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KR20040046214A - braking error sensing and displaying method of washing machine - Google Patents

braking error sensing and displaying method of washing machine Download PDF

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Publication number
KR20040046214A
KR20040046214A KR1020020074054A KR20020074054A KR20040046214A KR 20040046214 A KR20040046214 A KR 20040046214A KR 1020020074054 A KR1020020074054 A KR 1020020074054A KR 20020074054 A KR20020074054 A KR 20020074054A KR 20040046214 A KR20040046214 A KR 20040046214A
Authority
KR
South Korea
Prior art keywords
braking
washing machine
set value
displaying
sensing
Prior art date
Application number
KR1020020074054A
Other languages
Korean (ko)
Inventor
오민진
조인행
구본권
홍권기
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020020074054A priority Critical patent/KR20040046214A/en
Priority to CNB2006100865435A priority patent/CN100510234C/en
Priority to DE60336516T priority patent/DE60336516D1/en
Priority to CNB200610086544XA priority patent/CN100510235C/en
Priority to DE60336935T priority patent/DE60336935D1/en
Priority to JP2004505426A priority patent/JP2005525202A/en
Priority to US10/486,330 priority patent/US20050120492A1/en
Priority to EP03723464A priority patent/EP1504146B1/en
Priority to ES03723464T priority patent/ES2315491T3/en
Priority to DE60323827T priority patent/DE60323827D1/en
Priority to EP07000537A priority patent/EP1772545B1/en
Priority to PCT/KR2003/000960 priority patent/WO2003097917A1/en
Priority to EP07000539A priority patent/EP1772547B1/en
Priority to EP07000538.4A priority patent/EP1772546B1/en
Priority to AU2003230345A priority patent/AU2003230345B2/en
Priority to CNB2006100865420A priority patent/CN100513676C/en
Priority to CNB038009242A priority patent/CN1316102C/en
Publication of KR20040046214A publication Critical patent/KR20040046214A/en
Priority to US12/461,379 priority patent/US7913340B2/en
Priority to US12/461,380 priority patent/US7904984B2/en

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58—Indications or alarms to the control system or to the user

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

PURPOSE: A method for sensing and displaying abnormal braking of a washing machine is provided to prevent excessive rise of voltage and prevent damage in constitution of a circuit by sensing and displaying damage of constitution related to braking, and executing braking by another method. CONSTITUTION: A method for sensing and displaying abnormal braking of a washing machine comprises steps of deciding whether a negative-phase braking condition occurs(S21); executing negative-phase braking by converting a driving part into a second mode and driving a braking resistance by controlling a transistor(S22); sensing the power voltage and deciding whether the power voltage exceeds a set value(S23); executing braking by short-circuiting a three-phase power terminal of the driving part if the power voltage exceeds the set value(S24); conveying an abnormal state by a drive microcomputer through communication with a main microcomputer, driving an LCD(Liquid Crystal Display) and displaying abnormality of the braking resistance by a main microcomputer, and producing a warning sound by driving a buzzer(S25); and deciding whether normal negative-phase braking is executed if the power voltage doesn't exceed the set value and executing a general stroke(S26).

Description

세탁기의 제동이상 감지 및 표시방법{braking error sensing and displaying method of washing machine}Braking error sensing and displaying method of washing machine

본 발명은 세탁기에 관한 것으로서, 특히 세탁기의 제동이상 감지 및 표시방법에 관한 것이다.The present invention relates to a washing machine, and more particularly, to a method for detecting and displaying braking abnormality of a washing machine.

