Control method for a washing apparatus

Abstract

The present application relates to the technical field of smart home, and particularly provides a control method for a washing device, aiming at solving the problem that the existing washing device directly injects water to a washing water level, resulting in an undesirable washing effect. To this end, the control method comprises the following steps: after clothes are put into an inner tub, the number of pulses of a driving mechanism is obtained; whether a gland has been placed in the inner tub is determined according to the number of pulses; and according to the determination result, the washing device is selectively injected with water to the washing water level, which can accurately determine whether the weight of the clothes can be determined, whether the washing water level can be accurately determined according to the weight of the clothes, and whether the washing water level meets the requirement of washing the clothes clean, thereby avoiding determining the washing water level according to the weight of the clothes when the weight of the clothes cannot be accurately determined, improving the washing effect of the clothes, and further improving the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smart home, and particularly provides a control method for a washing device. BACKGROUND

[0002] A washing machine is a common household laundry washing device. According to the washing method, the washing machine can be roughly divided into a pulsator washing machine and a drum washing machine. Taking the pulsator washing machine as an example, when performing a washing operation, the pulsator washing machine generally adopts a positive and negative rotation alternation mode to wash the laundry. The greater the strength of the rotation of the pulsator of the pulsator washing machine, the cleaner the washing. The pulsator washing machine achieves a high washing effect without relying on heating. However, the faster the rotation of the pulsator in the washing process, the greater the wear of the laundry.

[0003] In order to solve the above problems, the pulsator washing machine is provided with a pressure cover. The user can put the pressure cover into the inner tub according to the need to isolate the laundry from the pressure cover, thereby avoiding the wear of the laundry. However, the pulsator washing machine cannot identify whether the pressure cover is placed, especially in the case where the pressure cover is placed, which may result in the inability to determine the weight of the laundry. At this time, if the existing method of determining the washing water level according to the weight of the laundry is still used, it may result in a too low washing water level, which cannot meet the requirements of washing the laundry, and it is difficult to wash the laundry clean, thereby affecting the user's experience.

[0004] Therefore, there is a need in the art for a new control method for a washing device to solve the above problems. SUMMARY

[0005] The present application aims to solve the above technical problems, i.e., to solve the problem that the existing washing device directly injects water to the washing water level, resulting in an unsatisfactory washing effect.

[0006] The present application provides a control method for a washing device, the washing device comprising an inner tub, a pressure cover detachably arranged in the inner tub, a pulsator arranged at the bottom of the inner tub, and a driving mechanism for driving the rotation of the pulsator; after the laundry is put into the inner tub, the number of pulses of the driving mechanism is obtained; according to the number of pulses, it is judged whether the pressure cover has been placed in the inner tub; according to the judgment result, the washing device is selectively watered to the washing water level.

[0007] In the preferred technical solution of the control method, the step of "judging whether the grommet has been placed in the inner tub according to the pulse number" specifically comprises: calculating a first difference value between the pulse number and a preset pulse number; judging whether an absolute value of the first difference value is less than a first preset difference value; if the absolute value of the first difference value is less than the first preset difference value, determining that the grommet has been placed in the inner tub; and / or if the absolute value of the first difference value is greater than or equal to the first preset difference value, determining that the grommet has not been placed in the inner tub.

[0008] In the preferred technical solution of the control method, the step of "selectively causing the washing device to fill water to the washing water level according to the judgment result" specifically comprises: in the case of determining that the grommet has been placed in the inner tub, obtaining the washing water level; judging whether the washing water level is obtained; and selectively causing the washing device to fill water to the washing water level according to the judgment result.

[0009] In the preferred technical solution of the control method, the step of "selectively causing the washing device to fill water to the washing water level according to the judgment result" specifically comprises: if the washing water level is not obtained, causing the washing device to fill water to a first target water level; obtaining an actual water level after the washing device is caused to wash for a first preset time at a first preset water flow intensity; and judging whether to cause the washing device to continue to perform the water filling operation according to the actual water level.

[0010] In the preferred technical solution of the control method, the step of "judging whether to cause the washing device to continue to perform the water filling operation according to the actual water level" specifically comprises: calculating a second difference value between the actual water level and the first target water level; judging whether an absolute value of the second difference value is greater than a second preset difference value; and if the absolute value of the second difference value is greater than the second preset difference value, causing the washing device to continue to perform the water filling operation.

[0011] In the preferred technical solution of the control method, the step of "causing the washing device to continue to perform the water filling operation" specifically comprises: causing the washing device to continue to fill water to a second target water level; obtaining an actual water level again after the washing device is caused to wash for a second preset time at a second preset water flow intensity; judging whether to cause the washing device to continue to perform the water filling operation according to the actual water level obtained again; and wherein the second target water level is higher than the first target water level.

[0012] In the preferred technical solution of the control method, the control method further comprises: if the washing water level is obtained, causing the washing device to fill water to the washing water level; and / or if the absolute value of the second difference value is less than or equal to the second preset difference value, causing the washing device to stop filling water.

[0013] In the preferred technical solution of the control method, the step of selectively causing the washing device to inject water to the washing water level according to the judgment result further comprises: obtaining the weight of the laundry in the inner tub when it is determined that the cover is not placed in the inner tub; determining the washing water level according to the weight; and causing the washing device to inject water to the washing water level.

[0014] In the preferred technical solution of the control method, the control method further comprises: obtaining the current water level of the washing device; comparing the current water level with a preset water level; and selectively increasing the rotation-stop ratio of the driving mechanism by different degrees according to the comparison result.

