Method and apparatus for controlling an induction machine
US6445079B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2001 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Mar 3, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P9/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical machine (10) suitable for use as a starter/alternator for an automotive vehicle, has an inverter circuit (12), a rectifier circuit (14), and a stator circuit (16) that couples the inverter circuit (12) to the rectifier circuit (14). In addition, a switch circuit (18) having a first switch, switch A, and a second switch, switch B, is used to couple inverter circuit (12) to rectifier circuit (14). By controlling the operation of switch circuit (18) so that in a start up mode the switches are closed and in a generating mode the switches are open, a high output torque may be obtained from the electrical machine while a wide operating speed range may be also achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.