ClassID:

218370

H02P21/02 - CPC Classification

Classification description:

Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for optimising the efficiency at low load

Recent Application in this class:
#1
20260128692
2026-05-07

POWER TOOL MOTOR CONTROL AND METHODS ASSOCIATED THEREWITH

#2
20250357873
2025-11-20

STALL DETECTION IN FIELD-ORIENTED SENSORLESS MOTOR CONTROL

#3
20250062708
2025-02-20

Power Converter

#4
20230208330
2023-06-29

Methods of reducing vibrations for electric motors

#5
20230011334
2023-01-12

METHODS OF REDUCING VIBRATIONS FOR ELECTRIC MOTORS

#6
20210340975
2021-11-04

METHOD FOR INCREASING THE EFFICIENCY OF HERMETIC COMPRESSORS USED IN REFRIGERATION AND AIR CONDITIONING

#7
20210211078
2021-07-08

Controller for rotary electric machine apparatus

#8
20200259435
2020-08-13

Energy-efficient asynchronous machine

#9
20200220486
2020-07-09

Motor control method and device

#10
20170163201
2017-06-08

Control device for in-vehicle electric motor

#11
20170133959
2017-05-11

Rotating electric machine drive system

#12
20160308475
2016-10-20

Control apparatus for motor control system

#13
20150180401
2015-06-25

Methods and systems for envelope and efficiency control in an electric motor

#14
20150028793
2015-01-29

Motor control apparatus

#15
20140184133
2014-07-03

Variable-flux motor drive system

#16
20140176057
2014-06-26

System of securing a wide-range of devices during wireless charging

#17
20140139156
2014-05-22

Motor drive apparatus and vehicle including the same, and method for controlling motor drive apparatus

#18
20130334991
2013-12-19

Variable-flux motor drive system

#19
20120217923
2012-08-30

System for controlling a motor

#20
20120181970
2012-07-19

Variable-flux motor drive system

#21
20110316457
2011-12-29

DQ vector control system providing stable, high efficiency operation of electric motor

#22
20100198462
2010-08-05

Electric motor controller and electric motor controller for vehicle steering apparatus

#23
20100052581
2010-03-04

Motor controller

#24
20090261774
2009-10-22

Variable-flux motor drive system

#25
20090256518
2009-10-15

Vector control device of induction motor, vector control method of induction motor, and drive control device of induction motor

#26
20090224721
2009-09-10

Varying flux versus torque for maximum efficiency

#27
20080246429
2008-10-09

Controller of electric motor

#28
20080246363
2008-10-09

Controller of electric motor

#29
20080224651
2008-09-18

Method and system for controlling permanent magnet AC machines

#30
20080012521
2008-01-17

Servomotor current control method and servomotor

#31
20070222406
2007-09-27

Controller for motor

#32
20070200528
2007-08-30

Control device for permanent magnet synchronous motor

#33
20070063667
2007-03-22

Driving device of motor

#34
20050242759
2005-11-03

AC rotating electric machine control method and electrical power train system