ClassID:

218469

H02P27/12 - CPC Classification

Classification description:

Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation pulsing by guiding the flux vector, current vector or voltage vector on a circle or a closed curve, e.g. for direct torque control

Recent Application in this class:
#1
20260100664
2026-04-09

6-STEP/LINEAR MODULATION HYBRID CONTROL METHOD

#2
20260019022
2026-01-15

CONTROL APPARATUS FOR THREE-LEVEL INVERTER

#3
20260005629
2026-01-01

MOTOR CONTROL DEVICE

#4
20250392240
2025-12-25

METHOD OF CONTROLLING MOTOR RESTART IN SENSORLESS CONTROL IN A POWER TOOL

#5
20250364933
2025-11-27

METHOD, CONTROLLER AND COMPUTER PROGRAM FOR OPERATING AN INVERTER, AND INVERTER SYSTEM

#6
20250350221
2025-11-13

SURFACE-MOUNTED PERMANENT MAGNET MOTOR CONTROL USING CALCULATED REFERENCE CURRENT AND VOLTAGE

#7
20250309802
2025-10-02

SEMICONDUCTOR DEVICE AND MOTOR CONTROL PROGRAM

#8
20250274067
2025-08-28

INVERTER DRIVING DEVICE AND METHOD OF CONTROLLING SAME

#9
20250260353
2025-08-14

MOTOR CONTROL DEVICE

#10
20250253790
2025-08-07

POWER TOOL

#11
20250239956
2025-07-24

METHOD AND SYSTEM FOR PULSED OPERATION OF AN INDUCTION ELECTRIC MACHINE

#12
20250219564
2025-07-03

MOTOR DRIVE DEVICE AND REFRIGERATION CYCLE APPARATUS

#13
20250219560
2025-07-03

POWER CONVERSION APPARATUS, MOTOR DRIVE APPARATUS, AND REFRIGERATION CYCLE APPLICATION DEVICE

#14
20250219559
2025-07-03

POWER CONVERSION APPARATUS, MOTOR DRIVE UNIT, AND REFRIGERATION CYCLE APPLICATION APPARATUS

#15
20250158554
2025-05-15

MOTOR CONTROL DEVICE, HYBRID SYSTEM, MECHANICALLY AND ELECTRICALLY INTEGRATED UNIT, AND ELECTRIC VEHICLE SYSTEM

#16
20250153586
2025-05-15

INTEGRATED VARIABLE FLUX MEMORY MOTOR CHARGER

#17
20250132710
2025-04-24

CONTROL DEVICE OF ROTATING MACHINE, AND ELECTRIC POWER STEERING DEVICE

#18
20250132709
2025-04-24

SYSTEMS AND METHODS FOR CURRENT SENSING IN MOTOR CONTROL APPLICATIONS

#19
20250030371
2025-01-23

Motor Control Apparatus, Motor Drive Apparatus, and Device Using Same

#20
20240396480
2024-11-28

AC ROTARY MACHINE CONTROLLER, VEHICLE DRIVING APPARATUS, AND ELECTRIC POWER STEERING APPARATUS

#21
20240367552
2024-11-07

ALTERNATING CURRENT ZERO TORQUE RESISTANCE HEATING

#22
20240359566
2024-10-31

Rotary permanent magnet electrodynamic suspension device and permanent magnet electrodynamic suspension method using the same