[0015] In the preferred technical solution of the control method, the preset water level comprises a first preset water level and a second preset water level, wherein the first preset water level is smaller than the second preset water level; the step of comparing the current water level with the preset water level specifically comprises comparing the current water level with the first preset water level and the second preset water level respectively; and the step of selectively increasing the rotation-stop ratio of the driving mechanism by different degrees according to the comparison result specifically comprises: if the current water level is smaller than the first preset water level, increasing the rotation-stop ratio of the driving mechanism by a first rotation-stop ratio; if the current water level is greater than or equal to the first preset water level and smaller than or equal to the second preset water level, increasing the rotation-stop ratio of the driving mechanism by a second rotation-stop ratio; and if the current water level is greater than the second preset water level, increasing the rotation-stop ratio of the driving mechanism by a third rotation-stop ratio; wherein the first rotation-stop ratio is smaller than the second rotation-stop ratio, and the second rotation-stop ratio is smaller than the third rotation-stop ratio.

[0016] In the preferred technical solution of the control method, after the laundry is placed in the inner tub, the number of pulses of the driving mechanism is obtained; whether the cover has been placed in the inner tub is determined according to the number of pulses; and the pulsator washing machine is selectively caused to inject water to the washing water level according to the determination result.

[0017] Compared with the prior art which does not determine whether the cover is added, directly determines the water level according to the weight of the laundry, and runs the washing program based on the water level, the present application can accurately determine whether the cover has been placed in the inner tub according to the number of pulses of the driving mechanism driving the pulsator to rotate, and based on this, can accurately determine whether the weight of the laundry can be determined, whether the washing water level can be accurately determined according to the weight of the laundry, and whether the washing water level meets the requirement of washing the laundry clean, so as to selectively cause the pulsator washing machine to inject water to the washing water level, thereby avoiding the situation that the washing water level is determined according to the weight of the laundry when the weight of the laundry cannot be accurately determined, improving the washing effect of the laundry, and further improving the user experience.

[0018] Further, a first difference value between the calculated pulse number and the preset pulse number is calculated; according to a judgment result of whether the absolute value of the first difference value is less than a first preset difference value, it can be accurately judged whether the pressure cover has been placed in the inner tub, for example, if the absolute value of the first difference value is less than the first preset difference value, it means that the detected pulse number is very close to the preset pulse number (i.e. the number of pulses of the impeller idling), and the impeller is basically in an idling state, which means that the clothes placed in the inner tub do not directly contact with the impeller, so it can be determined that the pressure cover has been placed in the inner tub, and the clothes are placed on the pressure cover, thereby causing the impeller to idle; if the absolute value of the first difference value is greater than or equal to the first preset difference value, it means that the difference between the detected pulse number and the preset pulse number is large, and the impeller is in a state of rotating with load, which means that the clothes directly contact with the impeller, so it can be determined that the pressure cover has not been placed in the inner tub.

[0019] Further, in the case where it is determined that the pressure cover has been placed in the inner tub, since the clothes do not directly contact with the impeller, the weight of the clothes cannot be determined, and the washing water level cannot be determined according to the weight of the clothes, but the washing program to be executed may have recommended a washing water level or the user may have manually set a washing water level, therefore, the washing water level can be obtained, and according to a judgment result of whether the washing water level is obtained, the washing machine with an impeller is selectively filled with water to the washing water level, so that the washing water level can meet the requirement of cleaning the clothes, ensuring the washing effect of the clothes, and further improving the user experience.

[0020] Further, in the case where it is determined that the pressure cover has not been placed in the inner tub, the clothes directly contact with the impeller, and the weight of the clothes in the inner tub can be accurately obtained, then the washing water level is determined according to the weight of the clothes, and the washing machine with an impeller is filled with water to the washing water level, so that the washing water level can meet the requirement of cleaning the clothes, ensuring the washing effect of the clothes, and further improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0021] The control method of the present application will be described below with reference to the accompanying drawings and in combination with a washing machine with an impeller, and in the drawings:

[0022] Figure 1 is the main flowchart of the control method of the present application;

[0023] Figure 2 is the flowchart of the control method for judging whether the pressure cover has been placed in the inner tub of the present application;

[0024] Figure 3 is the flowchart of the control method for selectively filling water to the washing water level of the present application Figure 1 ;

[0025] Figure 4 is the flowchart of the control method for selectively filling water to the washing water level of the present application Figure 2 ;

[0026] Figure 5 is a flow chart of the control method of the present application for determining whether to continue the water injection operation;

[0027] Figure 6 is a flow chart of the control method of the present application for continuing the water injection operation;

[0028] Figure 7 is a complete flow chart of the control method of the present application;

[0029] Figure 8 is a flow chart of the control method of the present application for selectively increasing the rotation stop ratio of the driving mechanism according to different degrees;

[0030] Figure 9 is a logic diagram of the control method of the present application. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. For example, although the present application is described in combination with a pulsator washing machine, the technical solutions of the present application are not limited thereto, and the control method can obviously be applied to other washing devices such as a pulsator washing-drying integrated machine, and such changes do not deviate from the principles and scope of the present application.

[0032] It should be noted that in the description of the present application, the terms indicating the direction or positional relationship of "inner", "bottom", "upper", "center" and the like are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", "fourth", "fifth" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the term "provided" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0034] Based on the technical problem proposed in the background art, the present application provides a control method for a pulsator washing machine, which aims to accurately determine whether the pressure cover has been placed in the inner tub according to the number of pulses for driving the pulsator to rotate, and based on this, to accurately determine whether the weight of the clothes can be determined, whether the washing water level can be accurately determined according to the weight of the clothes, and whether the washing water level meets the requirement of washing the clothes clean, so as to selectively make the pulsator washing machine fill water to the washing water level, thereby avoiding determining the washing water level according to the weight of the clothes when the weight of the clothes cannot be accurately determined, improving the washing effect of the clothes, and further improving the user experience.

[0035] Firstly, the pulsator washing machine of the present application is described.

[0036] The pulsator washing machine of the present application comprises an inner tub, a pressure cover, a pulsator and a driving mechanism; wherein the pulsator is arranged at the inner bottom of the inner tub, the driving mechanism is connected with the pulsator for driving the pulsator to rotate; and the pressure cover can be detachably placed in the inner tub.

