Air conditioner control method and device, air conditioner and computer readable storage medium

Abstract

This application relates to the field of air conditioning technology, specifically to an air conditioning control method, device, air conditioner, and computer-readable storage medium. The air conditioning control method includes: acquiring a temperature measurement value of the evaporator of the air conditioner and determining a correction reference value; acquiring at least two correction parameters, which are factors affecting the high-pressure temperature of the evaporator; determining a target high-pressure temperature of the air conditioner based on the correction reference value and the at least two correction parameters; and controlling the operation of the compressor in the air conditioner based on the target high-pressure temperature. This application can determine the correction reference value using an existing temperature sensor on the evaporator and comprehensively correct it by combining multiple correction parameters affecting the high-pressure temperature, thus accurately obtaining the target high-pressure temperature without the need for an additional high-pressure sensor, improving the accuracy of compressor control.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, specifically to an air conditioning control method, device, air conditioner, and computer-readable storage medium. Background Technology

[0002] When a multi-split air conditioning system is in heating mode, the compressor's operating frequency typically needs to be adjusted based on the high-pressure temperature to ensure heating performance and system energy efficiency. Early models had a high-pressure sensor on the outdoor unit to directly detect the high-pressure temperature. With product updates, some newer models have eliminated the high-pressure sensor on the outdoor unit, replacing it with a temperature sensor added to the middle of the evaporator in the indoor unit. The temperature at the middle of the evaporator is used as a substitute for the high-pressure temperature for compressor frequency adjustment.

[0003] However, in practical applications, many older indoor units already in use are only equipped with evaporator inlet and outlet temperature sensors, lacking a sensor for the temperature at the center of the evaporator. When a new outdoor unit is used with an older indoor unit, the system cannot directly obtain the temperature at the center of the evaporator. If the evaporator inlet or outlet temperature is used directly to replace the high-pressure temperature, the compressor frequency adjustment lacks a reliable basis, leading to problems such as reduced heating capacity, increased energy consumption, and even triggering system protection mechanisms. Summary of the Invention

[0004] This application provides an air conditioning control method, device, air conditioner, and computer-readable storage medium. By determining a correction reference value using an existing temperature sensor on the evaporator and combining it with multiple correction parameters that affect the high-pressure temperature, the target high-pressure temperature can be accurately obtained without the need to install an additional high-pressure sensor, thereby improving the accuracy of compressor control.

[0005] The technical solution adopted by this invention to solve the problem is as follows: In a first aspect, this application provides an air conditioning control method, the air conditioning control method comprising: acquiring a temperature measurement value of the evaporator of an air conditioner and determining a correction reference value; acquiring at least two correction parameters, the correction parameters being factors affecting the high-pressure temperature of the evaporator of the air conditioner; determining a target high-pressure temperature of the air conditioner based on the correction reference value and the at least two correction parameters; and controlling the operation of the compressor in the air conditioner based on the target high-pressure temperature.

[0006] In some embodiments, obtaining the temperature measurement value of the evaporator of the air conditioner and determining the correction reference value includes: obtaining the inlet temperature measurement value of the evaporator and using the inlet temperature measurement value as a first correction reference value; or, obtaining the inlet temperature measurement value and the outlet temperature measurement value of the evaporator, calculating the average value of the inlet temperature measurement value and the outlet temperature measurement value, and using the obtained average value as a second correction reference value.

[0007] In some embodiments, the at least two correction parameters include outdoor temperature, indoor temperature, and indoor unit operating capacity. Determining the target high-pressure temperature based on the correction reference value and the at least two correction parameters includes: when the correction reference value is the first correction reference value, multiplying the outdoor temperature by a first outdoor temperature coefficient to obtain a first outdoor temperature weighting coefficient; multiplying the indoor temperature by a first indoor temperature coefficient to obtain a first indoor temperature weighting coefficient; multiplying the indoor unit operating capacity by a first capacity coefficient to obtain a first capacity weighting coefficient; and determining the target high-pressure temperature by adding the first correction reference value, the first outdoor temperature weighting coefficient, the first indoor temperature weighting coefficient, the first capacity weighting coefficient, and a first preset constant.

[0008] In some embodiments, the at least two correction parameters include outdoor temperature, indoor temperature, and indoor unit operating capacity. Determining the target high-pressure temperature based on the correction reference value and the at least two correction parameters includes: when the correction reference value is the second correction reference value, multiplying the outdoor temperature by a second outdoor temperature coefficient to obtain a second outdoor temperature weighting coefficient; multiplying the indoor temperature by a second indoor temperature coefficient to obtain a second indoor temperature weighting coefficient; multiplying the indoor unit operating capacity by a second capacity coefficient to obtain a second capacity weighting coefficient; and summing the second correction reference value, the second outdoor temperature weighting coefficient, the second indoor temperature weighting coefficient, the second capacity weighting coefficient, and a second preset constant to determine the target high-pressure temperature.

[0009] In some embodiments, obtaining at least two correction parameters includes: obtaining the outdoor temperature and indoor temperature of the operating environment of the air conditioner; and obtaining the proportion of the indoor unit capacity in operation to the total system capacity, as the indoor unit operating capacity.

