Inverter device and electric vehicle
US9819299B2 · kind B2 · utility
3Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2014 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | May 21, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/904
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Provided are an inverter device deterring PWM voltage error even if high inverter output frequencies are used for overmodulation driving and an electric vehicle equipped with the inverter device. In an angular section where the output voltage from an inverter device is linearly approximated with the zero cross point as the center thereof, a PWM generator in the inverter device changes either the time interval between the centers of PWM ON pulses or the time interval between the centers of PWM OFF pulses depending on the inverter operation state. An electric vehicle is equipped with the inverter device, which drives a motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.