EP2599424B1 - Dishwasher - Google Patents
Dishwasher Download PDFInfo
- Publication number
- EP2599424B1 EP2599424B1 EP20120192513 EP12192513A EP2599424B1 EP 2599424 B1 EP2599424 B1 EP 2599424B1 EP 20120192513 EP20120192513 EP 20120192513 EP 12192513 A EP12192513 A EP 12192513A EP 2599424 B1 EP2599424 B1 EP 2599424B1
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- EP
- European Patent Office
- Prior art keywords
- door
- dishwasher
- sensor
- peak
- axis
- 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.)
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- 230000035939 shock Effects 0.000 claims description 20
- 230000005484 gravity Effects 0.000 claims description 15
- 230000001133 acceleration Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 10
- 230000001052 transient effect Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000003599 detergent Substances 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4251—Details of the casing
- A47L15/4257—Details of the loading door
- A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0049—Detection or prevention of malfunction, including accident prevention
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4293—Arrangements for programme selection, e.g. control panels; Indication of the selected programme, programme progress or other parameters of the programme, e.g. by using display panels
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4251—Details of the casing
- A47L15/4257—Details of the loading door
- A47L15/4263—Door sealing arrangements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/26—Loading door status, e.g. door latch opened or closed state
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/32—Vibration or sound detection
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/26—Indication or alarm to the controlling device or to the user
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/32—Stopping or disabling machine operation, including disconnecting the machine from a network, e.g. from an electrical power supply
Definitions
- the present invention relates to a method for controlling a dishwasher.
- Dishwashers comprising a contact sensor which signals opening of the dishes introduction/extraction door are well known.
- Said sensor comprises two conductor elements positioned on the door.
- the dishwasher comprises a striking portion which in the closed position encounters the door.
- This striking portion comprises a lance which when the door is closed places the two conductor elements in contact with each other. When the door is open the two conductor elements are distant from each other and this determines interruption of the passage of electrical current between them.
- DE102010015849 discloses a dishwasher provided with a tilt sensor which detects the position of the dishwasher door; the tilt sensor is used to turn on a illumination device when door has been opened to an angle of at least 45°.
- the technical task at the basis of the present invention is to propose a dishwasher enabling the components of it to be optimised, reducing its costs and overall dimensions.
- reference number 1 denotes a dishwasher comprising:
- the door 3 giving access to the washing compartment 2 enables introduction and extraction of the dishes from the washing compartment 2.
- the door 3 comprises a sensor 4 which takes a measurement representing the gravity acceleration component at least along a first axis 40 which is integral with the door 3.
- the sensor 4 measures the gravity acceleration component at least along a first axis 40 which is integral with the door 3 or a value proportionate to it. This enables detection of the inclination of the door 3 and/or abnormal internal vibrations and/or shocks from the outside and associated with predetermined user commands.
- Said sensor 4 is normally indicated in the technical sector as an accelerometer (for example, said accelerometer is the MEMS type).
- the sensor 4 is identified by the acronym LSM303DLHC and is supplied by ST Microelectronics.
- the door 3 is substantially parallel to a placement plane 31, said placement plane 31 being integral to the door 3.
- the first axis 40 is at a right angle to the placement plane 31.
- the gravity acceleration component along the first axis 40 is minimum in absolute value (even being zero) when the door is closed in a substantially vertical position, whilst it is maximum in absolute value when the door 3 is open in a horizontal position. Advancement as a function of time of the gravity acceleration component along the first axis 40 is illustrated in figure 5 in the case of a cycle with full load without detergent and in figure 8 in the case of a cycle without load with detergent.
- the peaks indicated in figures 5 and 8 with references 100, 200, 300 refer to opening of the door.
- the peaks indicated in figure 5 with references 101, 201, 301, 401 refer each to the shock which accompanies closing of the door.
- Figure 9 shows an enlarged view of figure 8 and shows the transient which accompanies opening of the door 3.
- the duration of the transient depends on the speed of opening of the door 3 (for example, said transient having a duration of 1.5 seconds).
- the sensor 4 may also detect the gravity acceleration component along a second axis 41 which is integral with the door 3.
