Lg Electronics Inc.

Hoonbong Lee

Jonghee Han

Daewoong Kim

Hoyoung Kim

Yanghwan Kim

Koonseok Lee

Junho Ahn

Minho Jang

Hansu Jung

Jaegwang Bae

Bongmun Jang

Joongkeun Lee

Daegeun Seo

Dalho Cheong

Donghyun Kim

Woonghyun Lee

Seungje Park

Hyunwook Moon

Seogho Go

Yongwoon Jang

Moonseok Seo

Kyunghoon Kim

Kangwoon Cheon

Chungill Lee

Jungho Ahn

Wansoo Kim

Yong-Tae Kim

Kuyoung Son

Minchel Kim

Sunghun Sim

Junghun Kim

Hyoungjun Park

Chansung Jeon

Suncheol Bae

Heungsik Choi

Daeyong Kang

Bosun Chung

Jongmi Choi

Museung Kim

Moonsuk Choi

Wookjin Lee

Kyungeun Jo

Sangil Hwang

Shinjae Jeong

Seonghwan Kang

Sangwook Seo

Daehwan Park

Jeongsang Seo

Jaehyeok Choi

Sunhee Kang

Jinseong Hwang

Hamin Song

Yongtae Kwon

Hoseon Choi

Gilsup Jeong

Chulkyu Park

Deagui Lee

Munseok Seo

Jeongwon Lee

Wonchul Jeong

Donghun Youn

Hyunjung Kwak

Sangseog Kang

Younghyun Kang

Youngtae Kwon

Jaekuk Kwon

Byeongho Min

Kicheol Shin

Yeongjoo Cheon

Dongchun Shin

Taeyun Lim

Juyoung Cha

Sungyong Heo

Minkyeong Lee

Jinyul Hu

Yonghun Kim

Eunkyung Seo

Younghyo Son

Sangmin Yeo

Younghoon Joo

Munho Choi

Jimoon Jung

Kim Museung

Jeon Chansung

Kang Seonghwan

Choi Jongmi

Kang Daejong

Park Hyoungiun

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.

Washing machine and method of controlling the same

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.

Control method of laundry apparatus

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.

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.

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 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, a current value of the motor that is operated is used to measure the amount of laundry without a sensor. Furthermore, precision in determining the amount of laundry is improved, and the amount of laundry is determined within a short time. Consequently, it is easy to commence the spin-drying operation, thereby reducing washing time and saving energy.

Provided is a network system. The network system includes: at least one unit selected from an energy receiving unit receiving energy and an energy management unit managing the energy receiving unit. An energy usage amount or energy usage rate of the energy receiving unit is adjusted; an energy usage amount or usage rate when the unit is controlled based on information relating to at least an energy rate is less than that when the unit is controlled without the base of information relating to at least an energy rate; the energy receiving unit comprises a plurality of components; and an operation of one component among the plurality of components is controlled based on the energy rate related information.

Network system

Provided is a component for a network system. The component for a network system which is communicable with the other component includes a communication unit for communicating with the other component, an input part for inputting a command related to an operation of the component, and a control part for controlling the operation of the component. The component includes a power saving function in which the component is operable on the basis of energy information.

Component for a network system including a power saving function

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.

Dryness sensing circuit and sensing method of dryness

A network system is provided. The network system includes: at least one component selected from an energy receiving unit receiving energy and an energy management unit managing the energy receiving unit. The energy receiving unit or the energy management unit receives energy rate related information; an energy usage amount or a usage rate of when the component is controlled on the basis of at least the energy rate related information is less than that of when the component is controlled without the basis of at least energy rate related information; if the energy rate related information is high cost information, a function of one component constituting the energy receiving unit is limited; and an operating time or an output of the energy receiving unit is adjusted in correspondence to the limited function of one component.

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.

Laundry treating apparatus and method for controlling the same

Disclosed are a laundry treatment machine and a method of operating the same. The method of operating the laundry treatment machine includes performing a primary sensing of an amount of laundry within the tub, supplying water to a first water level within the tub, sensing the level of water within the tub, performing a secondary sensing of the amount of laundry within the tub, and judging whether the laundry includes dry laundry or wet laundry using the primarily sensed amount of laundry, the secondarily sensed amount of laundry, and the sensed water level value. This method ensures efficient implementation of sensing of amount of laundry.

Laundry treatment machine and method of operating the same

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.

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.

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.

Motor driving apparatus and laundry treatment machine including the same

Consumption unit for effectively managing energy sources

Growing community of inventors

Seoul, South Korea

Hoonbong Lee