A method for controlling water inlet of a washing machine and a washing machine

Abstract

The application discloses a kind of washing machine water inlet control method and washing machine, belong to washing machine control field;After receiving preset water inlet instruction, first judge whether the sensor for detecting the water inlet amount of washing machine is failure, when the sensor fails, still control water inlet valve to open, and according to the water inlet amount required by washing machine Determine the target water inlet time of water inlet valve, control water inlet valve opening time is target water inlet time enough.This application scheme detects the sensor for detecting the water inlet amount of washing machine failure, does not need to stop directly, user can still continue to use washing machine to wash;At this time, first determine the required water inlet amount, according to water inlet amount Determine target water inlet time, control water inlet valve to open, and opening time is target water inlet time. That is, when the sensor for detecting the water inlet amount of washing machine fails, the opening time of water inlet valve is controlled to control the water inlet amount, to ensure the normal water inlet of washing machine, and does not need to replace mainboard, reduce cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of washing machine control, in particular, to a washing machine water inlet control method and a washing machine. BACKGROUND

[0002] With the development of intelligent washing machines, washing machines are becoming more and more essential intelligent devices in life. After being used for a period of time, the washing machine may malfunction. The existing washing machines usually have a fault detection program, and when the washing machine malfunctions, the washing machine stops working and does not continue to work. However, many washing machines report some problems that are easy to handle, directly stopping the use affects the normal life rhythm of the user, and once the fault is reported, the mainboard needs to be replaced directly, which is high in cost. SUMMARY

[0003] In order to overcome the defects of the prior art, the present application provides a washing machine water inlet control method and a washing machine to solve the problem that the existing washing machine directly stops using after malfunctioning, affecting the normal life rhythm of the user, and once the fault is reported, the mainboard needs to be replaced directly, which is high in cost.

[0004] The technical scheme adopted by the present application to solve its technical problems is:

[0005] In a first aspect, a washing machine water inlet control method is provided, comprising the following steps:

[0006] When a preset water inlet instruction is received, it is detected whether a sensor for detecting the water inlet amount of the washing machine is malfunctioning;

[0007] If the sensor is malfunctioning, the water inlet amount required by the washing machine is determined;

[0008] According to the water inlet amount, the target water inlet time of the water inlet valve of the washing machine is determined;

[0009] The water inlet valve is controlled to be opened, and the opening time of the water inlet valve is the target water inlet time.

[0010] Further, it further comprises:

[0011] If the sensor is normal, the water inlet valve is opened, and the actual water level value detected by the sensor is obtained;

[0012] If the actual water level value is equal to the preset water level value, the water inlet valve is controlled to be closed.

[0013] Further, the determination of the target water inlet time of the water inlet valve of the washing machine according to the water inlet amount comprises:

[0014] The preset water inlet time corresponding to the water inlet amount is obtained;

[0015] The preset water inlet time is taken as the target water inlet time.

[0016] Further, the target water inlet time of the water inlet valve of the washing machine is determined according to the water inlet amount, comprising:

[0017] The average opening time in the current washing program before the sensor fails and the preset water inlet time range corresponding to the water inlet amount are obtained, and the average opening time is an average value of a preset number of opening times before the sensor fails.

[0018] If the average opening time is in the preset time range, the preset water inlet time is taken as the target water inlet time.

[0019] Further, it further comprises:

[0020] If the average opening time is not in the preset time range, the average opening time is taken as the target water inlet time.

[0021] Further, the water inlet amount required by the washing machine is determined, comprising:

[0022] The washing mode and the washing stage of the current washing machine are obtained.

[0023] The preset water inlet amount corresponding to the washing stage in the washing mode is taken as the water inlet amount required by the current washing machine.

[0024] Further, the sensor for detecting the water inlet amount of the washing machine comprises a liquid level sensor or a water level sensor or a flow meter.

[0025] Further, it further comprises: if the sensor is faulty for the first time, a fault prompt is sent to the user.