#23
20240339945
2024-10-10

Electric motor control method and electric motor control device

#24
20240297606
2024-09-05

MOTOR DEVICE WITH CARRIER SIGNAL FOR POWER SUPPLY

#25
20240291418
2024-08-29

Motor apparatus and method for driving motor apparatus

#26
20240283385
2024-08-22

MOTOR DRIVE SYSTEM, CHARGING METHOD AND VEHICLE

#27
20240223119
2024-07-04

MOTOR DRIVING APPARATUS AND METHOD OF CONTROLLING THE SAME

#28
20240204707
2024-06-20

VARIABLE SPEED DRIVE CONTROL

#29
20240088817
2024-03-14

METHOD AND SYSTEM FOR CONTROLLING AN INVERTER FOR AN ELECTRIC MACHINE

#30
20240063746
2024-02-22

Controller for rotary machine

#31
20240063708
2024-02-22

POWER CONVERTER, MOTOR DRIVING APPARATUS, AND REFRIGERATION CYCLE APPLIED APPARATUS

#32
20240039447
2024-02-01

Motor driving apparatus

#33
20240039439
2024-02-01

Motor control apparatus, motor, compressor, refrigeration apparatus and vehicle

#34
20240022192
2024-01-18

AC MOTOR CONTROL DEVICE AND DRIVE SYSTEM EQUIPPED WITH SAME

#35
20240007038
2024-01-04

ELECTRIC MOTOR CONTROL METHOD, ELECTRIC MOTOR, AND COMPUTER-READABLE STORAGE MEDIUM

#36
20230396199
2023-12-07

Power tool

#37
20230396198
2023-12-07

Electrical power conversion apparatus

#38
20230378898
2023-11-23

Multi-phase permanent magnet rotor motor with independent phase coil windings

#39
20230370010
2023-11-16

Ventilation blower

#40
20230344374
2023-10-26

MOTOR CONTROL APPARATUS AND VEHICLE HAVING THE SAME

#41
20230216438
2023-07-06

Double winding electric machine assembly

#42
20230208329
2023-06-29

Predictive control method of current increment for permanent magnet synchronous motor under high-speed operation

#43
20230163707
2023-05-25

System and method of wiper electric drive control using four quadrant operation

#44
20230155529
2023-05-18

SYNCHRONOUS MACHINE CONTROL DEVICE, SYNCHRONOUS MACHINE CONTROL METHOD, AND ELECTRIC VEHICLE

#45
20230116678
2023-04-13

Motor control device and steering system

#46
20230107710
2023-04-06

Position control device

#47
20230079985
2023-03-16

Control device for multi-phase rotating machine

#48
20230078403
2023-03-16

System and method of a robust startup and stop scheme for position sensorless control of an electric machine

#49
20230070195
2023-03-09

Multi-phase permanent magnet rotor motor with independent phase coil windings

#50
20220416702
2022-12-29

Detecting motor stall condition

#51
20220399842
2022-12-15

HIGH PERFORMANCE CURRENT SENSING ARCHITECTURE FOR BRUSHLESS MOTORS

#52
20220368267
2022-11-17

Motor control method and motor control apparatus

#53
20220368247
2022-11-17

Model predictive pulse pattern control based on small-signal pulse pattern optimization

#54
20220345060
2022-10-27

Motor control device, electromechanical integrated unit, and electric vehicle system

#55
20220337183
2022-10-20

Catch spin method for permanent magnet synchronous motor with sensorless field oriented control

#56
20220315099
2022-10-06

Motor control device and steering system having the same

#57
20220294376
2022-09-15

Electric machine with integrated point field detectors and system for multi-parameter sensing

#58
20220263444
2022-08-18

Method for operating a synchronous motor excited by permanent magnets, electronic control device, motor arrangement, and storage medium

#59
20220255479
2022-08-11

FIELD-ORIENTED SENSORLESS BRUSHLESS MOTOR CONTROL IN A POWER TOOL

#60
20220247336
2022-08-04

Motor controller with stall detection

#61
20220247334
2022-08-04

Method for noise reduction of a three-phase-driven electrical machine

#62
20220234472
2022-07-28

SYSTEMS AND METHODS FOR PRE-HEATING BATTERIES

#63
20220224273
2022-07-14

Multiphase induction motor drive for gearless electric vehicles

#64
20220223937
2022-07-14

System and method for resonant heating battery

#65
20220209713
2022-06-30

Hybrid solar/motor drive inverter

#66
20220209697
2022-06-30

Control device for rotating electric machine and drive system

#67
20220200509
2022-06-23

Current monitor circuit, corresponding system and method

#68
20220185370
2022-06-16

Motor control device, control method, motor module, and electric power steering apparatus