[0037] Preferably, a first mounting mechanism is arranged on the inner side wall of the inner tub, and a second mounting mechanism is arranged on the pressure cover, the second mounting mechanism being capable of extending and retracting relative to the pressure cover, and the second mounting mechanism being capable of cooperating with the first mounting mechanism when extending out of the pressure cover, so as to mount the pressure cover into the inner tub.

[0038] Preferably, the first mounting mechanism comprises a first part, a second part and a third part, the first part being fixed on the inner side wall of the inner tub, the second part extending perpendicularly from the first end of the first part (i.e. the end of the first part close to the pulsator) to the central part of the inner tub, and the third part extending perpendicularly from the lower part of the first part, the third part being located above the second part, the extending direction of the third part being substantially parallel to the radial direction of the inner tub and pointing to the central part of the inner tub, the second part and the third part being cooperatively limited and the second part being located above the pulsator, so as to fix the pressure cover between the second part and the third part.

[0039] Preferably, the second mounting mechanism comprises a mounting member and a spring, and the circumferential edge of the pressure cover is provided with a mounting groove, and the mounting member is connected with the inner wall of the mounting groove through the spring. Through the above arrangement, the mounting member can extend and retract relative to the mounting groove under the elastic action of the spring, and when the mounting member extends out of the mounting groove, it can cooperate with the second part and the third part to limit the pressure cover in the inner tub (i.e. between the second part and the third part); when the mounting member is pulled back into the mounting groove, the pressure cover can move freely in the inner tub, facilitating the mounting of the pressure cover into the inner tub 1 or the taking out of the pressure cover from the inner tub.

[0040] Furthermore, the number of first mounting mechanisms is two, three, or more, and the multiple first mounting mechanisms are evenly or non-uniformly arranged on the inner sidewall of the inner tub 1 around its circumference. The number of second mounting mechanisms matches the number of first mounting mechanisms, and each second mounting mechanism cooperates with a corresponding first mounting mechanism.

[0041] Of course, the structures of the first and second mounting mechanisms are not limited to those listed above. The first mounting mechanism can also be other structures such as protrusions or multiple protrusions on the inner side wall of the inner tub. The second mounting mechanism can also include a motor and a second mounting part mounted on the pressure cap, with the motor connected to the second mounting part for driving the second mounting part to extend and retract relative to the pressure cap.

[0042] Preferably, the drive mechanism drives the impeller to rotate via a clutch. The drive mechanism can be a stepper motor, a servo motor, or other motors.

[0043] See below. Figure 1 The control method of the present invention will be described below. Figure 1 This is the main flowchart of the control method of the present invention.

[0044] like Figure 1 As shown, the control method of the present invention includes the following steps:

[0045] S100: After the clothes are put into the inner drum, obtain the number of pulses of the drive mechanism;

[0046] S200. Based on the pulse count, determine whether the cap has been placed inside the inner barrel;

[0047] S300: Based on the judgment result, selectively fill the pulsator washing machine with water to the washing water level.

[0048] In step S100, after the clothes are put into the inner tub and after the pulsator washing machine is started but before the water filling operation is performed, the number of back electromotive force pulses generated by the drive mechanism can be obtained during the process of controlling the drive mechanism to drive the pulsator to rotate. At this time, the influence of the washing water can be eliminated, and it can be accurately determined whether the pressure cap has been placed in the inner tub.

[0049] The washing water level can be determined based on the weight of the clothes, set by the user, or set by the default water level of the washing program to be executed.

[0050] See below. Figure 2 The method for determining whether the cap has been placed inside the inner drum according to the present invention is described herein. Figure 2 This is a flowchart of the control method for determining whether the pressure cap has been placed inside the inner barrel according to the present invention.

[0051] likeFigure 2 As shown, the step of "judging whether the grommet has been placed in the inner tub according to the pulse number" in step S200 specifically comprises:

[0052] S211, calculating a first difference value between the pulse number and the preset pulse number;

[0053] S212, judging whether the absolute value of the first difference value is less than a first preset difference value; if yes, executing step S213; if no, executing step S214;

[0054] S213, judging that the grommet has been placed in the inner tub;

[0055] S214, judging that the grommet has not been placed in the inner tub.

[0056] The preset pulse number is the pulse number of the driving mechanism when the impeller is idling, or the preset pulse number can also be a pulse number set by a person skilled in the art according to experiments or experience, for example, if the driving mechanism is a fixed-frequency motor, the preset pulse number is 26, if the driving mechanism is a variable-frequency motor, the preset pulse number is 320, and a person skilled in the art can flexibly adjust and set the preset pulse number according to the actual structure of the impeller washing machine.

[0057] In step S211, the first difference value ΔP is the difference between the preset pulse number P0 and the detected pulse number P1, i.e. ΔP=P0-P1; or the first difference value ΔP can also be the difference between the detected pulse number P1 and the preset pulse number P0, i.e. ΔP=P1-P0. A person skilled in the art can determine the specific calculation method of the first difference value according to the use requirement. Therefore, the first difference value can be a positive number, zero or a negative number.

[0058] For example, the preset pulse number P0 is 26, the detected pulse number P1 in step S100 is 25.2, then ΔP=26-25.2=0.8; the preset pulse number P0 is 26, the detected pulse number P1 in step S100 is 21, then ΔP=21-26=-5.

[0059] In step S212, since the first difference value can be a positive number, zero or a negative number, the absolute value of the first difference value is compared with the first preset difference value, which improves the accuracy of the judgment.

[0060] In step S213, if the absolute value of the first difference value is less than the first preset difference value, for example, the first preset difference value is 1, the calculated first difference value is 0.8, and the absolute value of the first difference value is 0.8, which is less than the first preset difference value, it indicates that the detected pulse number is very close to the preset pulse number (i.e., the pulse number when the impeller is idling), and the impeller is basically in an idling state, which indicates that the clothes placed in the inner tub do not directly contact the impeller, and thus it can be determined that the pressure cover has been placed in the inner tub, and the clothes are placed on the pressure cover, thereby causing the impeller to idle.

