Method for distance calibration of machine vision vehicle service system

    公开(公告)号:US09986232B1

    公开(公告)日:2018-05-29

    申请号:US14695819

    申请日:2015-04-24

    Abstract: A method for distance calibration of machine vision optical targets and associated observing imaging sensors using separation distances between discrete surface measurement points. First, a spatial position for each surface point is established from a series of observations by the associated observing imaging sensor of the optical targets mounted to a calibration fixture. Second, measures of a linear separation distance between particular pairs of surface points are identified independently from the machine vision observations. All resulting spatial positions and measurements are conveyed to a processing system configured with a set of software instructions for carrying out distance calibration calculations to establish a set of refined distance calibration parameters associated with each combination of optical target and observing imaging sensor. During subsequent use of the machine vision vehicle service system, the parameters are retrieved and utilized to improve vehicle measurement precision.

    Method and apparatus for detection of wheel assembly slippage on a vehicle wheel balancer

    公开(公告)号:US09702780B2

    公开(公告)日:2017-07-11

    申请号:US14096990

    申请日:2013-12-04

    CPC classification number: G01M1/28 G01M1/326

    Abstract: A vehicle wheel balancer system having a processing system and a spindle shaft upon which a vehicle wheel assembly is mounted for measurement of imbalance characteristics and forces. The processing system is configured with software instructions to evaluate the remaining imbalance present in a vehicle wheel assembly following the application of imbalance correction weights, and to determine if the remaining imbalance is the result of the vehicle wheel assembly having deviated from an expected rotational position during the time between the measurement of the imbalance and the application of the imbalance correction weights. In the event of such a deviation, the processing system is further configured to provide the operator with a suitable warning to evaluate and correct the mounting of the vehicle wheel assembly before proceeding to rebalance or re-measure the vehicle wheel assembly.

    Method For Detecting Support Surface Variations During Wheel Alignment Rolling Compensation Procedure
    70.
    发明申请
    Method For Detecting Support Surface Variations During Wheel Alignment Rolling Compensation Procedure 审中-公开
    在车轮定位滚动补偿程序中检测支撑表面变化的方法

    公开(公告)号:US20160273914A1

    公开(公告)日:2016-09-22

    申请号:US15068299

    申请日:2016-03-11

    CPC classification number: G01B11/2755 G01B2210/20

    Abstract: A method for detecting the occurrence of deviations from level, straight-line rolling movement of a wheel assembly across a supporting surface during a rolling compensation procedure associated with a vehicle wheel alignment measurement or inspection system by identifying changes in measurements or calculated parameters associated with the wheel assembly which would be unchanged during an ideal level and straight-line rolling movement. Identified changes in the measurements or calculated parameters are evaluated to either warn an operator of the occurrence of a deviation, or to generate a correction factor to account for at least a portion of an effect which the deviations introduce into compensation calculations or subsequent wheel alignment measurements or service procedures.

    Abstract translation: 一种用于检测在与车轮对准测量或检查系统相关联的滚动补偿过程期间车轮组件跨支撑表面的水平,直线滚动运动的偏差的发生的方法,其通过识别测量结果的变化或与 在理想水平和直线滚动运动期间将不变的轮组件。 评估测量或计算参数中的识别的变化,以向操作者发出偏差的发生,或者产生校正因子以考虑偏差引入到补偿计算或随后的车轮对准测量中的至少一部分效果 或服务程序。

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