EP 2671319 A2 20131211 - METHOD, DEVICE, AND COMPUTER PROGRAM FOR DETERMINING AN OFFSET ANGLE IN AN ELECTRIC MACHINE
Title (en)
METHOD, DEVICE, AND COMPUTER PROGRAM FOR DETERMINING AN OFFSET ANGLE IN AN ELECTRIC MACHINE
Title (de)
VERFAHREN, VORRICHTUNG UND COMPUTERPROGRAMM ZUM ERMITTELN EINES OFFSETWINKELS IN EINER ELEKTROMASCHINE
Title (fr)
PROCÉDÉ, DISPOSITIF ET PROGRAMME INFORMATIQUE POUR DÉTERMINER UN ANGLE DE DÉCALAGE DANS UN MOTEUR ÉLECTRIQUE
Publication
Application
Priority
- DE 102011003500 A 20110202
- DE 102012201319 A 20120131
- EP 2012051753 W 20120202
Abstract (en)
[origin: WO2012104372A2] The invention relates to a method and device for determining or checking the plausibility of an offset angle between an assumed orientation and an actual orientation of a rotor (20) relative to a stator (10) in an electric machine (1). In the method, the electric machine is first controlled in a quasi zero-current state, in which substantially no current should flow in the windings of the electric machine. Then a voltage indicator that specifies the direction of a voltage controlled in the electric machine during the quasi zero-current state is determined and subsequently transformed into a coordinate system that is fixed with respect to the rotor. The offset angle or an angle error with respect to a previously assumed, calibrated offset angle can be determined on the basis of the transformed voltage indicator.
IPC 8 full level
H02P 25/02 (2006.01)
CPC (source: EP KR US)
B60L 15/025 (2013.01 - EP US); H02P 6/18 (2013.01 - KR); H02P 6/182 (2013.01 - US); H02P 21/32 (2016.02 - EP US); H02P 25/02 (2013.01 - KR); H02P 2203/03 (2013.01 - EP US); Y02T 10/64 (2013.01 - EP US)
Citation (search report)
See references of WO 2012104372A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102012201319 A1 20120802; CN 103329426 A 20130925; EP 2671319 A2 20131211; KR 20140007831 A 20140120; US 2014055068 A1 20140227; WO 2012104372 A2 20120809; WO 2012104372 A3 20130523
DOCDB simple family (application)
DE 102012201319 A 20120131; CN 201280007296 A 20120202; EP 12703281 A 20120202; EP 2012051753 W 20120202; KR 20137020418 A 20120202; US 201213983258 A 20120202