[0061] In step S214, if the absolute value of the first difference value is greater than or equal to the first preset difference value, for example, the first preset difference value is 1, the calculated first difference value is -5, and the absolute value of the first difference value is 5, which is greater than the first preset difference value, it indicates that the detected pulse number is greatly different from the preset pulse number (i.e., the pulse number when the impeller is idling), and the impeller is in a state of rotating with a load, which indicates that the clothes directly contact the impeller, and thus it can be determined that the pressure cover is not placed in the inner tub.

[0062] It should be noted that the first difference value and the first preset difference value described above are exemplary and not limiting, and a person skilled in the art can flexibly adjust and set the first preset difference value according to the actual operation of the impeller washing machine, and calculate the first difference value according to the actually detected pulse number.

[0063] It should be further noted that in the above process, steps S213 to S214 have no sequence and are parallel, and are only related to the determination result of whether the absolute value of the first difference value is less than the first preset difference value, and the corresponding steps can be performed according to different determination results.

[0064] Alternatively, in an alternative embodiment, the step of "judging whether the pressure cover has been placed in the inner tub according to the pulse number" specifically comprises:

[0065] judging whether the pulse number is within a preset pulse range, wherein the preset pulse range is a pulse range of the driving mechanism corresponding to the idling of the impeller, for example, the driving mechanism is a fixed-frequency motor, the pulse number of the driving mechanism when the impeller is idling is 26, and correspondingly, the preset pulse range is 25-27; the driving mechanism is a variable-frequency motor, the pulse number of the driving mechanism when the impeller is idling is 320, and correspondingly, the preset pulse range is 310-330, and a person skilled in the art can flexibly adjust and set the preset pulse range according to the actual structure of the impeller washing machine.

[0066] If the pulse number is within the preset pulse range, it indicates that the impeller is basically in an idling state, and the clothes placed in the inner tub do not directly contact the impeller, and thus it can be determined that the pressure cover has been placed in the inner tub, and the clothes are placed on the pressure cover.

[0067] If the number of pulses is not within the preset pulse range and is less than the lower limit of the preset pulse range, it is determined that the pulsator is in a state of rotating with a load, and the laundry is in direct contact with the pulsator, so it can be determined that the grommet is not placed in the inner tub.

[0068] Of course, in actual application, the method for determining whether the grommet has been placed in the inner tub is not limited to the two methods listed above, and other methods can also be used to determine whether the grommet has been placed in the inner tub.

[0069] The following refers to Figures 3 to 6 The control method for selectively injecting water to the washing water level of the pulsator washing machine is described. Among them, Figure 3 is the flowchart of the control method for selectively injecting water to the washing water level of the pulsator washing machine Figure 1 ; Figure 4 is the flowchart of the control method for selectively injecting water to the washing water level of the pulsator washing machine Figure 2 ; Figure 5 is the flowchart of the control method for determining whether to continue the water injection operation of the pulsator washing machine; Figure 6 is the flowchart of the control method for continuing the water injection operation of the pulsator washing machine.

[0070] As Figure 3 shown, the step of "selectively injecting water to the washing water level of the pulsator washing machine according to the determination result" in step S300 specifically includes:

[0071] S311, in the case where it is determined that the grommet is not placed in the inner tub, obtaining the weight of the laundry in the inner tub;

[0072] S312, determining the washing water level according to the weight;

[0073] S313, injecting water to the washing water level of the pulsator washing machine.

[0074] In step S311, in the case where it is determined that the grommet is not placed in the inner tub, the laundry is in direct contact with the pulsator, so the weight of the laundry in the inner tub can be accurately obtained.

[0075] Further, the pulsator washing machine further comprises a weight sensor, and the weight of the laundry is detected by the weight sensor. Alternatively, after the driving mechanism rotates to a certain rotating speed and stops rotating, the weight of the laundry is calculated by reading the number of pulses generated by the driving mechanism. Of course, in actual application, the weight of the laundry can also be obtained by other ways.

[0076] In step S312, the preset weight range in which the weight of the laundry is located can be determined according to the weight of the laundry, and the washing water level can be determined according to the preset weight range. It is assumed that the pulsator washing machine includes three preset weight ranges, and the three preset weight ranges correspond to different washing water levels, for example, the first preset weight range is 0 kg-3 kg, and the corresponding washing water level is the first water level, the second water level, or the third water level; the second preset weight range is 3 kg-5 kg, and the corresponding washing water level is the fourth water level, the fifth water level, the sixth water level, or the seventh water level; and the third preset weight range is 5 kg-6 kg, and the corresponding washing water level is the eighth water level, the ninth water level, or the tenth water level. Of course, the number of preset weight ranges included in the washing machine, the division manner of the preset weight ranges, and the corresponding washing water level and rinsing water level are not limited to the above-mentioned cases, and the weight range can also be divided into two ranges, four ranges, or other ranges, regardless of how the weight range is divided, as long as each weight range corresponds to a different washing water level.

[0077] Further, if the weight of the laundry is 1.5 kg, the weight of the laundry is in the first preset weight range, and accordingly, the corresponding washing water level is the second water level; for example, the weight of the laundry is 3.3 kg, the weight of the laundry is in the second preset weight range, and accordingly, the corresponding washing water level is the fifth water level; for example, the weight of the laundry is 5.8 kg, the weight of the laundry is in the third preset weight range, and accordingly, the corresponding washing water level is the ninth water level, that is, the preset weight range in which the weight of the laundry is located can be determined according to the weight of the laundry, and the washing water level can be determined according to the preset weight range.

