CN113091231A - Control method and device for air conditioner and air conditioner - Google Patents

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a control method for an air conditioner, which comprises the following steps: acquiring a first coefficient of performance corresponding to a first target exhaust temperature; obtaining a plurality of correction values of the first target exhaust temperature, and obtaining correction performance coefficients corresponding to the plurality of correction values; determining a correction value corresponding to a maximum value of the plurality of correction performance coefficients as a second target exhaust temperature; and controlling the operation parameters of the air conditioner according to the second target exhaust temperature. The second target exhaust temperature is obtained through correction, and the running state of the air conditioner is adjusted according to the second target exhaust temperature, so that the capacity and the power of the air conditioner can be well balanced, and the performance state of the air conditioning system is better. The application also discloses a controlling means and air conditioner for the air conditioner.

Description

Control method and device for air conditioner and air conditioner

Technical Field

The application relates to the technical field of intelligent household appliances, in particular to a control method and device for an air conditioner and the air conditioner.

Background

With the enhancement of energy conservation and environmental awareness, people have higher requirements on the energy efficiency of the air conditioner. The throttling element can adjust the heating or cooling efficiency of the air conditioner by controlling the flow of the refrigerant, the prior industry generally adjusts the throttling element according to the target exhaust temperature so as to enable the flow of the refrigerant to be in the optimal state, but because the target exhaust temperature is preset according to experimental data and a common environment temperature range, adaptive change cannot be made according to the actual environment condition, the target exhaust temperature is not the optimal target exhaust temperature at the current moment, and the air conditioner cannot keep the optimal state to operate.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

in the related art, the target exhaust temperature of the compressor is determined by detecting the operating frequency of the compressor, the coil temperature of the indoor heat exchanger, the coil temperature of the outdoor heat exchanger and the outdoor environment temperature, multiple calculations are required, and the problem that the air conditioner cannot be operated in the optimal state due to the fact that the difference between the obtained target exhaust temperature and the actual required value is large is solved.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a control method and device for an air conditioner and the air conditioner, so as to solve the problems that a related target exhaust temperature is not an optimal target exhaust temperature, and the air conditioner cannot keep an optimal state to operate.

In some embodiments, there is provided a control method for an air conditioner, including:

acquiring a first coefficient of performance corresponding to a first target exhaust temperature;

acquiring a plurality of correction values of the first target exhaust temperature, and acquiring correction performance coefficients corresponding to the correction values;

determining a correction value corresponding to a maximum value of the plurality of correction performance coefficients as a second target exhaust temperature;

and controlling the operation parameters of the air conditioner according to the second target exhaust temperature.

Optionally, the obtaining a first coefficient of performance corresponding to a first target exhaust temperature comprises:

acquiring capacity specific power of the air conditioner at the moment of the first exhaust temperature;

and determining the first performance coefficient according to the capacity ratio power.

Optionally, the obtaining a plurality of correction values of the first target exhaust temperature and obtaining a correction coefficient of performance corresponding to the correction values includes:

negatively correcting the first target exhaust temperature to obtain a first negative correction value, and controlling the air conditioner to operate according to the first negative correction value to obtain a first negative correction performance coefficient;

and forward correcting the first target exhaust temperature to obtain a first forward correction value, and controlling the air conditioner to operate according to the first forward correction value to obtain a first forward correction performance coefficient.

Optionally, the negative correction to the first target exhaust temperature further comprises:

and under the condition that the first negative correction performance coefficient is larger than the first performance coefficient, negatively correcting the first negative correction value to obtain a second negative correction value, and controlling the air conditioner to operate according to the second negative correction value to obtain a second negative correction performance coefficient.

Optionally, the forward correction of the first target exhaust temperature further comprises:

and under the condition that the first forward correction performance coefficient is larger than the first performance coefficient, forward correcting the first forward correction value, acquiring a second forward correction value, and controlling the air conditioner to operate according to the second forward correction value to acquire a second forward correction performance coefficient.

Optionally, the determining of the first target exhaust temperature comprises:

acquiring the running frequency of a compressor of the air conditioner at the moment of the first exhaust temperature;

acquiring an outdoor environment temperature compensation value at a first exhaust temperature moment;

and determining the first target exhaust temperature according to the compressor operating frequency of the air conditioner and the outdoor environment temperature compensation value.

