Control method and device of electronic expansion valve of air conditioner, electronic device and medium

Abstract

The application discloses a control method and device of an electronic expansion valve of an air conditioner, an electronic device and a medium, and relates to the technical field of air conditioners. In the calculation process of the target exhaust temperature, different parameter sets are used for calculation when the air conditioner is in different operation modes, and the target exhaust temperature is calculated through the target parameter set, the current evaporator temperature, the current condenser temperature and the current compressor rotating speed. The traditional target exhaust temperature is generally obtained by table lookup through the compressor rotating speed, the calculation is not accurate enough, and the operation mode of the air conditioner is not considered. Therefore, compared with the traditional technology, the calculation of the target exhaust temperature is more accurate in the application, so that the opening degree of the electronic expansion valve can be adjusted more accurately, and the energy efficiency ratio of the air conditioner can be improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a control method, device, electronic equipment and medium for an electronic expansion valve of an air conditioner. Background Technology

[0002] The electronic expansion valve is a key component of the air conditioning system. The opening degree of the electronic expansion valve is related to the stability of the air conditioning system and the cooling and heating effect, which indirectly affects the user's comfort.

[0003] In related technologies, PID algorithms are used to control the opening of the electronic expansion valve. Specifically, the difference between the actual discharge temperature of the compressor and the target discharge temperature is used as the deviation. Based on this deviation, PID calculations are performed to adjust and control the opening of the electronic expansion valve, making valve control faster and improving its responsiveness to external changes. However, in current related technologies, the target discharge temperature is determined only based on the compressor's operating frequency. This target discharge temperature is not precise enough, leading to inaccurate adjustment of the electronic expansion valve opening and affecting the improvement of the system's energy efficiency ratio. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a control method, device, electronic equipment, and medium for the electronic expansion valve of an air conditioner, which can more accurately calculate the target exhaust temperature, thereby enabling more precise adjustment of the opening degree of the electronic expansion valve and improving the energy efficiency ratio of the air conditioner.

[0005] A method for controlling the electronic expansion valve of an air conditioner according to a first aspect embodiment of this application includes:

[0006] Obtain the current evaporator temperature, current condenser temperature, current compressor speed, and current operating mode of the air conditioner;

[0007] Based on a preset first mapping relationship, a target parameter set matching the current operating mode is determined from multiple preset parameter sets;

[0008] The target exhaust temperature is calculated based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed.

[0009] Obtain the current actual exhaust temperature, calculate the difference between the current actual exhaust temperature and the target exhaust temperature, and obtain the first temperature difference;

[0010] The current opening degree of the electronic expansion valve is obtained, and a target opening degree is determined based on the first temperature difference value and the current opening degree, and the opening degree of the electronic expansion valve is set as the target opening degree.

[0011] The control method for the electronic expansion valve of an air conditioner according to embodiments of this application has at least the following beneficial effects: In the calculation of the target exhaust temperature, different parameter sets are used for calculation when the air conditioner is in different operating modes. The target exhaust temperature is calculated using the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed. Traditional methods generally only obtain the target exhaust temperature by looking up the compressor speed in a table, which is not accurate enough and does not consider the air conditioner's operating mode. Therefore, compared with traditional technologies, this application calculates the target exhaust temperature more accurately. After calculating the target exhaust temperature, the difference between the current actual exhaust temperature and the target exhaust temperature is calculated to obtain a first temperature difference. Based on the first temperature difference and the current opening degree, the target opening degree is determined, and the opening degree of the electronic expansion valve is set to the target opening degree. Thus, the control method for the electronic expansion valve of the air conditioner in this application calculates the target exhaust temperature more accurately, thereby enabling more precise adjustment of the electronic expansion valve opening degree and improving the energy efficiency ratio of the air conditioner.

