Air conditioning regulation method and device, storage medium and air conditioner

Abstract

The application discloses an air conditioner regulation method and device, a storage medium and an air conditioner, and relates to the technical field of air conditioners. The method comprises the following steps: fitting a temperature difference-time relationship curve according to historical temperature control data of an indoor unit every predetermined fitting period at a fitting time point; determining whether an ability adjustment condition is met according to a temperature difference difference value between a temperature difference corresponding to the fitting time point and a temperature difference corresponding to a previous fitting time point; if the ability adjustment condition is met, determining temperature differences corresponding to multiple future fitting time points after the fitting time point according to the temperature difference-time relationship curve, obtaining predicted temperature differences of the multiple future fitting time points; calculating an indoor unit ability adjustment value of the indoor unit according to the temperature difference of the fitting time point and the predicted temperature differences, and correcting an outdoor unit ability of an outdoor unit according to the indoor unit ability adjustment value. The application can effectively avoid excessive refrigeration and temperature fluctuation of the indoor unit and reduce system energy consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and in particular to an air conditioner control method and device, a storage medium and an air conditioner. BACKGROUND

[0002] When performing refrigeration control, an air conditioner such as a multi-connected air conditioner usually calculates the indoor unit capacity demand by using a PID (proportional-integral-derivative) control method, and further adjusts the capacity of the outdoor unit according to the indoor unit capacity demand.

[0003] However, with the current control method using the PID algorithm, the capacity demand and the outdoor unit capacity cannot be calculated and adjusted until the temperature response result of the indoor unit is obtained, which has the problems of slow response and adjustment lag, and is likely to cause excessive refrigeration and temperature fluctuation of the indoor unit, and high system energy consumption. SUMMARY

[0004] The air conditioner control scheme provided in the embodiments of the present application can effectively avoid excessive refrigeration and temperature fluctuation of the indoor unit, and achieve energy-saving control to effectively reduce the energy consumption of the air conditioner system.

[0005] The embodiments of the present application provide the following technical solutions:

[0006] According to one embodiment of the present application, an air conditioner control method comprises: fitting a temperature difference-time relationship curve of different time points and corresponding temperature differences according to historical temperature control data of an indoor unit every predetermined fitting period at a fitting time point, wherein the temperature difference of each time point refers to the difference between the indoor unit environment temperature and the user set temperature at each time point; determining whether an capacity adjustment condition is met according to the temperature difference difference between the temperature difference corresponding to the fitting time point and the temperature difference corresponding to the previous fitting time point; if yes, determining the temperature differences corresponding to a plurality of future fitting time points after the fitting time point according to the temperature difference-time relationship curve to obtain the predicted temperature differences of the plurality of future fitting time points; calculating an indoor unit capacity adjustment value of the indoor unit according to the temperature difference of the fitting time point and the predicted temperature differences, and correcting the outdoor unit capacity of the outdoor unit according to the indoor unit capacity adjustment value.

[0007] In some embodiments of the present application, after adjusting the outdoor unit capacity according to the indoor unit capacity adjustment value, the method further comprises: determining the indoor unit environment temperature corresponding to the fitting time point and the plurality of previous fitting time points according to the temperature difference-time relationship curve; calculating the indoor unit target superheat degree according to the indoor unit environment temperature corresponding to the fitting time point and the plurality of previous fitting time points; calculating the opening degree change amount according to the indoor unit target superheat degree and the actual opening degree of the indoor unit electronic expansion valve; obtaining the target opening degree according to the sum of the opening degree change amount and the actual opening degree, and adjusting the indoor unit electronic expansion valve to the target opening degree.

[0008] In some embodiments of the present application, the indoor unit capacity adjustment value is calculated according to the temperature difference at the fitting time point and the predicted temperature difference, which comprises: calculating a predicted indoor unit temperature change speed according to the temperature difference at the fitting time point and the predicted temperature difference; calculating a capacity demand coefficient according to the temperature difference difference value and the predicted indoor unit temperature change speed; multiplying the indoor unit rated capacity by the capacity demand coefficient to obtain the indoor unit capacity adjustment value.

[0009] In some embodiments of the present application, the capacity demand coefficient is calculated according to the temperature difference difference value and the predicted indoor unit temperature change speed, which comprises: calculating according to the formula Lq = Lk * (ΔT2-ΔT1) + Ld * (VT), wherein Lq refers to the capacity demand coefficient, ΔT2-ΔT1 refers to the temperature difference difference value between the temperature difference ΔT2 corresponding to the fitting time point and the temperature difference ΔT1 corresponding to the previous fitting time point, VT refers to the predicted indoor unit temperature change speed, Lk and Ld are respectively predetermined calculation coefficients, Lk is a positive value, and Ld is a negative value.

