Method for controlling wheel deformation and associated device and system
AssigneeALSTOM Holdings
InventorEric Bonin
Life of this patent
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Abstract
A method for controlling the deformation of a wheel includes obtaining, for multiple predefined angular positions on the wheel, a parameter characterizing an angular velocity of the wheel when the wheel is in contact with the running surface at each predefined angular position while the wheel is rolling on a running surface, and calculating a radius value of the wheel for each predefined angular position using the parameter characterizing the angular velocity obtained for that angular position.
Claims12
A method of detecting deformation of a wheel, the method comprising:
- while the wheel is rolling on a running surface, obtaining a parameter, for multiple predefined angular positions on the wheel, characterizing an angular velocity of the wheel when the wheel is in contact with the running surface at said predefined angular position;
- and
- calculating a radius value of the wheel for each predefined angular position using the parameter characterizing the angular velocity obtained for said angular position,
- wherein the parameter characterizing the angular velocity of the wheel is a direct time difference for the predefined angular position, the direct time difference is a time difference between detections of the edge of two teeth of a gear of the wheel,
- wherein the calculation of the radius value of the gear for said each predefined angular position uses a filtered time difference, wherein the filtered time difference is a weighted average of direct time differences for multiple predefined angular positions.
A device for detecting the deformation of a wheel, the device being arranged to be connected to a sensor configured to obtain, while the wheel is rolling on a running surface, for multiple predefined angular positions on the wheel, a parameter characterizing an angular speed of the wheel when the wheel is in contact with the running surface at said predefined angular position, the device comprising a calculation module of a radius value of the wheel for each predefined angular position using the parameter characterizing the angular speed obtained for said angular position,
- wherein the parameter characterizing the angular velocity of the wheel is a direct time difference for the predefined angular position, the direct time difference is a time difference between detections of the edge of two teeth of a gear of the wheel,
- wherein the calculation of the radius value of the gear for said each predefined angular position uses a filtered time difference, wherein the filtered time difference is a weighted average of direct time differences for multiple predefined angular positions.
Dependencies are inferred from the claim text.