Optionally, the determining of the first exhaust temperature comprises:

in the case that the exhaust temperature of the air conditioner compressor reaches or exceeds the target exhaust temperature for the first time, acquiring an actual exhaust temperature within a set time period as the first exhaust temperature.

In some embodiments, there is provided a control apparatus for an air conditioner, including:

an acquisition unit configured to acquire a first coefficient of performance corresponding to the first target exhaust temperature;

a correction unit configured to acquire a plurality of correction values of the first target exhaust temperature and acquire correction performance coefficients corresponding to the plurality of correction values;

a calculation unit configured to determine a correction value corresponding to a maximum value among the plurality of correction performance coefficients as a second target exhaust temperature;

and the adjusting unit is used for controlling the operating parameters of the air conditioner according to the second target exhaust temperature.

In some embodiments, there is provided a control apparatus for an air conditioner, comprising a processor and a memory storing program instructions, the processor being configured to perform the control method for an air conditioner as described above when executing the program instructions.

In some embodiments, an air conditioner is provided, including the control device described above.

The control method and device for the air conditioner and the air conditioner provided by the embodiment of the disclosure can achieve the following technical effects:

determining a second target exhaust temperature as a correction value corresponding to a maximum value of the plurality of correction performance coefficients by obtaining a first performance coefficient corresponding to the first target exhaust temperature, a plurality of correction values for the first target exhaust temperature, and correction performance coefficients corresponding to the plurality of correction values; and controlling the operation parameters of the air conditioner according to the second target exhaust temperature. The second target exhaust temperature is obtained through correction, and the running state of the air conditioner is adjusted according to the second target exhaust temperature, so that the capacity and the power of the air conditioner can be well balanced, and the performance state of the air conditioning system is better.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic diagram of a control method for an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a control device for an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of another control device for an air conditioner according to an embodiment of the present disclosure.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

The target discharge temperature is one of the parameters for determining the opening degree of the throttling element, and the opening degree of the throttling element is adjusted according to the target discharge temperature, so that the refrigerant flow rate can be in a better state.

In the field of air conditioning, the general target exhaust temperature is set in advance according to experimental data and a common environment temperature range, so that adaptability change cannot be made according to actual environment conditions, deviation exists between the general target exhaust temperature and an actual target exhaust temperature value, and the operation effect of an air conditioner is weakened. In order to further improve the performance of the air conditioner, the target exhaust temperature needs to be adaptively adjusted, so that the target exhaust temperature is closer to the actual optimal target exhaust temperature, and the air conditioner operates in a better state.

Based on this, as shown in fig. 1, an embodiment of the present disclosure provides a control method for an air conditioner to implement control of the air conditioner, where the method includes:

in step S01, a first coefficient of performance corresponding to a first target exhaust temperature is obtained.

Here, the first target discharge air temperature may be determined by an air conditioner operation parameter and an outdoor environment parameter, and the first coefficient of performance may be determined by an air conditioner performance parameter.

Optionally, the determining of the first target exhaust temperature comprises: acquiring the running frequency of a compressor of the air conditioner at the moment of the first exhaust temperature; acquiring an outdoor environment temperature compensation value at a first exhaust temperature moment; and determining a first target exhaust temperature according to the compressor operation frequency of the air conditioner and the outdoor environment temperature compensation value. In this way, the first target exhaust temperature is determined as a correction target, so as to obtain a better target exhaust temperature.

Here, the compressor operation frequency refers to an actual operation frequency of the compressor at the first exhaust gas temperature time. For how to obtain the actual operating frequency of the compressor, reference may be made to related technologies, which are not described herein.

The outdoor environment temperature compensation value refers to a compensation value corresponding to a temperature interval where the outdoor environment temperature is located. In the embodiment of the disclosure, the outdoor environment temperature compensation value is a preset value, and the preset value is adjustable.

It should be noted that, in different operation modes of the air conditioner, different outdoor ambient temperatures correspond to different compensation values. For example, when the air-conditioning operation mode is the cooling mode, the outdoor ambient temperature compensation value may be-5 in a case where the outdoor ambient temperature is greater than or equal to 20 degrees celsius and less than 30 degrees celsius.

Specifically, the first target discharge temperature is determined according to the compressor operating frequency of the air conditioner and the outdoor environment temperature compensation value, and the target discharge temperature of the compressor is calculated according to a fitting formula. The fitting formula is determined according to the corresponding relation between the target exhaust temperature obtained by testing under the set working condition, the outdoor environment temperature compensation value and the actual operation frequency of the compressor.

