EP0252817B1 - Steuerungsvorrichtung für Waschmaschine oder Wäschetrockner mit automatischer Ermittlung der Wäschemenge - Google Patents

Steuerungsvorrichtung für Waschmaschine oder Wäschetrockner mit automatischer Ermittlung der Wäschemenge Download PDF

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Publication number
EP0252817B1
EP0252817B1 EP87401542A EP87401542A EP0252817B1 EP 0252817 B1 EP0252817 B1 EP 0252817B1 EP 87401542 A EP87401542 A EP 87401542A EP 87401542 A EP87401542 A EP 87401542A EP 0252817 B1 EP0252817 B1 EP 0252817B1
Authority
EP
European Patent Office
Prior art keywords
washing
washing machine
machine
automatic detection
laundry
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
EP87401542A
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English (en)
French (fr)
Other versions
EP0252817A1 (de
Inventor
Patrice Heyde
Christian Burgel
Bernard Delhomme
Martine Gonon
Jean Bargel
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
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Publication of EP0252817A1 publication Critical patent/EP0252817A1/de
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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
    • D06F34/14—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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/36—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
    • 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
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/14—Time settings
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/10—Power supply arrangements, e.g. stand-by circuits

Definitions

  • the invention relates to a washing machine or dryer comprising means for detecting the load of laundry introduced into the drum.
  • the pieces of laundry are introduced into a perforated drum, placed inside a tank in which the washing or rinsing water is located, and rotating around an axis usually horizontal.
  • the mixing of the laundry is obtained by providing protrusions of the cylindrical inner surface of the drum.
  • the washing execution parameters in particular the quantity of water and the duration of each operation, are generally provided for the maximum load of laundry that the drum can receive. Thus when only a fraction of the maximum load is introduced into the machine, the quantity of water and the duration of the washing are considered to be too great. We therefore tried to adapt the washing program to the weight of laundry.
  • the load of laundry is determined automatically, without the user having to intervene, and the washing parameters are automatically adapted to the load.
  • a washing machine is described, for example, in French patent n ° 8316997 in the name of the company Esswein (EP-A-0143685).
  • the invention overcomes these drawbacks.
  • It is characterized in that it comprises a means for automatically detecting the load of laundry acting on the operating parameters of the washing machine (or washing parameters) to adapt them to the load, and a member that can be actuated by the user. to deactivate this means and vary the washing parameters at will in order to either improve the washing efficiency, or to save water, energy or time.
  • the user actuable member can act on the washing program in the same way as the automatically determined load signal; in this case the member is analogous to that of a machine in which the load is displayed at will by the user. But this organ is then used for a different purpose. For example, if a high washing efficiency is desired, the display member is adjusted so that it corresponds to a large quantity of laundry, even if the laundry load is low. Conversely, if it is desired to save time and / or make savings, even if the load of laundry is large, the display member will be positioned in such a way that it corresponds to small quantities of laundry.
  • the washing machine includes means for automatically detecting the type of laundry introduced into the machine, for example that described in French patent 8402437 (EP-A-0159202), and the adaptation of the washing program is performed automatically according to the value of this quantity.
  • the adjustment member makes it possible either to increase the efficiency of the washing or to save money or save time.
  • the invention also applies to a dryer comprising means for automatically detecting a quantity linked to the laundry, such as the load, acting on the drying parameters, which is characterized in that it comprises a member adjustable by the user to deactivate the size detection means and which makes it possible to modify the parameters (of washing or) of drying.
  • the size linked to the laundry may in this case the load of laundry, the nature of the laundry and the degree of humidity.
  • the drying parameters controlled by the user-actuable member may be the operating time of the dryer and the energy supplied to this dryer.