일반적인 세탁기의 구동회로는 도 1에 도시된 바와 같이, 상용교류전원을 정류하기 위한 정류부(11), 세탁기의 세탁조 또는 펄쉐이터 등에 회전력을 공급하기 위한 모터(12), 다수개의 IGBT(Insulating Gate Bipolar Transistor)를 구비한 인버터(Inverter)로 구성되어 상기 모터(12)에 3상(U/V/W) 전원을 공급하는 제1 모드 또는 모터(12)가 역상 제어되도록 즉, 모터의 회전에 의해 발전된 전압이 회로측으로 역기되도록하는 제2 모드로 동작하는 구동부(13), 정류부(11)의 출력을 소정레벨(5V)로 변압하여 출력하는 SMPS(Switching Mode Power Supply)(14), 상기 모터(12)의 회전속도를 검출하기 위한 속도센서(15), 상기 정류부(11)에서 출력된 전원전압 레벨을 검출하기 위한 전압 감지부(16), 상기 구동부(13)에서 역기된 모터(12) 발전전압을 열로 소모시켜 회로 손상을 방지하기 위한 제동저항(Rb), 제동저항(Rb)을 구동하기 위한 트랜지스터(T1), 상기 속도센서(15) 및 전압 감지부(16)의 출력을 참조하여 상기 구동부(13) 및 트랜지스터(T1)를 제어하는 드라이브 마이컴(17), 도어측에 설치되어 사용자가 도어를 여는 것을 감지하여 상기 드라이브 마이컴(17)에 알리기 위한 도어 스위치(도시 생략), 터치패널 또는 키입력부 등을 포함하고 사용자가 각종 동작명령을 입력하기 위한 사용자 인터페이스부(18), 세탁기 동작상태 등을 표시하기 위한 LCD(19), 부저(20), 상기 사용자 인터페이스부(18)를 통해 입력된 사용자 동작명령에 상응하도록 모터(12)를 포함한 각종 부하를 구동하기 위하여 상기 드라이브 마이컴(17)과 제어신호를 포함한 각종 데이터 통신을 수행하고 상기 드라이브 마이컴(17)과의 통신을 통해 전원전압의 이상을 검출하여 기설정된 경고 메시지 또는 부저음이 출력되도록 상기 LCD(19) 및 부저(20)를 구동하기 위한 메인 마이컴(21)을 포함한다.As shown in FIG. 1, the driving circuit of a general washing machine includes a rectifying unit 11 for rectifying a commercial AC power supply, a motor 12 for supplying rotational force to a washing tank or a pearl shaper of a washing machine, and a plurality of IGBTs (Insulating Gate). Inverter having a bipolar transistor, so that the first mode or the motor 12 for supplying three-phase (U / V / W) power to the motor 12 or the motor 12 is controlled in reverse phase. The driving unit 13 operating in the second mode to allow the generated voltage to flow back to the circuit side, a switching mode power supply (SMPS) 14 for transforming and outputting the output of the rectifying unit 11 to a predetermined level (5V), and the motor. A speed sensor 15 for detecting the rotational speed of the motor 12, a voltage detector 16 for detecting the power supply voltage level output from the rectifier 11, and a motor 12 countered by the driver 13. Braking resistor (R) to prevent circuit damage by dissipating generated voltage as heat b), a drive microcomputer for controlling the driving unit 13 and the transistor T1 with reference to outputs of the transistor T1 for driving the braking resistor Rb, the speed sensor 15 and the voltage sensing unit 16. 17, a door switch (not shown), a touch panel or a key input unit for detecting the user's opening of the door and informing the drive microcomputer 17 is installed at the door side, and the user inputs various operation commands. The user interface unit 18, the LCD 19 for displaying the operation state of the washing machine, the buzzer 20, various kinds including the motor 12 to correspond to the user operation command input through the user interface unit 18 In order to drive a load, a variety of data communication including a control signal is performed with the drive micom 17 and a warning message preset by detecting an abnormality of a power voltage through communication with the drive micom 17. Or a main microcomputer 21 for driving the LCD 19 and the buzzer 20 to output a buzzer sound.

이와 같이 구성된 세탁기에 있어, 종래기술에 따른 제동방법에 대하여 설명하면 다음과 같다.In the washing machine configured as described above, a braking method according to the related art will be described below.

먼저, 사용자가 사용자 인터페이스부(18)를 통해 세탁명령을 입력하면 메인 마이컴(21)이 이를 인식하고 드라이브 마이컴(17)으로 기설정된 세탁 알고리즘에 따른 부하들이 구동되도록 소정 제어신호를 전송한다.First, when a user inputs a washing command through the user interface unit 18, the main microcomputer 21 recognizes this and transmits a predetermined control signal to the drive microcomputer 17 so that loads according to a preset washing algorithm are driven.