#69
20220166363
2022-05-26

Motor controller, motor system and method for controlling motor

#70
20220134890
2022-05-05

Motor drive device and electric vehicle system

#71
20220123676
2022-04-21

Motor drive control device and motor drive control method

#72
20220115973
2022-04-14

Motor driving apparatus and refrigeration cycle equipment

#73
20220115971
2022-04-14

Systems and methods for motor parameter extraction

#74
20220103105
2022-03-31

Power detecting device and method thereof

#75
20220060131
2022-02-24

Control method and associated control system

#76
20220045638
2022-02-10

Systems and methods for performing motor control operations agnostic of speed data

#77
20220006406
2022-01-06

Power tool

#78
20210399664
2021-12-23

Double virtual voltage vectors predictive torque control method without weighting factor for five-phase permanent magnet synchronous motor

#79
20210384857
2021-12-09

Motor control device

#80
20210384856
2021-12-09

Autonomous apparatus

#81
20210351732
2021-11-11

Devices, systems, and methods for self-heating batteries

#82
20210336577
2021-10-28

Motor control circuit

#83
20210281201
2021-09-09

Motor-driven compressor

#84
20210253085
2021-08-19

Control system for movable body

#85
20210249984
2021-08-12

Inverter controller and on-vehicle fluid machine

#86
20210249979
2021-08-12

Motor drive

#87
20210247713
2021-08-12

Image forming apparatus

#88
20210226572
2021-07-22

Current sensor state determination device and in vehicle rotating electric machine system having same

#89
20210218354
2021-07-15

Sensorless position detection for electric motor

#90
20210211079
2021-07-08

Catch spin method for permanent magnet synchronous motor with sensorless field oriented control

#91
20210184610
2021-06-17

Systems and methods for detecting stator winding faults and degradation

#92
20210181711
2021-06-17

System for adaptive bandwidth control of electric motors using frequency response analysis method

#93
20210175828
2021-06-10

Method for operating a synchronous motor excited by permanent magnets, electronic control device, motor arrangement, and storage medium

#94
20210167708
2021-06-03

Method of controlling a multi-phase electrical machine

#95
20210167707
2021-06-03

Stabilizing DC link voltage with adaptive gain

#96
20210086624
2021-03-25

Control apparatus, vehicle system, and control method

#97
20210083615
2021-03-18

Space vector pulse width modulation for multi-phase machines

#98
20210075355
2021-03-11

Control device for electric motor and cable disconnection detection method

#99
20210075354
2021-03-11

Virtual voltage injection-based speed sensor-less driving control method for induction motor

#100
20210075353
2021-03-11

Motor controller and motor control method

#101
20210044244
2021-02-11

N-phase N+1 bridge arm inverter and modulation method thereof

#102
20210044236
2021-02-11

Active sound generation apparatus using motor

#103
20210044234
2021-02-11

Motor control system and power steering system

#104
20210044233
2021-02-11

Drive control for a three-phase motor

#105
20210036641
2021-02-04

Motor control system

#106
20210028735
2021-01-28

Motor control device and electric vehicle

#107
20210021221
2021-01-21

Systems and methods for motor parameter extraction

#108
20210021220
2021-01-21

Motor driving apparatus and method thereof

#109
20210013821
2021-01-14

Control system and method for permanent magnet synchronous traction and transmission system

#110
20210006192
2021-01-07

Motor driving apparatus and home appliance including the same

#111
20210006189
2021-01-07

Controller, motor control system having the controller, and electric power steering system having the motor control system

#112
20210006188
2021-01-07

Controller, motor control system having the controller, and electric power steering system having the motor control system

