CN113668185B - Washing machine dehydration method and washing machine - Google Patents
Washing machine dehydration method and washing machine Download PDFInfo
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- CN113668185B CN113668185B CN202111057650.6A CN202111057650A CN113668185B CN 113668185 B CN113668185 B CN 113668185B CN 202111057650 A CN202111057650 A CN 202111057650A CN 113668185 B CN113668185 B CN 113668185B
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- 238000005406 washing Methods 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 53
- 230000018044 dehydration Effects 0.000 title claims abstract description 23
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 23
- 230000001133 acceleration Effects 0.000 claims abstract description 81
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000715 Mucilage Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- FQZYTYWMLGAPFJ-OQKDUQJOSA-N tamoxifen citrate Chemical compound [H+].[H+].[H+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.C=1C=CC=CC=1C(/CC)=C(C=1C=CC(OCCN(C)C)=CC=1)/C1=CC=CC=C1 FQZYTYWMLGAPFJ-OQKDUQJOSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/04—Signal transfer or data transmission arrangements
-
- 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
- D06F34/06—Timing arrangements
-
- 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/20—Parameters relating to constructional components, e.g. door sensors
-
- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Abstract
The application provides a washing machine dehydration method and a washing machine, wherein the method comprises the following steps: in the dehydration process of the washing machine, acquiring extremum time for the rotation of the inner barrel of the washing machine to reach an acceleration extremum, and acquiring pulse time for a pulse receiver arranged on the outer barrel of the washing machine to receive pulse signals generated by a plurality of pulse generators arranged on the inner barrel of the washing machine; calculating a plurality of time differences between the extremum time and the plurality of pulse times; determining a positional relationship of the load in the inner barrel relative to the plurality of pulse generators based on the plurality of time differences; based on the position relation and the generator positions of the pulse generators relative to the inner cylinder, the eccentric position of the load relative to the inner cylinder is determined, so that the influence of the eccentricity on the formal dehydration process can be reduced based on the eccentric position, and a better dehydration effect can be achieved.
Description
Technical Field
The application relates to the field of electrical equipment, in particular to a washing machine dehydration method and a washing machine.
Background
With the gradual improvement of the living standard of people, the washing machine becomes an indispensable electrical appliance for each household, and the dewatering function of the washing machine is also more and more valued by users.
Washing machines typically spin water from a washing machine load by rotating the drum of the washing machine, but during the spin-drying process of the washing machine, eccentricity is typically created, which affects the spin-drying effect.
Disclosure of Invention
An object of the present application is to solve the problem that the eccentricity of the washing machine in the prior art affects the dehydrating effect.
In order to solve the above problems, the present application provides a dehydration method of a washing machine, the method comprising: in the dehydration process of the washing machine, acquiring extremum time for the rotation of the inner barrel of the washing machine to reach an acceleration extremum, and acquiring pulse time for a pulse receiver arranged on the outer barrel of the washing machine to receive pulse signals generated by a plurality of pulse generators arranged on the inner barrel of the washing machine; calculating a plurality of time differences between the extremum time and the plurality of pulse times; determining a positional relationship of the load in the inner barrel relative to the plurality of pulse generators based on the plurality of time differences; determining an eccentric position of the load relative to the inner barrel based on the positional relationship and generator positions of the plurality of pulse generators relative to the inner barrel to adjust the dewatering process based on the eccentric position.
In another aspect of the present application, there is provided a washing machine including: the washing machine comprises a washing machine body, a washing machine body and a control device, wherein the washing machine body comprises a shell, an outer cylinder arranged in the shell, and an inner cylinder arranged in the outer cylinder and used for accommodating a load, the inner cylinder rotates in the outer cylinder, an acceleration sensor and a pulse receiver are arranged on the outer cylinder, a plurality of pulse generators are arranged on the outer wall of the inner cylinder, and the pulse receiver is used for receiving signals of the plurality of pulse generators; the washing machine controller is arranged in the shell, is electrically connected with the acceleration sensor to acquire an acceleration signal generated by the rotation of the inner cylinder, is electrically connected with the pulse receiver to receive a pulse signal generated by the pulse generator received by the pulse receiver, and is used for acquiring the extremum time of the rotation of the inner cylinder of the washing machine reaching the acceleration extremum in the dehydration process of the washing machine based on the acceleration signal and the pulse signal, and acquiring the pulse time of the pulse signal generated by a plurality of pulse generators arranged on the inner cylinder of the washing machine received by the pulse receiver arranged on the outer cylinder of the washing machine; calculating a plurality of time differences between the extremum time and the plurality of pulse times; determining a positional relationship of the load in the inner barrel relative to the plurality of pulse generators based on the plurality of time differences; determining an eccentric position of the load relative to the inner barrel based on the positional relationship and generator positions of the plurality of pulse generators relative to the inner barrel to adjust the dewatering process based on the eccentric position.
