Air conditioner control method, air conditioner, and storage medium

Abstract

The present application discloses an air conditioner control method, an air conditioner, and a storage medium. The method comprises: acquiring the current power setting parameters of an air conditioner to obtain a first power setting parameter; determining a target control strategy for a compressor of the air conditioner on the basis of the first power setting parameter; and on the basis of the target control strategy, controlling the compressor to operate, so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter.

Description

Air conditioner control methods, air conditioners and storage media

[0001] This application claims priority to Chinese patent application No. 202411206738.3, filed on August 29, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of air conditioning technology, and in particular to control methods for air conditioners, air conditioners, and storage media. Background Technology

[0003] In the energy-saving control of air conditioners, the operating frequency of the compressor is usually limited according to a pre-set control strategy to avoid excessive compressor operation and thus achieve energy saving.

[0004] However, this pre-set control strategy remains fixed in all scenarios and may not match the user's actual needs, resulting in unnecessary restrictions on the cooling or heating output of the air conditioner and affecting indoor comfort. Technical issues

[0005] The main objective of this application is to provide a control method for an air conditioner, an air conditioner, and a storage medium, which aims to improve the matching degree between the energy-saving effect of the air conditioner and user needs, ensuring energy-saving effect while improving indoor comfort. Technical solutions

[0006] To achieve the above objectives, this application proposes a control method for an air conditioner, the method comprising:

[0007] Obtain the current power setting parameters of the air conditioner and obtain the first power setting parameters;

[0008] The target control strategy for the air conditioner's compressor is determined based on the first power setting parameters;

[0009] The compressor is controlled to operate according to the target control strategy so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter.

[0010] In some embodiments, the step of determining the target control strategy for the air conditioner's compressor based on the first power setting parameter includes:

[0011] Based on the first power setting parameters, at least two current ranges and the compressor control mode corresponding to each current range are determined. The target control strategy includes the at least two current ranges and the compressor control mode corresponding to each current range.

[0012] In some embodiments, the step of controlling the compressor operation according to the target control strategy includes:

[0013] Detect the current total current of the air conditioner;

[0014] The compressor control mode corresponding to the current range in which the overall machine current is located is determined as the reference control mode, and the compressor is controlled to operate according to the reference control mode.

[0015] In some embodiments, prior to the step of controlling the compressor operation according to the reference control method, the method further includes:

[0016] Obtain the ambient temperature of the indoor space regulated by the air conditioner;

[0017] The frequency control method of the compressor is determined based on the ambient temperature and the set temperature of the air conditioner.

[0018] The step of controlling the compressor operation according to the reference control method includes:

[0019] The compressor is controlled to operate according to the reference control method and the frequency control method.

[0020] In some embodiments, the step of controlling the compressor operation according to the reference control method and the frequency control method includes:

[0021] When there is a conflict between the reference control mode and the frequency control mode, the compressor is controlled to operate in the reference control mode;

[0022] When there is no conflict between the reference control mode and the frequency control mode, the compressor is controlled to operate in the frequency control mode.

[0023] In some embodiments, the second power setting parameter is defined as the power setting parameter of the air conditioner before the current moment, one of the at least two current ranges is the first current range, the compressor control mode corresponding to the first current range includes shutdown, and after the step of detecting the current total current of the air conditioner, the method further includes:

[0024] When the power represented by the first power setting parameter is less than the power represented by the second power setting parameter, and the overall current is within the first current range, the compressor is controlled to remain on and operate at a reduced frequency.

[0025] When the power represented by the first power setting parameter is less than the power represented by the second power setting parameter, and when the overall machine current is less than the current in the first current range, the step of determining the compressor control mode corresponding to the current range where the overall machine current is located as the reference control mode is executed, and controlling the compressor operation according to the reference control mode is performed.

[0026] In some embodiments, the at least two current ranges include a first current range, a second current range, a third current range, and a fourth current range. The compressor control method corresponding to the first current range includes shutdown, the compressor control method corresponding to the second current range includes frequency reduction, the compressor control method corresponding to the third current range includes maintaining the current frequency, and the compressor control method corresponding to the fourth current range includes frequency increase.

[0027] The current in the first current range is greater than the current in the second current range, the current in the second current range is greater than the current in the third current range, and the current in the third current range is greater than the current in the fourth current range.

[0028] In some embodiments, after the step of controlling the compressor to operate according to the target control strategy so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter, the method further includes:

[0029] The speed of the indoor fan of the air conditioner is adjusted according to the operating frequency of the compressor.