[0010] In some embodiments, the method further includes: obtaining the outdoor temperature of the operating environment of the air conditioner; determining a target correction model from multiple candidate correction models based on the temperature range of the outdoor temperature; wherein different candidate correction models correspond to different temperature ranges, and the correction reference values ​​corresponding to different candidate correction models are determined in different ways; The step of determining the target high-pressure temperature of the air conditioner based on the corrected reference value and the at least two corrected parameters includes: inputting the corrected reference value and the at least two corrected parameters into the target correction model to obtain the target high-pressure temperature.

[0011] In some embodiments, the plurality of candidate correction models includes at least a first correction model and a second correction model. The step of determining a target correction model from the plurality of candidate correction models based on the temperature range of the outdoor temperature includes: when the outdoor temperature is less than or equal to a preset outdoor temperature threshold, using the first correction model as the target correction model; wherein the correction reference value corresponding to the first correction model is a first correction reference value, and the first correction reference value is the measured inlet temperature of the evaporator; when the outdoor temperature is greater than the preset outdoor temperature threshold, using the second correction model as the target correction model; wherein the correction reference value corresponding to the second correction model is a second correction reference value, and the second correction reference value is the average of the measured inlet temperature and the measured outlet temperature of the evaporator.

[0012] Secondly, embodiments of this application provide an air conditioning control device, comprising: a reference determination module for acquiring a temperature measurement value of the evaporator of the air conditioner and determining a correction reference value; a parameter acquisition module for acquiring at least two correction parameters, wherein the correction parameters are factors affecting the high-pressure temperature of the evaporator of the air conditioner; a temperature determination module for determining a target high-pressure temperature of the air conditioner based on the correction reference value and the at least two correction parameters; and an operation control module for controlling the operation of the compressor in the air conditioner based on the target high-pressure temperature.

[0013] Thirdly, embodiments of this application provide an air conditioner, the air conditioner including: one or more processors, a memory, and one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the air conditioning control method described in any of the above embodiments.

[0014] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to execute the steps of the air conditioning control method described in any of the above embodiments.

[0015] This application provides an air conditioning control method, device, air conditioner, and computer-readable storage medium. By acquiring the temperature measurement value of the air conditioner evaporator and determining a correction reference value, a reference benchmark for the high-pressure temperature can be obtained using the existing temperature sensor on the evaporator without the need for an additional high-pressure sensor in the system. This reduces hardware costs and ensures compatibility with older indoor units that only have an evaporator temperature sensor, solving the problem of older indoor units being unable to obtain high-pressure temperatures during product iterations. By acquiring at least two correction parameters affecting the evaporator high-pressure temperature and performing comprehensive correction, multiple factors affecting the high-pressure temperature are taken into consideration, allowing the final high-pressure temperature estimate to adaptively adjust with changes in operating conditions. Compared to a single fixed compensation method, this method is more accurate when the operating environment changes or the number of indoor units in operation changes, effectively avoiding compressor frequency adjustment deviations caused by inaccurate high-pressure temperatures. Based on the correction reference value and correction parameters, a target high-pressure temperature is determined, achieving an indirect and accurate estimation of the high-pressure temperature, providing a reliable basis for compressor control. Controlling the compressor operation based on this target high-pressure temperature makes compressor frequency adjustment more precise, improving the air conditioning heating effect and energy efficiency, while reducing the risk of triggering system protection shutdown. This application uses the existing temperature sensor in the evaporator to determine the correction reference value, and combines it with multiple correction parameters that affect the high-pressure temperature for comprehensive correction. The target high-pressure temperature can be accurately obtained without the need to install an additional high-pressure sensor, thereby improving the accuracy of compressor control. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic flowchart of an air conditioning control method provided in an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the specific process of step S2 provided in an embodiment of the present invention.

[0019] Figure 3 This is a supplementary flowchart illustrating an embodiment of the air conditioning control method provided by the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of an air conditioning control device provided in an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," "third," etc., may explicitly or implicitly include one or more features.

[0024] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0025] It should be noted that since the method in this application embodiment is executed in a computer device, the processing objects of each computer device exist in the form of data or information, such as time, which is essentially time information. It is understood that if size, quantity, position, etc. are mentioned in subsequent embodiments, they are all corresponding data that exist so that the computer device can process them. Specific details will not be elaborated here.

[0026] This application provides an air conditioning control method, such as... Figure 1 As shown, the air conditioning control method includes: Step S1: Obtain the temperature measurement value of the evaporator of the air conditioner and determine the correction reference value.

[0027] Step S2: Obtain at least two correction parameters, which are factors affecting the high-pressure temperature of the air conditioner's evaporator.

[0028] Step S3: Determine the target high-pressure temperature of the air conditioner based on the corrected reference value and at least two corrected parameters.

[0029] Step S4: Control the operation of the compressor in the air conditioner based on the target high-pressure temperature.

[0030] The temperature measurement can be obtained by placing temperature sensors inside or on the surface of the evaporator. For example, a single temperature sensor can be placed in the middle region of the evaporator, and its detected temperature value can be directly used as a correction reference value. Alternatively, multiple temperature sensors can be placed at different locations on the evaporator (e.g., top, middle, and bottom), and the temperature values ​​obtained from these sensors can be arithmetically averaged, with the resulting average value used as the correction reference value.

[0031] The corrected reference value refers to the baseline value used to correct the calculation of the high-pressure temperature of the air conditioner evaporator. This corrected reference value can be obtained from the temperature measurement of the evaporator and serves as the starting point for subsequent calculations of the target high-pressure temperature.

