Control method for adjusting washing ratio of washing machine and washing machine

Abstract

The application discloses a control method for adjusting washing ratio of a washing machine and the washing machine. The control method comprises the following steps: detecting the water temperature in the washing machine when the washing machine executes a washing program; calculating the slope of the water temperature in the washing machine changing with time when it is determined that the washing machine is abnormally heated; and adjusting the washing action of the washing machine according to the slope to adjust the washing ratio of the washing machine. Compared with the prior art, the application can improve the washing capacity of the washing machine, ensure that clothes are washed clean, save the cost of after-sales maintenance and replacement of spare parts of the user, and ensure the washing ratio of the washing machine by executing different washing actions when the water heating device of the washing machine is slow or cannot heat.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical appliances, and in particular to a control method for adjusting the washing ratio of a washing machine and a washing machine. BACKGROUND

[0002] With the development of intelligent washing machines, washing machines are becoming more and more indispensable intelligent devices in life. One of the functions of the water heater of a washing machine is to improve the washing ratio of the washing machine. Under other same conditions, the washing ability of the washing machine for clothes is greatly improved when the water temperature in the drum is 40℃ compared to when the water temperature in the drum is 20℃. When the water heater of the washing machine heats the water in the drum too slowly or the washing machine cannot heat the water in the washing drum, the washing ability of the washing machine is relatively reduced.

[0003] However, in remote places or places where maintenance is not convenient, when the water heater of the washing machine is abnormal, it is relatively difficult to maintain, and the cost of on-site maintenance by a general technician is relatively high. Many users do not want to maintain and continue to use it. Therefore, it is very important to design a washing machine that can still guarantee the washing ratio of the washing machine when the water heater of the washing machine heats the water in the drum too slowly or the washing machine cannot heat the water in the washing drum.

[0004] Therefore, how to design a control method for adjusting the washing ratio of a washing machine and a washing machine that can improve the washing ratio of the washing machine when the water heater is abnormal is a technical problem to be solved in the industry. SUMMARY

[0005] In view of the problem that the washing ratio of a washing machine is low when the water heater of the washing machine is abnormal in the prior art, the present application provides a control method for adjusting the washing ratio of a washing machine and a washing machine.

[0006] The technical scheme of the present application provides a control method for adjusting the washing ratio of a washing machine, comprising:

[0007] detecting the water temperature in the washing machine when the washing machine performs a washing program;

[0008] calculating the slope of the change of the water temperature in the washing machine with time when it is determined that the washing machine is heating abnormally;

[0009] adjusting the washing action of the washing machine according to the slope to adjust the washing ratio of the washing machine.

[0010] Further, determining that the washing machine is heating abnormally comprises:

[0011] recording the water temperature in the washing machine every preset time;

[0012] calculating the change of the water temperature in each of the preset times;

[0013] determining whether the water temperature change amount is less than a change amount threshold value;

[0014] if yes, determining that the washing machine is heating abnormally.

[0015] Further, determining that the washing machine is heating abnormally further comprises:

[0016] after determining that the water temperature change amount is less than the change amount threshold value, recording a water temperature abnormality;

[0017] acquiring a number of times of the water temperature abnormality within a threshold time;

[0018] determining whether the number of times of the water temperature abnormality is greater than a preset number of times, and if yes, determining that the washing machine is heating abnormally.

[0019] Further, adjusting a washing action of the washing machine according to the slope comprises:

[0020] previously setting a first corresponding relationship between the slope and the washing action;

[0021] determining the washing action of the washing machine at a current slope according to the first corresponding relationship;

[0022] performing the washing action.

[0023] Further, previously setting a first corresponding relationship between the slope and the washing action comprises:

[0024] when the slope is in a first preset interval, the washing action is adjusting a washing time of a main washing program;

[0025] when the slope is in a second preset interval, the washing action is adjusting the washing time of the main washing program and simultaneously adjusting a rotation-to-stop ratio during washing of the washing machine;

[0026] when the slope is in a third preset interval, the washing action is adjusting an amount of detergent, a rinsing water level, a time of the main washing program, a time of a rinsing program, and a number of rinsing times;

[0027] when the slope is in a fourth preset interval, the washing action is adjusting the amount of detergent, the rinsing water level, the time of the main washing program, the time of the rinsing program, a dehydration rotation speed, the rotation-to-stop ratio during washing, and the number of rinsing times.

