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

Abstract

The invention discloses a control method and device for an electronic expansion valve of an air conditioner, electronic equipment and a medium, and relates to the technical field of air conditioners. And in the calculation process of the target exhaust temperature, when the air conditioner is in different operation modes, different parameter sets are adopted for calculation, and the target exhaust temperature is obtained through calculation according to 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 only by looking up a table through the rotating speed of the compressor, calculation is not accurate enough, and the operation mode of the air conditioner is not considered, so that compared with the traditional technology, calculation of the target exhaust temperature is more accurate, the opening degree of the electronic expansion valve can be adjusted more accurately, and the operation efficiency of the air conditioner is improved. Therefore, the energy efficiency ratio of the air conditioner can be improved.

Description

Technical Field

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

[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 effects, and indirectly affects the user's comfort.

[0003] In related technologies, a PID algorithm is used to control the opening of an electronic expansion valve. Specifically, the difference between the actual exhaust temperature of the compressor and the target exhaust temperature is used as a deviation, and a PID calculation is performed based on this deviation to adjust and control the opening of the electronic expansion valve. This allows for faster valve control and improved responsiveness to external changes. However, in current related technologies, the target exhaust temperature is determined solely based on the operating frequency of the compressor, which is not precise enough. This results in inaccurate adjustment of the opening of the electronic expansion valve, affecting the improvement of the system's energy efficiency ratio. Summary of the Invention

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

[0005] According to the first aspect of the present application, a method for controlling an electronic expansion valve of an air conditioner includes: Get 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, determining a target parameter set matching the current operating mode from a plurality of preset parameter sets; Calculating a target exhaust temperature based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed; Acquiring a current actual exhaust temperature, and calculating a difference between the current actual exhaust temperature and the target exhaust temperature to obtain a first temperature difference; The current opening of the electronic expansion valve is acquired, a target opening is determined based on the first temperature difference and the current opening, and the opening of the electronic expansion valve is set to the target opening.

[0006] The control method for an electronic expansion valve of an air conditioner according to an embodiment of the present application has at least the following beneficial effects: During 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. Conventional target exhaust temperatures are generally calculated solely by looking up the compressor speed in a table, which is less accurate and does not take the air conditioner's operating mode into consideration. Therefore, compared to conventional techniques, the present 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. The target opening is determined based on the first temperature difference and the current opening, and the opening of the electronic expansion valve is set to the target opening. Thus, the control method for an electronic expansion valve of an air conditioner according to the present application more accurately calculates the target exhaust temperature, thereby enabling more precise adjustment of the electronic expansion valve opening, thereby improving the energy efficiency of the air conditioner.

[0007] According to some embodiments of the first aspect of the present application, the target parameter set includes a first target parameter, a second target parameter, a third target parameter, and a fourth target parameter; The calculating 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 obtained by calculating according to a first calculation formula, wherein the first calculation formula is: Tdc=CTDA*Tc+CTDB*Te+CTDC*Rs+CTDD; Among them, 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.

[0008] According to some embodiments of the first aspect of the present application, determining the target opening degree based on the first temperature difference and the current opening degree includes: determining a target difference interval including the first temperature difference from a plurality of difference intervals; Based on a preset second mapping relationship, determining a target opening adjustment value corresponding to the target difference interval from a plurality of opening adjustment values; The target opening is set to be the sum of the current opening and the target opening adjustment value.

[0009] According to some embodiments of the first aspect of the present application, the further comprising: In response to receiving an air conditioner start instruction sent by a remote controller, wherein the air conditioner start instruction includes a target temperature and a target operating mode; Get the current indoor temperature; Calculating a difference between the current indoor temperature and the target temperature to obtain a second temperature difference; An initial opening degree is determined based on the second temperature difference and the target operation mode, and the electronic expansion valve is controlled to operate at the initial opening degree.

