Abstract: Optical chassis measurement of motor vehicles is carried out by a measuring arrangement equipped with at least one measuring device, in which one or more image capturing devices associated with one another in terms of their position and location record the surface geometry of a vehicle or measurement points arranged on the vehicle, carry out a referencing and/or orientation of the at least one measuring device in relation to the measuring station with reference features that are arranged at particular measuring station coordinates in the measuring station and, based on orientation data and/or association data obtained and based on measurement data obtained during execution of the axle measurement, an evaluation is carried out in an evaluation unit in order to ascertain chassis data.

Abstract: A method and an apparatus for assessing the play in bearings or joints of components coupled to one another, in particular wheel suspension or steering components of a motor vehicle. A simple automatic detection of the play is performed by providing that the components are subjected to alternating forces, and their positions at various times and/or their motions are detected optically, directly or indirectly, and from the detected position and/or motion data, a statement about the play is derived.

Abstract: A device for determining the wheel and axle geometry of motor vehicles in an inspection room using an optical measuring device having at least one optical image pick-up device from at least two different perspectives, having a marking device, which includes a measuring feature arrangement existing or arranged on the wheel, and having an evaluation device. The determining the geometrical wheel and axle data is simplified in that the marking device has at least one reference feature arrangement including at least three reference features per image recording position; that the inspection room is defined between the reference feature arrangement(s) and the base plane of the measuring station; that the position of the reference features in the inspection room is known in the evaluation device; and that the measuring feature arrangement includes at least three measuring features per wheel.

Abstract: A device for determining the wheel and/or axle geometry of motor vehicles in an inspection room using an optical measuring device having at least two image pick-up devices, which, from at least two different perspectives, record images from a marking device (or optical target), inclusive of at least one wheel feature arranged on each wheel, and including an evaluation device. The marking device further includes an automobile body feature and a reference feature arrangement, including at least three reference features for use in obtaining geometrical wheel and axle data. The inspection room is defined between the reference feature arrangement and the driving surface plane. The position of the reference features in the inspection room is known or stored in the evaluation device. The marking device is detected while the motor vehicle is being driven past.