[0030] In some embodiments, after the step of controlling the compressor to operate according to the target control strategy so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter, the method further includes:

[0031] When the compressor operates under set conditions, the indoor fan is controlled to adjust its operating speed so that the indoor heat exchanger temperature of the air conditioner is maintained at the target heat exchanger temperature or the air outlet temperature of the air conditioner is maintained at the target air outlet temperature.

[0032] If the compressor operation does not meet the set conditions, the step of adjusting the speed of the indoor fan of the air conditioner according to the operating frequency of the compressor is performed.

[0033] The set conditions include the compressor frequency change value being less than a preset value and the duration being less than a preset duration.

[0034] In addition, to achieve the above objectives, this application also proposes an air conditioner, the air conditioner comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method for the air conditioner as described above.

[0035] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the air conditioner control method described above. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 is a structural schematic diagram of an embodiment of the air conditioner of this application;

[0039] Figure 2 is a schematic diagram of the hardware operating environment involved in the control method of the air conditioner in this application embodiment;

[0040] Figure 3 is a flowchart illustrating the control method for the air conditioner provided in Embodiment 1 of this application.

[0041] Figure 4 is a schematic diagram showing the correspondence between the current range and the compressor control mode involved in the embodiment of the control method of the air conditioner of this application;

[0042] Figure 5 is a flowchart illustrating the control method for the air conditioner provided in Embodiment 2 of this application.

[0043] Figure 6 is a schematic diagram showing the correspondence between the temperature difference value and the compressor frequency control method in the embodiment of the control method of the air conditioner of this application.

[0044] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Embodiments of the present invention

[0045] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0046] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0047] The main solution of this application embodiment is: to obtain the current power setting parameters of the air conditioner and obtain the first power setting parameters; to determine the target control strategy of the air conditioner's compressor based on the first power setting parameters; and to control the compressor to operate according to the target control strategy so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameters.

[0048] In some embodiments, for ease of description, the following description uses an air conditioner as the implementing entity.

[0049] Because the pre-set control strategies used in the energy-saving control of air conditioner compressors in existing technologies are fixed in any scenario, they may not match the actual needs of users, resulting in unnecessary restrictions on the cooling or heating output of the air conditioner and affecting indoor comfort.

[0050] This application provides the above-mentioned solution, in which the first power setting parameter can accurately reflect the user's energy-saving requirements for the air conditioner's output power. The first power setting parameter is used to determine the corresponding target control strategy to control the compressor operation, so that the power of the air conditioner will not exceed the power required by the user for energy saving. This can improve the matching degree between the energy-saving effect of the air conditioner and the user's needs, and can effectively reduce unnecessary restrictions on the output heat exchange of the air conditioner when using a fixed control strategy for energy saving control, thereby ensuring energy saving effect while improving indoor comfort.

[0051] This application provides an air conditioner. In some embodiments, the air conditioner is a floor-standing air conditioner. In other embodiments, the air conditioner may also be a wall-mounted air conditioner, a window air conditioner, a portable air conditioner, a ceiling-mounted air conditioner, a multi-split air conditioner, etc.

[0052] In some embodiments, referring to Figures 1 and 2, the air conditioner includes a compressor 1, a reversing assembly, an indoor heat exchanger 3, a throttling device, and an outdoor heat exchanger. An indoor fan 2 is correspondingly provided with the indoor heat exchanger 3. Both the indoor heat exchanger 3 and the indoor fan 2 are located in the indoor air duct of the air conditioner, which communicates with the indoor space. When the indoor fan 2 is turned on, it drives air from the indoor space into the indoor air duct to exchange heat with the indoor heat exchanger 3 before being sent into the indoor space.

[0053] The exhaust port of compressor 1, the return port of compressor 1, the indoor heat exchanger 3, and the outdoor heat exchanger are all connected to the reversing assembly. The reversing assembly has a first operating state and a second operating state. When the reversing assembly is in the first operating state, the exhaust port of compressor 1 is connected to the indoor heat exchanger 3, and the return port of compressor 1 is connected to the outdoor heat exchanger. When the reversing assembly is in the second operating state, the return port of compressor 1 is connected to the indoor heat exchanger 3, and the exhaust port of compressor 1 is connected to the outdoor heat exchanger. Based on this, the air conditioner's operating modes can include at least a cooling mode and a heating mode. In the cooling mode, the reversing assembly operates in the second operating state, and in the heating mode, the reversing assembly operates in the first operating state.

