CN111023511A - Air conditioner control method, air conditioner and storage medium - Google Patents
Air conditioner control method, air conditioner and storage medium Download PDFInfo
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- CN111023511A CN111023511A CN201911370793.5A CN201911370793A CN111023511A CN 111023511 A CN111023511 A CN 111023511A CN 201911370793 A CN201911370793 A CN 201911370793A CN 111023511 A CN111023511 A CN 111023511A
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 239000003507 refrigerant Substances 0.000 claims abstract description 139
- 230000001105 regulatory effect Effects 0.000 claims abstract description 92
- 230000001276 controlling effect Effects 0.000 claims description 46
- 238000004378 air conditioning Methods 0.000 claims description 27
- 238000004422 calculation algorithm Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The invention discloses an air conditioner control method, an air conditioner and a storage medium. The air conditioner control method includes: when the air conditioner is in a test mode, whether the number of times that the exhaust temperature of an air conditioner compressor meets a preset condition reaches a preset number of times or not within a first preset time is judged, the preset condition is that the exhaust temperature sequentially reaches a first preset temperature and a second preset temperature, and if the number of times that the exhaust temperature meets the preset condition reaches the preset number of times, the refrigerant regulating valve is controlled to operate at a preset opening degree within the preset time. According to the invention, when the exhaust temperature of the compressor fluctuates in the test mode, the refrigerant regulating valve is controlled to operate at the preset opening degree, so that the continuous fluctuation of the exhaust temperature is avoided, and the APF test efficiency is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner control method, an air conditioner and a storage medium.
Background
In an APF (Annual Performance Factor) test of an air conditioner, a target exhaust temperature of a compressor is set, test data needs to be acquired when the exhaust temperature is stabilized at the target exhaust temperature, and the opening of an existing refrigerant regulating valve is automatically regulated through a PID algorithm (a control algorithm combining three links of proportion, integral and differentiation into a whole).
Thus, the prior art has yet to be improved and enhanced.
Disclosure of Invention
The invention provides an air conditioner control method, an air conditioner and a storage medium, aiming at solving the technical problem that the control method of a refrigerant regulating valve in the prior art is easy to cause frequent fluctuation of exhaust temperature and influence the test efficiency.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an air conditioning control method, comprising:
when the air conditioner is in a test mode, judging whether the times that the exhaust temperature of an air conditioner compressor meets a preset condition within a first preset time period reach preset times or not, wherein the preset condition is that the exhaust temperature sequentially reaches a first preset temperature and a second preset temperature;
and if the times that the exhaust temperature meets the preset conditions reach the preset times, controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time.
The air conditioner control method comprises the following steps of controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time period:
acquiring a difference value between the real-time exhaust temperature and a target exhaust temperature of the air-conditioning compressor;
and controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time according to the difference value.
The air conditioner control method, wherein the controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time period according to the difference value comprises:
and if the difference value is greater than a first preset value or less than a second preset value, adjusting the opening degree of the refrigerant adjusting valve, and controlling the refrigerant adjusting valve to maintain the adjusted opening degree to operate within a preset time period.
The air conditioner control method includes the steps of adjusting the opening degree of the refrigerant adjusting valve and controlling the refrigerant adjusting valve to maintain the adjusted opening degree for a preset time period, wherein the step of adjusting the opening degree of the refrigerant adjusting valve comprises the following steps:
if the difference value is larger than the first preset value, the opening degree of the refrigerant regulating valve is regulated to a first opening degree according to a preset first stepping value, and the refrigerant regulating valve is controlled to maintain the first opening degree to operate within a second preset time period;
the first opening degree is the sum of the current opening degree of the refrigerant regulating valve and the first step value.
The air conditioner control method includes the steps of adjusting the opening degree of the refrigerant adjusting valve and controlling the refrigerant adjusting valve to maintain the adjusted opening degree for a preset time period, wherein the step of adjusting the opening degree of the refrigerant adjusting valve comprises the following steps:
if the difference value is smaller than the second preset value, the opening degree of the refrigerant regulating valve is regulated to a second opening degree according to a preset second stepping value, and the refrigerant regulating valve is controlled to maintain the second opening degree to operate within a third preset time period;
and the second opening degree is obtained by subtracting the second step value from the current opening degree of the refrigerant regulating valve.
The air conditioner control method includes the steps of adjusting the opening degree of the refrigerant adjusting valve, and controlling the refrigerant adjusting valve to maintain the adjusted opening degree for a preset time period to operate:
and continuing to execute the step of obtaining the difference value between the real-time exhaust temperature and the target exhaust temperature of the air-conditioning compressor, and if the difference value is greater than a first preset value or less than a second preset value, adjusting the opening of the refrigerant adjusting valve, and controlling the refrigerant adjusting valve to maintain the adjusted opening to operate within a preset time period until the difference value is less than or equal to the first preset value and greater than or equal to the second preset value.
