CN113668185A - Washing machine dehydration method and washing machine - Google Patents

Washing machine dehydration method and washing machine Download PDF

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Publication number
CN113668185A
CN113668185A CN202111057650.6A CN202111057650A CN113668185A CN 113668185 A CN113668185 A CN 113668185A CN 202111057650 A CN202111057650 A CN 202111057650A CN 113668185 A CN113668185 A CN 113668185A
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China
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pulse
pulse generator
numbered
washing machine
generator
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CN202111057650.6A
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CN113668185B (en
Inventor
孙波
栾强利
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Hisense Shandong Refrigerator Co Ltd
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Hisense Shandong Refrigerator Co Ltd
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Priority to CN202111057650.6A priority Critical patent/CN113668185B/en
Priority claimed from CN202111057650.6A external-priority patent/CN113668185B/en
Publication of CN113668185A publication Critical patent/CN113668185A/en
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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, obtaining the extreme time when the rotation of the inner drum of the washing machine reaches an acceleration extreme value, and obtaining the pulse time when a pulse receiver arranged on the outer drum of the washing machine receives pulse signals generated by a plurality of pulse generators arranged on the inner drum of the washing machine; calculating a plurality of time differences between the extremum time and the plurality of pulse times; determining the position relation of the load in the inner cylinder relative to the pulse generators based on the time differences; based on the position relation and the generator positions of the pulse generators relative to the inner barrel, the eccentric position of the load relative to the inner barrel is determined, so that the dehydration process is adjusted based on the eccentric position, the influence of eccentricity on the formal dehydration process can be reduced, and a better dehydration effect can be achieved.

Description

Washing machine dehydration method and washing machine
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 living standard of people, the washing machine has become an indispensable electrical appliance for each household, and the dewatering function of the washing machine is more and more emphasized by users.
The washing machine usually dehydrates the load of the washing machine by rotating the inner drum of the washing machine, but the dehydration effect is affected by eccentricity generated in the dehydration process of the washing machine.
Disclosure of Invention
An object of the present application is to solve the problem that the eccentricity of a washing machine in the prior art affects the dehydration effect.
In order to solve the above problems, the present application provides a dehydration method of a washing machine, the method including: in the dehydration process of the washing machine, obtaining the extreme time when the rotation of the inner drum of the washing machine reaches an acceleration extreme value, and obtaining the pulse time when a pulse receiver arranged on the outer drum of the washing machine receives pulse signals generated by a plurality of pulse generators arranged on the inner drum 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 a 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 drum based on the positional relationship and generator positions of the plurality of pulse generators relative to the inner drum 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 body comprises a shell, an outer barrel arranged in the shell and an inner barrel arranged in the outer barrel and used for containing a load, wherein the inner barrel rotates in the outer barrel, the outer barrel is provided with an acceleration sensor and a pulse receiver, the outer wall of the inner barrel is provided with a plurality of pulse generators, and the pulse receiver is used for receiving signals of the 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 drum, is electrically connected with the pulse receiver to receive a pulse signal generated by the pulse generator and received by the pulse receiver, and is used for acquiring the time of the extreme value of the acceleration of the rotation of the inner drum of the washing machine during the dehydration process of the washing machine and acquiring the pulse time of the pulse signal generated by the pulse generator arranged on the inner drum of the washing machine received by the pulse receiver arranged on the outer drum of the washing machine based on the acceleration signal and the pulse signal; calculating a plurality of time differences between the extremum time and the plurality of pulse times; determining a positional relationship of a 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 drum based on the positional relationship and generator positions of the plurality of pulse generators relative to the inner drum to adjust the dewatering process based on the eccentric position.
In one embodiment of the present application, based on the foregoing solution, the washing machine controller is configured to: obtaining a minimum time difference of the plurality of time differences; and if the acceleration extreme value is an acceleration maximum value and the minimum time difference is 0, determining that the position relationship is the coincidence of the load and the pulse generator corresponding to the minimum time difference.
In one embodiment of the present application, based on the foregoing solution, the washing machine controller is configured to: if the acceleration extreme value is an acceleration maximum value and the minimum time difference is not 0, acquiring a second small time difference in the plurality of time differences; calculating the sum of the minimum time difference and the second small time difference as a time interval, and acquiring 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 overlapped 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 is overlapped with the pulse generator corresponding to the second small time difference.
