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Patent Searching and Data


Title:
ELECTRICAL MACHINE CONTROL METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2013/087246
Kind Code:
A3
Abstract:
Method for controlling an electrical machine (14), in particular for an electric or hybrid drive train (12) of a motor vehicle (10), wherein the electrical machine (14) can provide a torque (T) both at positive and at negative speeds (n), having the steps of: - using a characteristic curve (M; G) to check whether a torque desired value (72; 74) can or may be provided by the electrical machine (14), wherein the characteristic curve (M; G) represents a limit torque with respect to the speed (n) and has a first section (A1; A4) for positive speeds and a second section (A2; A3) for negative speeds. In this case, the first section (A1; A4) and the second section (A2; A3) are arranged in the same quadrant (I; IV) of the characteristic curve (70).

Inventors:
WIRTH MARTIN (FR)
SCHEIDLE ALEXANDER (DE)
Application Number:
PCT/EP2012/069746
Publication Date:
September 26, 2013
Filing Date:
October 05, 2012
Export Citation:
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Assignee:
BOSCH GMBH ROBERT (DE)
WIRTH MARTIN (FR)
SCHEIDLE ALEXANDER (DE)
International Classes:
H02P29/02; B60L15/20
Foreign References:
US20090026998A12009-01-29
Other References:
BEN-BRAHIM L ET AL: "Practical considerations for sensorless induction motor drive system", INDUSTRIAL ELECTRONICS SOCIETY, 1998. IECON '98. PROCEEDINGS OF THE 24 TH ANNUAL CONFERENCE OF THE IEEE AACHEN, GERMANY 31 AUG.-4 SEPT. 1998, NEW YORK, NY, USA,IEEE, US, vol. 2, 31 August 1998 (1998-08-31), pages 1002 - 1007, XP010308082, ISBN: 978-0-7803-4503-4, DOI: 10.1109/IECON.1998.724231
Attorney, Agent or Firm:
ROBERT BOSCH GMBH (Stuttgart, DE)
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