[0012] According to some embodiments of the first aspect of this application, the target parameter set includes a first target parameter, a second target parameter, a third target parameter, and a fourth target parameter;

[0013] The calculation of the target exhaust temperature based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed includes:

[0014] The target exhaust temperature is calculated according to a first calculation formula, which is:

[0015] Tdc=CTDA*Tc+CTDB*Te+CTDC*Rs+CTDD;

[0016] Wherein, CTDA is the first target parameter, CTDB is the second target parameter, CTDC is the third target parameter, CTDD is the fourth target parameter, Tdc is the target exhaust temperature, Tc is the current condenser temperature, Te is the current evaporator temperature, and Rs is the current compressor speed.

[0017] According to some embodiments of the first aspect of this application, determining the target opening based on the first temperature difference and the current opening includes:

[0018] Determine a target difference interval that includes the first temperature difference from multiple difference intervals;

[0019] Based on a preset second mapping relationship, a target opening adjustment value corresponding to the target difference interval is determined from multiple opening adjustment values;

[0020] The target opening is set to be the sum of the current opening and the target opening adjustment value.

[0021] According to some embodiments of the first aspect of this application, it also includes:

[0022] In response to receiving an air conditioner start command sent by a remote controller; wherein the air conditioner start command includes a target temperature and a target operating mode;

[0023] Get the current indoor temperature;

[0024] Calculate the difference between the current indoor temperature and the target temperature to obtain a second temperature difference;

[0025] The initial opening degree is determined based on the second temperature difference and the target operating mode, and the electronic expansion valve is controlled to operate at the initial opening degree.

[0026] According to some embodiments of the first aspect of this application, determining the initial opening based on the second temperature difference and the target operating mode includes:

[0027] Obtain the historical commonly used opening degree of the electronic expansion valve under the target operating mode;

[0028] The initial opening is calculated based on the second temperature difference, the historically commonly used opening, and the second calculation formula.

[0029] According to some embodiments of the first aspect of this application, the second calculation formula is:

[0030] S = S0 + |△T|*A;

[0031] Wherein, S is the initial opening degree, S0 is the historically commonly used opening degree of the target operating mode, ΔT is the second temperature difference value, and A is a preset constant.

[0032] According to some embodiments of the first aspect of this application, the historical commonly used aperture is obtained by the following steps:

[0033] The historical electronic expansion valve opening data of the air conditioner operating in the target operating mode during a historical time period is obtained; wherein, the historical electronic expansion valve opening data includes multiple historical electronic expansion valve openings and the duration of each historical electronic expansion valve opening;

[0034] The historical electronic expansion valve opening with the longest duration is taken as the historical commonly used opening.

[0035] A second aspect of this application provides a control device for an electronic expansion valve of an air conditioner, comprising:

[0036] The first acquisition unit is used to acquire the current evaporator temperature, current condenser temperature, current compressor speed, and current operating mode of the air conditioner;

[0037] The determining unit is used to determine a target parameter set that matches the current operating mode from multiple preset parameter sets based on a preset first mapping relationship;

[0038] The calculation unit is used to calculate the target exhaust temperature based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed;

[0039] The second acquisition unit is used to acquire the current actual exhaust temperature, calculate the difference between the current actual exhaust temperature and the target exhaust temperature, and obtain a first temperature difference.

[0040] The third acquisition unit is used to acquire the current opening degree of the electronic expansion valve, determine the target opening degree based on the first temperature difference value and the current opening degree, and set the opening degree of the electronic expansion valve as the target opening degree.

[0041] A third aspect of this application provides an air conditioner, including an electronic device. The electronic device includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the control method of the electronic expansion valve of the air conditioner according to any one of the first aspects of the embodiment.

[0042] A fourth aspect of this application provides a computer-readable storage medium storing a computer program, characterized in that, when executed by a processor, the computer program implements the control method for the electronic expansion valve of an air conditioner according to any one of the first aspects of the embodiment.

[0043] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0044] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0045] Figure 1 This is a schematic flowchart illustrating the control method of the electronic expansion valve of an air conditioner according to an embodiment of this application.