In one embodiment of the present application, based on the foregoing solution, the washing machine controller is configured to: and if the acceleration extreme value is an acceleration maximum value, 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 solution, the washing machine controller is configured to: if the position relationship is that the load is superposed with the pulse generator corresponding to the minimum time difference, taking the generator position of the pulse generator corresponding to the minimum time difference 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 small time difference, setting 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 small time difference as the eccentric position.
In an 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, and the pulse receiver and the plurality of pulse generators are on the same cross section of the inner drum, based on the foregoing solution, the washing machine controller is configured to: numbering the pulse generators in sequence, and acquiring a maximum value M in the numbering; if the eccentric position is at the position of the generator, the maximum value M is an even number, and the number N of the generator where the eccentric position is located is less than or equal to M/2, carrying out eccentric compensation on an 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 > M/2 where the eccentric position is located, the eccentricity compensation is performed on the area between the pulse generator number (N + M/2)% M-1 and the pulse generator number (N + M/2)% M.
In one embodiment of the present application, based on the foregoing solution, 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 number N of the generator where the eccentric position is located is less than M/2, carrying out eccentric compensation on an area between the pulse generator with the number [ N + M/2] and the pulse generator with the number [ N + M/2+1 ]; if the generator number N > M/2 at which the eccentric position is located, the eccentricity compensation is performed for the region between the pulse generator number (N + M/2)% M and the pulse generator number (N + M/2)% M + 1.
In an embodiment of the present application, based on the foregoing solution, 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 the washing machine controller is configured to: numbering the pulse generators in sequence, and acquiring a maximum value M in the numbering; 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 an even number, and N1 is smaller than or equal to N2 and smaller than or equal to M/2, carrying out eccentricity compensation on a region 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 numbered N1 and the pulse generator numbered N2, and the maximum value M is an even number, and M/2< N1< N2, then the region between the pulse generator numbered N1-M/2 and the pulse generator numbered N2-M/2 is eccentrically compensated; if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and the maximum value M is an even number, and M/2 is N1< N2, then the region between the pulse generator numbered N1+ M/2 and the pulse generator numbered N2-M/2 is eccentrically compensated; if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and the maximum value M is an even number, and M is N1 and N2 is 1, the eccentricity compensation is performed for the region between the pulse generator numbered N1-M/2 and the pulse generator numbered N2+ M/2.
In one embodiment of the present application, based on the foregoing solution, the washing machine controller is configured to: 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 eccentrically compensated; 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 M < [ N1+ M/2], [ 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 ]% M is eccentrically compensated; 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 ≦ M, and M < [ N1+ M/2], M < [ N2+ M/2+1], then the region between the pulse generator numbered [ N1+ M/2 ]% M and the pulse generator numbered [ N2+ M/2+1 ]% M is eccentrically compensated; if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and M is an odd number, N1 is equal to M, and N2 is equal to 1, the eccentricity compensation is performed on the region between the pulse generator numbered [ N1-M/2-1] and the pulse generator numbered [ N2+ M/2+1 ].
According to the technical scheme, the method has at least the following advantages and positive effects:
the dewatering method of the washing machine, which is provided by the application, comprises the steps of acquiring the time of an extreme value when the rotation of an inner drum of the washing machine reaches an acceleration extreme value in the dewatering process of the washing machine, and acquiring the pulse time when a pulse receiver arranged on an outer drum of the washing machine receives pulse signals generated by a plurality of pulse generators arranged on the inner drum of the washing machine; calculating a plurality of time differences between the extremum time and the plurality of pulse times; determining the position relation of the load in the inner cylinder relative to the pulse generators based on the time differences; based on the position relation and the generator positions of the pulse generators relative to the inner barrel, the eccentric position of the load relative to the inner barrel is determined, so that the dehydration process is adjusted based on the eccentric position, the influence of eccentricity on the formal dehydration process can be reduced, and a better dehydration effect can be achieved.
Drawings
Fig. 1 schematically illustrates a structural view of a washing machine according to an embodiment of the present application;
FIG. 2 schematically illustrates a flow chart of a washing machine dehydration method according to one embodiment of the present application;
FIG. 3 schematically illustrates a washing machine partition diagram according to an embodiment of the present application;
FIG. 4 schematically illustrates an acceleration versus pulse signal diagram according to an embodiment of the present application;
FIG. 5 schematically illustrates a flow chart of a method for eccentric positioning of a washing machine according to an embodiment of the present application;
fig. 6 schematically shows a flowchart of a washing machine eccentricity determination method 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 is to be understood that the present application is capable of various modifications in various embodiments without departing from the scope of the application, and that the description and drawings are to be taken as illustrative and not restrictive in character.
