ClassID:

218231

H02P6/185 - CPC Classification

Classification description:

Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor; Electronic commutators; Circuit arrangements for detecting position without separate position detecting elements using inductance sensing, e.g. pulse excitation

Recent Application in this class:
#1
20260019014
2026-01-15

Motor Control Apparatus and Motor Control Method

#2
20250373182
2025-12-04

CONTROL METHOD TO ACHIEVE ZERO AND ULTRA-LOW SPEED OPERATION FOR BRUSHLESS DC MOTOR WITHOUT POSITION SENSOR

#3
20250354427
2025-11-20

METHOD FOR DETECTING A MOVEMENT OF A FLAP OF A MOTOR VEHICLE

#4
20250279738
2025-09-04

METHOD OF CONTROLLING A BRUSHLESS PERMANENT MAGNET MOTOR

#5
20250233536
2025-07-17

Method for Detecting Field Magnet Position of an Electric Motor

#6
20250112569
2025-04-03

INDUCTIVE SENSOR SYSTEM

#7
20250060695
2025-02-20

IMAGE FORMING APPARATUS THAT DETECTS STOPPING POSITION OF ROTOR OF MOTOR

#8
20240171097
2024-05-23

CONTROL DEVICE FOR SYNCHRONOUS MOTOR

#9
20240154551
2024-05-09

Method for Operating a Permanently Excited Synchronous Motor of a Hand-Held Working Device, and Hand-Held Working Device

#10
20240154550
2024-05-09

POSITION DETECTION DEVICE AND IMAGING DEVICE

#11
20240146217
2024-05-02

Motor driver using motor magnetic pole reference controlling mechanism

#12
20240128903
2024-04-18

METHOD OF CONTROLLING A THREE-PHASE PERMANENT-MAGNET MOTOR

#13
20240063734
2024-02-22

POSITION SENSOR OF MOTOR

#14
20230179126
2023-06-08

Preload control system

#15
20230119985
2023-04-20

Sensorless position determination of an electric machine

#16
20230068845
2023-03-02

Method of determining an initial rotor position for a synchronous motor and a controller therefor

#17
20220416694
2022-12-29

Estimating motor speed and position

#18
20220368253
2022-11-17

Systems and methods for phase-voltage based motor period measurement and controlled signal path fault detection

#19
20220308514
2022-09-29

Motor control apparatus that controls motor, based on command values of excitation current and of torque current, and image forming apparatus

#20
20220286074
2022-09-08

Method for reliable control of high rotor pole switched reluctance machine

#21
20220255481
2022-08-11

Electric power conversion with phase correction

#22
20220203847
2022-06-30

Apparatus and method for controlling charging of electric vehicle

#23
20220166356
2022-05-26

Controller for rotary electric machine

#24
20220094285
2022-03-24

Position detection and monitoring

#25
20220085696
2022-03-17

MOTOR CONTROL DEVICE

#26
20210333130
2021-10-28

Motor rotation angle measurement device and method

#27
20210320603
2021-10-14

Motor control device

#28
20210305929
2021-09-30

Detection of unbalanced phase resistances in synchronous motor drives

#29
20210297020
2021-09-23

Method for correcting magnetic field position error in electric motor

#30
20210288597
2021-09-16

MOTOR CONTROLLING DEVICE

#31
20210242814
2021-08-05

Method for reliable control of high rotor pole switched reluctance machine

#32
20210226565
2021-07-22

Method for determining current-dependent inductances of a multi-phase electrical machine and frequency converter

#33
20210211077
2021-07-08

Method and system for cranking an internal combustion engine

#34
20210194398
2021-06-24

Method and device for controlling a synchronous machine without a position sensor by means of one-to-one assignment of the admittance or inductance to the rotor position

#35
20210013817
2021-01-14

Motor control apparatus, image reading apparatus and image forming apparatus

#36
20200403540
2020-12-24

Motor control device

#37
20200287485
2020-09-10

Method for determining rotor position of electric motor, elevator and electrical converter unit

#38
20200235690
2020-07-23

Method for reliable control of high rotor pole switched reluctance machine

#39
20200235684
2020-07-23

Motor control apparatus and image forming apparatus

#40
20200235683
2020-07-23

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

#41
20200195178
2020-06-18

Method for determining the rotational position of a rotor in a permanent magnet synchronous machine

#42
20200195177
2020-06-18

Method of detecting the angular position of an electric motor, corresponding circuit and electric motor