따라서 드라이브 마이컴(17)은 구동부(13)를 제1 모드로 동작시켜 기설정된 세탁 알고리즘에 맞도록 속도센서(15)의 출력에 따라 모터(12)를 회전시키고 급수밸브, 배수밸브 등의 부하를 구동하여 세탁, 헹굼 및 탈수를 수행한다.Therefore, the drive microcomputer 17 operates the drive unit 13 in the first mode to rotate the motor 12 according to the output of the speed sensor 15 to meet the preset washing algorithm, and to load the water supply valve and the drain valve. Drive to wash, rinse and dehydrate.

한편, 메인 마이컴(21)은 현재 동작상태에 따라 LCD(19)를 제어하여 동작상태 등이 표시되도록 하고, 부저(20)를 제어하여 동작상태에 따른 경고음 등이 발생되도록 한다.On the other hand, the main microcomputer 21 controls the LCD 19 according to the current operating state to display the operating state, etc., and to control the buzzer 20 to generate a warning sound according to the operating state.

이때 세탁은 모터를 좌/우 교반 회전시키는 방식을 이용하므로 예를 들어, 우측 회전후 좌측으로 회전시키기 위해서는 먼저, 현재 모터를 급제동 해야 한다. 또한 탈수중 동작정지, 도어 오픈 등의 경우에도 현재 모터를 급제동 해야 한다.At this time, since the laundry uses a method of rotating the left and right stirring motors, for example, in order to rotate the motor to the left after the right rotation, the current motor must be braked first. Also, in case of operation stop during dewatering and door opening, the current motor must be braked rapidly.

따라서 드라이브 마이컴(17)은 상술한 급제동 조건이 발생한 경우, 먼저 구동부(13)를 제2 모드로 전환하여 역상제동이 이루어지도록 함과 동시에 트랜지스터(T1)을 제어하여 제동저항(Rb)을 구동시킴으로서 상기 역상제동에 의한 전력이 열로 소모되도록 하여 전압값이 내부회로의 손상을 초래할 수 있을 정도로 상승하는 것을 방지한다.Therefore, when the above-mentioned sudden braking condition occurs, the drive microcomputer 17 first switches the driving unit 13 to the second mode to perform reverse phase braking and controls the transistor T1 to drive the braking resistor Rb. The power caused by the reversed phase braking is consumed by heat, thereby preventing the voltage value from rising to a degree that may cause damage to the internal circuit.

그러나 제동저항(Rb)의 단선 등 이상이 발생한 경우, 드라이브 마이컴(17) 또는 메인 마이컴(21)이 이를 인식하지 못하고 상기 모터(12)에 의해 발전된 전력이 소모되지 못하므로 전압레벨이 계속 상승하여 회로구성의 손상을 초래할 수 있다.However, when an abnormality such as disconnection of the braking resistor Rb occurs, the drive microcomputer 17 or the main microcomputer 21 does not recognize this and the power generated by the motor 12 is not consumed. It may cause damage to the circuit configuration.

종래의 기술에 따른 세탁기는 제동 관련구성의 손상을 인식하지 못하고 역상제동을 수행하므로 전압 과다 상승에 의한 회로구성을 손상을 초래할 수 있는 문제점이 있다.The washing machine according to the related art does not recognize damage of the braking related configuration and performs reverse phase braking, which may cause damage to the circuit configuration due to excessive voltage increase.

따라서 본 발명은 상기한 종래의 문제점을 해결하기 위하여 안출한 것으로서, 제동 관련구성의 손상을 감지하여 표시함과 동시에 다른 방식으로 제동을 수행하여 전압 과다 상승을 방지함으로서 회로구성의 손상을 방지할 수 있도록 한 세탁기의 제동이상 감지 및 표시방법을 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above-mentioned problems, and it is possible to prevent damage to the circuit configuration by detecting the damage of the braking related configuration and displaying braking in a different manner and preventing excessive voltage rise. It is an object of the present invention to provide a method for detecting and displaying a brake abnormality of a washing machine.

도 1 일반적인 세탁기 구동회로의 구성을 나타낸 블록도1 is a block diagram showing the configuration of a general washing machine driving circuit

도 2는 본 발명에 따른 세탁기의 제동이상 감지 및 표시방법을 나타낸 플로우챠트2 is a flow chart showing a braking abnormality detection and display method of the washing machine according to the present invention.

