EP0370875B1 - Wäschetrockner mit einer Steuerungsanordnung - Google Patents

Wäschetrockner mit einer Steuerungsanordnung Download PDF

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Publication number
EP0370875B1
EP0370875B1 EP89403168A EP89403168A EP0370875B1 EP 0370875 B1 EP0370875 B1 EP 0370875B1 EP 89403168 A EP89403168 A EP 89403168A EP 89403168 A EP89403168 A EP 89403168A EP 0370875 B1 EP0370875 B1 EP 0370875B1
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EP
European Patent Office
Prior art keywords
temperature
laundry
outlet
air temperature
drying
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.)
Expired - Lifetime
Application number
EP89403168A
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English (en)
French (fr)
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EP0370875A1 (de
Inventor
Michel Kubacsi
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.)
Compagnie Industrielle dAppareils Menagers SA CIAPEM
Original Assignee
Compagnie Industrielle dAppareils Menagers SA CIAPEM
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Publication date
Application filed by Compagnie Industrielle dAppareils Menagers SA CIAPEM filed Critical Compagnie Industrielle dAppareils Menagers SA CIAPEM
Priority to AT89403168T priority Critical patent/ATE98707T1/de
Publication of EP0370875A1 publication Critical patent/EP0370875A1/de
Application granted granted Critical
Publication of EP0370875B1 publication Critical patent/EP0370875B1/de
Anticipated expiration legal-status Critical
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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
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • 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
    • 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
    • D06F2103/08—Humidity
    • 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
    • D06F2103/28—Air properties
    • D06F2103/32—Temperature
    • 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
    • D06F2105/28—Electric heating
    • 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
    • D06F2105/62—Stopping or disabling machine operation