[0078] In step S313, the washing water level has been accurately determined according to the weight of the laundry, so that the washing water level can meet the requirement of cleaning the laundry, and the pulsator washing machine can be directly water-filled to the washing water level determined according to the weight of the laundry.

[0079] Continuing to refer to Figure 3 , in step S300, the step of "selectively causing the pulsator washing machine to water-fill to the washing water level according to the determination result" further includes:

[0080] S314, in a case where it is determined that the pressure cover has been placed in the inner tub, obtaining the washing water level;

[0081] S315, determining whether the washing water level is obtained;

[0082] S316, selectively causing the pulsator washing machine to water-fill to the washing water level according to the determination result.

[0083] In step S314 and step S315, in the case that it is determined that the cover has been placed in the inner tub, since the laundry is not in direct contact with the pulsator, the weight of the laundry cannot be accurately determined, the washing water level cannot be accurately determined according to the weight of the laundry, but the washing program to be executed can recommend a washing water level or the user manually sets a washing water level, therefore, the washing water level can be tried to be obtained, so as to determine whether the washing water level is obtained, and the washing water level recommended by the pulsator washing machine and the washing water level set by the user are prioritized.

[0084] It should be noted that in the above process, step S311 and step S314 have no sequence and are parallel, and are only related to the determination result of whether the cover has been placed in the inner tub, and the corresponding step can be executed according to different determination results.

[0085] Next, referring to Figure 4 , the step of "selectively causing the pulsator washing machine to fill water to a washing water level according to the determination result" in step S316 specifically includes:

[0086] S321, if the washing water level is obtained, causing the pulsator washing machine to fill water to the washing water level;

[0087] S322, if the washing water level is not obtained, causing the pulsator washing machine to fill water to a first target water level;

[0088] S323, causing the pulsator washing machine to wash at a first preset water flow intensity for a first preset time, and then obtaining an actual water level;

[0089] S324, determining whether to cause the pulsator washing machine to continue to perform the water filling operation according to the actual water level.

[0090] In step S321, if the washing water level is obtained, it can be that the washing program to be executed recommends a washing water level, for example, the home textile program, and the recommended washing water level is the tenth water level; the quick washing program, and the recommended washing water level is the fifth water level, etc.; or it can be that the user sets a washing water level, for example, the third water level. Regardless of which case, the obtained washing water level is used as a reference, and the pulsator washing machine is caused to directly fill water to the obtained washing water level.

[0091] In step S322, if the washing water level is not obtained, it indicates that the user does not set a washing water level, and the washing program to be executed does not recommend a washing water level (the program to be executed needs to determine a washing water level according to the weight of the laundry), and at this time, the weight of the laundry cannot be determined, the washing water level cannot be determined according to the weight of the laundry, even if the washing water level is determined, it can be zero water level, in this case, in order to ensure that the water level can meet the requirement of cleaning the laundry, the pulsator washing machine is caused to fill water to a first target water level, for example, the first water level, or the second water level or other water levels.

[0092] In step S323, after the pulsator washing machine is filled with water to the first target water level and the pulsator washing machine is washed at the first preset water flow intensity for the first preset time so that the clothes can be fully soaked, the actual water level is obtained. The first preset water flow intensity can be a rotation-to-stop ratio of the driving mechanism of 1.0 / 0.8 or 1.1 / 0.9 or other rotation-to-stop ratios, and the first preset time can be 15 s, 20 s, or 30 s or any other time.

[0093] Further, the pulsator washing machine further comprises a water level sensor for detecting the actual water level.

[0094] Next, referring to Figure 5 In step S324, the step of determining whether the pulsator washing machine continues to perform the water filling operation according to the actual water level specifically comprises:

[0095] S331, calculating a second difference between the actual water level and the first target water level;

[0096] S332, determining whether the absolute value of the second difference is greater than a second preset difference; if not, performing step S333; if yes, performing step S334;

[0097] S333, stopping the pulsator washing machine from filling water;

[0098] S334, continuing to perform the water filling operation by the pulsator washing machine.

[0099] In step S331, the second difference AV is the difference between the first target water level V0 and the detected actual water level V1, i.e., AV = V0-V1, or the difference between the detected actual water level V1 and the first target water level V0, i.e., AV = V1-V0. The specific calculation method of the second difference can be determined by the user according to the use requirement. Therefore, the second difference can be a positive number, zero, or a negative number.

[0100] For example, the first target water level V 01 The detected actual water level V1 is 0.4V0, and then AV = V 01 -0.4V 01 = 0.6V 01 ; or the first target water level V 01 The detected actual water level V1 is 0.95V0, and then AV = 0.95V 01 -V 01 = -0.05V 01 .

[0101] In step S332, since the second difference can be a positive number, zero, or a negative number, the absolute value of the second difference is compared with the second preset difference, which improves the accuracy of the determination.

[0102] In step S333, if the absolute value of the second difference value is less than or equal to a second preset difference value, for example, the second preset difference value is 0.1V 01 , the calculated second difference value is -0.05V 01 , and the absolute value thereof is 0.05V 01 , which is less than the second preset difference value, it indicates that the clothes are very few, and the water absorption is very small, so that the water level basically remains unchanged and is not reduced, and thus it can be considered that the current water level is appropriate, and the pulsator washing machine is stopped from water injection.

[0103] In step S334, if the absolute value of the second difference value is greater than the second preset difference value, for example, the second preset difference value is 0.1V 01 , the calculated second difference value is 0.6V 01 , and the absolute value thereof is 0.6V 01 , which is greater than the second preset difference value, it indicates that the clothes are more, and the water level is obviously lowered due to water absorption of the clothes, and the water level is low, which does not meet the requirement of cleaning the clothes, and thus the pulsator washing machine continues to perform water injection operation.