[0010] In some embodiments of the present application, the predicted indoor unit temperature change speed is calculated according to the temperature difference at the fitting time point and the predicted temperature difference, which comprises: summing the temperature difference at the fitting time point and the predicted temperature difference at the plurality of future fitting time points with the user set temperature respectively to obtain the indoor unit environment temperature at the fitting time point and the predicted indoor unit environment temperature at each of the future fitting time points; calculating according to the formula VT = 2T n+1 -T n+2 -T n , wherein VT refers to the predicted indoor unit temperature change speed, T n refers to the indoor unit environment temperature at the fitting time point, T n+1 refers to the predicted indoor unit environment temperature at the first future fitting time point after the fitting time point, and T n+2 refers to the predicted indoor unit environment temperature at the second future fitting time point after the fitting time point.

[0011] In some embodiments of the present application, the calculation of the target overheat degree of the indoor unit according to the indoor unit environment temperature at the fitting time point and the indoor unit environment temperatures at the previous fitting time points comprises: calculation according to the formula ΔPEXV= Kt(T n -T n-1 )+ Lp(T n -T set )+ Lv(T n -2T n-1 +T n-2 ), wherein ΔPEXV represents the target overheat degree of the indoor unit, T n represents the indoor unit environment temperature at the fitting time point, T n-1 represents the indoor unit environment temperature at the first fitting time point before the fitting time point, T n-2 represents the indoor unit environment temperature at the second fitting time point before the fitting time point, T set represents the user set temperature, and Kt, Lp and Lv are predetermined calculation coefficients.

[0012] In some embodiments of the present application, the determination of whether the capacity adjustment condition is met according to the temperature difference between the temperature difference corresponding to the fitting time point and the temperature difference corresponding to the previous fitting time point comprises: if the temperature difference is less than a first threshold value, the outdoor unit has been running for more than a predetermined length of time, and the temperature difference corresponding to the fitting time point is less than a second threshold value, it is determined that the adjustment condition of reducing the capacity of the outdoor unit is met; and if the temperature difference is greater than zero in a continuous predetermined number of fitting periods, it is determined that the adjustment condition of increasing the capacity of the outdoor unit is met.

[0013] According to an embodiment of the present application, an air conditioner control device comprises: a memory storing a computer program; and a processor reading the computer program stored in the memory to execute the method according to any one of the embodiments of the present application.

[0014] According to another embodiment of the present application, a storage medium stores a computer program, and when the computer program is executed by a processor of an air conditioner control device, the air conditioner control device executes the method according to the embodiments of the present application.

[0015] According to another embodiment of the present application, an air conditioner can comprise the air conditioner control device according to the embodiments of the present application and other air conditioner modules.

[0016] According to another embodiment of the present application, a computer program product or computer program includes computer instructions stored in a computer readable storage medium. The processor of the air conditioner regulating device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to enable the air conditioner regulating device to perform the methods provided in various optional implementations of the embodiments of the present application.

[0017] In the embodiments of the present application, at every predetermined fitting period, a temperature difference-time relationship curve of different time points and corresponding temperature differences is fitted according to historical temperature control data of the indoor unit, wherein the temperature difference of each time point refers to the difference between the environment temperature of the indoor unit and the user set temperature at each time point; whether the capacity adjustment condition is met is determined according to the temperature difference difference between the temperature difference corresponding to the fitting time point and the temperature difference corresponding to the previous fitting time point; if yes, the temperature differences corresponding to multiple future fitting time points after the fitting time point are determined according to the temperature difference-time relationship curve to obtain the predicted temperature differences of the multiple future fitting time points; the indoor unit capacity adjustment value of the indoor unit is calculated according to the temperature difference of the fitting time point and the predicted temperature differences, and the outdoor unit capacity of the outdoor unit is corrected according to the indoor unit capacity adjustment value.

[0018] In this way of the embodiments of the present application, the indoor unit capacity adjustment value reflecting the capacity demand of the indoor unit is predicted in advance, the outdoor unit capacity of the outdoor unit can be corrected in advance and timely according to the indoor unit capacity adjustment value, so that the overcooling and temperature fluctuation of the indoor unit temperature can be effectively avoided, and the outdoor unit capacity can be adjusted to be more reasonable in advance, so that the energy-saving control can effectively reduce the energy consumption of the air conditioning system. In particular, for the multi-connected air conditioner, the overcooling and temperature fluctuation of the indoor unit temperature can be effectively avoided and the system energy consumption can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 A flowchart of an air conditioner regulating method according to an embodiment of the present application is shown.