- second axis 41 is at a right angle to the first axis 40 (advancement as a function of time of the gravity acceleration component along the second axis 41 is illustrated in figure 3 in the case of a cycle with full load without detergent and in figure 6 in the case of a cycle without load with detergent).
- the second axis 41 is vertical when the door 3 is closed.
- the sensor 4 is capable of detecting the gravity acceleration component along a third axis 42 which is integral with the door 3.
- the third axis 42 is at a right angle to the first and to the second axis 40, 41 (advancement as a function of time of the gravity acceleration component along the third axis 42 is illustrated in figure 4 in the case of a cycle with full load without detergent and in figure 7 in the case of a cycle without load with detergent).
- the first and the second and the third axes 40, 41, 42 are at right angles two by two. They define a Cartesian triad.
- the third axis 42 is parallel to the axis of rotation 30. Figures 3,4,5 , therefore illustrate the signal detected by the sensor 4 in the same time interval along the three right-angled axes indicated above.
- the signal of figure 5 is the one best usable to control opening of the door 3 and/or the degree of opening of the door 3 and/or closure of the door 3.
- the signals of figures 4 and 7 being detected along a parallel axis to the axis of rotation 30 do not, on the other hand, provide indications on the degree of opening of the door 3. What is indicated with reference to figures 3,4,5 may be repeated for figures 6,7,8 , taking into account the different type of cycle.
- the first axis 40 is not parallel to said axis of rotation 30.
- the gravity component along said axis 30 would be virtually constant (except for perhaps detecting vibrations at the moment when the door 3 comes into contact with or is disconnected from a first part of the dishwasher, said first part surrounding an opening of the washing compartment 2 and encountering the door 3 in a closed position).
- the sensor 4 is integrated in door 3 position detection means. Every inclination of the door 3 relative to the horizontal position is therefore associated with a corresponding value of the gravity acceleration component along the first axis 40 and the sensor 6 enables determination of a parameter, typically an electrical parameter, associated with said value.
- the senor 4 is integrated in a user interface which detects one or more shocks from the outside and associated with predetermined user commands. This function therefore enables a user to dialogue with the dishwasher in an extremely simplified and rapid manner, using a pre-coded code.
- this function is particularly useful in the case of a fully integrated dishwasher.
- a display visible from the outside is not present.
- This causes difficulties in dialoguing with the dishwasher 1, for example there are difficulties for the user in understanding when the washing cycle is complete.
- Using the present invention it is possible to communicate with the dishwasher 1, even in the absence of visible buttons or switches and without the need to open the door 3.
- the dishwasher 1 may also comprise acoustic means or lights (typically of modest dimensions) capable of responding to prompts of the user.
- acoustic means or lights typically of modest dimensions
- the user by hitting the door 3 and causing the sensor 4 to vibrate with a predetermined prompt (for example, two consecutive taps) may send a request for information to the dishwasher 1 (for example: is the washing cycle finished?).
- the dishwasher 1 may respond with a prerecorded voice message or a predetermined acoustic signal.
- the sensor 4 is integrated in abnormal vibration detection means.
- the vibrations are in any case picked up by the sensor 4.
- the sensor 4 could therefore pick up abnormal vibrations which could signify a malfunction or warn of an imminent breakage.
- the frequency of moving elements forming part of the dishwasher 1 is well known (for example, should the rotating spray arms positioned in the washing compartment come into contact with the dishes, vibrations would be produced which could be transmitted through structures of the dishwasher 1 and therefore detected by the sensor 4).
- the abnormal vibration detection means comprise signalling devices capable of communicating the anomaly to a user and, in the most serious cases, could even stop functioning of the dishwasher 1.
- the dishwasher 1 comprises means of release/retention of the door 3 to remaining parts of the dishwasher (for example a hook). These means of release/retention of the door 3 compress a seal when the door 3 is closed; when the door 3 is closed, said seal remains positioned between the door 3 and the remaining parts of the dishwasher 1, guaranteeing the hydraulic seal.