[0026] Further, the preset water inlet instruction is any one of the water inlet instruction of the main washing stage and the water inlet instruction of the rinsing stage.

[0027] In a second aspect, a washing machine is provided, which applies any one of the methods provided in the technical solutions of the first aspect.

[0028] Beneficial effects:

[0029] The technical scheme of the application provides a washing machine water inlet control method and a washing machine. After receiving a preset water inlet instruction, it is first judged whether a sensor for detecting the water inlet amount of the washing machine is faulty. When the sensor is faulty, the water inlet valve is still controlled to be opened, and the target water inlet time of the water inlet valve is determined according to the required water inlet amount of the washing machine, and the opening time of the water inlet valve is the target water inlet time. When the sensor for detecting the water inlet amount of the washing machine is detected to be faulty, the application scheme does not need to be directly stopped, and the user can still use the washing machine for washing. At this time, the required water inlet amount is first determined, then the target water inlet time of the water inlet valve is determined according to the water inlet amount, and finally the water inlet valve is controlled to be opened, and the opening time is the target water inlet time. That is, when the sensor for detecting the water inlet amount is faulty, the application scheme controls the water inlet amount by controlling the opening time of the water inlet valve, ensures the normal water inlet of the washing machine, and does not need to replace the mainboard, thereby reducing the cost. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0031] Figure 1 It is a washing machine water inlet control method flow chart provided by the embodiment of the application;

[0032] Figure 2 It is a special water inlet program control method flow chart provided by the embodiment of the application;

[0033] Figure 3 It is a washing machine water inlet control device structure schematic diagram provided by the embodiment of the application. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the application more clear, the technical scheme of the application will be described in detail below with reference to the drawings and embodiments. Obviously, the described embodiments are only some embodiments of the application, not all embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the application.

[0035] The first embodiment, with reference to Figure 1 The embodiment of the application provides a washing machine water inlet control method, comprising the following steps:

[0036] S11: When receiving a preset water inlet instruction, detecting whether a sensor for detecting the water inlet amount of the washing machine is faulty;

[0037] S12: determining the water amount required by the washing machine if the sensor fails;

[0038] S13: determining the target water filling time of the water filling valve according to the water amount;

[0039] S14: controlling the water filling valve to open, and the opening time of the water filling valve being the target water filling time.

[0040] The washing machine water filling control method and the washing machine provided by the embodiment of the application first determine whether the sensor for detecting the water amount of the washing machine fails after receiving the preset water filling instruction, and when the sensor fails, the water filling valve is still controlled to open, and the target water filling time of the water filling valve is determined according to the water amount required by the washing machine, and the opening time of the water filling valve is controlled to be the target water filling time. When the sensor for detecting the water amount of the washing machine fails, the application scheme does not need to be directly stopped, and the user can still use the washing machine for washing. At this time, the water amount required is first determined, then the target water filling time of the water filling valve is determined according to the water amount, and finally the water filling valve is controlled to open, and the opening time is the target water filling time. That is, when the sensor for detecting the water amount fails, the application scheme controls the water amount by controlling the opening time of the water filling valve, ensures the normal water filling of the washing machine, and does not need to replace the mainboard, thereby reducing the cost.

[0041] The second embodiment, as a supplement to the first embodiment, the embodiment of the application provides a specific washing machine water filling control method, as shown in Figure 2 , and the specific process is as follows:

[0042] The current washing machine detects the water level according to the liquid level sensor / flow meter and other sensors to determine how much water the washing machine has filled. The program of the washing machine divides the water amount into gears, and different washing programs correspond to different gear water level values (or water amounts). The washing machine controls the water filling valve to fill water, and the opening time of the water filling valve is uncertain until the water filling reaches the set water level value. In the embodiment of the application, when all these sensors fail, the water filling is performed according to the preset water filling time in the special water filling program table (as shown in Table 1), the opening time of the water filling valve is controlled, the water filling of the washing machine is ensured to be normal, and the normal washing effect is achieved.

