EP4148177A1 - Procédé de détection d'un blocage de tambour dans un appareil d'entretien du linge, ainsi qu'appareil d'entretien du linge - Google Patents

Procédé de détection d'un blocage de tambour dans un appareil d'entretien du linge, ainsi qu'appareil d'entretien du linge Download PDF

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Publication number
EP4148177A1
EP4148177A1 EP22158138.2A EP22158138A EP4148177A1 EP 4148177 A1 EP4148177 A1 EP 4148177A1 EP 22158138 A EP22158138 A EP 22158138A EP 4148177 A1 EP4148177 A1 EP 4148177A1
Authority
EP
European Patent Office
Prior art keywords
drum
motor
values
determined
parameter set
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.)
Pending
Application number
EP22158138.2A
Other languages
German (de)
English (en)
Inventor
Ulrich Gessat
Rolf Stappenbeck
Eugen Balzer
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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
Priority claimed from BE20215720A external-priority patent/BE1029754B1/de
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP4148177A1 publication Critical patent/EP4148177A1/fr
Pending legal-status Critical Current

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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
    • 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 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • 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
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 

Definitions

  • the invention relates to a method for detecting a blocked drum in a laundry care appliance and to a laundry care appliance.
  • the subject matter of the invention is defined in the appended claims.
  • Laundry care devices are used wherever laundry has to be either washed or dried. The places of use extend to both private household use and industrial use.
  • Laundry care appliances are known in the prior art, for example as household and commercial dryers, household and commercial washing machines and automatic machines and washer-dryers.
  • a laundry care appliance typically includes at least one drum, which is rotatably mounted with respect to a housing surrounding the drum, a motor with a motor pinion, a drive belt that mechanically couples the motor to the drum via the motor pinion, and a controller that controls the motor .
  • the motor pinion together with the drive belt, transfers torque from the motor to the drum, causing the drum to rotate in the absence of slip.
  • the interior of the drum typically has ribs which, during normal operation, collide with the laundry as the drum rotates and thus advantageously distribute, process and/or care for the laundry.
  • the controller controls at least the direction of rotation and the speed of the motor.
  • the motor is usually operated with three-phase or alternating current.
  • the controller can control the motor in such a way that the drum rotates, for example, in only one direction or in alternating directions, i.e. reversing.
  • Belt drives generally have the problem that slip can occur because the torque that can be transmitted is limited.
  • the slippage is caused by a randomly occurring unfavorable laundry distribution. This can occur, for example, if the laundry gets wedged between rotating and stationary parts. For example, wedging of laundry can occur between the rotating drum and the surrounding housing, e.g., a so-called "balcony", which is a section in the housing in the area of the loading opening of a dryer. A rib striking the wedged laundry as the drum rotates becomes lodged in the laundry, which in turn often causes the drum and drive belt to stall, resulting in slippage between the drive belt and the motor sprocket or motor. Such a drum jam can sometimes occur within less than a second.
  • the object of the present invention is therefore to detect a drum jam in order to eliminate the disadvantages of the prior art and to reduce the frequency of belt breaks.
  • laundry care appliances can be household and commercial dryers, household and commercial washing machines and automatic machines and washer-dryers.
  • the rotatable drum can preferably be rotatable in relation to a housing surrounding it at least in part.
  • the drive belt may be a flat belt, toothed belt or V-belt or any other drive belt suitable for transmitting torque from the motor pinion coupled to the motor to the drum and causing the drum to rotate.
  • the motor can be a synchronous or asynchronous motor with, for example, two or more phases.
  • the steps of the method preferably run in the order a), b), c), d).
  • the torque-generating current is a highly suitable variable with which a blocked drum can be detected.
  • the torque-forming current can be determined from the supply current of the motor using a suitable method known from the field of vector control.
  • An example of such a method is a Clark and Park transformation performed in succession.
  • An alternative variable that is just as suitable for determining a blocked drum is the torque of the motor itself.
  • the torque of the motor can be determined, for example, with a torque observer, which calculates the torque.
  • the torque can be calculated from the torque-generating current using known methods.