- the dishwasher 1 comprises means which compress the seal when the door 3 is closed. Further examples of means which compress the seal are elastic means integrated into a hinge which enables rotation around an axis of rotation 30. Alternatively, said means which compress the seal are magnetic means which hold the door 3 in a closed position.
- the door 3 comprises/is formed of a first and a second portion 32, 33 positioned in succession. Extension of the first portion 32 being higher or equal to extension of the second portion 33.
- the first portion 32 integrates the axis of rotation 30 (or at least is positioned at the axis of rotation 30).
- the second portion 33 projects cantilevered from the first portion 32.
- the sensor 4 is integrated in the second portion 33 of the door 3. This zone of the door 3 is, in fact, powered electrically, since it generally houses command buttons or displays and is easily accessible even for inspection and maintenance operations.
- the sensor 4 comprises/is operatively connected to a local processor.
- the object of the present invention is a method of control of the position of the door 3 of a dishwasher 1 presenting one or more of the characteristics indicated above.
- the method of control of the position of the door 3 comprises the step of measuring through the agency of the sensor 4 of the dishwasher 1 a first quantity connected with the gravity acceleration component along the first axis which is integrated with the door 3 (see, for example, figures 5 or 8 ).
- said method also comprises the step of comparing the values taken on by the first quantity with a predetermined threshold value. If the values taken on over time by the first quantity cross the predetermined threshold value to define a peak, the method comprises directly or indirectly comparing the values taken on by the first quantity in a first predetermined time interval upstream of said peak and in a second predetermined time interval downstream of said peak.
- a peak is indicated by reference 501
- the first predetermined interval is indicated by reference 502
- the second predetermined interval is indicated by reference 503.
- This example is immediately transferable to the graphs of figures 3-8 .
- the first predetermined time interval 502 immediately precedes the peak 501.
- the second predetermined time interval 503 immediately follows the peak 501.
- the transient connected with said peak 501 has substantially stabilised (excluding background noise).
- the dishwasher 1 detects a condition representing the fact that the average value of the first quantity in said first interval 502 differs from the average value of the first quantity in said second interval 503 by a quantity higher than a predetermined quantity, the dishwasher 1 associates said peak with the movement of the door 3. On the basis of the average value of the first quantity in the interval 503, the dishwasher 1 may further quantify the angle of opening of the door 3.
- the scope of the present invention is also a method for controlling a dishwasher 1.
- the method of controlling the dishwasher also comprises the step of detecting through the agency of said sensor 4 at least one shock applied by a user on the door 3.
- the method of control also comprises performing a command associated with the detection of at least one shock physically applied by a user on the door. With said at least one shock meaning a single shock or a specific sequence of shocks.
- the dishwasher 1 recognises a number of specific sequences of prememorized shocks, with each of which is associated a different command.
- the step of detecting through the agency of said sensor 4 the application of said at least one shock comprises the steps of measuring through the sensor 4 of the dishwasher 1 a first quantity connected with the gravity acceleration component along the first axis 40 which is integrated with the door 3.
- the step of detecting said at least one shock also comprises the step of comparing the values taken on by the first quantity with a predetermined threshold value.
- the method comprises directly or indirectly comparing the values taken on by the first quantity in a first predetermined time interval 502 immediately upstream of said peak 501 and in a second predetermined time interval 503 immediately downstream of said peak 501.
- the transient connected with said peak 501 has substantially stabilised; if the dishwasher 1 detects a condition representing the fact that the average value of the first quantity in said first interval 502 is substantially equal to the average value of the first quantity in said second interval 503, the dishwasher 1 associates said peak 501 with an instruction or with a part of an instruction given by the user. Comparing the average value of the first quantity in the first and in the second predetermined time interval 502, 503, the dishwasher 1 is able to distinguish whether the peak 501 is connected with a command of the user or with an angular variation of the door 3.
- the scope of the present invention is also a method of detecting a possible malfunction of a dishwasher presenting one or more of the characteristics indicated above.
- This method of detecting a malfunction comprises a sub-step of comparison between functioning spectrums prestored in the dishwasher 1 (and advantageously obtained following experimental tests) and at least part of a spectrum (given by the progress over time of the first quantity) detected by the sensor 4.