In one embodiment of the application, a washing machine is provided, which comprises a washing machine body, a shell, an outer barrel and an inner barrel, wherein the outer barrel is arranged in the shell, the inner barrel is arranged in the outer barrel and used for accommodating a load, the inner barrel rotates in the outer barrel, an acceleration sensor and a pulse receiver are arranged on the outer barrel, a plurality of pulse generators are arranged on the outer wall of the inner barrel, and the pulse receiver is used for receiving signals of the pulse generators; and 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 barrel, is electrically connected with the pulse receiver to receive a pulse signal received by the pulse receiver and generated by the pulse generator, and is used for executing the washing machine dehydration method based on the acceleration signal and the pulse signal.
In an embodiment of the present application, there is provided a washing machine as shown in fig. 1, where fig. 1 schematically shows a structural schematic diagram of the washing machine according to an embodiment of the present application, a load in the washing machine may be the laundry in fig. 1, as shown in fig. 1, the number of the pulse receivers may be one, the 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, so that the pulse receiver can receive the pulse signal sent by the pulse generator opposite to the pulse receiver. In one embodiment of the present application, the pulse receiver may be a magnetic inductor, the pulse generator may be a magnet, and the acceleration sensor may be a three-dimensional (3-dimensional, 3D) acceleration sensor.
With continued reference to fig. 1, the 3D acceleration sensor, the magnetic inductor, and the magnet may constitute eccentric position locating devices, each of which may include: one 3D acceleration sensor, one magnetic inductor and eight magnets. The 3D acceleration sensor can be arranged on the outer side of the outer barrel and used for detecting acceleration information in real time; the magnetic inductor is arranged on the inner side of the outer cylinder, is matched with 8 magnets arranged on the outer side of the inner cylinder and is used for generating pulse signals.
In an embodiment of the application, the 3D acceleration sensor can be installed directly above the outer cylinder through a screw, the magnetic sensor can be a hall sensor, the sensor is screwed into a mounting hole reserved directly above the outer cylinder through a screw thread, and the outer cylinder is guaranteed to be sealed without water leakage through a sealant or a rubber pad and the like, the magnetic sensor probe points to the inner cylinder side, and the magnetic sensor signal line is arranged outside the outer cylinder and connected to a washing machine controller to provide pulse data. The eight permanent magnets can be installed on the outer side of the inner cylinder through glue or in threaded fit, the installation positions of the permanent magnets are consistent with those of the magnetic inductor in the axial direction, the permanent magnets are uniformly distributed in the circumferential direction, and the interval between every two permanent magnets is 45 degrees.
In one embodiment of the present application, if the axial position of the inner cylinder is parallel to the ground, the position of the pulse receiver may be set at the position where the outer cylinder is farthest or closest to the ground, so as to avoid the influence of gravity on the eccentricity detection as much as possible. In other embodiments of the present application, the number of the pulse receivers may be multiple, multiple pulse receivers may correspond to multiple pulse transmitters one to one, and a pulse signal transmitted by one pulse transmitter may be received by only one pulse receiver.
In an embodiment of the present application, a washing machine dehydration method is provided, as shown in fig. 2, fig. 2 schematically shows a washing machine dehydration method flowchart according to an embodiment of the present application, and an execution subject of the washing machine dehydration method may be a washing machine or a washing machine controller.
Referring to fig. 2, the dehydration method of the washing machine at least includes steps S210 to S240, which are described in detail as follows:
in step S210, during the dewatering process of the washing machine, the time of the extreme value of the acceleration of the rotation of the inner drum of the washing machine is obtained, and the pulse time of the pulse signal generated by the plurality of pulse generators arranged on the inner drum of the washing machine received by the pulse receiver arranged on the outer drum of the washing machine is obtained.
In an embodiment of the application, the rotating speed of the inner barrel can be collected through the acceleration sensor, and when the acceleration is detected to reach an acceleration extreme value, time corresponding to the acceleration is obtained and used as extreme value time.
In an embodiment of the present application, after the pulse signal is detected, the acceleration of the rotation speed of the inner drum may be collected by the acceleration sensor, and the extreme time may be calculated from the time when the pulse signal is detected for the first time after the washing machine is started this time. The acceleration extremes may include an acceleration maximum and an acceleration minimum.
