CN111501288A - Washing machine and weighing method and weighing device thereof - Google Patents
Washing machine and weighing method and weighing device thereof Download PDFInfo
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- CN111501288A CN111501288A CN201910035839.1A CN201910035839A CN111501288A CN 111501288 A CN111501288 A CN 111501288A CN 201910035839 A CN201910035839 A CN 201910035839A CN 111501288 A CN111501288 A CN 111501288A
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Abstract
The invention discloses a washing machine and a weighing method and a weighing device thereof, wherein the method comprises the following steps: after the weighing signal is received, controlling the rotating speed of a motor of the washing machine to gradually increase to a first rotating speed, and operating at the first rotating speed for a first preset time so as to enable the washing machine to enter a constant speed stage; acquiring a first number of accumulated rotations of a motor and first electric energy consumed by the motor in a constant speed stage; controlling the motor to run to a second rotating speed in an accelerating mode within a second time so as to enable the washing machine to enter an accelerating stage; acquiring a second number of accumulated rotation turns of the motor and second electric energy consumed by the motor in the acceleration stage; acquiring a weighing coefficient according to the second electric energy; and determining the weight of the load according to the first turn, the first electric energy, the weighing coefficient, the second turn and the second electric energy. According to the method, the weighing coefficient is determined again according to the electric energy consumed by the motor in the motor acceleration stage, the data error caused by fitting by adopting the same curve is avoided, and the weighing precision is improved.
Description
Technical Field
The present invention relates to the field of washing machine technology, and in particular, to a weighing method of a washing machine, a weighing apparatus of a washing machine, and a non-transitory computer-readable storage medium.
Background
At present, the weighing function of a washing machine generally obtains data such as power in a constant speed stage and power in an acceleration stage, and adopts a fixed weighing coefficient to perform data fitting, so as to obtain the weight of a load in a barrel.
However, for a large-capacity washing machine, if the load is large, the power changes in a non-linear manner in the acceleration stage, which results in that the power consumed in the acceleration stage is larger than that consumed in the small load, and if the same weighing coefficient is continuously used for data fitting, the calculated load has a large weight error, which may cause problems of tub collision, starting failure, failure in reaching the maximum rotation speed, etc. during the dehydration of the washing machine, thereby affecting the washing effect of the washing machine.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a weighing method for a washing machine, which re-determines a weighing coefficient according to electric energy consumed by a motor during an acceleration stage of the motor, thereby avoiding data errors caused by fitting with the same curve and improving weighing accuracy.
A second object of the present invention is to provide a weighing device for a washing machine.
A third object of the present invention is to provide a washing machine.
A fourth object of the invention is to propose a non-transitory computer-readable storage medium.
In order to achieve the above object, an embodiment of an aspect of the present invention provides a weighing method for a washing machine, including the following steps: after a weighing signal is received, controlling the rotating speed of a motor of the washing machine to gradually increase to a first rotating speed, and operating at the first rotating speed for a first preset time so as to enable the washing machine to enter a constant speed stage; acquiring a first number of accumulated rotations of the motor and first electric energy consumed by the motor in the constant speed stage; controlling the motor to run at a second speed in an accelerated mode within a second time so as to enable the washing machine to enter an acceleration stage; acquiring a second number of accumulated rotations of the motor and second electric energy consumed by the motor in an acceleration stage; acquiring a weighing coefficient according to the second electric energy; determining the weight of the load according to the first number of turns, the first electric energy, the weighing coefficient, the second number of turns and the second electric energy
According to the weighing method of the washing machine, after a weighing signal is received, the rotating speed of the motor of the washing machine is controlled to be gradually increased to a first rotating speed, the washing machine is operated at the first rotating speed for a first preset time at a constant speed, then the first number of turns of the motor in the constant speed stage and first electric energy consumed by the motor are acquired, the motor is controlled to be accelerated to a second rotating speed within a second time, the washing machine is enabled to enter an acceleration stage, then the second number of turns of the motor in the acceleration stage and second electric energy consumed by the motor are acquired, and finally, a weighing coefficient is acquired according to the second electric energy; and determining the weight of the load according to the first turn, the first electric energy, the weighing coefficient, the second turn and the second electric energy. According to the method, the weighing coefficient is determined again according to the electric energy consumed by the motor in the motor acceleration stage, the data error caused by fitting by adopting the same curve is avoided, and the weighing precision is improved.