- 도면의 주요부분에 대한 부호의 설명 --Explanation of symbols for the main parts of the drawings-

11: 정류부 12: 모터11: rectifier 12: motor

13: 모터 구동부 14: SMPS(Switching Mode Power Suply)13: Motor drive unit 14: Switching Mode Power Suply (SMPS)

15: 속도센서 16: 전압 감지부15: speed sensor 16: voltage detection unit

17: 드라이브 마이컴 18: 사용자 인터페이스부17: drive micom 18: user interface

19: LCD(Liquid Crystal Display) 20: 부저(Buzzer)19: Liquid Crystal Display (LCD) 20: Buzzer

21: 메인 마이컴21: main microcomputer

본 발명은 모터 전원의 위상을 반대로하여 모터 회전을 역상제동하고, 역상제동에 의해 역기되는 전력을 소모하여 전압 과다상승을 방지하기 위한 제동저항을 구비한 세탁기에 있어서, 세탁 또는 탈수행정중 기설정된 조건에 따라 역상제동을 수행하고 상기 제동저항을 동작시키는 단계와, 역상제동중 전원전압을 감지하는 단계와, 감지된 전원전압이 설정값을 초과하는지 판단하는 단계와, 전원전압이 설정값을 초과하면 모터 전원단자를 단락시키고 이상발생을 표시하는 단계를 포함함을 특징으로 한다.The present invention is a washing machine equipped with a braking resistor for reversing the phase of the motor power supply to brake the motor rotation and to prevent excessive voltage rise by consuming power reversed by the reverse phase braking. Performing reverse phase braking according to a condition and operating the braking resistor; detecting a power supply voltage during reverse phase braking; determining whether the detected power supply voltage exceeds a set value; and the power supply voltage exceeds a set value. And shorting the motor power terminal and indicating an abnormality.

이하, 첨부된 도면을 참조하여 본 발명에 따른 세탁기의 제동이상 감지 및 표시방법의 바람직한 일실시예를 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the braking abnormality detection and display method of the washing machine according to the present invention will be described in detail.

도 2는 본 발명에 따른 세탁기의 제동이상 감지 및 표시방법을 나타낸 플로우챠트이다.2 is a flowchart illustrating a braking abnormality detection and display method of a washing machine according to the present invention.

본 발명은 도 2에 도시된 바와 같이, 먼저, 메인 마이컴(21)이 역상제동 조건이 발생하는지 판단한다(S21).As shown in FIG. 2, the main microcomputer 21 first determines whether a reverse phase braking condition occurs (S21).

이때 역상제동 조건은 세탁중, 또는 탈수중에 발생할 수 있으며, 모터 방향전환에 따른 정상적인 제동과 도어 오픈, 동작정지 등 이상상황에 따른 제동이 있다.At this time, the reverse braking condition may occur during washing or dehydration, and there is a braking according to abnormal conditions such as normal braking and door opening and operation stopping due to the change of motor direction.

상기 판단결과(S21), 역상제동 조건이 발생되면, 메인 마이컴(21)은 해당 부하가 제어되도록 드라이브 마이컴(17)으로 제어신호를 출력한다.As a result of the determination (S21), when the reversed braking condition occurs, the main microcomputer 21 outputs a control signal to the drive microcomputer 17 so that the corresponding load is controlled.

따라서 드라이브 마이컴(17)은 먼저 구동부(13)를 제2 모드로 전환하여 역상제동이 이루어지도록 함과 동시에 트랜지스터(T1)을 제어하여 제동저항(Rb)을 구동한다(S22).Accordingly, the drive microcomputer 17 first switches the driving unit 13 to the second mode to perform reverse phase braking and controls the transistor T1 to drive the braking resistor Rb (S22).

이어서 드라이브 마이컴(17)은 전원전압을 감지하여 설정값을 초과하는지 판단한다(S23).Subsequently, the drive microcomputer 17 detects the power supply voltage to determine whether the set value is exceeded (S23).