  • the washing machine programmer which will be described in relation to the figures comprises, on the one hand, an electro-mechanical component and on the other hand an electronic component with microprocessor 12.
  • the electromechanical component is formed by an electric motor 10 driving one or more cams (not shown) acting on the state - open or closed - of switches 13 i , 13 2 and 13g.
  • the motor 10 is in series with a triac 11, the trigger of which is connected to an output 12, of the microprocessor 12. This triac is in parallel with a switch 25 of the electromechanical component.
  • the states of the switches 13 1 , 13 2 and 13 3 represent, at each instant, the state of progress of the washing program. In other words, according to their state, the switches make it possible to know whether the washing machine is in the prewash, washing, rinsing or spinning period.
  • the signals representing these switch states are applied to a common input 14 of the microprocessor 12 which controls, via interface circuits (not shown), the supply of the drive motor of the washing machine drum and its direction. the duration of each phase of the program to be executed.
  • the microprocessor 12 controls, thanks to the triac 11 and to the switch 25, the rotation of the micromotor 10 to pass from one phase of the program to another.
  • Some of the electromechanical programmer switches control - in a conventional way - directly other parts of the washing machine such as the water heating resistor, the drain pump and the solenoid valves.
  • the microprocessor In addition to the output 12, connected to the trigger of the triac 11, the microprocessor has an output 12 2 for controlling the drum drive motor and an input 12 6 connected, by the switch of an interface circuit 28, to the terminal. 27 common to triac 11, switch 25 and motor 10.
  • the triac 11 is used to trigger the passage from one stage of the washing program to another and this triac 11 is cut when it has been observed that the step change operation has started.
  • the microprocessor 12 monitors, through the input 12 6 , the conduction state of the switch 25 and, as soon as it has detected that this switch is closed, the triac 11 is open.
  • the microprocessor 12 controls the conduction of the triac 11 the motor 10 begins to rotate.
  • this triac 11 is opened periodically, for example for one alternation in ten of the alternating signal from the supply network and, during this time, the microprocessor uses the data entered its input 12 6 to determine whether the switch 25 is open or closed. If this switch 25 is open, terminal 27 is in the air and circuit 28 transmits a binary signal, which is for example "0", on input 12 6 . Under these conditions, after this alternation, the triac 11 is again closed and the reading is still carried out periodically in the manner described. When the switch 25 is closed the circuit transmits a signal "1" on the input 12 6 . In this case, after detection of this signal, the triac 11 is open.
  • a terminal of each switch 13 is connected to a terminal 16 of the alternating current supply or mains supply.
  • the other terminal of each switch is connected to a common terminal 16 'via a resistor, respectively 17 1 , 17 2 and 17 3 .
  • Terminal 16 ' is connected to the base of an NPN transistor 20 via a resistor 19. Furthermore, terminal 16' is connected to ground through a resistor 21.
  • the emitter of transistor 20 is grounded while its collector is connected to input 14 of microprocessor 12 and to a terminal 22, brought to a reference potential, via a resistor 23.
  • the conduction time of the transistor 20 depends on the amplitude of the alternating signal applied to its base 20. This property appears clearly in FIGS. 2a and 2b on which we have plotted the abscissa. time t and on the ordinate the potential on the base of transistor 20 (for FIG. 2a) and the potential of collector 20 (for FIG. 2 b ).
  • the transistor 20 is conductive when the potential of its base exceeds the threshold V BE . It can thus be seen that, for a first alternating signal 30 of greater amplitude than a second alternating signal 31, the duration t 1 of conduction is greater than the duration t 2 for the second signal.
  • the microprocessor 12 is programmed to convert the times t 1 and t 2 into binary numbers.
  • the values of the resistors 17 i , 17 2 , and 173 are sufficiently distinct so that all the possible combinations of states (open or closed) of the switches 13 1 , 13 2 , and 13 3 correspond to signals of different values on the entry 14.
  • the microprocessor 12 has an input 12 3 connected: to an armature of a capacitor 40, to the first resistance terminals 41 and 42, and to the first end terminal 43, of a potentiometer 43.
  • the second armature of the capacitor 40 is connected to a terminal 44 1 to which a potential C cc of predetermined value is applied.
  • the resistor 41 constitutes a reference resistor of value R. known with precision, for example of the order of ⁇ 1%, and its second terminal is connected to an output 12 7 of the microprocessor 12.