[0054] The air conditioner also includes an environmental detection module 01, which is located in the environment where the air conditioner is located to detect environmental parameters of the environment (such as at least one of ambient temperature, ambient humidity, and ambient enthalpy). In some embodiments, the environmental detection module 01 is located in the indoor space regulated by the air conditioner to detect the environmental parameters of the indoor environment, for example, the environmental detection module 01 is located at the return air vent of the indoor air duct.

[0055] The air conditioner also includes a first temperature sensor 02, which is located at the coil of the indoor heat exchanger 3 or the air outlet of the indoor air duct to detect the temperature of the indoor heat exchanger or the air outlet temperature.

[0056] The air conditioner also includes a control device 100, and the compressor 1, indoor fan 2, environmental detection module 01 and temperature sensor 02 mentioned above are all connected to the control device 100.

[0057] The control device 100 includes: at least one processor 1001; and a memory 1002 communicatively connected to the at least one processor 1001, and a timer 1003, etc.; wherein the memory 1002 stores instructions that can be executed by the at least one processor 1001, the instructions being executed by the at least one processor 1001 to enable the at least one processor 1001 to perform the air conditioner control method in the following embodiment.

[0058] Referring now to FIG2, a schematic diagram of a control device 100 suitable for implementing embodiments of this application is shown. The air conditioner in this application embodiment may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. The control device 100 shown in FIG2 is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0059] As shown in Figure 2, the control device 100 may include a processor 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in memory 1002. The program in memory 1002 may be a program in read-only memory (ROM) or a program loaded from a storage device into random access memory (RAM). The RAM also stores various programs and data required for the operation of the control device 100. The processor 1001 and memory 1002 (ROM and RAM) are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus. Typically, the following systems can be connected to the I / O interface: input devices including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices including, for example, magnetic tapes, hard disks, etc.; and communication devices. The communication device allows the control device 100 to communicate wirelessly or wiredly with other devices to exchange data. Although the control unit 100 with various systems is shown in the figure, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have alternatively.

[0060] Specifically, according to the embodiments disclosed in this application, the method flow described in the following embodiments can be implemented as a computer software program. For example, the embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from memory 1002. When the computer program is executed by processor 1001, it performs the functions defined in the control method of the air conditioner of the embodiments disclosed in this application.

[0061] The air conditioner provided in this application, employing the control method described in the following embodiments, solves the technical problem of how to improve the matching degree between the energy-saving effect of the air conditioner and user needs, ensuring energy-saving effect while improving indoor comfort. Compared with the prior art, the beneficial effects of the air conditioner provided in this application are the same as those of the control method provided in the following embodiments, and other technical features of this air conditioner are the same as those disclosed in the method of the following embodiments, and will not be repeated here.

[0062] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device or air conditioner capable of performing the above functions. The following description uses an air conditioner as an example to illustrate this embodiment and the subsequent embodiments.

[0063] Based on this, the present application provides a control method for an air conditioner. Referring to FIG3, FIG3 is a flowchart of an embodiment of the control method for an air conditioner of the present application.

[0064] In this embodiment, the control method of the air conditioner includes steps S10 to S30:

[0065] Step S10: Obtain the current power setting parameters of the air conditioner and obtain the first power setting parameters;

[0066] The power setting parameters are determined based on user input commands, and represent the maximum power output of the air conditioner required by the user.

[0067] In some embodiments, the power setting parameter includes a power level or a percentage of stepless power output. One implementation pre-divides the system into at least two preset levels, each associated with a different maximum power. For example, the at least two preset levels may include a minimum, a middle, and a maximum level, with the corresponding maximum power increasing sequentially. Based on this, the currently selected preset level can be obtained as the first power setting parameter, and the maximum power associated with this preset level is the maximum power the user requires the air conditioner to operate at. In another implementation, if the minimum allowable operating power of the air conditioner is defined as 1% and the maximum allowable operating power is defined as 100%, then the currently selected power percentage is obtained as the first power setting parameter, and the product of this power percentage and the maximum power is the maximum power the user requires the air conditioner to operate at.

[0068] In some embodiments, step S10 is performed when the power setting parameters of the air conditioner change.

[0069] Step S20: Determine the target control strategy for the air conditioner's compressor based on the first power setting parameters;

[0070] The target control strategy may include at least one of the following: the maximum frequency of the compressor, the correspondence between the compressor frequency and the actual state parameters (including at least one such parameter such as actual current, actual power, and set temperature) during the operation of the air conditioner, and the correspondence between the compressor frequency adjustment direction (increasing frequency, decreasing frequency, or maintaining the current frequency, etc.) and the actual state parameters (including at least one such parameter such as actual current, actual power, and set temperature) during the operation of the air conditioner.

