EP1108083A1 - Method for determining the load weight of a washing drum and washer/drier for carrying out the method - Google Patents

Method for determining the load weight of a washing drum and washer/drier for carrying out the method

Info

Publication number
EP1108083A1
EP1108083A1 EP99938243A EP99938243A EP1108083A1 EP 1108083 A1 EP1108083 A1 EP 1108083A1 EP 99938243 A EP99938243 A EP 99938243A EP 99938243 A EP99938243 A EP 99938243A EP 1108083 A1 EP1108083 A1 EP 1108083A1
Authority
EP
European Patent Office
Prior art keywords
washing
rotation angle
electric motor
drum
control
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP99938243A
Other languages
German (de)
French (fr)
Other versions
EP1108083B1 (en
Inventor
Jörg SKRIPPEK
Reinhard Heyder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to SI9930461T priority Critical patent/SI1108083T1/en
Publication of EP1108083A1 publication Critical patent/EP1108083A1/en
Application granted granted Critical
Publication of EP1108083B1 publication Critical patent/EP1108083B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/24—Spin speed; Drum movements
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/44—Current or voltage
    • D06F2103/46—Current or voltage of the motor driving the drum
    • 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
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D06F2105/48—Drum speed
    • 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
    • D06F2105/56—Remaining operation time; Remaining operational cycles

Definitions

  • the invention relates to a method for determining the loading weight of a washing drum in a washing machine or in a washer dryer, which is driven directly by an electric motor, which is controlled by an electronic control or regulating device, and an electrical machine in the form of a washing machine or a washer dryer Implementation of a method according to the invention
  • washing machines are known with a washing drum which is driven by an electric motor about a horizontal axis of rotation and has a closable loading opening arranged on the jacket side.
  • the washing drum can be loaded with washing when it is stationary in a rotating position in which the loading opening is at the top is an electronic control or regulating device for controlling the electric motor which drives the drum is designed such that it brings the drum to a standstill in the rotational position in which its charging opening is located above.
  • a method is known from DE 44 31 846 A1 for the control and / or regulation of a washing machine or a washer-dryer known which for a washing drum when it rotates at a speed at which the wash is distributed over its inner circumference, the imbalance of washing distributed unevenly around the drum circumference and so on he calculates the total weight of the washing contained in the washing drum (load) and controls or regulates the speed of a motor driving the washing drum as a function of these two values.
  • the procedure is carried out with a loaded (filled with washing) washing drum if it is at least with the " Application speed "rotates The" application speed "is the speed of the washing drum at which the wash is distributed around its inner circumference
  • washing drum high imbalance moments can occur because these are not taken into account by the known method
  • a complicated expensive electronic device for detecting angular accelerations of the washing drum is known from DE 195 46 185 A1
  • a washing machine is known, the washing drum of which is driven directly by an electric motor, not via an anti-friction device, but directly for this purpose , and the
  • the stator of the electric motor is non-rotatably attached to the rear wall of the washing drum housing (suds container). This ensures that the motor synchronizes precisely with the washing drum
  • the object of the invention is to provide a method and a device for an electrical machine with a rotatable washing drum, in which, even when the machine is not rotating with operating speed, in a simple and inexpensive manner and exactly the loading of the washing drum (the weight of the washing contained in the washing drum) can be determined and used for any purpose, in particular for displaying the loading weight and / or for controlling or regulating the speed and / or acceleration of the washing drum and / or the duration of treatment of the washing item, which is in the Washing drum is located
  • FIG. 1 schematically shows an axial section of an electrical machine in the form of a washing machine or a washer dryer with an electronic control or regulating device according to the invention
  • 2 schematically shows a cross section of a laundry drum of the machine from FIG. 1 with a laundry item lying in the deepest area therein to describe a first embodiment of the method according to the invention
  • FIG. 3 schematically shows a cross section of the laundry drum from FIG their deepest area laundry item to describe a second embodiment of the method according to the invention.
  • the electrical machine shown schematically in FIG. 1 in the form of a washing machine or a washer-dryer contains a laundry drum 2, which is rotatably mounted in a tub 4 by bearings 6 on the back and on the
  • Front can be loaded with laundry 12 through a door 8 provided in the tub 4 and a loading opening formed in the front end 10.
  • a rotor 14 of an electric motor 16 is directly connected to a drive shaft 8 of the laundry drum 2 in a rotationally fixed manner, so that no rotational position difference can occur between the rotor 14 and the drive shaft 18.
  • a stator 20 of the electric motor 16 is on the
  • the electric motor 16 is fed and controlled or regulated by an electronic control or regulating device 24 via lines 28.
  • the electric motor 16 is an electronically commutated direct current motor or an electrically switched reluctance motor or an electric motor, in which the control or regulating device 24 can determine the rotational angle posmons of the rotor 14 and thus also the laundry drum 2 on the basis of commutation steps or control pulses which it must supply to the electric motor 16 for its power supply, or which has fluctuations in the current consumption depending on its rotational positions, similar to a reluctance motor which can be detected by the control or regulating device 24.
  • a tachometer generator 26 could also be used in such a case.
  • Electric motors 16 is used to detect the respective rotational angle position and from an initial rotational angle position to one
  • An additional sensor preferably a tachometer generator 26, which supplies the control or regulating device 24 with the appropriate signals, is required for the final angular position of the rotary drum.
  • Power supply and electrical signal lines 28 connect the control or regulating device 24 to the electric motor 16.
  • Power supply and / or electrical signal lines 29 connect the control or regulating device 24 to the additional device that may be used, for example the tachometer generator 26.
  • control or regulating device 24 is a position detection device for detecting rotation angle positions
  • the electric motor 16 is an electronically commutated direct current motor or an electronically switched reluctance motor or a similar motor.
  • the motor principles mentioned enable a relatively high resolution, i.e. very precise position detection device in the control or regulating device 24 for determining the rotor angular position and rotor angular velocity. With the help of such a position detection device, the angle of rotation position and the angle of rotation of the laundry drum 2 can be determined relatively precisely at any time.
  • an indirect drive V-belt between the electric motor and
  • the invention combines the determination of the angle of rotation of the laundry drum 2 (rotor 14 of the electric motor 16) with a measurement of the current consumption of the electric motor 16.
