Motor operating region based random pulse width modulation
US10538169B2 · kind B2 · utility
1Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2018 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jun 4, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle includes a traction motor having resonance frequency zones, an inverter including switches arranged to drive the traction motor, and a controller. The controller operates the switches only within specified sets of carrier frequencies such that noise side bands corresponding to the carrier frequencies fall outside the resonance frequency zones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.