ClassID:

218376

H02P21/10 - CPC Classification

Classification description:

Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation; Rotor flux based control involving the use of rotor position or rotor speed sensors Direct field-oriented control; Rotor flux feed-back control

Recent Application in this class:
#1
20260147044
2026-05-28

Method and System for Early Detection of Abnormalities in Motor Ball Bearings

#2
20250392240
2025-12-25

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

#3
20250364930
2025-11-27

FIELD ORIENTED CONTROL WITH ADAPTIVE START

#4
20250141382
2025-05-01

FIELD ORIENTED CONTROL WITH SECTOR DETERMINATION

#5
20250105767
2025-03-27

DRIVE SIGNAL GENERATION FOR MOTOR

#6
20240424911
2024-12-26

DIRECT-AXIS VOLTAGE BASED ANGULAR OFFSET CALIBRATION IN AN ELECTRIC MOTOR

#7
20240405703
2024-12-05

FIELD ORIENTED CONTROL WITH ADAPTIVE START

#8
20240213898
2024-06-27

Resolver-to-digital conversion with rotation speed offset

#9
20240146223
2024-05-02

ELECTRIC MACHINE SYSTEM

#10
20240063732
2024-02-22

SYSTEM AND METHOD FOR CONTROLLING OPERATION OF A MOTOR

#11
20240022191
2024-01-18

Feedback scaling for electric machines

#12
20230412099
2023-12-21

MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE PROVIDED WITH SAME

#13
20230387845
2023-11-30

Permanent magnet synchronous motor (PMSM) and method for starting the PMSM

#14
20230370005
2023-11-16

Motor and method of controlling the same

#15
20230344373
2023-10-26

Unified open-circuit fault-tolerant control method for vector control drive system and direct torque control drive system of five-phase permanent magnet fault tolerant motor

#16
20230327592
2023-10-12

Electric motor control method and electric motor system

#17
20230318498
2023-10-05

Method and Apparatus for Communication between Analytic Modules and a Motor Drive

#18
20230238904
2023-07-27

Motor control with reduced back current during braking

#19
20230216439
2023-07-06

Motor iron-loss calculation device and motor control device comprising same

#20
20230023055
2023-01-26

Motor control with reduced back current during braking

#21
20230013620
2023-01-19

Field-oriented control (FOC) of multi-phase motors for prevention of thermal battery runaway

#22
20230006576
2023-01-05

Automatic transition of motor controller from open-loop control to closed-loop control

#23
20220407443
2022-12-22

Method and device for calibrating an offset angle

#24
20220360139
2022-11-10

METHOD FOR MINIMIZING GENERATOR VIBRATIONS

#25
20220337183
2022-10-20

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

#26
20220294376
2022-09-15

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

#27
20220255479
2022-08-11

FIELD-ORIENTED SENSORLESS BRUSHLESS MOTOR CONTROL IN A POWER TOOL

#28
20220247336
2022-08-04

Motor controller with stall detection

#29
20210399663
2021-12-23

APPARATUS AND METHOD FOR DETECTING MOTOR ROTOR POSITION

#30
20210265927
2021-08-26

Generation of motor drive signals with misalignment compensation

#31
20210247713
2021-08-12

Image forming apparatus

#32
20210226567
2021-07-22

Rotor angle error compensation for motors

#33
20210211079
2021-07-08

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

#34
20210159829
2021-05-27

Fail-safe function for a permanent magnet synchronous motor

#35
20210159828
2021-05-27

Speed contant control and power constant control of a permanent magnet synchronous motor

#36
20210061051
2021-03-04

Method of operating an adjustable roll stabilizer

#37
20210061050
2021-03-04

Method of operating an adjustable roll stabilizer

#38
20210061049
2021-03-04

Method of operating an adjustable roll stabilizer

#39
20200412286
2020-12-31

Power tool and control method thereof

#40
20200389110
2020-12-10

Field-oriented sensorless brushless motor control in a power tool

#41
20200389109
2020-12-10

Field-oriented sensorless brushless motor control in a power tool

#42
20200389108
2020-12-10

Field-oriented sensorless brushless motor control in a power tool

#43
20200266744
2020-08-20

Field-oriented control of a permanently excited synchronous reluctance machine

#44
20200259436
2020-08-13

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

#45
20200244121
2020-07-30

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

#46
20200231046
2020-07-23

Electrically driven vehicle

#47
20200228038
2020-07-16

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

#48
20200204099
2020-06-25

Multi-phase motor/generator system with harmonic injection

#49
20200106376
2020-04-02

Method for operating a three-phase machine

#50
20190363662
2019-11-28

Method for operating a drive system, and drive system

#51
20190341865
2019-11-07

Control apparatus of a synchronous motor

#52
20190260315
2019-08-22

Methods and apparatus for three-phase motor control with error compensation

#53
20190229661
2019-07-25

Control device for alternating current motor

#54
20190207546
2019-07-04

Method for controlling a synchronous machine and control device for a synchronous machine

#55
20190097560
2019-03-28

Controller for induction motor

#56
20190058427
2019-02-21

Generation of motor drive signals with misalignment compensation

#57
20180278185
2018-09-27

Methods and apparatus for three-phase motor control with error compensation

#58
20180210010
2018-07-26

Method for operating an electric machine, electric machine

#59
20180175764
2018-06-21

Wind power generator vibration inhibition method and device

#60
20180131305
2018-05-10

System and method for starting synchronous motors

#61
20160126871
2016-05-05

Motor control device for controlling current phase on dq/three-phase coordinates

#62
20160061635
2016-03-03

Magnetic pole position detection device of permanent magnet-type synchronous motor

#63
20160056738
2016-02-25

Apparatus and method for compensating for torque for current order of driving motor

#64
20160006381
2016-01-07

Device and method of 6-step controlling inverter of motor driving system

#65
20150372623
2015-12-24

Decoupling current control utilizing direct plant modification in electric power steering system

#66
20150321578
2015-11-12

Vehicle having an electric machine and two onboard power subsystems

#67
20150249417
2015-09-03

SYNCHRONOUS GENERATOR CONTROLLER BASED ON FLUX OPTIMIZER

#68
20150222215
2015-08-06

Drive unit of synchronous motor

#69
20150028792
2015-01-29

Induction motor flux and torque control

#70
20150022127
2015-01-22

Current control device of synchronous motor

#71
20140184133
2014-07-03

Variable-flux motor drive system

#72
20140062350
2014-03-06

Apparatus for controlling motor for electric vehicle and method for reducing torque ripple using the same

#73
20130334991
2013-12-19

Variable-flux motor drive system

#74
20120181970
2012-07-19

Variable-flux motor drive system

#75
20090261774
2009-10-22

Variable-flux motor drive system

#76
20090026988
2009-01-29

Motor control device

#77
20070108937
2007-05-17

Voltage mode control with phase advancing for position controlled electric machines

#78
20060208689
2006-09-21

Method and system for controlling an electric motor in the event of flux reduction

#79
20060066275
2006-03-30

Method and apparatus to regulate torque provided to loads

#80
20060055363
2006-03-16

Field weakening motor control system and method

#81
20050194924
2005-09-08

Wound field synchronous machine control device

#82
20050189902
2005-09-01

Direct control of an induction motor

#83
20050057208
2005-03-17

Method and apparatus to regulate loads

#84
17739023
2023-06-20

Apparatus and method for determining mechanical parameters of an electric motor and load

#85
15890188
2019-01-22

Voltage angle control for a permanent magnet machine