[0010] According to some embodiments of the first aspect of the present application, determining the initial opening degree based on the second temperature difference and the target operating mode includes: Obtaining a historical commonly used opening degree of the electronic expansion valve under the target operation mode; The initial opening is calculated based on the second temperature difference, the historical commonly used opening, and a second calculation formula.

[0011] According to some embodiments of the first aspect of the present application, the second calculation formula is: S=S0+|△T|*A; Wherein, S is the initial opening, S0 is the historical commonly used opening of the target operation mode, ΔT is the second temperature difference, and A is a preset constant.

[0012] According to some embodiments of the first aspect of the present application, the historical commonly used opening is obtained by the following steps: Acquiring 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; The historical electronic expansion valve opening degree with the longest duration is used as the historical commonly used opening degree.

[0013] A second embodiment of the present application provides a control device for an electronic expansion valve of an air conditioner, comprising: a first acquiring unit, configured to acquire a current evaporator temperature, a current condenser temperature, a current compressor speed, and a current operating mode of the air conditioner; a determining unit, configured to determine, based on a preset first mapping relationship, a target parameter set matching the current operating mode from a plurality of preset parameter sets; a calculation unit, configured to calculate a target exhaust temperature based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed; a second acquiring unit, configured to acquire a current actual exhaust temperature, and calculate a difference between the current actual exhaust temperature and the target exhaust temperature to obtain a first temperature difference; The third acquisition unit is configured to acquire a current opening of the electronic expansion valve, determine a target opening based on the first temperature difference and the current opening, and set the opening of the electronic expansion valve to the target opening.

[0014] An embodiment of the third aspect of the present application provides an air conditioner, comprising an electronic device, the electronic device comprising a memory and a processor, the memory storing a computer program, and the processor implementing the control method of the electronic expansion valve of the air conditioner as described in any one of the embodiments of the first aspect when executing the computer program.

[0015] The fourth aspect of the present application provides a computer-readable storage medium, which stores a computer program, and is characterized in that when the computer program is executed by a processor, it implements the control method of the electronic expansion valve of the air conditioner as described in any one of the first aspect embodiments.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 Schematic diagram of a flow chart of a method for controlling an electronic expansion valve of an air conditioner according to an embodiment of the present application; Figure 2 A block diagram of some modules of an air conditioner according to an embodiment of the present application; Figure 3 for Figure 1 A specific flow chart of step S150; Figure 4 Another flowchart of a method for controlling an electronic expansion valve of an air conditioner according to an embodiment of the present application; Figure 5 This is a functional unit block diagram of a control device for an electronic expansion valve of an air conditioner according to an embodiment of the present application; Figure 6 This is a schematic diagram of the hardware structure of the air conditioner according to an embodiment of the present application. DETAILED DESCRIPTION

[0018] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0019] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships 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, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0020] In the description of this application, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0021] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0022] In the description of this application, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0023] In a first aspect, an embodiment of the present application provides a method for controlling an electronic expansion valve of an air conditioner. The method for controlling an electronic expansion valve of an air conditioner in the embodiment of the present application can be applied to an air conditioner or a server; the server can be configured as an independent physical server, or as a server cluster or distributed system consisting of multiple physical servers, or as a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms; the software can be an application that implements the method for controlling an electronic expansion valve of an air conditioner, etc., but is not limited to the above forms.

[0024] The present application can be used in many general or special computer system environments or configurations. For example: 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, distributed computing environments including any of the above systems or devices, and the like. The present 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, and the like that perform specific tasks or implement specific abstract data types. The present application can also be practiced in distributed computing environments in which tasks are performed by remote processing devices connected via a communication network. In a distributed computing environment, program modules can be located in local and remote computer storage media, including storage devices.

[0025] Reference Figure 1 , Figure 1 1 is a flow chart of a method for controlling an electronic expansion valve of an air conditioner according to an embodiment of the present application. The method for controlling an electronic expansion valve of an air conditioner according to an embodiment of the present application includes but is not limited to steps S110 to S150.