[0021] Figure 2 A schematic diagram of a temperature difference-time relationship curve according to an embodiment of the present application is shown.

[0022] Figure 3 A solenoid valve opening degree adjustment flowchart according to an embodiment of the present application is shown.

[0023] Figure 4 A block diagram of an air conditioner regulating device is shown according to an embodiment of the present application.

[0024] Figure 5 A block diagram of an air conditioner is shown according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The present disclosure will be further described in conjunction with the drawings and embodiments. It should be understood that the embodiments provided herein are only used to explain the present disclosure and not intended to limit the present disclosure. In addition, the embodiments provided below are used to implement part of the present disclosure, and the technical solutions described in the embodiments of the present disclosure can be implemented in any combination manner without conflict.

[0026] It should be noted that in the embodiments of the present disclosure, the terms "comprise", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the method or device comprising a series of elements not only includes the elements explicitly described, but also includes other elements not explicitly listed, or includes elements inherent in the implementation of the method or device. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of other related elements (such as steps in the method or units in the device, for example, the unit can be part of the circuit, part of the processor, part of the program or software, etc.) in the method or device comprising the element.

[0027] For example, the air conditioner regulating method provided by the embodiments of the present disclosure comprises a series of steps, but the air conditioner regulating method provided by the embodiments of the present disclosure is not limited to the steps described, and similarly, the air conditioner regulating device provided by the embodiments of the present disclosure comprises a series of units, but the device provided by the embodiments of the present disclosure is not limited to comprising the units explicitly described, and can also comprise units required to be set when obtaining relevant information or processing based on information.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0029] It can be understood that in the specific embodiments of the present application, relevant data is involved, and when the embodiments in the present application are applied to specific products or technologies, the permission or consent of the user needs to be obtained, and the collection, use and processing of relevant data need to comply with relevant laws, regulations and standards of relevant countries and regions.

[0030] Figure 1A flow chart of an air conditioner regulation method according to an embodiment of the present application is schematically shown. The execution subject of the air conditioner regulation method can be any control device with processing capability, for example, the air conditioner itself, a mobile phone, a computer, a smart watch, and other household appliances, etc.

[0031] In a specific embodiment of the present application, the control device as the execution subject of the air conditioner regulation method is specifically the air conditioner itself, and the air conditioner specifically controls defrosting through its controller. The air conditioner can be a multi-connected air conditioner, which can include one outdoor unit and multiple indoor units.

[0032] As shown in Figure 1 The air conditioner regulation method can include steps S110 to S140.

[0033] In step S110, when reaching a fitting time point every predetermined fitting period, a temperature difference-time relationship curve of different time points and corresponding temperature differences is fitted according to historical temperature control data of the indoor unit, wherein the temperature difference of each time point refers to the difference between the indoor unit environment temperature and the user set temperature at each time point.

[0034] In step S120, whether the capacity adjustment condition is met is determined according to the temperature difference difference between the temperature difference corresponding to the fitting time point and the temperature difference corresponding to the previous fitting time point.

[0035] In step S130, if yes, the temperature differences corresponding to multiple future fitting time points after the fitting time point are determined according to the temperature difference-time relationship curve, and the predicted temperature differences of the multiple future fitting time points are obtained.

[0036] In step S140, the indoor unit capacity adjustment value of the indoor unit is calculated according to the temperature difference of the fitting time point and the predicted temperature difference, and the outdoor unit capacity of the outdoor unit is corrected according to the indoor unit capacity adjustment value.

[0037] When the indoor unit is started to run, the initial rated capacity requirement (i.e., the rated capacity of the indoor unit) of the indoor unit is sent to the outdoor unit, so that the outdoor unit outputs corresponding outdoor unit capacity (for example, the compressor frequency) according to the rated capacity of the indoor unit, so as to make the air conditioner execute the refrigeration process. After the air conditioner runs for a predetermined running time (for example, 10 minutes), the air conditioner can enter the intelligent energy-saving control mode. After entering the intelligent energy-saving control mode, when reaching a fitting time point every predetermined fitting period, a temperature difference-time relationship curve of different time points and corresponding temperature differences is fitted according to historical temperature control data of the indoor unit, wherein the temperature difference of each time point refers to the difference between the indoor unit environment temperature and the user set temperature at each time point. The indoor unit environment temperature can be the return air temperature of the indoor unit or other temperature that can reflect the indoor environment temperature, and the user set temperature is the target temperature that the user wants to achieve for the indoor environment.