  • Another alternative suitable quantity for determining a blocked drum is the envelope of the phase current.
  • the motor-internal slip as the difference between the stator speed and the rotor speed of the motor can be used as a measure of the torque in addition to the method described.
  • each of the quantities determined in step a) of the method according to the invention shows different characteristics for a rotating motor in the cases of a stationary drum and a rotating drum.
  • the variables determined in step a) show, for example, fluctuations over time or non-vanishing amplitudes at characteristic frequencies in the frequency space.
  • the drum is stationary and there is slippage between the slowly rotating or completely stationary drive belt and the still rotating motor sprocket (and therefore the motor).
  • a signal characteristic of drum jamming can be any single parameter or any set of several parameters that can be used to distinguish the two cases described above.
  • the parameter set can include at least one or more parameters. These parameters can be calculated either in full or in part from the values determined in step a).
  • the calculation and checking of the parameter set in steps b) and c) can take place, for example, with the aid of a control device.
  • the control device can have, for example, a CPU, a microcontroller or microprocessor, an ASIC, PLD or FPGA, which is suitable and set up to carry out a corresponding calculation.
  • the control of the motor can preferably be adapted by the control device.
  • the controller is set up, for example, after detecting a characteristic signal of a drum jam, to switch off the motor, reduce its speed and/or reverse its direction of movement, or any combination thereof.
  • the aim of the adjustment is to prevent the drive belt from chafing and to eliminate the jamming of laundry by means of a counter-movement.
  • step d The process according to the invention is preferably carried out continuously or at short time intervals.
  • continuous implementation means that after the end of step d), the process according to the invention is carried out immediately, beginning again with step a). This enables close monitoring of the laundry care device and a quick response to a drum blockage, and it is also possible to effectively prevent the drive belt from wearing through.
  • the method according to the invention has the advantage that slippage between the motor pinion or the motor and the drive belt can be quickly detected in the event of a drum blockage. This allows you to react directly by adjusting the motor movement, which prevents the drive belt from tearing.
  • the process can also be easily retrofitted to existing laundry care devices via a software update.
  • the method is only carried out when the motor of the laundry care appliance has reached a target speed after being switched on.
  • the setpoint speed describes the speed of the drum which it has in normal operation, ie in operation without drum blocking.
  • the target speed of the drum can, for. B. be 55 revolutions per minute.
  • step a) Starting the method according to the invention only after the target speed has been reached ensures that the values in step a) are determined exclusively at the start of normal operation and that a speed of the motor that changes over time when the laundry care appliance is started up does not falsify the measurement.
  • the values in step a) are determined during a defined measurement period and in step c) the parameter set is compared with a set of limit values and a signal characteristic of a drum blockage is determined if at least one parameter of the parameter set has a corresponding one Limit value of the set of limits falls below, the set of limits being calculated at least once from the set of parameters.
  • the defined measurement duration can be a time duration within which the determination of the values in step a) of the method according to the invention is carried out.
  • the measurement duration can be between 0.5 and 5 s, preferably between 1 and 3 s.
  • the measurement duration should preferably be selected in such a way that the measurement duration is as long as possible in order to be able to detect a characteristic signal.
  • the measurement duration should preferably be chosen so short that the further steps of the method are carried out and the drive belt is not already worn through when carrying out step a).
  • the limit theorem may include at least one or more limit values.
  • the limit values can be calculated completely or partially from the parameter set, for example.
  • the set of limit values can preferably be calculated from the set of parameters the first time the method according to the invention is carried out after the setpoint speed has been reached and cannot change when the method according to the invention is carried out again.
  • the limit set can also be determined and updated after a fixed number of repetitions of the method from the parameter set and/or from the previously determined limit sets.
  • one or more of the limit values can be calculated as a fraction or multiple of a parameter of the parameter set. If at least one parameter of the parameter set falls below a corresponding limit value of the set of limit values, a characteristic signal of drum blockage is present.
  • the difference between the maximum and the minimum and/or the standard deviation of the values determined in step a) are calculated in step b) and form a parameter set.