In addition, the weighing method of the washing machine according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the weighing method of the washing machine further includes: obtaining a weighing coefficient according to the second electric energy, including: judging whether the second electric energy is larger than preset electric energy or not; the second electric energy is less than or equal to the preset electric energy, and the first weighing coefficient is taken as the weighing coefficient; and the second electric energy is larger than the preset electric energy, and a second weighing coefficient is used as a weighing coefficient.
According to an embodiment of the present invention, the weighing method of the washing machine further includes: acquiring a torque fluctuation average value of the acceleration stage; and determining the weight of the load according to the first number of turns, the first electric energy, the weighing coefficient, the second number of turns, the second electric energy and the torque fluctuation average value.
According to one embodiment of the invention, the washing machine is a drum washing machine
In order to achieve the above object, a second aspect of the present invention provides a weighing device for a washing machine, including: the control module is used for controlling the rotating speed of a motor of the washing machine to gradually increase to a first rotating speed and operating at the first rotating speed for a first preset time so as to enable the washing machine to enter a constant speed stage; the first acquisition module is used for acquiring a first number of accumulated rotations of the motor and first electric energy consumed by the motor in the constant speed stage; the control module is also used for controlling the motor to run to a second rotating speed in an accelerating mode within a second time so as to enable the washing machine to enter an accelerating stage; the second acquisition module is used for acquiring a second number of turns of accumulated rotation of the motor in the acceleration stage and second electric energy consumed by the motor, and acquiring a weighing coefficient according to the second electric energy; and the calculating module is used for determining the weight of the load according to the first turn number, the first electric energy, the weighing coefficient, the second turn number and the second electric energy.
According to the weighing device of the washing machine, the rotating speed of the motor of the washing machine is controlled by the control module to gradually increase to the first rotating speed, the motor of the washing machine is operated at the first rotating speed for the first preset time at a constant speed, so that the washing machine enters a constant speed stage, then the first acquisition module acquires the first number of turns of the motor in the constant speed stage and the first electric energy consumed by the motor, then the control module controls the motor to accelerate to the second rotating speed within the second time, so that the washing machine enters an acceleration stage, the second acquisition module acquires the second number of turns of the motor in the acceleration stage and the second electric energy consumed by the motor, acquires the weighing coefficient according to the second electric energy, and finally the calculation module determines the weight of the load according to the first number of turns, the first electric energy, the weighing coefficient, the second number of turns and the second electric energy. Therefore, the device re-determines the weighing coefficient according to the electric energy consumed by the motor in the motor acceleration stage, avoids data errors caused by fitting by adopting the same curve, and improves the weighing precision.
In addition, the weighing device of the washing machine according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the second obtaining module is further configured to: and judging whether the second electric energy is larger than preset electric energy or not, wherein the second electric energy is smaller than or equal to the preset electric energy, a first weighing coefficient is used as a weighing coefficient, the second electric energy is larger than the preset electric energy, and the second weighing coefficient is used as a weighing coefficient.
According to an embodiment of the present invention, the weighing apparatus of the washing machine further includes: a third obtaining module, configured to obtain a torque fluctuation average value of the acceleration stage; the calculation module is further configured to determine a weight of the load based on the first number of turns, the first electrical energy, the weighing factor, the second number of turns, the second electrical energy, and the torque ripple average.
According to one embodiment of the invention, the washing machine is a drum washing machine.
In order to achieve the above object, a third aspect of the present invention provides a washing machine including the weighing apparatus of the washing machine according to the second aspect of the present invention.
According to the washing machine provided by the embodiment of the invention, the weighing coefficient is determined again according to the electric energy consumed by the motor in the motor acceleration stage through the weighing device, so that the data error caused by fitting by adopting the same curve is avoided, and the weighing precision is improved.