[0026] Step S110, obtaining the current evaporator temperature, current condenser temperature, current compressor speed and current operating mode of the air conditioner; It is worth noting that the air conditioner is equipped with a sensor for detecting the evaporator temperature and a sensor for detecting the condenser temperature, thereby obtaining the current evaporator temperature and the current condenser temperature. The current compressor speed and the current operating mode can be obtained from the air conditioner control system.

[0027] Step S120, determining a target parameter set matching the current operation mode from a plurality of preset parameter sets based on a preset first mapping relationship; Step S130, calculating a target exhaust temperature based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed; It is worth noting that, referring to Figure 2 , Figure 2 The control method of the electronic expansion valve of the air conditioner in the first embodiment of the present application can be applied to Figure 2 In the schematic air conditioner, the air conditioner includes a compressor, an evaporator, a condenser, and an electronic expansion valve. The refrigerant output from the evaporator passes through the compressor and is then input to the condenser. The refrigerant output from the condenser is then input to the evaporator through the electronic expansion valve.

[0028] It's important to note that the target exhaust temperature refers to the theoretically desired temperature that the compressor's exhaust pipe should reach under the air conditioner's current operating conditions. 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 keep the measured exhaust temperature as close as possible to the calculated target exhaust temperature.

[0029] Step S140, obtaining the current actual exhaust temperature, calculating the difference between the current actual exhaust temperature and the target exhaust temperature, and obtaining a first temperature difference; It is worth noting that the air conditioner is provided with a sensor for detecting the actual exhaust temperature of the exhaust pipe of the compressor, so that the current actual exhaust temperature can be obtained.

[0030] Step S150 , obtaining the current opening of the electronic expansion valve, determining a target opening based on the first temperature difference and the current opening, and setting the opening of the electronic expansion valve to the target opening.

[0031] The method for controlling an electronic expansion valve for an air conditioner according to an embodiment of the present application, through steps S110 to S150, calculates the target exhaust temperature using different parameter sets 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. Conventional methods generally calculate the target exhaust temperature by simply looking up the compressor speed in a table, which is inaccurate and does not take the air conditioner's operating mode into consideration. Therefore, compared to conventional methods, the present 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. The target opening is determined based on the first temperature difference and the current opening, and the opening of the electronic expansion valve is set to the target opening. Thus, the method for controlling an electronic expansion valve for an air conditioner according to the present application more accurately calculates the target exhaust temperature, thereby enabling more precise adjustment of the opening of the electronic expansion valve, thereby improving the energy efficiency of the air conditioner.

[0032] Specifically, in the embodiment of the present application, the calculation accuracy of the target exhaust temperature can more accurately adjust the opening of the electronic expansion valve, which is conducive to the evaporator, compressor, condenser, and electronic expansion valve always working together at or near their respective highest efficiency points, thereby achieving global optimal energy consumption.

[0033] 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: The target exhaust temperature is calculated according to the first calculation formula. The first calculation formula is: Tdc=CTDA*Tc+CTDB*Te+CTDC*Rs+CTDD; Among them, 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.

[0034] 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 that matches the current operating mode can be determined from the first mapping relationship to obtain the target parameter set. This application does not limit the specific values ​​of the parameter set. The parameters in the parameter set are obtained by relevant personnel through repeated experiments.

[0035] In some embodiments, when the current operating mode is the cooling mode, the CTDA is 1.38, the CTDB is -0.48, the CTDC is 0.1, and the CTDD is 7.4.

[0036] In some embodiments, reference Figure 3 , Figure 3 for Figure 1 In step S150, a target opening is determined based on the first temperature difference and the current opening, including steps S310 to S330.

[0037] Step S310, determining a target difference interval including a first temperature difference from a plurality of difference intervals; Step S320, determining a target opening adjustment value corresponding to the target difference interval from a plurality of opening adjustment values ​​based on a preset second mapping relationship; Step S330 : setting the target opening to be the sum of the current opening and the target opening adjustment value.