[0032] Correction parameters refer to external or internal factors that affect the high-pressure temperature of the air conditioner evaporator. These factors may include ambient temperature, equipment operating status, etc. Changes in the values ​​of correction parameters will directly or indirectly cause fluctuations in the high-pressure temperature of the evaporator.

[0033] The target high-pressure temperature refers to the high-pressure temperature determined based on a corrected reference value and at least two correction parameters. This target high-pressure temperature value is calculated by comprehensively considering the corrected reference value and correction parameters, and is used to guide the compressor's frequency adjustment to ensure the stability and efficiency of the air conditioning system under different operating conditions.

[0034] It should be noted that controlling the compressor operation in an air conditioner based on a target high-pressure temperature involves adjusting the compressor frequency accordingly if the actual high-pressure temperature deviates from the target high-pressure temperature. This ensures optimal operation on the high-pressure side, guaranteeing heating performance and energy efficiency. In this way, the method achieves precise control of the compressor operation in a multi-split air conditioning system, resolving the difficulty in obtaining high-pressure temperature due to the lack of key sensors in older indoor units, and improving system compatibility and control accuracy. For more information on methods for controlling the compressor operation in an air conditioner based on a target high-pressure temperature, please refer to relevant technologies; further details will not be elaborated here.

[0035] In this embodiment, by acquiring the temperature measurement value of the air conditioner evaporator and determining the correction reference value, a reference benchmark for the high-pressure temperature can be obtained using the existing temperature sensor on the evaporator without the need for an additional high-pressure sensor in the system. This reduces hardware costs and ensures compatibility with older indoor units that only have an evaporator temperature sensor, solving the problem of older indoor units being unable to obtain high-pressure temperatures during product iterations. By acquiring at least two correction parameters affecting the evaporator high-pressure temperature and performing comprehensive correction, multiple factors influencing the high-pressure temperature are taken into consideration, allowing the final high-pressure temperature estimate to adaptively adjust with changes in operating conditions. Compared to a single fixed compensation method, this method is more accurate when the operating environment changes or the number of indoor units in operation changes, avoiding compressor frequency adjustment deviations caused by inaccurate high-pressure temperatures. Based on the correction reference value and correction parameters, the target high-pressure temperature is determined, achieving accurate estimation of the high-pressure temperature and providing a reliable basis for compressor control. Controlling the compressor operation based on this target high-pressure temperature makes compressor frequency adjustment more precise, improving the air conditioner's heating effect and energy efficiency, while reducing the risk of triggering system protection shutdown.

[0036] In some embodiments, step S1, obtaining the temperature measurement value of the evaporator of the air conditioner and determining the correction reference value, includes: Obtain the inlet temperature measurement value of the evaporator and use the inlet temperature measurement value as the first correction reference value; Alternatively, obtain the inlet and outlet temperature measurements of the evaporator, calculate the average of the inlet and outlet temperature measurements, and use the resulting average as the second correction reference value.

[0037] The inlet temperature measurement refers to the temperature measured at the evaporator inlet. This inlet temperature can be obtained in real time by installing a temperature sensor, such as a thermistor or thermocouple, at the evaporator inlet.

[0038] The outlet temperature measurement refers to the temperature measured at the evaporator outlet. This outlet temperature can be obtained in real time by installing a temperature sensor, such as a thermistor or thermocouple, at the evaporator outlet.

[0039] The first correction reference value represents the benchmark value for correcting the calculation of the high-pressure temperature of the air conditioner evaporator under a specific operating condition (such as when only the inlet temperature measurement value can be measured, or when the outdoor temperature is ≤5℃, etc.). It can be the inlet temperature measurement value.

[0040] The second correction reference value represents the benchmark value for correcting the calculation of the high-pressure temperature of the air conditioner evaporator under a specific operating condition (such as when the inlet temperature and outlet temperature can be measured, or when the outdoor temperature is >5℃). It can be the average of the inlet temperature measurement and the outlet temperature measurement.

[0041] Specifically, in one implementation, the inlet temperature measurement is directly used as the first correction reference value for subsequent calculation of the target high-pressure temperature. This method is suitable for operating conditions with high response speed requirements, relatively uniform temperature distribution inside the evaporator, or where only the inlet temperature measurement can be collected, etc.

[0042] In another implementation, after obtaining these two temperature measurements, the inlet and outlet temperature measurements are added together and then divided by two to obtain an average value. This average value is used as a second correction reference value for subsequent calculations of the target high-pressure temperature. This method of averaging can smooth out any temperature gradients that may exist inside the evaporator, providing a more representative average temperature. This method is suitable for complex operating conditions where the internal temperature of the evaporator varies greatly, or for operating conditions where inlet and outlet temperature measurements can be collected, etc.

[0043] In this embodiment, when only the inlet temperature measurement is available, or under other operating conditions, the evaporator inlet temperature is directly used as the first correction reference value, which simplifies calculations and enables rapid response. When both inlet and outlet temperature measurements are available, or under other operating conditions, the average of the inlet and outlet temperature measurements is used as the second correction reference value, providing a more stable and representative temperature benchmark. This method of selecting different correction reference values ​​based on actual operating conditions avoids errors that may arise from a single measurement method, improves the accuracy of the correction reference value, and thus makes the target high-pressure temperature determined subsequently based on the correction reference value and correction parameters more accurate. This optimizes the compressor's operation control and improves the energy efficiency and operational stability of the air conditioning system.