Definitions

  • the present invention relates to a dryer provided with an automatic operating control system.
  • Known dryers are either mechanical type programmer devices where their user must determine a drying time for a given volume of laundry introduced into their drum, or automatic devices which determine the drying times themselves.
  • Known automatic dryers often include in their drying cycle a first phase or a measurement is automatically made of the time elapsing from the moment they start up until the temperature of their outlet air reaches a predetermined value or a predetermined rate of change per unit of time, this measured time which is a drying time being more or less long depending on the quantity of laundry to be dried, and a second phase where an additional drying time is calculated according to the drying time measured in the first phase and executed automatically.
  • GB-A-1,516,501 has also proposed a dryer in which the cycle is stopped in the terminal phase by detecting the temperature variation during the cycle and by comparing to a threshold.
  • this threshold is set or changed manually.
  • the object of the present invention is to make an economic dryer provided with an automatic operating control system effectively giving excellent drying results for selected degrees of humidity of the laundry.
  • the invention is applicable to tumble dryers having either a drying air circuit open to the outside, or a closed drying air circuit provided with a humidity condenser.
  • a dryer 1 produced according to the invention, schematically illustrated in FIG. 1, mainly comprises a rotary laundry drum 2, a ventilation and heating duct 3 in which a forced current of air 4 represented by arrows in lines discontinuous is created, heated and introduced into this drum 2, an air outlet duct 5 collecting the hot and humid air 9 leaving the drum 2, and a filter 6 disposed at the inlet of this air outlet duct 5 to retain linen stuffing.
  • the inlet air stream 4 is created and conveyed by a fan 7 and heated by electric heating resistors 8 in the ventilation and heating duct 3.
  • the outlet air temperature T 9 measured in the air duct 5 changes as a function of time t and substantially along a curve C having a general shape illustrated in FIG. 2.
  • This curve C comprises three sections corresponding to three phases I, II, III of drying the laundry.
  • an Initial phase I the damp linen present in the drum 2 and the various parts of the dryer which are in contact with the hot drying air are heated, the temperatures T of outlet air 9 measured in the sheath 5 thus rise from an initial temperature Ti, along a relatively steep slope.
  • a next phase or main phase II where the heat supplied by the electrical resistors 2 is, for the most part, absorbed by the linen present in the drum 2, the temperatures T of outlet air 9 measured in the sheath 5 stabilize and have a rising slope with a slight slope.
  • a terminal phase III where the laundry reaches a dry and very dry state, the temperatures T of the outlet air 9 measured in the sheath 5 again increase rapidly.
  • the dryer 1 is provided with a system 10 for automatic operation control.
  • the automatic operating control system 10 comprises at least one means triggering the end of a drying cycle when the rate of change of outlet air temperatures 9 per unit of time ⁇ T / t calculated from a measured temperature T or entry of outlet air at least greater than a minimum temperature Tm of outlet air 9 predetermined experimentally corresponding, is for a predetermined time tv validation greater than one minimum rate corresponding to experimentally predetermined ° / t of variation in outlet air temperatures 9 at the end of the drying cycle (phase III) per unit of time.
  • the degrees of humidity of laundry at the end of drying are for example of the order of 13% to more or less 3% of humidity for a laundry ready to iron, 3% to more or less 3% of humidity for a dry laundry, and 0% to 2% for very dry laundry.
  • the automatic operation control system 10 comprises means for recording the minimum temperatures Tm of outlet air 9 experimentally predetermined as a function of the specific characteristics of the dryer 1, such as those of a drying air circuit open to the outside or closed and provided with a humidity condenser, thresholds S of outlet air temperature 9 in the interval between main phase II and terminal phase III of the cycle drying, experimentally predetermined and corresponding to the prefixed quantities by weight of linen to be dried, with a view to obtaining, at the end of drying, the humidity levels of selected linen.
  • the curve C of the outlet air temperatures 9 illustrated in FIG. 2 shows that an end of drying is practically located in terminal phase III of the drying cycle.
  • an outlet air temperature T 9 which triggers an end of drying must be one of the measured outlet air temperatures T 9 entered in this terminal phase III .
  • a triple condition is imposed, namely a temperature T of outlet air 9 at least greater than a minimum temperature Tm predetermined experimentally, and a rate of change of temperature of outlet air 9 per unit of time ⁇ T / t must be at least greater than a minimum rate a ° / t of variation of outlet air temperature 9 per unit of time, predetermined experimentally, and be confirmed during a predetermined time tv validation.
  • the minimum temperature Tm is one of the outlet air temperatures 9 in the terminal phase III of the drying cycle. This minimum temperature Tm is greater than a value T (to) of the outlet air temperature 9 measured or entered at a time to after the start of the dryer 1 which is in the interval between the initial phase I and the main phase II of curve C. This minimum temperature Tm is equal to a value T (to) of outlet air temperature 9, increased by a temperature rise ⁇ T determined experimentally as a function of the specific characteristics of the dryer 1 and of a threshold S of outlet air temperature 9, corresponding to a quantity by weight of prefixed linen to to dry, and to a selected humidity level of laundry at the end of drying.
  • Tm is directly dependent on T (to) allows the automatic operating control system to be very insensitive to the effects induced on the absolute temperature of the outlet air, by the possible variations in ambient temperature, of the heating power or the quantity of laundry.
  • the system 10 for automatically controlling the operation of the dryer 1 comprises means for recording the thresholds S of the outlet air temperature 9 determined experimentally as a function of the selected degrees of humidity of the laundry at the end of drying, the quantities in prefixed weights of laundry to be dried, heating powers supplied by electric resistors 8.
  • the thresholds S of outlet air temperatures 9 are additionally determined experimentally as a function of variations in the electric voltage supplying these electrical resistors 8, which improves the operating control accuracy of the dryer 1 .
