3/04

CPC classification number: G05D16/2046 ,  B60S5/046 ,  G01M17/02

Abstract: Apparatus for inflating tires to a test pressure. The apparatus includes a shop supply of air and a regulated supply of air. A valve system is used to connect the tire to the shop supply to seat the bead on the test rim; to exhaust the air from the tire to bring the pressure in the tire to approximately the test pressure; and to the regulated supply to bring the air in the tire to the preselected test level. The difference between the actual test pressure and the desired test pressure is measured and that difference is used to control the pressure regulator so as to correct the test pressure in the next succeeding tire.