[0038] Specifically, the second mapping relationship describes the mapping relationship between the difference interval and the opening adjustment value. Therefore, after determining the target difference interval within which the first temperature difference falls, 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 illustrates the second mapping relationship.

[0039] Table 1

[0040] Where DTD is the first temperature difference, which is calculated as: actual exhaust temperature - target exhaust temperature. After obtaining DTD, a table lookup is performed based on Table 1 to determine the corresponding target opening adjustment value. The target opening is then calculated as: current opening + target opening adjustment value. P1, P2, and P3 are all preset values, and all are greater than 0.

[0041] In some embodiments, reference Figure 4 , Figure 4 This is another flowchart of the method for controlling the electronic expansion valve of the air conditioner according to an embodiment of the present application. Figure 4 The illustrated process includes steps S410 to S440.

[0042] Step S410, in response to receiving an air conditioner start instruction sent by a remote controller; wherein the air conditioner start instruction includes a target temperature and a target operating mode; Specifically, the user operates the remote control, which generates an air conditioner start command based on the user's operation and sends the command to the air conditioner. The air conditioner control system then controls the air conditioner based on the target temperature and target operating mode. For example, if the target operating mode is cooling mode, the control system will operate the air conditioner in cooling mode.

[0043] Step S420, obtaining the current indoor temperature; Step S430, calculating the difference between the current indoor temperature and the target temperature to obtain a second temperature difference; Step S440 : determining an initial opening degree based on the second temperature difference and the target operation mode, and controlling the electronic expansion valve to operate at the initial opening degree.

[0044] It is worth noting that the control method of the electronic expansion valve of the air conditioner in the embodiment of the present application determines the initial opening based on the second temperature difference and the target operating mode through the above-mentioned steps S410 to S440, and controls the electronic expansion valve to operate at the initial opening. This can make the initial opening of the electronic expansion valve close to the opening when the air conditioner is operating stably. In the subsequent process of adjusting the opening of the electronic expansion valve, the adjustment amount is small, which can improve the user experience.

[0045] In some embodiments, step S440 includes step S441 and step S442: Step S441, obtaining the historical commonly used opening of the electronic expansion valve in the target operation mode; Step S442: Calculate the initial opening degree according to the second temperature difference, the historical commonly used opening degrees, and the second calculation formula.

[0046] It is worth noting that the second calculation formula is: S=S0+|△T|*A; Wherein, S is the initial opening, S0 is the historical commonly used opening of the target operation mode, ΔT is the second temperature difference, and A is a preset constant.

[0047] Through steps S441 and S442, the initial opening is calculated. Since the initial opening is based on the historical commonly used opening of the target operating mode, the initial opening is close to the historical commonly used opening. In the subsequent process of adjusting the opening of the electronic expansion valve, the adjustment amount is small, which can improve the user experience.

[0048] It is worth noting that the historical commonly used opening is obtained by the following steps: Obtain historical electronic expansion valve opening data of the air conditioner operating in a 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; The historical electronic expansion valve opening with the longest duration is taken as the historical commonly used opening.

[0049] The historical time period refers to a period of time in the past relative to the current time, for example, it can be within the past week or the past month. This application does not make specific limitations on the historical time period, and those skilled in the art can set the historical time period according to actual needs.

[0050] The second embodiment of the present application provides a control device for an electronic expansion valve of an air conditioner. Figure 5 , Figure 5 This is a functional unit block diagram of a control device for an electronic expansion valve of an air conditioner according to an embodiment of the present application. The control device for an electronic expansion valve of an air conditioner includes: A first acquisition unit 510 is configured to acquire a current evaporator temperature, a current condenser temperature, a current compressor speed, and a current operating mode of the air conditioner; a determining unit 520, configured to determine a target parameter set matching the current operation mode from a plurality of preset parameter sets based on a preset first mapping relationship; A calculation unit 530 is configured to calculate a target exhaust temperature based on a target parameter set, a current evaporator temperature, a current condenser temperature, and a current compressor speed; The second acquisition unit 540 is configured to acquire a current actual exhaust temperature, calculate a difference between the current actual exhaust temperature and a target exhaust temperature, and obtain a first temperature difference; The third acquisition unit 550 is configured to acquire the current opening of the electronic expansion valve, determine a target opening based on the first temperature difference and the current opening, and set the opening of the electronic expansion valve to the target opening.

