Method and inverter with thermal management for controlling an electric machine
US9698722B2 · kind B2 · utility
6Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2015 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jan 1, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/53875
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A temperature estimation module estimates each junction temperature of a corresponding semiconductor device, among a plurality of semiconductor devices, for each phase of an inverter. The temperature estimation module or the data processing system determines a hottest device with a highest junction temperature among the semiconductor devices. A thermal adjustment module or data processing system determines if the highest junction temperature parameter is less than maximum junction temperature parameter for the respective semiconductor device or deciding whether or not to adjust a duty cycle of the semiconductor devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.