  • the resistor 42 constitutes a thermistor for measuring the temperature of the water in the tank of the washing machine. Its second terminal is connected to an output 12 8 of the microprocessor.
  • the socket 43 3 of the potentiometer 43 is connected to an output 12 9 of the microprocessor 12.
  • the second end terminal 43 2 of this potentiometer 43 is connected to an output 12 10 of the microprocessor by means of a switch 44 of the type limit switch.
  • the potentiometer 43 and the switch 44 are actuated by a cursor 45 (FIG. 3) which can be moved continuously between two end positions 46 and 47. In the position 46 of the cursor 45 the switch 44 is open, while in the other positions this switch 44 is closed.
  • the procedure is as follows: the capacitor 40 is d 'first discharged, for example by connecting terminals 44, and 12 3 of the same potential, that C cc which is permanently applied to terminal 44 1 . Then terminal 12 3 again constitutes a Entrance. Then the output 12 7 of the microprocessor is connected to ground (potential 0). On the other hand, the outputs 12 8 , 12 9 , 12 io are in the air. Under these conditions the capacitor 40 charges through the resistor 41. The signal on the input 12 3 is the potential V of the first armature of the capacitor 40 (FIG. 2 c ).
  • this potential has the value V cc then it decreases as represented by the curve 50 on the diagram of FIG. 2 c .
  • the microprocessor 12 is programmed to measure the time t, at the end of which this signal V on the input 12 3 reaches the value V o . This time t, is transformed into a binary number by the microprocessor 12.
  • the value V o constitutes the input threshold of the microprocessor.
  • the capacitor 40 is again discharged and the output 12 8 is connected to ground while the outputs 12 7 , 12 9 and 12 10 are in the air.
  • the capacitor 40 then charges through the resistor 42.
  • On the input 12 3 we obtain the curve 51 and the time t 2 is measured at the end of which the potential V on the input 12 3 reaches the value V o .
  • the microprocessor determines the R value of the resistor 42 according to the following formula:
  • the procedure is analogous: the capacitor 40 is discharged then the time t ' i for which the potential V on the input 12 3 reaches the potential V o when the capacitor 40 charges through the total resistance of the potentiometer 43, the switch 44 then being of course closed; then the time t ' 2 is determined so that the potential on the input 12 3 reaches the value V o when the capacitor 40 is charged by the resistance presented between the terminals 43, and 43 3 .
  • the position of the cursor 45 is represented by the number a:
  • the position of the cursor 45 is chosen by the user before the machine is started up. If, when start-up is commanded, the cursor 45 is in position 46, the microprocessor controls the operation of the washing machine according to a sequence described in French patent 8316997 (EP-A-0143685) to determine the load of laundry. , and the various subsequent stages of operation of the washing machine are adjusted to the value of the load thus measured.
  • the microprocessor is programmed in such a way that, when the cursor 45 is moved (rectilinearly in the example), in the direction of the arrow 32 (FIG. 3), towards position 47 the efficiency of the washing increases. In particular the time of each operation, the energy used during each of these operations, the amount of water and, possibly (if the washing machine has an automatic dosing device), detergent increases as and when 'we're getting closer to position 47.
  • the washing programs implemented in the first case (switch 44 open) and in the second case (switch 44 closed) are identical, that is to say that each position of the cursor 45 (outside of the end 46) corresponds to a load of laundry, from the lowest loads to the highest loads (in position 47).
  • the programs are not necessarily identical in the two cases.
  • the washing time is greater than the corresponding time for the maximum load when the cursor is in position 46.
  • the washing time is shorter than for the smallest load provided for in the program when the switch 44 is open. It is also possible, when the switch 44 is closed, to act on the energy supplied to the washing machine (drum rotation time, water heating power), on the quantity of water and on the quantity of detergent, so as to obtain more possibilities than in the case of automatic detection of the load and automatic adaptation of the washing parameters to the load signal.
  • Arrow 32 ( Figure 3) can be replaced by a scale with numbers or other indications representing the effectiveness of washing.
  • the arrow 33 may be materialized, parallel to the path of movement of the cursor 45, by a graduation with figures or other indications representing the saving or the saving of time.