[0043] Table 1

[0044]

[0045] According to the water level values in Table 1, the preset water inlet time t1 is 15s-60s, preferably 40s, when the test data is at water level value 1; the preset water inlet time t2 is 60-100s, preferably 70s, when the test data is at water level value 2; the preset water inlet time t3 is 100s-200s, preferably 120s, when the test data is at water level value 3; and the preset water inlet time t4 is 200s-400s, preferably 210s, when the test data is at water level value 4.

[0046] In the standard washing mode, the washing machine can be filled with water of water level value 2 in the main washing process, and the water level value 2 corresponds to the preset water inlet time t2; and the washing machine can be filled with water of water level value 3 in the rinsing process, and the water level value 3 corresponds to the preset water inlet time t3.

[0047] As an optional implementation manner of the embodiment of the application, a preferred value in the preset water inlet time range is directly selected as the preset water inlet time, and the preset water inlet time is directly taken as the target water inlet time.

[0048] In the fast washing mode, the washing machine can be filled with water of water level value 1 in the main washing process, and the water level value 1 corresponds to the preset water inlet time t1; and the washing machine can be filled with water of water level value 2 in the rinsing process, and the water level value 2 corresponds to the preset water inlet time t2.

[0049] However, in actual control, since there is an error between the actual water inlet condition and the preset condition of each washing machine, directly taking the preset water inlet time as the target water inlet time can cause the actual water inlet to not meet the actual demand or to greatly deviate from the actual demand. Therefore, another optional implementation manner is provided in the embodiment of the application.

[0050] In each washing process, the washing machine records the time when the water inlet valve is opened before the liquid level sensor fails. The standard process t 51 is the cumulative time when the water inlet valve of the washing machine is opened in the main washing stage, t 52 is the cumulative time when the water inlet valve of the washing machine is opened in the rinsing stage. The time when the water inlet valve is opened n times before the liquid level sensor fails is calculated; n is in the range of 1-10 times, preferably 3 times. The time when the water inlet valve is opened in the main washing process is t 51 = (t 511 +t 512 +t 513 ) / 3; and the time when the water inlet valve is opened in the rinsing process is t 52 = (t 521 +t 522 +t 523 ) / 3. The fast washing process t 61 is the cumulative time when the water inlet valve of the washing machine is opened in the main washing stage, t 62The accumulated time for opening the water inlet valve of the washing machine in the rinsing stage. The time for opening the water inlet valve n times before the liquid level sensor fails is calculated; n ranges from 1 to 20 times, preferably 3 times. The time for opening the water inlet valve in the main washing process is t 61 = (t 611 +t 612 +t 613 ) / 3; the time for opening the water inlet valve in the rinsing process is t 62 = (t 621 +t 622 +t 623 ) / 3. Similarly, the average time of the previous 3 times is calculated for different washing programs. In the standard program, the calculated time t 51 for the main washing process is compared with the range of t2, if not in the range, the time for opening the water inlet valve of the washing machine is t 51 , if in the range of t2, the time for opening the water inlet valve of the washing machine in the main washing process is t2. In the standard program, the calculated time t 52 for the rinsing process is compared with the range of t3, if not in the range, the time for opening the water inlet valve of the washing machine is t 52 , if in the range of t3, the time for opening the water inlet valve of the washing machine in the rinsing process is t3. After obtaining the time for opening the water inlet valve, the water inlet valve is opened, and the washing process is continued immediately after the time is up.

[0051] It should be noted that each water inlet valve has a maximum water inlet amount, such as the commonly used 2.5L / min±15%, 5L / min±15%, and 8.5L / min±15% water inlet valves. The design of the water inlet valve limits the maximum water inlet amount. For example, the 5L / min±15% water inlet valve is designed to have a water inlet amount of 5L / min±15% under a water pressure of 0.02mpa-1mpa; if the water pressure is 0.01Mpa, the water inlet amount of the water inlet valve in one minute is about 3L. Therefore, in the instruction manual of the washing machine, as long as the water pressure is within the specified range, the flow rate of the water inlet valve will not change much and will only decrease but not increase, and will not exceed the maximum flow rate of the water inlet valve.