[0028] Further, the first preset interval is (K1, ∞), the second preset interval is (K2, K1], the third preset interval is (K3, K2], and the fourth preset interval is (0, K3];

[0029] Wherein, K1 is in the range of (2, 6), K2 is in the range of (1.8, 2), and K3 is in the range of (1.4, 1.8).

[0030] Further, the washing action of the washing machine is performed according to the slope, and the method further comprises:

[0031] A second corresponding relationship between the slope difference and the washing action is preset.

[0032] A plurality of slopes of water temperature of the washing machine changing with time are obtained, and a slope difference between any two slopes is calculated.

[0033] The washing action corresponding to the current slope difference is determined according to the second corresponding relationship.

[0034] The washing action is performed.

[0035] Further, the second corresponding relationship between the slope difference and the washing action is set, and the method further comprises:

[0036] When the slope difference is in a fifth preset interval, the washing action is adjusting a washing time of a main washing program and simultaneously adjusting a rotation-to-stop ratio during washing of the washing machine.

[0037] When the slope difference is in a sixth preset interval, the washing action is adjusting an amount of detergent, a rinsing water level, a time of the main washing program, and a time of a rinsing program.

[0038] When the slope difference is in a seventh preset interval, the washing action is adjusting the amount of detergent, the rinsing water level, the time of the main washing program, the time of the rinsing program, a dehydration rotation speed, and the rotation-to-stop ratio during washing.

[0039] Further, before detecting the water temperature in the washing machine, the method further comprises:

[0040] It is detected whether the washing machine is starting a heating program.

[0041] If yes, the water temperature in the washing machine is detected.

[0042] If no, a washing program of the washing machine is directly started.

[0043] The present application also provides a washing machine adopting the control method.

[0044] Compared with the prior art, the present application has at least the following beneficial effects:

[0045] The present application can improve the washing capacity of the washing machine and ensure the user to wash clean by executing different washing actions when the water heating device of the washing machine is slow or unable to heat, and the user can ensure the washing ratio of the washing machine without repairing or replacing the water heater, and the cost of after-sales maintenance and replacement of spare parts of the washing machine is saved. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0047] Figure 1 The flow chart for judging the heating abnormality of the washing machine according to the present application;

[0048] Figure 2 The working flow chart of the washing action according to the present application;

[0049] Figure 3 The working flow chart of the washing action according to another embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0051] Therefore, one feature indicated in the specification will be used to explain one feature of one embodiment of the present application, and it is not implied that each embodiment of the present application must have the explained feature. In addition, it should be noted that the specification describes many features. Although some features can be combined together to show possible system designs, these features can also be used in other combinations which are not explicitly described. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0052] The principles and structures of the present application will be described in detail below in combination with the drawings and embodiments.

[0053] One of the functions of the water heater of the washing machine is to improve the washing ratio of the washing machine. Under the same conditions, the water temperature in the drum is 40 DEG C, compared with the case that the water temperature in the drum is 20 DEG C, the washing machine has a great improvement in the stain removal ability. When the water heater is abnormal and causes slow heating or cannot heat, the washing ratio of the washing machine is affected. The idea of the present application is that when the heating abnormality of the washing machine is detected, different washing actions are performed according to the speed of the water temperature rise in the washing machine, so as to improve the washing ratio of the washing machine, and the same washing effect as when the water heater works normally is achieved.

[0054] Specifically, the control method for adjusting the washing ratio of the washing machine comprises the following steps.

[0055] When the washing machine performs the washing program, the water temperature in the washing machine is detected.

[0056] When it is determined that the heating of the washing machine is abnormal, the slope of the water temperature change in the washing machine with time is calculated.

[0057] The washing action of the washing machine is adjusted according to the slope to adjust the washing ratio of the washing machine.

[0058] The control method mainly aims at the problem that the washing ratio of the washing machine is low when the water heater is abnormal. Therefore, the water temperature in the washing machine needs to be detected before the washing action of the washing machine is adjusted, and only when it is determined that the heating of the washing machine is abnormal, the washing strengthening program (i.e. the process of adjusting the washing action of the washing machine to improve the washing ratio) is performed. In addition, not all clothes need to be heated by the water heater before being washed. Therefore, before the water temperature of the washing machine is detected in the present application, the following steps are further included.