[0051] A control device for an electronic expansion valve for an air conditioner according to a second aspect of the present application is configured to execute the control method for an electronic expansion valve for an air conditioner according to the first aspect of the present application. During the execution of the method, different parameter sets are used for calculation when the air conditioner is in different operating modes. The target exhaust temperature is calculated based on the parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed. Conventional methods generally calculate the target exhaust temperature by simply looking up the compressor speed in a table, resulting in inaccurate calculations and failing to consider the air conditioner's operating mode. Therefore, compared to conventional methods, the present invention provides 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. The target opening is determined based on the first temperature difference and the current opening, and the opening of the electronic expansion valve is set to the target opening. Thus, the control method for an electronic expansion valve for an air conditioner according to the present application provides more accurate calculation of the target exhaust temperature, enabling more precise adjustment of the electronic expansion valve opening, thereby improving the energy efficiency of the air conditioner.

[0052] It should be noted that the specific implementation of the control device of the electronic expansion valve of the air conditioner is basically the same as the specific implementation of the control method of the electronic expansion valve of the air conditioner in the above-mentioned embodiment, and will not be repeated here. On the premise of meeting the requirements of the embodiment of this application, the control device of the electronic expansion valve of the air conditioner can also be provided with other functional modules to implement the control method of the electronic expansion valve of the air conditioner in the above-mentioned embodiment.

[0053] A third aspect of the present application provides an air conditioner, which includes an electronic device, the electronic device including a memory and a processor, the memory storing a computer program, and the processor implementing the control method of the electronic expansion valve of the air conditioner of the above embodiment when executing the computer program.

[0054] In one embodiment, referring to Figure 6 , Figure 6 The hardware module block diagram of the air conditioner according to the embodiment of the present application is shown. The air conditioner includes: The processor 601 may be implemented as a general-purpose CPU (Central Processing Unit), a microprocessor, an 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 the present application. The memory 602 can be implemented in the form of a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 602 can store an operating system and other application programs. 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 in the embodiments of this application; Input / output interface 603, used to implement information input and output; Communication interface 604, used to implement communication interaction between this device and other devices, which can be achieved through wired means (such as USB, network cable, etc.) or wireless means (such as mobile network, WiFi, Bluetooth, etc.); Bus 605 , which transmits information between various components of the device (e.g., processor 601 , memory 602 , input / output interface 603 , and communication interface 604 ); The processor 601 , the memory 602 , the input / output interface 603 and the communication interface 604 are connected to each other in communication within the device via a bus 605 .

[0055] A fourth embodiment of the present application is a computer-readable storage medium, wherein the storage medium stores a computer program. When the computer program is executed by a processor, the method for controlling an electronic expansion valve of an air conditioner according to the first embodiment is implemented.

[0056] The memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a memory remotely arranged relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0057] The embodiments described in the embodiments of this application are intended to more clearly illustrate 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. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0058] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.

[0059] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, i.e., they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of this embodiment.

[0060] Those skilled in the art will appreciate that all or some of the steps in the methods, systems, and functional modules / units in the devices disclosed above may be implemented as software, firmware, hardware, or appropriate combinations thereof.

[0061] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0062] It should be understood that in this application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0063] In the several 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 example, the division of the above units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0064] The units described above as separate components may or may not be physically separate, and 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 these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0065] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0066] If the integrated unit is implemented in the form of 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 the present application, 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, which is stored in a storage medium and includes multiple instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of various embodiments of the present application. The aforementioned storage medium includes: various media that can store programs, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0067] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but are not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and essence of the present invention should be within the scope of the present invention.