[0052] Therefore, in order to meet the actual water inlet amount under low water pressure conditions (the water pressure in actual life will not increase), the current water pressure in the water inlet valve is obtained, and the ratio of the current water pressure to the preset standard water pressure is obtained; when the water inlet valve is controlled to be opened, the opening time of the water inlet valve is the product of the target water inlet time and the ratio. For example, the standard water pressure main washing water inlet time is t1, and the main washing water inlet time under low water pressure is t2=t1*a%; the value of a% is the ratio of the current water pressure to the standard water pressure. The rest of the washing programs are similar.

[0053] The specific washing machine water inlet control method provided by the embodiment of the present application provides a special water inlet program when the liquid level sensor / water level sensor (a sensor for detecting the water inlet amount of the washing machine) is faulty, so that a certain amount of water is allowed to enter the washing machine, and the washing machine is allowed to normally operate. The number of times that the user needs to maintain the washing machine is reduced, the maintenance cost of the user is reduced, and the service life of the washing machine is prolonged. The special program is executed under the condition that the safety of the washing machine is ensured and the washing effect of the washing machine is not greatly changed, so that the normal washing operation of the washing machine is ensured.

[0054] In a third embodiment, the present application provides a washing machine water inlet control device, as shown in the accompanying drawings, comprising: Figure 3

[0055] The fault detection module 31 is configured to detect whether the sensor for detecting the water inlet amount of the washing machine is faulty when a preset water inlet instruction is received. The sensor for detecting the water inlet amount of the washing machine includes a liquid level sensor or a water level sensor or a flow meter. The preset water inlet instruction is any one of a water inlet instruction in a main washing stage and a water inlet instruction in a rinsing stage. Because the liquid level sensor or the water level sensor or the flow meter is only used in the main washing stage and the rinsing stage in the actual use of the washing machine, and the other stages such as flushing do not need to detect the water level because there is no certain water inlet amount.

[0056] It should be noted that if the sensor is faulty for the first time, the fault detection module 31 is further configured to send a fault prompt to the user, so that the user knows that the sensor of the washing machine is faulty.

[0057] The water inlet amount determination module 32 is configured to determine the water inlet amount required by the washing machine if the sensor is faulty. Specifically, the water inlet amount determination module 32 obtains the washing mode and the washing stage in which the current washing machine is located, and takes the preset water inlet amount corresponding to the washing stage in the washing mode as the water inlet amount required by the current washing machine. The general washing mode includes a standard washing mode and a quick washing mode, and the washing stage includes a main washing stage and a rinsing stage. The preset water inlet amount is different in different washing stages in the same washing mode. The preset water inlet amount is also different in the same washing stage in different washing modes.

[0058] The target water inlet time determination module 33 is configured to determine the target water inlet time of the water inlet valve of the washing machine according to the water inlet amount.

[0059] As an optional implementation manner of the embodiment of the present application, the target water inlet time determination module 33 obtains the preset water inlet time corresponding to the water inlet amount, and takes the preset water inlet time as the target water inlet time.

[0060] ​As another optional implementation of the embodiment of the application, the target water inlet time determination module 33 acquires the average opening time in the current washing program before the sensor fails and a preset water inlet time range corresponding to the water inlet amount, and the average opening time is the average of the opening times of the preset number of times before the sensor fails; if the average opening time is in the preset time range, the preset water inlet time is taken as the target water inlet time. If the average opening time is not in the preset time range, the average opening time is taken as the target water inlet time.

[0061] The water inlet valve control module 34 is configured to control the opening of the water inlet valve, and the opening time of the water inlet valve is the target water inlet time. In addition, the water inlet valve control module 34 is further configured to acquire the current water pressure in the water inlet valve and acquire the ratio of the current water pressure to the preset standard water pressure; when the water inlet valve is controlled to open, the opening time is the product of the target water inlet time and the ratio.