In one embodiment of the application, when the pulse generator on the inner cylinder rotates along with the inner cylinder to the position of the pulse receiver on the outer cylinder, the pulse receiver can receive a pulse signal sent by the pulse generator.
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 also be calculated.
In step S230, the positional relationship of the load in the inner tube with respect to the plurality of pulse generators is determined based on the plurality of time differences.
In one embodiment of the present application, a minimum time difference of a plurality of time differences may be obtained; and if the acceleration extreme value is the acceleration maximum value and the minimum time difference is 0, determining that the position relation is that the load is overlapped with the pulse generator corresponding to the minimum time difference.
In an embodiment of the present application, if the acceleration extreme value is the acceleration maximum value 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 acquiring 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 overlapped 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 is overlapped with the pulse generator corresponding to the second small time difference.
In an embodiment of the present application, if the acceleration extreme value is the acceleration maximum value, 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, it is determined that 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.
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 preset comparison table of the time interval and the set ratio, or may be determined according to the ratio between the time interval T and the set time length T, and may be the set ratio P ═ T/T × S, where S may be a constant set according to experience.
In one embodiment of the present application, if the acceleration extreme value is the acceleration minimum value and the minimum time difference is 0, the position relationship is determined such that the load is opposite to the pulse generator corresponding to the minimum time difference.
In an embodiment of the present application, if the acceleration extreme value is the acceleration minimum value 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 acquiring 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; 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 is opposite to the pulse generator corresponding to the second small time difference.
In one embodiment of the present application, if the acceleration extreme value is the acceleration minimum value, 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, it is determined that the load position is opposite to the pulse generator corresponding to the minimum time difference and the pulse generator corresponding to the second minimum time difference.
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 dewatering 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 minimum 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 minimum time difference is defined as the eccentric position.
In one embodiment of the present application, the eccentricity compensation may be performed at a position opposite to the eccentricity position in the inner tub, and the washing machine after the eccentricity compensation may be continuously dehydrated to adjust the dehydration process.
In one embodiment of the present application, the pulse generators may be numbered in sequence, and a maximum value M in the numbers is obtained; if the eccentric position is at the position of the generator, the maximum value M is an even number, and the number N of the generator where the eccentric position is located is less than or equal to M/2, carrying out 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 > M/2 where the eccentric position is located, the eccentricity compensation is performed on the region between the pulse generator number (N + M/2)% M-1 and the pulse generator number (N + M/2)% M, wherein% is the remainder symbol.
In one embodiment of the present application, if the eccentric position is at the generator position, and the maximum value M is an odd number, and the number N of the generator at which the eccentric position is located is less than M/2, the eccentricity compensation may be performed on the region between the pulse generator numbered [ N + M/2] and the pulse generator numbered [ N + M/2+1 ]; if the generator number N > M/2 where the eccentric position is located, the eccentricity compensation is performed on the area between the pulse generator number of (N + M/2)% M and the pulse generator number of (N + M/2)% M +1, wherein [ ] is an integer sign.
In one embodiment of the present application, the eccentricity compensation may be performed on the region between the pulse generator numbered N1+ M/2 and the pulse generator numbered N2+ M/2 if the eccentricity position is between the pulse generator numbered N1 and the pulse generator numbered N2, and the maximum value M is an even number, and N1< N2 ≦ M/2; if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and the maximum value M is an even number, and M/2< N1< N2, then the eccentricity compensation is performed on the region between the pulse generator numbered N1-M/2 and the pulse generator numbered N2-M/2; if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and the maximum value M is an even number, and M/2 is N1< N2, then the eccentricity compensation is performed on the region between the pulse generator numbered N1+ M/2 and the pulse generator numbered N2-M/2; if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and the maximum value M is an even number, and M is N1, and N2 is 1, the eccentricity compensation is performed for the region between the pulse generator numbered N1-M/2 and the pulse generator numbered N2+ M/2.