[0059] It is detected whether the heating program of the washing machine is started.

[0060] If yes, the water temperature in the washing machine is detected.

[0061] If no, the washing program of the washing machine is directly started.

[0062] The step is mainly used to distinguish whether the clothes need to be heated and washed. If the clothes do not need to be heated and washed, the clothes can be washed at room temperature. Therefore, it is unnecessary to start the water heater of the washing machine and determine whether the heating of the washing machine is abnormal. Therefore, the present application only performs the subsequent actions after it is detected that the heating program of the washing machine is started. By performing the action before the water temperature in the washing machine is detected, a series of unnecessary programs can be avoided, and the electric energy can be saved.

[0063] When it is determined that the washing machine starts the heating program, it is further needed to determine whether the water heater in the washing machine is abnormal, if the water heater can normally operate, the water in the washing machine can be directly heated by the water heater, so as to improve the cleaning ratio, and subsequent actions are not needed. In the present application, the change amount of the water temperature in the washing machine in a unit time after the heating program is started (i.e. after the water heater is operated) is used to determine whether the washing machine is abnormal in heating, which specifically includes:

[0064] The water temperature in the washing machine is recorded every preset time;

[0065] The change amount of the water temperature in each preset time is calculated;

[0066] It is determined whether the change amount of the water temperature is less than the change amount threshold value;

[0067] If yes, it is determined that the washing machine is abnormal in heating.

[0068] Here, the change amount threshold value is set according to the temperature that the water heater can raise the water in the washing machine in a preset time at the minimum power, if the water heater in the washing machine is normal, when the change amount of the water temperature is detected, the result should be almost all higher than the change amount threshold value, therefore, when the change amount of the water temperature is detected to be less than the change amount threshold value, it can be determined that the water heater in the washing machine is abnormal.

[0069] Further, in order to avoid errors in the determination of the abnormality of the water heater, the present application measures multiple times in a threshold time, so as to improve the accuracy of the determination. Here, the threshold time is designed according to the preset time when the water temperature is collected, which needs to at least ensure that multiple water temperature collection actions can be performed, in the present application, the preset time can be set to 15s, and the threshold time can be set to 5min, so that 20 groups of water temperature data can be collected in the threshold time, so as to improve the reliability of the determination of the abnormality of the water heater. The specific operation is:

[0070] After it is determined that the change amount of the water temperature is less than the change amount threshold value, the water temperature abnormality is recorded once;

[0071] The number of times of the water temperature abnormality in the threshold time is obtained;

[0072] It is determined whether the number of times of the water temperature abnormality is greater than a preset number of times, if yes, it is determined that the washing machine is abnormal in heating.

[0073] In the operation of the water heater of the washing machine, the heating effect can be affected by power grid fluctuation, therefore, in the present application, the number of water temperature abnormality is detected to determine whether the washing machine is abnormal, which can greatly improve the accuracy of abnormality determination. For the above setting, when there are 20 groups of collected water temperature data, only 1 group or 2 groups of data have water temperature change less than the change threshold, it can be considered that it is caused by power grid fluctuation or the like, if there are multiple groups of data, such as 10 groups or more of data, the water temperature change is less than the change threshold, it can be determined that the water heater of the washing machine is abnormal. In the present application, the preset number of times is 3, and when there are 3 or more water temperature abnormalities within the threshold time, the water heater is reported to be abnormal.

[0074] Please refer to Figure 1 which is the overall flowchart of heating abnormality determination, wherein t is the preset time, for the convenience of understanding, each detected water temperature is recorded as W1, W2, W1, W2, …, W2-W1 represents the water temperature change (here, the water temperature change is calculated as W2-W1, which only calculates the difference between adjacent two data, and only takes the absolute value, such as 2t-3t time period, the water temperature recorded at 3t time is W1, but W2-W1 is still used to calculate the water temperature change in this time period, since the obtained data is the water temperature change, the absolute value is taken here), n is the number of water temperature abnormalities, W is the change threshold, when the water temperature change is less than the change threshold each time, n will be increased by 1, when n is greater than 3, it is determined that the water heater is abnormal, and the washing strengthening program is executed. In the present application, the value range of the change threshold is 0-20 degrees Celsius, and the preferred value is 5 degrees Celsius, the value range of the threshold time is 10-300 seconds, and the preferred value is 60 seconds.