- the present invention enables extremely simply controlling/querying of the dishwasher 1.
- a further advantage of the present invention is providing a dishwasher 1 which may detect possible malfunctions of the dishwasher 1.
- the aforementioned advantages are obtained through use of a single sensor.
Landscapes
- Washing And Drying Of Tableware (AREA)
- Detergent Compositions (AREA)
Description
- The present invention relates to a method for controlling a dishwasher. Dishwashers comprising a contact sensor which signals opening of the dishes introduction/extraction door are well known.
- Said sensor comprises two conductor elements positioned on the door. The dishwasher comprises a striking portion which in the closed position encounters the door. This striking portion comprises a lance which when the door is closed places the two conductor elements in contact with each other. When the door is open the two conductor elements are distant from each other and this determines interruption of the passage of electrical current between them.
-
DE102010015849 discloses a dishwasher provided with a tilt sensor which detects the position of the dishwasher door; the tilt sensor is used to turn on a illumination device when door has been opened to an angle of at least 45°. - In this context, the technical task at the basis of the present invention is to propose a dishwasher enabling the components of it to be optimised, reducing its costs and overall dimensions.
- The defined technical task and the specified objects hereof are substantially achieved by a dishwasher comprising the technical aspects described in one or more of the appended claims.
- Further characteristics and advantages of the present invention will become more apparent from the following approximate, and therefore non-limiting, description of a preferred, but not exclusive, embodiment of a dishwasher, as illustrated in the appended drawings, in which:
-
figure 1 shows a schematic view of a dishwasher according to the present invention; -
figure 2 shows a component of a dishwasher according to the present invention; -
figures 3, 4, 5 show graphs relating to functioning of the dishwasher in a first operating condition; -
figures 6, 7, 8 show graphs relating to functioning of the dishwasher in a second operating condition; -
figure 9 shows an enlargement offigure 8 . - In the appended figures of the drawings, reference number 1 denotes a dishwasher comprising:
- a washing compartment 2;
- a
door 3 giving access to the washing compartment 2. - The
door 3 giving access to the washing compartment 2 enables introduction and extraction of the dishes from the washing compartment 2. Thedoor 3 comprises asensor 4 which takes a measurement representing the gravity acceleration component at least along afirst axis 40 which is integral with thedoor 3. For example, thesensor 4 measures the gravity acceleration component at least along afirst axis 40 which is integral with thedoor 3 or a value proportionate to it. This enables detection of the inclination of thedoor 3 and/or abnormal internal vibrations and/or shocks from the outside and associated with predetermined user commands. Saidsensor 4 is normally indicated in the technical sector as an accelerometer (for example, said accelerometer is the MEMS type). By way of example, but non-limiting, thesensor 4 is identified by the acronym LSM303DLHC and is supplied by ST Microelectronics. Usually thedoor 3 is substantially parallel to aplacement plane 31, saidplacement plane 31 being integral to thedoor 3. Advantageously, thefirst axis 40 is at a right angle to theplacement plane 31. In this case, the gravity acceleration component along thefirst axis 40 is minimum in absolute value (even being zero) when the door is closed in a substantially vertical position, whilst it is maximum in absolute value when thedoor 3 is open in a horizontal position. Advancement as a function of time of the gravity acceleration component along thefirst axis 40 is illustrated infigure 5 in the case of a cycle with full load without detergent and infigure 8 in the case of a cycle without load with detergent. In the cycle with full load, the machine is more silent and presents lower vibrations compared with the cycle with no load. The peaks indicated infigures 5 and8 withreferences figure 5 withreferences Figure 9 shows an enlarged view offigure 8 and shows the transient which accompanies opening of thedoor 3. The duration of the transient depends on the speed of opening of the door 3 (for example, said transient having a duration of 1.5 seconds). The difference in the signal detected in normal operation before and after the transient depends on the degree of opening of thedoor 3. Advantageously, thesensor 4 may also detect the gravity acceleration component along asecond axis 41 which is integral with