In one embodiment of the present application, it may be that 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 ≦ M, and [ N1+ M/2] ≦ M, [ N2+ M/2+1] ≦ M, then the region between the pulse generator numbered [ N1+ M/2] and the pulse generator numbered [ N2+ M/2+1] is eccentrically compensated; 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 < M, and M < [ N1+ M/2], [ N2+ M/2+1] ≦ M, then the region between the pulse generator numbered [ N1+ M/2] and the pulse generator numbered [ N2+ M/2+1 ]% M is eccentrically compensated; 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 ≦ M, and M < [ N1+ M/2], M < [ N2+ M/2+1], then the region between the pulse generator numbered [ N1+ M/2 ]% M and the pulse generator numbered [ N2+ M/2+1 ]% M is eccentrically compensated; if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and M is an odd number, N1 is equal to M, and N2 is equal to 1, the eccentricity compensation is performed on the region 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 of the extreme value when the rotation of the inner drum of the washing machine reaches the acceleration extreme value is obtained, and the pulse time when the pulse receiver arranged on the outer drum of the washing machine receives the pulse signals generated by the plurality of 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 the position relation of the load in the inner cylinder relative to the pulse generators based on the time differences; based on the position relation and the generator positions of the pulse generators relative to the inner barrel, the eccentric position of the load relative to the inner barrel is determined, so that the dehydration process is adjusted based on the eccentric position, the influence of eccentricity on the formal dehydration process can be reduced, and a better dehydration effect can be achieved.
In the embodiment, the eccentric position can be accurately calculated when the inner barrel of the washing machine is accelerated and the inner barrel runs at a high speed; the secondary calculation is not needed through parameters such as rotating speed, time and the like, so that 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 manner in fig. 1 as an example, the inner drum of the washing machine may be partitioned, fig. 3 schematically illustrates a partition diagram of the washing machine according to an embodiment of the present application, and as shown in fig. 3, the drum is divided into 8 regions in the circumferential direction according to the distribution of the magnets. The region between the number 1 and number 2 magnets is region 1, the region between the number 2 and number 3 magnets is region 2, and so on, and the region between the number 8 and the next cycle of number 1 magnets is region 8. The 3D acceleration sensor and the magnetic inductor are connected to a 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 simultaneously, and the sequence relation of the acceleration signals and the pulse signals in a time sequence is obtained, as shown in fig. 4, 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 inductor starts to acquire pulse signals, no matter the inner cylinder is at any position, the first magnet generating the pulse signals is numbered 1, the second magnet is numbered 2, and the like; when the eighth pulse signal (one rotation period) is acquired, the number is reset to zero, and the number is distributed again from the number 1.
In an embodiment of the present application, a washing machine eccentricity positioning method is provided, and as shown in fig. 5, fig. 5 schematically shows a flowchart of the washing machine eccentricity positioning method according to an embodiment of the present application, an execution subject of the washing machine eccentricity positioning method may be a washing machine or a washing machine controller.
Referring to fig. 5, the dehydration method of 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 in cycles, and the 3D acceleration sensor starts to collect acceleration signals.
In one embodiment of the present application, the magnetic induction device may start to collect pulses at any time and start cycle counting; the acceleration sensor can start to acquire the acceleration signal at the same time. In order to avoid the moment when the acceleration signal starts to be acquired, the eccentricity is just under the magnetic inductor, so that the acceleration peak value is not accurately acquired, and the eccentricity position is determined by using the acceleration signals detected in two cycles if necessary.
In step S520, whether a half-period phase difference exists between Amax and Amin acquisition time in one period is judged, and if the half-period phase difference exists between Amax and Amin acquisition time, the first period data can be used for judging the eccentric position; and if the Amax and the Amin are half-period phase difference, judging the eccentric position by using the acceleration signals acquired in the first and second periods.
In one embodiment of the present application, the acceleration maximum value signal Amax and the acceleration minimum value signal Amin may be taken during the first rotation period.
In step S530, when the maximum acceleration signal generation timing overlaps with any one of the pulse signal generation timings, it is determined that the eccentricity is in a certain sensor.
In step S540, when the maximum acceleration signal generation time does not overlap all the pulse signal generation times, it can be preliminarily determined that the eccentric position is in the Y-number region.
In step S550, (TAmax-TY)/(TY + 1-TY) is calculated to obtain a calculation result, wherein if the time difference between the occurrence time of the maximum acceleration TAmax and the occurrence time of the pulse Y is less than 25%, it is determined that the eccentricity is at the sensor Y; if (TAmax-TY)/(TY + 1-TY) > 75%, determining that the eccentricity is at the sensor number Y + 1; in both cases, the eccentricity can be determined to be in a certain divided region.