In one embodiment of the present application, based on the foregoing, the washing machine controller is configured to: acquiring a minimum time difference of the plurality of time differences; and if the acceleration extreme value is the acceleration maximum value and the minimum time difference is 0, determining that the position relationship is that the load coincides with the pulse generator corresponding to the minimum time difference.
In one embodiment of the present application, based on the foregoing, the washing machine controller is configured to: if the acceleration extremum is an acceleration maximum and the minimum time difference is not 0, acquiring a second small time difference in the time differences; calculating the sum of the minimum time difference and the second small time difference as a time interval, and obtaining a set ratio corresponding to the time interval; if the ratio of the minimum time difference to the time interval is lower than the set ratio corresponding to the time interval, determining that the load coincides with the pulse generator corresponding to the minimum time difference; and if the ratio of the second small time difference to the time interval is lower than the set ratio corresponding to the time interval, determining that the load coincides with the pulse generator corresponding to the second small time difference.
In one embodiment of the present application, based on the foregoing, the washing machine controller is configured to: and if the acceleration extremum is the acceleration extremum, the ratio of the minimum time difference to the time interval reaches the set ratio corresponding to the time interval, and the ratio of the second small time difference to the time interval reaches the set ratio corresponding to the time interval, determining that the load position is between the pulse generator corresponding to the minimum time difference and the pulse generator corresponding to the second small time difference.
In one embodiment of the present application, based on the foregoing, the washing machine controller is configured to: if the position relation is that the load is overlapped with the pulse generator corresponding to the minimum time difference, the generator position of the pulse generator corresponding to the minimum time difference is used as the eccentric position; and if the load position is between the pulse generator corresponding to the minimum time difference and the pulse generator corresponding to the second minimum time difference, taking a region between the generator position of the pulse generator corresponding to the minimum time difference and the generator position of the pulse generator corresponding to the second minimum time difference as the eccentric position.
In one embodiment of the present application, the plurality of pulse generators are uniformly distributed on the inner drum, the pulse receiver is disposed on the outer drum, the pulse receiver and the plurality of pulse generators are on the same cross section of the inner drum, and based on the foregoing scheme, the washing machine controller is configured to: numbering the pulse generators in sequence, and obtaining the maximum value M in the numbering; if the eccentric position is at the generator position and the maximum value M is even, and the generator number N where the eccentric position is located is less than or equal to M/2, performing eccentric compensation on the area between the pulse generator with the number of N+M/2-1 and the pulse generator with the number of N+M/2; if the generator number N of the eccentric position is greater than M/2, the region between the pulse generator number (N+M/2)% M-1 and the pulse generator number (N+M/2)% M is subjected to eccentric compensation.
In one embodiment of the present application, based on the foregoing, the washing machine controller is configured to: if the eccentric position is at the generator position, the maximum value M is an odd number, and the generator number N of the eccentric position is less than M/2, the region between the pulse generator with the number of [ N+M/2] and the pulse generator with the number of [ N+M/2+1] is subjected to eccentric compensation; if the generator number N of the eccentric position is greater than M/2, the region between the pulse generator number (N+M/2)% M and the pulse generator number (N+M/2)% M+1 is subjected to eccentric compensation.
In one embodiment of the present application, based on the foregoing, the plurality of pulse generators are uniformly distributed on the inner tub, the pulse receiver is disposed on the outer tub, the pulse receiver and the plurality of pulse generators are on a same cross section of the inner tub, and the washing machine controller is configured to: numbering the pulse generators in sequence, and obtaining the maximum value M in the numbering; if the eccentric position is between the pulse generator with the number N1 and the pulse generator with the number N2, the maximum value M is even, N1 is less than N2 and less than or equal to M/2, the region between the pulse generator with the number N1+M/2 and the pulse generator with the number N2+M/2 is subjected to eccentric compensation; if the eccentric position is between the pulse generator with the number of N1 and the pulse generator with the number of N2, the maximum value M is even, M/2< N1< N2, and the region between the pulse generator with the number of N1-M/2 and the pulse generator with the number of N2-M/2 is subjected to eccentric compensation; if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, the maximum value M is even, and M/2=N1 < N2, the region between the pulse generator numbered N1+M/2 and the pulse generator numbered N2-M/2 is subjected to eccentric compensation; if the eccentricity is between the number N1 and the number N2 pulse generators, and the maximum value M is even, and m=n1, and n2=1, the eccentricity compensation is performed on the area between the number N1-M/2 pulse generators and the number n2+m/2 pulse generators.