이때 설정값은 정상적으로 제동저항(Rb)이 구동될 경우 전원전압이 상승할 수 있는 최고값으로 설정되는데, 세탁기의 모델별, 적용되는 부품의 특성에 따라 다르게 적용된다.At this time, the set value is set to the highest value at which the power supply voltage can rise when the braking resistor Rb is normally driven, and is applied differently according to the model of the washing machine and the characteristics of the component to be applied.

상기 판단결과(S23), 전원전압이 설정값을 초과하면, 제동저항(Rb)의 이상이발생한 것이므로 상기 구동부(13)의 3상 전원단자를 단락시켜 제동을 수행한다(S24).As a result of the determination (S23), when the power supply voltage exceeds the set value, an abnormality of the braking resistor (Rb) has occurred, and the braking is performed by shorting the three-phase power supply terminal of the driving unit 13 (S24).

이때 구동부(13)의 전원단자를 단락시킬 경우 역상제동에 비해 제동력이 떨어지지만 전압상승을 방지함과 동시에 제동이 가능하다.In this case, when the power terminal of the driving unit 13 is shorted, the braking force is lower than that of the reverse braking, but the braking is possible while preventing the voltage rise.

그리고 드라이브 마이컴(17)은 메인 마이컴(21)과 통신을 수행하여 이상상태를 알리고 그에 따라 메인 마이컴(21)은 LCD(19)를 구동하여 제동저항(R)의 이상을 표시하고, 부저(20)를 구동하여 경고음을 발생시킨다(S25).In addition, the drive micom 17 communicates with the main micom 21 to inform the abnormal state, and accordingly, the main micom 21 drives the LCD 19 to display an abnormality of the braking resistor R, and the buzzer 20 ) To generate a warning sound (S25).

한편, 상기 판단결과(S21) 역상제동 조건이 발생하지 않거나, 상기 판단결과(S23) 전원전압이 설정값을 초과하지 않으면 정상적인 역상제동이 이루어지는 것으로 판단하고 일반 행정 즉, 설정된 알고리즘에 따른 행정을 수행한다(S26).On the other hand, if the determination result (S21) reverse phase braking conditions do not occur, or if the determination result (S23) the power supply voltage does not exceed the set value, it is determined that the normal reverse phase braking is performed and performs the normal stroke, that is, the stroke according to the set algorithm. (S26).

본 발명은 역상제동시 제동관련 부품의 이상을 감지하고 이를 표시함과 동시에 전원단자 단락에 의해 제동을 수행하므로 과다 전압 상승에 따른 세탁기 구성부품의 손상을 방지하여 제품의 신뢰성을 향상시킬 수 있는 효과가 있다.The present invention detects the abnormality of the brake-related parts during reverse braking and displays the same, and performs braking by short-circuit of the power supply terminal, thereby preventing damage to the washing machine components due to excessive voltage increase and improving the reliability of the product. There is.

Claims (3)

