Abstract: A wheel clamp (2) for fastening to a wheel (1), in particular to a wheel (1) of a motor vehicle, comprises at least two arms (22, 23, 24) which extend outward from a center (28) of the wheel clamp (2) in a radial direction. Each of the arms (22, 23, 24) has at least one movable element (32, 33, 34) which is movable in the radial direction. The wheel clamp (2) comprises a locking member (82) which is designed such that the movable elements (32, 33, 34), by operation of the locking member (82), can be fixed such that the movable elements (32, 33, 34) are no longer movable in the radial direction. The wheel clamp (2) also comprises an unlocking member (84) which is designed such that a fixation of the movable elements (32, 33, 34) can be released by operation of the unlocking member (84).

Abstract: A wheel holder (2) for fastening to a wheel (1), in particular to a wheel (1) of a motor vehicle, comprises at least two arms (22, 23, 24) extending outward from a center (28) of the wheel holder (2) in a radial direction; each of the arms (22, 23, 24) having at least one movable element (32, 33, 34) that is movable in the radial direction; a rotation element (40) that is arranged in the center (28) of the wheel holder (2) such that it can rotate; at least two coupling elements (52, 53, 54) each extending between one of the movable elements (32, 33, 34) and the central rotation element (40) such that the movable elements (32, 33, 34) are movable in the radial direction by rotation of the rotation element (40); and at least one drive device (63, 64) which is connected to one of the movable elements (32, 33, 34) via a force transmitting element (73, 74) and which is designed to apply, via the force transmitting element (73,74), a force to the movable element (32, 33, 34) that is directed towards the center (28)

Abstract: A wheel holder for fastening to a wheel comprises at least two arms extending outward from a base plate of the wheel holder radially; each of the arms having at least one movable element that is movable radially; a central rotation element that is arranged in the center of the wheel holder such that it can rotate; and at least two coupling elements each extending between one of the movable elements and the central rotation element such that the movable elements are movable radially by rotation of the rotation element. The rotation element is attached to the base plate of the wheel holder via a freewheeling system. The freewheeling system has at least one operating state in which the rotation element is rotatable in a freewheeling direction and rotation of the rotation element in a blocking direction opposite to the freewheeling direction is blocked.

Abstract: A wheel clamp (2) for fastening to a wheel (1), in particular to a wheel (1) of a motor vehicle, comprises at least two arms (22, 23, 24) which extend outward from a center (28) of the wheel clamp (2) in a radial direction. Each of the arms (22, 23, 24) has at least one movable element (32, 33, 34) which is movable in the radial direction. The wheel clamp (2) comprises a locking member (82) which is designed such that the movable elements (32, 33, 34), by operation of the locking member (82), can be fixed such that the movable elements (32, 33, 34) are no longer movable in the radial direction. The wheel clamp (2) also comprises an unlocking member (84) which is designed such that a fixation of the movable elements (32, 33, 34) can be released by operation of the unlocking member (84).

Abstract: A wheel clamp (2) for fastening to a wheel (1), in particular to a wheel (1) of a motor vehicle, comprises at least two arms (22, 23, 24) which extend outward from a center (28) of the wheel clamp (2) in a radial direction, and a central rotary element (40) which is rotatably arranged in the center (28) of the wheel clamp (2). Each arm (22, 23, 24) has at least one movable element (32, 33, 34) which is movable in the radial direction in order to permit varying the length of the arm (22, 23, 24) in the radial direction. The wheel clamp (2) comprises furthermore at least two coupling elements (52, 53, 54) which each extend between one of the movable elements (32, 33, 34) and the central rotary element (40) such that the movable elements (32, 33, 34) are movable in the radial direction by rotation of the rotary element (40).

Abstract: A system and a method for performing adjustment operations on a motor vehicle, in particular during an axle measurement, having at least one camera for recording images of one or more vehicle detail(s), a data-processing unit for processing the images recorded by the camera, a memory, which includes documentation and/or image information about adjustment operations on motor vehicles, a playback device for displaying documentation and/or images and/or image information, and an axle-measuring device, which supplies data pertaining to the measuring of the motor vehicle to the data-processing unit.

Abstract: A measuring station system for calibrating a reference system for vehicle measurement has at least one image recording device, a calibration device having multiple calibration device reference features, and a calibration frame having at least three support points which are designed for accommodating a reference system carrier for the reference system to be calibrated. The calibration frame has at least three calibration frame reference features. The positions of the support points and of the calibration frame reference features in a shared coordinate system are known.