  • the automatic operating control system 10 comprises means for recording the minimum rate of temperature variation a ° / t of outlet air per unit of time.
  • the minimum rates a ° / t of variations in outlet air temperatures 9 per unit of time are temperature rates determined experimentally as a function of the specific characteristics of the dryer 1 and of the heating powers used supplied by the electrical resistors 8
  • the predetermined validation time tv avoids a premature triggering of the end of drying of the laundry.
  • incidental incidents such as a linen blocked in front of the filter 6, a sudden variation in the uncontrolled electrical voltage supplying the heating resistors 8, can induce a rate of variation in outlet air temperatures 9 per unit of time ⁇ T / t greater than a predetermined minimum rate a ° / t, and an outlet air temperature T greater than a predetermined minimum temperature Tm, which triggers the end of drying of the laundry.
  • the automatic operating control system 10 comprises a means for triggering the end of the drying cycle which is activated, for a small quantity by weight of laundry to be dried or quantity less than an experimentally preset quantity of laundry, and for a chosen degree of moisture in the laundry at the end of drying, of the order of 13% to plus or minus 3% or degree of humidity of laundry ready to iron, when the temperature T of outlet air 9 measured or captured is, during a predetermined validation time tv, greater than a minimum temperature Tm corresponding to experimentally predetermined outlet air.
  • the automatic operating control system 10 comprises means for automatically determining the quantity by weight of laundry in the dryer, performing temperature measurements at the start of the dryer. initials Ti of outlet air, and at a time to in the interval between the initial phase I and the main phase II of the drying cycle after this start-up, measurements of the temperature T (to) of outlet air, then a calculation of the temperature variation outlet air 9 per unit of time and finally an identification of the quantity by weight of laundry in the dryer by comparison of this variation in temperature of outlet air per unit of time, with lower and upper limit values for variations in outlet air temperatures 9 per unit of time, experimentally predetermined corresponding to the quantities by weight prefixed with linen.
  • the dryer is provided with an automatic operating control system 10, constituted by an electronic circuit comprising a known device for measuring electrical voltage, a known device for controlling selected heating powers supplied. by electrical resistors 8, a known sensor of outlet air temperatures 9, and a microcontroller or microprocessor which, on the one hand records in its memories tables of lower and upper limit values of variation of outlet air temperature per time unit both experimentally predetermined and classified according to different heating power conditions and various quantities by weight of prefixed linen, tables of thresholds S of the outlet air temperature both experimentally predetermined and classified according to different degrees of humidity at the end chosen drying rates and different quantities by weight of laundry, minimum temperature tables Tm of outlet air classified according to different thresholds S and tables of minimum rates of change of outlet air temperature per unit of time a ° / t classified according to different heating powers, and on the other hand operates successively initial temperature measurements Ti of outlet air, of electric voltage supplying the electrical resistors 8 supplying heating powers (this voltage measurement can be optional), temperature T (to) of outlet air 9 at time to after starting
  • the prefixed quantities by weight of linen are for example one kilogram, two kilograms and a quantity greater than three kilograms.
  • an end of drying trigger is directly executed as soon as the temperature T of the outlet air 9 is higher at the minimum temperature Tm relative to the threshold S identified by the microcontroller and corresponding to this small predetermined quantity of laundry.
  • the preset tables of predetermined values experimentally recorded in the memories of the microcontroller are tables and sub-tables.
  • these tables include tables of the lower and upper limit values of variation of outlet air temperatures. per unit of time, both experimentally predetermined and classified first according to predetermined sections of initial temperature values Ti, then according to predetermined sections of electrical voltage V supply values for the electric heating resistors 8 (this classification can be optional), finally according to the prefixed quantities by weight of linen, the initial temperature bands Ti being for example temperature bands ranging from 0 to 40 degrees centigrade and varying by 5 ° centigrade, and voltage bands V being for example electrical voltage ranges from 187 to 242 Volts and varying by 11 Volts, that is to say of the order of 5% of this voltage V, - tables of thresholds S of outlet air temperature at the times predetermined experimentally and classified first according to the degrees of humidity of the laundry at the end of drying and then according to the quantities by weight of the prefixed laundry , - tables of minimum temperatures Tm of outlet air 9, classified according to the thresholds S of outlet air temperature, - and tables of minimum rates a ° / t of variation of outlet
  • the dryer 1 thus produced gives excellent desired drying results. Triggering of end-drying under a triple condition imposed by an outlet air temperature T greater than a minimum temperature Tm experimentally predetermined and by a rate of change in outlet air temperature ⁇ T / t greater, for a while experimentally, avoids both insufficient drying and excessive drying.
  • Special thresholds S of the outlet air temperature determined experimentally and assigned respectively to the different pre-determined quantities by weight of laundry to be dried, in drying control, significantly improve the control accuracy of the dryer 1 and the regularity of the results. drying results.
  • the dryer 1 has the advantage of eliminating from its construction, a device for measuring the resistivity of the linen or resistivity probe which, usually used in dryers known for controlling the degree of humidity of the linen to be dried, is sensitive to the nature of the laundry (surface resistivity detected) and requires in addition to an electronic processing circuit, electrical insulation means and rotating contacts, the aging of which makes random control and drying results uncertain .
  • the dryer 1 also has the advantage of avoiding a time control of operation which, usually used in known dryers, is sensitive to variations in the parameters of use such as electric voltage supply to the heating resistors and temperature. ambient.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Drying Of Solid Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (8)