[0046] Figure 2 This is a partial block diagram of an air conditioner according to an embodiment of this application;

[0047] Figure 3 for Figure 1 A detailed flowchart of step S150;

[0048] Figure 4 This is another schematic flowchart illustrating the control method of the electronic expansion valve of the air conditioner according to an embodiment of this application;

[0049] Figure 5 This is a functional unit block diagram of the control device for the electronic expansion valve of an air conditioner according to an embodiment of this application;

[0050] Figure 6 This is a schematic diagram of the hardware structure of an air conditioner according to an embodiment of this application. Detailed Implementation

[0051] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0052] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0054] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0055] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] The first aspect of this application provides a method for controlling the electronic expansion valve of an air conditioner. This method can be applied to an air conditioner or a server; the server can be configured as an independent physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms; the software can be an application that implements the control method for the electronic expansion valve of the air conditioner, but is not limited to the above forms.

[0057] This application can be used in a wide variety of general-purpose or special-purpose computer system environments or configurations. Examples include: personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, and distributed computing environments including any of the above systems or devices. This application can be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform specific tasks or implement specific abstract data types. This application can also be practiced in distributed computing environments where tasks are performed by remote processing devices connected via a communication network. In distributed computing environments, program modules can reside in local and remote computer storage media, including storage devices.

[0058] Reference Figure 1 , Figure 1 This is a flowchart illustrating the control method of the electronic expansion valve of an air conditioner according to an embodiment of this application. The control method of the electronic expansion valve of the air conditioner according to an embodiment of this application includes, but is not limited to, steps S110 to S150.

[0059] Step S110: Obtain the current evaporator temperature, current condenser temperature, current compressor speed, and current operating mode of the air conditioner;

[0060] It is worth noting that the air conditioner is equipped with sensors for detecting the evaporator temperature and sensors for detecting the condenser temperature, thereby obtaining the current evaporator temperature and the current condenser temperature. The current compressor speed and current operating mode can be obtained from the air conditioner's control system.

[0061] Step S120: Based on the preset first mapping relationship, determine the target parameter set that matches the current running mode from multiple preset parameter sets;

[0062] Step S130: Calculate the target exhaust temperature based on the target parameter set, current evaporator temperature, current condenser temperature, and current compressor speed;

[0063] It is worth noting that, referring to Figure 2 , Figure 2 This is a partial block diagram of an air conditioner according to an embodiment of this application. The control method of the electronic expansion valve of the air conditioner according to the first aspect of this application can be applied to... Figure 2 The illustration shows an air conditioner. The air conditioner includes a compressor, evaporator, condenser, and electronic expansion valve. The refrigerant output from the evaporator passes through the compressor and is then fed into the condenser. The refrigerant output from the condenser is fed into the evaporator through the electronic expansion valve.

[0064] It should be noted that the target exhaust temperature refers to the theoretically desired temperature that the compressor's exhaust pipe should reach under the current operating conditions of the air conditioner. The target exhaust temperature is crucial to the electronic expansion valve control process. During operation, the air conditioner continuously adjusts the opening of the electronic expansion valve to ensure that the actual measured exhaust temperature is as close as possible to this calculated target exhaust temperature.

[0065] Step S140: Obtain the current actual exhaust temperature, calculate the difference between the current actual exhaust temperature and the target exhaust temperature, and obtain the first temperature difference.

[0066] It is worth noting that the air conditioner is equipped with a sensor to detect the actual exhaust temperature of the compressor's exhaust pipe, thereby obtaining the current actual exhaust temperature.

[0067] Step S150: Obtain the current opening degree of the electronic expansion valve, determine the target opening degree based on the first temperature difference and the current opening degree, and set the opening degree of the electronic expansion valve as the target opening degree.