Claims

1. A method for controlling an electronic expansion valve of an air conditioner, characterized in that: include: Get 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, determining a target parameter set matching the current operating mode from a plurality of preset parameter sets; Calculating a target exhaust temperature based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed; Acquiring a current actual exhaust temperature, and calculating a difference between the current actual exhaust temperature and the target exhaust temperature to obtain a first temperature difference; The current opening of the electronic expansion valve is acquired, a target opening is determined based on the first temperature difference and the current opening, and the opening of the electronic expansion valve is set to the target opening.

2. The method for controlling an electronic expansion valve of an air conditioner according to claim 1, wherein: The target parameter set includes a first target parameter, a second target parameter, a third target parameter and a fourth target parameter; The calculating 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 obtained by calculating according to a first calculation formula, wherein the first calculation formula is: Tdc=CTDA*Tc+CTDB*Te+CTDC*Rs+CTDD; Among them, 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.

3. The method for controlling an electronic expansion valve of an air conditioner according to claim 1, wherein: The determining the target opening degree based on the first temperature difference and the current opening degree includes: determining a target difference interval including the first temperature difference from a plurality of difference intervals; Based on a preset second mapping relationship, determining a target opening adjustment value corresponding to the target difference interval from a plurality of opening adjustment values; The target opening is set to be the sum of the current opening and the target opening adjustment value.

4. The method for controlling an electronic expansion valve of an air conditioner according to claim 1, wherein: Also includes: In response to receiving an air conditioner start instruction sent by a remote controller, wherein the air conditioner start instruction includes a target temperature and a target operating mode; Get the current indoor temperature; Calculating a difference between the current indoor temperature and the target temperature to obtain a second temperature difference; An initial opening degree is determined based on the second temperature difference and the target operation mode, and the electronic expansion valve is controlled to operate at the initial opening degree.

5. The method for controlling an electronic expansion valve of an air conditioner according to claim 4, characterized in that: The determining of the initial opening degree based on the second temperature difference and the target operation mode includes: Obtaining a historical commonly used opening degree of the electronic expansion valve under the target operation mode; The initial opening is calculated based on the second temperature difference, the historical commonly used opening, and a second calculation formula.

6. The method for controlling an electronic expansion valve of an air conditioner according to claim 5, characterized in that: The second calculation formula is: S=S0+|△T|*A; Wherein, S is the initial opening, S0 is the historical commonly used opening of the target operation mode, ΔT is the second temperature difference, and A is a preset constant.

7. The method for controlling an electronic expansion valve of an air conditioner according to claim 5, wherein: The historical commonly used opening is obtained by the following steps: Acquiring 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; The historical electronic expansion valve opening degree with the longest duration is used as the historical commonly used opening degree.

8. A control device for an electronic expansion valve of an air conditioner, characterized in that: include: a first acquiring unit, configured to acquire a current evaporator temperature, a current condenser temperature, a current compressor speed, and a current operating mode of the air conditioner; a determining unit, configured to determine, based on a preset first mapping relationship, a target parameter set matching the current operating mode from a plurality of preset parameter sets; a calculation unit, configured to calculate a target exhaust temperature based on the target parameter set, the current evaporator temperature, the current condenser temperature, and the current compressor speed; a second acquiring unit, configured to acquire a current actual exhaust temperature, and calculate a difference between the current actual exhaust temperature and the target exhaust temperature to obtain a first temperature difference; The third acquisition unit is configured to acquire a current opening of the electronic expansion valve, determine a target opening based on the first temperature difference and the current opening, and set the opening of the electronic expansion valve to the target opening.

9. An air conditioner, characterized in that: An electronic device is provided, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the method for controlling an electronic expansion valve of an air conditioner according to any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for controlling an electronic expansion valve of an air conditioner according to any one of claims 1 to 7 is implemented.

Images