In one embodiment of the present application, the washing machine in fig. 3 may be located using the washing machine eccentricity locating method in fig. 5, if there is an acceleration maximum between pulse signals No. 5 and 6, it may be determined that the area where the eccentricity is located is area No. 5, and 25% may be a set ratio corresponding to the area between magnet No. 5 and magnet No. 6.
In an embodiment of the present application, a method for compensating eccentricity of a washing machine is provided, and as shown in fig. 6, fig. 6 schematically shows a flowchart of the method for compensating eccentricity of a washing machine according to an embodiment of the present application, an execution subject 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 the washing machine may refer to fig. 1.
Referring to fig. 6, first, an eccentricity determination result is obtained, and the eccentricity determination result may include an eccentricity position; judging the eccentricity judgment result, if the eccentricity is judged to fall on the M number area, and if M <5, compensating the M +4 number area; if M is more than or equal to 5, the M-4 area is compensated. The mapping relation between the eccentric area M and the eccentric compensation area N is as follows: if M <5, then N is M +4, if M ≧ 5, then N is M-4. For example, when the determination of the eccentric position is made as the area 5, the eccentricity compensation is performed in the area 1. When 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, carrying out eccentricity compensation on the U +3 area and the U +4 area simultaneously; if U is 5, compensating the region No. 8 and the region No. 1; if U is more than 5, carrying out eccentricity compensation on the region of No. (U + 3)% 8 and No. (U + 4)% 8, wherein the% is the remainder; the mapping relation between the eccentric position U and the eccentric compensation area V, W is as follows: if U <5, then V equals U +3 and W equals U + 4; if U is 5, V is 8, and W is 1; if U is greater than 5, V ═ 8 (U + 3)% and W ═ 8 (U + 4)% are determined.
While the present application has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present application may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also 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 meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A dehydration method of a washing machine, characterized in that it comprises:
in the dehydration process of the washing machine, obtaining the extreme time when the rotation of the inner drum of the washing machine reaches an acceleration extreme value, and obtaining the pulse time when a pulse receiver arranged on the outer drum of the washing machine receives pulse signals generated by a plurality of pulse generators arranged on the inner drum 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 a 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 drum based on the positional relationship and generator positions of the plurality of pulse generators relative to the inner drum to adjust the dewatering process based on the eccentric position.
2. The dewatering method of a washing machine as claimed in claim 1, wherein said determining a positional relationship of a load in the drum relative to the plurality of pulse generators based on the time difference comprises:
obtaining a minimum time difference of the plurality of time differences;
and if the acceleration extreme value is an acceleration maximum value and the minimum time difference is 0, determining that the position relationship is the coincidence of the load and the pulse generator corresponding to the minimum time difference.
3. The dehydrating method of a washing machine as claimed in claim 2, wherein if the acceleration extreme value is an acceleration maximum value and the minimum time difference is not 0, obtaining a second small 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 acquiring 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 overlapped 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 is overlapped with the pulse generator corresponding to the second small time difference.
4. The dewatering method of claim 3, wherein if the acceleration extreme value is an acceleration maximum value, 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 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.
5. The method of claim 4, wherein determining the eccentric position of the load relative to the drum based on the positional relationship and the generator position of the pulse generator relative to the drum comprises:
if the position relationship is that the load is superposed with the pulse generator corresponding to the minimum time difference, taking the generator position of the pulse generator corresponding to the minimum time difference 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 small time difference, setting 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 small time difference as the eccentric position.
6. The dewatering method of claim 1, wherein the plurality of pulse generators are evenly distributed on the inner tub, the pulse receiver is disposed on the outer tub, the pulse receiver is on the same cross section of the inner tub as the plurality of pulse generators, and the adjusting the dewatering process based on the eccentric position comprises:
numbering the pulse generators in sequence, and acquiring a maximum value M in the numbering;
if the eccentric position is at the position of the generator, the maximum value M is an even number, and the number N of the generator where the eccentric position is located is less than or equal to M/2, carrying out eccentric compensation on an 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 > M/2 where the eccentric position is located, the eccentricity compensation is performed on the area between the pulse generator number (N + M/2)% M-1 and the pulse generator number (N + M/2)% M.
7. The dehydrating method of a washing machine according to claim 6, wherein if the eccentric position is at the generator position, and the maximum value M is an odd number, and the number N < M/2 of the generator at which the eccentric position is located, the eccentricity compensation is performed for the region between the pulse generator numbered [ N + M/2] and the pulse generator numbered [ N + M/2+1 ];
if the generator number N > M/2 at which the eccentric position is located, the eccentricity compensation is performed for the region between the pulse generator number (N + M/2)% M and the pulse generator number (N + M/2)% M + 1.