[0071] Different first power setting parameters correspond to different target control strategies. In one implementation, different first power setting parameters correspond to different maximum frequencies, and the maximum frequency is positively correlated with the maximum power represented by the first power setting parameter. In another implementation, different first power setting parameters correspond to different relationships described above, and the compressor frequency corresponding to the same actual state parameter is positively correlated with the maximum frequency represented by the first power setting parameter.

[0072] Step S30: Control the compressor to operate according to the target control strategy so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter.

[0073] The target control strategy includes controlling the compressor to operate at a frequency less than or equal to the highest frequency when the highest frequency is reached.

[0074] When the target control strategy includes the correspondence between the compressor frequency and the actual state parameters during the operation of the air conditioner, the actual state parameters of the air conditioner can be detected, the reference frequency of the corresponding compressor can be determined based on the target control strategy, the target frequency of the compressor can be determined based on the reference frequency, and the compressor can be controlled to operate at the target frequency.

[0075] The target control strategy includes the correspondence between the compressor's frequency adjustment direction (increasing frequency, decreasing frequency, or maintaining the current frequency, etc.) and the actual state parameters during the operation of the air conditioner. It can detect the actual state parameters of the air conditioner, determine the corresponding reference adjustment direction of the compressor frequency based on the target control strategy, determine the target adjustment direction of the compressor based on the reference adjustment direction, and control the compressor to adjust its operating frequency according to the target adjustment direction.

[0076] When the air conditioner is equipped with other compressor control strategies, the compressor can be controlled in combination with the target control strategy and other compressor control strategies. It should be noted that regardless of whether the target control strategy is used alone or in combination with other compressor control strategies, the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter.

[0077] This embodiment provides a control method for an air conditioner. In this scheme, the first power setting parameter can accurately reflect the user's energy-saving requirements for the air conditioner's output power. The corresponding target control strategy is determined based on the first power setting parameter to control the compressor operation, so that the power of the air conditioner will not exceed the power required by the user for energy saving. This can improve the matching degree between the energy-saving effect of the air conditioner and the user's needs, and can effectively reduce unnecessary restrictions on the output heat exchange of the air conditioner when using a fixed control strategy for energy saving control, thereby ensuring energy saving effect while improving indoor comfort.

[0078] The step of determining the frequency control strategy of the air conditioner's compressor based on the first power setting parameter includes:

[0079] The target control strategy includes the control modes of the compressors corresponding to the at least two current ranges and each current range, as determined by the first power setting parameters.

[0080] In some embodiments, the step of determining the target control strategy for the air conditioner's compressor based on the first power setting parameter includes:

[0081] Based on the first power setting parameters, at least two current ranges and the compressor control mode corresponding to each current range are determined. The target control strategy includes the at least two current ranges and the compressor control mode corresponding to each current range.

[0082] The current range here refers to the range corresponding to the total current of the air conditioner.

[0083] Compressor control methods may include frequency increase, frequency decrease, maintaining the current frequency, or shutdown. Different current ranges correspond to different compressor control methods.

[0084] When the first power setting parameters are different, the compressor control methods corresponding to the same current range can be different, or the current ranges corresponding to the same compressor control methods can be different.

[0085] In some embodiments, referring to Figure 4, the at least two current ranges include a first current range (shutdown range), a second current range (frequency limiting range), a third current range (holding range), and a fourth current range (frequency increase range). The compressor control method corresponding to the first current range includes shutdown, the compressor control method corresponding to the second current range includes frequency reduction, the compressor control method corresponding to the third current range includes maintaining the current frequency, and the compressor control method corresponding to the fourth current range includes frequency increase. The current in the first current range is greater than the current in the second current range, the current in the second current range is greater than the current in the third current range, and the current in the third current range is greater than the current in the fourth current range. In some embodiments, the first, second, third, and fourth current ranges are continuous ranges. In other embodiments, the first, second, third, and fourth current ranges may also be discontinuous ranges.

[0086] In some embodiments, when the first power setting parameter is different, the first current range corresponding to the compressor control mode of shutdown is different, and the lower limit of the first current range is positively correlated with the maximum power represented by the first power setting parameter; when the first power setting parameter is different, the second current range corresponding to the compressor control mode of frequency reduction is different, and the lower limit and / or upper limit of the second current range is positively correlated with the maximum power represented by the first power setting parameter; when the first power setting parameter is different, the third current range corresponding to the compressor control mode of maintaining the current frequency is different, and the lower limit and / or upper limit of the third current range is positively correlated with the maximum power represented by the first power setting parameter; when the first power setting parameter is different, the fourth current range corresponding to the compressor control mode of frequency increase is different, and the upper limit of the fourth current range is positively correlated with the maximum power represented by the first power setting parameter.

