FILTERING METHOD FOR IMPROVING THE DATA QUALITY OF GEOMETRIC TIRE MEASUREMENTS
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Accused Products
Abstract
A tire measurement system includes a computer with various memory/media elements for storing raw and transformed tire measurement data (e.g., a data set of measured radial or lateral run-out values) as well as software in the form of computer-executable instructions, which are executed by a processor to filter selected run-out values within the obtained data set that spike above adjacent measurements, identify selected ones of the filtered run-out values that lie on a convex hull surrounding the entire set of values, and perform interpolation of the identified selected ones of the run-out values that lie on the convex hull to obtain a final data set of filtered run-out measurements. Similar steps can be performed on an inverted data set to better detect sidewall deformation features such as sidewall depressions.
39 Citations
46 Claims
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27. A method of processing geometric measurements of a tire, comprising:
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measuring the surface of a tire to obtain an electronic data set of geometric measurements consisting of a plurality of parameter values at respective angular positions relative to the given tire; electronically identifying selected ones of the parameter values that lie on a convex hull surrounding the entire set of values; and electronically interpolating the identified selected ones of the parameter values that lie on the convex hull to obtain a final data set of filtered geometric measurements. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A tire measurement system for processing measurement characteristics associated with a given tire rotated at one or more predetermined speeds, said tire measurement system more particularly comprising:
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a first memory adapted for storing measurements, each measurement corresponding to a geometric parameter value obtained at an angular position relative to the given tire; a second memory adapted for storing software in the form of computer-executable instructions; and at least one processor coupled to said first and second memories and configured to selectively implement the computer-executable instructions stored in the second memory to process the measurements stored in the first memory; wherein said at least one processor implements the computer-executable instructions stored in said second memory in order to implement the functions of;
identifying selected ones of the geometric parameter values that lie on a convex hull surrounding the entire set of values, and interpolating the identified selected ones of the geometric parameter values that lie on the convex hull to obtain a final data set of filtered measurements. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46)
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Specification