To achieve the above object, a third aspect of the present invention provides a non-transitory computer-readable storage medium having a computer program stored thereon, the computer program being executed by a processor for implementing the weighing method of the washing machine according to the first aspect of the present invention
When the program of the computer stored on the storage medium is executed by the processor, the rotation speed of the motor of the washing machine is controlled to gradually increase to a first rotation speed, the washing machine is operated at the first rotation speed for a first preset time to enter a constant speed stage, then the first number of turns of the motor in the constant speed stage and first electric energy consumed by the motor are acquired, the motor is controlled to accelerate to a second rotation speed within a second time to enable the washing machine to enter an acceleration stage, then the second number of turns of the motor in the acceleration stage and second electric energy consumed by the motor are acquired, and finally, a weighing coefficient is acquired according to the second electric energy; the weight of the load is determined according to the first turn number, the first electric energy, the weighing coefficient, the second turn number and the second electric energy, data errors caused by fitting by adopting the same curve are avoided, and the weighing precision is improved.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which,
FIG. 1 is a schematic diagram of the relationship between the consumed electrical energy and the rotational speed of an electric machine
Fig. 2 is a flowchart of a weighing method of a washing machine according to an embodiment of the present invention;
FIG. 3 is a schematic view illustrating a weighing method of a washing machine according to an embodiment of the present invention; and
fig. 4 is a block schematic view of a weighing apparatus of a washing machine according to one embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The present inventors have made a study and recognition of the following problems:
during the acceleration of the washing machine, if the load is small, the power consumed by the motor will vary linearly, but if the load is large, for example, more than 18kg, as shown in fig. 1, as the rotation speed of the motor increases to a higher rotation speed V, which is higher than that of the small load, and the same rotation speed is increased, the running power of the motor is larger, resulting in a higher power consumed by the motor during the acceleration phase. When the washing machine is used for weighing, data fitting is generally carried out according to data such as electric energy consumed by a motor and a weighing coefficient in an acceleration stage of the washing machine, the weight of a load is obtained, and if the load of the washing machine is large, the data fitting is still carried out by adopting the weighing coefficient which is the same as that of a small load, so that the weighing result is inaccurate.
To this end, the invention proposes a weighing method of a washing machine, a weighing device of a washing machine, a washing machine and a non-transitory computer-readable storage medium.
A weighing method of a washing machine, a weighing apparatus of a washing machine, a washing machine and a non-transitory computer-readable storage medium according to embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 2 is a flowchart of a weighing method of a washing machine according to an embodiment of the present invention, as shown in fig. 1, the method including the steps of:
and S1, controlling the rotation speed of the motor of the washing machine to gradually increase to a first rotation speed V1, and operating at the constant speed of the first rotation speed V1 for a first preset time t1 so as to enable the washing machine to enter a constant speed stage.
S2, acquiring the accumulated first turn number n1 of the motor in the constant speed stage and the first electric energy E1 consumed by the motor.
Wherein the first electric energy E1 consumed by the motor in the constant speed stage can be obtained by integrating the product of the current and the voltage of the motor in the constant speed process.
And S3, controlling the motor to run at the second accelerated speed V2 within the second time t2, so that the washing machine enters an acceleration stage.
And S4, acquiring a second turn n2 of the accumulated rotation of the motor in the acceleration stage and a second electric energy E2 consumed by the motor.
And S5, acquiring a weighing coefficient according to the second electric energy E2.
Further, obtaining the weighing factor according to the second electric energy E2 may include: judging whether the second electric energy E2 is larger than the preset electric energy or not; the second electric energy E2 is less than or equal to the preset electric energy, and the first weighing coefficient is taken as the weighing coefficient; the second electric energy E2 is larger than the preset electric energy, and the second weighing coefficient is used as the weighing coefficient.