[0068] The electronic expansion valve control method for air conditioners in this embodiment, through steps S110 to S150, calculates the target exhaust temperature using different parameter sets depending on the air conditioner's operating mode. The target exhaust temperature is calculated using the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed. Traditional methods typically obtain the target exhaust temperature simply by looking up the compressor speed in a table, resulting in inaccurate calculations and neglecting the air conditioner's operating mode. Therefore, compared to traditional techniques, this application provides a more accurate calculation of the target exhaust temperature. After calculating the target exhaust temperature, the difference between the current actual exhaust temperature and the target exhaust temperature is calculated to obtain a first temperature difference. Based on this first temperature difference and the current opening degree, the target opening degree is determined, and the opening degree of the electronic expansion valve is set to the target opening degree. Thus, the electronic expansion valve control method for air conditioners in this application calculates the target exhaust temperature more accurately, enabling more precise adjustment of the electronic expansion valve opening and improving the air conditioner's energy efficiency ratio.

[0069] Specifically, in this embodiment, the accuracy of the target exhaust temperature calculation allows for more precise adjustment of the opening of the electronic expansion valve, which is beneficial for the evaporator, compressor, condenser, and electronic expansion valve to always work together at or near their respective highest efficiency points, thereby achieving optimal overall energy consumption.

[0070] In some embodiments, the target parameter set includes a first target parameter, a second target parameter, a third target parameter, and a fourth target parameter. Step S130 may include the following steps:

[0071] The target exhaust temperature is calculated using the first calculation formula, which is:

[0072] Tdc=CTDA*Tc+CTDB*Te+CTDC*Rs+CTDD;

[0073] Wherein, CTDA is the first target parameter, CTDB is the second target parameter, CTDC is the third target parameter, CTDD is the fourth target parameter, Tdc is the target exhaust temperature, Tc is the current condenser temperature, Te is the current evaporator temperature, and Rs is the current compressor speed.

[0074] It should be noted that the first mapping relationship records the mapping relationship between the parameter set and the operating mode. Therefore, after determining the current operating mode, the parameter set matching the current operating mode can be determined from the first mapping relationship, thus obtaining the target parameter set. This application does not limit the specific values ​​of the parameter set; the parameters in the parameter set are all obtained by relevant personnel through repeated experiments.

[0075] In some embodiments, when the current operating mode is cooling mode, CTDA is 1.38, CTDB is -0.48, CTDC is 0.1, and CTDD is 7.4.

[0076] In some embodiments, refer to Figure 3 , Figure 3 for Figure 1 A detailed flowchart of step S150 is shown below. In step S150, the target opening is determined based on the first temperature difference and the current opening, including steps S310 to S330.

[0077] Step S310: Determine a target difference interval that includes the first temperature difference from multiple difference intervals;

[0078] Step S320: Based on the preset second mapping relationship, determine the target opening adjustment value corresponding to the target difference interval from multiple opening adjustment values;

[0079] Step S330: Set the target opening to the sum of the current opening and the target opening adjustment value.

[0080] Specifically, the second mapping relationship records the mapping relationship between the difference interval and the opening adjustment value. Therefore, after determining the target difference interval where the first temperature difference value is located, the target opening adjustment value corresponding to the target difference interval can be determined based on the second mapping relationship. For example, refer to Table 1, which is used to characterize the second mapping relationship.

[0081] Table 1

[0082]

[0083] Wherein, DTD is the first temperature difference, which equals the actual exhaust temperature minus the target exhaust temperature. After obtaining the DTD, the corresponding target opening adjustment value is obtained by looking up Table 1, and then the target opening is set to the sum of the current opening and the target opening adjustment value. P1, P2, and P3 are all preset values, and all three are greater than 0.

[0084] In some embodiments, refer to Figure 4 , Figure 4 This is another schematic flowchart illustrating the control method of the electronic expansion valve of an air conditioner according to an embodiment of this application. Figure 4 The illustrated process includes steps S410 to S440.