In one embodiment of the present application, based on the foregoing, the washing machine controller is configured to: if the eccentric position is between the pulse generator with the number of N1 and the pulse generator with the number of N2, M is an odd number, N1 is less than or equal to N2 and less than or equal to M, N1 is less than or equal to M, N2 is less than or equal to M/2, and N1 is less than or equal to M/2, the eccentric compensation is carried out on the area between the pulse generator with the number of N1 and the pulse generator with the number of N2 is less than or equal to M/2; if the eccentric position is between the pulse generator with the number of N1 and the pulse generator with the number of N2, M is an odd number, N1 is less than or equal to N2 and M < [ N1+ M/2], [ N2+ M/2+1] < M, the region between the pulse generator with the number of [ N1+ M/2] and the pulse generator with the number of [ N2+ M/2+1]% M is subjected to eccentric compensation; if the eccentric position is between the pulse generator with the number of N1 and the pulse generator with the number of N2, M is an odd number, N1< N2 is less than or equal to M, M < [ N1+ M/2], M < [ N2+ M/2+1], and the eccentricity compensation is carried out on the area between the pulse generator with the number of [ N1+ M/2]%M and the pulse generator with the number of [ N2+ M/2+1 ]%M; if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, M is an odd number, N1=M, N2=1, and the region between the pulse generator numbered [ N1-M/2-1] and the pulse generator numbered [ N2+M/2+1] is subjected to eccentric compensation.
According to the technical scheme, the application has at least the following advantages and positive effects:
The application provides a washing machine dehydration method, which is characterized in that in the dehydration process of a washing machine, the extremum time of the rotation of an inner barrel of the washing machine reaching the extremum of acceleration is obtained, and the pulse time of a pulse receiver arranged on an outer barrel of the washing machine for receiving pulse signals generated by a plurality of pulse generators arranged on the inner barrel of the washing machine is obtained; calculating a plurality of time differences between the extremum time and the plurality of pulse times; determining a positional relationship of the load in the inner barrel relative to the plurality of pulse generators based on the plurality of time differences; based on the position relation and the generator positions of the pulse generators relative to the inner cylinder, the eccentric position of the load relative to the inner cylinder is determined, so that the influence of the eccentricity on the formal dehydration process can be reduced based on the eccentric position, and a better dehydration effect can be achieved.
Drawings
Fig. 1 schematically illustrates a structural diagram of a washing machine according to an embodiment of the present application;
fig. 2 schematically illustrates a flow chart of a dehydration method of a washing machine according to an embodiment of the present application;
FIG. 3 schematically illustrates a schematic view of a washing machine partition according to one embodiment of the present application;
FIG. 4 schematically illustrates acceleration versus pulse signal according to one embodiment of the application;
fig. 5 schematically illustrates a flowchart of a method of positioning eccentricity of a washing machine according to an embodiment of the present application;
Fig. 6 schematically illustrates a flowchart of a method of eccentricity determination of a washing machine according to an embodiment of the present application.
Detailed Description
Exemplary embodiments that embody features and advantages of the present application will be described in detail in the following description. It will be understood that the application is capable of various modifications in various embodiments, all without departing from the scope of the application, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the application.
In one embodiment of the application, a washing machine is provided, comprising a washing machine body, comprising a shell, an outer cylinder arranged in the shell, and an inner cylinder arranged in the outer cylinder and used for accommodating a load, wherein the inner cylinder rotates in the outer cylinder, an acceleration sensor and a pulse receiver are arranged on the outer cylinder, a plurality of pulse generators are arranged on the outer wall of the inner cylinder, and the pulse receiver is used for receiving signals of the plurality of pulse generators; the washing machine controller is arranged in the shell, is electrically connected with the acceleration sensor to acquire an acceleration signal generated by the rotation of the inner cylinder, is electrically connected with the pulse receiver to receive a pulse signal generated by the pulse generator received by the pulse receiver, and is used for executing the washing machine dehydration method based on the acceleration signal and the pulse signal.
In one embodiment of the present application, a washing machine is provided, as shown in fig. 1, fig. 1 schematically shows a structure of the washing machine according to one embodiment of the present application, a load in the washing machine may be laundry in fig. 1, as shown in fig. 1, the number of pulse receivers may be one, a plurality of pulse generators may be uniformly distributed on the inner drum, and the pulse receivers and the plurality of pulse generators are on the same cross section of the inner drum, so that when the inner drum rotates, each pulse generator rotates to a position opposite to the pulse receiver, thereby enabling the pulse receiver to receive a pulse signal transmitted from the pulse generator opposite thereto. In one embodiment of the application, the pulse receiver may be a magnetic sensor, the pulse generator may be a magnet, and the acceleration sensor may be a three-dimensional (3 d) acceleration sensor.
With continued reference to fig. 1, the 3d acceleration sensor, the magnetic sensor, and the magnet may constitute eccentric position locating devices, each of which may include: a 3D acceleration sensor, a magnetic sensor and eight magnets. The 3D acceleration sensor can be arranged outside the outer cylinder and used for detecting acceleration information in real time; the magnetic inductor is arranged on the inner side of the outer cylinder and matched with 8 magnets arranged on the outer side of the inner cylinder for generating pulse signals.