The preset electric energy, the first weighing coefficient and the second weighing coefficient are obtained in advance through a large number of tests according to the specific conditions of the washing machine and are preset in corresponding storage equipment of the washing machine. For example, the preset electric energy may be electric energy consumed by the motor during the acceleration phase when the load of the washing machine is 18kg, the first weighing coefficient may be an optimal weighing coefficient when the load of the washing machine is less than 18kg, and the second weighing coefficient may be an optimal weighing coefficient when the load of the washing machine is greater than 18kg, that is, overall, if the load of the washing machine is less than 18kg, the weight error of the load fitted by using the first weighing washing is the smallest, and if the load of the washing machine is greater than or equal to 18kg, the weight error of the load fitted by using the second weighing washing is the smallest.
And S6, determining the weight of the load according to the first turn number n1, the first electric energy E1, the weighing coefficient, the second turn number n2 and the second electric energy E2.
Specifically, as shown in fig. 3, after the weighing signal is received, the rotation speed of the washing machine is controlled to gradually increase to a first rotation speed V1, the washing machine is operated at the first rotation speed V1 for t1 time at a constant speed, a constant speed stage is entered, and the accumulated rotation number n1 of the motor and the accumulated consumed electric energy E1 of the constant speed stage are obtained. Then, the motor is controlled to gradually accelerate to a second rotating speed V2 so as to enable the washing machine to enter an acceleration stage, and a second accumulated rotation number n2 of the motor and a second electric energy E2 consumed by the motor in the acceleration stage are obtained. Then judging the second electric energy E2, if the second electric energy E2 is larger than the preset electric energy, indicating that the load is heavy, taking the second weighing coefficient as a weighing coefficient, and determining the weight of the load according to the first turn number n1, the first electric energy E1, the second weighing coefficient, the second turn number n2 and the second electric energy E2; if the second electric energy E2 is less than or equal to the preset electric energy, the load is light, the first weighing coefficient is used as the weighing coefficient, and the weight of the load is determined according to the first turn number n1, the first electric energy E1, the first weighing coefficient, the second turn number n2 and the second electric energy E2.
Specifically, if the second power E2 is less than or equal to the preset power, the weight of the load of the washing machine may be calculated according to the following equation (1):
f(G)＝k11[(E1/n1)+k12*(E2/n2)](1)
wherein f (G) is the weight of the load, k11 and k12 are first weighing coefficients, E1 is first electric energy n1 is a first number of turns, and n2 is a second number of turns; e2 is the second electrical energy.
If the second power E2 is greater than the preset power, the weight of the load of the washing machine may be calculated according to the following equation (2):
f(G)＝k21[(E1/n1)+k22*(E2/n2)](1)
wherein f (G) is the weight of the load, k21 and k22 are second weighing coefficients, E1 is a first electric energy n1 is a first number of turns, and n2 is a second number of turns; e2 is the second electrical energy.
Therefore, the method re-determines the weighing coefficient according to the electric energy consumed by the motor in the motor acceleration stage, avoids data errors caused by fitting by adopting the same curve, improves the weighing precision, avoids the conditions of tub collision, starting failure, incapability of achieving the highest rotating speed and the like when the washing machine is dehydrated, and ensures the washing effect of the washing machine.
According to an embodiment of the present invention, the weighing method of the washing machine may further include: acquiring a torque fluctuation average value T in an acceleration stage; and determining the weight of the load according to the first turn number n1, the first electric energy E1, the weighing coefficient, the second turn number n2, the second electric energy E2 and the torque fluctuation average value T.
Specifically, to obtain more accurate weight of the load and reduce errors, the average value T of the torque fluctuation in the acceleration phase may also be obtained, for example, by obtaining the difference between the maximum value Tmax and the minimum value Tmin of the torque per rotation of the motor in the acceleration phase, and adding all the differences to divide by the total number of rotations of the motor, the average value T of the torque fluctuation may be obtained. If the second power E2 is less than or equal to the preset power, the weight of the load of the washing machine may be calculated according to the following equation (3):
f(G)＝k11[(E1/n1)+k12*(E2/n2)]+K13*E1*E2/T (3)
wherein f (G) is the weight of the load, K11, K12 and K13 are first weighing coefficients, E1 is first electric energy n1 is a first number of turns, and n2 is a second number of turns; e2 is a second electrical energy; and T is the torque fluctuation average value in the acceleration stage.