[0038] For example, the first fitting time point can be a time point when the air conditioner runs for a predetermined running length of 10 minutes, at which the first temperature difference-time relationship curve can be fitted according to the historical temperature control data in the previous 10 minutes; then, if the predetermined fitting period is 1 minute, at a second fitting time point reached by continuing to run for 1 minute, at this time, the second temperature difference-time relationship curve is fitted according to the historical temperature control data in the previous 10 minutes and the 1 minute, that is, 11 minutes in total; then, at a third fitting time point reached by continuing to run for 1 minute, at this time, the third temperature difference-time relationship curve is fitted according to the historical temperature control data in the previous 11 minutes and the 1 minute, that is, 12 minutes in total. In this way, the temperature difference-time relationship curve can be continuously fitted at the predetermined fitting period.

[0039] From the temperature difference-time relationship curve, the temperature difference ΔT2 (ΔT2=T n - T set , where T n is the indoor unit environment temperature at the current fitting time point, and T set is the user set temperature) corresponding to the current fitting time point reached can be determined, and the temperature difference ΔT1 (ΔT1=T n-1 - T set , where T n-1 is the indoor unit environment temperature at the previous fitting time point, and T set is the user set temperature) corresponding to the previous fitting time point before the current fitting time point reached can be determined, and the temperature difference difference, that is, ΔT2-ΔT1. The temperature difference difference can accurately reflect the change of the indoor unit environment temperature, so that whether the capacity adjustment condition is met can be accurately determined according to the temperature difference difference, and if the capacity adjustment condition is met, the outdoor unit capacity needs to be adjusted. For example, referring to FIG. 2, the temperature difference ΔT2 and the temperature difference ΔT1 can be determined from the temperature difference-time relationship curve 210. Figure 2

[0040] If the capacity adjustment condition is met, the temperature differences corresponding to multiple future fitting time points after the fitting time point can be determined according to the temperature difference-time relationship curve, to obtain the predicted temperature differences of the multiple future fitting time points. According to the temperature difference of the fitting time point and the predicted temperature differences of the multiple future fitting time points, the indoor unit capacity adjustment value reflecting the indoor unit capacity demand can be calculated in advance, and the outdoor unit capacity (such as the compressor frequency and / or the fan speed) can be accurately corrected in advance according to the indoor unit capacity adjustment value to a capacity value matched with the indoor unit capacity adjustment value.

[0041] ​In this way of the embodiment of the application, by predicting in advance the indoor unit capacity adjustment value reflecting the capacity demand of the indoor unit, the outdoor unit capacity can be corrected in advance and timely, so as to effectively avoid excessive refrigeration and temperature fluctuation of the indoor unit, and at the same time, the outdoor unit capacity can be adjusted in advance to a more reasonable capacity, so as to effectively reduce the energy consumption of the air conditioning system. In particular, for a multi-split air conditioner, the temperature fluctuation and excessive refrigeration of the indoor unit can be effectively avoided, and the energy consumption of the system can be reduced.

[0042] The following describes Figure 1 When the air conditioner is controlled according to the embodiment, further optional specific embodiments of each step are described.

[0043] In an embodiment, the temperature difference-time relationship curve of different time points and corresponding temperature differences is fitted according to historical temperature control data of the indoor unit, which can specifically include: a curve fitting regression function model y=q0e (-x / a) The historical temperature control data is fitted to obtain a temperature difference-time relationship curve of different time points and corresponding temperature differences, wherein x represents a time point, y represents a temperature difference, e is a natural number, and a and q0 are predetermined coefficients.

[0044] It can be understood that in other embodiments, other optional curve fitting regression function models can be used to fit the historical temperature control data to obtain a temperature difference-time relationship curve of different time points and corresponding temperature differences.

[0045] Further, in an embodiment, the temperature difference difference between the temperature difference corresponding to the fitting time point and the temperature difference corresponding to the previous fitting time point is used to determine whether the capacity adjustment condition is met, which can specifically include:

[0046] If the temperature difference difference is less than a first threshold value, the outdoor unit has been running for more than a predetermined time, and the temperature difference corresponding to the fitting time point is less than a second threshold value, it is determined that the adjustment condition of reducing the capacity of the outdoor unit is met; if the temperature difference difference in a continuous predetermined number of fitting periods is greater than zero, it is determined that the adjustment condition of increasing the capacity of the outdoor unit is met.