#113
20200412286
2020-12-31

Power tool and control method thereof

#114
20200395882
2020-12-17

ELECTRIC POWER STEERING APPARATUS

#115
20200395878
2020-12-17

Rotating electrical machine

#116
20200395877
2020-12-17

Motor control system and power steering system

#117
20200389110
2020-12-10

Field-oriented sensorless brushless motor control in a power tool

#118
20200389109
2020-12-10

Field-oriented sensorless brushless motor control in a power tool

#119
20200389108
2020-12-10

Field-oriented sensorless brushless motor control in a power tool

#120
20200389107
2020-12-10

Motor control device

#121
20200382039
2020-12-03

Control device for pole-number switching electric motor

#122
20200382032
2020-12-03

Motor control unit and electric power steering apparatus equipped with the same

#123
20200373869
2020-11-26

Power conversion device and electric power steering device

#124
20200366227
2020-11-19

Control apparatus for rotating electric machine

#125
20200350847
2020-11-05

Model predictive control of a converter based on pulse width modulated switching patterns

#126
20200348645
2020-11-05

System for adaptive bandwidth control of electric motors using frequency response analysis method

#127
20200343843
2020-10-29

Method for controlling speed regulation system of asynchronous motor based on buck-boost matrix converter

#128
20200328708
2020-10-15

Polar method for electric motor software calibration considering inverter voltage loss

#129
20200313589
2020-10-01

Sensorless position measurement system for permanent magnet machine and measuring method thereof

#130
20200295691
2020-09-17

Method of controlling a multi-phase electrical machine

#131
20200295689
2020-09-17

Motor control device, method of estimating initial position of magnetic pole of rotor, and image forming apparatus

#132
20200295688
2020-09-17

Motor control device, method of estimating initial position of magnetic pole of rotor, and image forming apparatus

#133
20200295687
2020-09-17

Driving device, driving system, and method of driving electric motor

#134
20200280278
2020-09-03

Inverter control device, motor drive device, and electric power steering apparatus

#135
20200280276
2020-09-03

Method and system for controlling a permanent magnet machine without a mechanical position sensor

#136
20200274474
2020-08-27

Control device and control method for synchronous electric motor

#137
20200274473
2020-08-27

Motor control device, electrically driven actuator product, and electrically driven power steering device

#138
20200274471
2020-08-27

Method and device for driving motors

#139
20200266746
2020-08-20

Electric drive device

#140
20200266745
2020-08-20

Motor control device, method of estimating initial position of magnetic pole of rotor, and image forming apparatus

#141
20200266743
2020-08-20

Systems, methods and devices for neural network control for IPM motor drives

#142
20200259436
2020-08-13

Method for changing between block control and PWM control of an electric machine

#143
20200252015
2020-08-06

Motor controller and electric power steering device having same

#144
20200244121
2020-07-30

Magnetic generator for motor, soft magnetic core, and method of manufacturing magnet

#145
20200228039
2020-07-16

Apparatus, system, and method for controlling motor

#146
20200228038
2020-07-16

Rotary electric machine, rotary electric machine drive system, magnet, method of manufacturing magnet, magnetizing apparatus, and magnet unit

#147
20200220486
2020-07-09

Motor control method and device

#148
20200204099
2020-06-25

Multi-phase motor/generator system with harmonic injection

#149
20200204098
2020-06-25

Motor control device

#150
20200195181
2020-06-18

Motor controller and image forming apparatus

#151
20200186071
2020-06-11

Method of controlling a permanent magnent synchronous motor and a motor circuit

#152
20200177121
2020-06-04

Vehicle electric motor closed-loop position holding control

#153
20200177116
2020-06-04

Motor drive system including removable bypass circuit and/or cooling features

#154
20200169203
2020-05-28

Apparatus and method for detecting overload of BLDC motor

#155
20200166908
2020-05-28

Method and system for compensating offset of resolver

#156
20200162008
2020-05-21

Motor drive apparatus

#157
20200162004
2020-05-21

INDUCTION MOTOR CONTROL

#158
20200162003
2020-05-21

Rotating electrical machine

#159
20200162002
2020-05-21

Rotating electric machine drive system

#160
20200162001
2020-05-21

Apparatus and method for controlling motor

#161
20200153372
2020-05-14

High performance current sensing architecture for brushless motors

#162
20200119681
2020-04-16

Comprehensive smart-clamp strategy for inverter systems

#163
20200119674
2020-04-16

Control device for motor, and electric power steering system

#164
20200106378
2020-04-02

Control device for power conversion device, and motor drive system

#165
20200106377
2020-04-02

Control device for power conversion device, control method, and motor drive system

