EP2047024A1 - Method of determining a loading quantity for a laundry-treatment appliance, and laundry-treatment appliance suitable therefor - Google Patents
Method of determining a loading quantity for a laundry-treatment appliance, and laundry-treatment appliance suitable thereforInfo
- Publication number
- EP2047024A1 EP2047024A1 EP07787437A EP07787437A EP2047024A1 EP 2047024 A1 EP2047024 A1 EP 2047024A1 EP 07787437 A EP07787437 A EP 07787437A EP 07787437 A EP07787437 A EP 07787437A EP 2047024 A1 EP2047024 A1 EP 2047024A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- displacement
- container system
- housing
- determined
- 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.)
- Granted
Links
- 238000011068 loading method Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000006073 displacement reaction Methods 0.000 claims abstract description 83
- 238000005406 washing Methods 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims description 20
- 230000005484 gravity Effects 0.000 claims description 12
- 238000013016 damping Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000012360 testing method Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000009987 spinning Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000010412 laundry washing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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
- 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
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/02—Water supply
-
- 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
- D06F2105/42—Detergent or additive supply
-
- 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
- D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/56—Remaining operation time; Remaining operational cycles
-
- 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
- D06F2105/58—Indications or alarms to the control system or to the user
Definitions
- the invention relates to a method for determining a loading amount of a laundry treatment appliance, in particular a washing machine, a washer dryer or a tumble dryer, with a resiliently supported in a housing container system in which a drum for receiving the load is arranged, and with a device to detect a displacement of the container system relative to the housing, comprising the step in which a displacement of the container system is detected in a first direction.
- the invention also relates to a laundry treatment device having a housing, having one or more spring elements which connect the housing to a container system in which a drum for receiving a load is arranged, with a device for detecting a displacement of the container system relative to the housing and with a Device for determining the amount of charge introduced into the drum.
- DE 101 22 749 A1 discloses a method for determining a quantity of laundry and a washing machine for carrying out the method.
- the washing machine has a container system comprising a drum for receiving a laundry load.
- the container system hangs in a housing on two springs and is additionally connected via two dampers, so-called spring piston damper, with the housing.
- the washing machine has a first position sensor arranged next to one of the dampers and a second position sensor arranged in the damper which effects a displacement of a friction lining arranged resiliently in the damper detected. Both transducers are arranged parallel to each other.
- the weight of the laundry determined according to the principle of a spring balance.
- the laundry weight is a measure of the load. With a laundry load unevenly introduced into the drum, the weight of the laundry creates a moment whereby the container system tilts. In such a case, the center of mass of the load is not symmetrical to the center of gravity of the container system. With such an incline, the path changes detected by the transducers are no longer proportional to the weight of the load of laundry introduced into the drum.
- a method and a washing machine with a device for detecting a container displacement is also known from DE 22 04 325 A1.
- the arranged between a container system and a housing displacement sensor also detects only a displacement of the container system in one direction, namely in alignment of the uniaxial transducer.
- a spring piston damper with a displacement measuring device is disclosed in DE 100 46 712 A1.
- This damper is provided for a washing machine, wherein by means of the displacement measuring device, a displacement of a container arranged in the washing machine is detected.
- the path measuring device can detect only one path change in one orientation. From the detected displacement, the weight of the load of laundry introduced into the container can be determined.
- the figures of DE 100 46 712 A1 show a washing machine whose container is suspended on more than two springs. Such a construction can reduce, but not exclude, tilting of the container with loadings of laundry distributed asymmetrically with respect to the center of gravity of the container. Therefore, even with such a structure, the weight of such asymmetrically distributed laundry load is determined only inaccurately.
- the object of the invention is to provide a method and a laundry treatment device which can determine the weight or the amount of a laundry charge introduced into the device as accurately as possible.
- the inventive method for determining a loading amount is provided for a laundry treatment device, in particular a washing machine, a washer-dryer or a tumble dryer, which comprises a resiliently supported in a housing container system in which a drum for receiving the load, and means for detecting a Displacement of the container system relative to the housing, wherein the displacement of the container system is detected in a first direction.
