ClassID:

218232

H02P6/186 - 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 difference of inductance or reluctance between the phases

Recent Application in this class:
#1
20250354427
2025-11-20

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

#2
20250192700
2025-06-12

MOTOR CONTROL DEVICE AND MAGNETIC POLE POSITION CALCULATION METHOD

#3
20240106359
2024-03-28

Motor driver capable of setting pulse width modulation at commutation time points of motor

#4
20240063733
2024-02-22

Motor control apparatus that performs failure determination and determination of rotational position of rotor, and image forming apparatus

#5
20230396193
2023-12-07

PHASE ADVANCE METHOD IN MOTORS WITH PERMANENT MAGNETS PRESENTING INDUCED VOLTAGES WITH FLAT REGION

#6
20230361697
2023-11-09

LOW-SPEED SENSORLESS BRUSHLESS MOTOR CONTROL IN A POWER TOOL

#7
20230353072
2023-11-02

Inductance-based, high-torque start up of electric motor

#8
20230238902
2023-07-27

SEMICONDUCTOR DEVICE, MOTOR DRIVE SYSTEM, AND CONTROL METHOD THEREOF

#9
20230208336
2023-06-29

Manufacturing-sensitive control of high rotor pole switched reluctance motors

#10
20230114056
2023-04-13

Method for determining initial rotor position of permanent magnet synchronous motor according to phase current differences and line current differences and associated motor device

#11
20220368253
2022-11-17

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

#12
20220329180
2022-10-13

Low-speed sensorless brushless motor control in a power tool

#13
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

#14
20220291617
2022-09-15

Image forming apparatus having a motor to drive a pickup roller

#15
20220286074
2022-09-08

Method for reliable control of high rotor pole switched reluctance machine

#16
20220239240
2022-07-28

Detecting a direction of motor rotation in single-phase converters

#17
20220094286
2022-03-24

Rotor position sensing system for permanent magnet synchronous motors and related methods

#18
20220077796
2022-03-10

Motor controller

#19
20220060132
2022-02-24

Manufacturing-sensitive control of high rotor pole switched reluctance motors

#20
20210408949
2021-12-30

Motor control apparatus and image forming apparatus

#21
20210242814
2021-08-05

Method for reliable control of high rotor pole switched reluctance machine

#22
20200389114
2020-12-10

Manufacturing-sensitive control of high rotor pole switched reluctance motors

#23
20200373863
2020-11-26

SLOTLESS SYNCHRONOUS PERMANENT MAGNET MOTOR

#24
20200343840
2020-10-29

Sensorless variable conduction control for brushless motor

#25
20200343839
2020-10-29

Low-speed sensorless brushless motor control in a power tool

#26
20200343838
2020-10-29

Dual-controller system for a sensorless brushless motor control

#27
20200235690
2020-07-23

Method for reliable control of high rotor pole switched reluctance machine

#28
20200235680
2020-07-23

Motor control apparatus that performs failure determination and determination of rotational position of rotor, and image forming apparatus

#29
20200212828
2020-07-02

Determination of an interrupted motor phase of an electric motor

#30
20200195179
2020-06-18

Rotor position sensing system for permanent magnet synchronous motors and related methods

#31
20200144944
2020-05-07

Motor control apparatus and motor control method

#32
20200076344
2020-03-05

Method for reliable control of high rotor pole switched reluctance machine

#33
20190393812
2019-12-26

Motor control apparatus including current detection unit for detecting coil current and image forming apparatus

#34
20190372491
2019-12-05

Method and system for acquiring rotor position of rotary transformer

#35
20190356252
2019-11-21

Motor control apparatus for detecting stop position of rotor of motor and image forming apparatus

#36
20190305699
2019-10-03

Electric working machine

#37
20190305697
2019-10-03

Method and apparatus for control of switched reluctance motors

#38
20190199253
2019-06-27

Inverter control apparatus and motor drive system

#39
20190140565
2019-05-09

Motor driving apparatus capable of reliably starting motor, and method of controlling same

#40
20190036472
2019-01-31

Method for reliable control of high rotor pole switched reluctance machine

#41
20180254722
2018-09-06

Drive device and method for three-phase brushless motor

#42
20180175755
2018-06-21

Rotor position sensing system for permanent magnet synchronous motors and related methods

#43
20180167009
2018-06-14

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

#44
20180069500
2018-03-08

Method for reliable control of high rotor pole switched reluctance machine

#45
20170366120
2017-12-21

Determining motor position with complementary driving and detection and current injection

#46
20170366114
2017-12-21

Determining motor position with complementary drive and detect and slight move

#47
20170310255
2017-10-26

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

#48
20170033719
2017-02-02

Method to control a switched reluctance motor

#49
20160233807
2016-08-11

Method and system for estimating differential inductances in an electric machine

#50
20160079894
2016-03-17

Apparatus employing coil inductance determination and method for operating the apparatus

#51
20150340980
2015-11-26

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

#52
20150295526
2015-10-15

Enhanced inductive sense using mutual inductance

#53
20150280626
2015-10-01

Systems and methods for rotor position determination

#54
20150249411
2015-09-03

Motor drive apparatus and discharge control method of the same

#55
20150145454
2015-05-28

Motor control apparatus for sensorless motor, and image forming apparatus

#56
20150097372
2015-04-09

Three phase flux switching generator in a three stage wound field synchronous machine

#57
20150061641
2015-03-05

Method for determining the position of the rotor of an electrical machine

#58
20150054441
2015-02-26

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

#59
20140232311
2014-08-21

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

#60
20140084822
2014-03-27

Control device for rotary machine

#61
20140042945
2014-02-13

Method for the sensorless commutation detection of electronically commutated electric motors

#62
20130293171
2013-11-07

Measurement circuit

#63
20130106333
2013-05-02

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

#64
20130082630
2013-04-04

Determining rotor position in sensorless switched reluctance motors

#65
20120319631
2012-12-20

Sensorless motor control using the rate of change of the inductive rise time

#66
20120146626
2012-06-14

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

#67
20120062160
2012-03-15

Permanent magnet motor with stator-based saliency for position sensorless drive

#68
20120013282
2012-01-19

Current measuring apparatus for use with electric motors

#69
20110279073
2011-11-17

Method for operating an electronically commutated electric motor and apparatus therefor

#70
20110175560
2011-07-21

Motor magnetic-pole-position estimating apparatus

#71
20110101900
2011-05-05

Method for determining the inductances of a permanent magnet synchronous machine

#72
20110057593
2011-03-10

Position sensorless motor control

#73
20110050007
2011-03-03

Moving body system and method of determining initial position of moving body

#74
20090261765
2009-10-22

Synchronous motor, encoderless motor system and a method for operating an encoderless motor system with a synchronous motor

#75
20050110452
2005-05-26

Position-of-magnetic-pole detecting device and method

#76
15382160
2018-01-23

Rotor position sensing system for permanent magnet synchronous motors and related methods