Vehicle electric motor closed-loop position holding control
US10910985B2 · kind B2 · utility
0Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2018 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Feb 4, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric drive system has a motor including a rotor, an inverter, and a controller. The controller perturbs a position of the rotor via a pulse width modulation (PWM) command to the inverter such that the motor receives an Id current that changes during the perturbing and an Iq current, and responsive to the Iq current settling at zero during the perturbing, alters the PWM command to cause the rotor to rotate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.