[0087] Based on the obtained target control strategy, the step of controlling the compressor operation according to the target control strategy includes: detecting the current of the air conditioner; determining the compressor control mode corresponding to the current range where the total current is located as the reference control mode; and controlling the compressor operation according to the reference control mode.

[0088] The total current here refers to the total current of the air conditioner during operation.

[0089] For example, when the overall machine current is in the first current range, the reference control mode is determined to be compressor shutdown; when the overall machine current is in the second current range, the reference control mode is determined to be compressor frequency reduction; when the overall machine current is in the third current range, the reference control mode is determined to be compressor maintaining the current frequency; and when the overall machine current is in the fourth current range, the reference control mode is determined to be compressor frequency increase.

[0090] After obtaining the reference control mode, the compressor can be directly controlled to operate in the reference control mode; or the target control mode of the compressor can be determined by combining the reference control mode and the compressor control mode determined based on other compressor control strategies, and the compressor can be controlled to operate in the target control mode. Here, the power of the air conditioner corresponding to the target control mode is less than or equal to the maximum power represented by the first power setting parameter.

[0091] In some embodiments, the correspondence between the unit current and the compressor control mode is set according to the maximum power of the air conditioner to meet the user's needs, thereby ensuring precise control of the compressor frequency based on the unit current of the air conditioner, ensuring that the user's energy-saving needs are met while effectively improving the comfort of the indoor space regulated by the air conditioner.

[0092] In other embodiments, the target control strategy may also include at least two power ranges and compressor control methods corresponding to each power range. Based on this, the compressor operation can be controlled according to the compressor control method corresponding to the power range in which the actual power of the air conditioner is located.

[0093] In other embodiments, after obtaining the target control strategy, the target correspondence between operating parameters (such as indoor ambient temperature) and compressor frequency can also be determined according to the target control strategy. Different target control strategies correspond to different target correspondences. Based on the target correspondence, the target frequency of the compressor corresponding to the actual operating parameters of the air conditioner can be determined, and the compressor can be controlled to run at the target frequency.

[0094] In other embodiments, at least two current ranges may also include a first temperature range, a second temperature range, and a third temperature range, but not a fourth temperature range.

[0095] In some embodiments, the second power setting parameter is defined as the power setting parameter of the air conditioner before the current time. In this embodiment, the second power setting parameter is the power setting parameter of the air conditioner at a target time before the current time, and the interval between the target time and the current time is less than a preset time. One of the at least two current intervals is a first current interval. The compressor control mode corresponding to the first current interval includes shutdown. After the step of detecting the current total current of the air conditioner, the method further includes: when the power represented by the first power setting parameter is less than the power represented by the second power setting parameter, when the total current is in the first current interval, controlling the compressor to remain on and operate at a reduced frequency; when the power represented by the first power setting parameter is less than the power represented by the second power setting parameter, when the total current is less than the current in the first current interval, executing the compressor control mode corresponding to the current interval where the total current is located as a reference control mode.

[0096] The compressor is controlled to remain on and operate at a reduced frequency until a preset condition is met. In some embodiments, the preset condition includes the air conditioner's overall current reaching the third current range. Reaching the third current range means the overall current is within or below the third current range. In other embodiments, the preset condition may also include the air conditioner's overall power being less than the power represented by a first power setting parameter.

[0097] The compressor is kept running and its frequency is reduced until a preset condition is met. Then, the overall current is re-detected, and the compressor is controlled to run according to the reference control method corresponding to the overall current. Alternatively, the overall current and the ambient temperature of the indoor space are re-detected, and the compressor is controlled to run according to the reference control method corresponding to the overall current and the frequency control method corresponding to the ambient temperature.

[0098] The current of the whole machine that is less than the first current range may include the whole machine current in the second current range or the whole machine current in the third current range followed by the fourth current range.

[0099] During compressor frequency reduction operation, the frequency reduction parameters can be preset fixed parameters or determined according to the actual operating conditions of the air conditioner. In some embodiments, the frequency reduction rate can be determined based on the current difference between the total unit current and the lower limit current of the first current range, the power difference between the power represented by the first power setting parameter and the power represented by the second power setting parameter, and the temperature difference between the current indoor ambient temperature and the set temperature. The compressor is then controlled to operate at the frequency reduction rate until the total unit current is within the third current range.