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

Claims (12)

1. Waschmaschine mit Mitteln zur automatischen Erfassung einer mit der Wäsche in Beziehung stehenden Größe wie etwa der Beschikkung, die eine Auswirkung auf die Parameter des Waschvorgangs hat, dadurch gekennzeichnet, daß sie ein Einstellelement (45) umfaßt, das von dem Benutzer betätigbar ist, um die Funktion der Mittel zur automatischen Erfassung der Größe abzuschalten, und das die Parameter des Waschvorgangs beliebig abzuwandeln erlaubt.
2. Waschmaschine gemäß Anspruch 1, dadurch gekennzeichnet, daß die Parameter des Waschvorgangs, die durch das vom Benutzer betätigbare Element (45) gesteuert werden, durch wenigstens einen der folgenden Parameter gegeben sind:
die Betriebsdauer der Waschmaschine, die Wassermenge, die an die Waschmaschine gelieferte Energie und die Menge des Waschmittels.
3. Waschmaschine gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß dem Einstellelement zwei Skalen zugeordnet sind, von denen sich eine (32) auf die Wirksamkeit des Waschvorgangs und die andere (33) auf die Wirtschaftlichkeit oder den Zeitgewinn bezieht.
4. Waschmaschine gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Einstellelement einen Läufer (45) umfaßt, der beispielsweise geradlinig verschiebbar ist.
5. Waschmaschine gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß sich die Betätigung des Elementes (45) auf den Abgriff (433) eines Potentiometers (43) auswirkt.
6. Waschmaschine gemäß Anspruch 5, dadurch gekennzeichnet, daß das Potentiometer (43) mit einem Unterbrecher (44) in Reihe geschaltet ist, der geöffnet ist, wenn die Mittel zur automatischen Erfassung der Wäschebeschickung oder eines anderen mit der Wäsche in Beziehung stehenden Parameters in Betrieb sind.
7. Waschmaschine gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß jeder Position des Einstellelementes, für die der Betrieb der Mittel zur automatischen Erfassung einer mit der Wäsche in Beziehung stehenden Größe abgeschaltet ist, einem Waschprogramm entspricht, das mit demjenigen identisch ist, welches für einen gegebenen Wert der automatisch bestimmten Größe vorgesehen ist.
8. Waschmaschine gemäß einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Waschprogramm wenigstens für bestimmte Positionen des Einstellelementes (45) von den Programmen verschieden ist, die für den Betrieb bei automatischer Erfassung der mit der Wäsche in Beziehung stehenden Größe vorgesehen sind.
9. Waschmaschine gemäß Anspruch 1, dadurch gekennzeichnet, daß die mit der Wäsche in Beziehung stehende Größe, die automatisch ermittelt wird, durch wenigstens eine der folgenden Größen gegeben ist:
die Wäschebeschickung, die Art der Wäsche, der Verschmutzungsgrad und der Feuchtigkeitsgrad.
10. Wäschetrockner mit Mitteln zur automatischen Erfassung einer mit der Wäsche in Beziehung stehenden Größe wie etwa der Beschikkung, die eine Auswirkung auf die Parameter des Trocknungsvorgangs hat, dadurch gekennzeichnet, daß er ein Einstellelement umfaßt, das von dem Benutzer betätigbar ist, um die Funktion der Mittel zur automatischen Erfassung der Größe abzuschalten, und das die Parameter des Trocknungsvorgangs beliebig abzuwandeln erlaubt.
11. Wäschetrockner gemäß Anspruch 10, dadurch gekennzeichnet, daß die mit der Wäsche in Beziehung stehende Größe, die automatisch erfaßt wird, durch wenigstens eine der folgenden Größen gegeben ist:
die Wäschebeschickung, die Art der Wäsche und der Feuchtigkeitsgrad.
12. Wäschetrockner gemäß Anspruch 10 oder 11, dadurch gekennzeichnet, daß die Parameter des Trocknungsvorgangs, die durch das vom Benutzer betätigbare Element gesteuert werden, wenigstens durch einen der folgenden Parameter gegeben sind:
die Betriebsdauer des Wäschertrockners und die an diesen Wäschetrockner gelieferte Energie.
EP87401542A 1986-07-10 1987-07-02 Steuerungsvorrichtung für Waschmaschine oder Wäschetrockner mit automatischer Ermittlung der Wäschemenge Expired - Lifetime EP0252817B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8610070 1986-07-10
FR8610070A FR2601389B1 (fr) 1986-07-10 1986-07-10 Dispositif de commande pour lave-linge ou seche-linge a detection automatique de la charge de linge.