  1. Verfahren zur automatischen Betriebssteuerung eines Wäschetrockners (1), der eine drehbare Wäschetrommel (2), ein Trocknungssystem durch Umlauf von warmer Luft durch die Trommel (2) und ein Steuersystem (10) enthält, das mindestens eine Vorrichtung zur Steuerung der Heizleistung, eine Sonde zur Messung der Temperatur der Ausgangsluft der Trommel (2), Speichermittel zur Speicherung von experimentell bestimmten Parameter zur Berechnung einer Mindesttemperatur der Ausgangsluft und der experimentell bestimmten Temperaturveränderungsrate sowie Rechenmittel aufweist, wobei der Trocknungszyklus eine Startphase, in der die Temperatur der Ausgangsluft rasch ansteigt, eine Hauptphase, in der die Temperatur der Ausgangsluft sich stabilisiert und nur langsam steigt, und eine Endphase enthält, in der die Temperatur der Ausgangsluft erneut rasch steigt, wobei das Verfahren folgende Schritte aufweist:
    - Messung der Ursprungstemperatur Ti der Ausgangsluft,
    - Messung der Temperatur T(to) der Luft am Ende der Startphase,
    - Abschätzung der Wäschemenge in der Trommel (2) unter Verwendung der Ursprungstemperatur Ti und der Temperaturveränderung in der Startphase,
    - Auswahl eines der gespeicherten Parameter abhängig insbesondere von der bestimmten Wäschemenge und der gewünschten Endfeuchte, um ausgehend von der Temperatur T(to) eine Mindesttemperatur Tm zu erhalten,
    - Auswahl einer Mindestrate (a°/t) der Temperaturveränderung aus den gespeicherten Werten der Variationsrate abhängig insbesondere von der Heizleistung,
    - Beenden des Trocknungszyklus, wenn die Veränderungsrate der Temperatur der Ausgangsluft je Zeiteinheit (ΔT/t), die ausgehend von einer gemessenen Temperatur (T) der Ausgangsluft oberhalb der Mindesttemperatur Tm während einer vorgegebenen Bewertungszeit (tv) größer als eine Mindestrate (a°/t) ist, oder nach dem Erreichen der Mindesttemperatur Tm, am Ende einer vorbestimmten Zeit (tv1).
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Bestimmung der Wäschemenge in der Trommel (2) erfolgt, indem die Temperaturveränderung [T(to) - Ti]/to der Ausgangsluft je Zeiteinheit berechnet wird und indem diese Temperaturveränderung mit unteren und oberen Grenzwerten der Temperaturveränderung der Ausgangsluft je Zeiteinheit verglichen werden, die experimentell bestimmt sind und festen Wäschemengen entsprechen.
  3. Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die experimentell für die Berechnung einer Mindestlufttemperatur Tm bestimmten Parameter von den spezifischen Kennwerten des Wäschetrockners (1) und von Temperaturschwellwerten (S) der Ausgangsluft im Intervall zwischen der Hauptphase und der Endphase des Trocknungszyklus abhängen, die experimentell abhängig von den vorgegebenen Werten des Gewichts der zu trocknenden Wäsche vorbestimmt sind, um am Ende des Trocknungsvorgangs die gewünschte Endfeuchte der Wäsche zu erhalten.
  4. Verfahren nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die Mindesttemperatur Tm gleich der Temperatur T(to) plus eine Temperaturdifferenz ist, welche durch den aus dem experimentell bestimmten Parametern ausgewählten Parameter gegeben ist.
  5. Verfahren nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, daß der Temperaturschwellwert (S) der Ausgangsluft experimentell abhängig von gewünschten Endfeuchtegrad, von den vorgegebenen Werten des zu trocknenden Wäschegewichts und von der verwendeten Heizleistung bestimmt wird.
  6. Verfahren nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, daß der Temperaturschwellwert (S) der Ausgangsluft experimentell abhängig vom gewünschten Endfeuchtegrad der Wäsche, von dem vorbestimmten Gewicht der zu trocknenden Wäsche, der verwendeten Heizleistung und den Veränderungen der die die Heizleistung aufbringenden elektrischen Widerstände speisenden elektrischen Spannung bestimmt wird.
  7. Verfahren nach einem beliebigen der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Mindestrate (a°/t) der Temperaturveränderung der Ausgangsluft je Zeiteinheit experimentell abhängig von den spezifischen Kennwerten des Wäschetrockners (1) und der verwendeten Heizleistung bestimmt wird.
  8. Verfahren nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß für weine Wäschemenge unterhalb einer experimentell vorgegebenen Menge und für einen Endfeuchtegrad, der sich zum Bügeln der Wäsche eignet, das Ende des Trocknungsvorgangs ausgelöst wird, wenn die gemessene Temperatur (T) der Ausgangsluft während einer vorbestimmten Bewertungszeit (tv) größer als ein entsprechender Mindestwert (Tm) der Ausgangsluft ist.
EP89403168A 1988-11-24 1989-11-17 Wäschetrockner mit einer Steuerungsanordnung Expired - Lifetime EP0370875B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89403168T ATE98707T1 (de) 1988-11-24 1989-11-17 Waeschetrockner mit einer steuerungsanordnung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8815329 1988-11-24
FR8815329A FR2639369B1 (fr) 1988-11-24 1988-11-24 Seche-linge muni d'un systeme de commande automatique de fonctionnement