[0044] In some embodiments, such as Figure 2 As shown, step S2 above, obtaining at least two correction parameters, includes: Step S21: Obtain the outdoor temperature and indoor temperature of the operating environment where the air conditioner is located.

[0045] Step S22: Obtain the proportion of the indoor unit capacity in operation to the total system capacity, as the indoor unit operating capacity.

[0046] The outdoor temperature refers to the ambient temperature of the environment where the outdoor unit of the air conditioner is located. The outdoor temperature can be measured in real time using a temperature sensor installed near the outdoor unit.

[0047] Indoor temperature refers to the ambient temperature of the environment where the indoor unit of the air conditioner is located. Indoor temperature can be measured in real time using a temperature sensor installed on the indoor unit.

[0048] Indoor unit operating capacity refers to the proportion of the total capacity of the entire air conditioning system to the number of indoor units currently in operation. In multi-split or multi-indoor-unit systems, not all indoor units are simultaneously turned on or operate at maximum capacity. The indoor unit operating capacity reflects the actual load demand of the system and affects both the evaporator load and high-pressure temperature. The indoor unit operating capacity can be obtained by calculating the ratio of the total rated capacity of the currently operating indoor units to the total rated capacity of the system.

[0049] In this embodiment, acquiring at least two correction parameters includes acquiring the outdoor temperature, the indoor temperature, and the indoor unit's operating capacity. Given that these parameters are crucial for determining the target high-pressure temperature, their accurate acquisition significantly improves the accuracy of the target high-pressure temperature calculation. For example, accurate indoor and outdoor temperatures help the system accurately assess the current heat load, while accurate indoor unit operating capacity reflects the actual cooling / heating demand. The target high-pressure temperature determined based on these accurate correction parameters more realistically reflects the current operating status of the air conditioning system, resulting in more precise and efficient compressor control. This helps avoid compressor over-operation or under-operation due to inaccurate parameters, thereby improving the air conditioning system's energy efficiency ratio, reducing energy consumption, better maintaining indoor environmental comfort, and extending equipment lifespan.

[0050] In some embodiments, at least two correction parameters include outdoor temperature, indoor temperature, and indoor unit operating capacity. Step S3, determining the target high-pressure temperature based on the correction reference value and at least two correction parameters, includes: when the correction reference value is a first correction reference value, multiplying the outdoor temperature by a first outdoor temperature coefficient to obtain a first outdoor temperature weighting coefficient; multiplying the indoor temperature by a first indoor temperature coefficient to obtain a first indoor temperature weighting coefficient; multiplying the indoor unit operating capacity by a first capacity coefficient to obtain a first capacity weighting coefficient; and summing the first correction reference value, the first outdoor temperature weighting coefficient, the first indoor temperature weighting coefficient, the first capacity weighting coefficient, and a first preset constant to determine the target high-pressure temperature.

[0051] The first external temperature coefficient is a preset weighting factor determined based on the characteristics and operating experience of the air conditioning system, used to adjust the contribution of the outdoor temperature to the high-pressure temperature.

[0052] The first external temperature weighting coefficient is a weighting parameter obtained by multiplying the outdoor temperature by the first external temperature coefficient.

[0053] The first internal temperature coefficient is a preset weighting factor determined based on the characteristics and operating experience of the air conditioning system, used to adjust the contribution of the indoor temperature to the high-pressure temperature.

[0054] The first internal temperature weighting coefficient is a weighting parameter obtained by multiplying the indoor temperature by the first internal temperature coefficient.

[0055] The first capacity coefficient is a preset weighting factor determined based on the characteristics of the air conditioning system and operating experience. It is used to adjust the contribution of the indoor unit's operating capacity to the high-pressure temperature.

[0056] The first capacity weighting coefficient is a weighting parameter obtained by multiplying the indoor unit's operating capacity by the first capacity coefficient.

[0057] The first preset constant can be used to compensate for the inherent biases of the system in the model or to provide a benchmark value.

[0058] It should be noted that the first external temperature coefficient, the first internal temperature coefficient, the first capacity coefficient, and the first preset constant are all constants. These data values ​​can be determined experimentally, specified by the user, or determined through other methods.

[0059] Specifically, the method for determining the target high-pressure temperature based on a corrected reference value and at least two corrected parameters can be expressed as: T 高压 =T 蒸入 +x1×T out +x2×T in +x3×C+x4. Where, T 高压 Indicates the target high-pressure temperature. T 蒸入 This represents the measured inlet temperature of the evaporator, also known as the first corrected reference value. T out This indicates the outdoor temperature. (T) in Indicates the indoor temperature. C indicates the indoor unit's operating capacity. x1 indicates the first outdoor temperature coefficient. x2 indicates the first indoor temperature coefficient. x3 indicates the first capacity coefficient. x4 indicates the first preset constant. x1×T out This represents the first external temperature weighting coefficient. x2×T in This represents the first internal temperature weighting coefficient. x3×C represents the first capacity weighting coefficient.

[0060] For example, the first external temperature coefficient can be taken as 0.11, the first internal temperature coefficient can be taken as -0.08, the first capacity coefficient can be taken as 4.1, and the first preset constant can be taken as -1.2. That is, the method for determining the target high-pressure temperature based on the corrected reference value and at least two corrected parameters can be expressed as: T 高压 =T 蒸入 +0.11×T out -0.08×T in +4.1×C-1.2.