[0104] Specifically, as shown in Figure 6 , in step S334, the step of "making the pulsator washing machine continue to perform water injection operation" specifically includes:

[0105] S341, making the pulsator washing machine continue to inject water to a second target water level;

[0106] S342, making the pulsator washing machine wash for a second preset time according to a second preset water flow intensity, and then acquiring an actual water level again;

[0107] S343, judging whether to make the pulsator washing machine continue to perform water injection operation according to the actual water level acquired again.

[0108] In step S341, under the condition that the water level is low, the pulsator washing machine is made to continue to inject water to the second target water level, wherein the second target water level is higher than the first target water level, for example, the first target water level is the first water level, and the second target water level is the second water level, or the first target water level is the second water level, and the second target water level is the third water level, which increases the water level so that the water level can meet the requirement of cleaning the clothes.

[0109] In step S342, the impeller washing machine is filled with water to a second target water level, and the impeller washing machine is washed according to a second preset water flow intensity for a second preset time, so that the clothes can be fully water-absorbed, and then the actual water level is acquired again. The second preset water flow intensity can be a rotation-to-stop ratio of the driving mechanism of 1.0 / 0.8, or 1.1 / 0.9, or other rotation-to-stop ratios. The second preset time can be 15s, 20s, or 30s, or any other time. In addition, it should be noted that in actual application, the first preset water flow intensity and the second preset water flow intensity can be the same or different, and the first preset time and the second preset time can be the same or different.

[0110] In step S343, according to the actual water level acquired again, the specific method of determining whether to continue the water filling operation of the impeller washing machine can be referred to the detailed description in step S324, and will not be repeated again. In the process of determination, until the absolute value of the second difference between the actual water level acquired again and the target water level corresponding thereto is less than or equal to the second preset difference, the water filling is stopped.

[0111] It should be noted that the first target water level, the second target water level, the second preset difference, and the second difference listed above are exemplary and not limiting. Those skilled in the art can adjust and set the first target water level, the second target water level, and the second preset difference according to the actual running condition of the impeller washing machine, and calculate the second difference according to the actual detected water level.

[0112] It should also be noted that in the above process, steps S333 to S334 have no sequence and are parallel, and are only related to the determination result of whether the absolute value of the second difference is greater than the second preset difference, and the corresponding steps can be executed according to different determination results.

[0113] Alternatively, in an alternative embodiment, the step of "determining whether to continue the water filling operation of the impeller washing machine according to the actual water level" specifically includes:

[0114] determining whether the actual water level is within a preset deviation range. If the actual water level is within the preset deviation range, for example, the first target water level is V0, and the preset deviation range is 0.98V 0～1.02 V0, it indicates that the deviation of the actual water level from the first target water level is very small and basically consistent, the clothes are very few, and the water absorption is very small, so it can be considered that the current water level is appropriate, and the impeller washing machine is stopped. If the actual water level is not within the preset deviation range, it indicates that the deviation of the actual water level from the first target water level is large, the clothes are more, and the water level is significantly decreased due to the water absorption of the clothes, and the water level is low, which does not meet the requirement of cleaning the clothes. Therefore, the impeller washing machine continues to perform the water filling operation, and the above steps are repeated until the actual water level acquired again is within the corresponding preset deviation range.

[0115] Of course, in actual application, the method for judging whether to make the pulsator washing machine continue to perform the water injection operation is not limited to the two methods listed above, and other methods can also be used to judge whether to make the pulsator washing machine continue to perform the water injection operation.

[0116] The control method of the present application will be further described below with reference to Figure 7 and Figure 8 The control method of the present application will be further described below with reference to Figure 7 is a complete flowchart of the control method of the present application; Figure 8 is a flowchart of the control method of the present application for selectively increasing the rotation-to-stop ratio of the driving mechanism by different degrees.

[0117] As shown in Figure 7 , the control method further comprises:

[0118] S400, obtaining the current water level of the pulsator washing machine;

[0119] S500, comparing the current water level with the preset water level;

[0120] S600, selectively increasing the rotation-to-stop ratio of the driving mechanism by different degrees according to the comparison result.

[0121] In step S400, after the water injection of the pulsator washing machine is completed, when entering the washing stage, the current water level of the pulsator washing machine is detected by the water level sensor, wherein the current water level can be the water level determined according to the weight of the clothes in step S312, can be the water level obtained in step S314, or can be the final water level injected in steps S322 to S343.

[0122] In step S500, the preset water level includes a first preset water level and a second preset water level, wherein the first preset water level is less than the second preset water level, for example, the first preset water level is the fourth water level, and the second preset water level is the seventh water level or other water levels. The current water level is compared with the first preset water level and the second preset water level, respectively.

[0123] Of course, the preset water level can also include a third preset water level, a fourth preset water level, and other water levels. Those skilled in the art can flexibly adjust and set the number of preset water levels according to the actual water level of the pulsator washing machine in actual application. No matter how many preset water levels are set, the current water level is compared with all the preset water levels set.

[0124] In step S600, the rotation-stop ratio of the driving mechanism can be increased in different degrees according to the comparison result of the current water level with the first preset water level and the second preset water level respectively, so as to increase the washing water flow intensity in different degrees. Of course, when the number of preset water levels changes, no matter how many preset water levels are set, the rotation-stop ratio of the driving mechanism can be selectively increased in different degrees according to the comparison result of the current water level with all the preset water levels set respectively.

[0125] Further, as shown in FIG. 6, the step of "selectively increasing the rotation-stop ratio of the driving mechanism in different degrees according to the comparison result" in step S600 specifically includes: Figure 8

[0126] S611, if the current water level is less than the first preset water level, the rotation-stop ratio of the driving mechanism is increased by a first rotation-stop ratio;

[0127] S612, if the current water level is greater than or equal to the first preset water level and less than or equal to the second preset water level, the rotation-stop ratio of the driving mechanism is increased by a second rotation-stop ratio;

[0128] S613, if the current water level is greater than the second preset water level, the rotation-stop ratio of the driving mechanism is increased by a third rotation-stop ratio.