Publications (2)

Publication Number Publication Date
EP0370875A1 EP0370875A1 (de) 1990-05-30
EP0370875B1 true EP0370875B1 (de) 1993-12-15

Family

ID=9372196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89403168A Expired - Lifetime EP0370875B1 (de) 1988-11-24 1989-11-17 Wäschetrockner mit einer Steuerungsanordnung

Country Status (5)

Country Link
EP (1) EP0370875B1 (de)
AT (1) ATE98707T1 (de)
DE (1) DE68911489T2 (de)
ES (1) ES2047142T3 (de)
FR (1) FR2639369B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013205311A1 (de) 2013-03-26 2014-10-02 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Messen von Wärmestrahlungen in einer rotierenden Wäschetrommel, sowie Maschine zum Durchführen eines solchen Verfahrens
US9499934B2 (en) 2013-04-24 2016-11-22 Whirlpool Corporation Laundry treating appliances and methods of controlling the same to determine an end of-cycle condition

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4442250C2 (de) * 1994-11-28 2000-01-05 Bsh Bosch Siemens Hausgeraete Verfahren zum Bestimmen der voraussichtlichen Trockenzeit in einem Wäschetrockner
DE10134971A1 (de) * 2001-07-24 2003-02-06 Kannegiesser H Gmbh Co Verfahren zum Trocknen von Wäsche
US20050132599A1 (en) * 2003-12-18 2005-06-23 Lg Electronics Inc. Drying method of washing machine and apparatus thereof
DE102006037239A1 (de) * 2006-08-09 2008-02-14 BSH Bosch und Siemens Hausgeräte GmbH Verfahren und Wäschetrockner bzw. Waschtrockner zum Steuern des Trocknens von feuchter Wäsche
US8555522B2 (en) 2010-10-21 2013-10-15 Whirlpool Corporation Laundry treating appliance with inlet temperature compensation
DE102017204367A1 (de) 2017-03-16 2018-09-20 BSH Hausgeräte GmbH Wäschepflegegerät und Verfahren zum Betreiben eines solchen
CN112442825B (zh) * 2019-08-16 2023-11-17 青岛海尔洗衣机有限公司 一种衣物处理设备及其控制方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1521532A (en) * 1975-01-28 1978-08-16 Ti Domestic Appliances Ltd Thermally responsive systems
GB1516501A (en) * 1975-05-30 1978-07-05 Ti Domestic Appliances Ltd Tumbler dryers
SE7810894L (sv) * 1978-10-19 1980-04-20 Junga Verksteder Ab Torktumlare
US4286391A (en) * 1980-02-11 1981-09-01 General Electric Company Control system for an automatic clothes dryer
DE3102843A1 (de) * 1981-01-29 1982-08-19 Miele & Cie GmbH & Co, 4830 Gütersloh Verfahren zur steuerung des trocknungsgrades in einem waeschetrockner
EP0060698B1 (de) * 1981-03-12 1986-06-25 T.I. Domestic Appliances Limited Trommeltrockner
US4397101A (en) * 1981-09-10 1983-08-09 General Electric Company Automatic dryer control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013205311A1 (de) 2013-03-26 2014-10-02 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Messen von Wärmestrahlungen in einer rotierenden Wäschetrommel, sowie Maschine zum Durchführen eines solchen Verfahrens
US9499934B2 (en) 2013-04-24 2016-11-22 Whirlpool Corporation Laundry treating appliances and methods of controlling the same to determine an end of-cycle condition

Also Published As

Publication number Publication date
FR2639369A1 (fr) 1990-05-25
ES2047142T3 (es) 1994-02-16
EP0370875A1 (de) 1990-05-30
ATE98707T1 (de) 1994-01-15
DE68911489T2 (de) 1994-04-07
FR2639369B1 (fr) 1990-12-28
DE68911489D1 (de) 1994-01-27

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