#43
20200153370
2020-05-14

System and computer-implemented method for reducing angle error in electric motors

#44
20200127587
2020-04-23

Sensorless motor control

#45
20200076344
2020-03-05

Method for reliable control of high rotor pole switched reluctance machine

#46
20200059175
2020-02-20

Method and device for determining the position angle of a rotor in an electric synchronous machine

#47
20200052621
2020-02-13

Camera module

#48
20200044587
2020-02-06

Adaptive hold current for electric motors

#49
20200021214
2020-01-16

Rotor position estimation

#50
20200014313
2020-01-09

Method for identifying the magnetic anisotropy of an electric rotary field machine

#51
20190386591
2019-12-19

METHOD FOR DETERMINING THE ROTATIONAL ANGULAR POSITION OF THE ROTOR OF A MULTIPHASE ELECTRIC MACHINE

#52
20190372490
2019-12-05

Control device of permanent magnet synchronous motor and image forming device

#53
20190363614
2019-11-28

Servo motor system and method

#54
20190305700
2019-10-03

Multiphase synchronous motor controller with angle tracking

#55
20190305697
2019-10-03

Method and apparatus for control of switched reluctance motors

#56
20190288619
2019-09-19

Resolver management device, resolver system including the same, and operating method thereof

#57
20190280636
2019-09-12

Motor control apparatus

#58
20190280631
2019-09-12

Method and circuit arrangement for determining the position of a rotor in an electric motor

#59
20190181784
2019-06-13

Method of detecting the position of an electric motor, corresponding system and motor

#60
20190173402
2019-06-06

Motor control apparatus that performs processing for detecting stop position of rotor, and image forming apparatus

#61
20190115859
2019-04-18

Motor control device and motor system

#62
20190097555
2019-03-28

System and computer-implemented method for reducing angle error in electric motors

#63
20190089289
2019-03-21

ELECTRIC MOTOR WITH INDEPENDENT POLE CONTROL

#64
20190058423
2019-02-21

Actuator with inherent position sensor

#65
20190036472
2019-01-31

Method for reliable control of high rotor pole switched reluctance machine

#66
20190020292
2019-01-17

Process of operating a hybrid controller for brushless DC motor

#67
20180234042
2018-08-16

Motor driving control device and motor driving control method

#68
20180210010
2018-07-26

Method for operating an electric machine, electric machine

#69
20180198391
2018-07-12

Method for determining current-dependent and/or rotational angle position-dependent characteristic variables of an electrical machine, and frequency converter

#70
20180191288
2018-07-05

Inverter and motor drive device, freezing device

#71
20180183368
2018-06-28

Motor driving control device and control method of motor driving control device

#72
20180175754
2018-06-21

Adjustable pulse injection in electric machine control

#73
20180167009
2018-06-14

Controller for permanent magnet synchronous motor, and control method for estimating initial position of rotor

#74
20180159451
2018-06-07

Mutual inductance voltage offset compensation for brushless DC sensorless motors

#75
20180138843
2018-05-17

Method for determining a multiphase motor current and electric motor drive

#76
20180069500
2018-03-08

Method for reliable control of high rotor pole switched reluctance machine

#77
20180062549
2018-03-01

Systems and methods for determining motor parameters

#78
20180054148
2018-02-22

METHOD AND SYSTEM FOR SENSORLESS CONTROL OF A PMSM MOTOR

#79
20180026559
2018-01-25

Rotation angle estimation apparatus for rotating electric machine

#80
20170366126
2017-12-21

Method for determining a rotor frequency and/or a rotor angle of a rotor of a reluctance machine, control device, and drive assembly

#81
20170366120
2017-12-21

Determining motor position with complementary driving and detection and current injection

#82
20170331398
2017-11-16

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

#83
20170310256
2017-10-26

Method of controlling a brushless permanent-magnet motor

#84
20170170767
2017-06-15

Motor driving circuit and motor driving method

#85
20170133967
2017-05-11

Method for reliable control of high rotor pole switched reluctance machine

#86
20170133962
2017-05-11

Mutual inductance voltage offset compensation for brushless DC sensorless motors

#87
20170126156
2017-05-04

Sensorless control of switched reluctance machines for low speeds and standstill

#88
20170082419
2017-03-23

Initial angle detection in stand still

#89
20160315576
2016-10-27

Detection of an inter-turn winding fault in a motor

#90
20160294311
2016-10-06

Hybrid controller for brushless DC motor

#91
20160285396
2016-09-29

Controller and in-vehicle motor-driven compressor

#92
20160238432
2016-08-18

Apparatuses and methods for monitoring stall of motors

#93
20160218654
2016-07-28

Motor control system and method with flux linkage estimation error compensation

#94
20160218653
2016-07-28

Motor control system and method with adaptive flux linkage estimation

#95
20160218651
2016-07-28

Motor control system and method with predictive motor current estimation

#96
20160134216
2016-05-12

Circuits and methods of determining position and velocity of a rotor

#97
20160079894
2016-03-17

Apparatus employing coil inductance determination and method for operating the apparatus