In some alternative embodiments, the fitting formula is DisT ═ a × f + b + c; where DisT is the target discharge temperature, f is the compressor operating frequency, c is the outdoor ambient temperature compensation value, a is a decimal number ranging from 0.01 to 2, b is an integer ranging from-50 to 200.

In a specific embodiment, the air conditioning operation mode is a cooling mode, when the actual operating frequency of the compressor is 60Hz, the outdoor ambient temperature is 35 ℃, the target discharge temperature of the compressor is 80 ℃ through a test, when the actual operating frequency of the compressor is 70Hz, the target discharge temperature DisT under the operating condition is a 70+ b + c, the outdoor ambient temperature compensation value c corresponding to the outdoor ambient temperature of 35 ℃ is 0, and if a is 1.5 and b is 10, the target discharge temperature under the operating condition is 115 ℃.

The first exhaust temperature time is a time corresponding to when the exhaust temperature is the first exhaust temperature; the first discharge temperature is used to represent an actual discharge temperature of the compressor.

Optionally, the determining of the first exhaust temperature comprises: in the case where the discharge temperature of the air conditioner compressor reaches or exceeds the target discharge temperature for the first time, an actual discharge temperature within a set period of time is acquired as a first discharge temperature.

Here, the set time period is used to express a predetermined period of time.

Therefore, after the exhaust temperature is stable, one actual exhaust temperature is selected as the first exhaust temperature, and the first exhaust temperature is used as a basic value for adjustment, so that the target exhaust temperature is adjusted more accurately, and the obtained adjusted target exhaust temperature has more practical significance.

Optionally, obtaining a first coefficient of performance corresponding to a first target exhaust temperature comprises: acquiring capacity specific power of the air conditioner at the moment of the first exhaust temperature; a first coefficient of performance is determined based on the capacity-to-power ratio.

Thus, the ratio of the capacity to the power is used as a performance coefficient, the performance coefficient reflects the energy efficiency, and the larger the performance coefficient is, the higher the energy efficiency of the air conditioner is.

Here, the coefficient of performance is used to express energy efficiency of the air conditioner; the first coefficient of performance is the ratio of the capacity of the air conditioner to the power. For how to obtain the capacity and power of the second air conditioner, reference may be made to related technologies, which are not described herein in detail.

In step S02, a plurality of correction values of the first target exhaust temperature are acquired, and correction coefficients corresponding to the plurality of correction values are acquired.

Here, the correction value is used to express a target exhaust temperature obtained by adding or subtracting at least one correction amount to or from the first target exhaust temperature. Here, the correction amount may be a fixed correction amount or a variable correction amount. As an example, the correction amount is a fixed correction amount, for example, the correction amount may be 0.5 ℃.

Optionally, obtaining a plurality of correction values of the first target exhaust temperature and obtaining a correction coefficient of performance corresponding to the correction values comprises:

and negatively correcting the first target exhaust temperature to obtain a first negative correction value, and controlling the air conditioner to operate according to the first negative correction value to obtain a first negative correction performance coefficient. In this way, the coefficient of performance corresponding to the target exhaust temperature which is smaller than the first target exhaust temperature and is close to the first target exhaust temperature value is obtained.

And forward correcting the first target exhaust temperature to obtain a first forward correction value, and controlling the air conditioner to operate according to the first forward correction value to obtain a first forward correction performance coefficient. In this way, the performance coefficient corresponding to the target exhaust temperature which is greater than the first target exhaust temperature and is close to the first target exhaust temperature value is obtained.

Here, the negative correction means subtracting a correction amount from the first target exhaust temperature; the forward correction is to add a correction amount to the first target exhaust temperature.

Optionally, the negative correction to the first target exhaust temperature further comprises: and under the condition that the first negative correction performance coefficient is larger than the first performance coefficient, negatively correcting the first negative correction value to obtain a second negative correction value, and controlling the air conditioner to operate according to the second negative correction value to obtain a second negative correction performance coefficient.

In this way, in the case where the first negative-going correction coefficient of performance is greater than the first coefficient of performance, the first target exhaust temperature is decremented by two corrections to obtain more coefficients of performance that are greater than the first coefficient of performance.