- the weight force not only a displacement of the container system in the direction of the weight of the Loading is effected, but that the container system tend under the weight and / or the weight by other spring elements, for example, arranged between the housing and the container system elastic sleeve or through Hoses, can be partially compensated, is advantageously detected according to the invention, a displacement of the container system relative to the housing in at least a second direction, which is different from the first direction, and the Belandungsmenge depending on the detected displacement in the first and in the further direction certainly.
- the geometric boundary conditions of the container system in particular the distance between the measuring location and the bearing points of the container system, are taken into account, which is why the detection device of the displacement can be advantageously arranged at many measuring locations.
- the detection device of the displacement can be advantageously arranged at many measuring locations.
- a displacement in one direction means both a displacement in one direction and a rotation in one direction of rotation. Therefore, the detection means can either detect displacements in different directions from which rotations can be calculated, or directly detect displacements and / or rotations whose directions or directions of rotation are different.
- a displacement of the container system in a third direction which is different from the first and second directions, detected and determines the loading amount depending on the displacement in the first, the second and third directions. It is particularly advantageous if the displacements are detected in mutually perpendicular directions.
- commercially available 3-axis sensors can be used with particular advantage.
- the manufacturing cost of a washing machine compared to a use of multiple sensors can be reduced.
- the displacement is independent of one another, whereby the calculation of the loading weight can be carried out more easily.
- the offset constants can be combined into a constant.
- the formula is shown for displacements recorded in three directions. The number of terms depends on the sensed directions. If displacements in one direction of rotation are to be taken into account, generally trigonometric functions are to be taken into account, wherein for small angles of rotation the radian measure of the angle can be assumed for the sine of the angle and the value 1 for the cosine of the angle. Thus, even for small angles of rotation, the said formula for determining the load weight is applicable.
- a loading amount is made up of a sum of products each formed of a detected displacement (X 1 , V 1 , Z 1 ) and a proportionality factor (a x , a y , a z ) and at least one offset constant (b x , b y , b z , b 0 ) is calculated. It is also possible to use polynomials of a higher order for the calculation formula.
- the constants are particularly easy to determine by experiments.
- the constants are then determined by solving a corresponding linear system of equations.
- the constants advantageously take into account the geometric dimensions of the laundry treatment appliance, the existing mass distributions of the container system, spring stiffness in the respective directions, characteristics of the detection device, such as gain factors and offset, and the measuring location.
- the constants are stored in a storage device of the laundry treatment appliance.
- such a memory device is part of the detection device or a controller which is connected to the detection device.
- Such tests can be carried out in the laboratory, the determined constants then being valid for a number of laundry treatment appliances of the same construction.
- these tests can also be carried out in a production test after the production of a laundry treatment device, wherein the determined constants are stored after the attempt of the storage device of the respective laundry treatment device.
- manufacturing tolerances of the respective laundry treatment device and the respective detection device can be considered individually.
- the rest position of the container system in the housing is determined after switching on the laundry treatment device and the offset constant or the offset constants are determined as a function of the rest position. It is assumed here that after switching on the laundry treatment appliance is not yet loaded.
- a step of a washing program to dehumidify a laundry load, to determine the rest position of the container system in the housing and to determine the offset constant or the offset constant depending on the rest position with a stationary drum. Since the rest position of the container system after centrifuging depends on the introduced laundry load and the water still bound in the laundry, the dry weight of the introduced laundry load determined at the beginning of a wash program, a maximum drum speed of the preceding spin cycle and optionally a determined type of laundry considered. From the drum speed and possibly the type of laundry, the water bound after the spin can be determined with sufficient accuracy via an allocation table. In particular, it can be checked by comparing the determined offset constants after switching on, whether the measurement was actually carried out on an unloaded laundry treatment appliance.
- the offset constants can be corrected on the basis of the values determined after the spin. Due to these advantageous embodiments, changes in the rest position of the container system due to aging of the springs and drift phenomena of the detection device can be automatically taken into account during the operation of the laundry treatment device.
- the determined loading amount is supplied to a controller of the laundry treating appliance.
- the controller can control a sequence of a selected wash program in Ab- Advantageously affect the load capacity.
- a quantity of water required for the treatment of the laundry, a metered quantity of cleaning and care agent and / or durations of program sections can be adapted to the loading quantity.
- the loading amount can be displayed on a display device connected to the controller.
