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US 11,906,397 B2Granted
Active backlash detection methods and systems
OwnerMartin E. Bestinventor
Life of this patent
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Abstract
Methods of and systems for actively detecting an increasing amount of backlash within a machine's mechanical power application to detect, predict, and estimate future mechanical failure.
Claims9
A system for detecting backlash in a device comprising:
- a controller;
- an actuator, wherein the controller measures, records and stores a movement information signal from the actuator;
- an actuator output element;
- at least one feedback device that measures, records, and stores movement information of the actuator input element;
- and
- at least one movement sensor for detecting movement information of the actuator output element;
- wherein the system is configured to:
- determine a calibration movement ratio for a device with respect to at least two parts in the device;
- collect baseline motion values for the at least two parts in the device during use;
- measure baseline motion values for the at least two parts in the device during use;
- collect active motion values for the at least two parts in the device;
- measure active motion values for the at least two parts in the device;
- compare the measured baseline motion values to the active motion values;
- compute a ratio of variance between the measured baseline motion values and the active motion values;
- and
- compare the calculated ratio of variance to the calibration movement ratio.
13 more elements
Dependencies are inferred from the claim text.