If the second power E2 is greater than the preset power, the weight of the load of the washing machine may be calculated according to the following equation (4):
f(G)＝k21[(E1/n1)+k22*(E2/n2)]+K23*E1*E2/T (4)
wherein f (G) is the weight of the load, K21, K22 and K23 are second weighing coefficients, E1 is first electric energy n1 is a first number of turns, and n2 is a second number of turns; e2 is the second electric energy, and T is the torque fluctuation average value of the acceleration stage.
The washing machine of the present invention may be a drum washing machine.
According to the weighing method of the washing machine, after a weighing signal is received, the rotating speed of the motor of the washing machine is controlled to be gradually increased to a first rotating speed, the washing machine is operated at the first rotating speed for a first preset time at a constant speed, then the first number of turns of the motor in the constant speed stage and first electric energy consumed by the motor are acquired, the motor is controlled to be accelerated to a second rotating speed within a second time, the washing machine is enabled to enter an acceleration stage, then the second number of turns of the motor in the acceleration stage and second electric energy consumed by the motor are acquired, and finally, a weighing coefficient is acquired according to the second electric energy; and determining the weight of the load according to the first turn, the first electric energy, the weighing coefficient, the second turn and the second electric energy. According to the method, the weighing coefficient is determined again according to the electric energy consumed by the motor in the motor acceleration stage, the data error caused by fitting by adopting the same curve is avoided, and the weighing precision is improved.
Corresponding to the weighing method of the washing machine, the application also provides a weighing device of the washing machine. For details that are not disclosed in the device embodiments, reference may be made to the above-described method embodiments, which are not described again.
Fig. 4 is a block schematic view of a weighing apparatus of a washing machine according to one embodiment of the present invention. As shown in fig. 4, the apparatus includes: the device comprises a control module 1, a first acquisition module 2, a second acquisition module 3 and a calculation module 4.
The control module 1 is used for controlling the rotation speed of the motor of the washing machine to gradually increase to a first rotation speed V1 and to operate at a constant speed of the first rotation speed V1 for a first preset time t1, so that the washing machine enters a constant speed stage; the first obtaining module 2 is used for obtaining a first turn number n1 accumulated by the motor in a constant speed stage and a first electric energy E1 consumed by the motor; the control module 1 is further configured to control the motor to accelerate to a second rotation speed n2 within a second time t2, so that the washing machine enters an acceleration phase; the second obtaining module 3 is configured to obtain a second turn n2 of cumulative rotation of the motor in the acceleration stage and a second electric energy E2 consumed by the motor, and obtain a weighing coefficient according to the second electric energy E2; the calculation module 4 determines the weight of the load from the first number of turns n1, the first electrical energy E1, the weighing factor, the second number of turns n2 and the second electrical energy E2.
Further, according to an embodiment of the present invention, the second obtaining module 3 may further be configured to: and judging whether the second electric energy E2 is greater than the preset electric energy or not, wherein the second electric energy E2 is less than or equal to the preset electric energy, the first weighing coefficient is taken as the weighing coefficient, the second electric energy E2 is greater than the preset electric energy, and the second weighing coefficient is taken as the weighing coefficient.
Specifically, as shown in fig. 3, after receiving the weighing signal, the control module 1 first controls the rotation speed of the washing machine to gradually increase to a first rotation speed V1, and operates at the first rotation speed V1 for t1 time at a constant speed, and enters a constant speed stage, and the first obtaining module 2 obtains the cumulative rotation number n1 of the motor and the cumulative consumed electric energy E1 in the constant speed stage. Then, the control module 1 controls the motor to gradually accelerate to a second rotation speed V2 to make the washing machine enter an acceleration stage, and the second obtaining module 3 obtains a second number of accumulated rotations n2 of the motor and a second electric energy E2 consumed by the motor in the acceleration stage. Then the second obtaining module 3 judges the second electric energy E2, if the second electric energy E2 is greater than the preset electric energy, it is indicated that the load is heavy, the second obtaining module 3 takes the second weighing coefficient as the weighing coefficient, and the calculating module 4 determines the weight of the load according to the first turn n1, the first electric energy E1, the second weighing coefficient, the second turn n2 and the second electric energy E2; if the second electric energy E2 is less than or equal to the preset electric energy, the load is light, the second obtaining module 3 takes the first weighing coefficient as the weighing coefficient, and the calculating module 4 determines the weight of the load according to the first turn n1, the first electric energy E1, the first weighing coefficient, the second turn n2 and the second electric energy E2.
