WO2016180608A1 - Procédé de détermination de la masse lors de l'introduction d'un lot de linge dans un tambour de lavage et machine de traitement du linge permettant la mise en œuvre du procédé - Google Patents

Procédé de détermination de la masse lors de l'introduction d'un lot de linge dans un tambour de lavage et machine de traitement du linge permettant la mise en œuvre du procédé Download PDF

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Publication number
WO2016180608A1
WO2016180608A1 PCT/EP2016/058648 EP2016058648W WO2016180608A1 WO 2016180608 A1 WO2016180608 A1 WO 2016180608A1 EP 2016058648 W EP2016058648 W EP 2016058648W WO 2016180608 A1 WO2016180608 A1 WO 2016180608A1
Authority
WO
WIPO (PCT)
Prior art keywords
laundry
oscillating system
shock absorber
inclination
mass
Prior art date
Application number
PCT/EP2016/058648
Other languages
German (de)
English (en)
Inventor
Ansgar RISCHKE
Antje Rahfoth
Original Assignee
BSH Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Priority to CN201680027436.7A priority Critical patent/CN107636224B/zh
Priority to EP16717160.2A priority patent/EP3294941B1/fr
Publication of WO2016180608A1 publication Critical patent/WO2016180608A1/fr

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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
    • 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
    • D06F2103/26—Imbalance; Noise level
    • 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
    • D06F34/16—Imbalance