[0047] The capacity adjustment condition can include the adjustment condition of reducing the capacity of the outdoor unit and the adjustment condition of increasing the capacity of the outdoor unit.

[0048] If the temperature difference difference (AT2-AT1) is less than the first threshold value (for example, 0.2), it indicates that the indoor environment temperature is reduced, and it indicates that the current outdoor unit capacity output meets the requirements. In order to realize the energy saving of the air conditioning system, the outdoor unit capacity output can be reduced. Further, the outdoor unit runs for more than a predetermined length of time, and the temperature difference (Tn-Tset) corresponding to the fitting time point is less than the second threshold value (for example, 0.5), which indicates that the outdoor unit capacity output meets the indoor unit cooling demand. At this time, it is judged that the adjustment condition of reducing the outdoor unit capacity is met, and then the outdoor unit capacity can be reliably adjusted to reduce the outdoor unit capacity in the subsequent steps, thereby effectively ensuring the reliability of energy saving control.

[0049] If the temperature difference difference in the continuous predetermined number (for example, 5) fitting periods is greater than zero, it indicates that the indoor unit temperature rises, and the capacity output needs to be increased to meet the user comfort requirement. At this time, it is judged that the adjustment condition of increasing the outdoor unit capacity is met, and the outdoor unit capacity can be reliably adjusted in the subsequent steps.

[0050] Further, in an embodiment, the calculation of the indoor unit capacity adjustment value of the indoor unit according to the temperature difference of the fitting time point and the predicted temperature difference can include:

[0051] According to the temperature difference of the fitting time point and the predicted temperature difference, the predicted indoor unit temperature change speed is obtained; according to the temperature difference difference and the predicted indoor unit temperature change speed, the capacity demand coefficient is obtained; the rated capacity of the indoor unit is multiplied by the capacity demand coefficient to obtain the indoor unit capacity adjustment value.

[0052] According to the temperature difference of the fitting time point and the predicted temperature difference, the predicted indoor unit temperature change speed can be obtained. The predicted indoor unit temperature change speed is the change speed of the indoor unit environment temperature in the subsequent time, which can reflect whether the cooling speed of the indoor unit environment temperature in the subsequent time is fast.

[0053] According to the temperature difference difference and the predicted indoor unit temperature change speed, the capacity demand coefficient is obtained, and the rated capacity of the indoor unit is multiplied by the capacity demand coefficient, that is, the indoor unit capacity adjustment value reflecting the indoor unit capacity demand in the subsequent time is accurately predicted.

[0054] The capacity adjustment condition can include the adjustment condition of reducing the outdoor unit capacity and the adjustment condition of increasing the outdoor unit capacity. The corresponding indoor unit capacity adjustment value can be calculated under different adjustment conditions, and the outdoor unit capacity can be corrected according to the indoor unit capacity adjustment value, so as to reduce or increase the outdoor unit capacity.

[0055] In one embodiment, the calculating according to the temperature difference of the fitting time point and the predicted temperature difference obtains a predicted indoor unit temperature change speed, which can include:

[0056] The temperature difference of the fitting time point and the predicted temperature difference of the multiple future fitting time points are respectively summed with the user set temperature to obtain the indoor unit environment temperature of the fitting time point and the predicted indoor unit environment temperature of each future fitting time point; according to the formula VT=2T n+1 -T n+2 -T n , wherein VT refers to the predicted indoor unit temperature change speed, T n refers to the indoor unit environment temperature of the fitting time point, T n+1 refers to the predicted indoor unit environment temperature of the first future fitting time point after the fitting time point, and T n+2 refers to the predicted indoor unit environment temperature of the second future fitting time point after the fitting time point.

[0057] The temperature difference (ΔT2=T n -T set ) of the fitting time point and the user set temperature (T set ) are summed to obtain the indoor unit environment temperature (T n ) of the fitting time point, the multiple future fitting time points can be the first future fitting time point and the second future fitting time point after the fitting time point, the predicted temperature difference (T n+1 -T set ) of the first future fitting time point and the user set temperature (T set ) are summed to obtain the predicted indoor unit environment temperature (T n+1 ) of the first future fitting time point, and the predicted temperature difference (T n+2 -T set ) of the second future fitting time point and the user set temperature (T set ) are summed to obtain the predicted indoor unit environment temperature (T n+2 ) of the second future fitting time point.