Publications (2)

Publication Number Publication Date
EP0252817A1 EP0252817A1 (de) 1988-01-13
EP0252817B1 true EP0252817B1 (de) 1990-09-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401542A Expired - Lifetime EP0252817B1 (de) 1986-07-10 1987-07-02 Steuerungsvorrichtung für Waschmaschine oder Wäschetrockner mit automatischer Ermittlung der Wäschemenge

Country Status (5)

Country Link
EP (1) EP0252817B1 (de)
DE (1) DE3765034D1 (de)
ES (1) ES2017736B3 (de)
FR (1) FR2601389B1 (de)
GR (1) GR3001161T3 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3070165B2 (ja) * 1991-08-09 2000-07-24 松下電器産業株式会社 洗濯機の布量検知装置
FR2683835B1 (fr) * 1991-11-15 1994-02-18 Ciapem Lave-linge ou seche-linge a programmateur comprenant deux bases de temps de types differents.
DE4313814B4 (de) * 1993-04-27 2004-09-30 BSH Bosch und Siemens Hausgeräte GmbH Automatisch gesteuerte Haushaltmaschine zum Waschen und Spülen von Wäsche
CN114318760B (zh) * 2020-09-29 2023-12-05 无锡小天鹅电器有限公司 一种控制方法、载水家用电器及存储介质

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1435031A1 (de) * 1960-08-15 1968-10-31 Siemens Elektrogeraete Gmbh Waschmaschine
ES440417A1 (es) * 1974-09-06 1977-05-16 Bosch Siemens Hausgeraete Perfeccionamientos introducidos en una maquina lavadora de ropa que trabaja segun el principio del tambor.
CH599387A5 (en) * 1975-10-24 1978-05-31 Schulthess Ad Maschinenfabrik Washing or dyeing machine control circuit
FR2409339A1 (fr) * 1977-11-16 1979-06-15 Amiens Const Elect Mec Machine a laver a manoeuvre se referant a la nature des objets a laver
FR2553881B1 (fr) * 1983-10-25 1987-11-20 Esswein Sa Procede de determination d'une charge de linge dans un tambour tournant, et machine a laver et/ou a secher mettant en oeuvre ce procede
FR2559796B1 (fr) * 1984-02-17 1986-11-21 Esswein Sa Lave-linge a determination automatique du type de linge introduit dans cette machine

Also Published As

Publication number Publication date
DE3765034D1 (de) 1990-10-25
FR2601389A1 (fr) 1988-01-15
ES2017736B3 (es) 1991-03-01
EP0252817A1 (de) 1988-01-13
FR2601389B1 (fr) 1988-10-07
GR3001161T3 (en) 1992-06-30

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