  • FIG. 2 shows the laundry drum 2 in cross section in an O ° angle of rotation position, in which the entire laundry 12 loaded therein lies in the lowest region of the laundry drum 2.
  • the center of gravity of the laundry 12 lies vertically below the drum axis of rotation 30.
  • the drum 2 of the electric motor 16 moves from the 0 ° angle of rotation position by a defined, predetermined angle of rotation distance 32, which is stored in the control or regulating device 24, into an x ° Angle of rotation position and thus the laundry 12 has been raised into a raised position until shortly before its point of fall is controlled by the control or regulating device 24 in the x ° Angle of rotation position measured the current consumption of the electric motor 16.
  • the motor current is proportional to the torque in the x ° rotation angle position and thus a measure or value for the weight of the laundry 12 (loading of the laundry drum 2).
  • drivers 34 can be provided in a known manner for rotationally carrying the laundry 12.
  • a defined, predetermined, maximum current value is stored in the electronic control or regulating device 24.
  • the control or regulating device 24 measures the angle of rotation distance "x" by which the washing drum 2 must be rotated by the electric motor 16 starting from the 0 ° angle of rotation position until the current consumption of the motor has reached the stored current value.
  • the angular distance traveled is " x "a measure of the load or the weight of the laundry 12 in the laundry drum 2.
  • the entire laundry is in the lower region of the laundry drum 2 in the 0 o -rotation angle position. It is then brought by turning the laundry drum 2 into a raised position laterally offset from the drum axis of rotation 30, which in the application example according to FIG 2 is defined by the x ° angle of rotation position and, in the application example according to FIG. 3, by the angle of rotation distance “x”.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

A method and appliance for determining the angular position of a laundry drum and a power consumption of an electric motor driving the drum to derive therefrom a laundry weight in the drum includes directly driving the drum with the motor from a lower laundry position to a raised position where a laundry center of gravity is offset from a rotation axis to produce a loading weight from the driving current of the electric motor measured when the raised position is reached. Alternatively or additionally, the drum is turned until the controller detects a power consumption of the electric motor corresponding to a stored maximum current value to derive a weight of the laundry from a signal corresponding to the angular distance. The controller stores a predetermined, defined maximum current value and measures a power consumption of the electric motor.

Description

Verfahren zur Ermittlung des Beladungsgewichts einer Wäschetrommel und Wäschebehandlungsmaschine zur Durchführung des VerfahrensMethod for determining the loading weight of a laundry drum and laundry treatment machine for carrying out the method
Die Erfindung betrifft ein Verfahren zur Ermittlung des Beladungsgewichts einer Waschetrommel in einer Waschmaschine oder in einem Waschetrockner, welche von einem Elektromotor direkt angetrieben wird, welcher von einer elektronischen Steuer- oder Regeleinrichtung angesteuert wird, und eine elektrische Maschine in Form einer Waschmaschine oder eines Waschetrockners zur Durchfuhrung eines erfindungsgemäßen VerfahrensThe invention relates to a method for determining the loading weight of a washing drum in a washing machine or in a washer dryer, which is driven directly by an electric motor, which is controlled by an electronic control or regulating device, and an electrical machine in the form of a washing machine or a washer dryer Implementation of a method according to the invention
Im Stand der Technik sind Waschmaschinen mit einer Waschetrommel bekannt, welche um eine horizontale Drehachse von einem Elektromotor angetπeben wird und eine mantelseitig angeordnete, verschließbare Beschickungsoffnung aufweist Die Waschetrommel kann mit Wasche beladen werden, wenn sie in einer Drehstellung stillsteht, in welcher sich die Beschickungsoffnung oben befindet Eine elektronische Steuer- oder Regeleinrichtung zur Steuerung des Elektromotors, welcher die Trommel antreibt, ist derart ausgebildet, daß sie die Trommel jeweils in der Drehstellung zum Stillstand bringt in welcher sich ihre Beschikkungsoffnung oben befindet Ferner ist aus αer DE 44 31 846 A1 ein Verfahren zur Steuerung und/oder Regelung einer Waschmaschine oder eines Waschetrockners bekannt welches für eine Waschetrommel wenn diese mit einer Drehzahl rotiert, bei welcher sich die Wasche auf ihrem Innenumfang verteilt anlegt, die Unwucht von ungleichmäßig um den Trommelumfang verteilt angeordneter Wasche sowie das Gesamtgewicht der in der Waschetrommel enthaltenen Wasche (Beladung) errechnet und in Abhängigkeit von diesen beiden Werten die Drehzahl eines die Waschetrommel antreibenden Motors steuert oder regelt Das Verfahren wird bei beladener (mit Wasche gefüllter) Waschetrommel durchgeführt, wenn sich diese mindestens mit der „Anlegedrehzahl" dreht Die „Anlegedrehzahl" ist diejenige Drehzahl der Waschetrommel, bei welcher sich die Wasche um ihren Innenumfang herum verteilt Beim Anlaufvorgang derIn the prior art, washing machines are known with a washing drum which is driven by an electric motor about a horizontal axis of rotation and has a closable loading opening arranged on the jacket side. The washing drum can be loaded with washing when it is stationary in a rotating position in which the loading opening is at the top is an electronic control or regulating device for controlling the electric motor which drives the drum is designed such that it brings the drum to a standstill in the rotational position in which its charging opening is located above. Furthermore, a method is known from DE 44 31 846 A1 for the control and / or regulation of a washing machine or a washer-dryer known which for a washing drum when it rotates at a speed at which the wash is distributed over its inner circumference, the imbalance of washing distributed unevenly around the drum circumference and so on he calculates the total weight of the washing contained in the washing drum (load) and controls or regulates the speed of a motor driving the washing drum as a function of these two values. The procedure is carried out with a loaded (filled with washing) washing drum if it is at least with the " Application speed "rotates The" application speed "is the speed of the washing drum at which the wash is distributed around its inner circumference
