公开(公告)号：US11821131B2

公开(公告)日：2023-11-21

申请号：US17544271

申请日：2021-12-07

Applicant: LG ELECTRONICS INC.

Inventor： Kwang Sik Kim ,  Han Su Jung ,  Ha Min Song

IPC: H02P27/04 ,  D06F37/30 ,  D06F34/08 ,  H02P27/06 ,  D06F34/10 ,  H02P27/02 ,  H02P23/06 ,  H02P23/26 ,  H02P25/028 ,  H02P1/26 ,  H02P6/18 ,  D06F103/04 ,  D06F103/46

CPC classification number: D06F37/304 ,  D06F34/08 ,  D06F34/10 ,  H02P1/26 ,  H02P6/18 ,  H02P23/06 ,  H02P23/26 ,  H02P25/028 ,  H02P27/02 ,  H02P27/06 ,  D06F2103/04 ,  D06F2103/46 ,  H02P2203/03 ,  H02P2209/05

Abstract: Disclosed is a clothes treating apparatus and a control method thereof. Specifically, the clothes treating apparatus may include an inverter configured to convert a direct current (DC) input into an alternating current (AC) output and provide the AC output to the motor, and a controller configured to control the inverter in relation to driving of the motor.

公开(公告)号：US11165373B2

公开(公告)日：2021-11-02

申请号：US16630374

申请日：2018-07-05

Applicant: LG Electronics Inc.

Inventor： Hansu Jung ,  Kwang Sik Kim ,  Chungill Lee

IPC: H02P6/18 ,  H02P21/22

Abstract: The present disclosure relates to a motor driving apparatus and, more specifically, to a motor driving apparatus which allows a maximum torque operation by correcting an angle error occurring during quick acceleration of a motor in a sensorless system. The motor driving apparatus comprises: an inverter for driving a motor, using an alternating current voltage; and a control unit for outputting a PWM signal for controlling an operation of a switching element included in the inverter. Here, the control unit determines an inductance parameter used to calculate a speed command value for determining a duty ratio of a PWM signal, and determines whether the motor is being accelerated, on the basis of a current change measured from the inverter. When the motor is being accelerated, the control unit enables a maximum torque operation by reducing an angle error of a rotor through a correction of reducing a previously-determined inductance parameter.

公开(公告)号：US11863094B2

公开(公告)日：2024-01-02

申请号：US17547663

申请日：2021-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Ha Min Song ,  Ki Wook Lee ,  Kwang Sik Kim

IPC: H02P27/06 ,  H02P21/18

CPC classification number: H02P27/06 ,  H02P21/18

Abstract: Disclosed is a motor control apparatus and a motor control method to estimate a stator resistance of a motor for sensorless control of the motor.

公开(公告)号：US11926951B2

公开(公告)日：2024-03-12

申请号：US17544238

申请日：2021-12-07

Applicant: LG ELECTRONICS INC.

Inventor： Ki Wook Lee ,  Han Su Jung ,  Kwang Sik Kim

IPC: D06F39/02 ,  D06F34/08 ,  D06F37/30 ,  H02P27/04 ,  H02P27/06 ,  D06F103/46

CPC classification number: D06F37/304 ,  D06F34/08 ,  H02P27/045 ,  H02P27/06 ,  D06F2103/46

Abstract: Disclosed are a motor control apparatus and a motor control method. Specifically, the motor control apparatus includes an inverter part configured to convert a direct current (DC) input into an alternating current (AC) output and provide the AC output to the motor, and a controller configured to control the inverter part in relation to driving of the motor, and the controller controls the inverter part to apply a first pattern voltage having the same phase to the motor and then apply a second pattern voltage having different phases to the motor.

公开(公告)号：US11784601B2

公开(公告)日：2023-10-10

申请号：US17547719

申请日：2021-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Kwang Sik Kim ,  Ha Min Song ,  Ki Wook Lee

IPC: H02P27/06 ,  H02P21/18

CPC classification number: H02P27/06 ,  H02P21/18

Abstract: Disclosed is a motor control apparatus, a motor control system, and a motor control method that estimate a stator resistance and a rotor position for sensorless control of a motor.

公开(公告)号：US11736046B2

公开(公告)日：2023-08-22

申请号：US17565908

申请日：2021-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Ki Wook Lee ,  Ha Min Song ,  Kwang Sik Kim

IPC: H02P23/12 ,  H02P6/22 ,  H02P6/182 ,  D06F37/30 ,  D06F34/08 ,  H02K11/225

CPC classification number: H02P6/22 ,  D06F34/08 ,  D06F37/304 ,  H02K11/225 ,  H02P6/182

Abstract: Disclosed is a motor control apparatus including an inverter part configured to convert DC power into AC power and provide the AC power to a motor, and a controller configured to control driving of the motor by using the inverter part, the controller configured to identify a stop position of a rotor in previous driving of the motor, and control the inverter part to apply an input signal of a specific pattern to the motor according to a start of driving the motor, wherein a phase of the input signal of the specific pattern is determined on the basis of the stop position of the rotor. Other example embodiments may be provided.

公开(公告)号：US20220190768A1

公开(公告)日：2022-06-16

申请号：US17547663

申请日：2021-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Ha Min Song ,  Ki Wook Lee ,  Kwang Sik Kim

IPC: H02P27/06 ,  H02P21/18

Abstract: Disclosed is a motor control apparatus and a motor control method to estimate a stator resistance of a motor for sensorless control of the motor.