In one embodiment of the application, the 3D acceleration sensor can be arranged right above the outer cylinder through screws, the magnetic sensor can be a Hall sensor, the sensor is screwed into a mounting hole reserved right above the outer cylinder through threads, the outer cylinder is sealed and watertight through sealant or rubber pads and the like, the magnetic sensor probe points to the inner cylinder side, and the magnetic sensor signal wire is arranged outside the outer cylinder and connected with a washing machine controller to provide pulse data. Eight permanent magnets can be installed in the inner tube outside through mucilage binding or screw-thread fit, and permanent magnet mounted position is unanimous with the magnetic inductor in axial direction, and the permanent magnet is in circumference direction equipartition distribution, every interval 45.
In one embodiment of the application, if the axial position of the inner barrel is parallel to the ground, the position of the pulse receiver can be set at the position of the outer barrel farthest or nearest to the ground so as to avoid the influence of gravity on the eccentric detection as much as possible. In other embodiments of the present application, the number of pulse receivers may be plural, the plural pulse receivers may correspond one by one to the plural pulse transmitters, and the pulse signal transmitted by one pulse transmitter may be received by only one pulse receiver.
In one embodiment of the present application, a washing machine dehydrating method is provided, as shown in fig. 2, fig. 2 schematically shows a flow chart of the washing machine dehydrating method according to one embodiment of the present application, and an execution subject of the washing machine dehydrating method may be a washing machine or a washing machine controller.
Referring to fig. 2, the method for dehydrating the washing machine at least includes steps S210 to S240, which are described in detail as follows:
In step S210, during the dehydration process of the washing machine, the extremum time for the rotation of the inner drum of the washing machine to reach the extremum of the acceleration is obtained, and the pulse time for the pulse receiver provided on the outer drum of the washing machine to receive the pulse signals generated by the pulse generators provided on the inner drum of the washing machine is obtained.
In one embodiment of the application, the rotational speed of the inner cylinder can be acquired through the acceleration sensor, and when the acceleration is detected to reach an acceleration extreme value, the time corresponding to the acceleration is acquired and taken as the extreme value time.
In one embodiment of the application, the acceleration sensor can be used for collecting the acceleration of the rotating speed of the inner cylinder after the pulse signal is detected, and the extremum time can be calculated from the time of detecting the pulse signal for the first time after the washing machine is started. The acceleration extremum may include an acceleration maximum and an acceleration minimum.
In one embodiment of the application, the pulse receiver is capable of receiving a pulse signal transmitted by the pulse generator as the pulse generator on the inner barrel rotates with the inner barrel to the position of the pulse receiver on the outer barrel.
In step S220, a plurality of time differences between the extremum time and the plurality of pulse times are calculated.
In one embodiment of the present application, there may be a plurality of extremum times, and for each extremum time, a time difference of a pulse time closest to the extremum time may be calculated, and a time difference of a pulse time adjacent to the extremum time may be calculated.
In step S230, based on the plurality of time differences, the positional relationship of the load in the inner cylinder with respect to the plurality of pulse generators is determined.
In one embodiment of the application, the smallest time difference of the plurality of time differences may be obtained; if the acceleration extreme value is the acceleration maximum value and the minimum time difference is 0, determining the position relationship as the coincidence of the load and the pulse generator corresponding to the minimum time difference.
In one embodiment of the present application, if the acceleration extremum is the acceleration extremum and the minimum time difference is not 0, a second small time difference of the plurality of time differences may be obtained; calculating the sum of the minimum time difference and the second minimum time difference as a time interval, and obtaining a set ratio corresponding to the time interval; if the ratio of the minimum time difference to the time interval is lower than the set ratio corresponding to the time interval, determining that the load coincides with the pulse generator corresponding to the minimum time difference; if the ratio of the second small time difference to the time interval is lower than the set ratio corresponding to the time interval, determining that the load coincides with the pulse generator corresponding to the second small time difference.
In one embodiment of the present application, if the acceleration extremum is the acceleration extremum, and the ratio of the minimum time difference to the time interval reaches the set ratio corresponding to the time interval, and the ratio of the second minimum time difference to the time interval reaches the set ratio corresponding to the time interval, the load position is determined to be between the pulse generator corresponding to the minimum time difference and the pulse generator corresponding to the second minimum time difference.
In an embodiment of the present application, the correspondence between the time interval and the set ratio may be set according to the length of the time interval, may be a comparison table of the preset time interval and the set ratio, may be determined according to the ratio of the time interval T to the set time length T, and may be a set ratio p=t/t×s, where S may be a constant set empirically.
In one embodiment of the present application, if the acceleration extremum is an acceleration minimum and the minimum time difference is 0, the positional relationship is determined to be the load opposite the pulse generator corresponding to the minimum time difference.