  • the minimum and the maximum are determined in relation to all time-resolved values determined in step a) in the measurement period. The difference between maximum and minimum is then determined from these two values. As an alternative to this, the standard deviation, as is well known in the prior art, can also be calculated.
  • the difference between the minimum and the maximum and the standard deviation have the advantage that they represent two values that can be calculated with little technical effort and minimal computing power, which allow a simple distinction between the cases of normal operation and the drum blockage.
  • step e) the values determined in step a) are low-pass filtered.
  • the low-pass filtering can be carried out, for example, by electrical or electronic components known in the prior art.
  • the signals can also be filtered on the SW side.
  • the limit frequency can preferably be selected in such a way that interfering high-frequency components, e.g. from motor or mains frequencies, which are not related to the mechanical movement of the drum, the drive belt and/or the motor, are eliminated or greatly reduced.
  • the cut-off frequency is preferably in the range from 5 rad/s to 30 rad/s, preferably 7 rad/s to 20 rad/s, more preferably 9 rad/s to 15 rad/s.
  • the cut-off frequency can be 10 rad/s.
  • the low-pass filtering has the advantage that the values determined in step a) are significantly improved in relation to the signal-to-noise ratio. This in turn improves the accuracy of drum jam detection.
  • step b) the values determined in step a) are broken down into at least one frequency or into a continuous or discrete frequency spectrum and form a parameter set.
  • amplitudes associated with the rotation can be determined in characteristic frequency ranges in the values determined in step a). These amplitudes can be caused, for example, by the laundry colliding with the ribs. By "flying over" the washing of a rib during the drum rotation, i.e. a rib not colliding, further amplitudes of higher or lower frequencies can be added. If the drum is blocked and the drum is at a standstill, the corresponding amplitudes of the characteristic frequencies or frequency ranges decrease or disappear. In this case, the set of limit values can be calculated, for example, from the set of parameters multiplied by a factor that is less than one.
  • the frequency breakdown has the advantage that it represents a parameter value or a parameter set that can be calculated with little technical effort and that allows a simple and error-resistant differentiation between the cases of normal operation and a drum blockage.
  • the parameter set is calculated in step b) using a discrete Fourier transformation, a fast Fourier transformation or a Goertzel algorithm.
  • the parameter set includes the sum of the amplitudes of multiple frequencies in a defined frequency interval.
  • the frequency interval includes frequencies from 0.5 Hz to 2.5 Hz.
  • the drum or one or more ribs of the drum of the laundry care appliance has an artificial imbalance.
  • An artificial imbalance can be, for example, an incompletely homogeneous weight distribution in the drum.
  • an artificial imbalance can also be one or more ribs that are heavier than the remaining ribs.
  • An artificial imbalance can be clearly identified by one or more corresponding amplitudes of one or more characteristic frequencies in the frequency spectrum of the values determined in step a). If the drum is blocked and the drum is at a standstill, the corresponding amplitudes decrease or disappear.
  • An artificial imbalance ensures and simplifies the detection of a drum jam in the event that the drum is only loaded with a small load of laundry.
  • the imbalance can improve the detection of a drum jam even in the case of a normal load of laundry.
  • step a) in a further step f), the values determined in step a) are stored in a data memory, and in step b) the mean value and/or the maximum value are calculated from all or part of the stored values and are included in the parameter set, and in step c) the parameter set is compared with the last value determined in step a) and a signal characteristic of a blocked drum is detected if the last determined value exceeds a parameter of the parameter set.
  • a drum stall can occur in less than a second. It was found that in the case of drum blockage, the values determined in step a), in particular the torque-forming current or the torque, rise steeply within a few hundred milliseconds. This sudden change in the values over time, i.e. their gradient, can be used to detect a blocked drum.
  • a drum lock characteristic signal or the set of parameters based on the gradient can be calculated using the mean value or the maximum value of a part or all values stored in memory determined in the past. Preferably, only a number k of the most recently stored values is used to calculate the mean or the maximum value, where k is a positive integer.
  • This embodiment provides an easy to implement and reliable way of detecting a jammed drum.