Definitions

  • the invention relates to a method for determining the laundry mass when being introduced into a laundry treatment machine, in particular a washing machine, a washer dryer or a tumble dryer, with one in one Housing on at least two with respect to the center of gravity intersecting arranged distributed locations resiliently supported vibration system of a carrier and a drum mounted therein and with a means for detecting the displacement of the container system relative to the housing.
  • the invention also includes a laundry treating machine of the type described above, the oscillating system of which is suspended on springs and calmed by shock absorbers or mounted on struts, the at least one shock absorber of which is provided with a displacement sensor.
  • EP 2 047 024 B1 discloses such a method in which a device detects the displacement of the oscillating system in all three possible directions x, y and z during the introduction of laundry into the laundry drum and from the detected and further system parameter values and proportionality factors with a simple algorithm, the mass of the introduced laundry is calculated. Because washing machines are equipped with dampers, preferably friction dampers, between the vibrating system and the casing because of their centrifugal spin method used in the course of the treatment process, the vibratory system does not move continuously during the introduction of the laundry because the applied gravitational force in each of the dampers overcome systemic friction forces before a newly balanced displacement position of the vibration system can be established again. Thus, the calculated laundry masses are rarely sufficiently accurate for the subsequent treatment process.
  • an acceleration sensor has already been used for the monitoring of fault conditions of the fixedly connected to it vibration system (DE 10 201 1 089 624 A1).
  • an error condition on the oscillating system such as a heavy wear or the breakage of a spring or a damper.
  • the invention is an object of the invention to specify the detection of the reduction of the vibration system from the rest position as a function of the weight of the introduced laundry items and to distinguish from extraneous influences.
  • an inventive method which is determined by the features mentioned above and by the features of the characterizing part of claim 1.
  • independent physical means are used to record the path of a lowering of the oscillating system from the resting position and the direction and angle of the oscillating system's inclination relative to its normal position in the inoperative position and the deviations of the subsidence and inclination together to calculate the input Mass used. Due to the independent means, it is possible different causes for a certain reduction and tilt to assess differently and allocate.
  • the method of the invention can determine the load very accurately beyond such a known estimation method addition.
  • the method according to the invention is more cost-effective or offers significantly higher accuracy with the same amount of effort. This is mainly due to the additional knowledge of the tendency of the vibrating system during loading.
  • 1 is a schematically illustrated washing machine whose oscillating system is suspended from two springs and placed on two shock absorbers, in a view in the direction of the axis of the unloaded laundry drum,
  • FIG. 2 shows a washing machine according to FIG. 1 in a position of the oscillating system after eccentric loading
  • FIG. 3 shows a washing machine according to FIG. 1 in a position of the oscillating system after central loading
  • FIG. 4 is a schematically illustrated washing machine, the oscillating system is placed on three struts, in a view from above of the unloaded laundry drum,
  • FIG. 5 shows a washing machine according to FIG. 5 in a side view perpendicular to the axis of the unloaded laundry drum in a position of the oscillating system after one-sided loading by a laundry load and
  • FIGS. 5 and 6 shows a washing machine according to FIGS. 5 and 6 in a position of the oscillating system after a central load.
  • All washing machines shown have a housing 1, in which a vibrating system 2 is mounted to it vibrating.
  • the oscillating system 2 includes a laundry drum, not shown in detail, which is rotatably mounted about an axis 3 within a tub - according to the outer contour of the oscillating system 2.
  • the oscillating system 2 also includes an unillustrated drive motor and a transmission for the laundry drum. So that the oscillating system 2 can oscillate within the housing, it is articulated on shock absorbers or on springs. As shock absorbers, friction dampers are used regularly in the washing machine industry. For detecting the deflection range of the oscillating system during spinning, so-called displacement sensors are frequently used, which shorten or extend the deflection.
  • the oscillating system 2 is suspended at the top on springs 4 and placed on shock absorbers 5 at the bottom.
  • Fig. 1 shows this washing machine in an unloaded state.
  • the oscillating system 2 is adjusted by the springs 4 and shock absorber 5 in a so-called rest position.
  • a displacement sensor 6 which is attached to one of the shock absorbers 5, the path reading "0".
  • another sensor an acceleration sensor 7, mounted on top of the vibrating system 2, based on a different physical principle than the displacement sensor 6. While the latter measures a distance, the measuring principle of the acceleration sensor 7 is based on the deviation of its position from vector of earth acceleration.
  • the position vector 8 coincides with the vector of gravitational acceleration; Therefore, the acceleration measurement value "0" also results at the acceleration sensor 7.
  • Both measured values on "0" allow for a calculation result that indicates an empty laundry drum.
  • Fig. 2 In the loading example of Fig. 2 is a moderate laundry items W1 right of the vertical of the unloaded laundry drum. As a result, the oscillating system 2 sinks somewhat, specifically on the left shock absorber 5 more than on the right.
  • the path measured value at the displacement sensor 6 here corresponds, for example, to the value "5".
  • the acceleration sensor 7 now shifts its position, since the oscillating system 2 has tilted slightly to the right, correspondingly far to the right, so that its position (vector 8) deviates to the left by the angle ⁇ from the vector G of gravitational acceleration. In the calculation of the mass of the loading amount, this angle ⁇ corrects the value given by the path measurement value "5", which, taken into account in the calculation alone, would simulate a larger load.
  • the loading example of Fig. 3 shows a symmetrical loading of the laundry drum, so that both shock absorbers sink 5 by the same path. Therefore, the value "5" of the displacement sensor 6 can be used directly to evaluate the mass of the load; because the acceleration sensor 7 indicates a vector angle ⁇ against the gravitational acceleration G of "0 °".
  • the example described already improves the accuracy of the load calculation value compared to the prior art, because recently also taken into account that the load on the vibrating system 2 by the inserted laundry items W1 and W2 can be quite unbalanced.
  • the sole application of the displacement measurement value would be a symmetrical lowering of the vibration system 2, which, as the example of FIG. 2 shows, in many cases deviates from the actual state. Without this consideration, the displacement sensor 6 in FIG. 2 would have signaled an excessive amount of charge. In FIG. 3, for example, it indicates the same depression, although a clearly heavy laundry item W2 has been entered.
  • This improvement can be effected in that at fixed intervals during insertion of the laundry items a measure for releasing all shock absorbers from their static friction state in the sliding friction (so-called "break-off") is made.
  • the distances can generally be defined as evenly short, they can be determined by the respective insertion of laundry or by a calculated average of the detected feeds of laundry.
  • a measure may be a targeted drive pulse for the laundry drum.
  • the speed of the laundry drum may be equal to or higher than the speed at which the laundry is treated during the washing process for the drive pulse.
  • a then-adjusting state can also be displayed or verified with the acceleration sensor 7. Assuming that the system is lowered vertically with continuous loading, the acceleration sensor 7 thus indicates no deviation from the vector G of the acceleration due to gravity, the deflection indicated by the travel sensor 6 is immediately decisive for the instantaneous loading. Otherwise, a conditional on the state of the vibrating system 2 correction factor would have to be considered.
  • Acceleration sensors are already known in the prior art which can generate measured values as a function of deflections in a plurality of axes.
  • an acceleration sensor 7 By using such an acceleration sensor 7, on the one hand, such a correction of the static friction can be more reliably calculated in a targeted "broken" oscillatory system.
  • the loads of those shock absorbers which are not equipped with a displacement sensor 6, as explained with reference to the following example, can be better estimated.
  • the oscillating system 2 according to FIG. 4 is placed on three so-called struts 10, 1 1 and 12.
  • This combines one or more compression springs with a shock absorber per strut.
  • the use of such struts therefore eliminates the suspension of the oscillating system 2 at the top mounted springs (4 in Fig. 1).
  • the strut 10 is provided with a displacement sensor 6 according to the example of FIGS. 1 to 3.
  • a multiaxial measuring acceleration sensor 13 is mounted on the housing 1, the deflections can measure, for example, in the direction x of the axis 3 of the laundry drum and in the horizontal direction y transverse to the drum axis 3.
  • Fig. 5 shows a washing machine whose laundry load W3 unilaterally heavily loaded the strut 10, which therefore sinks disproportionately strong.
  • the displayed measured value "7" of the displacement sensor 6 is, however, in the calculation process with the angular values of the acceleration sensor 13 deviating from the acceleration vector G, ie the angle ⁇ in the X direction and the angle ⁇ in the y direction (the latter can not be seen here), processed, so that at the end of the actual load state corresponding, corrected mass value for the introduced laundry items W3 can be displayed, no matter where the laundry drum, the mass of the laundry W3 concentrated.
  • Fig. 6 is again - as in Fig. 3 - given the rare state of a symmetrically distributed mass of the laundry W4, so that all struts 10, 1 1, 12 - equal system parameter sizes assumed - sinking deep, namely until Value "5", as the displacement sensor 6 on the strut 10 displays.
  • This symmetrical distribution is also indicated by the acceleration sensor 13, whose measuring vector 8 coincides with the vector G of gravity in this example, that is to say in FIG. H. its angle values are equal to "0".
  • the advantage of the method according to the invention is particularly noticeable when using a multiaxial acceleration sensor 13 (FIGS. 4 to 6). Namely, an increasing load is also displayed when the displacement sensor 6 indicates no change when the shock absorber of its shock absorber 10 is still in the friction rubbing, but the vibration system has already tilted by at least one further shock absorber 1 1 or 12 sunk is. As a result, a new inclination position of the oscillatory system 2 is achieved, which is indicated by the change in angle of the measuring vector 8 of the acceleration sensor 13. In addition, it can also be recognized whether during loading a single shock absorber overcomes its static friction, because then adjusts a sudden change in the inclination of the vibrating system 2 in the direction of this shock absorber.
  • Struts 1 1 and 12 load was increased slow changes unchanged all struts are free; load was increased slow change in tilt in RichFederbein 12 is stuck; spring struts 10 and 1 1 load has been increased etc. etc. etc.
  • the signal of the displacement sensor 6 with the inclination of the vibration system 2 (angle ⁇ or ß of the acceleration sensor 13) are charged to the determined from the Wegensorsignal Correct the value of the mass of the load accordingly.
  • the static load on all shock absorbers which is maintained at the same time as the load is continued, can no longer be determined without further measures.
  • even the acceleration sensor 13 would not change the inclination angle ⁇ or ⁇ more Show. In such a case, before starting the program, for example, a movement impulse for the laundry drum could be inserted.
  • the laundry drum is empty or extremely lightly loaded, so that only very small, changed forces on the shock absorbers arise due to a drum rotation and these can not change their piston position, or
  • the measure should be repeated with at least one changed parameter.
  • the motion pulse could be repeated at a higher speed of the laundry drum.
  • a further repetition can be decided depending on whether the detected displacement sensor signal indicates loading at all. If this is not the case, cause 2 can be assumed and the action is not repeated. A breakaway is then not possible or only with even higher speeds. However, this would not be necessary anymore because obviously there is no or only very little loading.