[0075] Among them, the abnormal situation of the water heater can be divided into many kinds, in some cases, although the water heater heats slowly, it does not lose the heating function, in this case, the washing machine still has good washing ratio, only needs to be simply improved to meet the use requirement, there are also some cases where the water heater is completely faulty and loses the heating function, at this time, the washing ratio needs to be greatly improved to meet the use requirement. In the present application, the slope of the change of the water temperature in the washing machine with time is used to determine the fault condition of the water heater, and corresponding washing action is executed according to the fault condition, so as to adjust the washing ratio of the washing machine to meet the use requirement. Here, the higher the slope, the faster the water temperature in the washing machine rises, the working state of the water heater is closer to normal, and the washing ratio needs to be improved is lower.

[0076] Therefore, after starting the washing reinforcing program, the slope of the water temperature changing with time is also needed to be calculated, which can directly use the water temperature data detected in the previous water heater abnormality judgment, since the interval time between each detection is the same, thus the ratio between the adjacent two water temperature data can be directly used to reflect the slope, the larger the ratio is, the larger the corresponding slope is.

[0077] wherein the washing action of the washing machine is adjusted according to the slope, including:

[0078] a first corresponding relationship between the slope and the washing action is preset;

[0079] the washing action of the washing machine under the current slope is determined according to the first corresponding relationship;

[0080] the washing action is executed.

[0081] Further, the first corresponding relationship indicated in the present application is:

[0082] when the slope is in a first preset interval, the washing action is adjusting the washing time of the main washing program;

[0083] when the slope is in a second preset interval, the washing action is adjusting the washing time of the main washing program and simultaneously adjusting the rotation-to-stop ratio during washing of the washing machine;

[0084] when the slope is in a third preset interval, the washing action is adjusting the amount of detergent, the rinsing water level, the time of the main washing program, the time of the rinsing program, and the rinsing frequency;

[0085] when the slope is in a fourth preset interval, the washing action is adjusting the amount of detergent, the rinsing water level, the time of the main washing program, the time of the rinsing program, the dehydration rotation speed, the rotation-to-stop ratio during washing, and the rinsing frequency.

[0086] Here, the first preset interval is (K1, ∞), the second preset interval is (K2, K1], the third preset interval is (K3, K2], and the fourth preset interval is (0, K3].

[0087] Please refer to Figure 2 After the slope K is calculated, it is first judged whether the slope K is greater than K1, when the judgment is yes, it indicates that the slope K is in the first preset interval (K1, ∞), in this case, the washing time of the main washing program needs to be adjusted. Specifically, the washing time of the main washing program is extended by t1 min under this action, the time t1 ranges from 10 min to 150 min, preferably 10 min, K1 ranges from 2 to 6, preferably 3;

[0088] When the slope K is determined to be less than K1 and the slope K is determined to be greater than K2, it indicates that the slope K is in the second preset interval (K2, K1], in which case the washing time of the main washing program needs to be adjusted, and the rotation-stop ratio of the washing machine during washing is also adjusted. Specifically, the washing time of the main washing program is extended by t2 min in this action, the time t2 ranges from 10 min to 150 min, preferably 20 min, the rotation-stop ratio is raised to L1 rotation speed, and n1 seconds of rotation and m1 seconds of stop, the rotation speed L1 ranges from 40 rpm to 60 rpm, preferably 55 rpm, the rotation time n1 ranges from 10 s to 120 s, preferably 25 s, and the stop time m1 ranges from 2 s to 60 s, preferably 5 s;

[0089] When the slope K is determined to be less than K2 and the slope K is determined to be greater than K3, it indicates that the slope K is in the third preset interval (K3, K2], in which case the amount of detergent, the rinse water level, the time of the main washing program, the time of the rinsing program, and the number of rinsing need to be adjusted. Specifically, the washing time of the main washing program is extended by t3 in this action, the time t3 ranges from 10 min to 150 min, preferably 30 min, the washing time of the rinsing program is extended by t4, the time t4 ranges from 1 min to 20 min, preferably 5 min, the amount of detergent is increased by a% of the original amount, a% ranges from 10% to 80%, preferably 50%, the rinse water level is raised by one level, and the number of rinsing is increased by 1.