#98
20160056741
2016-02-25

Device for determining a position of a rotor of an electric motor

#99
20160043674
2016-02-11

MOTOR DRIVING APPARATUS AND METHOD

#100
20160028337
2016-01-28

Control system for a synchronous machine and method for operating a synchronous machine

#101
20150381087
2015-12-31

Sensorless Control of Switched Reluctance Machines for Low Speeds and Standstill

#102
20150311845
2015-10-29

Motor drive device and electric compressor

#103
20150311838
2015-10-29

Improvements relating to electrical power assisted steering systems

#104
20150295526
2015-10-15

Enhanced inductive sense using mutual inductance

#105
20150268283
2015-09-24

Method for determining the position of a rotor of a polyphase motor

#106
20150177297
2015-06-25

Method for determining the rotor position of an electrically-commuted multi-phase direct current motor

#107
20150171781
2015-06-18

PMSM rotor angle identification

#108
20150057970
2015-02-26

Method and device for determining a rotor position of an electronically commutated electric machine

#109
20150054441
2015-02-26

Method and device for determining the position of a brushless electric drive

#110
20140374194
2014-12-25

Method and apparatus for controlling an electric motor of an elevator without an encoder

#111
20140333244
2014-11-13

Control of a permanent-magnet electric machine

#112
20140327380
2014-11-06

Circuits and methods of determining position and velocity of a rotor

#113
20140232311
2014-08-21

Method and system for determining the position of a synchronous motor's rotor

#114
20140145662
2014-05-29

Motor driving apparatus and method

#115
20140145659
2014-05-29

Method for determining the rotary position of the rotor of an electric machine

#116
20140112801
2014-04-24

Motor driving device and vacuum pump

#117
20140084822
2014-03-27

Control device for rotary machine

#118
20140070747
2014-03-13

Control device and method for establishing the rotor angle of a synchronous machine

#119
20140070746
2014-03-13

Control device and method for establishing the rotor angle of a synchronous machine

#120
20140035503
2014-02-06

Three-phase motor driving apparatus and three-phase motor driving method

#121
20140028228
2014-01-30

Control systems and methods for angle estimation of permanent magnet motors

#122
20130342146
2013-12-26

Method and system for switching between different types of operation of a sensorless permanent magnet brushless motor at low or zero speed to determine rotor position

#123
20130342145
2013-12-26

System and method for isolating the undriven voltage of a permanent magnet brushless motor for detection of rotor position

#124
20130342141
2013-12-26

Determining commutation position for a sensorless permanent magnet brushless motor at low or zero speed using an asymmetric drive pattern

#125
20130334992
2013-12-19

Control method implemented in a power converter and intended for identifying parameters linked to the magnetic saturation of an electric motor

#126
20130245994
2013-09-19

Apparatus for determining the angular position of the rotor of an electric machine

#127
20130241454
2013-09-19

Method and processing unit for determining the position of the armature of a synchronous machine relative to the stator of the synchronous machine

#128
20130234631
2013-09-12

Method of determining the rotor position of a permanent-magnet motor

#129
20130207588
2013-08-15

INITIAL DRIVING APPARATUS AND METHOD OF TWO-PHASE SRM

#130
20130141024
2013-06-06

Method and system for controlling a permanent magnet synchronous motor

#131
20130134967
2013-05-30

Method and circuit arrangement for checking the rotor position of a synchronous machine

#132
20130106333
2013-05-02

Apparatus and method of determining rotor position in a salient-type motor

#133
20130069638
2013-03-21

Method and device for determining a current angular position of a rotatable magnetic component in an electric drive

#134
20130057193
2013-03-07

Synchronous motor drive system and synchronous motor

#135
20120286713
2012-11-15

Determination of the position of the rotor of an electric machine

#136
20120242265
2012-09-27

Method for operating an electric machine, and drive device

#137
20120223665
2012-09-06

Method and device for determining a rotor position of a synchronous machine

#138
20120206077
2012-08-16

Apparatus for calculating rotational position of rotary machine

#139
20120169260
2012-07-05

Method and device for compensating for load factors in permanently excited motors