[0100] In some embodiments, when the power of the air conditioner required by the user changes from high to low, if the total current of the air conditioner is within the shutdown current range corresponding to the power required after the switch, the compressor will not stop but will reduce its frequency to a safe range. This ensures energy saving while improving the stability of the air conditioner's operation and reducing unnecessary attenuation of the air conditioner's heat exchange, so as to effectively ensure indoor comfort.

[0101] In other embodiments, when the power represented by the first power setting parameter is less than the power represented by the second power setting parameter, the compressor can maintain its current frequency operation when the overall current is within the first current range, until the temperature difference between the indoor space temperature and the set temperature is less than the preset temperature difference. Then, the overall current is re-detected, and the compressor is controlled to operate according to the reference control method corresponding to the overall current. Alternatively, the overall current and the ambient temperature of the indoor space are re-detected, and the compressor is controlled to operate according to the reference control method corresponding to the overall current and the frequency control method corresponding to the ambient temperature.

[0102] Based on any of the above embodiments, in some embodiments, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. Based on this, referring to Figure 5, before the step of controlling the compressor operation according to the reference control method, steps S100 to S200 are further included:

[0103] Step S100: Obtain the ambient temperature of the indoor space regulated by the air conditioner;

[0104] In some embodiments, the ambient temperature includes the return air temperature detected by the aforementioned environmental detection module. In other embodiments, the ambient temperature may also include the temperature detected by the temperature detection module outside the indoor unit in the indoor space regulated by the air conditioner.

[0105] Step S200: Determine the frequency control mode of the compressor based on the ambient temperature and the set temperature of the air conditioner;

[0106] Frequency control methods may include frequency boosting, frequency downscaling, or maintaining the current frequency. When frequency control methods include frequency boosting or downscaling, the frequency control methods may also include corresponding frequency adjustment amplitudes, and so on.

[0107] In some embodiments, the temperature difference between the ambient temperature and the set temperature is determined, and the frequency control mode is determined based on the temperature difference. For example, the relationship between the temperature difference and the frequency control mode when the air conditioner is heating and cooling is shown in Figure 6, where "+" indicates frequency increase, "-" indicates frequency decrease, "0" indicates maintaining the current frequency, T1 represents the ambient temperature, and TS represents the set temperature.

[0108] The order of steps S100 and S200 with the aforementioned steps S10 and S20, the step of detecting the current overall current of the air conditioner, and the step of determining the compressor control mode corresponding to the current range where the overall current is located as the reference control mode, is not specifically limited. In one implementation, the overall current of the air conditioner is detected after the frequency control mode is obtained.

[0109] After obtaining the frequency control mode and the reference control mode, the step of controlling the compressor operation according to the reference control mode includes S300:

[0110] Step S300: Control the compressor to operate according to the reference control mode and the frequency control mode.

[0111] In one implementation, the compressor is controlled by selecting one control method based on the power of the air conditioner corresponding to the reference control method and the frequency control method, respectively. In another implementation, the frequency limit range can be determined based on the reference control method, and the frequency control method includes the frequency adjustment direction. Within the frequency limit range, the target frequency corresponding to the frequency adjustment direction is determined, and the compressor is controlled to adjust to the target frequency in that frequency adjustment direction.

[0112] In some embodiments, the above-described method helps to ensure that the air conditioner meets the user's energy-saving needs while improving indoor temperature comfort.

[0113] In other embodiments, the target control strategy includes, when the compressor reaches its highest frequency, after obtaining the frequency control mode, controlling the compressor to operate in frequency control mode within a frequency range less than or equal to the highest frequency.

[0114] In some embodiments, the step of controlling the compressor to operate according to the reference control mode and the frequency control mode includes: when there is a conflict between the reference control mode and the frequency control mode, controlling the compressor to operate in the reference control mode; and when there is no conflict between the reference control mode and the frequency control mode, controlling the compressor to operate in the frequency control mode.

[0115] In some embodiments, when there is a conflict between the two logic-determined compressor control methods, the compressor operation is controlled according to the reference control method first, which helps to ensure the energy-saving effect of the air conditioner and the precise frequency required by the user; when there is no conflict between the two control methods, the compressor operation is controlled by the frequency control method, which helps to effectively improve indoor comfort while meeting the energy-saving effect required by the user.

[0116] In some embodiments, the step of controlling the compressor to operate according to the reference control mode and the frequency control mode includes: controlling the compressor to operate in the reference control mode when the air conditioner power corresponding to the reference control mode is less than or equal to the air conditioner power corresponding to the frequency control mode; and controlling the compressor to operate in the frequency control mode when the air conditioner power corresponding to the reference control mode is greater than the air conditioner power corresponding to the frequency control mode.

