EP 3568910 A1 20191120 - METHOD FOR DETERMINING THE ROTATIONAL ANGULAR POSITION OF THE ROTOR OF A MULTIPHASE ELECTRIC MACHINE
Title (en)
METHOD FOR DETERMINING THE ROTATIONAL ANGULAR POSITION OF THE ROTOR OF A MULTIPHASE ELECTRIC MACHINE
Title (de)
VERFAHREN ZUR BESTIMMUNG DER DREHWINKELPOSITION DES ROTORS EINER MEHRPHASIGEN ELEKTRISCHEN MASCHINE
Title (fr)
PROCÉDÉ DE DÉTERMINATION DE LA POSITION ANGULAIRE DE ROTATION DE ROTOR D'UNE MACHINE ÉLECTRIQUE POLYPHASÉE
Publication
Application
Priority
- DE 102017100515 A 20170112
- DE 2018100009 W 20180109
Abstract (en)
[origin: WO2018130244A1] The invention relates to a method for determining the position of the rotor of a multiphase electric machine with pole windings (4), the inductances of which are uniquely connected to the rotational angular position of the rotor (2) in the currentless state at least within rotational angular periods. At at least one measurement point (7, 8) between pole windings (4), a measurement signal ((a1,as) which depends on the current inductances of the pole windings (4) and which is generated by voltage jumps (ΔUB) at a phase conductor input (R, S, T) is tapped. According to the invention, multiple measurement points (7, 8) are provided for tapping a signal, said measurement points being arranged collectively at one and the same phase conductor (4). For each measurement point, the respective phase conductor (R, S, T) with the lowest current operating current is selected.
IPC 8 full level
H02P 6/185 (2016.01); H02P 6/18 (2016.01); H02P 27/08 (2006.01)
CPC (source: EP US)
G01B 7/30 (2013.01 - US); H02P 6/185 (2013.01 - EP US); H02P 6/187 (2013.01 - EP); H02P 27/08 (2013.01 - EP)
Citation (search report)
See references of WO 2018130244A1
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 102017100515 A1 20180712; CN 110402537 A 20191101; EP 3568910 A1 20191120; US 2019386591 A1 20191219; WO 2018130244 A1 20180719
DOCDB simple family (application)
DE 102017100515 A 20170112; CN 201880006396 A 20180109; DE 2018100009 W 20180109; EP 18705311 A 20180109; US 201816477442 A 20180109