The air conditioner control method comprises the following steps of controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time according to the difference value:
and if the difference value is less than or equal to the first preset value and greater than or equal to the second preset value, controlling the refrigerant regulating valve to maintain the current opening operation within a fourth preset time period later.
The air conditioner control method is characterized in that the average value of the first preset temperature and the second preset temperature is the target exhaust temperature.
An air conditioner includes an indoor unit and an outdoor unit, wherein the indoor unit includes: a processor, a memory; the memory has stored thereon a computer readable program executable by the processor; the processor implements the steps in the air conditioning control method as described above when executing the computer readable program.
A computer readable storage medium, wherein the computer readable storage medium stores one or more programs, which are executable by one or more processors to implement the steps in the air conditioning control method as described above.
Has the advantages that: compared with the prior art, the air conditioner control method provided by the invention has the advantages that when the exhaust temperature of the compressor fluctuates in the test mode, the opening degree of the refrigerant regulating valve is not controlled according to the PID algorithm any more, but the refrigerant regulating valve is controlled to operate at the preset opening degree, the continuous fluctuation of the exhaust temperature is avoided, and the APF test efficiency is improved.
Drawings
Fig. 1 is a flowchart of a first embodiment of a refrigeration control method for an air conditioner according to the present invention;
fig. 2 is a schematic structural diagram of an air conditioning indoor unit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
In an embodiment, an air conditioner control method is provided, where the air conditioner control method may be applied to an air conditioner, and a processor in the air conditioner may execute the air conditioner control method to control the air conditioner, please refer to fig. 1, where fig. 1 is a flowchart of a first embodiment of the air conditioner control method provided in the present invention. The method comprises the following steps:
s100, when the air conditioner is in a test mode, judging whether the number of times that the exhaust temperature of the air conditioner compressor meets a preset condition reaches a preset number of times within a first preset time, wherein the preset condition is that the exhaust temperature sequentially reaches a first preset temperature and a second preset temperature.
Specifically, the operation mode of the air conditioner comprises a test mode and a user mode, in the field, an APF test of the air conditioner is carried out in the test mode, after the air conditioner is started, whether the air conditioner is in the test mode or not is detected, if not, the air conditioner is operated according to the user mode, if the air conditioner is in the test mode, the change condition of the exhaust temperature of an air conditioner compressor is detected, and the opening degree of a refrigerant regulating valve is controlled according to the change condition of the exhaust temperature. As described in the background section above, in the prior art, the refrigerant regulating valve of the air conditioner is automatically controlled according to a preset PID algorithm. Specifically, the refrigerant regulating valve is a device for regulating the refrigerant circulation amount in the air conditioner, the larger the opening of the refrigerant regulating valve is, the larger the refrigerant circulation amount in the air conditioning system is, and the refrigerant regulating valve may be a thermal expansion valve, an electronic expansion valve, or other refrigerant regulating valves. In the prior art, in order to keep the refrigerant circulation volume in the air conditioning system at a good level, a PID algorithm is preset to control the opening of the refrigerant regulating valve in real time, however, the existing PID algorithm is set according to a preset working condition and is not perfect, when the actual working condition is different from the preset working condition, frequent up-and-down adjustment occurs when the opening of the refrigerant regulating valve is controlled according to the preset PID algorithm, which causes the frequent fluctuation of the exhaust temperature of the air conditioning compressor, and test data are obtained when the exhaust temperature is required to be stabilized at a target exhaust temperature (the stabilized target exhaust temperature means that the difference from the target exhaust temperature is kept within a preset range) during an APF test, so that the frequent fluctuation of the exhaust temperature affects the efficiency of the APF test and the accuracy of the test data.
The exhaust temperature may be obtained by a temperature sensor disposed in the compressor, in this embodiment, the fluctuation of the exhaust temperature refers to a process that the exhaust temperature rises first and then falls or falls first and then rises for a plurality of times within a first preset time period, specifically, whether the exhaust temperature fluctuates is reflected by detecting whether the number of times that the exhaust temperature meets a preset condition reaches a preset number within the first preset time period, where the preset condition is that the exhaust temperature reaches a first preset temperature and a second preset temperature in sequence. The preset number is a natural number greater than or equal to 2, and the first preset time length (represented by t 1) satisfies: 0min < t1 < 30min, for example, the first preset time period may be 15min, 20min, etc. When the exhaust temperature meets the requirements of sequentially reaching a first preset temperature and a second preset temperature at least twice in the first preset time, the exhaust temperature is shown to be at least in the first preset time, the first preset temperature is changed to the second preset temperature, then the second preset temperature is changed to the first preset temperature, and the first preset temperature is changed to the second preset temperature again, so that the exhaust temperature is shown to fluctuate.