- the weight of the wet laundry charge is determined continuously or sequentially during a spin of the laundry load from the position of the container system. Thereby the decrease of the weight of the wet laundry during a spin is monitored. From the difference between the weight of the wet laundry load and a dry weight determined at the beginning of a washing program, the amount of water bound in the load or from the ratio of the weights a so-called residual moisture content of the laundry can be determined. Thus, it is possible to continue spinning if necessary at a further increased drum speed until a predetermined residual moisture is reached. It is also possible to determine from a comparison of two successive weight measurements during spin, whether there is still a change in weight, ie whether still bound water is ejected.
- a laundry treatment device in particular a washing machine, a washer-dryer or a tumble dryer, comprising a housing, with one or more spring elements which connect the housing with a Benzolers system in which a drum is arranged to receive a load, provided with a device for detecting a displacement of the container system relative to the housing and with a device for determining the amount of loading introduced into the drum, wherein the detecting device can detect the displacement of the container system in at least two different directions and that the means for determining the loading amount the loaded loading quantity from the recorded displacements in the at least two different directions.
- the detection device may comprise a plurality of sensors, each of which can detect a displacement in one direction.
- the individual sensors are arranged in such a way in the laundry treatment device at measurement locations at which a displacement of the container system in the individual directions due to a load is as large as possible.
- the detection device comprises at least one sensor which can detect the displacement of the container system in at least two directions.
- Such multi-axis sensors are less expensive than several individual sensors.
- Position, displacement or acceleration sensors can be used to detect a displacement. Such sensors are already mass-produced in large numbers, which also have a high accuracy and measurement resolution. When using acceleration sensors that can detect a relative displacement by the twice the time integral of the detected acceleration is formed.
- the acceleration sensors are arranged on the container system. Preferably, position and displacement sensors are used.
- inductive displacement sensors which are connected to the housing and the container system
- strain gauges which are arranged on the spring elements, or non-contact optical, magnetic or capacitive sensor systems are suitable.
- a damping device which is connected to the housing and the container system and which is designed such that during a detection of the displacement of the container system dependent on the loading amount displacement is possible.
- an active damper can be used that is turned off during the detection of the displacement, that is, the damper can produce substantially no damping force.
- the weight of the load acts essentially only against a spring force.
- the laundry treatment device comprises one or more spring piston or Leerhubdämpfer that have no damping effect in a predetermined displacement range. The shift range is just designed so that the rest positions of an unloaded and a maximum loaded container system are just within such a range.
- the laundry treatment device has a damping device which is connected to the housing and the container system whose connection to the housing au ßerraum a plane formed by the connection of the spring elements and the center of gravity of the container system level and at least during the detection of the displacement of the Container system is substantially rigid.
- a damping device which is connected to the housing and the container system whose connection to the housing au ßerrenz a plane formed by the connection of the spring elements and the center of gravity of the container system level and at least during the detection of the displacement of the Container system is substantially rigid.
- one or more friction dampers whose possible resulting static friction force is at least significantly greater than the weight force of a maximum possible laundry load are suitable for such a damping device. Since, in this embodiment, the damping device lies clearly outside the said plane through the center of gravity, a load of laundry always causes the container system to tilt. The degree of inclination depends on the amount of load introduced.
- the loading quantity can be determined by measuring the displacement caused by the inclination. It is accepted that the inclination is also dependent on the center of gravity of the laundry load.
- the proportionality factors and offset constants are preferably determined from experiments in such a way that on average the error for the determination of the loading quantity is as small as possible. Thus, even with such a low-cost solution, a sufficiently accurate loading quantity determination is possible.
- FIG. 1 shows a schematic representation of a washing machine according to a first embodiment
- Figure 2 is a schematic representation of a washing machine according to a second
- Figure 3A a representation of a displacement of the container system due to a introduced into the container system laundry load in the case of the first embodiment
- FIG. 3B a representation of a displacement of the container system due to a load of laundry introduced into the container system in the case of the second
- FIG. 1 shows a washing machine with a housing 1 in which a tub 3, hereinafter also referred to only as a container 3, is arranged, which hangs on two springs 9 and is supported on two spring piston damper 6.
- a drum 8 for receiving laundry 7 is rotatably mounted.
- the drum 8 is connected via a belt drive 4 with a motor 4.
- a balance weight 1 1 is attached on the container 3.
