Motor control method and apparatus
US6805426B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Dec 25, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J19/207
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for controlling an operating speed of a motor provided to move an object body such as a carriage carrying a printing head in a printer, wherein a control-signal generating portion generates a control signal for controlling the speed of the motor such that a moving speed of the object body represented by a speed signal generated by a speed-signal generating portion coincides with a target value, and the control signal is generated on the basis of proportional and integral control values obtained on the basis of an output of a filter operable to remove from the speed signal a component having a frequency not lower than a predetermined threshold or at least a component corresponding to a cogging frequency of the motor, and a differential control value obtained on the basis of the output of the filter or the speed signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.