[0117] Here, air conditioner power refers to the predicted power that the air conditioner can achieve after the compressor is operated in the corresponding control mode.

[0118] For example, when the reference control mode includes shutdown and the frequency control mode includes compressor frequency increase, decrease, or maintenance of the current frequency, the compressor is controlled to shut down. When both the reference control mode and frequency control mode include shutdown, the compressor is controlled to shut down. When the reference control mode includes frequency decrease or maintenance of the current frequency, and the frequency control mode includes frequency increase, the compressor is controlled to decrease or maintain the current frequency. When the reference control mode includes frequency decrease, and the frequency control mode includes frequency decrease, the compressor is controlled to decrease its frequency. When the reference control mode includes frequency decrease, and the frequency control mode includes maintaining the current frequency, the compressor is controlled to decrease its frequency. When the reference control mode includes maintaining the current frequency, and the frequency control mode includes frequency decrease, the compressor is controlled to decrease its frequency. When the reference control mode includes frequency increase, and the frequency control mode includes frequency increase, the compressor is controlled to increase its frequency.

[0119] In some embodiments, when the air conditioner power under frequency control mode corresponding to the indoor temperature adjustment demand is higher than the air conditioner power under reference control mode, the compressor is preferentially controlled according to the reference control mode to effectively ensure that the air conditioner's output power meets the user's actual energy-saving needs. When the air conditioner power under frequency control mode corresponding to the indoor temperature adjustment demand is lower than the air conditioner power under reference control mode, the compressor operates in frequency control mode, which helps to effectively improve indoor temperature comfort while meeting the user's actual energy-saving needs.

[0120] Based on any of the above embodiments, in some embodiments, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. In addition, after the step of controlling the compressor to operate according to the target control strategy so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter, the method further includes:

[0121] The speed of the indoor fan of the air conditioner is adjusted according to the operating frequency of the compressor.

[0122] Different operating frequencies correspond to different indoor fan speeds. The indoor fan speed is positively correlated with the operating frequency; the higher the operating frequency, the higher the indoor fan speed, and the lower the operating frequency, the lower the indoor fan speed.

[0123] The relationship between the operating frequency and the indoor fan speed can be a pre-set fixed relationship, or it can be determined according to the actual operating conditions of the air conditioner. For example, the relationship between the frequency and the speed can be obtained based on the first power setting parameter. Different first power setting parameters correspond to different relationships.

[0124] In some embodiments, wind frequency linkage in the above manner can effectively improve system energy efficiency while ensuring energy-saving effects.

[0125] In some embodiments, after the step of controlling the compressor to operate according to the target control strategy so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter, the method further includes: when the compressor operation meets the set conditions, controlling the indoor fan to adjust its operating speed so that the indoor heat exchanger temperature of the air conditioner is maintained at the target heat exchanger temperature or the air outlet temperature of the air conditioner is maintained at the target air outlet temperature; and when the compressor operation does not meet the set conditions, performing the step of adjusting the speed of the indoor fan of the air conditioner according to the operating frequency of the compressor; wherein the set conditions include the compressor frequency change value being less than a preset value and the duration being a preset duration.

[0126] The target air outlet temperature or target heat exchanger temperature can be determined based on the air conditioner's set temperature. For example, when the air conditioner is running in cooling mode, the target heat exchanger temperature is obtained by reducing the set temperature based on a preset temperature difference value.

[0127] After adjusting as described above, the overall current can be re-detected, and the compressor can be controlled to run according to the reference control method corresponding to the overall current. Alternatively, the overall current and the ambient temperature of the indoor space can be re-detected, and the compressor can be controlled to run according to the reference control method corresponding to the overall current and the frequency control method corresponding to the ambient temperature.

[0128] In some embodiments, when the frequency remains unchanged for a relatively long period of time, the output of the air conditioner can be considered stable. At this time, controlling the speed of the indoor fan according to the outlet air temperature and the indoor heat exchanger temperature helps to ensure that the outlet air temperature of the air conditioner is not too cold or too hot, which helps to ensure energy saving while further improving indoor comfort.

[0129] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the control method of the air conditioner in this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0130] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the air conditioner control method of the above embodiments.

[0131] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In some embodiments, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0132] The aforementioned computer-readable storage medium may be included in the air conditioner; or it may exist independently and not be installed in the air conditioner.

[0133] The aforementioned computer-readable storage medium carries one or more programs that, when executed by the air conditioner, cause the air conditioner to perform the following process: obtain the current power setting parameters of the air conditioner and obtain a first power setting parameter; determine a target control strategy for the compressor of the air conditioner based on the first power setting parameter; and control the compressor to operate according to the target control strategy so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter.