#166
20200083833
2020-03-12

Control device for three-phase rotary machine

#167
20200067444
2020-02-27

Control device for an inverter

#168
20200059182
2020-02-20

Motor controller and power steering device

#169
20200059180
2020-02-20

Motor control system

#170
20200044595
2020-02-06

Multi lane motors

#171
20200036313
2020-01-30

APPARATUS FOR CONTROLLING COMPRESSOR, CONTROL SYSTEM FOR COMPRESSOR, AND METHOD FOR CONTROLLING COMPRESSOR

#172
20200028460
2020-01-23

Apparatus and method for controlling inverter for driving motor

#173
20200021228
2020-01-16

Drive apparatus and drive method for brushless motor

#174
20200021220
2020-01-16

Motor control device

#175
20200021217
2020-01-16

Motor drive device and control method for motor drive device

#176
20200007058
2020-01-02

Controller for power convertor and motor driving system

#177
20190393817
2019-12-26

Position control device

#178
20190393816
2019-12-26

Motor drive system and method

#179
20190363662
2019-11-28

Method for operating a drive system, and drive system

#180
20190363660
2019-11-28

Multi-phase motor system and control method

#181
20190344824
2019-11-14

Electric power steering apparatus

#182
20190341867
2019-11-07

Control apparatus for the rotary electrical machine

#183
20190341865
2019-11-07

Control apparatus of a synchronous motor

#184
20190334466
2019-10-31

Motor controller and electric power steering device

#185
20190334465
2019-10-31

MOTOR DRIVE UNIT

#186
20190305711
2019-10-03

Onboard fluid machine and method for controlling onboard fluid machine

#187
20190305706
2019-10-03

Motor driven power steering apparatus and control method therefor

#188
20190296669
2019-09-26

Discharge control device

#189
20190296668
2019-09-26

Motor system

#190
20190280636
2019-09-12

Motor control apparatus

#191
20190260327
2019-08-22

Controller for rotary machine and electric power steering apparatus

#192
20190253016
2019-08-15

Motor drive device, control method and motor

#193
20190253015
2019-08-15

Space vector pulse width modulation method for suppressing common-mode voltage of multiphase motor

#194
20190207544
2019-07-04

Motor control system and motor control method

#195
20190207543
2019-07-04

Methods and systems for brushless motor control

#196
20190190422
2019-06-20

Motor control method, motor drive system, and electric power steering system

#197
20190190421
2019-06-20

Inverter control device and drive system

#198
20190173406
2019-06-06

INVERTER DEVICE

#199
20190158691
2019-05-23

Sheet conveyance apparatus and image forming apparatus

#200
20190158007
2019-05-23

Magnetic pole direction detection device

#201
20190149079
2019-05-16

Method for switching off a polyphase electrical machine in a motor vehicle

#202
20190140575
2019-05-09

Motor system, motor drive device, refrigeration cycle device, and air conditioner

#203
20190135335
2019-05-09

Steering control apparatus

#204
20190131910
2019-05-02

Motor drive control device

#205
20190131904
2019-05-02

Current detection apparatus and control apparatus of rotary electric machine

#206
20190131903
2019-05-02

Power conversion device and air conditioner

#207
20190127903
2019-05-02

Drain pump driving apparatus and laundry treatment machine including the same

#208
20190123677
2019-04-25

Rotating-electric-machine control apparatus

#209
20190115863
2019-04-18

Electrical motor device

#210
20190097559
2019-03-28

POWER CONVERSION DEVICE, MOTOR DRIVE DEVICE, AND REFRIGERATOR USING SAME

#211
20190089281
2019-03-21

Active stabilization of DC link in motor drive systems

#212
20190068097
2019-02-28

System and method for stability control in adjustable speed drive with DC link thin film capacitor