  • step f) the values determined in step a) are continuously stored in a ring memory.
  • a ring memory describes a data memory known in the prior art, the individual total of k memory locations of which are written cyclically, where k is an integer positive number: After all memory locations of the ring memory have been written to for the first time, when the next memory value is stored, started from the first memory location and the value stored there is overwritten, etc. In other words, only the last k values are stored in the ring memory, all other values were overwritten.
  • the Ring memory can preferably be dimensioned in such a way that it contains integer multiples of the drum rotation as the number k of memory locations, since the values determined in step a) fluctuate in the rhythm of the ribs. This prevents the determined values from being subject to large fluctuations.
  • a ring memory represents a variant of a data memory that is optimal for the purpose of the invention, since it always contains only the most recent k values determined in step a), from which the mean value and/or the maximum value is determined. Older values are not included. This ensures that the mean value and/or the maximum value are always up to date.
  • a microcontroller without a floating point unit can preferably be used to calculate the mean value.
  • the mean value is formed over 2 n values.
  • the exponent n can preferably be dimensioned in such a way that it contains integer multiples of the drum rotation, since the values determined in step a) fluctuate with the rhythm of the ribs. This prevents the values determined in step a) from being subject to large fluctuations.
  • the averaging can be formed by summing up the number n of the last values in the data memory and then shifting n places to the right.
  • the values in step a) are determined with a time interval of 100 ms and stored in the ring memory. This preferably takes place only after the laundry care appliance has reached a target speed.
  • the ring memory can include a time window of e.g. 2.1 s, which in this example corresponds to approximately two drum revolutions. The division by shift operation was not used in this example, since a floating point unit is assumed to be given.
  • the last value determined i.e. the current value
  • the mean value of the past 21 values in the parameter set each time step c) is run through. If the last value determined is at least e.g. 60% above the mean value, the drum may be blocked. An increase in the last determined value to 1.2, for example 1.6, times the mean value can thus represent a characteristic signal of drum jamming.
  • the ring memory can preferably not be emptied or refilled when carrying out step d), i.e. when adapting the control of the motor, in particular when reversing, but only stopped. This ensures that any blocking can be detected immediately when restarting.
  • the torque rise is not within the averaging window, particularly when the window is small in time. If the period of time was short, the increase would strongly influence the mean value. For this reason, there is preferably a predetermined time interval between the elements in the ring memory and the current value.
  • the maximum value of the past values stored in the data memory can be compared with the last determined value.
  • an increase in the current value to 1.1, for example 1.5 times the maximum value can represent a characteristic signal of drum jamming.
  • a time window of approximately one rib cycle can be blanked out when considering the maximum value of the past values.
  • the signal characteristic of a blocked drum is detected when the most recent value determined in step a) is 1.2, preferably 1.6 times the mean value determined in step b) or 1.1, preferably exceeds 1.5 times the maximum value determined in step b).
  • the most recent value determined in step a) describes the last value determined in terms of time and is therefore the most up-to-date value. With the values described here, a blocked drum can be detected most clearly.
  • the motor is controlled in step d) in such a way that the motor reverses its direction of movement, changes its speed and/or stops.
  • the motor can also be controlled to perform any combination of reversing the direction of movement, changing the speed, e.g. increasing or decreasing, or stopping.
  • the direction of the torque transmitted to the drum via the drive belt reverses.
  • This can prevent laundry from getting wedged between the drum and a part of the housing, e.g. the balcony.
  • a blocked drum can thus be released by reversing the direction of movement of the motor and thus by reversing the drum.
  • the laundry care machine can thus independently bring the machine into the normal operating state. This improves the ease of use of the machine. In addition, it prevents long machine downtimes that would be caused by an operator manually removing the blocked laundry.
  • the object is achieved by a laundry care appliance according to claim 15.
  • the laundry care appliance according to the invention is designed and set up to carry out the method according to one of claims 1 to 14.
  • the laundry care appliance can preferably be a household or commercial dryer, a household or commercial washing machine or automatic machine or a washer-dryer.
