公开(公告)号：US11603616B2

公开(公告)日：2023-03-14

申请号：US15728725

申请日：2017-10-10

Applicant: LG ELECTRONICS INC.

Inventor： Minho Jang ,  Jaegwang Bae ,  Hoonbong Lee

IPC: D06F34/18 ,  D06F33/32 ,  D06F23/02 ,  D06F37/06 ,  D06F37/26 ,  D06F37/38 ,  D06F103/04 ,  D06F103/26 ,  D06F103/38 ,  D06F103/46 ,  D06F105/00 ,  D06F105/46 ,  D06F105/48 ,  D06F105/58 ,  D06F105/60 ,  D06F33/40 ,  D06F33/44

Abstract: A washing machine and a method of controlling the same are disclosed. The amount of laundry that is introduced into the washing machine is measured using gravity and inertia applied during the operation of the motor, whereby it is possible to precisely calculate the amount of laundry and to minimize the effects of the initial position of the laundry and the movement of the laundry. In addition, the current value of the motor that is operated is used to measure the amount of laundry without a sensor. Furthermore, the amount of laundry is measured at the rotational speed of the motor at which the laundry clings to the drum, whereby it is possible to minimize an error due to the movement of the laundry to thus improve accuracy. Moreover, it is possible to determine the amount of laundry within a short time. Consequently, it is easy to commence the spin-drying operation, thereby reducing washing time and saving energy.

公开(公告)号：US09897562B2

公开(公告)日：2018-02-20

申请号：US14735654

申请日：2015-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Hoonbong Lee ,  Junghun Kim

IPC: D06F58/28 ,  G01N27/04

CPC classification number: G01N27/048 ,  D06F2058/2819 ,  G01N27/045

Abstract: A dryness sensing circuit and a dryness sensing method are provided. The dryness sensing circuit and the dryness sensing method set a time constant of a resistor and capacitor short for liquidity of dryness determination algorithm and minimize a noise effect of a power supply.

公开(公告)号：US09783920B2

公开(公告)日：2017-10-10

申请号：US14458602

申请日：2014-08-13

Applicant: LG ELECTRONICS INC.

Inventor： Hoonbong Lee ,  Hansu Jung ,  Suncheol Bae

IPC: G05B13/00 ,  D06F39/00 ,  D06F58/28 ,  D06F33/02

CPC classification number: D06F39/003 ,  D06F33/02 ,  D06F58/28 ,  D06F2058/2861 ,  D06F2058/2877 ,  D06F2202/10 ,  D06F2202/12 ,  Y02B40/72

Abstract: A method is provided for controlling a laundry treating apparatus. The method may include controlling the drum to accelerate the drum to rotate at a first speed, applying a brake to stop the drum, accelerating the drum to a second speed, sensing a current being applied to the motor while the drum is accelerated to the second speed, and determining a laundry amount based on the sensed current.

公开(公告)号：US09745685B2

公开(公告)日：2017-08-29

申请号：US14048892

申请日：2013-10-08

Applicant: LG ELECTRONICS INC.

Inventor： Minho Jang ,  Kyunghoon Kim ,  Hoonbong Lee

IPC: D06F37/30 ,  D06F39/00

CPC classification number: D06F37/304 ,  D06F39/003 ,  D06F2202/12 ,  D06F2204/065

Abstract: Disclosed are a laundry treatment machine and a method of operating the same. The method of operating the laundry treatment machine that processes laundry via rotation of a wash tub includes accelerating a rotational velocity of the tub during an accelerated rotating section, rotating the tub at a constant velocity during a constant velocity rotating section, and determining an amount of laundry in the tub based on a first output current flowing through a motor that is used to rotate the tub during the accelerated rotating section and a second output current flowing through the motor during the constant velocity rotating section. This ensures efficient sensing of amount of laundry.

公开(公告)号：US09637852B2

公开(公告)日：2017-05-02

申请号：US14067762

申请日：2013-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Hamin Song ,  Hansu Jung ,  Hoonbong Lee

IPC: D06F37/20 ,  D06F33/02

CPC classification number: D06F37/203 ,  D06F33/02 ,  D06F2202/10 ,  D06F2204/065 ,  D06F2222/00

Abstract: Disclosed are a laundry treatment machine and a method of operating the same. The method of operating a laundry treatment machine includes rotating a drum at a first velocity, forcibly vibrating the drum using a forced vibration generation signal during a first velocity rotating section, and determining whether to accelerate or decelerate the drum after forced vibration. Through this method, laundry position may be determined.

公开(公告)号：US09828718B2

公开(公告)日：2017-11-28

申请号：US14458590

申请日：2014-08-13

Applicant: LG ELECTRONICS INC.