#140
20120146626
2012-06-14

Method and arrangement for determining the position of a rotor in a brushless motor or in stepper motor

#141
20120098474
2012-04-26

Apparatus for detecting the position of a rotor of an electric motor and related method

#142
20110304290
2011-12-15

Control apparatus and control method for electric rotating machine

#143
20110291601
2011-12-01

Control apparatus for electric rotating machine

#144
20110279073
2011-11-17

Method for operating an electronically commutated electric motor and apparatus therefor

#145
20110273168
2011-11-10

Position determination of an electric drive having two stators and two rotors

#146
20110254491
2011-10-20

Synchronous-machine starting device

#147
20110248659
2011-10-13

Determining initial rotor position of an alternating current motor

#148
20110241658
2011-10-06

Determining the rotor angle of a synchronous machine at standstill with the aid of iterative test pulses

#149
20110215744
2011-09-08

METHOD FOR DETECTING THE ROTOR POSITION OF AN ELECTRIC MACHINE, AND DEVICE FOR THE SAME

#150
20110181220
2011-07-28

Synchronous machine starting device

#151
20110121768
2011-05-26

Motor starting control method, motor driving system and motor system

#152
20110115424
2011-05-19

Method for determining the position of a rotor of a synchronous machine having at least one excitation winding

#153
20110109255
2011-05-12

System and method for determining the start position of a motor

#154
20110108369
2011-05-12

Determination of the movement of a synchronous machine

#155
20110101900
2011-05-05

Method for determining the inductances of a permanent magnet synchronous machine

#156
20110084640
2011-04-14

Variable pulse width modulation for reduced zero-crossing granularity in sensorless brushless direct current motors

#157
20110062902
2011-03-17

Method and apparatus for low speed permanent magnet motor operation

#158
20110057593
2011-03-10

Position sensorless motor control

#159
20110050209
2011-03-03

METHOD AND APPARATUS FOR UNAMBIGUOUS DETERMINATION OF THE ROTOR POSITION OF AN ELECTRICAL MACHINE

#160
20110037421
2011-02-17

Determination of the position of the rotor of an electric machine

#161
20110035114
2011-02-10

Motor control device and electric steering system

#162
20100231154
2010-09-16

Motor control device and motor system

#163
20100225262
2010-09-09

Method for determining a rotor position in a permanent magnet motor

#164
20100171455
2010-07-08

Initial polarity detection for permanent magnet motor drives

#165
20100156334
2010-06-24

Sensorless motor control device

#166
20100141192
2010-06-10

Operation of BLDC motors

#167
20100109589
2010-05-06

Brushless motor, brushless motor control system, and brushless motor control method

#168
20100072930
2010-03-25

Negative sequence carrier signal controller

#169
20100045222
2010-02-25

Direct flux regulated permanent magnet brushless motor utilizing sensorless control by DC and AC excitation

#170
20100045218
2010-02-25

Motor control device

#171
20100033064
2010-02-11

Rotation detector and direct-current motor

#172
20100026226
2010-02-04

Systems and methods involving permanent magnet electric machine rotor position determination

#173
20100026223
2010-02-04

Method and apparatus for identifying orientation of a stationary rotor in a sensor-less PMSM

#174
20090322266
2009-12-31

Systems and methods for controlling a DC motor

#175
20090278485
2009-11-12

Device and method for determining the rotational position of a rotor in an electric machine

#176
20090218965
2009-09-03

Electric motor control

#177
20090195198
2009-08-06

Motor and method for starting the same

#178
20090184678
2009-07-23

Permanent magnet AC motor systems and control algorithm restart methods

#179
20090121664
2009-05-14

Open/close body drive device

#180
20090108783
2009-04-30

Rotor orientation detection in brushless DC motors

#181
20090096396
2009-04-16

Method for Determining the Rotor Position of a Separately Excited Rotating Electrical Machine

#182
20090039810
2009-02-12

System for seamless estimation of speed and/or position, including standstill of a permanent magnet rotor of an electric motor

#183
20090039652
2009-02-12

Electrical machine

#184
20080303516
2008-12-11

Method and circuit arrangement for determining the rotor position of an EC motor in the standstill state

