Method for predicting and compensating frictions of feed system, and computer readable storage
US11561530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2020 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Jan 16, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41161
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for predicting and compensating frictions of a feed system includes following steps: constantly obtaining current signals and angle-position signals of a motor by a motor driver of a feed system after being activated; calculating frictions of the motor upon each rotating position according to the obtained current signals and angle-position signals and generating multiple records of friction data; creating a friction model according to the multiple records of friction data and the angle-position signals each respectively corresponding to each record of friction data with respect to each rotating position; importing current angle-position signal of the motor to the friction model for predicting a predicted friction; calculating a compensation current based on the predicted friction; and, controlling the motor driver to additionally provide the compensation current to the motor for conquering an upcoming friction of the feed system approximate to the predicted friction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.