Inventor： Hoonbong Lee ,  Chungill Lee ,  Hansu Jung

IPC: G05B13/00 ,  D06F39/00 ,  D06F33/02

CPC classification number: D06F39/003 ,  D06F33/02 ,  D06F2202/10 ,  D06F2202/12 ,  D06F2204/06 ,  D06F2204/08

Abstract: A method may be provided for controlling a laundry treating apparatus. A first speed rotating may control the drum to accelerate the drum to rotate at a first speed, a braking may apply a brake to stop the drum, a second speed accelerating may accelerate the drum to a second speed, a current sensing may sense a current being applied to the motor during the drum is accelerated to the second speed, and a laundry amount determining may determine a laundry amount based on the current sensed in the current sensing.

公开(公告)号：US09708746B2

公开(公告)日：2017-07-18

申请号：US14535780

申请日：2014-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Minho Jang ,  Hoonbong Lee ,  Hansu Jung

IPC: D06F37/30 ,  D06F33/02 ,  H02P6/22 ,  H02P1/16 ,  H02P6/18 ,  H02P21/34 ,  H02P6/21

CPC classification number: D06F37/304 ,  D06F33/02 ,  D06F2202/065 ,  D06F2202/10 ,  D06F2202/12 ,  D06F2204/065 ,  D06F2222/00 ,  H02P1/16 ,  H02P6/18 ,  H02P6/21 ,  H02P6/22 ,  H02P21/34 ,  Y02B40/52

Abstract: A laundry treatment machine includes a drum, a motor to rotate the drum, and a driving unit to drive the motor, wherein the driving unit includes an inverter to convert direct current (DC) voltage into alternating current (AC) voltage and to output the AC voltage to the motor and an inverter controller to control the inverter to supply an alignment current to the motor so as to align the motor during a starting operation of the motor and to supply a torque current for rotating the motor to the motor together with the alignment current after the motor is aligned. Such a laundry treatment apparatus prevents a reverse rotation phenomenon of the drum due to load.

公开(公告)号：US11459683B2

公开(公告)日：2022-10-04

申请号：US16643038

申请日：2018-08-16

Applicant: LG ELECTRONICS INC.

Inventor： Moonsuk Choi ,  Hoonbong Lee

IPC: D06F33/32 ,  D06F34/08 ,  D06F34/16 ,  D06F103/26 ,  D06F103/18 ,  D06F103/04 ,  D06F103/46 ,  D06F103/02 ,  D06F103/24 ,  D06F105/48

Abstract: Disclosed is a control method of a laundry apparatus comprising: a drum provided to hold clothes; and a drive unit configured to rotate the drum, the control method comprising: an accelerating step for accelerating the drum; a decelerating step for decelerating the drum; and a laundry load sensing step for sensing the laundry load of the clothes held in the drum based on a measured acceleration value of the drive unit during the accelerating step and a measured deceleration value of the drive unit during the decelerating step.

公开(公告)号：US11168425B2

公开(公告)日：2021-11-09

申请号：US15718217

申请日：2017-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Hoonbong Lee ,  Minho Jang ,  Jaegwang Bae

IPC: D06F35/00 ,  D06F34/18 ,  D06F37/26 ,  D06F39/04 ,  D06F39/08 ,  D06F37/22 ,  D06F39/14 ,  D06F37/06 ,  D06F37/30 ,  D06F37/38 ,  D06F39/02 ,  D06F39/00 ,  D06F23/02 ,  D06F33/00 ,  D06F34/28

Abstract: An amount of laundry that is introduced into a washing machine is determined by identifying gravitational and inertia forces applied during the operation of a motor, whereby it is possible to precisely calculate the amount of laundry and to minimize the effects of the initial position of the laundry and the movement of the laundry. In addition, the current value of the motor that is operated is used to measure the amount of laundry without a sensor. Furthermore, the amount of laundry is measured at the rotational speed of the motor at which the laundry clings to the drum, whereby it is possible to minimize error due to the movement of the laundry to thus improve accuracy. Moreover, it is possible to determine the amount of laundry within a short time. Consequently, it is easy to commence the spin-drying operation, thereby reducing washing time and saving energy.

公开(公告)号：US10907287B2

公开(公告)日：2021-02-02

申请号：US15718315

申请日：2017-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Hoonbong Lee ,  Minho Jang ,  Jaegwang Bae

IPC: D06F33/00 ,  D06F34/18 ,  D06F23/02 ,  D06F37/22 ,  D06F37/30 ,  D06F34/28 ,  D06F37/06 ,  D06F37/26 ,  D06F37/38 ,  D06F39/00 ,  D06F39/02 ,  D06F39/04 ,  D06F39/08 ,  D06F39/14

Abstract: An amount of laundry that is introduced into a washing machine is calculated using gravity and inertia applied during the operation of a motor, whereby the amount of laundry is precisely measured and effects of the initial position of the laundry and the movement of the laundry are minimized. In addition, a measured current of the operated motor is used to determine the amount of laundry without a sensor. Furthermore, the rotational speed of the motor is controlled stepwise from a low speed to eliminate variation due to vibration. Moreover, the characteristics of gravity in the low-speed maintenance period are used to effectively calculate the amount of laundry, and the characteristics of inertia in the acceleration period are also used, whereby it is possible to precisely determine the amount of laundry. Consequently, it is easy to commence the spin-drying operation, thereby reducing washing time and saving energy.