Title:
PERMANENT-MAGNET-EXCITED ELECTRIC MACHINE OPERATED WITHOUT A SENSOR, IN PARTICULAR FOR A FUEL CELL UNIT OF A MOTOR VEHICLE, AND A METHOD OF OPERATING A PERMANENT-MAGNET-EXCITED ELECTRIC MACHINE OPERATED WITHOUT A SENSOR
Document Type and Number:
WIPO Patent Application WO/2009/106223
Kind Code:
A3
Abstract:
The invention relates to a permanent-magnet-excited electric machine (1) operated without a sensor, in particular for a fuel cell unit of a motor vehicle, in particular an automobile, having a stator (2) comprising a stator winding (3) and a rotor mounted rotationally movably relative to the stator (2), which rotor comprises at least one permanent magnet with a north pole region and a south pole region, and having an open- and/or closed-loop control means (5), which is coupled to the stator winding (3) and is designed to energize the stator winding (3), wherein the open- and/or closed-loop control means (5) is designed to energize the stator winding (3) when the electric machine (1) is at a standstill and the rotor may be fixed in a neutral angular position other than a dead center position as a result of said energization when at a standstill.
Inventors:
KNOOP ANDREAS (DE)
BADER MICHAEL (DE)
BADER MICHAEL (DE)
Application Number:
PCT/EP2009/000896
Publication Date:
November 18, 2010
Filing Date:
February 10, 2009
Export Citation:
Assignee:
DAIMLER AG (DE)
FORD GLOBAL TECH LLC (US)
KNOOP ANDREAS (DE)
BADER MICHAEL (DE)
FORD GLOBAL TECH LLC (US)
KNOOP ANDREAS (DE)
BADER MICHAEL (DE)
International Classes:
H02P6/08; B60L7/24; B60L11/18; F16D65/28; H02P1/02; H02P3/18; H02P3/24; H02P6/18; H02P6/20
Foreign References:
| US6160367A | 2000-12-12 | |||
| DE102004037584A1 | 2006-02-23 | |||
| US20090256507A1 | 2009-10-15 |
Attorney, Agent or Firm:
KOCHER, Klaus-Peter et al. (Intellectual Property and Technology ManagementGR/V, H512 Stuttgart, DE)
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