[0129] The first rotation-stop ratio is less than the second rotation-stop ratio, and the second rotation-stop ratio is less than the third rotation-stop ratio.

[0130] In step S611, if the current water level is less than the first preset water level, for example, the first preset water level is the fourth water level, and the current water level is the second water level, which is less than the first preset water level, indicating that the current water level is low, that is, a low water level, the rotation-stop ratio of the driving mechanism is increased by the first rotation-stop ratio, so as to increase the washing water flow intensity of the impeller washing machine.

[0131] For example, the initial rotation-stop ratio of the driving mechanism of the impeller washing machine in the washing stage is 1.0 / 0.8, the rotation time of the driving mechanism is extended by 0.5s, so that the rotation-stop ratio is increased to 1.5 / 0.8; or the stop time of the driving mechanism is shortened by 0.2s, so that the rotation-stop ratio is increased to 1.0 / 0.6; or the rotation time of the driving mechanism is extended by 0.3s, and the stop time of the driving mechanism is shortened by 0.1s, so that the rotation-stop ratio is increased to 1.3 / 0.7, and the washing water flow intensity of the impeller washing machine is increased by the above-mentioned ways.

[0132] ​In step S612, if the current water level is greater than or equal to the first preset water level and less than or equal to the second preset water level, for example, the first preset water level is the fourth water level, the second preset water level is the seventh water level, and the current water level is the fifth water level, which is between the first preset water level and the second preset water level, it is indicated that the current water level is moderate, which is the medium water level, and then the rotation-stop ratio of the driving mechanism is increased by a second rotation-stop ratio, the second rotation-stop ratio is greater than the first rotation-stop ratio, and the washing water flow intensity of the pulsator washing machine is greatly increased.

[0133] For example, the initial rotation-stop ratio of the driving mechanism of the pulsator washing machine in the washing stage is 1.0 / 0.8, the rotation time of the driving mechanism is extended by 1s, so that the rotation-stop ratio is increased to 2.0 / 0.8; or the stop time of the driving mechanism is shortened by 0.3s, so that the rotation-stop ratio is increased to 1.0 / 0.5; or the rotation time of the driving mechanism is extended by 0.5s and the stop time of the driving mechanism is shortened by 0.1s, so that the rotation-stop ratio is increased to 1.5 / 0.7, and the washing water flow intensity of the pulsator washing machine is increased by the above-mentioned manner.

[0134] In step S613, if the current water level is greater than the second preset water level, for example, the second preset water level is the seventh water level, and the current water level is the ninth water level, which is greater than the second preset water level, it is indicated that the current water level is high, which is the high water level, and then the rotation-stop ratio of the driving mechanism is increased by a third rotation-stop ratio, the third rotation-stop ratio is greater than the second rotation-stop ratio, and the washing water flow intensity of the pulsator washing machine is greatly increased.

[0135] For example, the initial rotation-stop ratio of the driving mechanism of the pulsator washing machine in the washing stage is 1.0 / 0.8, the rotation time of the driving mechanism is extended by 2s, so that the rotation-stop ratio is increased to 3.0 / 0.8; or the stop time of the driving mechanism is shortened by 0.4s, so that the rotation-stop ratio is increased to 1.0 / 0.4; or the rotation time of the driving mechanism is extended by 1.8s and the stop time of the driving mechanism is shortened by 0.2s, so that the rotation-stop ratio is increased to 2.8 / 0.6, and the washing water flow intensity of the pulsator washing machine is increased by the above-mentioned manner.

[0136] It should be noted that the first preset water level, the second preset water level and the current water level mentioned above are only exemplary and are not limited, and the first preset water level and the second preset water level can be flexibly adjusted and set according to the actual water level of the pulsator washing machine, and the current water level can be determined according to the actual detection result.

[0137] It should be further noted that in the above process, steps S611 to S613 have no sequence and are parallel, and are only related to the comparison results of the current water level with the first preset water level and the second preset water level, and the corresponding steps can be performed according to different comparison results.

[0138] In the following,Figure 9 This paper describes one possible control flow of the present invention. Figure 9 This is a logic diagram of the control method of the present invention.

[0139] like Figure 9 As shown, a possible complete flow of the control method of the present invention is as follows:

[0140] S701. After the clothes are put into the inner drum and the washing machine is started but before the water filling operation is performed, obtain the number of pulses P1 of the drive mechanism.

[0141] S702. Calculate the first difference ΔP between the pulse number P1 and the preset pulse number P0;

[0142] S703. Determine if |△P|<1 is true. If not, proceed to step S704; if yes, proceed to step S708.

[0143] S704. Determine that the pressure cap is not placed inside the inner barrel; after step S704, proceed to step S705;

[0144] S705, Obtain the weight m of the inner tub underwear;

[0145] S706. Determine the first washing water level V based on m. 11 ;

[0146] S707, Fill the pulsator washing machine with water to V. 11 ;

[0147] S708. Determine that the pressure cap has been placed inside the inner barrel; after step S708, proceed to step S709;

[0148] S709, Obtain the second washing water level V 12 ;

[0149] S710, Determine whether V has been acquired. 12 If yes, proceed to step S711; otherwise, proceed to step S712.

[0150] S711, Fill the pulsator washing machine with water to V. 12 ;

[0151] S712, Fill the pulsator washing machine with water to the first target water level V. 01 ;

[0152] S713. After the pulsator washing machine washes for 20 seconds according to the first preset water flow intensity, obtain the actual water level V. 13 ;

[0153] S714, Calculate V 13 With V 01the second difference value AV;

[0154] S715, judging whether |AV|>0.1V 01 If yes, step S716 is executed; if no, step S717 is executed.

[0155] S716, making the pulsator washing machine continue to fill water to the second target water level V 02 and returning to step S713 until the absolute value of the second difference value between the actual water level obtained again and the target water level corresponding thereto is less than or equal to the second preset difference value.

