System and method for detecting abnormal state of velocity outputted from motor
US10153722B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2017 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | Apr 28, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/34013
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system includes a control module, a velocity-detecting module and a state-analyzing module. The control module generates a control command to control the servo drive system, and bases on the control command to define angular-acceleration standard ranges with respect to detection times. The velocity-detecting module detects output angular-velocity values of the servo motor with respect to detection times upon when the servo motor is driven. The state-analyzing module includes a processing unit and an abnormal-state judging unit. The processing unit stores the output angular-velocity values, and bases on the output angular-velocity values to calculate output angular-acceleration values with respect to the detection times. The abnormal-state judging unit determines whether or not each of the output angular-acceleration values with respect to each of the corresponding detection times is within the respective angular-acceleration standard range and thereby to generate corresponding comparison results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.