[0058] The predicted indoor unit temperature change speed VT is calculated according to the formula VT=2T n+1 -T n+2 -T n , and the applicant finds that the predicted indoor unit temperature change speed VT calculated according to the formula is used for the calculation of the subsequent steps, which can further effectively improve the reflection accuracy of the calculated indoor unit capacity adjustment value on the subsequent indoor unit capacity demand.

[0059] It can be understood that in other embodiments, the predicted indoor unit environment temperature of other number (for example, 3 or 4, etc.) of future fitting time points and other optional calculation formulas can be used to calculate the predicted indoor unit temperature change speed.

[0060] In an embodiment, the calculation according to the temperature difference difference value and the predicted indoor unit temperature change speed to obtain the capacity demand coefficient can specifically include:

[0061] The calculation is performed according to the formula Lq= Lk*(ΔT2-ΔT1)+Ld*(VT), where Lq refers to the capacity demand coefficient, ΔT2-ΔT1 refers to the temperature difference difference value between the temperature difference ΔT2 corresponding to the fitting time point and the temperature difference ΔT1 corresponding to the previous fitting time point, VT refers to the predicted indoor unit temperature change speed, Lk and Ld are respectively predetermined calculation coefficients, Lk is a positive value, and Ld is a negative value.

[0062] As shown in Figure 2 , the capacity demand coefficient Lq is calculated according to the formula Lq= Lk*(ΔT2-ΔT1)+Ld*(VT), and the corresponding relationship between the capacity demand coefficient Lq and the temperature difference and the time is shown by the curve 220 in Figure 2 , and the applicant finds that the capacity demand coefficient Lq calculated according to the formula multiplied by the indoor unit rated capacity can further effectively improve the reflection accuracy of the calculated indoor unit capacity adjustment value on the subsequent indoor unit capacity demand.

[0063] It can be understood that in other embodiments, other optional calculation formulas can be used to calculate the capacity demand coefficient.

[0064] Through the foregoing embodiments, when the capacity adjustment condition (the adjustment condition of reducing the outdoor unit capacity or the adjustment condition of increasing the outdoor unit capacity) is met, the outdoor unit capacity of the outdoor unit can be corrected in advance according to the predicted indoor unit capacity adjustment value. In subsequent embodiments, the opening degree of the indoor unit electronic expansion valve can be further adjusted according to the temperature difference linkage while the outdoor unit capacity of the outdoor unit is corrected, further realizing the on-demand distribution of the refrigerant amount, and further improving the user comfort and the operating energy efficiency of the unit.

[0065] Specifically, in an embodiment, referring to Figure 3After the outdoor unit capacity is adjusted according to the indoor unit capacity adjustment value, the method further comprises: determining the indoor unit environment temperature corresponding to the fitting time point and the previous multiple fitting time points according to the temperature difference-time relationship curve (step S310); calculating the indoor unit target superheat degree according to the indoor unit environment temperature corresponding to the fitting time point and the previous multiple fitting time points (step S320); calculating the opening degree change amount according to the indoor unit target superheat degree and the actual opening degree of the indoor unit electronic expansion valve (step S330); obtaining the target opening degree according to the sum of the opening degree change amount and the actual opening degree, and adjusting the indoor unit electronic expansion valve to the target opening degree (step S340).

[0066] The indoor unit environment temperature corresponding to the fitting time point and the previous multiple fitting time points is determined according to the temperature difference-time relationship curve, and the temperature difference is summed with the user set temperature, so that the indoor unit environment temperature corresponding to the fitting time point and the previous multiple fitting time points is obtained.

[0067] The indoor unit target superheat degree is calculated according to the indoor unit environment temperature corresponding to the fitting time point and the previous multiple fitting time points, the opening degree change amount is calculated according to the indoor unit target superheat degree and the actual opening degree of the indoor unit electronic expansion valve, the target opening degree is obtained according to the sum of the opening degree change amount and the actual opening degree, and the indoor unit electronic expansion valve is adjusted to the target opening degree, so that the opening degree of the indoor unit electronic expansion valve is reliably adjusted according to the temperature difference linkage.

[0068] Further, in an embodiment, the calculation of the indoor unit target superheat degree according to the indoor unit environment temperature corresponding to the fitting time point and the previous multiple fitting time points can specifically comprise:

[0069] The calculation is performed according to the formula ΔPEXV= Kt(T n -T n-1 )+ Lp(T n -T set )+ Lv(T n -2T n-1 +T n-2 ), wherein ΔPEXV refers to the indoor unit target superheat degree, T n refers to the indoor unit environment temperature at the fitting time point, T n-1 refers to the indoor unit environment temperature at the first fitting time point before the fitting time point, T n-2 refers to the indoor unit environment temperature at the second fitting time point before the fitting time point, T set refers to the user set temperature, and Kt, Lp, and Lv are predetermined calculation coefficients.