Optionally, the forward correction of the first target exhaust temperature further comprises: and under the condition that the first forward correction coefficient of performance is larger than the first coefficient of performance, forward correcting the first forward correction value, acquiring a second forward correction value, and controlling the air conditioner to operate according to the second forward correction value to acquire the second forward correction coefficient of performance.

In this way, in the case where the first forward correction coefficient of performance is greater than the first coefficient of performance, two correction amounts are added to the first target exhaust temperature to obtain more coefficients of performance than the first coefficient of performance.

It should be noted that the description only lists two times of condition judgment and corresponding execution actions of the correction process, so as to clarify the correction process. The correction process can continue as long as the determination condition is satisfied. For example, in the case where the second forward correction coefficient of performance is greater than the second coefficient of performance, the second forward correction value is forward corrected, a third forward correction value is obtained, and the air conditioner is controlled to operate according to the third forward correction value to obtain the third forward correction coefficient of performance. Or, the execution times of the correction process can be set according to the actual use requirement, and the correction process is stopped when the execution times are reached.

In step S03, the correction value corresponding to the maximum value among the plurality of correction performance coefficients is determined as the second target exhaust temperature.

Specifically, the maximum value of the plurality of correction performance coefficients is determined first, and then the correction value corresponding to the maximum value is determined as the second target exhaust temperature.

And step S04, controlling the operation parameters of the air conditioner according to the second target exhaust temperature.

Here, the operating parameter includes an opening degree of the throttling element. For how to control the operation parameters of the air conditioner, reference may be made to related technologies, which are not described herein.

With the control method for the air conditioner provided by the embodiment of the disclosure, the second target exhaust temperature is determined by acquiring the first performance coefficient corresponding to the first target exhaust temperature, the plurality of correction values of the first target exhaust temperature, and the correction performance coefficients corresponding to the plurality of correction values, and is the correction value corresponding to the maximum value of the plurality of correction performance coefficients; and controlling the operation parameters of the air conditioner according to the second target exhaust temperature. The second target exhaust temperature is obtained through correction, and the running state of the air conditioner is adjusted according to the second target exhaust temperature, so that the capacity and the power of the air conditioner can be well balanced, and the performance state of the air conditioning system is better. Through this scheme, the user has better use when using the air conditioner and experiences, and air conditioner working effect is better.

With reference to fig. 2, an embodiment of the present disclosure provides a control device for an air conditioner, where the control device controls the air conditioner by using the control method disclosed in the foregoing embodiment, and the control device specifically includes: anacquisition unit 11, acorrection unit 12, acalculation unit 13 and anadjustment unit 14. Anacquisition unit 11 for acquiring a first coefficient of performance corresponding to a first target exhaust temperature; acorrection unit 12 for acquiring a plurality of correction values of the first target exhaust temperature and acquiring correction performance coefficients corresponding to the plurality of correction values; acalculation unit 13 for determining a correction value corresponding to a maximum value among the plurality of correction performance coefficients as a second target exhaust temperature; and an adjustingunit 14 for controlling the operation parameter of the air conditioner according to the second target exhaust temperature.

With the control device for an air conditioner provided by the embodiment of the present disclosure, the obtainingunit 11 obtains the first performance coefficient corresponding to the first target exhaust temperature, and uses the obtained first performance coefficient as a threshold value for determining whether to continue the correction in the correction process determination logic; thecorrection unit 12 acquires a correction value and a correction performance coefficient; thecalculation unit 13 determines a second target exhaust gas temperature by calculation; the adjustingunit 14 controls the operation parameters of the air conditioner according to the working results of the acquiringunit 11, the correctingunit 12 and the calculatingunit 13. Through the matching work of theacquisition unit 11, thecorrection unit 12, thecalculation unit 13 and theadjustment unit 14 in the control device, the second target exhaust temperature of the air conditioner in a better capacity-specific power state is obtained, and the running state of the air conditioner is adjusted according to the second target exhaust temperature, so that the capacity and the power of the air conditioner can be better balanced, and the performance state of an air conditioning system is better.

The disclosed embodiment provides a control device for an air conditioner, including: a processor and a memory storing program instructions, the processor being configured to, upon execution of the program instructions, perform the control method for an air conditioner as described above.