thedoor 3. Typically, suchsecond axis 41 is at a right angle to the first axis 40 (advancement as a function of time of the gravity acceleration component along thesecond axis 41 is illustrated infigure 3 in the case of a cycle with full load without detergent and infigure 6 in the case of a cycle without load with detergent). For example, thesecond axis 41 is vertical when thedoor 3 is closed. In the exemplary solution illustrated in the figures, thesensor 4 is capable of detecting the gravity acceleration component along athird axis 42 which is integral with thedoor 3. Thethird axis 42 is at a right angle to the first and to thesecond axis 40, 41 (advancement as a function of time of the gravity acceleration component along thethird axis 42 is illustrated infigure 4 in the case of a cycle with full load without detergent and infigure 7 in the case of a cycle without load with detergent). The first and the second and thethird axes third axis 42 is parallel to the axis ofrotation 30.Figures 3,4,5 , therefore illustrate the signal detected by thesensor 4 in the same time interval along the three right-angled axes indicated above. It is evidenced that the signal offigure 5 is the one best usable to control opening of thedoor 3 and/or the degree of opening of thedoor 3 and/or closure of thedoor 3. The signals offigures 4 and7 being detected along a parallel axis to the axis ofrotation 30 do not, on the other hand, provide indications on the degree of opening of thedoor 3. What is indicated with reference tofigures 3,4,5 may be repeated forfigures 6,7,8 , taking into account the different type of cycle. - The
door 3, in order to pass from an open to a closed position, may rotate around its own axis ofrotation 30. Thefirst axis 40 is not parallel to said axis ofrotation 30. In fact, should thefirst axis 40 be parallel to the axis ofrotation 30 and thedoor 3 be hinged around theaxis 30, the gravity component along saidaxis 30 would be virtually constant (except for perhaps detecting vibrations at the moment when thedoor 3 comes into contact with or is disconnected from a first part of the dishwasher, said first part surrounding an opening of the washing compartment 2 and encountering thedoor 3 in a closed position). - In light of what is indicated above, the
sensor 4 is integrated indoor 3 position detection means. Every inclination of thedoor 3 relative to the horizontal position is therefore associated with a corresponding value of the gravity acceleration component along thefirst axis 40 and the sensor 6 enables determination of a parameter, typically an electrical parameter, associated with said value. - Furthermore, the
sensor 4 is integrated in a user interface which detects one or more shocks from the outside and associated with predetermined user commands. This function therefore enables a user to dialogue with the dishwasher in an extremely simplified and rapid manner, using a pre-coded code. - Furthermore, this function is particularly useful in the case of a fully integrated dishwasher. In this case, in fact, when the
door 3 is closed, a display visible from the outside is not present. This causes difficulties in dialoguing with the dishwasher 1, for example there are difficulties for the user in understanding when the washing cycle is complete. Using the present invention, on the other hand, it is possible to communicate with the dishwasher 1, even in the absence of visible buttons or switches and without the need to open thedoor 3. - Conveniently, the dishwasher 1 may also comprise acoustic means or lights (typically of modest dimensions) capable of responding to prompts of the user. In the case of the previous example, the user, by hitting the
door 3 and causing thesensor 4 to vibrate with a predetermined prompt (for example, two consecutive taps) may send a request for information to the dishwasher 1 (for example: is the washing cycle finished?). The dishwasher 1 may respond with a prerecorded voice message or a predetermined acoustic signal. - Conveniently, the
sensor 4 is integrated in abnormal vibration detection means. In fact, the vibrations are in any case picked up by thesensor 4. Thesensor 4 could therefore pick up abnormal vibrations which could signify a malfunction or warn of an imminent breakage. In this regard, in fact, the frequency of moving elements forming part of the dishwasher 1 is well known (for example, should the rotating spray arms positioned in the washing compartment come into contact with the dishes, vibrations would be produced which could be transmitted through structures of the dishwasher 1 and therefore detected by the sensor 4). In this regard, the abnormal vibration detection means comprise signalling devices capable of communicating the anomaly to a user and, in the most serious cases, could even stop functioning of the dishwasher 1. - Conveniently, the dishwasher 1 comprises means of release/retention of the
