Method of calculating motor position using hall sensor
US10720862B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 5, 2018 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Jan 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/072
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of calculating a motor position uses a hall sensor. The method can include determining a motor position in response to a signal change of a hall sensor installed to a motor, calculating a basic compensation value for compensating a motor position error due to signal measurement delay of the hall sensor, determining whether a current command condition for a constant-speed operation of the motor is satisfied, calculating a first-up compensation value and a first-down compensation value, calculating an average values of the deviation between d-q axes current commands, and correcting the motor position using the basic compensation value when a difference between the average values is less than a reference average value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.