In one embodiment of the present application, if the acceleration extremum is an acceleration minimum and the minimum time difference is not 0, a second small time difference of the plurality of time differences may be obtained; calculating the sum of the minimum time difference and the second minimum time difference as a time interval, and obtaining a set ratio corresponding to the time interval; if the ratio of the minimum time difference to the time interval is lower than the set ratio corresponding to the time interval, determining that the load is opposite to the pulse generator corresponding to the minimum time difference; if the ratio of the second small time difference to the time interval is lower than the set ratio corresponding to the time interval, determining that the load is opposite to the pulse generator corresponding to the second small time difference.
In one embodiment of the present application, if the acceleration extremum is an acceleration minimum, and the ratio of the minimum time difference to the time interval reaches a set ratio corresponding to the time interval, and the ratio of the second minimum time difference to the time interval reaches a set ratio corresponding to the time interval, the opposite of the load position between the pulse generator corresponding to the minimum time difference and the pulse generator corresponding to the second minimum time difference is determined.
With continued reference to FIG. 2, in step S240, an eccentric position of the load relative to the inner drum is determined based on the positional relationship and the generator positions of the plurality of pulse generators relative to the inner drum to adjust the dehydration process based on the eccentric position.
In one embodiment of the present application, if the position relationship is that the load coincides with the pulse generator corresponding to the minimum time difference, the generator position of the pulse generator corresponding to the minimum time difference is taken as the eccentric position; if the load position is between the pulse generator corresponding to the minimum time difference and the pulse generator corresponding to the second small time difference, the region between the generator position of the pulse generator corresponding to the minimum time difference and the generator position of the pulse generator corresponding to the second small time difference is taken as the eccentric position.
In one embodiment of the application, the eccentric compensation can be performed on the position, which is opposite to the eccentric position, in the inner cylinder, and the washing machine after the eccentric compensation is continuously dehydrated so as to adjust the dehydration process.
In one embodiment of the present application, the pulse generators may be numbered sequentially and the maximum value M in the number is obtained; if the eccentric position is at the generator position and the maximum value M is even, and the generator number N where the eccentric position is less than or equal to M/2, performing eccentric compensation on the area between the pulse generator with the number N+M/2-1 and the pulse generator with the number N+M/2; if the generator number N of the eccentric position is greater than M/2, the eccentric compensation is carried out on the area between the pulse generator number (N+M/2)% M-1 and the pulse generator number (N+M/2)% M, wherein,% is the remainder taking sign.
In one embodiment of the present application, if the eccentric position is at the generator position, the maximum value M is odd, and the generator number N where the eccentric position is N < M/2, the region between the pulse generator numbered [ n+m/2] and the pulse generator numbered [ n+m/2+1] is subjected to eccentricity compensation; if the generator number N of the eccentric position is greater than M/2, the region between the pulse generator number (N+M/2)% M and the pulse generator number (N+M/2)% M+1 is subjected to eccentric compensation, wherein [ (] is an integer symbol.
In one embodiment of the present application, if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and the maximum value M is even, and N1< N2 is less than or equal to M/2, the region between the pulse generator numbered n1+m/2 and the pulse generator numbered n2+m/2 is subjected to the eccentricity compensation; if the eccentric position is between the pulse generator with the number of N1 and the pulse generator with the number of N2, the maximum value M is even, M/2 is less than N1 and less than N2, the eccentric compensation is carried out on the area between the pulse generator with the number of N1-M/2 and the pulse generator with the number of N2-M/2; if the eccentric position is between the pulse generator with the number of N1 and the pulse generator with the number of N2, the maximum value M is even, M/2=N1 < N2, and the eccentricity compensation is carried out on the area between the pulse generator with the number of N1 plus M/2 and the pulse generator with the number of N2-M/2; if the eccentricity is between the N1 and N2 numbered pulse generators, and the maximum value M is even, and m=n1, and n2=1, the eccentricity compensation is performed on the area between the N1-M/2 numbered pulse generators and the n2+m/2 numbered pulse generators.
In one embodiment of the present application, if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and M is an odd number, N1< N2.ltoreq.M, and [ N1+M/2 ]. Ltoreq.M, [ N2+M/2+1 ]. Ltoreq.M, the region between the pulse generator numbered [ N1+M/2] and the pulse generator numbered [ N2+M/2+1] is subjected to the eccentricity compensation; if the eccentric position is between the pulse generator with the number of N1 and the pulse generator with the number of N2, M is an odd number, N1 is less than or equal to N2 and M is less than or equal to [ N1+M/2], [ N2+M/2+1] < M, the region between the pulse generator with the number of [ N1+M/2] and the pulse generator with the number of [ N2+M/2+1]% M is subjected to eccentric compensation; if the eccentric position is between the pulse generator with the number of N1 and the pulse generator with the number of N2, M is an odd number, N1< N2 is less than or equal to M, M < [ N1+ M/2], M < [ N2+ M/2+1], the eccentric compensation is carried out on the area between the pulse generator with the number of [ N1+ M/2]% M and the pulse generator with the number of [ N2+ M/2+1]% M; if the eccentricity is between the pulse generator numbered N1 and the pulse generator numbered N2, and M is an odd number, n1=m, n2=1, the eccentricity compensation is performed on the area between the pulse generator numbered [ N1-M/2-1] and the pulse generator numbered [ n2+m/2+1 ].