Waschetrommel können hohe Unwuchtmomente auftreten, weil diese von dem bekannten Verfahren nicht berücksichtigt werden Ferner benotigt das bekannte Verfahren eine komplizierte teure Elektronikeinπchtung zur Erfassung von Winkelbeschleunigungen der Waschetrommel Aus der DE 195 46 185 A1 ist eine Waschmaschine bekannt, deren Waschetrommel von einem Elektromotor nicht über einen Antπebsπemen, sondern direkt angetrieben wird Hierzu ist ein Rotor eines Elektromotors drehfest mit einer Antriebswelle der Waschetrommel verbunden, und derWashing drum high imbalance moments can occur because these are not taken into account by the known method A complicated expensive electronic device for detecting angular accelerations of the washing drum is known from DE 195 46 185 A1, a washing machine is known, the washing drum of which is driven directly by an electric motor, not via an anti-friction device, but directly for this purpose , and the
Stator des Elektromotors ist an der Ruckwand des Waschetrommelgehauses (Laugenbehalters) undrehbar befestigt Dadurch wird ein exakter Synchronlauf des Motors mit der Waschetrommel erzieltThe stator of the electric motor is non-rotatably attached to the rear wall of the washing drum housing (suds container). This ensures that the motor synchronizes precisely with the washing drum
Durch die Erfindung soll die Aufgabe gelost werden, ein Verfahren und eine Vorrichtung für eine elektrische Maschine mit einer rotierbaren Waschetrommel zu schaffen, bei welchen auch dann, wenn die Maschine nicht mit Betπebsdrehzanl rotiert, auf einfache und preiswerte Weise sowie exakt die Beladung der Waschetrommel (das Gewicht der in der Waschetrommel enthaltenen Wasche) ermittelt und für beliebige Zwecke benutzt werden kann, insbesondere zur Anzeige des Beladungsgewichtes und/oder zur Steuerung oder Regelung der Drehzahl und/oder Beschleunigung der Waschetrommel und/oder der Behandlungsdauer des Waschepostens, der sich in der Waschetrommel befindetThe object of the invention is to provide a method and a device for an electrical machine with a rotatable washing drum, in which, even when the machine is not rotating with operating speed, in a simple and inexpensive manner and exactly the loading of the washing drum ( the weight of the washing contained in the washing drum) can be determined and used for any purpose, in particular for displaying the loading weight and / or for controlling or regulating the speed and / or acceleration of the washing drum and / or the duration of treatment of the washing item, which is in the Washing drum is located
Diese Aufgabe wird gemäß der Erfindung durch die kennzeichnenden Merkmale von Anspruch 1 , 2, 7 oder 8 gelost Durch Anwendung des erfindungsgemaßen Verfahrens wird bei einer Waschebehandlungsmaschine in einfacher und preiswerter Weise eine Beladungsmessung realisiert deren Ergebnisse exakt genug sind, um als Einflußparameter in einer Steuerung oder Regelung einer Waschebehandlungsmaschine verwendet werden zu können Eine erfmdungsgemaß ausgestattete Waschebehandlungsmaschine vermeidet das sonst bei bekannten Verfahren dieser Art erforderliche Trockenbewegen der in der Waschetrommel liegenden Wasche die dabei durch starke Reibung der aufemanderliegenden Fasern erheblicher Abnutzung ausgesetzt istThis object is achieved according to the invention by the characterizing features of claim 1, 2, 7 or 8. By using the method according to the invention, a load measurement is implemented in a washing treatment machine in a simple and inexpensive manner, the results of which are precise enough to be used as influencing parameters in a controller or Regulation of a washing treatment machine to be able to be used A washing treatment machine equipped according to the invention avoids the dry movement of the laundry lying in the washing drum, which is otherwise required in known methods of this type and which is exposed to considerable wear and tear due to strong friction of the fibers lying on top of one another
Weitere Merkmale der Erfindung sind in den Unteranspruchen enthaltenFurther features of the invention are contained in the subclaims
Die Er indung und weitere Vorteile werden im folgenden mit Bezug auf die Zeichnungen anhand von bevorzugten Ausfuhrungsformen der Erfindung als Beispiele beschrieben In den Zeichnungen zeigenThe He indung and other advantages are described below with reference to the drawings based on preferred embodiments of the invention as examples. In the drawings
Fig 1 schematisch einen Axialschnitt einer elektrischen Maschine in Form einer Waschmaschine oder eines Waschtrockners mit einer elektronischen Steuer- oder Regeleinrichtung nach der Erfindung, Fig. 2 schematisch einen Querschnitt einer Wäschetrommel der Maschine von Fig. 1 mit einem im tiefsten Bereich in ihr liegenden Wäscheposten zur Beschreibung einer ersten Ausführungsform des Verfahrens nach der Erfindung, und Fig. 3 schematisch einen Querschnitt der Wäschetrommel von Fig. 1 mit einem in ihrem tiefsten Bereich liegenden Wäscheposten zur Beschreibung einer zweiten Ausführungsform des Verfahrens nach der Erfindung.1 schematically shows an axial section of an electrical machine in the form of a washing machine or a washer dryer with an electronic control or regulating device according to the invention, 2 schematically shows a cross section of a laundry drum of the machine from FIG. 1 with a laundry item lying in the deepest area therein to describe a first embodiment of the method according to the invention, and FIG. 3 schematically shows a cross section of the laundry drum from FIG their deepest area laundry item to describe a second embodiment of the method according to the invention.
Die in Fig. 1 schematisch dargestellte elektrische Maschine in Form einer Waschmaschine oder eines Waschtrockners enthält eine Wäschetrommel 2, welche in einem Laugenbehälter 4 durch Lager 6 auf der Rückseite drehbar gelagert ist und auf derThe electrical machine shown schematically in FIG. 1 in the form of a washing machine or a washer-dryer contains a laundry drum 2, which is rotatably mounted in a tub 4 by bearings 6 on the back and on the
Vorderseite durch eine im Laugenbehälter 4 vorgesehene Tür 8 und eine in der vorderen Stirnseite 10 gebildete Beschickungsöffnung mit Wäsche 12 beladen werden kann.Front can be loaded with laundry 12 through a door 8 provided in the tub 4 and a loading opening formed in the front end 10.
Ein Rotor 14 eines Elektromotors 16 ist mit einer Antriebswelle 8 der Wäschetrommel 2 drehfest direkt verbunden, so daß zwischen dem Rotor 14 und der Antriebswelle 18 keine Drehpositions-Differenz auftreten kann. Ein Stator 20 des Elektromotors 16 ist auf derA rotor 14 of an electric motor 16 is directly connected to a drive shaft 8 of the laundry drum 2 in a rotationally fixed manner, so that no rotational position difference can occur between the rotor 14 and the drive shaft 18. A stator 20 of the electric motor 16 is on the
Rückseite einer Rückwand 22 des Laugenbehälters 4 undrehbar befestigt. Der Elektromotor 16 wird von einer elektronischen Steuer- oder Regeleinrichtung 24 über Leitungen 28 gespeist und gesteuert oder geregelt.Back of a rear wall 22 of the tub 4 non-rotatably attached. The electric motor 16 is fed and controlled or regulated by an electronic control or regulating device 24 via lines 28.