[0062] It should be noted that if the sensor is normal, the water inlet valve control module opens the water inlet valve and acquires the actual water level value detected by the sensor; if the actual water level value is equal to the preset water level value, the water inlet valve is controlled to close. The preset water level value is related to the washing mode and the washing stage. If the sensor is normal, the conventional water inlet mode is directly followed, that is, the water level is detected by the sensor, and whether the water level detected by the sensor reaches the preset water level is used to control the opening and closing of the water inlet valve.

[0063] The water inlet control device provided by the embodiment of the application comprises: a fault detection module, a water inlet amount determination module, a target water inlet time determination module and a water inlet valve control module. When a preset water inlet instruction is received, the fault detection module controls the washing machine to enter a special water inlet mode; if the sensor fails, the water inlet amount determination module determines the water inlet amount required by the washing machine; the target water inlet time determination module determines the target water inlet time of the water inlet valve of the washing machine according to the water inlet amount; and the water inlet valve control module controls the opening of the water inlet valve, and the opening time of the water inlet valve is the target water inlet time. The control device provided by the embodiment of the application first judges whether the sensor for detecting the water inlet amount of the washing machine fails after receiving the preset water inlet instruction, controls the opening of the water inlet valve when the sensor fails, and determines the target water inlet time of the water inlet valve according to the water inlet amount required by the washing machine, and controls the opening time of the water inlet valve to be the target water inlet time. When the sensor for detecting the water inlet amount of the washing machine fails, the application scheme does not directly stop, and the user can still use the washing machine for washing. At this time, the required water inlet amount is determined first, the target water inlet time is determined according to the water inlet amount, the water inlet valve is controlled to open, and the opening time is the target water inlet time. That is, when the sensor for detecting the water inlet amount fails, the application controls the water inlet amount by controlling the opening time of the water inlet valve, ensures the normal water inlet of the washing machine, and does not need to replace the mainboard, thereby reducing the cost.

[0064] In a fourth embodiment, the application provides a washing machine water inlet control system, comprising:

[0065] a processor;

[0066] a memory for storing processor-executable instructions;

[0067] The processor is configured to execute the water filling control method of the first or second embodiment.

[0068] The water filling control system of the washing machine provided by the embodiment of the application stores the executable instructions of the processor in the memory, and when the processor executes the executable instructions, the washing machine can enter a special water filling mode when a sensor for detecting the water filling amount of the washing machine is detected to be faulty, without being directly stopped, and the user can still use the washing machine for washing; after entering the special water filling mode, if a water filling instruction is received, the required water filling amount is first determined, then the target water filling time of the water filling valve is determined according to the water filling amount, and finally the water filling valve is controlled to be opened, and the opening time is the target water filling time. That is, the application controls the water filling amount by controlling the opening time of the water filling valve, so that the washing machine can normally fill water even if the sensor for detecting the water filling amount is faulty, without replacing the mainboard, and the cost is reduced.

[0069] In the fifth embodiment, the application provides a washing machine applying the water filling control method of the first or second embodiment.

[0070] The washing machine provided by the embodiment of the application first judges whether the sensor for detecting the water filling amount of the washing machine is faulty after receiving a preset water filling instruction, controls the water filling valve to be opened when the sensor is faulty, and determines the target water filling time of the water filling valve according to the required water filling amount of the washing machine, so that the opening time of the water filling valve is the target water filling time. The application does not directly stop when the sensor for detecting the water filling amount of the washing machine is detected to be faulty, and the user can still use the washing machine for washing; at this time, the required water filling amount is first determined, the target water filling time is determined according to the water filling amount, the water filling valve is controlled to be opened, and the opening time is the target water filling time. That is, the application controls the water filling amount by controlling the opening time of the water filling valve when the sensor for detecting the water filling amount is faulty, so that the washing machine can normally fill water, without replacing the mainboard, and the cost is reduced.