[0090] When the slope K is determined to be less than K3, it indicates that the slope K is in the fourth preset interval (0, K3], in which case the amount of detergent, the rinse water level, the time of the main washing program, the time of the rinsing program, the dehydration rotation speed, the rotation-stop ratio during washing, and the number of rinsing need to be adjusted. Specifically, the washing time of the main washing program is extended by t5 in this action, the time t5 ranges from 10 min to 150 min, preferably 50 min, the washing time of the rinsing program is extended by t6, the time t4 ranges from 1 min to 20 min, preferably 8 min, the amount of detergent is increased by b% of the original amount, b% ranges from 50% to 200%, preferably 100%, the rotation-stop ratio is raised to L2 rotation speed, and n2 seconds of rotation and m2 seconds of stop, the rotation speed L2 ranges from 40 rpm to 70 rpm, preferably 60 rpm, the rotation time n2 ranges from 10 s to 120 s, preferably 55 s, the stop time m2 ranges from 2 s to 60 s, preferably 5 s, the rinse water level is raised by two levels, and the number of rinsing is increased by 2.

[0091] After the above washing actions are performed according to different slopes in the present application, the washing ratio of the washing machine is improved under different abnormal states of the water heater, and the same use effect as that under the normal state of the water heater can be achieved without maintenance.

[0092] Further, since the interval time between each temperature collection is the same, the difference between the slopes of the two adjacent temperature collections or the difference between the slopes can also be used to replace the slope to perform the above procedure, and the same use effect can be achieved. For the scheme using the difference between the slopes, it includes:

[0093] pre-setting a second correspondence relationship between the slope difference and the washing action;

[0094] obtaining the slopes of the water temperature of the washing machine changing with time in multiple groups, and calculating the slope difference between any two slopes;

[0095] determining the washing action under the current slope difference according to the second correspondence relationship;

[0096] performing the washing action.

[0097] In the case where the abnormal situation of the water heater does not change, the slope of the water temperature change will not have a large fluctuation, and thus the slope difference between any two slopes can be used for judgment. In this embodiment, the second correspondence relationship is:

[0098] when the slope difference is in the fifth preset interval, the washing action is adjusting the washing time of the main washing program and simultaneously adjusting the rotation-to-stop ratio during washing of the washing machine;

[0099] when the slope difference is in the sixth preset interval, the washing action is adjusting the amount of detergent, the rinsing water level, the time of the main washing program, and the time of the rinsing program;

[0100] when the slope difference is in the seventh preset interval, the washing action is adjusting the amount of detergent, the rinsing water level, the time of the main washing program, the time of the rinsing program, the dehydration rotation speed, and the rotation-to-stop ratio during washing.

[0101] Please refer to Figure 3 which takes three groups of data as an example, K1, K2, and K3 are the slopes under three times of water temperature collection, K1-K2, K1-K3, and K3-K2 are the slope differences between any two slopes, when it is determined that the slope difference is greater than K4, it indicates that the slope difference is in the fifth preset interval (K4, ∞), and the washing time of the main washing program needs to be adjusted, and simultaneously the rotation-to-stop ratio during washing of the washing machine needs to be adjusted;

[0102] when it is determined that the slope difference is greater than K5 and less than K4, it indicates that the slope difference is in the sixth preset interval (K5, K4], and the amount of detergent, the rinsing water level, the time of the main washing program, and the time of the rinsing program need to be adjusted;

[0103] when it is determined that the slope difference is less than K5, it indicates that the slope difference is in the seventh preset interval (0, K5], and the amount of detergent, the rinsing water level, the time of the main washing program, the time of the rinsing program, the dehydration rotation speed, and the rotation-to-stop ratio during washing need to be adjusted.

[0104] Since the parameters will change due to the use of different washing machines, the specific data under each operation is not given in this embodiment, and the specific data can be adjusted according to the actual application. It should be noted that, Figure 2 The parameters given in each action in the embodiment are only the parameters in a preferred embodiment of the application, and can be adjusted according to the actual situation.

[0105] The application can achieve the same effect as using slope adjustment by using slope difference to perform different washing actions. Through the above control method, the same use effect as in the normal case of the water heater can be achieved without maintenance.