Gemäß bevorzugten Ausführungsformen der Erfindung ist der Elektromotor 16 ein elek- tronisch kommutierter Gleichstrommotor oder ein elektrisch geschalteter Reluktanzmotor oder ein Elektromotor, bei welchem die Steuer- oder Regeleinrichtung 24 die Drehwinkelposmonen des Rotors 14 und damit auch der Wäschetrommel 2 anhand von Kommutierungsschritten oder Steuerpulsen feststellen kann welche sie dem Elektromotor 16 für dessen Stromversorgung zuführen muß, oder welcher in Abhängigkeit von seinen Drehpositionen Schwankungen in der Stromaufnahme aufweist, ahnlich wie bei einem Reluktanzmotor, welche von der Steuer- oder Regeleinrichtung 24 erfaßt werden Können.According to preferred embodiments of the invention, the electric motor 16 is an electronically commutated direct current motor or an electrically switched reluctance motor or an electric motor, in which the control or regulating device 24 can determine the rotational angle posmons of the rotor 14 and thus also the laundry drum 2 on the basis of commutation steps or control pulses which it must supply to the electric motor 16 for its power supply, or which has fluctuations in the current consumption depending on its rotational positions, similar to a reluctance motor which can be detected by the control or regulating device 24.
Für Motoren der vorgenannten Art ist es nicht erforderlich zur Ermittlung der Drehpositionen und Drehwinkelstrecken, um welche die Waschetrommel 2 rotiert, zusatzliche Mittel zu verwenden, beispielsweise einen Tachogenerator 26For motors of the aforementioned type, it is not necessary to use additional means, for example a tachometer generator 26, to determine the rotational positions and angular distances by which the washing drum 2 rotates
Selbstverständlich konnte auch in einem solchen Fall ein Tachogenerator 26 verwendet werden. Bei anderen Typen von Elektromotoren 16 ist zur Erfassung der jeweiligen Drehwinkelposition und der jeweils von einer Ausgangs-Drehwinkelposition bis zu einer End-Drehwinkelposition zurückgelegten Drehwinkelstrecke der Wäschetrommel ein zusätzlicher Sensor erforderlich, vorzugsweise ein Tachogenerator 26, welcher der Steuer- oder Regeleinrichtung 24 entsprechende Signale liefert. Stromversorgungs- und elektrische Signalleitungen 28 verbinden die Steuer- oder Regeleinrichtung 24 mit dem Elektromotor 16. Stromversorgungs- und/oder elektrische Signalleitungen 29 verbinden die Steuer- oder Regeleinrichtung 24 mit der gegebenenfalls verwendeten Zusatzeinrichtung, z.B. dem Tachogenerator 26.Of course, a tachometer generator 26 could also be used in such a case. In other types of electric motors 16 is used to detect the respective rotational angle position and from an initial rotational angle position to one An additional sensor, preferably a tachometer generator 26, which supplies the control or regulating device 24 with the appropriate signals, is required for the final angular position of the rotary drum. Power supply and electrical signal lines 28 connect the control or regulating device 24 to the electric motor 16. Power supply and / or electrical signal lines 29 connect the control or regulating device 24 to the additional device that may be used, for example the tachometer generator 26.
Die Erfindung wird im folgenden ohne Tachogenerator 26 beschrieben, anhand von Beispielen, bei welchen die Steuer- oder Regeleinrichtung 24 eine Lageerfassungseinrichtung zur Erfassung von Drehwinkelpositionen undThe invention is described below without tachometer generator 26, using examples in which the control or regulating device 24 is a position detection device for detecting rotation angle positions and
Drehwinkelstrecken des Rotors 14 enthält, welcher mit der Wäschetrommel 2 antriebsmäßig direkt verbunden ist. Der Elektromotor 16 ist ein elektronisch kommutierter Gleichstrommotor oder ein elektronisch geschalteter Reluktanzmotor oder ein ähnlicher Motor. Die genannten Motorprinzipien ermöglichen eine relativ hoch auflösende, d.h. sehr genaue Lageerfassungseinrichtung in der Steuer- oder Regeleinrichtung 24 zur Bestimmung der Rotor-Winkellage und Rotor-Winkelgeschwindigkeit. Mit Hilfe einer solchen Lageerfassungseinrichtung läßt sich die Drehwinkelposition und die gedrehte Drehwinkelstrecke der Wäschetrommel 2 jederzeit relativ genau bestimmen. Im Gegensatz zu einem indirekten Antrieb (Keilriemen zwischen Elektromotor undIncludes angular distances of the rotor 14, which is directly connected to the laundry drum 2 in terms of drive. The electric motor 16 is an electronically commutated direct current motor or an electronically switched reluctance motor or a similar motor. The motor principles mentioned enable a relatively high resolution, i.e. very precise position detection device in the control or regulating device 24 for determining the rotor angular position and rotor angular velocity. With the help of such a position detection device, the angle of rotation position and the angle of rotation of the laundry drum 2 can be determined relatively precisely at any time. In contrast to an indirect drive (V-belt between the electric motor and
Antriebswelle der Wäschetrommel) sind keine zusätzlichen Mittel zur Synchronisation erforderlich. Durch die Erfindung wird die Ermittlung der Drehwinkel der Wäschetrommel 2 (Rotor 14 des Elektromotors 16) mit einer Messung der Stromaufnahme des Elektromotors 16 kombiniert. Anwendungsbeispiel 1:Drive shaft of the laundry drum) no additional means for synchronization are required. The invention combines the determination of the angle of rotation of the laundry drum 2 (rotor 14 of the electric motor 16) with a measurement of the current consumption of the electric motor 16. Application example 1:
Fig. 2 zeigt die Wäschetrommel 2 im Querschnitt in einer O°-Drehwinkelstellung, bei welcher die gesamte in sie geladene Wäsche 12 im untersten Bereich der Wäschetrommel 2 liegt. Der Massenschwerpunkt der Wäsche 12 liegt hierbei senkrecht unter der Trommeldrehachse 30. Wenn die Wäschetrommel 2 vom Elektromotor 16 von der 0°-Drehwinkelstellung um eine definierte, vorbestimmte Drehwinkelstrecke 32, welche in der Steuer- oder Regeleinrichtung 24 gespeichert ist, in eine x°-Drehwinkelstellung gedreht und damit die Wäsche 12 in eine gehobene Stellung bis kurz vor ihrem Fallpunkt angehoben wurde, wird von der Steuer- oder Regeleinrichtung 24 in der x°- Drehwinkelposition die Stromaufnahme des Elektromotors 16 gemessen. Der Motorstrom ist proportional dem Drehmoment in der x°-Drehwinkelstellung und somit ein Maß oder Wert für das Gewicht der Wäsche 12 (Beladung der Wäschetrommel 2).FIG. 2 shows the laundry drum 2 in cross section in an O ° angle of rotation position, in which the entire laundry 12 loaded therein lies in the lowest region of the laundry drum 2. The center of gravity of the laundry 12 lies vertically below the drum axis of rotation 30. When the drum 2 of the electric motor 16 moves from the 0 ° angle of rotation position by a defined, predetermined angle of rotation distance 32, which is stored in the control or regulating device 24, into an x ° Angle of rotation position and thus the laundry 12 has been raised into a raised position until shortly before its point of fall is controlled by the control or regulating device 24 in the x ° Angle of rotation position measured the current consumption of the electric motor 16. The motor current is proportional to the torque in the x ° rotation angle position and thus a measure or value for the weight of the laundry 12 (loading of the laundry drum 2).