[0071] It can be understood that the same or similar parts in the above-mentioned embodiments can be mutually referred to, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0072] It should be noted that, in the description of the application, the terms “first”, “second”, etc. are only used for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the application, unless otherwise specified, the meaning of “a plurality of” is at least two.

[0073] Any processes or methods described in the flowcharts or elsewhere in this specification can be understood as representing one or more modules, segments, or portions of code that includes executable instructions for performing specific logical functions or steps, and the various embodiments of the application can include additional or fewer steps performing the same or equivalent functions in the same or equivalent order as those described and shown in the figures. The various embodiments of the application can be implemented in software, hardware, firmware, or a combination thereof.

[0074] It should be understood that portions of the application can be implemented in hardware, software, firmware, or combinations thereof. In the above embodiments, the various steps or methods can be implemented in software or firmware that is stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any of the following technologies, or combinations thereof, can be used: a discrete logic circuit having logic gates for implementing logic functions upon data signals, an application specific integrated circuit having appropriate combinational logic gates, a programmable gate array (PGA), a field programmable gate array (FPGA), or the like.

[0075] Those skilled in the art can understand that all or part of the steps carried out by the above-mentioned embodiment method can be completed by programs instructing related hardware, and the programs can be stored in a computer readable storage medium, and when the programs are executed, one or a combination of the steps of the method embodiment is included.

[0076] In addition, each functional unit in each embodiment of the present application can be integrated into one processing module, or each unit can be physically present separately, or two or more units can be integrated into one module. The above-mentioned integrated module can be realized in the form of hardware or in the form of a software function module. The integrated module, if realized in the form of a software function module and sold or used as an independent product, can also be stored in a computer readable storage medium.

[0077] The above-mentioned storage medium can be a read-only memory, a magnetic disk or an optical disk, etc.

[0078] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0079] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that changes, modifications, substitutions and variations can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. A method for controlling water inlet of a washing machine, characterized in that: The following steps are involved: When a preset water inlet instruction is received, detecting whether a sensor for detecting the water inlet amount of the washing machine is faulty; If the sensor fails, determining the amount of water required by the washing machine; Determining a target water inlet time of the water inlet valve of the washing machine according to the water inlet volume includes: obtaining an average opening time of the sensor under a current washing program before a failure of the sensor occurs and a preset water inlet time range corresponding to the water inlet volume, wherein the average opening time is an average of opening times of a preset number of times before the failure of the sensor occurs; if the average opening time is within the preset water inlet time range, using the preset water inlet time as the target water inlet time; if the average opening time is not within the preset water inlet time range, using the average opening time as the target water inlet time; The water inlet valve is controlled to open, and the opening time of the water inlet valve is the target water inlet time.

2. The method according to claim 1, characterized in that Also includes: If the sensor is normal, open the water inlet valve and obtain the actual water level value detected by the sensor; If the actual water level value is equal to the preset water level value, the water inlet valve is controlled to close.

3. The method according to claim 1, wherein: Determining the amount of water intake required by the washing machine includes: Get the current washing mode and washing stage of the washing machine; The preset water intake corresponding to the washing stage in the washing mode is used as the water intake required by the current washing machine.

4. The method according to claim 1, wherein Also includes: If the sensor fails for the first time, a fault prompt is sent to the user.

5. The method according to claim 1, wherein: The preset water inlet instruction is any one of the water inlet instruction for the main wash stage and the water inlet instruction for the rinsing stage.

6. The method according to claim 1, characterized in that Also includes: Obtaining the current water pressure in the water inlet valve, and obtaining the ratio of the current water pressure to a preset standard water pressure; When the water inlet valve is controlled to open, the opening time of the water inlet valve is the product of the target water inlet time and the ratio.

7. A washing machine, characterized in that: The method according to any one of claims 1 to 6 is used.

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