Abstract: An apparatus for measuring the running gear of a motor vehicle includes: a left measuring unit for positioning on a left side of the motor vehicle, in such a way that a measurement target on a left front wheel and a measurement target on a left rear wheel of the motor vehicle can be sensed from the left measuring unit; a right measuring unit for positioning on a right side of the vehicle, in such a way that a measurement target on a right front wheel and a measurement target on a right rear wheel of the motor vehicle can be sensed from the right measuring unit; and an evaluation device embodied to identify the vehicle geometry data from images of the measurement targets of the front wheels and of the measurement targets of the rear wheels by way of a comparison with reference images of the measurement targets.

Abstract: A method for checking the correct positioning of a vehicle on a measuring station for vehicle measurement includes: a) taking images of at least two tires of the vehicle; b) identifying features, in the images taken, which describe at least one area of the respectively recorded tire; c) fitting a mathematical model to the identified features; d) determining the extent of the flattening of each tire from the fitted mathematical model; e) comparing the flattening of the at least two tires.

Abstract: A method for adjusting and/or calibrating a surroundings sensor in a vehicle using a measuring unit and a calibration panel.

Abstract: A method for checking the correct positioning of a vehicle on a measuring station for vehicle measurement includes: a) taking images of at least two tires of the vehicle; b) identifying features, in the images taken, which describe at least one area of the respectively recorded tire; c) fitting a mathematical model to the identified features; d) determining the extent of the flattening of each tire from the fitted mathematical model; e) comparing the flattening of the at least two tires.

Abstract: A calibration frame for calibrating a reference system for vehicle measurement has setting elements, which enable a precise spatial orientation of the calibration frame, and multiple defined points of support, which are designed to accommodate a reference system carrier. In one specific embodiment, the points of support are designed in such a way that the reference system carrier is situatable on the points of support in at least two different orientations. In a second specific embodiment, a leveling element is provided which indicates the spatial orientation of the calibration frame in relation to the earth's gravitation field.

Abstract: A method for calibrating a vehicle surroundings sensor (15) includes the steps of attaching at least one target pair (20, 22) to the rear wheels (12, 14) of a motor vehicle (7); recording the target pair (20, 22) using at least one measuring unit (32, 46) and determining the vehicle axis (64) from the recording; placing a target (16, 18) in a known position relative to a vehicle surroundings sensor adjustment or calibration element (62); fastening at least one measuring unit (32, 46) by means of fastening adapters (34, 48) to a running rail (4, 6); recording the target (18) placed on the vehicle surroundings sensor adjustment and determining the angular position of the vehicle surroundings sensor adjustment or calibration element (62) relative to the vehicle axis (64); aligning the vehicle surroundings sensor adjustment or calibration element (62) relative to the vehicle axis (64); and adjusting the vehicle surroundings sensor (15) relative to the vehicle axis (64).

Abstract: A method and a device are provided for the optical axle alignment of wheels of a motor vehicle. At the wheels that are to be aligned, targets are mounted, having optically recordable marks, the targets being recordable by measuring units that have stereo camera devices. In a referencing process, using a referencing device that is integrated into the measuring units, a measuring position reference system is established for the measuring units. In a calibration process, in which a local 3D coordinate system is established using at least three marks of the target, the determination of a reference plane is carried out, using a significant mark of the target. Finally, using the reference plane, a vehicle longitudinal center plane is ascertained, while taking into account the measuring location reference system.

Abstract: An apparatus for measuring the running gear of a motor vehicle includes: a left measuring unit for positioning on a left side of the motor vehicle, in such a way that a measurement target on a left front wheel and a measurement target on a left rear wheel of the motor vehicle can be sensed from the left measuring unit; a right measuring unit for positioning on a right side of the vehicle, in such a way that a measurement target on a right front wheel and a measurement target on a right rear wheel of the motor vehicle can be sensed from the right measuring unit; and an evaluation device embodied to identify the vehicle geometry data from images of the measurement targets of the front wheels and of the measurement targets of the rear wheels by way of a comparison with reference images of the measurement targets.

Abstract: A measuring station system for calibrating a reference system for vehicle measurement has at least one image recording device, a calibration device having multiple calibration device reference features, and a calibration frame having at least three support points which are designed for accommodating a reference system carrier for the reference system to be calibrated. The calibration frame has at least three calibration frame reference features. The positions of the support points and of the calibration frame reference features in a shared coordinate system are known.

Abstract: A method for calibrating a measuring system for measuring a vehicle, including a measuring plane for accommodating a vehicle to be measured and two measuring sensors, each of the measuring sensors having at least two camera systems, includes: positioning at least four measuring panels on the measuring plane; orienting the measuring sensors such that at least one measuring panel is in view of each camera system, and each measuring panel is in view of at least one camera system; carrying out a first measuring step of recording images of the measuring panels; interchanging the two measuring sensors; carrying out a second measuring step of recording images of the measuring panels; determining and comparing positions of the measuring panels recorded in the first and second measuring steps; and calculating at least one correction value from the difference between the positions recorded in the first and second measuring steps.