[0106] The application also proposes a washing machine using the above control method.

[0107] Compared with the prior art, the application can improve the washing capacity of the washing machine during washing by performing different washing actions when the water heating device of the washing machine is slow or unable to heat, and ensure that the user can wash clean. The user can ensure the washing ratio of the washing machine without repairing or replacing the water heater, saving the cost of after-sales door-to-door maintenance and replacement of parts of the washing machine.

[0108] The above is only a preferred embodiment of the application and is not intended to limit the application. Any modification, equivalent replacement and improvement within the spirit and principles of the application should be included in the protection scope of the application.

Claims

1. A control method for adjusting the wash ratio of a washing machine, characterized in that, Comprising: detecting water temperature in the washing machine when the washing machine performs a washing program; calculating a slope of the water temperature in the washing machine changing with time when it is determined that the washing machine heats abnormally; adjusting a washing action of the washing machine according to the slope to adjust a washing ratio of the washing machine; adjusting a washing action of the washing machine according to the slope, comprising: previously setting a first corresponding relationship between the slope and the washing action; determining the washing action of the washing machine under the current slope according to the first corresponding relationship; performing the washing action.

2. The control method according to claim 1, characterized by, determining that the washing machine heats abnormally, comprising: recording the water temperature in the washing machine once every preset time; calculating a water temperature change amount in each of the preset times; judging whether the water temperature change amount is less than a change amount threshold value; if yes, determining that the washing machine heats abnormally.

3. The control method according to claim 2, characterized by, determining that the washing machine heats abnormally, further comprising: recording a water temperature anomaly once after it is determined that the water temperature change amount is less than the change amount threshold value; acquiring a number of times of the water temperature anomaly in a threshold time; judging whether the number of times of the water temperature anomaly is greater than a preset number of times, if yes, determining that the washing machine heats abnormally.

4. The control method according to claim 1, characterized by, previously setting a first corresponding relationship between the slope and the washing action, comprising: when the slope is in a first preset interval, the washing action is to adjust a washing time of a main washing program; when the slope is in a second preset interval, the washing action is to adjust the washing time of the main washing program and simultaneously adjust a rotation-stop ratio of the washing machine during washing; when the slope is in a third preset interval, the washing action is to adjust an amount of detergent, a rinsing water level, a time of the main washing program, a time of a rinsing program, and a number of rinsing times; when the slope is in a fourth preset interval, the washing action is to adjust the amount of detergent, the rinsing water level, the time of the main washing program, the time of the rinsing program, a dehydration rotation speed, the rotation-stop ratio during washing, and the number of rinsing times.

5. The control method according to claim 4, characterized by, The first preset interval is (K1, ∞), the second preset interval is (K2, K1], the third preset interval is (K3, K2], and the fourth preset interval is (0, K3]; wherein, K1 is in a range of (2, 6), K2 is in a range of (1.8, 2), and K3 is in a range of (1.4, 1.8).

6. The control method according to claim 1, characterized by adjusting a washing action of the washing machine according to the slope, further comprising: previously setting a second corresponding relationship between a slope difference and the washing action; acquiring a plurality of slopes of the water temperature in the washing machine changing with time, and calculating a slope difference between any two slopes; determining a washing action under a current slope difference according to the second corresponding relationship; performing the washing action.

7. The control method according to claim 6, characterized by setting a second corresponding relationship between the slope difference and the washing action, comprising: when the slope difference is in a fifth preset interval, the washing action is to adjust a washing time of a main washing program and simultaneously adjust a rotation-stop ratio of the washing machine during washing; when the slope difference is in a sixth preset interval, the washing action is to adjust an amount of detergent, a rinsing water level, a time of the main washing program, and a time of a rinsing program. When the slope difference is in a seventh preset interval, the washing action is adjusting an amount of detergent, a rinse water level, a time of a main washing program, a time of a rinsing program, a dehydration rotation speed, and a rotation stop ratio during washing.

8. The control method according to claim 1, characterized by, Before detecting the water temperature in the washing machine, further comprising: detecting whether the washing machine starts a heating program; if yes, detecting the water temperature in the washing machine; if no, directly starting a washing program of the washing machine.

9. A laundry machine characterised in that, The washing machine adopts the control method according to any one of claims 1 to 8.

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