[0156] S717, making the pulsator washing machine stop filling water.

[0157] After step S707, step S711 or step S717, step S718 is executed.

[0158] S718, obtaining the current water level V of the pulsator washing machine 14 ;

[0159] S719, comparing V 14 with the first preset water level V 21 and the second preset water level V 22 respectively.

[0160] If V 14 <V 21 , step S720 is executed.

[0161] If V 21 ≤V 14 ≤V 22 , step S721 is executed.

[0162] If V 14 >V 22 , step S722 is executed.

[0163] S720, increasing the rotation-stop ratio of the driving mechanism by a first rotation-stop ratio.

[0164] S721, increasing the rotation-stop ratio of the driving mechanism by a second rotation-stop ratio.

[0165] S722, increasing the rotation-stop ratio of the driving mechanism by a third rotation-stop ratio.

[0166] Wherein, the first rotation-stop ratio is less than the second rotation-stop ratio, and the second rotation-stop ratio is less than the third rotation-stop ratio.

[0167] S723, making the pulsator washing machine execute the washing operation according to the increased rotation-stop ratio.

[0168] It should be noted that the above embodiments are only a preferred embodiment of the present application, only used to illustrate the principles of the method of the present application, and are not intended to limit the scope of protection of the present application. In practical applications, those skilled in the art can assign the above functions to different steps according to the needs, i.e., further decompose or combine the steps in the embodiments of the present application. For example, the steps of the above embodiments can be combined into one step, or further split into multiple sub-steps to complete all or part of the functions described above. The names of the steps involved in the embodiments of the present application are only for the purpose of distinguishing the steps, and are not considered as a limitation of the present application.

[0169] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after these changes or replacements will fall within the protection scope of the present application.

Claims

1. A control method for a washing apparatus, characterized by, The washing apparatus includes an inner tub, a gland detachably disposed in the inner tub, a pulsator disposed at a bottom of the inner tub, and a driving mechanism for driving the pulsator to rotate; After laundry is put into the inner tub, a number of pulses of the driving mechanism is acquired; According to the number of pulses, it is determined whether the gland has been put into the inner tub; According to the determination result, the washing apparatus is selectively supplied with water to a washing water level; The step of "determining whether the gland has been put into the inner tub according to the number of pulses" specifically includes: calculating a first difference between the number of pulses and a preset number of pulses; determining whether an absolute value of the first difference is less than a first preset difference; if the absolute value of the first difference is less than the first preset difference, it is determined that the gland has been put into the inner tub; and / or if the absolute value of the first difference is greater than or equal to the first preset difference, it is determined that the gland has not been put into the inner tub.

2. The control method according to claim 1, characterized by, The step of "selectively supplying the washing apparatus with water to a washing water level according to the determination result" specifically includes: in the case where it is determined that the gland has been put into the inner tub, acquiring the washing water level; determining whether the washing water level is acquired; according to the determination result, the washing apparatus is selectively supplied with water to the washing water level.

3. The control method according to claim 2, characterized by, The step of "selectively supplying the washing apparatus with water to a washing water level according to the determination result" specifically includes: if the washing water level is not acquired, the washing apparatus is supplied with water to a first target water level; after the washing apparatus is washed for a first preset time at a first preset water flow intensity, an actual water level is acquired; according to the actual water level, it is determined whether the washing apparatus is continuously supplied with water.

4. The control method according to claim 3, characterized by The step of "determining whether the washing apparatus is continuously supplied with water according to the actual water level" specifically includes: calculating a second difference between the actual water level and the first target water level; determining whether an absolute value of the second difference is greater than a second preset difference; if the absolute value of the second difference is greater than the second preset difference, the washing apparatus is continuously supplied with water.

5. The control method according to claim 4, characterized by The step of "continuously supplying the washing apparatus with water" specifically includes: the washing apparatus is continuously supplied with water to a second target water level; after the washing apparatus is washed for a second preset time at a second preset water flow intensity, the actual water level is acquired again; according to the actual water level acquired again, it is determined whether the washing apparatus is continuously supplied with water; the second target water level is higher than the first target water level.

6. The control method according to claim 4, characterized by The control method further includes: if the washing water level is acquired, the washing apparatus is supplied with water to the washing water level; and / or if the absolute value of the second difference is less than or equal to the second preset difference, the washing apparatus is stopped from being supplied with water.

7. The control method according to claim 1, characterized by, The step of "selectively supplying the washing apparatus with water to a washing water level according to the determination result" further includes: in the case where it is determined that the gland has not been put into the inner tub, a weight of laundry in the inner tub is acquired; the washing water level is determined according to the weight; the washing apparatus is supplied with water to the washing water level.

8. The control method according to claim 1, characterized by, The control method further comprises: acquiring a current water level of the washing device; comparing the current water level with a preset water level; selectively increasing a rotation-to-stop ratio of the driving mechanism according to a comparison result.

9. The control method according to claim 8, characterized by, The preset water level comprises a first preset water level and a second preset water level, wherein the first preset water level is less than the second preset water level. The step of comparing the current water level with the preset water level specifically comprises: comparing the current water level with the first preset water level and the second preset water level respectively. The step of selectively increasing the rotation-to-stop ratio of the driving mechanism according to the comparison result specifically comprises: if the current water level is less than the first preset water level, increasing the rotation-to-stop ratio of the driving mechanism by a first rotation-to-stop ratio; if the current water level is greater than or equal to the first preset water level and less than or equal to the second preset water level, increasing the rotation-to-stop ratio of the driving mechanism by a second rotation-to-stop ratio; if the current water level is greater than the second preset water level, increasing the rotation-to-stop ratio of the driving mechanism by a third rotation-to-stop ratio; wherein the first rotation-to-stop ratio is less than the second rotation-to-stop ratio, and the second rotation-to-stop ratio is less than the third rotation-to-stop ratio.

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