#213
20190052210
2019-02-14

Motor drive device and refrigeration equipment

#214
20190047614
2019-02-14

Control apparatus for power steering apparatus and power steering apparatus using the same

#215
20190006979
2019-01-03

Current sensor state determination device and in-vehicle rotating electric machine system having same

#216
20190006974
2019-01-03

Motor control system and method

#217
20180375454
2018-12-27

CONTROL DEVICE OF MOTOR AND ELECTRIC VEHICLE USING THE SAME

#218
20180254733
2018-09-06

Control device and control method

#219
20180254730
2018-09-06

Driving device

#220
20180227448
2018-08-09

Sheet conveyance apparatus and image forming apparatus

#221
20180191288
2018-07-05

Inverter and motor drive device, freezing device

#222
20180159458
2018-06-07

Control apparatus and control method

#223
20180152128
2018-05-31

Inverter control device

#224
20180152127
2018-05-31

Method of controlling dual inverter

#225
20180145622
2018-05-24

Electric power steering control apparatus and electric power steering control method

#226
20180091080
2018-03-29

Motor control device

#227
20180044116
2018-02-15

VIBRATING FEEDER CONTROL APPARATUS AND VIBRATING FEEDER

#228
20180034406
2018-02-01

Motor drive device

#229
20180034397
2018-02-01

Control device for AC rotary machine and control device for electric power steering

#230
20170331409
2017-11-16

Mechatronic assembly controlled by a torque and direction signal separate from the power signal

#231
20170317636
2017-11-02

Method of controlling a three-phase inverter implementing a vector modulation

#232
20160279981
2016-09-29

Motor characterization in a printer

#233
20160111973
2016-04-21

Method and device for controlling an inverter

#234
20160020708
2016-01-21

Power converter controller

#235
20150229233
2015-08-13

Model predictive control with reference tracking

#236
20140268960
2014-09-18

Method and system for power conversion

#237
20140035495
2014-02-06

Methods and apparatuses for obtaining maximum magnetic flux of permanent magnet synchronous motors

#238
20130063057
2013-03-14

Control system for a rotary machine

#239
20130063056
2013-03-14

Control system for a rotary machiine

#240
20130038252
2013-02-14

Method for reducing the starting current of a multi-phase machine operated by block commutation

#241
20130009611
2013-01-10

Direct power and stator flux vector control of a generator for wind energy conversion system

#242
20120187876
2012-07-26

Methods, systems and apparatus for controlling third harmonic voltage when operating a multi-phase machine in an overmodulation region

#243
20120169259
2012-07-05

Method and system for power conversion

#244
20110221367
2011-09-15

Methods, systems and apparatus for overmodulation of a five-phase machine

#245
20110181225
2011-07-28

Controller for a rotating electrical machine

#246
20110110413
2011-05-12

Space vector based synchronous modulating method and system

#247
20100231145
2010-09-16

Method for controlling a polyphase voltage inverter

#248
20100052599
2010-03-04

Inverter device

#249
20090267545
2009-10-29

Method and arrangement in connection with a brake chopper

#250
20090160376
2009-06-25

Control system for multiphase rotary machines

#251
20080304302
2008-12-11

Systems and methods for controlling a converter for powering a load

#252
20080266918
2008-10-30

Polyphase voltage converter control method

#253
20080136380
2008-06-12

Method for controlled application of a stator current set point value and of a torque set point value for a converter-fed rotating-field machine

#254
20070216341
2007-09-20

Method and apparatus for PWM control of voltage source inverter

#255
20060245743
2006-11-02

Circuit to improve motor phase current reconstruction via DC link

#256
20060226803
2006-10-12

Measuring average of phase voltage of a frequency converter based on an idealized waveform

#257
20050152165
2005-07-14

Method for determining output currents of frequency converter

#258
20050024902
2005-02-03

Method and system for improved thermal management of a voltage source inverter operating at low output frequency utilizing a zero vector modulation technique

#259
19062042
2026-03-24

Wireless in-wheel motor drive and method for optimizing the same