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    VERFAHREN UND VORRICHTUNG ZUR OPTISCHEN FAHRWERKSVERMESSUNG
    1.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR OPTISCHEN FAHRWERKSVERMESSUNG 审中-公开
    方法和装置光学机箱MEASURING

    公开(公告)号：EP2147278A1

    公开(公告)日：2010-01-27

    申请号：EP08736176.2

    申请日：2008-04-14

    申请人： Robert Bosch GmbH

    发明人： NOBIS, Guenter ,  ABRAHAM, Steffen ,  SCHMIDTKE, Bernd ,  KNOLL, Christian ,  KALLMANN, Ulrich

    IPC分类号： G01B11/275

    CPC分类号： G01B11/2755 ,  G01B2210/14 ,  G01B2210/146 ,  G01B2210/20 ,  G01B2210/286

    摘要： The invention relates to a method for optically measuring an undercarriage and/or for dynamically testing undercarriage components of a motor vehicle (1). At least one wheel (2) and/or at least one section of the vehicle (1) is illuminated with a light pattern (15) of structured light by means of an illumination device (11), and the reflected light (4') is received by means of an imaging sensor unit (12, 13) and evaluated in an evaluation unit (16). The invention also relates to a device for carrying out the method. Even in suboptimal light conditions in the surrounding environments, a robust measurement is achieved because the structured light is emitted by the illumination device in a narrow band in a specified narrow emission wavelength range, and because the light is likewise detected by means of the sensor unit (12, 13) in a receiving wavelength range corresponding to the emission wavelength range and is evaluated in the evaluation unit (16), wherein foreign light influences are removed.

    VERFAHREN ZUM ERMITTELN DER DREHACHSE EINES FAHRZEUGRADES
    2.
    发明公开
    VERFAHREN ZUM ERMITTELN DER DREHACHSE EINES FAHRZEUGRADES 有权
    METHOD FOR车轮的确定旋转轴

    公开(公告)号：EP2079982A1

    公开(公告)日：2009-07-22

    申请号：EP07820445.0

    申请日：2007-09-21

    申请人： Robert Bosch GmbH

    发明人： ABRAHAM, Steffen ,  HAJA, Andreas ,  KNOLL, Christian ,  KALLMANN, Ulrich ,  HAPPOLD, Walter

    IPC分类号： G01B11/275

    CPC分类号： G01B11/2755 ,  G01B2210/146 ,  G01B2210/20 ,  G01B2210/28 ,  G01B2210/286

    摘要： The invention relates to a method for determining the axis of rotation of a vehicle wheel (2), wherein a light pattern (15) is projected at least onto the wheel (2) during rotation of the wheel (2) and the light pattern (15', 15'') reflected by the wheel (2) is recorded by a calibrated imaging sensor system and evaluated in an evaluation device. In order to achieve an exact and robust measurement of the axis of rotation and optionally of the axle and wheel geometries, especially of a wheel of a vehicle driving past, a wheel-related 3D point cloud (20) is determined during evaluation and a parametric surface model of the wheel (2) is adapted thereto. Normal vectors of the wheel are calculated for various rotational positions of the wheel (2) to obtain the wheel axes (22) and the spatial displacement of the normal vector (22) of the wheel is used to calculate the vector of the axis of rotation as the axis of rotation (24).

    VERFAHREN UND MESSANORDNUNG ZUM BESTIMMEN DER RAD- ODER ACHSGEOMETRIE EINES FAHRZEUGS
    5.
    发明公开
    VERFAHREN UND MESSANORDNUNG ZUM BESTIMMEN DER RAD- ODER ACHSGEOMETRIE EINES FAHRZEUGS 有权
    方法和测量器具，用于确定车轮或轮轴的车辆

    公开(公告)号：EP2329222A1

    公开(公告)日：2011-06-08

    申请号：EP09781092.3

    申请日：2009-07-27

    申请人： Robert Bosch GmbH

    发明人： GRUETZMANN, Andreas ,  ABRAHAM, Steffen ,  HAJA, Andreas ,  KNOLL, Christian ,  MUHLE, Daniel ,  GEBHARD, Matthias

    IPC分类号： G01B11/275

    CPC分类号： G01B11/275 ,  G01B2210/20 ,  G01B2210/26 ,  G01B2210/283

    摘要： The invention relates to a method for determining the wheel or axle geometry of a vehicle (2), comprising the following steps: illumination of a wheel region with structured and unstructured light during the movement (B) of at least one wheel (3) and/or the vehicle (2); capturing of several images of the wheel region during illumination to generate a three-dimensional surface model comprising surface parameters, a texture model with texture parameters and a movement model with movement parameters of the captured wheel region; calculation of values for the surface parameters, texture parameters and the movement parameters by a variation calculation in conjunction with the captured images for minimising a deviation of the three-dimensional surface, texture and movement model from the image data of the captured images; and determination of a rotational axis and/or a rotational centre of the wheel (3) depending on the calculated values of the movement parameters.