door 3 to remaining parts of the dishwasher (for example a hook). These means of release/retention of thedoor 3 compress a seal when thedoor 3 is closed; when thedoor 3 is closed, said seal remains positioned between thedoor 3 and the remaining parts of the dishwasher 1, guaranteeing the hydraulic seal. In general, the dishwasher 1 comprises means which compress the seal when thedoor 3 is closed. Further examples of means which compress the seal are elastic means integrated into a hinge which enables rotation around an axis ofrotation 30. Alternatively, said means which compress the seal are magnetic means which hold thedoor 3 in a closed position. Moving away from the axis ofrotation 30 opportunely, thedoor 3 comprises/is formed of a first and asecond portion first portion 32 being higher or equal to extension of thesecond portion 33. Thefirst portion 32 integrates the axis of rotation 30 (or at least is positioned at the axis of rotation 30). When thedoor 3 is open, thesecond portion 33 projects cantilevered from thefirst portion 32. Conveniently, thesensor 4 is integrated in thesecond portion 33 of thedoor 3. This zone of thedoor 3 is, in fact, powered electrically, since it generally houses command buttons or displays and is easily accessible even for inspection and maintenance operations. Conveniently, thesensor 4 comprises/is operatively connected to a local processor. In this way, there is no overloading of the main card of the dishwasher 1 with processing of the signal detected by thesensor 4. An already coded signal therefore leaves the local processor and is usable by other components of the dishwasher. The object of the present invention is a method of control of the position of thedoor 3 of a dishwasher 1 presenting one or more of the characteristics indicated above. - The method of control of the position of the
door 3 comprises the step of measuring through the agency of thesensor 4 of the dishwasher 1 a first quantity connected with the gravity acceleration component along the first axis which is integrated with the door 3 (see, for example,figures 5 or8 ). Conveniently, said method also comprises the step of comparing the values taken on by the first quantity with a predetermined threshold value. If the values taken on over time by the first quantity cross the predetermined threshold value to define a peak, the method comprises directly or indirectly comparing the values taken on by the first quantity in a first predetermined time interval upstream of said peak and in a second predetermined time interval downstream of said peak. For example, with reference tofigure 9 , a peak is indicated byreference 501, the first predetermined interval is indicated byreference 502 and the second predetermined interval is indicated byreference 503. This example is immediately transferable to the graphs offigures 3-8 . Conveniently, the firstpredetermined time interval 502 immediately precedes thepeak 501. Conveniently, the secondpredetermined time interval 503 immediately follows thepeak 501. In the first and in the secondpredetermined time interval peak 501 has substantially stabilised (excluding background noise). If the dishwasher 1 detects a condition representing the fact that the average value of the first quantity in saidfirst interval 502 differs from the average value of the first quantity in saidsecond interval 503 by a quantity higher than a predetermined quantity, the dishwasher 1 associates said peak with the movement of thedoor 3. On the basis of the average value of the first quantity in theinterval 503, the dishwasher 1 may further quantify the angle of opening of thedoor 3. - The scope of the present invention is also a method for controlling a dishwasher 1.
- The method of controlling the dishwasher also comprises the step of detecting through the agency of said
sensor 4 at least one shock applied by a user on thedoor 3. The method of control also comprises performing a command associated with the detection of at least one shock physically applied by a user on the door. With said at least one shock meaning a single shock or a specific sequence of shocks. - Advantageously, the dishwasher 1 recognises a number of specific sequences of prememorized shocks, with each of which is associated a different command.
- The step of detecting through the agency of said
sensor 4 the application of said at least one shock comprises the steps of measuring through thesensor 4 of the dishwasher 1 a first quantity connected with the gravity acceleration component along thefirst axis 40 which is integrated with thedoor 3. - The step of detecting said at least one shock also comprises the step of comparing the values taken on by the first quantity with a predetermined threshold value.