In the embodiment of fig. 2, the time when the rotation of the inner drum of the washing machine reaches the acceleration limit is obtained during the dehydration process of the washing machine, and the pulse time when the pulse receiver arranged on the outer drum of the washing machine receives the pulse signals generated by the pulse generators arranged on the inner drum of the washing machine is obtained; calculating a plurality of time differences between the extremum time and the plurality of pulse times; determining a positional relationship of the load in the inner barrel relative to the plurality of pulse generators based on the plurality of time differences; based on the position relation and the generator positions of the pulse generators relative to the inner cylinder, the eccentric position of the load relative to the inner cylinder is determined, so that the influence of the eccentricity on the formal dehydration process can be reduced based on the eccentric position, and a better dehydration effect can be achieved.
In the embodiment, the eccentric position can be accurately calculated when the inner cylinder of the washing machine accelerates and runs at high speed; the secondary calculation is not needed through parameters such as rotation speed, time and the like, errors caused by the secondary calculation are avoided, and real-time and accurate position information can be provided for actively compensating eccentricity.
In an embodiment of the present application, taking the installation mode in fig. 1 as an example, an inner drum of the washing machine may be partitioned, fig. 3 schematically illustrates a schematic diagram of the partitioning of the washing machine according to an embodiment of the present application, and as illustrated in fig. 3, the drum is divided into 8 regions in a circumferential direction according to a magnet distribution. The area between magnets numbered 1 and 2 is area 1, the area between magnets numbered 2 and 3 is area 2, and so on, the area between magnets numbered 8 and 1 of the next cycle is area 8. The 3D acceleration sensor and the magnetic sensor are connected to the washing machine controller through signal lines, the washing machine controller collects and processes acceleration signals and pulse signals, the acceleration signals and the pulse signals can be collected at the same time, and the time sequence relation between the acceleration signals and the pulse signals is obtained, as shown in fig. 4, and fig. 4 schematically shows a schematic diagram of the relation between the acceleration and the pulse signals according to one embodiment of the application; at any moment, the magnetic sensor starts to collect pulse signals, no matter the inner cylinder is positioned at any position, the first magnet generating the pulse signals is given a number 1, the second magnet is 2, and the like; when the eighth pulse signal (one rotation period) is acquired, the number is zeroed, and the number is reassigned from the number 1.
In one embodiment of the present application, a washing machine eccentric positioning method is provided, as shown in fig. 5, fig. 5 schematically shows a flowchart of a washing machine eccentric positioning method according to one embodiment of the present application, and an execution subject of the washing machine eccentric positioning method may be a washing machine or a washing machine controller.
Referring to fig. 5, the method for dehydrating the washing machine at least includes steps S510 to S550, which are described in detail as follows:
In step S510, the magnetic sensor starts to collect pulses and counts circularly, and the 3D acceleration sensor starts to collect acceleration signals.
In one embodiment of the application, the magnetic induction device can start to collect pulses at any moment and start cycle counting; the acceleration sensor may simultaneously start to acquire acceleration signals. In order to avoid the moment when the acquisition of the acceleration signal is started, the eccentricity is just under the magnetic sensor, so that the acquisition of the acceleration peak value is inaccurate, and the eccentric position is determined by using the acceleration signals detected in two periods if necessary.
In step S520, it is determined whether there is a phase difference of half a period between Amax and Amin in a period, and if there is a phase difference of half a period between Amax and Amin in a period, the eccentric position can be determined by using the first period data; if Amax and Amin are in phase difference of half period at the acquisition time, the acceleration signals acquired in the first period and the second period are used for judging the eccentric position.
In one embodiment of the present application, the acceleration maximum signal Amax and the acceleration minimum signal Amin may be taken during the first rotation period.
In step S530, when the maximum acceleration signal generation time overlaps with any of the pulse signal generation times, it is determined that the eccentricity is at a certain sensor.
In step S540, when the maximum acceleration signal generation timing does not overlap with all the pulse signal generation timings, it may be preliminarily determined that the eccentric position is in the Y-number region.
In step S550, calculating (TAmax-TY)/(ty+1-TY) to obtain a calculation result, wherein if the time difference between the maximum acceleration occurrence time TAmax and the occurrence time of the Y pulse is less than 25%, it is determined that the eccentricity is at the Y sensor; if (TAmax-TY)/(TY+1-TY) >75%, then determine that the eccentricity is at sensor Y+1; in other than the above two cases, it can be determined that the eccentricity is in a certain divided area.
In one embodiment of the present application, the washing machine eccentric positioning method in fig. 5 may be used to position the washing machine in fig. 3, and if there is a maximum acceleration value between the pulse signals No. 5 and No. 6, it may be determined that the area where the eccentricity is located is No. 5 area, and 25% may be a set ratio corresponding to the area between the magnets No. 5 and No. 6.
