Motor control unit and vehicle equipped therewith
US7663329B2 · kind B2 · utility
10Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2005 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Dec 25, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor unit and a vehicle equipped with the unit according to the invention includes a control unit that selects a switching frequency, that is, a carrier frequency, in accordance with a rotation speed of the motor and a torque required from a motor. When an inverter temperature becomes high, the control unit limits the torque of the motor to suppress further increase in the inverter temperature. A limit value used in restricted operation is determined in accordance with the temperature and the carrier frequency of the inverter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.