[0085] Step S410, in response to receiving an air conditioner start command sent by the remote control; wherein the air conditioner start command includes a target temperature and a target operating mode;

[0086] Specifically, the user operates the remote control, which generates an air conditioner start command based on the user's input and sends this command to the air conditioner. The air conditioner's control system then controls its operation based on the target temperature and target operating mode. For example, if the target operating mode is cooling mode, the control system will set the air conditioner to operate in cooling mode.

[0087] Step S420: Obtain the current indoor temperature;

[0088] Step S430: Calculate the difference between the current indoor temperature and the target temperature to obtain the second temperature difference;

[0089] Step S440: Determine the initial opening degree based on the second temperature difference and the target operating mode, and control the electronic expansion valve to operate at the initial opening degree.

[0090] It is worth noting that the control method of the electronic expansion valve of the air conditioner in this application embodiment, through the above steps S410 to S440, determines the initial opening degree based on the second temperature difference and the target operating mode, and controls the electronic expansion valve to operate at the initial opening degree, so that the initial opening degree of the electronic expansion valve is close to the opening degree when the air conditioner is running stably. In the subsequent adjustment of the opening degree of the electronic expansion valve, the adjustment amount is small, which can improve the user experience.

[0091] In some embodiments, step S440 includes steps S441 and S442:

[0092] Step S441: Obtain the historical commonly used opening degree of the electronic expansion valve in the target operating mode;

[0093] Step S442: Calculate the initial opening based on the second temperature difference, historically used opening, and the second calculation formula.

[0094] It is worth noting that the second calculation formula is:

[0095] S = S0 + |△T|*A;

[0096] Where S is the initial opening degree, S0 is the historically commonly used opening degree of the target operating mode, ΔT is the second temperature difference value, and A is a preset constant.

[0097] The initial opening is calculated through steps S441 and S442. Since the initial opening is based on the historically commonly used opening of the target operating mode, the initial opening is close to the historically commonly used opening. In the subsequent adjustment of the electronic expansion valve opening, the adjustment amount is small, which can improve the user experience.

[0098] It is worth noting that the commonly used historical opening degree is obtained through the following steps:

[0099] Acquire historical electronic expansion valve opening data of the air conditioner operating in the target operating mode within a historical time period; wherein, the historical electronic expansion valve opening data includes multiple historical electronic expansion valve openings and the duration of each historical electronic expansion valve opening;

[0100] The longest-lasting historical electronic expansion valve opening is taken as the historically commonly used opening.

[0101] Historical time period refers to a period of time in the past relative to the current time, such as the past week or the past month. This application does not make a specific limitation on the historical time period, and those skilled in the art can set the historical time period according to actual needs.

[0102] A second aspect of this application provides a control device for an electronic expansion valve in an air conditioner. (See also...) Figure 5 , Figure 5 This is a functional unit block diagram of the control device for the electronic expansion valve of an air conditioner according to an embodiment of this application. The control device for the electronic expansion valve of the air conditioner includes:

[0103] The first acquisition unit 510 is used to acquire the current evaporator temperature, current condenser temperature, current compressor speed and current operating mode of the air conditioner;

[0104] The determining unit 520 is used to determine a target parameter set that matches the current operating mode from multiple preset parameter sets based on a preset first mapping relationship;

[0105] The calculation unit 530 is used to calculate the target exhaust temperature based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed.

[0106] The second acquisition unit 540 is used to acquire the current actual exhaust temperature, calculate the difference between the current actual exhaust temperature and the target exhaust temperature, and obtain the first temperature difference.

[0107] The third acquisition unit 550 is used to acquire the current opening degree of the electronic expansion valve, determine the target opening degree based on the first temperature difference and the current opening degree, and set the opening degree of the electronic expansion valve as the target opening degree.