In der Wäschetrommel 2 können in bekannter Weise Mitnehmer 34 zur Rotationsmitnahme der Wäsche 12 vorgesehen sein.In the laundry drum 2, drivers 34 can be provided in a known manner for rotationally carrying the laundry 12.
Anwendungsbeispiel 2:Example of use 2:
Entsprechend Fig. 3 ist in der elektronischen Steuer- oder Regeleinrichtung 24 ein definierter, vorbestimmter, maximaler Stromwert gespeichert. Die Steuer- oder Regeleinrichtung 24 mißt die Drehwinkelstrecke „x", um welche die Wäschetrommel 2 von dem Elektromotor 16 ausgehend von der 0°-Drehwinkelstellung gedreht werden muß, bis die Stromaufnahme des Motors den gespeicherten Stromwert erreicht hat. Somit ist die zurückgelegte Winkelstrekke „x" ein Maß für die Beladung bzw. das Gewicht der Wäsche 12 in der Wäschetrommel 2.According to FIG. 3, a defined, predetermined, maximum current value is stored in the electronic control or regulating device 24. The control or regulating device 24 measures the angle of rotation distance "x" by which the washing drum 2 must be rotated by the electric motor 16 starting from the 0 ° angle of rotation position until the current consumption of the motor has reached the stored current value. Thus, the angular distance traveled is " x "a measure of the load or the weight of the laundry 12 in the laundry drum 2.
Bei beiden Anwendungsbeispielen 1 und 2 befindet sich in der 0o-Drehwinkelstellung die gesamte Wäsche im unteren Bereich der Wäschetrommel 2. Sie wird dann durch Drehen der Wäschetrommel 2 in eine gehobene, seitlich versetzt zur Trommeldrehachse 30 liegende Position gebracht, welche beim Anwendungsbeispiel nach Fig. 2 durch die x°- Drehwinkelposition und beim Anwendungsbeispiel nach Fig. 3 durch die Drehwinkelstrecke „x" definiert ist. In both application examples 1 and 2, the entire laundry is in the lower region of the laundry drum 2 in the 0 o -rotation angle position. It is then brought by turning the laundry drum 2 into a raised position laterally offset from the drum axis of rotation 30, which in the application example according to FIG 2 is defined by the x ° angle of rotation position and, in the application example according to FIG. 3, by the angle of rotation distance “x”.

Claims

P a t e n t a n s p r ü c h eP a t e n t a n s r ü c h e
Verfahren zur Ermittlung des Beladungsgewichts einer Waschetrommel in einerMethod for determining the load weight of a washing drum in a
Waschmaschine oder in einem Waschetrockner, welche von einem Elektromotor direkt angetrieben wird welcher von einer elektronischen Steuer- oder Regeleinrichtung angesteuert wird dadurch gekennzeichnet, daß die Waschetrommel (2) von dem mit ihr direkt gekuppelten Elektromotor (16) von einer 0°-Drehwιnkel- Position (0°), bei welcher der gesamte Wascheposten (12) in ihr in einer unterenWashing machine or in a washer-dryer, which is driven directly by an electric motor which is controlled by an electronic control or regulating device, characterized in that the washing drum (2) is moved from a 0° rotation angle position by the electric motor (16) directly coupled to it (0°), in which the entire washing batch (12) is in a lower one
Lage liegt, um einen vorbestimmten, definierten Drehwinkel (32) in eine x°-Dreh- winkelposition gedreht wird, in welcher der Wascheposten (12) in einer angehobenen Lage liegt und bei welcher der Massenschwerpunkt des Waschepostens (12) sich in seitlichem Abstand neben einer theoretischen, sich in Langsπchtung der Waschetrommel-Drehachse erstreckenden vertikalen Ebene befindet und daß von der Steuer- oder Regeleinrichtung (24) das Erreichen der x°-Drehwιnkeiposιtιon ermittelt wird und in dieser x°-Drehwιnkelposιtιon der elektrische Antriebsstrom des Elektromotors gemessen und ein entsprechender Meßwert erzeugt wird, welcher seinerseits dem Gewicht des Waschepostens (12) entspπcht Verfahren zur Ermittlung des Beladungsgewichts einer Waschetrommel in einerPosition is rotated by a predetermined, defined angle of rotation (32) into an x° rotation angle position in which the washing item (12) lies in a raised position and in which the center of mass of the washing item (12) is at a lateral distance next to it a theoretical vertical plane extending in the long direction of the washing drum rotation axis and that the control or regulating device (24) determines whether the x° rotational angle position has been reached and in this x° rotational angle position the electric drive current of the electric motor is measured and a corresponding one Measured value is generated, which in turn corresponds to the weight of the washing load (12). Method for determining the load weight of a washing drum in a