  • Such a laundry care appliance has the advantage that repairs due to a worn drive belt are required much less frequently. This saves repair costs and reduces device downtime due to time-consuming repairs.
  • FIG 1 shows a household dryer 1 as an example of a laundry care appliance 3.
  • the household dryer 1 has an outer housing 5 and a drum 7 rotatably mounted therein.
  • the drum can be loaded with laundry through a loading opening 9 arranged laterally in the housing 5 .
  • a balcony 11 is arranged in the area of the loading opening 9 .
  • the balcony 11 typically includes a lint screen.
  • a drum blockage can occur, for example, due to laundry becoming wedged between the balcony 11 and the drum 7 .
  • FIG 2 shows a schematic structure of the laundry care appliance 3.
  • the laundry care appliance 3 comprises the drum 7, which is rotatably mounted in relation to the housing 5 surrounding the drum 7, a motor 13 with a motor pinion 15, a drive belt 17, the motor pinion 15 or the Motor 13 mechanically coupled to the drum 7, and a controller that controls the motor 13.
  • the motor pinion 15, together with the drive belt 17, transmits torque from the motor 13 to the drum 7, causing the drum 7 to rotate.
  • the motor 13 can be arranged on a motor mount 19 .
  • the motor mount 19 can be pivoted at least at one point 21 .
  • a tension spring 23 applies a force to the motor mount 19, and thus also to the motor 13 and the motor pinion 15, and thereby tensions the drive belt 17.
  • the interior of the drum 7 has ribs 25 which, during normal operation of the laundry care appliance 3, collide with the laundry 27 as the drum rotates and thus advantageously process and/or care for the laundry.
  • Figure 3a and 3b show an exemplary section of a time-resolved torque-forming current 29a of the motor 13 of the laundry care appliance 3 without low-pass filtering and a torque-forming current 29b of the motor 13 with low-pass filtering.
  • Figure 3a shows the normal operating case of a rotating drum 7.
  • Figure 3b shows the case of a drum jam. The values in Figures 3a and 3b were determined or measured during step a) of the method according to the invention.
  • Figures 3a and 3b show the significant improvement in the signal-to-noise ratio of stream 29b through low-pass filtering of stream 29a.
  • step b) of the method according to the invention a parameter set with a single parameter from the values measured in step a) of the torque-generating current in normal operation, which in Figure 3a shown is calculated.
  • the parameter has the difference between the maximum 43 and the minimum 45 of the torque-generating current 29a that is consumed.
  • step c) the parameter is checked for a signal characteristic of drum blockage.
  • a set of limit values with a single limit value is determined from the parameter when the method according to the invention is initially executed for the first time after the setpoint speed has been reached.
  • the limit value can be calculated from 0.3 A in the case of the non-low-pass filtered current 29a and 0.15 in the case of the low-pass filtered current 29b.
  • Figure 4a and 4b show an exemplary section of a frequency spectrum 31 of a torque-generating current of the motor 13 of the laundry care appliance 3.
  • Figure 4a shows the case of a rotating drum 7.
  • Figure 4b shows the case of a drum jam.
  • the frequency spectrum 31 of a rotating drum in Figure 4a shows a clear maximum 33. This maximum 33' is missing in Figure 4b in the event of a drum jam.
  • the course of the method according to the invention takes place analogously to the description of FIG Figures 3a and 3b .
  • Figures 4a and 4b includes the parameter and the limit value calculated from it, for example, the sum of the amplitudes in the frequency range from 0.5 Hz to 2.5 Hz. If the limit value is calculated, for example, as half the parameter, in the case of Figure 4b in step c) a characteristic signal of a drum jam is detected.
  • figure 5 shows an exemplary section of a torque-forming stream of a laundry care appliance 3.
  • a first section 35 in figure 5 shows a time profile of the torque-forming current 37 of a rotating drum 7.
  • a second section 39 shows a torque-forming current 37' that suddenly increases from a blocking time 41 onwards.
  • step a the torque-generating current I q is measured.
  • step f the measured value of the torque-forming current is stored in a ring memory.
  • step b the mean value and/or the maximum value is calculated as a parameter of the parameter set from all the values stored in the ring memory.