- If the values taken on over time by the first quantity cross the predetermined threshold value to define a
peak 501, the method comprises directly or indirectly comparing the values taken on by the first quantity in a firstpredetermined time interval 502 immediately upstream of saidpeak 501 and in a secondpredetermined time interval 503 immediately downstream of saidpeak 501. In the first and in the secondpredetermined time interval peak 501 has substantially stabilised; if the dishwasher 1 detects a condition representing the fact that the average value of the first quantity in saidfirst interval 502 is substantially equal to the average value of the first quantity in saidsecond interval 503, the dishwasher 1 associates saidpeak 501 with an instruction or with a part of an instruction given by the user. Comparing the average value of the first quantity in the first and in the secondpredetermined time interval peak 501 is connected with a command of the user or with an angular variation of thedoor 3. - The scope of the present invention is also a method of detecting a possible malfunction of a dishwasher presenting one or more of the characteristics indicated above. This method of detecting a malfunction comprises a sub-step of comparison between functioning spectrums prestored in the dishwasher 1 (and advantageously obtained following experimental tests) and at least part of a spectrum (given by the progress over time of the first quantity) detected by the
sensor 4. - The invention as conceived enables many advantages to be obtained.
- In the first place, it enables simple and intuitive checking of the position of the
door 3. In particular, it enables checking whether thedoor 3 is open or closed. Furthermore, the present invention enables extremely simply controlling/querying of the dishwasher 1. - A further advantage of the present invention is providing a dishwasher 1 which may detect possible malfunctions of the dishwasher 1. In particular, the aforementioned advantages are obtained through use of a single sensor.
Claims (1)
- A method for controlling a dishwasher (1) comprising:- a washing compartment (2);- a door (3) giving access to the washing compartment (2);
wherein the door (3) comprises a sensor (4) which takes a measurement representing the gravity acceleration component at least along a first axis (40), which is integral with the door (3), in order to detect shocks from the outside and associated with predetermined user commands,
wherein the method comprises the following steps, implemented by the dishwasher:- detecting, through the agency of the sensor (4), a shock or a sequence of shocks applied by a user on the door (3);- performing a command associated with the detection of the shock or sequence of shocks applied physically by a user on the door (3); characterized in that the step of detecting a shock or a sequence of shocks through the agency of the sensor (4) comprises the steps of:- measuring, through the agency of the sensor (4) of the dishwasher (1), a first quantity connected with the gravity acceleration component along the first axis (40);- comparing the values of the first quantity with a predetermined threshold value;
if the values taken on by the first quantity over time exceed the predetermined threshold to define a peak (501), the method comprising directly or indirectly comparing the values taken on by the first quantity in a first predetermined time interval (502) immediately upstream of the peak (501) and in a second predetermined time interval (503) immediately downstream of the peak (501), the transient connected with the peak (501) being substantially stabilized in the first and second time intervals; if the dishwasher detects a condition representing the fact that the mean value of the first quantity in the first time interval (502) is substantially equal to the mean value of the first quantity in the second time interval (503), the dishwasher (1) identifying the peak (501) as part of an instruction comprising that shock or sequence of shocks.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15157330.0A EP2918214B1 (en) | 2011-11-29 | 2012-11-14 | Dishwasher |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000080A ITRN20110080A1 (en) | 2011-11-29 | 2011-11-29 | DISHWASHER. |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15157330.0A Division EP2918214B1 (en) | 2011-11-29 | 2012-11-14 | Dishwasher |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2599424A1 EP2599424A1 (en) | 2013-06-05 |
