Motor control apparatus
US10108182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2016 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Apr 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/45033
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control unit includes a position command generation unit generating a position command, a position control unit outputting a first speed command such that detected position tracks the position command, a pressure command generation unit generating a pressure command, a pressure control unit outputting a second speed command such that detected pressure or force tracks the pressure command, a speed command selection unit selecting creep speed, the first speed command, or the second speed command and outputs it as a speed command for the motor to operate; and a speed control unit outputting a current command for supplying current to the motor such that the motor speed tracks the speed command output by the speed command selection unit. After selecting the first speed command, the speed command selection unit selects the second speed command or the creep speed at timing when the first speed command falls below the creep speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.