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  • 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

L'invention concerne un procédé de détermination de la masse du linge destiné à être introduit dans une machine de traitement du linge, en particulier une machine à laver, un lave-linge-séchant ou un sèche-linge, au moyen d'un système oscillant (2) composé d'un support dans lequel est logé un tambour de lavage et en appui élastique dans un corps (1) en au moins deux endroits répartis par rapport à la verticale croisant le centre de gravité, et au moyen d'un dispositif permettant de détecter (6, 7, 13) le déplacement du système oscillant (2) par rapport au corps (1). L'invention vise à préciser la détection de l'abaissement du système d'oscillation à partir de la position de repos en fonction du poids du linge introduit par rapport au procédé connu d'après l'état de la technique et à pouvoir la distinguer des influences extérieures. A cet effet, selon l'invention, à l'aide de moyens physiques indépendants les uns des autres, la trajectoire d'un abaissement du système oscillant (2) à partir de la position de repos d'une part et la direction x ou y et l'angle α ou ß d'une inclinaison du système oscillant (2) par rapport à sa position normale dans la position de repos d'autre part sont détectées et les écarts détectés de l'abaissement et de l'inclinaison sont utilisés conjointement pour calculer la masse introduite.
PCT/EP2016/058648 2015-05-11 2016-04-19 Procédé de détermination de la masse lors de l'introduction d'un lot de linge dans un tambour de lavage et machine de traitement du linge permettant la mise en œuvre du procédé WO2016180608A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680027436.7A CN107636224B (zh) 2015-05-11 2016-04-19 用于在将批量洗涤物放入到洗涤筒中时确定重量的方法以及用于实施所述方法的衣物处理机
EP16717160.2A EP3294941B1 (fr) 2015-05-11 2016-04-19 Procédé de détermination de la masse lors de l'introduction d'un lot de linge dans un tambour de lavage et machine de traitement du linge permettant la mise en oeuvre du procédé

