Method and apparatus for monitoring rotational position of an electric machine
US9093933B2 · kind B2 · utility
1Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2013 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Jan 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2203/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for monitoring an electric motor employing a pulse-type rotational position sensor includes monitoring a signal output from the pulse-type rotational position sensor and a reference signal associated with a control signal for the electric motor. A position of a rotor of the electric motor coincident with the reference signal is determined based upon a nominal rotor position, a nominal rotational speed of the rotor and a time between the reference signal and a falling edge of the signal output from the pulse-type rotational position sensor. The electric motor is controlled based upon the position of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.