  • step c) the last value measured in step a) is compared with the parameter determined in step b). If the last measured value exceeds the maximum, for example by a factor of 1.5, or the mean value, for example by a factor of 1.6, there is a characteristic signal of a blocked drum.
  • step d the motor control is therefore adjusted and the drum is reversed, for example, in order to release the blockage.
  • the following exemplary algorithm can be executed:
  • the basis here is the torque-forming current. This is filtered in a 1 ms time slice with a time constant of 20 ms (to remove measurement noise).
  • This filtered, torque-forming current is stored in an array in the 100 ms time slice. This array contains 10 elements. Since this array is used as a ring memory, the values of the last second are there.
  • Each time in the 100 ms time slice the minimum and maximum values are determined from the array. Every time in the 100 ms time slice it is checked whether the minimum value exceeds a certain minimum value. If this is the case, the difference between the maximum and minimum values is calculated. If this is below a certain threshold, a blockage is detected.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP22158138.2A 2021-09-14 2022-02-23 Procédé de détection d'un blocage de tambour dans un appareil d'entretien du linge, ainsi qu'appareil d'entretien du linge Pending EP4148177A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE20215720A BE1029754B1 (de) 2021-09-14 2021-09-14 Verfahren zur Erkennung einer Trommelblockierung in einem Wäschepflegegerät sowie Wäschepflegegerät
DE102021123706 2021-09-14

Publications (1)

Publication Number Publication Date
EP4148177A1 true EP4148177A1 (fr) 2023-03-15

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Application Number Title Priority Date Filing Date
EP22158138.2A Pending EP4148177A1 (fr) 2021-09-14 2022-02-23 Procédé de détection d'un blocage de tambour dans un appareil d'entretien du linge, ainsi qu'appareil d'entretien du linge

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EP (1) EP4148177A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1734167B1 (fr) * 2005-06-17 2007-09-26 Electrolux Home Products Corporation N.V. Procédé pour mouiller du linge et machine à laver
JP2012170677A (ja) * 2011-02-23 2012-09-10 Panasonic Corp ドラム式洗濯機
EP2206823B1 (fr) * 2008-12-17 2014-10-29 Fisher & Paykel Appliances Limited Machine à laver le linge avec un système de correction d'équilibre
DE102016212525A1 (de) * 2016-07-08 2018-01-11 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102018208242A1 (de) * 2018-05-25 2019-11-28 BSH Hausgeräte GmbH Verfahren zur Erkennung eingeklemmter Wäsche in einem Wäschebehandlungsgerät sowie hierfür geeignetes Wäschebehandlungsgerät
EP3819416A1 (fr) * 2019-11-06 2021-05-12 Miele & Cie. KG Procédé de fonctionnement d'un lave-linge automatique et lave-linge automatique
CN113265838A (zh) * 2021-04-08 2021-08-17 青岛海尔滚筒洗衣机有限公司 滚筒洗衣机的解堵控制方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1734167B1 (fr) * 2005-06-17 2007-09-26 Electrolux Home Products Corporation N.V. Procédé pour mouiller du linge et machine à laver
EP2206823B1 (fr) * 2008-12-17 2014-10-29 Fisher & Paykel Appliances Limited Machine à laver le linge avec un système de correction d'équilibre
JP2012170677A (ja) * 2011-02-23 2012-09-10 Panasonic Corp ドラム式洗濯機
DE102016212525A1 (de) * 2016-07-08 2018-01-11 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102018208242A1 (de) * 2018-05-25 2019-11-28 BSH Hausgeräte GmbH Verfahren zur Erkennung eingeklemmter Wäsche in einem Wäschebehandlungsgerät sowie hierfür geeignetes Wäschebehandlungsgerät
EP3819416A1 (fr) * 2019-11-06 2021-05-12 Miele & Cie. KG Procédé de fonctionnement d'un lave-linge automatique et lave-linge automatique
CN113265838A (zh) * 2021-04-08 2021-08-17 青岛海尔滚筒洗衣机有限公司 滚筒洗衣机的解堵控制方法

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