Control system and control method
US10998846B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2018 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | May 17, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control method and a control system, by which a motor can be controlled. The control system includes a central processing module and a drive control module. In a period in which a voltage is not applied to any phase coil of the motor, the drive control module collects voltages of the coil to which the voltage is not applied, and converts the voltages of the coil into digital signals. The central processing module reads the digital signals and determines whether the running speed of the motor is consistent with a preset speed depending on whether an average value of the digital signals falls within a preset threshold range, which helps to improve the control precision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.