Specifically, if the second power E2 is less than or equal to the preset power, the calculation module 4 may calculate the weight of the load of the washing machine according to the following equation (1):
f(G)＝k11[(E1/n1)+k12*(E2/n2)](1)
wherein f (G) is the weight of the load, k11 and k12 are first weighing coefficients, E1 is first electric energy n1 is a first number of turns, and n2 is a second number of turns; e2 is the second electrical energy.
If the second power E2 is greater than the preset power, the calculation module 4 may calculate the weight of the load of the washing machine according to the following equation (2):
f(G)＝k21[(E1/n1)+k22*(E2/n2)](1)
wherein f (G) is the weight of the load, k21 and k22 are second weighing coefficients, E1 is a first electric energy n1 is a first number of turns, and n2 is a second number of turns; e2 is the second electrical energy.
Therefore, the device re-determines the weighing coefficient according to the electric energy consumed by the motor in the motor acceleration stage, avoids data errors caused by fitting by adopting the same curve, improves the weighing precision, avoids the conditions of tub collision, starting failure, incapability of achieving the highest rotating speed and the like when the washing machine is dehydrated, and ensures the washing effect of the washing machine.
According to an embodiment of the present invention, the weighing apparatus of the washing machine described above may further include: and a third obtaining module. The third acquisition module is used for acquiring a torque fluctuation average value T in an acceleration stage; the calculation module 4 may also be used to determine the weight of the load from the first number of turns n1, the first electrical energy E1, the weighing factor, the second number of turns n2, the second electrical energy E2 and the torque ripple mean T.
In the invention, the washing machine is a drum washing machine.
According to the weighing device of the washing machine, the rotating speed of the motor of the washing machine is controlled by the control module to gradually increase to the first rotating speed, the motor of the washing machine is operated at the first rotating speed for the first preset time at a constant speed, so that the washing machine enters a constant speed stage, then the first acquisition module acquires the first number of turns of the motor in the constant speed stage and the first electric energy consumed by the motor, then the control module controls the motor to accelerate to the second rotating speed within the second time, so that the washing machine enters an acceleration stage, the second acquisition module acquires the second number of turns of the motor in the acceleration stage and the second electric energy consumed by the motor, acquires the weighing coefficient according to the second electric energy, and finally the calculation module determines the weight of the load according to the first number of turns, the first electric energy, the weighing coefficient, the second number of turns and the second electric energy. Therefore, the device re-determines the weighing coefficient according to the electric energy consumed by the motor in the motor acceleration stage, avoids data errors caused by fitting by adopting the same curve, and improves the weighing precision.
In addition, the embodiment of the invention also provides a washing machine, which comprises the weighing device of the washing machine.
According to the washing machine provided by the embodiment of the invention, the weighing coefficient is determined again according to the electric energy consumed by the motor in the motor acceleration stage through the weighing device, so that the data error caused by fitting by adopting the same curve is avoided, and the weighing precision is improved.
