A method of assessing a condition of a wheel on a vehicle is provided and includes driving the vehicle in a generally longitudinal direction; contactlessly determining a distance to a first location on the wheel; contactlessly determining a distance to a second location on the wheel at a second time that is later than the first time; determining an indication of a tire-wearing angle for the wheel based on the distance to the first location and the distance to the second location; and outputting the indication of the tire wearing angle for the wheel.

A method for contactless measurements of a vehicle wheel assembly by acquiring a sequence of images as the vehicle wheel assembly moves within a projected pattern of light. Images of the vehicle wheel assembly are acquired and processed to identify the portions of the images corresponding to the wheel assembly, such as by recognition of the wheel rim edge. The identified portion of each image is cropped and a resulting point cloud of data rotational aligned by an optimization procedure to remove the effect of wheel translation and rotation between each image, as well as to identify a center of rotation and amount of rotation for each image which yields a best-fit result. Superimposing the resulting point clouds produces a generated image with a high density of data points on the optimally fit surfaces of the wheel assembly, which can be used to further refine the axis of rotation determination.

A device for checking the wheel suspension of a vehicle, in particular, of a motor vehicle, includes: a device for determining the wheel normals and/or the center of rotation of a wheel of the vehicle; a device for determining the movement trajectory of the wheel normals and/or of the center of rotation of the wheel during a movement of the vehicle; and a comparison and evaluation device, which is configured to compare the determined movement trajectory of the wheel normals and/or of the center of rotation of the wheel to a predefined movement trajectory, and to output a defect message when the deviation of the determined movement trajectory from the predefined movement trajectory exceeds a predefined limiting value.