Waschmaschine oder in einem Waschetrockner, welche von einem Elektromotor direkt angetrieben wird welcher von einer elektronischen Steuer- oder Regeleinrichtung angesteuert wird, dadurch gekennzeichnet, daß in der Steuer- oder Regeleinrichtung (24) ein vorbestimmter, definierter, maximaler Stromwert abgespeichert ist daß die Stromaufnahme des Elektromotors (16) gemessen wird und daß die Waschetrommel (2) von dem Elektromotor (16) aus einer 0°- Drehwiπkelposition, bei welcher der gesamte Wascheposten (12) in einer unteren Lage in der Waschetrommel liegt, soweit gedreht wird bis die Steuer- oder Regeleinrichtung wahrend des Drehens der Waschetrommel feststellt daß dieWashing machine or in a washer-dryer, which is driven directly by an electric motor which is controlled by an electronic control or regulating device, characterized in that a predetermined, defined, maximum current value is stored in the control or regulating device (24) so that the current consumption of the Electric motor (16) is measured and that the washing drum (2) is rotated by the electric motor (16) from a 0 ° rotation angle position, in which the entire washing batch (12) is in a lower position in the washing drum, until the control or control device determines that the washing drum is rotating
Stromaufnahme des Elektromotors (16) dem abgespeicherten maximalen Stromwert entspricht wobei durch Drehen der Waschetrommel der Wascheposten (12) ιr eine angehobene Lage gedreht wurde, bei welcher der Massen- schweraunkt des Waschepostens (12) in seitlichem Abstand neben einer sich in Langsπchtung der Trommeldrehachse erstreckenden vertikalen Ebene liegt, und daß die von der 0°-Drehwιnkelposιtιon bis zum Erreichen des maximalen Stromwertes zurückgelegte Drehwinkelstrecke (x) ermittelt und ein dieser Dreh- winkelstrecke (x) entsprechendes Signal erzeugt wird, welches ein Maß für das Gewicht des Waschepostens (12) istCurrent consumption of the electric motor (16) corresponds to the stored maximum current value, whereby by rotating the washing drum, the washing load (12) was rotated to a raised position, in which the mass center of gravity of the washing load (12) is at a lateral distance next to one which extends in the long direction of the drum rotation axis vertical plane lies, and that the rotation angle distance (x) covered from the 0° rotation angle position until the maximum current value is reached is determined and a signal corresponding to this rotation angle distance (x) is generated, which is a measure of the weight of the washing item (12).
Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet daß als Elektromotor (16) ein Motor verwendet wird, dessen Stromaufnahme oder dessen von der Steuer- oder Regeleinrichtung (24) erzeugte Ansteuersignale von den Drehwinkel- positionen seines Rotors (16) relativ zu seinem Stator (20) abhangig sind, und daß diese Stromaufnahme-Schwankungen oder diese Ansteuersignale von der Steueroder Regeleinrichtung (24) zur Definition (Anspruch 1) oder zur Berechnung (Anspruch 2) der Drehwinkelstrecke (32, x) verwendet werden um welche die Waschetrommel (2) von der 0°-Drehwιnkelposιtιon bis zu der Drehwinkelposition gedreht wird, bei welcher von der Steuer- oder Regeleinrichtung (24) das Gewicht des Waschepostens (12) ermittelt wirdMethod according to claim 1 or 2, characterized in that a motor is used as the electric motor (16), whose current consumption or whose control signals generated by the control or regulating device (24) depend on the rotational angular positions of its rotor (16) relative to its stator ( 20) are dependent, and that these current consumption fluctuations or these control signals are used by the control or regulating device (24) to define (claim 1) or to calculate (claim 2) the rotation angle distance (32, x) by which the washing drum (2) is rotated from the 0° rotation angle position to the rotation angle position at which the weight of the washing item (12) is determined by the control or regulating device (24).
Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß als Elektromotor (16) ein elektronisch kommutierter Gleichstrommotor verwendet wird und daß die Anzahl der Kommutierungsschritte, beginnend bei der 0o-Drehwιnkelposιtιon der Waschetrommel (2) bis zu der Drehwinkelposition, an der das Belastungsgewicht ermittelt wird, zur Definition der x-Drehwinkelposition (Anspruch 1 ) oder Berechnung der Drehwinkelstrecke (x) (Anspruch 2) benutzt wirdMethod according to claim 3, characterized in that an electronically commutated direct current motor is used as the electric motor (16) and that the number of commutation steps, starting at the 0 o rotation angle position of the washing drum (2) up to the rotation angle position at which the load weight is determined , is used to define the x rotation angle position (claim 1) or to calculate the rotation angle distance (x) (claim 2).
Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet daß als Elektromo- tor (16) ein elektronisch gesteuerter Reluktanzmotor verwendet wirdMethod according to claim 1 or 2, characterized in that an electronically controlled reluctance motor is used as the electric motor (16).
Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet daß zur Erkennung der jeweiligen Drehwinkelposition der Waschetrommel (2) ein Tachogenerator (26) benutzt wird, welcher in Abhängigkeit von Drehwinkelbewegungen der Wasche- trommel elektrische Impulse erzeugt, deren Anzahl ein Maß für die jeweils zurückgelegte Drehwinkelstrecke ist Elektrische Maschine in Form einer Waschmaschine oder eines Waschetrockners, enthaltend eine Waschetrommel (2), welche an einem stationären Maschinenteil (4) um eine Drehachse drehbar gelagert ist, einen Elektromotor (16) zum direkten Antrieb der Waschetrommel (2) und eine elektronische Steuer- oderMethod according to claim 1 or 2, characterized in that a tachogenerator (26) is used to detect the respective rotation angle position of the washing drum (2), which generates electrical pulses depending on the rotation angle movements of the washing drum, the number of which is a measure of the rotation angle distance covered is Electric machine in the form of a washing machine or a washer-dryer, containing a washing drum (2), which is rotatably mounted on a stationary machine part (4) about an axis of rotation, an electric motor (16) for directly driving the washing drum (2) and an electronic control or
Regeleinπchtung (24) für den Elektromotor (16), zur Durchfuhrung eines Verfahrens nach einem der Ansprüche 1 und 3 bis 6, dadurch gekennzeichnet, daß die Steuer- oder Regeleinrichtung dazu eingeπchtet ist, daß die Waschetrommel (2) von dem mit ihr direkt gekuppelten Elektromotor (16) von einer 0°-Drehwιnkelposιtιon (0°), bei welcher der gesamte Wascheposten (12) in ihr in einer unteren Lage liegt, um einen vorbestimmten, definierten Drehwinkel (32) in eine x°-Drehwιnkelposιtιon gedreht wird, in welcher der Wascheposten (12) in einer angehobenen Lage liegt und bei welcher der Massenschwerpunkt des Waschepostens (12) sich in seitlichem Abstand neben einer theoretischen, sich in Längsrichtung der Waschetrommel-Drehachse erstreckenden vertikalen Ebene befindet, und daß von der Steuer- oder Regeleinrichtung (24) das Erreichen der x°-Drehwιnkelposιtιon ermittelt wird und in dieser x°-Drehwιnkelposιtιon der elektrische Antriebsstrom des Elektromotors gemessen und ein entsprechender Meßwert erzeugt wird, welcher seinerseits ein Maß für das Gewicht des Wasche- Postens (12) istControl device (24) for the electric motor (16), for carrying out a method according to one of claims 1 and 3 to 6, characterized in that the control or regulating device is designed to ensure that the washing drum (2) is directly coupled to it Electric motor (16) is rotated from a 0° rotation angle position (0°), in which the entire washing item (12) lies in a lower position, by a predetermined, defined rotation angle (32) into an x° rotation angle position, in which of the washing batch (12) is in a raised position and in which the center of mass of the washing batch (12) is at a lateral distance next to a theoretical vertical plane extending in the longitudinal direction of the washing drum axis of rotation, and that from the control or regulating device ( 24) reaching the x° rotation angle position is determined and in this x° rotation angle position the electrical drive current of the electric motor is measured and a corresponding measured value is generated, which in turn is a measure of the weight of the laundry item (12).
Elektrische Maschine nach Anspruch 7, dadurch gekennzeichnet, daß in derElectrical machine according to claim 7, characterized in that in the
Steuer- oder Regeleinrichtung (24) ein vorbestimmter, definierter, maximaler Stromwert gespeichert ist, daß mittels der Steuer- oder Regeleinrichtung (24) die Stromaufnahme des Elektromotors (16) meßbar ist, und daß die WaschetrommelA predetermined, defined, maximum current value is stored in the control or regulating device (24), so that the current consumption of the electric motor (16) can be measured by means of the control or regulating device (24), and that the washing drum
(2) durch den Elektromotor (16) von einer in der Steuer- oder Regeleinrichtung (24) gespeicherten 0°-Drehwιnkelposιtιon, bei welcher der gesamte Wascheposten (12) in ihr in einer unteren Lage liegt, soweit gedreht wird, bis die Steuer- oder Regeleinrichtung wahrend des Drehens der Waschetrommel feststellt daß die Stromaufnahme des Elektromotors (16) dem gespeicherten maximalen Stromwert entspricht, wobei durch Drehen der Waschetrommel der Wascheposten (12) in eine angehobene Lage gedreht wurde, bei welcher der Massenschwerpunkt des Waschepostens (12) in seitlichem Abstand neben einer sich in Längsrichtung der Trommeldrehachse erstreckenden vertikalen Ebene liegt, und daß durch die Steuer- oder Regeleinrichtung (24) die von der 0°- Drehwinkelposition bis zum Erreichen des maximalen Stromwertes zurückgelegte Drehwinkelstrecke (x) ermittelbar und ein dieser Drehwinkelstrecke (x) entsprechender Meßwert generierbar ist, welcher ein Maß für das Gewicht des Wäschepostens (12) ist. (2) by the electric motor (16) from a 0° rotation angle position stored in the control or regulating device (24), in which the entire washing item (12) lies in a lower position, is rotated until the control or control device determines while the washing drum is rotating that the current consumption of the electric motor (16) corresponds to the stored maximum current value, with the washing item (12) being rotated into a raised position by rotating the washing drum, in which the center of mass of the washing item (12) is in a lateral position Distance next to one The vertical plane extending in the longitudinal direction of the drum rotation axis lies, and that the rotation angle distance (x) covered from the 0° rotation angle position until the maximum current value is reached can be determined by the control or regulating device (24) and a measurement value corresponding to this rotation angle distance (x) can be generated is, which is a measure of the weight of the laundry item (12).
EP99938243A 1998-07-17 1999-07-14 Method for determining the load weight of a washing drum and washer/drier for carrying out the method Expired - Lifetime EP1108083B1 (en)

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DE19832292A DE19832292A1 (en) 1998-07-17 1998-07-17 Registering loading weight of laundry drum of washing machine or dryer
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Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19963703A1 (en) * 1999-12-29 2001-07-05 Bsh Bosch Siemens Hausgeraete Drive device for a washing machine
ITFI20010124A1 (en) * 2001-07-06 2003-01-06 Biancalani S P A MACHINE FOR DRYING AND TREATING CONTINUOUS FABRICS WITH ROTATING BASKET AND VARIABLE INCLINATION
KR100425723B1 (en) * 2001-07-10 2004-04-03 엘지전자 주식회사 Method of detecting the weight of laundry in washing machine of sensorless bldc motor
KR100473319B1 (en) * 2002-07-09 2005-03-10 삼성전자주식회사 Washing machine and control method thereof
DE602004002619T2 (en) * 2003-06-12 2007-08-16 Hitachi Maxell, Ltd., Ibaraki Oil-based pigmented ink composition
KR100548274B1 (en) 2003-07-23 2006-02-02 엘지전자 주식회사 Method of detecting weight of laundry in washing machine
KR100651977B1 (en) * 2003-10-16 2006-11-30 엘지전자 주식회사 Method for Controlling Washing Process in Drum Type Washer
DE102005048890A1 (en) * 2005-10-12 2007-04-19 BSH Bosch und Siemens Hausgeräte GmbH Household laundry drier and method for detecting a rotary motion of a drum
FR2894996B1 (en) * 2005-12-21 2011-08-12 Brandt Ind WASHING AND / OR DRYING MACHINE AND METHOD FOR WARNING OF THE PARAMETERS OF AN ASSOCIATED WASHING AND / OR DRYING CYCLE
KR101396978B1 (en) * 2007-08-01 2014-05-19 엘지전자 주식회사 Method for controlling of drum-type washing device
KR100933330B1 (en) * 2007-09-04 2009-12-22 엘지전자 주식회사 Motor control method of drum washing machine.