- the washing machine has other components, for example, hoses for supplying and discharging liquids into the container or a sleeve which encloses a loading opening of the drum 8 and the housing 1.
- the housing 1 and the container 3 are at least indirectly connected via the hoses and the sleeve, wherein a force can act on the container 3 via these connections when the container 3 is displaced.
- All rigidly connected to the container 3 components, in particular the drum 8, the belt drive 4, the motor 5 and the balance weight 1 1 can be referred to as a container system or vibration system.
- the position of the center of gravity 14 of the container system results from the mass distribution of the container system, wherein the washing machine is designed such that the center of gravity preferably on the axis of rotation 14 of the drum 8 and on a connecting points of the springs 9 and the damper 6 formed plane 13th lies.
- the position of the container 3 relative to the housing 1 in at least two directions y and z at the measuring point of a position measuring device 2 is determined.
- a first rest position of the container with the measuring device 2 is determined.
- An operator fills in the drum 8, the laundry to be washed 7, wherein under the weight of the laundry 7, the position of the container changed to between the weight of the laundry 7 and the forces acting on the container 3 forces, in particular the support forces generated by the springs to set a balance.
- the position of the container 3 is determined for such a second rest position in the two directions y and z. As shown in Fig.
- the container 3 lowers under the weight of the laundry at the attachment points of the dampers 6 by a length .DELTA.z and slightly twists due to the laundry 7 being located asymmetrically in the drum 8.
- the length .DELTA.z is substantially proportional to the change in the sum of all in the direction z, in the effective direction of the damper 6, acting spring forces, in particular the forces of the spring 9 and arranged in the dampers 6 springs. Since the springs 9 are also slightly twisting, only a portion of the forces of the springs 9, namely only the portion acting in the z direction, counteract the weight force acting in the z direction.
- the positions of the first and second rest position are sent to a program control 10, which is connected to the measuring device 2. From the deviation of the detected rest positions, the displacement V 1 and Z 1 of the container 3 at the measuring location of the measuring device 2 is calculated.
- predetermined proportionality factors a y , a z and predetermined offset constants b y , b z , b 0 are stored in a memory device taking into account the spring constants in the respective directions, the geometrical conditions of the container 3 and the location of the measuring location.
- two measuring devices 2 can be used which can determine a displacement in three directions at two different measuring locations. This makes it possible to determine a shift in all six degrees of freedom.
- the abovementioned calculation formula for the loading amount m is then expanded by the corresponding additional measured variables.
- FIG. 2 Another embodiment of a washing machine is shown in Fig. 2. Notwithstanding the first example, this washing machine has two friction dampers 6a, which are connected to the container 3 outside the plane 12 formed by the springs 9 and the center of gravity 14, preferably at one edge of the container 3. A length change of the friction damper 6a only occurs when a force acts on the dampers 6a which is greater than the static friction force impressed by the friction linings arranged in the dampers 6a.
- the dampers 6a are designed such that the static friction force is significantly greater than the weight of the maximum intended laundry load. Therefore, when the drum 8 is loaded, the length of the dampers 6a will not change under the weight of the loaded laundry 7. Rather, the container 3, as shown in Fig. 3B, to twist the connection point of the damper 6 a on the container 3.
- Such a rotation, which is dependent on the loading weight, is detected by the measuring device 2 in exactly the same way as in the first embodiment, and the weight of the laundry 7 is calculated with the program control device 10 according to the said formula, whereby the predetermined proportionality factors a y , a z and predetermined offset factors. Constants b y , b z , b 0 are adapted according to the changed structure.
- the second embodiment is characterized in particular by the fact that very cost-effective friction dampers 6a can be used for the washing machine and the method for determining a loading weight.
- the proportionality factors a y , a z and offset constants b y , b z are determined from laboratory experiments. These values are stored in the program controller 10. In a production test after the production of a washing machine, such attempts are repeated and, if necessary, the stored values are corrected. For this purpose, a test facility is connected to the program control 10. In the experiments, the drum 8 is loaded with known weights at different locations and recorded the displacement of the container 3 with the measuring device 2 of the washing machine. An algorithm stored in the test facility then determines the corresponding factors a y , a z and constants b y , b z , b 0 from the values of a test series recorded with the measuring device 2.