모터 전원의 위상을 반대로하여 모터 회전을 역상제동하고, 역상제동에 의해 역기되는 전력을 소모하여 전압 과다상승을 방지하기 위한 제동저항을 구비한 세탁기에 있어서,In a washing machine provided with a braking resistor for reversing the phase of the motor power supply to brake the motor rotation in reverse and consuming power reversed by the reverse phase braking to prevent excessive voltage rise. 세탁 또는 탈수행정중 기설정된 조건에 따라 역상제동을 수행하고 상기 제동저항을 동작시키는 단계;Performing reverse phase braking according to a predetermined condition during washing or dehydrating operation and operating the braking resistor; 상기 역상제동중 전원전압을 감지하는 단계;Sensing a power supply voltage during the reverse phase braking; 상기 감지된 전원전압이 설정값을 초과하는지 판단하는 단계;Determining whether the detected power supply voltage exceeds a set value; 상기 전원전압이 설정값을 초과하면 모터 전원단자를 단락시키고 이상발생을 표시하는 단계를 포함하는 세탁기의 제동이상 감지 및 표시방법.Braking abnormality detection and display method of the washing machine comprising the step of shorting the motor power terminal and indicating the occurrence of abnormality when the power supply voltage exceeds the set value. 제1 항에 있어서,According to claim 1, 상기 설정값은 제동저항 정상동작시 전원전압 최고치임을 특징으로 하는 세탁기의 제동이상 감지 및 표시방법.The set value is a braking abnormality detection and display method of the washing machine, characterized in that the power supply voltage maximum value during normal operation of the braking resistor. 제1 항에 있어서,According to claim 1, 상기 이상발생을 표시하는 단계는 제동저항의 이상발생을 표시하는 단계임을 특징으로 하는 세탁기의 제동이상 감지 및 표시방법.The step of displaying the abnormal occurrence is a step of displaying the abnormal occurrence of the braking resistor, the braking abnormality detection and display method of the washing machine.
KR1020020074054A 2002-05-15 2002-11-26 braking error sensing and displaying method of washing machine KR20040046214A (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
KR1020020074054A KR20040046214A (en) 2002-11-26 2002-11-26 braking error sensing and displaying method of washing machine
DE60323827T DE60323827D1 (en) 2002-05-15 2003-05-15 METHOD FOR CONTROLLING A MOTOR DRIVEN WASHING MACHINE AND CORRESPONDING CONTROL SYSTEM
EP07000537A EP1772545B1 (en) 2002-05-15 2003-05-15 Method of controlling motor-driven washing machine and control system for the same
CNB200610086544XA CN100510235C (en) 2002-05-15 2003-05-15 Method of controlling motor-driven washing machine and control system for the same
DE60336935T DE60336935D1 (en) 2002-05-15 2003-05-15 Method and control system for controlling a motor-driven washing machine
JP2004505426A JP2005525202A (en) 2002-05-15 2003-05-15 Method and apparatus for controlling motor-driven washing machine
US10/486,330 US20050120492A1 (en) 2002-05-15 2003-05-15 Method of controlling motor-driven washing machine and control system for the same
EP03723464A EP1504146B1 (en) 2002-05-15 2003-05-15 Method of controlling motor-driven washing machine and control system for the same
ES03723464T ES2315491T3 (en) 2002-05-15 2003-05-15 METHOD FOR CONTROLLING A MOTOR DRIVEN WASHING MACHINE AND CONTROL SYSTEM FOR THE SAME.
CNB2006100865435A CN100510234C (en) 2002-05-15 2003-05-15 Method of controlling motor-driven washing machine and control system for the same
DE60336516T DE60336516D1 (en) 2002-05-15 2003-05-15 Method and control system for controlling a motor-driven washing machine
PCT/KR2003/000960 WO2003097917A1 (en) 2002-05-15 2003-05-15 Method of controlling motor-driven washing machine and control system for the same
EP07000539A EP1772547B1 (en) 2002-05-15 2003-05-15 Method of controlling motor-driven washing machine and control system for the same
EP07000538.4A EP1772546B1 (en) 2002-05-15 2003-05-15 Method of controlling motor-driven washing machine and control system for the same
AU2003230345A AU2003230345B2 (en) 2002-05-15 2003-05-15 Method of controlling motor-driven washing machine and control system for the same
CNB2006100865420A CN100513676C (en) 2002-05-15 2003-05-15 Method of controlling motor-driven washing machine and control system for the same
CNB038009242A CN1316102C (en) 2002-05-15 2003-05-15 Method of controlling motor-driven washing machine and control system for the same
US12/461,379 US7913340B2 (en) 2002-05-15 2009-08-10 Method of controlling motor-driven washing machine and control system for the same
US12/461,380 US7904984B2 (en) 2002-05-15 2009-08-10 Method of controlling motor-driven washing machine and control system for the same

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990016085A (en) * 1997-08-13 1999-03-05 전주범 Broadcast Channel Automatic Search and Switching Method of Broadcast Complex Receiver System
KR19990031048A (en) * 1997-10-08 1999-05-06 구자홍 Safety device of discharge circuit for braking of washing machine
KR20010037080A (en) * 1999-10-13 2001-05-07 구자홍 Method for controlling over current in an electric washing machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990016085A (en) * 1997-08-13 1999-03-05 전주범 Broadcast Channel Automatic Search and Switching Method of Broadcast Complex Receiver System
KR19990031048A (en) * 1997-10-08 1999-05-06 구자홍 Safety device of discharge circuit for braking of washing machine
KR20010037080A (en) * 1999-10-13 2001-05-07 구자홍 Method for controlling over current in an electric washing machine

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