#185
20080258658
2008-10-23

Controller for a multi-phase brushless DC motor

#186
20080252244
2008-10-16

Sensorless speed detection of a PM brushless motor with phase terminals shorted

#187
20080169782
2008-07-17

Method for sensorless estimation of rotor speed and position of a permanent magnet synchronous machine

#188
20080157708
2008-07-03

Method and apparatus for determining the rotor position of an electric motor from the electric current and the angular acceleration

#189
20080074103
2008-03-27

Method for determining the angular position of the rotor in a rotating electric machine

#190
20080067964
2008-03-20

Rotation control apparatus and method, and electronic device wherein the rotation control apparatus can be used

#191
20080048599
2008-02-28

Signal conditioning apparatus and method for determination of permanent magnet motor rotor position

#192
20080048598
2008-02-28

Brushless motor driving device, brushless motor starting method, and method of detecting rotor stop position of brushless motor

#193
20080018279
2008-01-24

Motor driving apparatus, motor driving method and disk driving apparatus

#194
20070252587
2007-11-01

Method for determining the rotor position of a synchronous machine

#195
20070247099
2007-10-25

System and method for transient-based motor speed estimation with transient excitation

#196
20070229021
2007-10-04

Motor controller

#197
20070210732
2007-09-13

Method for starting a sensorless, electronically commutatable direct current motor

#198
20070120519
2007-05-31

System and method for driving synchronous motor

#199
20070085508
2007-04-19

Method of estimating magnetic pole position in motor and apparatus of controlling the motor based on the estimated position

#200
20070085499
2007-04-19

Rotor position detection of a brushless DC motor

#201
20070080655
2007-04-12

Method, apparatus and article for detecting rotor position

#202
20070075671
2007-04-05

Method and apparatus for detecting excitation position of SRM by comparison of detected current

#203
20070035272
2007-02-15

Control device for electric compressor

#204
20070032970
2007-02-08

Apparatus and method for estimation of initial phase of a brushless motor

#205
20070029956
2007-02-08

Controller for a multi-phase brushless DC motor

#206
20070018598
2007-01-25

Method of Operating a Three Phase Sensorless Brushless Motor

#207
20060220602
2006-10-05

Starting method for Hall-less single-phase BLDCM

#208
20060197478
2006-09-07

Method for starting single phase BLDCM having asymmetrical air gap

#209
20060091845
2006-05-04

Control system and method for electric drives with a.c. motors

#210
20060066280
2006-03-30

Digital spindle control architecture

#211
20060061319
2006-03-23

Carrier injection sensorless control of aircraft variable frequency wound field synchronous starter/generators

#212
20060052976
2006-03-09

Electric machine with actively controlled switches

#213
20060049787
2006-03-09

Motor magnetic pole position estimation device and control device

#214
20060032710
2006-02-16

Method and apparatus for adjustment of the rotor angle of an elevator motor

#215
20060028024
2006-02-09

Drive unit

#216
20060022623
2006-02-02

Rotor position determination device of rotating electric machine and control device of rotating electric machine

#217
20060006833
2006-01-12

Electrical machine rotor position identification

#218
20050283324
2005-12-22

Method and system for determining a rotor position in a wound field DC motor

#219
20050269982
2005-12-08

Motor drive control

#220
20050237017
2005-10-27

System, method, and an article of manufacture for starting a brushless direct current motor

#221
20050184698
2005-08-25

Position sensing method and apparatus for synchronous motor generator system

#222
20050151501
2005-07-14

Rotor position detection of an electrical machine

#223
20050127857
2005-06-16

Brushless motor control apparatus and brushless motor control method

#224
20050110450
2005-05-26

Decoupling a harmonic signal from a signal path

#225
20050099148
2005-05-12

Motor acceleration using continuous sequence of current limit values

#226
20050073274
2005-04-07

Sensorless motor driving apparatus and driving method addressing prevention of backward rotation

#227
20050067998
2005-03-31

Switched reluctance machine control system and method

#228
15965947
2019-03-26

Data storage device detecting spindle motor position at increased resolution using mutual inductive sense

#229
15947540
2020-05-26

System to control a rotary electric machine

#230
15916320
2019-05-14

Method for operating a synchronous motor

#231
15368319
2018-01-09

Rotor control method and device

#232
15159292
2017-08-08

Sensorless control of AC induction motor method and apparatus

#233
15082534
2017-08-29

Integrated motor driver/controller with sensorless or sensored commutation

#234
14599828
2017-10-10

Controlled inductive sense system