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015208648.8 2015-05-11
DE102015208648.8A DE102015208648A1 (de) 2015-05-11 2015-05-11 Verfahren zum Bestimmen der Masse beim Einbringen eines Wäschepostens in eine Wäschetrommel und Wäschebehandlungsmaschine zum Durchführen des Verfahrens

Publications (1)

Publication Number Publication Date
WO2016180608A1 true WO2016180608A1 (fr) 2016-11-17

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EP (1) EP3294941B1 (fr)
CN (1) CN107636224B (fr)
DE (1) DE102015208648A1 (fr)
WO (1) WO2016180608A1 (fr)

Cited By (1)

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CN113957659A (zh) * 2021-12-07 2022-01-21 四川虹美智能科技有限公司 一种滚筒洗衣机的称重方法、装置和滚筒洗衣机

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DE102016225609A1 (de) 2016-12-20 2018-06-21 BSH Hausgeräte GmbH Waschtrockner und System zur Reinigung und Trocknung von Wäsche sowie Verfahren zu deren Betrieb
DE102017223002A1 (de) * 2017-12-18 2019-06-19 BSH Hausgeräte GmbH Haushaltsgerät zur Pflege von Wäschestücken mit Messvorrichtung zur Bestimmung einer Beladungsmenge sowie Verfahren
CN111826887B (zh) * 2019-03-29 2022-09-23 青岛海尔洗衣机有限公司 一种洗衣机的控制方法及洗衣机
CN112227021B (zh) * 2019-06-27 2023-05-23 青岛海尔智能技术研发有限公司 洗衣机、用于控制洗衣机的方法及装置
CN112575537B (zh) * 2019-09-27 2024-06-14 青岛海尔洗衣机有限公司 一种壁挂洗衣机及具有减震功能的壁挂结构
JP7442126B2 (ja) * 2019-12-10 2024-03-04 青島海爾洗衣机有限公司 ドラム式洗濯機
CN112522906B (zh) * 2020-11-27 2021-12-03 珠海格力电器股份有限公司 一种滚筒式衣物处理装置的偏心值检测方法及装置

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WO2007031821A1 (fr) * 2005-09-14 2007-03-22 Indesit Company S.P.A. Appareil ménager pour traiter des produits souples avec un capteur de déplacement
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WO2009083760A1 (fr) * 2007-12-27 2009-07-09 Indesit Company S.P.A. Procédé pour estimer le poids du contenu d'un appareil domestique
EP2047024B1 (fr) 2006-07-24 2012-05-02 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour déterminer une quantité de charge d'un appareil de traitement du linge et appareil de traitement du linge adapté
DE102011089624A1 (de) 2011-12-22 2013-06-27 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät zur Pflege von Wäschestücken sowie Verfahren zum Bestimmen eines Fehlerzustands einer Schwingvorrichtung eines Haushaltsgeräts

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DE102008021598A1 (de) * 2008-04-30 2009-11-05 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrocknungsgerät und Verfahren zur Steuerung eines Trocknungsvorgangs des Wäschetrocknungsgeräts
DE102009028772A1 (de) * 2009-08-21 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Hausgerät mit einem Dämpfer

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Publication number Priority date Publication date Assignee Title
WO2007031821A1 (fr) * 2005-09-14 2007-03-22 Indesit Company S.P.A. Appareil ménager pour traiter des produits souples avec un capteur de déplacement
EP2047024B1 (fr) 2006-07-24 2012-05-02 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour déterminer une quantité de charge d'un appareil de traitement du linge et appareil de traitement du linge adapté
WO2009083760A1 (fr) * 2007-12-27 2009-07-09 Indesit Company S.P.A. Procédé pour estimer le poids du contenu d'un appareil domestique
DE202008005860U1 (de) * 2008-04-28 2008-07-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wäschebehandlungsgerät
DE102011089624A1 (de) 2011-12-22 2013-06-27 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät zur Pflege von Wäschestücken sowie Verfahren zum Bestimmen eines Fehlerzustands einer Schwingvorrichtung eines Haushaltsgeräts

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113957659A (zh) * 2021-12-07 2022-01-21 四川虹美智能科技有限公司 一种滚筒洗衣机的称重方法、装置和滚筒洗衣机
CN113957659B (zh) * 2021-12-07 2023-04-07 四川虹美智能科技有限公司 一种滚筒洗衣机的称重方法、装置和滚筒洗衣机

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Publication number Publication date
EP3294941A1 (fr) 2018-03-21
CN107636224A (zh) 2018-01-26
CN107636224B (zh) 2019-12-20
EP3294941B1 (fr) 2019-06-12
DE102015208648A1 (de) 2016-11-17

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