[0108] The control device for the electronic expansion valve of an air conditioner according to the second aspect of this application is used to execute the control method for the electronic expansion valve of an air conditioner according to the first aspect of this application. During the execution of the method, in the calculation of the target exhaust temperature, different parameter sets are used for calculation when the air conditioner is in different operating modes. The target exhaust temperature is calculated using the parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed. Traditional methods generally only obtain the target exhaust temperature by looking up the compressor speed in a table, which is not accurate enough and does not consider the air conditioner's operating mode. Therefore, compared with traditional technology, this application calculates the target exhaust temperature more accurately. After calculating the target exhaust temperature, the difference between the current actual exhaust temperature and the target exhaust temperature is calculated to obtain a first temperature difference value. Based on the first temperature difference value and the current opening degree, the target opening degree is determined, and the opening degree of the electronic expansion valve is set to the target opening degree. Thus, the control method for the electronic expansion valve of the air conditioner according to this application calculates the target exhaust temperature more accurately, thereby enabling more precise adjustment of the electronic expansion valve opening degree and improving the energy efficiency ratio of the air conditioner.

[0109] It should be noted that the specific implementation of the control device for the electronic expansion valve of the air conditioner is basically the same as the specific implementation of the control method for the electronic expansion valve of the air conditioner in the above embodiments, and will not be repeated here. Under the premise of meeting the requirements of the embodiments of this application, the control device for the electronic expansion valve of the air conditioner can also be equipped with other functional modules to realize the control method for the electronic expansion valve of the air conditioner in the above embodiments.

[0110] A third aspect of this application provides an air conditioner, which includes an electronic device. The electronic device includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, it implements the control method of the electronic expansion valve of the air conditioner described above.

[0111] In one embodiment, reference is made to Figure 6 , Figure 6 This illustration shows a hardware module block diagram of an air conditioner according to an embodiment of this application. The air conditioner includes:

[0112] The processor 601 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this application.

[0113] The memory 602 can be implemented as a read-only memory (ROM), static storage device, dynamic storage device, or random access memory (RAM). The memory 602 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 602, and the processor 601 calls and executes the control method of the electronic expansion valve of the air conditioner according to the embodiments of this application.

[0114] The input / output interface 603 is used to implement information input and output;

[0115] The communication interface 604 is used to enable communication and interaction between this device and other devices. Communication can be achieved through wired means (such as USB, network cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0116] Bus 605 transmits information between various components of the device (e.g., processor 601, memory 602, input / output interface 603, and communication interface 604);

[0117] The processor 601, memory 602, input / output interface 603, and communication interface 604 are connected to each other within the device via bus 605.

[0118] According to a fourth aspect of this application, a computer-readable storage medium stores a computer program that, when executed by a processor, implements the control method for the electronic expansion valve of an air conditioner according to the first aspect of this application.

[0119] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0120] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0121] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of this application, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0122] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0123] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, or suitable combinations thereof.

[0124] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0125] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0126] In the embodiments provided in this application, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0127] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0128] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0129] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes multiple instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing programs, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0130] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A control method for an electronic expansion valve in an air conditioner, characterized in that, include: Obtain the current evaporator temperature, current condenser temperature, current compressor speed, and current operating mode of the air conditioner; Based on a preset first mapping relationship, a target parameter set matching the current operating mode is determined from multiple preset parameter sets; The target exhaust temperature is calculated based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed. Obtain the current actual exhaust temperature, calculate the difference between the current actual exhaust temperature and the target exhaust temperature, and obtain the first temperature difference; The current opening degree of the electronic expansion valve is obtained, and a target opening degree is determined based on the first temperature difference value and the current opening degree, and the opening degree of the electronic expansion valve is set as the target opening degree; In response to receiving an air conditioner start command sent by a remote controller; wherein the air conditioner start command includes a target temperature and a target operating mode; Get the current indoor temperature; Calculate the difference between the current indoor temperature and the target temperature to obtain a second temperature difference; Obtain the historical commonly used opening degree of the electronic expansion valve under the target operating mode; The initial opening is calculated based on the second temperature difference, the historically commonly used opening, and the second calculation formula. The historically commonly used opening degree is obtained through the following steps: The historical electronic expansion valve opening data of the air conditioner operating in the target operating mode during a historical time period is obtained; wherein, the historical electronic expansion valve opening data includes multiple historical electronic expansion valve openings and the duration of each historical electronic expansion valve opening; The historical electronic expansion valve opening with the longest duration is taken as the historical commonly used opening. The target parameter set includes a first target parameter, a second target parameter, a third target parameter, and a fourth target parameter; The calculation of the target exhaust temperature based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed includes: The target exhaust temperature is calculated according to a first calculation formula, which is: Tdc=CTDA*Tc+CTDB*Te+CTDC*Rs+CTDD; Wherein, CTDA is the first target parameter, CTDB is the second target parameter, CTDC is the third target parameter, CTDD is the fourth target parameter, Tdc is the target exhaust temperature, Tc is the current condenser temperature, Te is the current evaporator temperature, and Rs is the current compressor speed.