[0061] In this embodiment, when the evaporator inlet temperature (i.e., the first corrected reference value) is used as the correction reference value, the outdoor temperature, indoor temperature, and indoor unit operating capacity are introduced as specific correction parameters. A weighted summation method is used to comprehensively calculate these parameters along with the measured evaporator inlet temperature (the first corrected reference value) and a first preset constant. This allows for a more comprehensive and accurate reflection of the current operating conditions and load changes of the air conditioning system. This method of determining the target high-pressure temperature makes the setting of the target high-pressure temperature closer to the actual needs of the system. Therefore, controlling the compressor based on this target high-pressure temperature can improve the operating efficiency and stability of the air conditioning system, avoiding problems such as increased energy consumption or poor cooling / heating effects caused by improper setting of the target high-pressure temperature, thereby optimizing the overall performance of the air conditioning system.

[0062] In some embodiments, at least two correction parameters include outdoor temperature, indoor temperature, and indoor unit operating capacity. Step S3, determining the target high-pressure temperature based on the correction reference value and at least two correction parameters, includes: when the correction reference value is a second correction reference value, multiplying the outdoor temperature by a second outdoor temperature coefficient to obtain a second outdoor temperature weighting coefficient; multiplying the indoor temperature by a second indoor temperature coefficient to obtain a second indoor temperature weighting coefficient; multiplying the indoor unit operating capacity by a second capacity coefficient to obtain a second capacity weighting coefficient; and summing the second correction reference value, the second outdoor temperature weighting coefficient, the second indoor temperature weighting coefficient, the second capacity weighting coefficient, and a second preset constant to determine the target high-pressure temperature.

[0063] The second external temperature coefficient is a preset weighting factor determined based on the characteristics and operating experience of the air conditioning system. It is used to adjust the contribution of the outdoor temperature to the high-pressure temperature and is not related to the first external temperature coefficient.

[0064] The second external temperature weighting coefficient is a weighting parameter obtained by multiplying the outdoor temperature by the second external temperature coefficient.

[0065] The second internal temperature coefficient is a preset weighting factor determined based on the characteristics and operating experience of the air conditioning system. It is used to adjust the contribution of the indoor temperature to the high-pressure temperature and is not related to the first internal temperature coefficient.

[0066] The second internal temperature weighting coefficient is a weighting parameter obtained by multiplying the indoor temperature by the second internal temperature coefficient.

[0067] The second capacity coefficient is a preset weighting factor determined based on the characteristics and operating experience of the air conditioning system. It is used to adjust the contribution of the indoor unit's operating capacity to the high-pressure temperature and is not related to the second capacity coefficient.

[0068] The second capacity weighting coefficient is a weighting parameter obtained by multiplying the indoor unit's operating capacity by the second capacity coefficient.

[0069] The second preset constant can be used to compensate for the inherent bias of the system in the model or to provide a benchmark value, and is not related to the first preset constant.

[0070] It should be noted that the second external temperature coefficient, the second internal temperature coefficient, the second capacity coefficient, and the second preset constant are all constants. These data values ​​can be determined experimentally, by the user, or through other methods. Furthermore, the second external temperature coefficient is not related to the first external temperature coefficient, the second internal temperature coefficient is not related to the first internal temperature coefficient, the second capacity coefficient is not related to the first capacity coefficient, and the second preset constant is not related to the first preset constant.

[0071] Specifically, the method for determining the target high-pressure temperature based on a corrected reference value and at least two corrected parameters can be expressed as: T 高压 =aver(T 蒸入 +T 蒸出 )+x1×T out +x2×T in +x3×C+x4. Where, T 高压 Indicates the target high-pressure temperature. T 蒸入 This represents the measured inlet temperature of the evaporator. (T) 蒸出 This represents the measured outlet temperature of the evaporator. aver(T) 蒸入 +T 蒸出 The value represents the average of the inlet and outlet temperature measurements, also known as the second corrected reference value. out This indicates the outdoor temperature. (T) in Indicates indoor temperature. C indicates indoor unit operating capacity. x1 indicates second outdoor temperature coefficient. x2 indicates second indoor temperature coefficient. x3 indicates second capacity coefficient. x4 indicates second preset constant. x1×T out This represents the second external temperature weighting coefficient. x2×T in This represents the second internal temperature weighting coefficient. x3×C represents the second capacity weighting coefficient.

[0072] For example, the second external temperature coefficient can be taken as 0.22, the second internal temperature coefficient as -0.19, the second capacity coefficient as -3.8, and the second preset constant as 3.2. That is, the method for determining the target high-pressure temperature based on the corrected reference value and at least two corrected parameters can be expressed as: T 高压 =aver(T 蒸入 +T 蒸出 )+0.22×T out -0.19×T in -3.8×C-1.2.

