Rolling virtual wheel spindle calibration
First Claim
1. A method for detecting an occurrence of a movement deviation during a rolling movement of a wheel assembly across a supporting surface associated with a rolling compensation procedure of a vehicle service system, the method comprising:
- rolling the wheel assembly across the supporting surface to generate the rolling movement;
acquiring data associated with the wheel assembly at a plurality of positions across said supporting surface during the rolling movement;
processing said acquired data to obtain a set of values representative of a parameter associated with the wheel assembly in each of said plurality of positions across said supporting surface;
evaluating said set of parameter values to identify each value in said set of parameter values which deviated, during said rolling movement, from an expected value by more than an acceptable tolerance in response to a movement deviation by the wheel assembly; and
selecting, within a vehicle service procedure, an action in response to said evaluation identifying at least one deviated value.
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Accused Products
Abstract
A vehicle wheel alignment system and method is provided for performing a rolling wheel axis of rotation and wheel spindle point calculation every time an alignment is performed. Embodiments include an aligner having a target fixedly attachable to a wheel of the vehicle; a camera for viewing the target and capturing image data of the target; and a data processor. The data processor receives the image data from the camera, and determines a vector pointing from the target origin to a wheel spindle point based on the captured target image data, when the vehicle is rolled while the wheel is on a substantially flat surface such that the wheel and target rotate a number of degrees. The data processor is further adapted to calculate an alignment parameter for the vehicle based at least in part on the wheel axis of rotation and the coordinates of the wheel spindle point.
38 Citations
31 Claims
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1. A method for detecting an occurrence of a movement deviation during a rolling movement of a wheel assembly across a supporting surface associated with a rolling compensation procedure of a vehicle service system, the method comprising:
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rolling the wheel assembly across the supporting surface to generate the rolling movement; acquiring data associated with the wheel assembly at a plurality of positions across said supporting surface during the rolling movement; processing said acquired data to obtain a set of values representative of a parameter associated with the wheel assembly in each of said plurality of positions across said supporting surface; evaluating said set of parameter values to identify each value in said set of parameter values which deviated, during said rolling movement, from an expected value by more than an acceptable tolerance in response to a movement deviation by the wheel assembly; and selecting, within a vehicle service procedure, an action in response to said evaluation identifying at least one deviated value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for detecting variations in a surface supporting a rolling wheel assembly, comprising:
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rolling the wheel assembly across the surface to generate a rolling movement; acquiring spatial data associated with the rolling wheel assembly at a plurality of positions during the rolling movement; evaluating said spatial data to detect a change in a position or an orientation of the rolling wheel assembly exceeding an acceptable tolerance; and associating said detected change in said position or orientation with said surface supporting said rolling wheel assembly. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A vehicle service system, comprising:
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at least one sensor configured to acquire data associated with a wheel assembly on a vehicle at a plurality of rotational positions during a rolling movement across a supporting surface; a processing system configured to receive said acquired data from said at least one sensor, said processing system further configured with a set of software instructions to process said acquired data to obtain a sequence of values representative of at least one parameter associated with the wheel assembly in each of said plurality of rotational positions; said processing system further configured with software instructions to evaluate said sequence of values to identify at least one value which deviates during said rolling movement, from an expected value by more than a tolerance; and wherein said processing system is further configured with software instructions to respond to an identification of at least one deviating value. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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Specification