EP2599424B1 true EP2599424B1 (en) | 2015-03-11 |
Family
ID=45370669
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20120192513 Active EP2599424B1 (en) | 2011-11-29 | 2012-11-14 | Dishwasher |
EP15157330.0A Active EP2918214B1 (en) | 2011-11-29 | 2012-11-14 | Dishwasher |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15157330.0A Active EP2918214B1 (en) | 2011-11-29 | 2012-11-14 | Dishwasher |
Country Status (2)
Country | Link |
---|---|
EP (2) | EP2599424B1 (en) |
IT (1) | ITRN20110080A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019214522A1 (en) * | 2019-09-24 | 2021-03-25 | BSH Hausgeräte GmbH | Device operation |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015036040A1 (en) | 2013-09-13 | 2015-03-19 | Electrolux Appliances Aktiebolag | Determining operational states of a dishwasher |
US9378630B2 (en) * | 2013-10-08 | 2016-06-28 | Whirlpool Corporation | Method for preventing input on an apparatus having a user interface |
WO2015125337A1 (en) | 2014-02-19 | 2015-08-27 | オリンパス株式会社 | Endoscope washer disinfector |
KR102399724B1 (en) | 2015-09-24 | 2022-05-20 | 삼성전자주식회사 | Display apparatus, Door and Refrigerator having the same |
JP7422306B2 (en) * | 2016-12-14 | 2024-01-26 | パナソニックIpマネジメント株式会社 | dishwasher |
DE102017211855A1 (en) * | 2017-07-11 | 2019-01-17 | BSH Hausgeräte GmbH | Household appliance with at least one movable door or flap |
DE102017223271A1 (en) * | 2017-07-18 | 2019-01-24 | BSH Hausgeräte GmbH | Dishwasher with one or more loading units |
DE102017213425A1 (en) * | 2017-08-02 | 2019-02-07 | BSH Hausgeräte GmbH | Sensor device for a household refrigerator |
DE102017221258A1 (en) * | 2017-11-28 | 2019-05-29 | BSH Hausgeräte GmbH | Household dishwasher and method for operating a household dishwasher |
DE102018210496A1 (en) * | 2018-06-27 | 2020-01-02 | Henkel Ag & Co. Kgaa | Monitoring a cleaning program from a dishwasher |
CN111979719A (en) * | 2019-05-06 | 2020-11-24 | 青岛海尔洗衣机有限公司 | Clothes treatment equipment and control method thereof |
KR20230011086A (en) * | 2021-07-13 | 2023-01-20 | 엘지전자 주식회사 | Dish washer |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020007677A1 (en) * | 1999-12-17 | 2002-01-24 | Coates Joann M. | Printed circuit board inclinometer/accelerometer |
WO2002060606A2 (en) * | 2000-10-23 | 2002-08-08 | James Tyson | Improved sound-based vessel cleaner inspection |
DE10256168A1 (en) * | 2002-12-02 | 2004-06-09 | BSH Bosch und Siemens Hausgeräte GmbH | dishwasher |
DE202007015532U1 (en) * | 2007-11-08 | 2009-03-26 | Hartmann Codier Gmbh | tilt sensor |
DE102008045087A1 (en) * | 2008-08-29 | 2010-03-04 | Lg Electronics Inc. | Dishwasher for use in houses, has vibration measuring unit for measuring vibration magnitude produced by draining device, and controller for controlling operation of draining device based on measured vibration magnitude |
DE102010015849C5 (en) * | 2010-03-08 | 2017-10-19 | Miele & Cie. Kg | dishwasher |
DE102010037397A1 (en) * | 2010-09-08 | 2012-03-08 | Miele & Cie. Kg | Domestic appliance, in particular handle-less dishwasher |
DE102011001168A1 (en) * | 2011-03-09 | 2012-09-13 | Miele & Cie. Kg | Method for operating a household appliance |
-
2011
- 2011-11-29 IT IT000080A patent/ITRN20110080A1/en unknown
-
2012
- 2012-11-14 EP EP20120192513 patent/EP2599424B1/en active Active
- 2012-11-14 EP EP15157330.0A patent/EP2918214B1/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019214522A1 (en) * | 2019-09-24 | 2021-03-25 | BSH Hausgeräte GmbH | Device operation |
WO2021058363A1 (en) | 2019-09-24 | 2021-04-01 | BSH Hausgeräte GmbH | Operation of appliances |
Also Published As
Publication number | Publication date |
---|---|
EP2918214A3 (en) | 2015-12-16 |
EP2918214A2 (en) | 2015-09-16 |
ITRN20110080A1 (en) | 2013-05-30 |
EP2599424A1 (en) | 2013-06-05 |
EP2918214B1 (en) | 2017-04-19 |
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