As shown in fig. 3, an embodiment of the present disclosure provides a control apparatus for an air conditioner, including a processor (processor)200 and a memory (memory) 201. Optionally, the apparatus may also include a Communication Interface (Communication Interface)202 and abus 203. Theprocessor 200, thecommunication interface 202 and thememory 201 can communicate with each other through thebus 203. Thecommunication interface 202 may be used for information transfer. Theprocessor 200 may call logic instructions in thememory 201 to perform the control method for the air conditioner of the above-described embodiment.

In addition, the logic instructions in thememory 201 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.

Thememory 201 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. Theprocessor 200 executes functional applications and data processing by executing program instructions/modules stored in thememory 201, that is, implements the control method for the air conditioner in the above-described embodiments.

Thememory 201 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, thememory 201 may include a high-speed random access memory, and may also include a nonvolatile memory.

The embodiment of the disclosure provides an air conditioner, which comprises the control device for the air conditioner.

Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described control method for an air conditioner.

The disclosed embodiments provide a computer program product including a computer program stored on a computer-readable storage medium, the computer program including program instructions that, when executed by a computer, cause the computer to perform the above-described control method for an air conditioner.

The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.

The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method or device comprising the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.

Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit may be merely a division of a logical function, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims (10)

1. A control method for an air conditioner, characterized by comprising:

acquiring a first coefficient of performance corresponding to a first target exhaust temperature;

acquiring a plurality of correction values of the first target exhaust temperature, and acquiring correction performance coefficients corresponding to the correction values;

determining a correction value corresponding to a maximum value of the plurality of correction performance coefficients as a second target exhaust temperature;

and controlling the operation parameters of the air conditioner according to the second target exhaust temperature.

2. The method of claim 1, wherein said obtaining a first coefficient of performance corresponding to a first target exhaust temperature comprises:

acquiring capacity specific power of the air conditioner at the moment of the first exhaust temperature;

and determining the first performance coefficient according to the capacity ratio power.

3. The control method according to claim 1, wherein the obtaining a plurality of correction values of the first target exhaust temperature and obtaining a correction coefficient of performance corresponding to the correction values includes:

negatively correcting the first target exhaust temperature to obtain a first negative correction value, and controlling the air conditioner to operate according to the first negative correction value to obtain a first negative correction performance coefficient;

and forward correcting the first target exhaust temperature to obtain a first forward correction value, and controlling the air conditioner to operate according to the first forward correction value to obtain a first forward correction performance coefficient.

4. The control method according to claim 3, wherein the negative correction of the first target exhaust gas temperature further includes:

and under the condition that the first negative correction performance coefficient is larger than the first performance coefficient, negatively correcting the first negative correction value to obtain a second negative correction value, and controlling the air conditioner to operate according to the second negative correction value to obtain a second negative correction performance coefficient.

5. The method of claim 3, wherein the forward correction of the first target exhaust temperature further comprises:

and under the condition that the first forward correction performance coefficient is larger than the first performance coefficient, forward correcting the first forward correction value, acquiring a second forward correction value, and controlling the air conditioner to operate according to the second forward correction value to acquire a second forward correction performance coefficient.

6. The control method according to claim 1, characterized in that the determination of the first target exhaust gas temperature includes:

acquiring the running frequency of a compressor of the air conditioner at the moment of the first exhaust temperature;

acquiring an outdoor environment temperature compensation value at a first exhaust temperature moment;

and determining the first target exhaust temperature according to the compressor operating frequency of the air conditioner and the outdoor environment temperature compensation value.

7. The control method according to claim 6, characterized in that the determination of the first exhaust temperature includes:

in the case that the exhaust temperature of the air conditioner compressor reaches or exceeds the target exhaust temperature for the first time, acquiring an actual exhaust temperature within a set time period as the first exhaust temperature.

8. A control device for an air conditioner, characterized by comprising:

an acquisition unit configured to acquire a first coefficient of performance corresponding to the first target exhaust temperature;

a correction unit configured to acquire a plurality of correction values of the first target exhaust temperature and acquire correction performance coefficients corresponding to the plurality of correction values;

a calculation unit configured to determine a correction value corresponding to a maximum value among the plurality of correction performance coefficients as a second target exhaust temperature;

and the adjusting unit is used for controlling the operating parameters of the air conditioner according to the second target exhaust temperature.

9. A control device for an air conditioner comprising a processor and a memory storing program instructions, characterized in that the processor is configured to execute the control method for an air conditioner according to any one of claims 1 to 7 when executing the program instructions.

10. An air conditioner characterized by comprising the control device for an air conditioner according to claim 8 or 9.

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