Motor driving control device and motor driving control method
US10153715B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2018 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | Feb 7, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor driving control device includes: a motor driving unit for selectively energizing coils of a plurality of phases of a motor; a control circuit unit for outputting a driving control signal to the motor driving unit to control an operation of the motor driving unit; and a position detector corresponding to one phase out of the plurality of phases, the position detector outputting a position signal having a phase varying according to a position of a rotor of the motor, wherein when starting activation of the motor, the control circuit unit executes first control for causing the motor to perform short-circuit braking, and second control for starting a first lock operation in which the rotor is locked by energizing coils of a predetermined energization phase out of the plurality of phases with a first current value after the first control is executed, and when executing the first control, the control unit performs the short-circuit braking from the start of the short-circuit braking of the motor until variation of a predetermined pattern of the phase of the position signal has not been detected over a first predetermined time, or from the start of the short-circuit braking of the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.