In one embodiment of the present application, a method for compensating eccentricity of a washing machine is provided, as shown in fig. 6, fig. 6 schematically shows a flowchart of a method for compensating eccentricity of a washing machine according to one embodiment of the present application, an execution body of the method for compensating eccentricity of a washing machine may be a washing machine or a washing machine controller, and a structural diagram of a washing machine may refer to fig. 1.
Referring to fig. 6, an eccentricity determination result is first obtained, and the eccentricity determination result may include an eccentricity position; judging the eccentric judgment result, if the eccentric judgment result is on the M number area, compensating the M+4 number area if M < 5; if M is more than or equal to 5, the area M-4 is compensated. The mapping relation between the region M where the eccentricity is located and the eccentricity compensation region N is as follows: if M <5, n=m+4, if m+.5, n=m-4. For example, if the eccentric position is determined to be the area 5, the eccentricity compensation is performed in the area 1. If the eccentric position is determined to be the area 1, the eccentricity compensation is performed in the area 5. If the eccentricity is judged to fall on the U-shaped sensor, if U is less than 5, the eccentricity compensation is carried out on the U+3-shaped area and the U+4-shaped area simultaneously; if u=5, compensating for regions No. 8 and No. 1; if U > 5, performing eccentricity compensation on the (U+3)% 8 and (U+4)% 8 regions, wherein,% is the remainder; the mapping relation between the position U where the eccentricity is located and the eccentricity compensation area V, W is: if U <5, v=u+ 3,W =u+4; if u=5, v= 8,W =1; if U is greater than 5, v= (u+3)% 8,W = (u+4)% 8.
While the application has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present application may be embodied in several forms without departing from the spirit or essential attributes thereof, it should be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalences of such metes and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. A method of dehydrating a washing machine, the method comprising:
in the dehydration process of the washing machine, acquiring extremum time for the rotation of the inner barrel of the washing machine to reach an acceleration extremum, and acquiring pulse time for a pulse receiver arranged on the outer barrel of the washing machine to receive pulse signals generated by a plurality of pulse generators arranged on the inner barrel of the washing machine; the pulse generators are uniformly distributed on the inner cylinder, and when the pulse generators on the inner cylinder rotate to the positions of the pulse receivers on the outer cylinder along with the inner cylinder, the pulse receivers can receive pulse signals sent by the pulse generators;
calculating a plurality of time differences between the extremum time and the plurality of pulse times;
Determining a positional relationship of the load in the inner barrel relative to the plurality of pulse generators based on the plurality of time differences; when the acceleration extreme value is an acceleration minimum value and the minimum time difference in the plurality of time differences is 0, determining that the load in the inner cylinder is opposite to a pulse generator corresponding to the minimum time difference;
Determining an eccentric position of the load relative to the inner barrel based on the positional relationship and generator positions of the plurality of pulse generators relative to the inner barrel to adjust the dewatering process based on the eccentric position.
2. The method of dehydrating a washing machine as claimed in claim 1, wherein the determining a positional relationship of the load in the inner tub with respect to the plurality of pulse generators based on the time difference comprises:
acquiring a minimum time difference of the plurality of time differences;
and if the acceleration extreme value is the acceleration maximum value and the minimum time difference is 0, determining that the position relationship is that the load coincides with the pulse generator corresponding to the minimum time difference.
3. The method of claim 2, wherein if the acceleration extremum is an acceleration maximum and the minimum time difference is not 0, obtaining a second minimum time difference of the plurality of time differences;
Calculating the sum of the minimum time difference and the second small time difference as a time interval, and obtaining a set ratio corresponding to the time interval;
If the ratio of the minimum time difference to the time interval is lower than the set ratio corresponding to the time interval, determining that the load coincides with the pulse generator corresponding to the minimum time difference;
and if the ratio of the second small time difference to the time interval is lower than the set ratio corresponding to the time interval, determining that the load coincides with the pulse generator corresponding to the second small time difference.
4. A method of dehydrating a washing machine as claimed in claim 3, wherein if the acceleration extremum is an acceleration extremum, and the minimum time difference to time interval ratio reaches a set ratio corresponding to the time interval, and the second small time difference to time interval ratio reaches a set ratio corresponding to the time interval, the load position is determined to be between the pulse generator corresponding to the minimum time difference and the pulse generator corresponding to the second small time difference.
5. The method of dehydrating a washing machine as claimed in claim 4, wherein the determining an eccentric position of the load with respect to the inner tub based on the positional relationship and generator positions of the plurality of pulse generators with respect to the inner tub comprises:
If the position relation is that the load is overlapped with the pulse generator corresponding to the minimum time difference, the generator position of the pulse generator corresponding to the minimum time difference is used as the eccentric position;
And if the load position is between the pulse generator corresponding to the minimum time difference and the pulse generator corresponding to the second minimum time difference, taking a region between the generator position of the pulse generator corresponding to the minimum time difference and the generator position of the pulse generator corresponding to the second minimum time difference as the eccentric position.