[0073] In this embodiment, when the corrected reference value is the average of the evaporator inlet and outlet temperatures (i.e., the second corrected reference value), the target high-pressure temperature of the air conditioner can be accurately determined by multiplying the outdoor temperature, indoor temperature, and indoor unit operating capacity by their respective second outdoor temperature coefficient, second indoor temperature coefficient, and second capacity coefficient. These weighted coefficients are then linearly superimposed with the second corrected reference value and a second preset constant. This method considers the combined influence of the air conditioner's operating environment (outdoor and indoor temperatures) and internal load (indoor unit operating capacity) on the high-pressure temperature. Furthermore, by introducing weighted coefficients and preset constants, the calculation of the target high-pressure temperature becomes more refined and accurate. Since the second corrected reference value itself has already smoothed the evaporator temperature, this multi-parameter weighted correction improves the prediction accuracy and stability of the target high-pressure temperature, thereby making the compressor's operation control more precise and efficient, and contributing to improved overall energy efficiency and operational reliability of the air conditioning system.

[0074] In some embodiments, such as Figure 3 As shown, the air conditioning control method further includes steps S5 and S6: Step S5: Obtain the outdoor temperature of the operating environment where the air conditioner is located.

[0075] Step S6: Determine the target correction model from multiple candidate correction models based on the temperature range of the outdoor temperature; different candidate correction models correspond to different temperature ranges, and the correction reference values ​​corresponding to different candidate correction models are determined in different ways.

[0076] Step S3 above, based on the corrected reference value and at least two corrected parameters, to obtain the target high-pressure temperature of the air conditioner, includes: inputting the corrected reference value and at least two corrected parameters into the target correction model to obtain the target high-pressure temperature.

[0077] The outdoor temperature refers to the ambient temperature of the environment where the outdoor unit of the air conditioner is located. The outdoor temperature can be measured in real time using a temperature sensor installed near the outdoor unit.

[0078] Multiple candidate correction models are mathematical models or algorithms used to calculate the target high-pressure temperature. These models can be built based on physical mechanisms, empirical data fitting, machine learning algorithms, etc., and each model is optimized for a specific outdoor temperature range. For example, there can be correction models for different temperature ranges such as low temperature, medium temperature, and high temperature.

[0079] Temperature range refers to dividing the outdoor temperature into several continuous or discrete ranges. For example, a preset outdoor temperature threshold (e.g., 5°C) can be set to divide the outdoor temperature into a low temperature range below the threshold and a high temperature range above the threshold.

[0080] Determining the target correction model from multiple candidate correction models refers to determining which preset temperature range the currently acquired outdoor temperature falls into, and selecting the candidate correction model corresponding to that temperature range as the target correction model for the current operating condition.

[0081] The target correction model is a mathematical model or algorithm for calculating the target high-pressure temperature, which corresponds to the temperature range of the outdoor temperature.

[0082] It is worth noting that different candidate correction models use different methods to determine the correction reference values. This means that for different outdoor temperature ranges, not only may the model used to calculate the target high-pressure temperature be different, but the method of obtaining the correction reference values ​​used as input to the model also differs. For example, in one temperature range, the correction reference value may only use the measured value of the evaporator inlet temperature; while in another temperature range, the correction reference value may be the average of the measured values ​​of the evaporator inlet temperature and outlet temperature. This differentiated approach can more precisely capture the characteristics of the evaporator temperature field under different operating conditions and improve the representativeness of the correction reference values.

[0083] In this embodiment, a modified model suitable for the current environmental conditions can be dynamically selected based on the real-time changing outdoor temperature. This model selection mechanism means that the determination of the target high-pressure temperature no longer relies on a single fixed model, but can instead employ a model optimized for a specific temperature range. Since different modified models can correspond to different methods of determining the modified reference value, the system can more accurately reflect the actual operating state of the evaporator, thereby improving the calculation accuracy of the target high-pressure temperature. A more accurate target high-pressure temperature can guide the compressor to operate more precisely, avoiding control deviations caused by model mismatch under different operating conditions, thus improving the energy efficiency ratio of the air conditioning system, reducing operating energy consumption, ensuring indoor environmental comfort, and extending the service life of the equipment.

[0084] In some embodiments, the plurality of candidate correction models includes at least a first correction model and a second correction model. The above-described step of determining the target correction model from the plurality of candidate correction models based on the temperature range of the outdoor temperature includes: When the outdoor temperature is less than or equal to the preset outdoor temperature threshold, the first correction model is used as the target correction model; wherein, the correction reference value corresponding to the first correction model is the first correction reference value, and the first correction reference value is the measured value of the evaporator inlet temperature; When the outdoor temperature is greater than the preset outdoor temperature threshold, the second correction model is used as the target correction model; wherein, the correction reference value corresponding to the second correction model is the second correction reference value, which is the average of the inlet temperature measurement value and the outlet temperature measurement value of the evaporator.

[0085] The first correction model is used to calculate the target high-pressure temperature based on a first correction reference value and at least two correction parameters. For example, the first correction model can be constructed using the method described in the above embodiments. Specifically, when the correction reference value is the first correction reference value, the outdoor temperature is multiplied by a first outdoor temperature coefficient to obtain a first outdoor temperature weighting coefficient; the indoor temperature is multiplied by a first indoor temperature coefficient to obtain a first indoor temperature weighting coefficient; the indoor unit's operating capacity is multiplied by a first capacity coefficient to obtain a first capacity weighting coefficient; and the sum of the first correction reference value, the first outdoor temperature weighting coefficient, the first indoor temperature weighting coefficient, the first capacity weighting coefficient, and a first preset constant is determined as the target high-pressure temperature. In other words, the first correction model can be expressed as: T 高压 =T 蒸入 +x1×T out +x2×T in +x3×C+x4.