8. The dewatering method of claim 1, wherein the plurality of pulse generators are evenly distributed on the inner tub, the pulse receiver is disposed on the outer tub, the pulse receiver is on the same cross section of the inner tub as the plurality of pulse generators, and the adjusting the dewatering process based on the eccentric position comprises:
numbering the pulse generators in sequence, and acquiring a maximum value M in the numbering;
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 an even number, and N1 is smaller than or equal to N2 and smaller than or equal to M/2, carrying out eccentricity compensation on a region 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 numbered N1 and the pulse generator numbered N2, and the maximum value M is an even number, and M/2< N1< N2, then the region between the pulse generator numbered N1-M/2 and the pulse generator numbered N2-M/2 is eccentrically compensated;
if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and the maximum value M is an even number, and M/2 is N1< N2, then the region between the pulse generator numbered N1+ M/2 and the pulse generator numbered N2-M/2 is eccentrically compensated;
if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and the maximum value M is an even number, and M is N1 and N2 is 1, the eccentricity compensation is performed for the region between the pulse generator numbered N1-M/2 and the pulse generator numbered N2+ M/2.
9. The dewatering method of a washing machine as claimed in claim 8, wherein if the eccentric position is between the pulser numbered N1 and the pulser numbered N2, and M is an odd number, N1< N2 ≦ M, and [ N1+ M/2] ≦ M, [ N2+ M/2+1] ≦ M, the region between the pulser numbered [ N1+ M/2] and the pulser numbered [ N2+ M/2+1] is eccentrically compensated;
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 M < [ N1+ M/2], [ 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 ]% M is eccentrically compensated;
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 ≦ M, and M < [ N1+ M/2], M < [ N2+ M/2+1], then the region between the pulse generator numbered [ N1+ M/2 ]% M and the pulse generator numbered [ N2+ M/2+1 ]% M is eccentrically compensated;
if the eccentric position is between the pulse generator numbered N1 and the pulse generator numbered N2, and M is an odd number, N1 is equal to M, and N2 is equal to 1, the eccentricity compensation is performed on the region between the pulse generator numbered [ N1-M/2-1] and the pulse generator numbered [ N2+ M/2+1 ].
10. A washing machine, characterized by comprising:
the washing machine body comprises a shell, an outer barrel arranged in the shell and an inner barrel arranged in the outer barrel and used for containing a load, wherein the inner barrel rotates in the outer barrel, the outer barrel is provided with an acceleration sensor and a pulse receiver, the outer wall of the inner barrel is provided with a plurality of pulse generators, and the pulse receiver is used for receiving signals of the pulse generators;
a washing machine controller disposed in the housing, electrically connected to the acceleration sensor to obtain an acceleration signal generated by rotation of the inner drum, and electrically connected to the pulse receiver to receive a pulse signal generated by the pulse generator, wherein the washing machine controller is configured to perform the method according to any one of claims 1 to 9 based on the acceleration signal and the pulse signal.
CN202111057650.6A 2021-09-09 Washing machine dehydration method and washing machine Active CN113668185B (en)

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JP2001293289A (en) * 2000-04-13 2001-10-23 Sanyo Electric Co Ltd Washing machine
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WO2018121596A1 (en) * 2016-12-27 2018-07-05 青岛海尔洗衣机有限公司 Washing machine
US20180282934A1 (en) * 2014-11-28 2018-10-04 Samsung Electronics Co., Ltd. Dryer and method for controlling same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0889696A (en) * 1994-09-28 1996-04-09 Matsushita Electric Ind Co Ltd Clothes dryer
JPH11244593A (en) * 1998-03-06 1999-09-14 Sanyo Electric Co Ltd Drum type centrifugal dehydrating device
JP2001293289A (en) * 2000-04-13 2001-10-23 Sanyo Electric Co Ltd Washing machine
JP2008154314A (en) * 2006-12-14 2008-07-03 Sharp Corp Motor driving apparatus and washing machine equipped with same
US20120131753A1 (en) * 2010-11-29 2012-05-31 General Electric Company System and method for detecting imbalance in a washing machine
CN103255600A (en) * 2012-02-17 2013-08-21 苏州三星电子有限公司 Eccentricity sensing method of roller washing machine
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