EP 4208942 A1 20230712 - METHOD FOR MODULATING THE TORQUE RIPPLE AND/OR THE RADIAL FORCE OF A THREE-PHASE CURRENT-OPERATED ELECTRIC MACHINE
Title (en)
METHOD FOR MODULATING THE TORQUE RIPPLE AND/OR THE RADIAL FORCE OF A THREE-PHASE CURRENT-OPERATED ELECTRIC MACHINE
Title (de)
VERFAHREN ZUR MODULATION DER DREHMOMENTWELLIGKEIT UND/ODER DER RADIALKRAFT EINER DREHSTROMBETRIEBENEN ELEKTRISCHEN MASCHINE
Title (fr)
PROCÉDÉ DE MODULATION DE L'ONDULATION DE COUPLE ET/OU DE LA FORCE RADIALE D'UNE MACHINE ÉLECTRIQUE À COURANT TRIPHASÉ
Publication
Application
Priority
- DE 102020122099 A 20200904
- DE 2021100680 W 20210810
Abstract (en)
[origin: WO2022048704A1] The invention relates to a method for modulating the torque ripple and/or the radial force of a three-phase current-operated electric machine (10), in particular of an electric drive machine of a motor vehicle able to be driven by an electric motor, comprising the following method steps: - selecting at least one harmonic (HM1_EM) in the torque of the electric machine (10) and/or selecting at least one harmonic (HM_X) of a load (20) coupled to the electric machine (10), wherein the at least one selected harmonic (HM1_EM, HM_X) is modulated by applying the at least one selected harmonic (HM1_EM, HM_X) to the d-current and/or q-current or to a variable correlated therewith in order to generate a setpoint variable (w) for driving the electric machine (10), wherein the phase angle of the harmonic in the d-current (Id) and/or of the harmonic in the q-current (Iq) with respect to the rotor angle is at least temporarily set to be different.
IPC 8 full level
H02P 6/10 (2006.01); H02P 29/50 (2016.01)
CPC (source: EP US)
H02P 6/10 (2013.01 - EP); H02P 21/05 (2013.01 - US); H02P 21/22 (2016.02 - US); H02P 29/50 (2016.02 - EP US); H02P 2101/45 (2015.01 - US); H02P 2103/20 (2015.01 - US); H02P 2205/01 (2013.01 - US)
Citation (search report)
See references of WO 2022048704A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102020122099 A1 20220310; CN 116034537 A 20230428; EP 4208942 A1 20230712; US 2023336107 A1 20231019; WO 2022048704 A1 20220310
DOCDB simple family (application)
DE 102020122099 A 20200904; CN 202180054118 A 20210810; DE 2021100680 W 20210810; EP 21762595 A 20210810; US 202118024348 A 20210810