KR100941536B1 (en) * 2007-09-05 2010-02-10 엘지전자 주식회사 Drum type washing machine having touch up function and method for touch up having the same
ITTO20070847A1 (en) * 2007-11-23 2009-05-24 Eltek Spa DISPENSER OF WASHING AGENTS FOR A DOMESTIC WASHING MACHINE, IN PARTICULAR A DISHWASHER
KR100988625B1 (en) * 2008-05-26 2010-10-18 엘지전자 주식회사 Washing machine and method for controlling washing machine
US8763184B2 (en) 2008-08-01 2014-07-01 Lg Electronics Inc. Control method of a laundry machine
US8713736B2 (en) 2008-08-01 2014-05-06 Lg Electronics Inc. Control method of a laundry machine
US8966944B2 (en) 2008-08-01 2015-03-03 Lg Electronics Inc. Control method of a laundry machine
US8746015B2 (en) 2008-08-01 2014-06-10 Lg Electronics Inc. Laundry machine
US9416478B2 (en) 2009-03-31 2016-08-16 Lg Electronics Inc. Washing machine and washing method
ES2605027T3 (en) 2009-02-11 2017-03-10 Lg Electronics Inc Washing machine
DE102009001112A1 (en) * 2009-02-24 2010-08-26 BSH Bosch und Siemens Hausgeräte GmbH Method for monitoring a loading of a laundry drum and / or a degree of drying of laundry items and corresponding circuit arrangement
US10533275B2 (en) 2009-07-27 2020-01-14 Lg Electronics Inc. Control method of a laundry machine
US9695537B2 (en) 2009-07-27 2017-07-04 Lg Electronics Inc. Control method of a laundry machine
US9234307B2 (en) 2009-07-27 2016-01-12 Lg Electronics Inc. Control method of a laundry machine
US9822473B2 (en) 2009-07-27 2017-11-21 Lg Electronics Inc. Control method of a laundry machine
US8186227B2 (en) 2009-08-10 2012-05-29 Whirlpool Corporation Method and apparatus for determining load amount in a laundry treating appliance
KR101674936B1 (en) * 2009-08-11 2016-11-10 엘지전자 주식회사 Controlling Method of Washing Machine
US10370787B2 (en) 2009-08-31 2019-08-06 Lg Electronics Inc. Control method of washing machine
US8776297B2 (en) 2009-10-13 2014-07-15 Lg Electronics Inc. Laundry treating apparatus and method
US9045853B2 (en) 2009-10-13 2015-06-02 Lg Electronics Inc. Laundry treating apparatus
US8381569B2 (en) * 2009-11-17 2013-02-26 Whirlpool Corporation Method and apparatus for determining load amount in a laundry treating appliance
US8915972B2 (en) 2011-05-17 2014-12-23 Whirlpool Corporation Method and apparatus for determining load fall in a laundry treating appliance
DE102012221919A1 (en) 2012-11-29 2014-06-05 BSH Bosch und Siemens Hausgeräte GmbH Household appliance e.g. front loading horizontal axis washing machine has evaluation device to derive measure of degree of loading of treatment chamber from light received by light sensor
PL2891738T3 (en) 2013-12-17 2018-11-30 Miele & Cie. Kg Domestic appliance and method for operating same
US11053621B2 (en) 2018-10-02 2021-07-06 Haier Us Appliance Solutions, Inc. Washing machine appliances and methods of operation for determining load size
US10982372B2 (en) 2018-10-02 2021-04-20 Haier Us Appliance Solutions, Inc. Washing machine appliances and methods for setting plaster speed
IT201900001815A1 (en) * 2019-02-08 2020-08-08 Candy Spa Washing machine
MX2021013856A (en) 2019-05-13 2022-04-06 Univ Danmarks Tekniske Methods for production of strictosidine aglycone and monoterpenoid indole alkaloids.
DE102019216697A1 (en) * 2019-10-30 2021-05-06 BSH Hausgeräte GmbH Laundry care device with one control
US11578453B2 (en) 2020-03-26 2023-02-14 Haier Us Appliance Solutions, Inc. Fault detection for a water level detection system of a washing machine appliance
US11639571B2 (en) 2020-03-27 2023-05-02 Haier Us Appliance Solutions, Inc. System and method for determining dry load weight within a washing machine appliance
CN111676651B (en) * 2020-05-18 2024-04-19 合肥海尔滚筒洗衣机有限公司 Clothes cleaning treatment method and device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553881B1 (en) * 1983-10-25 1987-11-20 Esswein Sa METHOD FOR DETERMINING A LAUNDRY LOAD IN A ROTATING DRUM, AND WASHING AND / OR DRYING MACHINE USING THE SAME
FR2650844B1 (en) * 1989-07-28 1991-10-11 Ciapem WASHING MACHINE OR DRYER IN WHICH THE LOAD OF LAUNDRY IS DETERMINED AUTOMATICALLY
JPH04276293A (en) * 1991-03-01 1992-10-01 Toshiba Corp Drum type washing machine
US5161393A (en) * 1991-06-28 1992-11-10 General Electric Company Electronic washer control including automatic load size determination, fabric blend determination and adjustable washer means
DE4336350A1 (en) * 1993-10-25 1995-04-27 Bosch Siemens Hausgeraete Method for determining the amount of laundry in a laundry treatment machine
DE4431846C2 (en) 1994-09-07 2001-02-15 Diehl Ako Stiftung Gmbh & Co Method for load-dependent control and / or regulation of a washing machine or a tumble dryer
US6029299A (en) * 1997-07-14 2000-02-29 Lg Electronics Inc. Method for detecting cloth amount in drum washing machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0004220A1 *

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ATE255185T1 (en) 2003-12-15
DE19832292A1 (en) 2000-01-20
US20010011395A1 (en) 2001-08-09
WO2000004220A1 (en) 2000-01-27
DE59907877D1 (en) 2004-01-08
EP1108083B1 (en) 2003-11-26
US6374444B2 (en) 2002-04-23
ES2212596T3 (en) 2004-07-16
TR200003809T2 (en) 2001-07-23

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