6. The method of dehydrating a washing machine as claimed in claim 1, wherein the pulse receiver is provided on the outer tub, the pulse receiver and the plurality of pulse generators are on the same cross section of the inner tub, the adjusting the dehydrating process based on the eccentric position comprises:
numbering the pulse generators in sequence, and obtaining the maximum value M in the numbering;
If the eccentric position is at the generator position and the maximum value M is even, and the generator number N where the eccentric position is located is less than or equal to M/2, performing eccentric compensation on the area between the pulse generator with the number of N+M/2-1 and the pulse generator with the number of N+M/2;
If the generator number N of the eccentric position is more than M/2, performing eccentric compensation on the area between the pulse generator with the number of (N+M/2)% M-1 and the pulse generator with the number of (N+M/2)% M; wherein,% is the remainder symbol.
7. The method of dehydrating a washing machine as claimed in claim 6, wherein if the eccentric position is at the generator position and the maximum value M is an odd number and the generator number N < M/2 where the eccentric position is located, the region between the pulse generator numbered [ n+m/2] and the pulse generator numbered [ n+m/2+1] is eccentrically compensated; wherein [ (] is an integer symbol).
8. The method of dehydrating a washing machine as claimed in claim 1, wherein the plurality of pulse generators are uniformly distributed on the inner tub, the pulse receiver is provided on the outer tub, the pulse receiver and the plurality of pulse generators are on the same cross section of the inner tub, the adjusting the dehydrating process based on the eccentric position comprises:
numbering the pulse generators in sequence, and obtaining the maximum value M in the numbering;
If the eccentric position is between the pulse generator with the number N1 and the pulse generator with the number N2, the maximum value M is even, N1 is less than N2 and less than or equal to M/2, the region between the pulse generator with the number N1+M/2 and the pulse generator with the number N2+M/2 is subjected to eccentric compensation;
If the eccentric position is between the pulse generator with the number of N1 and the pulse generator with the number of N2, the maximum value M is even, M/2< N1< N2, and the region between the pulse generator with the number of N1-M/2 and the pulse generator with the number of N2-M/2 is subjected to eccentric compensation;
If the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, the maximum value M is even, and M/2=N1 < N2, the region between the pulse generator numbered N1+M/2 and the pulse generator numbered N2-M/2 is subjected to eccentric compensation;
If the eccentricity is between the number N1 and the number N2 pulse generators, and the maximum value M is even, and m=n1, and n2=1, the eccentricity compensation is performed on the area between the number N1-M/2 pulse generators and the number n2+m/2 pulse generators.
9. The method of dehydrating a washing machine as claimed in claim 8, wherein if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and M is an odd number, N1< N2 is less than or equal to M, and [ n1+m/2] < M, [ n2+m/2+1] < M, the region between the pulse generator numbered [ n1+m/2] and the pulse generator numbered [ n2+m/2+1] is eccentrically compensated; wherein [ (] is an integer symbol);
If the eccentric position is between the pulse generator with the number of N1 and the pulse generator with the number of N2, M is an odd number, N1< N2 is less than or equal to M, M < [ N1+ M/2], M < [ N2+ M/2+1], and the eccentricity compensation is carried out on the area between the pulse generator with the number of [ N1+ M/2]%M and the pulse generator with the number of [ N2+ M/2+1 ]%M; wherein,% is the remainder symbol;
If the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, M is an odd number, N1=M, N2=1, and the region between the pulse generator numbered [ N1-M/2-1] and the pulse generator numbered [ N2+M/2+1] is subjected to eccentric compensation.
10. A washing machine, comprising:
The washing machine body comprises a shell, an outer cylinder arranged in the shell, and an inner cylinder arranged in the outer cylinder and used for accommodating a load, wherein the inner cylinder rotates in the outer cylinder, an acceleration sensor and a pulse receiver are arranged on the outer cylinder, a plurality of uniformly distributed pulse generators are arranged on the outer wall of the inner cylinder, and when the pulse generators on the inner cylinder rotate to the positions of the pulse receivers on the outer cylinder along with the inner cylinder, the pulse receivers can receive pulse signals sent by the pulse generators;
a washing machine controller disposed in the housing and electrically connected to the acceleration sensor to obtain an acceleration signal generated by rotation of the inner cylinder, and electrically connected to the pulse receiver to receive a pulse signal generated by the pulse generator received by the pulse receiver, the washing machine controller being configured to perform the method of any one of claims 1-9 based on the acceleration signal and the pulse signal.
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| JPH11244593A (en) * | 1998-03-06 | 1999-09-14 | Sanyo Electric Co Ltd | Drum type centrifugal dehydrating device |
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