An embodiment of the present invention proposes a non-transitory computer-readable storage medium having stored thereon a computer program, which is executed by a processor, for implementing the above-mentioned weighing method of a washing machine
When the program of the computer stored on the storage medium is executed by the processor, the rotation speed of the motor of the washing machine is controlled to gradually increase to a first rotation speed, the washing machine is operated at the first rotation speed for a first preset time to enter a constant speed stage, then the first number of turns of the motor in the constant speed stage and first electric energy consumed by the motor are acquired, the motor is controlled to accelerate to a second rotation speed within a second time to enable the washing machine to enter an acceleration stage, then the second number of turns of the motor in the acceleration stage and second electric energy consumed by the motor are acquired, and finally, a weighing coefficient is acquired according to the second electric energy; the weight of the load is determined according to the first turn number, the first electric energy, the weighing coefficient, the second turn number and the second electric energy, data errors caused by fitting by adopting the same curve are avoided, and the weighing precision is improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A weighing method of a washing machine is characterized by comprising the following steps:
controlling the rotating speed of a motor of the washing machine to gradually increase to a first rotating speed, and operating at the first rotating speed for a first preset time so as to enable the washing machine to enter a constant speed stage;
acquiring a first number of accumulated rotations of the motor and first electric energy consumed by the motor in the constant speed stage;
controlling the motor to run at a second speed in an accelerated mode within a second time so as to enable the washing machine to enter an acceleration stage;
acquiring a second number of accumulated rotations of the motor and second electric energy consumed by the motor in an acceleration stage;
acquiring a weighing coefficient according to the second electric energy;
and determining the weight of the load according to the first turn, the first electric energy, the weighing coefficient, the second turn and the second electric energy.
2. The weighing method of a washing machine according to claim 1, wherein obtaining a weighing factor according to the second power includes:
judging whether the second electric energy is larger than preset electric energy or not;
the second electric energy is less than or equal to the preset electric energy, and a first weighing coefficient is taken as a weighing coefficient;
and the second electric energy is larger than the preset electric energy, and a second weighing coefficient is used as a weighing coefficient.
3. The weighing method of a washing machine according to claim 1, further comprising:
acquiring a torque fluctuation average value of the acceleration stage;
and determining the weight of the load according to the first number of turns, the first electric energy, the weighing coefficient, the second number of turns, the second electric energy and the torque fluctuation average value.
4. The weighing method of a washing machine according to claims 1 to 3, wherein the washing machine is a drum washing machine.
5. A weighing device of a washing machine, comprising:
the control module is used for controlling the rotating speed of a motor of the washing machine to gradually increase to a first rotating speed and operating at the first rotating speed for a first preset time so as to enable the washing machine to enter a constant speed stage;
the first acquisition module is used for acquiring a first number of accumulated rotations of the motor and first electric energy consumed by the motor in the constant speed stage;
the control module is also used for controlling the motor to run to a second rotating speed in an accelerating mode within a second time so as to enable the washing machine to enter an accelerating stage;
the second acquisition module is used for acquiring a second number of turns of accumulated rotation of the motor in the acceleration stage and second electric energy consumed by the motor, and acquiring a weighing coefficient according to the second electric energy;
and the calculating module is used for determining the weight of the load according to the first turn number, the first electric energy, the weighing coefficient, the second turn number and the second electric energy.
6. The weighing apparatus of a washing machine as claimed in claim 5, wherein the second obtaining module is further configured to:
and judging whether the second electric energy is larger than preset electric energy or not, wherein the second electric energy is smaller than or equal to the preset electric energy, a first weighing coefficient is used as a weighing coefficient, the second electric energy is larger than the preset electric energy, and a second weighing coefficient is used as a weighing coefficient.
7. The weighing apparatus of a washing machine as claimed in claim 5, further comprising:
a third obtaining module, configured to obtain a torque fluctuation average value of the acceleration stage;
the calculation module is further configured to determine a weight of the load based on the first number of turns, the first electrical energy, the weighing factor, the second number of turns, the second electrical energy, and the torque ripple average.
8. Weighing device of a washing machine according to any of claims 5-7, characterized in that the washing machine is a drum washing machine.
9. A washing machine characterized by comprising a weighing device of a washing machine according to any one of claims 5-8.
10. A non-transitory computer-readable storage medium, characterized in that a computer program is stored thereon, which is executed by a processor, for implementing a weighing method of a washing machine according to any one of claims 1-4.
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| CN111501288B (en) | 2022-05-27 |
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