[0086] The second correction model is used to calculate the target high-pressure temperature based on a second correction reference value and at least two correction parameters. For example, the second correction model can be constructed using the method described in the above embodiments. Specifically, when the correction reference value is the second correction reference value, the outdoor temperature is multiplied by the second outdoor temperature coefficient to obtain a second outdoor temperature weighting coefficient; the indoor temperature is multiplied by the second indoor temperature coefficient to obtain a second indoor temperature weighting coefficient; the indoor unit's operating capacity is multiplied by the second capacity coefficient to obtain a second capacity weighting coefficient; and the sum of the second correction reference value, the second outdoor temperature weighting coefficient, the second indoor temperature weighting coefficient, the second capacity weighting coefficient, and the second preset constant is determined as the target high-pressure temperature. In other words, the second correction model can be expressed as: T 高压 =aver(T 蒸入 +T 蒸出 )+x1×T out +x2×T in +x3×C+x4.

[0087] The first and second correction models can be trained based on a large amount of operational data through regression analysis and machine learning algorithms (such as neural networks and support vector machines), or they can be constructed based on the thermodynamic physical model of the air conditioning system. The first and second correction models are designed for different operating conditions (distinguished by outdoor temperature) to improve calculation accuracy and adaptability.

[0088] The preset outdoor temperature threshold is a temperature dividing point used to distinguish different outdoor environmental conditions in which the air conditioner operates. This preset outdoor temperature threshold can be determined based on the air conditioner's design characteristics, operational experience data, or through experimental testing. For example, it can be set to 0℃, 5℃, 10℃, etc., to differentiate between low-temperature operation, normal-temperature operation, or high-temperature operation modes.

[0089] In this embodiment, a first correction model and a second correction model are introduced and dynamically selected based on the relationship between the outdoor temperature and a preset outdoor temperature threshold. This application enables the air conditioning control system to adopt the most suitable correction strategy under different ambient temperatures. When the outdoor temperature is low (e.g., outdoor temperature ≤ -5℃), the evaporator inlet temperature is used as the first correction reference value, which can more accurately reflect the actual operating state of the evaporator under low-temperature conditions. This makes the target high-pressure temperature calculated by the first correction model more consistent with actual needs, avoiding problems such as overcooling or insufficient heating that may occur at low temperatures. When the outdoor temperature is high (e.g., outdoor temperature > -5℃), the average of the evaporator inlet temperature and outlet temperature is used as the second correction reference value. This can more comprehensively reflect the overall heat exchange efficiency of the evaporator under normal or high-temperature conditions, making the target high-pressure temperature calculated by the second correction model more accurate. This optimizes the compressor operation and improves the energy efficiency ratio and operational stability of the air conditioning system. This strategy, based on dynamically switching the correction model and determining the correction reference value according to outdoor temperature, improves the adaptability of the air conditioning system to complex environmental changes.

[0090] This application embodiment also provides an air conditioning control device 200, such as... Figure 4 As shown, the air conditioning control device 200 includes: Reference determination module 201 is used to obtain the temperature measurement value of the evaporator of the air conditioner and determine the correction reference value; The parameter acquisition module 202 is used to acquire at least two correction parameters, which are factors that affect the high-pressure temperature of the evaporator of the air conditioner. Temperature determination module 203 is used to determine the target high-pressure temperature of the air conditioner based on a corrected reference value and at least two corrected parameters; The operation control module 204 is used to control the operation of the compressor in the air conditioner based on the target high-pressure temperature.

[0091] It should be noted that the air conditioning control device 200 includes a structure capable of implementing the air conditioning control method of any of the above embodiments, which will not be described in detail here.

[0092] This application also provides an air conditioner, which includes one or more processors, a memory, and one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the air conditioning control method in any of the above embodiments.

[0093] This application also provides an electronic device that integrates any of the air conditioning control devices provided in this application. For example... Figure 5 As shown, it illustrates a structural schematic diagram of the electronic device involved in the embodiments of this application, specifically: The electronic device may include components such as a processor 801 with one or more processing cores, a memory 802 with one or more computer-readable storage media, a power supply 803, and an input unit 804. Those skilled in the art will understand that... Figure 5 The electronic device structure shown does not constitute a limitation on the electronic device and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Wherein: The processor 801 is the control center of the electronic device. It connects various parts of the electronic device via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 802, and by calling data stored in the memory 802, it performs various functions and processes data, thereby providing overall monitoring of the electronic device. Optionally, the processor 801 may include one or more processing cores; preferably, the processor 801 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications, and the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 801.

[0094] The memory 802 can be used to store software programs and modules. The processor 801 executes various functional applications and data processing by running the software programs and modules stored in the memory 802. The memory 802 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 802 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 802 may also include a memory controller to provide the processor 801 with access to the memory 802.

[0095] The electronic device also includes a power supply 803 that supplies power to the various components. Preferably, the power supply 803 can be logically connected to the processor 801 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 803 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0096] The electronic device may also include an input unit 804, which can be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0097] Although not shown, the electronic device may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 801 in the electronic device loads the executable files corresponding to the processes of one or more applications into the memory 802 according to the following instructions, and the processor 801 runs the applications stored in the memory 802 to realize various functions, such as the method in any of the above embodiments.