[0070] The calculation is performed according to the formula ΔPEXV= Kt(T n-T n-1 )+ Lp(T n -T set )+Lv(T n -2T n-1 +T n-2 The applicant calculated the target superheat ΔPEXV of the indoor unit and found that the target superheat ΔPEXV of the indoor unit calculated according to the formula can be used to calculate the opening change, which can further effectively adjust the opening of the electronic expansion valve of the indoor unit.

[0071] It is understood that in other embodiments, other optional formulas can be used to calculate the target superheat of the indoor unit based on the indoor unit ambient temperature corresponding to the fitting time point and the previous multiple fitting time points.

[0072] Furthermore, this application also provides an air conditioning control device, which can be applied to control equipment. For example... Figure 4 As shown, Figure 4 An air conditioning control device according to an embodiment of the present application is shown. Specifically, the air conditioning control device 400 may include a processor 401 with one or more processing cores and a memory 402 with one or more computer-readable storage media.

[0073] The processor 401 can load the executable files corresponding to the processes of one or more computer programs into the memory 402 according to instructions, and the processor 401 can run the computer programs stored in the memory 402 to realize the various functions in the aforementioned air conditioning control method embodiments of this application.

[0074] For example, processor 401 can perform the following steps: when a predetermined fitting period reaches the fitting time point, it fits the historical temperature control data of the indoor unit to obtain a temperature difference time relationship curve between different time points and corresponding temperature differences, wherein the temperature difference corresponding to each time point refers to the difference between the indoor unit ambient temperature and the user-set temperature at each time point; based on the temperature difference difference between the temperature difference corresponding to the fitting time point and the temperature difference corresponding to the previous fitting time point, it determines whether the capacity adjustment condition is met; if so, it determines the temperature difference corresponding to multiple future fitting time points after the fitting time point based on the temperature difference time relationship curve, and obtains the predicted temperature difference of the multiple future fitting time points; it calculates the indoor unit capacity adjustment value of the indoor unit based on the temperature difference of the fitting time point and the predicted temperature difference, and corrects the outdoor unit capacity based on the indoor unit capacity adjustment value.

[0075] Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by a computer program, or by a computer program controlling related hardware, which can be stored in a computer readable storage medium and loaded and executed by a processor.

[0076] To this end, the embodiments of the present application further provide a storage medium having a computer program stored therein, which can be loaded by a processor to execute the steps in any of the methods provided by the embodiments of the present application.

[0077] The storage medium can be a computer readable storage medium, which can include a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, etc.

[0078] Since the computer program stored in the storage medium can execute the steps in any of the methods provided by the embodiments of the present application, the beneficial effects of the methods provided by the embodiments of the present application can be achieved, which are described in detail in the foregoing embodiments and will not be described here.

[0079] In addition, referring to Figure 5 the embodiments of the present application further provide an air conditioner, which can include an air conditioner regulating device 400 and other air conditioner modules 600 (such as an indoor unit and an outdoor unit, etc.) as shown in Figure 4 .

[0080] According to another embodiment of the present application, a computer program product or computer program includes computer instructions stored in a computer readable storage medium. The processor of the air conditioner regulating device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to make the air conditioner regulating device execute the methods provided in various optional implementation manners described in the embodiments of the present application.

[0081] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. The present application is intended to cover any variations, uses or adaptive changes of the present application following the general principles of the present application and including those expressly suggested or inherently related to the field of the present application.

[0082] It should be understood that the present application is not limited to the embodiments described above and shown in the drawings, but various modifications and changes can be made without departing from the scope of the present application.