[0134] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0135] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the control method of the air conditioner described above. This solves the technical problem of how to improve the matching degree between the energy-saving effect of the air conditioner and user needs, ensuring energy saving while improving indoor comfort. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the control method of the air conditioner provided in the above embodiments, and will not be repeated here.

[0136] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0137] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. Modules described in the embodiments of this application can be implemented in software or hardware. The names of modules do not necessarily limit the specific unit itself. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0138] The above descriptions are merely some embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the content of this specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application. Therefore, the protection scope of this application should be determined by the scope of the claims.

Claims

1. A control method for an air conditioner, wherein, The method includes: Obtain the current power setting parameters of the air conditioner and obtain the first power setting parameters; The target control strategy for the air conditioner's compressor is determined based on the first power setting parameters; The compressor is controlled to operate according to the target control strategy so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter.

2. The method as described in claim 1, wherein, The step of determining the target control strategy for the air conditioner's compressor based on the first power setting parameter includes: The target control strategy includes the at least two current ranges and the compressor control mode corresponding to each current range, as determined by the first power setting parameter.

3. The method as described in claim 2, wherein, The step of controlling the compressor operation according to the target control strategy includes: Detect the current total current of the air conditioner; The compressor control mode corresponding to the current range in which the overall machine current is located is determined as the reference control mode, and the compressor is controlled to operate according to the reference control mode.

4. The method of claim 3, wherein, Before the step of controlling the compressor operation according to the reference control method, the method further includes: Obtain the ambient temperature of the indoor space regulated by the air conditioner; The frequency control method of the compressor is determined based on the ambient temperature and the set temperature of the air conditioner. The step of controlling the compressor operation according to the reference control method includes: The compressor is controlled to operate according to the reference control method and the frequency control method.

5. The method of claim 4, wherein, The step of controlling the compressor operation according to the reference control method and the frequency control method includes: When there is a conflict between the reference control mode and the frequency control mode, the compressor is controlled to operate in the reference control mode; When there is no conflict between the reference control mode and the frequency control mode, the compressor is controlled to operate in the frequency control mode.

6. The method according to any one of claims 3 to 5, wherein, The second power setting parameter is defined as the power setting parameter of the air conditioner before the current moment. One of the at least two current ranges is the first current range. The compressor control mode corresponding to the first current range includes shutdown. After the step of detecting the current total current of the air conditioner, the following is also included: When the power represented by the first power setting parameter is less than the power represented by the second power setting parameter, and the overall current is within the first current range, the compressor is controlled to remain on and operate at a reduced frequency. When the power represented by the first power setting parameter is less than the power represented by the second power setting parameter, and when the overall machine current is less than the current in the first current range, the step of determining the compressor control mode corresponding to the current range where the overall machine current is located as the reference control mode is executed, and controlling the compressor operation according to the reference control mode is performed.

7. The method according to any one of claims 2 to 6, wherein, The at least two current ranges include a first current range, a second current range, a third current range, and a fourth current range. The compressor control method corresponding to the first current range includes shutdown, the compressor control method corresponding to the second current range includes frequency reduction, the compressor control method corresponding to the third current range includes maintaining the current frequency, and the compressor control method corresponding to the fourth current range includes frequency increase. The current in the first current range is greater than the current in the second current range, the current in the second current range is greater than the current in the third current range, and the current in the third current range is greater than the current in the fourth current range.

8. The method according to any one of claims 1 to 6, wherein, After the step of controlling the compressor to operate according to the target control strategy so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter, the method further includes: The speed of the indoor fan of the air conditioner is adjusted according to the operating frequency of the compressor.

9. The method of claim 8, wherein, After the step of controlling the compressor to operate according to the target control strategy so that the power of the air conditioner is less than or equal to the maximum power represented by the first power setting parameter, the method further includes: When the compressor operates under set conditions, the indoor fan is controlled to adjust its operating speed so that the indoor heat exchanger temperature of the air conditioner is maintained at the target heat exchanger temperature or the air outlet temperature of the air conditioner is maintained at the target air outlet temperature. If the compressor operation does not meet the set conditions, the step of adjusting the speed of the indoor fan of the air conditioner according to the operating frequency of the compressor is performed. The set conditions include the compressor frequency change value being less than a preset value and the duration being less than a preset duration.

10. An air conditioner, wherein, The air conditioner includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method for the air conditioner as described in any one of claims 1 to 9.

11. A storage medium, wherein, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the control method for the air conditioner as described in any one of claims 1 to 9.

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