[0098] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0099] Therefore, embodiments of this application provide a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, etc. A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in any of the air conditioning control methods provided in embodiments of this application.

[0100] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0101] In practice, each of the above units or structures can be implemented as an independent entity or can be arbitrarily combined to be implemented as the same or several entities. For the specific implementation of each of the above units or structures, please refer to the previous method embodiments, which will not be repeated here.

[0102] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0103] The above provides a detailed description of an air conditioning control method, apparatus, air conditioner, and computer-readable storage medium provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An air conditioning control method, characterized in that, The air conditioning control method includes: Obtain the temperature measurement value of the evaporator of the air conditioner and determine the correction reference value; Obtain at least two correction parameters, which are factors affecting the high-pressure temperature of the evaporator of the air conditioner; The target high-pressure temperature of the air conditioner is determined based on the corrected reference value and the at least two corrected parameters. The operation of the compressor in the air conditioner is controlled based on the target high-pressure temperature.

2. The method according to claim 1, characterized in that, The process of obtaining the temperature measurement value of the evaporator of the air conditioner and determining the correction reference value includes: Obtain the inlet temperature measurement value of the evaporator and use the inlet temperature measurement value as the first correction reference value; Alternatively, the inlet temperature and outlet temperature of the evaporator can be measured, and the average value of the inlet temperature and outlet temperature can be calculated. The average value obtained can be used as the second correction reference value.

3. The method according to claim 2, characterized in that, The at least two correction parameters include outdoor temperature, indoor temperature, and indoor unit operating capacity. Determining the target high-pressure temperature based on the correction reference value and the at least two correction parameters includes: When the corrected reference value is the first corrected reference value, the outdoor temperature is multiplied by the first outdoor temperature coefficient to obtain the first outdoor temperature weighting coefficient; Multiply the indoor temperature by the first indoor temperature coefficient to obtain the first indoor temperature weighting coefficient; Multiply the indoor unit's operating capacity by the first capacity coefficient to obtain the first capacity weighting coefficient; The sum of the first corrected reference value, the first external temperature weighting coefficient, the first internal temperature weighting coefficient, the first capacity weighting coefficient, and the first preset constant is determined as the target high-pressure temperature.

4. The method according to claim 2, characterized in that, The at least two correction parameters include outdoor temperature, indoor temperature, and indoor unit operating capacity. Determining the target high-pressure temperature based on the correction reference value and the at least two correction parameters includes: When the corrected reference value is the second corrected reference value, the outdoor temperature is multiplied by the second outdoor temperature coefficient to obtain the second outdoor temperature weighting coefficient. Multiply the indoor temperature by the second indoor temperature coefficient to obtain the second indoor temperature weighting coefficient; Multiply the indoor unit's operating capacity by the second capacity coefficient to obtain the second capacity weighting coefficient; The target high-pressure temperature is determined by adding the second corrected reference value, the second external temperature weighting coefficient, the second internal temperature weighting coefficient, the second capacity weighting coefficient, and the second preset constant.

5. The method according to claim 3 or 4, characterized in that, The acquisition of at least two correction parameters includes: Obtain the outdoor and indoor temperatures of the operating environment of the air conditioner; The proportion of the indoor unit capacity in operation to the total system capacity is obtained as the indoor unit operating capacity.

6. The method according to claim 1, characterized in that, The method further includes: Obtain the outdoor temperature of the operating environment of the air conditioner; Based on the temperature range of the outdoor temperature, a target correction model is determined from multiple candidate correction models; wherein, different candidate correction models correspond to different temperature ranges, and the correction reference values ​​corresponding to different candidate correction models are determined in different ways; The determination of the target high-pressure temperature of the air conditioner based on the corrected reference value and the at least two corrected parameters includes: The corrected reference value and the at least two corrected parameters are input into the target correction model to obtain the target high-pressure temperature.

7. The method according to claim 6, characterized in that, The plurality of candidate correction models includes at least a first correction model and a second correction model. The step of determining the target correction model from the plurality of candidate correction models based on the temperature range of the outdoor temperature includes: When the outdoor temperature is less than or equal to a preset outdoor temperature threshold, the first correction model is used as the target correction model; wherein, the correction reference value corresponding to the first correction model is the first correction reference value, and the first correction reference value is the inlet temperature measurement value of the evaporator. When the outdoor temperature is greater than the preset outdoor temperature threshold, the second correction model is used as the target correction model; wherein, the correction reference value corresponding to the second correction model is the second correction reference value, and the second correction reference value is the average of the inlet temperature measurement value and the outlet temperature measurement value of the evaporator.

8. An air conditioning control device, characterized in that, The air conditioning control device includes: The reference determination module is used to acquire the temperature measurement value of the evaporator of the air conditioner and determine the correction reference value; The parameter acquisition module is used to acquire at least two correction parameters, which are factors affecting the high-pressure temperature of the evaporator of the air conditioner; A temperature determination module is used to determine the target high-pressure temperature of the air conditioner based on the corrected reference value and the at least two corrected parameters; The operation control module is used to control the operation of the compressor in the air conditioner based on the target high-pressure temperature.

9. An air conditioner, characterized in that, The air conditioner includes: One or more processors, a memory, and one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the air conditioning control method of any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, It stores a computer program, which is loaded by a processor to execute the steps of the air conditioning control method according to any one of claims 1 to 7.

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