Claims

1. An air conditioning regulation method characterized by, The method comprises: fitting a temperature difference-time relationship curve of different time points and corresponding temperature differences according to historical temperature control data of the indoor unit when reaching a fitting time point every predetermined fitting period, wherein the temperature difference of each time point refers to the difference between the indoor unit environment temperature and the user set temperature at the time point; determining whether an ability adjustment condition is met according to a temperature difference difference between the temperature difference corresponding to the fitting time point and the temperature difference corresponding to a previous fitting time point; if yes, determining the temperature differences corresponding to a plurality of future fitting time points after the fitting time point according to the temperature difference-time relationship curve to obtain predicted temperature differences of the plurality of future fitting time points; calculating an indoor unit ability adjustment value of the indoor unit according to the temperature difference of the fitting time point and the predicted temperature differences, and correcting an outdoor unit ability of an outdoor unit according to the indoor unit ability adjustment value; the calculating an indoor unit ability adjustment value of the indoor unit according to the temperature difference of the fitting time point and the predicted temperature differences comprises: calculating a predicted indoor unit temperature change speed according to the temperature difference of the fitting time point and the predicted temperature differences; calculating an ability demand coefficient according to the temperature difference difference and the predicted indoor unit temperature change speed, and calculating according to a formula Lq = Lk * (ΔT2-ΔT1) + Ld * (VT), wherein Lq refers to the ability demand coefficient, ΔT2-ΔT1 refers to the temperature difference difference between the temperature difference ΔT2 corresponding to the fitting time point and the temperature difference ΔT1 corresponding to the previous fitting time point, VT refers to the predicted indoor unit temperature change speed, Lk and Ld are respectively predetermined calculation coefficients, Lk is a positive value, and Ld is a negative value; multiplying the indoor unit rated ability of the indoor unit by the ability demand coefficient to obtain the indoor unit ability adjustment value.

2. The method of claim 1, wherein, after the correcting an outdoor unit ability of an outdoor unit according to the indoor unit ability adjustment value, the method further comprises: determining indoor unit environment temperatures corresponding to the fitting time point and a plurality of previous fitting time points before the fitting time point according to the temperature difference-time relationship curve; calculating an indoor unit target superheat degree according to the indoor unit environment temperatures corresponding to the fitting time point and the plurality of previous fitting time points; calculating an opening degree change amount according to the indoor unit target superheat degree and an actual opening degree of an indoor unit electronic expansion valve; obtaining a target opening degree according to a sum of the opening degree change amount and the actual opening degree, and adjusting the indoor unit electronic expansion valve to the target opening degree.

3. The method of claim 1, wherein, the calculating a predicted indoor unit temperature change speed according to the temperature difference of the fitting time point and the predicted temperature differences comprises: summing the temperature difference of the fitting time point and the predicted temperature differences of the plurality of future fitting time points with the user set temperature respectively to obtain an indoor unit environment temperature of the fitting time point and predicted indoor unit environment temperatures of the future fitting time points; According to the formula VT=2T n+1 -T n+2 -T n is calculated, wherein VT refers to the predicted indoor unit temperature change speed, T n refers to the indoor unit environment temperature at the fitting time point, T n+1 refers to the predicted indoor unit environment temperature at the first future fitting time point after the fitting time point, T n+2 refers to the predicted indoor unit environment temperature at the second future fitting time point after the fitting time point.

4. The method of claim 2, wherein, the calculating an indoor unit target superheat degree according to the indoor unit environment temperatures corresponding to the fitting time point and the plurality of previous fitting time points comprises: According to the formula ΔPEXV= Kt(T n -T n-1 )+ Lp(T n -T set )+ Lv(T n -2T n-1 +T n-2 ), wherein ΔPEXV refers to the target overheat degree of the indoor unit, T n refers to the indoor unit environment temperature at the fitting time point, T n-1 refers to the indoor unit environment temperature at the first fitting time point before the fitting time point, T n-2 refers to the indoor unit environment temperature at the second fitting time point before the fitting time point, T set refers to the user set temperature, and Kt, Lp, and Lv are predetermined calculation coefficients.

5. The method according to any one of claims 1 to 4, characterized in that, the determining whether an ability adjustment condition is met according to a temperature difference difference between the temperature difference corresponding to the fitting time point and the temperature difference corresponding to a previous fitting time point comprises: If the temperature difference difference value is less than a first threshold value, the outdoor unit runs for more than a predetermined length of time, and the temperature difference corresponding to the fitting time point is less than a second threshold value, it is determined that the adjustment condition for reducing the capacity of the outdoor unit is met; If the temperature difference difference value in a continuous predetermined number of fitting periods is greater than zero, it is determined that the adjustment condition for increasing the capacity of the outdoor unit is met.

6. An air conditioning regulating device, characterized by comprising: Comprising: A memory storing a computer program; A processor reading the computer program stored in the memory to execute the method of any one of claims 1 to 5.

7. A storage medium, characterized by A computer program stored thereon, when executed by the processor of the air conditioner control device, causes the air conditioner control device to execute the method of any one of claims 1 to 5.

8. An air conditioner characterized by comprising: Comprising the air conditioner control device of claim 6 and other air conditioner modules.

Images