- the factors a y , a z and constants b y , b z , b 0 determined using the test device are compared with the factors a y , a z and constants b y , b z , b 0 stored in the program control 10 and corrected if necessary in which the new factors a y , a z and constants b y , b z , b 0 are transmitted to the program controller 10 and stored there.
- the position of the unloaded container 3 is determined with the measuring device 2 and stored in the program control 10.
- the data stored in the program control 10 constants b y, b z, b 0 are checked according to any switching on the washing machine, by the determined position is compared with the determined according to the making position when turning. From the deviation, the constants b y , b z , b 0 can be corrected and stored in the program control 10.
- the program control 10 can vary the program sequence of the washing machine depending on the determined loading amount m. Thus, cycle lengths of individual program sections and water volumes required for washing and rinsing are determined as a function of the determined loading amount m.
- the determined loading amount m is displayed on a display device of the washing machine.
- the position of the container 3 at the measuring location and, subsequently, the quantity m wet of the wet laundry 7 introduced into the drum 8 are determined continuously during the spin cycle. In most cases when spinning the laundry 7 is unevenly distributed on the drum wall, creating an imbalance arises that causes vibration of the container system 3 to the center of gravity of the loaded container system. Also at the measuring location of the position measuring device of the container oscillates around a momentary rest position, which is determined by sliding average over detected displacements. The current rest position at the measuring location, also referred to as the position of the container system or of the container 3, is used to determine the amount m wet of the wet laundry.
- the proportion of bound water is determined. This ratio is compared with a predetermined proportion value, which represents a residual moisture of the laundry 7 to be achieved. Upon reaching the predetermined proportion value, the spin cycle is terminated by the program control.
- the position of the container 3 continuously detected during spinning is compared with a previously detected position.
- the spin cycle is stopped in this case, when the change of position is less than a predetermined threshold, that is, no more water is thrown out of the laundry 7 again.
- the exemplary embodiments each have a biaxial position-measuring device 2.
- Alternative designs may also include several three-axis position-measuring devices. have with which the displacement of the container system in the other, not shown in Figures 3A and 3B levels detected.
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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
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07787437T PL2047024T3 (en) | 2006-07-24 | 2007-07-12 | Method of determining a loading quantity for a laundry-treatment appliance, and laundry-treatment appliance suitable therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006034190A DE102006034190A1 (en) | 2006-07-24 | 2006-07-24 | A method for determining a loading amount of a laundry treating appliance and a laundry treating appliance suitable therefor |
PCT/EP2007/057166 WO2008012206A1 (en) | 2006-07-24 | 2007-07-12 | Method of determining a loading quantity for a laundry-treatment appliance, and laundry-treatment appliance suitable therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2047024A1 true EP2047024A1 (en) | 2009-04-15 |
EP2047024B1 EP2047024B1 (en) | 2012-05-02 |
Family
ID=38729069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP07787437A Active EP2047024B1 (en) | 2006-07-24 | 2007-07-12 | Method of determining a loading quantity for a laundry-treatment appliance, and laundry-treatment appliance suitable therefor |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2047024B1 (en) |
AT (1) | ATE556169T1 (en) |
DE (1) | DE102006034190A1 (en) |
PL (1) | PL2047024T3 (en) |
WO (1) | WO2008012206A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102017223002A1 (en) * | 2017-12-18 | 2019-06-19 | BSH Hausgeräte GmbH | Household appliance for the care of laundry with measuring device for determining a load and method |
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DE102008054931B4 (en) | 2008-12-18 | 2012-03-08 | BSH Bosch und Siemens Hausgeräte GmbH | Method for controlling a household washing machine |