2. The control method for the electronic expansion valve of an air conditioner according to claim 1, characterized in that, The step of determining the target opening based on the first temperature difference and the current opening includes: Determine a target difference interval that includes the first temperature difference from multiple difference intervals; Based on a preset second mapping relationship, a target opening adjustment value corresponding to the target difference interval is determined from multiple opening adjustment values; The target opening is set to be the sum of the current opening and the target opening adjustment value.

3. The control method for the electronic expansion valve of an air conditioner according to claim 1, characterized in that, The second calculation formula is: S = S0 + |△T|*A; Wherein, S is the initial opening degree, S0 is the historically commonly used opening degree of the target operating mode, ΔT is the second temperature difference value, and A is a preset constant.

4. A control device for an electronic expansion valve of an air conditioner, characterized in that, include: The first acquisition unit is used to acquire the current evaporator temperature, current condenser temperature, current compressor speed, and current operating mode of the air conditioner; The determining unit is used to determine a target parameter set that matches the current operating mode from multiple preset parameter sets based on a preset first mapping relationship; The calculation unit is used to calculate the target exhaust temperature based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed; The second acquisition unit is used to acquire the current actual exhaust temperature, calculate the difference between the current actual exhaust temperature and the target exhaust temperature, and obtain a first temperature difference. The third acquisition unit is used to acquire the current opening degree of the electronic expansion valve, determine the target opening degree based on the first temperature difference value and the current opening degree, and set the opening degree of the electronic expansion valve as the target opening degree. In response to receiving an air conditioner start command sent by a remote controller; wherein the air conditioner start command includes a target temperature and a target operating mode; Get the current indoor temperature; Calculate the difference between the current indoor temperature and the target temperature to obtain a second temperature difference; Obtain the historical commonly used opening degree of the electronic expansion valve under the target operating mode; The initial opening is calculated based on the second temperature difference, the historically commonly used opening, and the second calculation formula. The historically commonly used opening degree is obtained through the following steps: The historical electronic expansion valve opening data of the air conditioner operating in the target operating mode during a historical time period is obtained; wherein, the historical electronic expansion valve opening data includes multiple historical electronic expansion valve openings and the duration of each historical electronic expansion valve opening; The historical electronic expansion valve opening with the longest duration is taken as the historical commonly used opening. The target parameter set includes a first target parameter, a second target parameter, a third target parameter, and a fourth target parameter; The calculation of the target exhaust temperature based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed includes: The target exhaust temperature is calculated according to a first calculation formula, which is: Tdc=CTDA*Tc+CTDB*Te+CTDC*Rs+CTDD; Wherein, CTDA is the first target parameter, CTDB is the second target parameter, CTDC is the third target parameter, CTDD is the fourth target parameter, Tdc is the target exhaust temperature, Tc is the current condenser temperature, Te is the current evaporator temperature, and Rs is the current compressor speed.

5. An air conditioner, characterized in that, The invention includes an electronic device comprising a memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the control method for the electronic expansion valve of the air conditioner according to any one of claims 1 to 3.

6. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the control method for the electronic expansion valve of the air conditioner according to any one of claims 1 to 3.

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