DE102010042173A1 (en) * | 2010-10-07 | 2012-04-12 | BSH Bosch und Siemens Hausgeräte GmbH | Method for tarring between oscillating system and housing of drum washing machine, involves obtaining current rest position of attenuator, by comparing rest position of oscillation system and current position |
KR20120055992A (en) * | 2010-11-24 | 2012-06-01 | 삼성전자주식회사 | Washing machine and method to sense suds thereof |
DE102011087365A1 (en) | 2011-11-29 | 2013-05-29 | BSH Bosch und Siemens Hausgeräte GmbH | Method and device for determining the load of laundry in the laundry drum of a household washing machine |
DE102014204079A1 (en) | 2014-03-06 | 2015-09-10 | BSH Hausgeräte GmbH | Method for determining a loading weight of a vibrating system of a domestic appliance for the care of items of laundry and household appliance |
DE102014107705A1 (en) * | 2014-06-02 | 2015-12-03 | Miele & Cie. Kg | Method for operating a centrifugal machine and a centrifugal machine |
CH710592A1 (en) * | 2015-01-06 | 2016-07-15 | V-Zug Ag | Washing with unbalance compensation. |
DE102015208648A1 (en) | 2015-05-11 | 2016-11-17 | BSH Hausgeräte GmbH | A method for determining the mass when placing a laundry load in a laundry drum and laundry treating machine for performing the method |
CN109778486B (en) * | 2017-11-13 | 2022-07-08 | 天津海尔洗涤电器有限公司 | Washing machine clothes weighing method and washing machine |
CN113308840B (en) * | 2021-05-28 | 2022-11-11 | 合肥荣事达电子电器集团有限公司 | Roller assembly for washing machine |
DE102021131806A1 (en) | 2021-12-02 | 2023-06-07 | Marquardt Gmbh | Method for using a sensor in a maintenance mode of a device and a household appliance on which the method can be carried out |
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DE2204325C2 (en) | 1972-01-26 | 1984-05-30 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Drum washing machine for spinning |
JPH07136379A (en) * | 1993-11-11 | 1995-05-30 | Matsushita Electric Ind Co Ltd | Washing machine |
JPH08164295A (en) * | 1994-12-12 | 1996-06-25 | Matsushita Refrig Co Ltd | Fully automatic washer |
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DE19847487C2 (en) * | 1998-10-15 | 2001-12-20 | Miele & Cie | System for compensating the offset of a load measuring device |
DE10046712A1 (en) | 1999-10-14 | 2001-04-19 | Suspa Holding Gmbh | Shock absorber esp. for washing machine with spinning operation with tubular housing with plunger guided sliding in this and measuring element is respectively connected with housing and plunger and their relative position |
DE10122749B4 (en) * | 2001-05-10 | 2005-01-27 | Miele & Cie. Kg | Washing machine with a device for determining the laundry weight and method for determining the laundry weight |
DE10334572B3 (en) * | 2003-07-28 | 2004-08-12 | Miele & Cie. Kg | Laundry weight determination method for washing machine using measuring circuit detecting lowering of washing liquid container resulting from weight of laundry |
CN1926276B (en) * | 2004-03-03 | 2010-09-08 | 舒适宝控股有限公司 | Connecting device for connecting of vibration damper to washing machine and/or frame of washing machine |
DE102004043838B3 (en) * | 2004-09-08 | 2005-05-25 | Miele & Cie. Kg | Operating washing machine involves activating control unit as soon as a read-in value of a cyclically read container weight sensor exceeds a tolerance level relative to stored value(s) |
JP4603324B2 (en) * | 2004-09-13 | 2010-12-22 | パナソニック株式会社 | Drum washing machine |
ITTO20050297A1 (en) * | 2005-05-02 | 2006-11-03 | Elbi Int Spa | WASHING MACHINE WITH LOADING SENSOR |
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2006
- 2006-07-24 DE DE102006034190A patent/DE102006034190A1/en not_active Withdrawn
-
2007
- 2007-07-12 EP EP07787437A patent/EP2047024B1/en active Active
- 2007-07-12 AT AT07787437T patent/ATE556169T1/en active
- 2007-07-12 WO PCT/EP2007/057166 patent/WO2008012206A1/en active Application Filing
- 2007-07-12 PL PL07787437T patent/PL2047024T3/en unknown
Non-Patent Citations (1)
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See references of WO2008012206A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102017223002A1 (en) * | 2017-12-18 | 2019-06-19 | BSH Hausgeräte GmbH | Household appliance for the care of laundry with measuring device for determining a load and method |
Also Published As
Publication number | Publication date |
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ATE556169T1 (en) | 2012-05-15 |
PL2047024T3 (en) | 2012-09-28 |
EP2047024B1 (en) | 2012-05-02 |
DE102006034190A1 (en) | 2008-01-31 |
WO2008012206A1 (en) | 2008-01-31 |
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