The first preset temperature and the second preset temperature are set according to a target exhaust temperature of an APF test, one of the first preset temperature and the second preset temperature is greater than the target exhaust temperature, and the other is less than the target exhaust temperature. In one possible implementation manner, an average value of the first preset temperature and the second preset temperature is the target exhaust gas temperature, that is, the first preset temperature and the second preset temperature are T1+ a and T1-a, respectively, where T1 is the target exhaust gas temperature, and 0 ℃ < a < 10 ℃. It should be noted that the first preset temperature may be greater than the second preset temperature, or may be less than the second preset temperature, that is, the first preset temperature may be T1+ a, the second preset temperature may be T1-a, or the first preset temperature may be T1-a, and the second preset temperature may be T1+ a, that is, when determining whether the exhaust temperature fluctuates, it is not limited that the exhaust temperature needs to undergo at least two processes of first rising and then falling to determine that the exhaust temperature fluctuates, and the exhaust temperature undergoes at least two processes of first falling and then rising to determine that the exhaust temperature fluctuates. If the number of times that the exhaust temperature meets the preset condition does not reach the preset number within the first preset time, namely no fluctuation occurs, the step of judging whether the number of times that the exhaust temperature of the air conditioner compressor meets the preset condition within the first preset time reaches the preset number is executed in a circulating manner until the number of times that the exhaust temperature meets the preset condition reaches the preset number or the air conditioner exits the test mode.
The air conditioner control method further includes:
s200, if the times that the exhaust temperature meets the preset conditions reach the preset times, controlling a refrigerant regulating valve to operate at a preset opening degree within a preset time.
According to the above description, when the exhaust temperature fluctuates, it is described that the existing refrigerant regulating valve control method (PID control method) is not suitable for the current working condition, and if the existing PID control method is continuously used to control the refrigerant regulating valve, the exhaust temperature may further fluctuate, which is not favorable for stabilizing the exhaust temperature to the target exhaust temperature, and thus the test efficiency is affected.
Specifically, the controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time period comprises:
s210, acquiring a difference value between the real-time exhaust temperature and the target exhaust temperature of the air conditioner compressor.
The real-time exhaust temperature is the current exhaust temperature of the air conditioner compressor, and when the exhaust temperature is determined to meet the preset conditions within the first preset time period and reaches the preset number, the real-time exhaust temperature is the exhaust temperature at the end of the first preset time period.
And acquiring a difference T-T1 between the real-time exhaust temperature and a target exhaust temperature, wherein T is the real-time exhaust temperature, and T1 is the target exhaust temperature.
And S220, controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time according to the difference value.
Specifically, the discharge temperature of the air conditioner compressor can reflect whether the refrigerant circulation volume of the air conditioner is good, and in this embodiment, the refrigerant regulating valve is controlled to operate at a preset opening degree within a preset time period according to the difference.
Specifically, the controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time period according to the difference value comprises:
and S221, if the difference value is larger than a first preset value or smaller than a second preset value, adjusting the opening degree of the refrigerant adjusting valve, and controlling the refrigerant adjusting valve to maintain the adjusted opening degree to operate within a preset time period.
Specifically, when the difference between the difference and the target exhaust temperature exceeds a preset value, it is described that the refrigerant circulation amount in the air conditioning system is not a good level at this time, and the opening of the refrigerant regulating valve needs to be adjusted, but because frequent adjustment of the opening of the refrigerant regulating valve may cause the exhaust temperature to fluctuate continuously, in this embodiment, after the opening of the refrigerant regulating valve is adjusted, the refrigerant regulating valve is controlled to maintain the adjusted opening for a preset time period thereafter, that is, to operate at a fixed opening, and is not adjusted again for the preset time period.
Specifically, the adjusting the opening degree of the refrigerant adjusting valve and controlling the refrigerant adjusting valve to maintain the adjusted opening degree operation within a preset time period includes:
and S221a, if the difference is greater than the first preset value, adjusting the opening degree of the refrigerant regulating valve to a first opening degree according to a preset first stepping value, and controlling the refrigerant regulating valve to maintain the first opening degree to operate within a second preset time period later.
The first opening degree is the sum of the current opening degree of the refrigerant regulating valve and the first step value. Specifically, the first preset value (represented by a) satisfies 0 ℃ < a < 5 ℃, for example, the first preset value may be 4 ℃, 3 ℃, or the like. If the difference is larger than a first preset value, namely T-T1 is larger than A, the real-time exhaust temperature is higher, the exhaust temperature can reflect the superheat degree of the compressor, when the exhaust temperature is high, the superheat degree is high, and when the exhaust temperature is low, the superheat degree is low.
When the difference is larger than the first preset value, the fact that the degree of superheat is high is reflected, the fact that the degree of superheat is high not only enables an APF test value to be inaccurate, but also can possibly reduce the service life of the compressor, and the degree of superheat of the compressor can be reduced by increasing the circulation quantity of the refrigerant in the air conditioning system, so that the opening of the refrigerant adjusting valve is increased at the moment to enable more refrigerants to participate in the refrigeration/heating circulation in the air conditioning system. In this embodiment, the first step value is increased to the current opening degree of the refrigerant adjusting valve. The first step value (expressed by m) satisfies 0P < m < 20P, and for example, the first step value may be 10P, 12P, or the like.
In order to prevent the exhaust temperature fluctuation caused by frequent adjustment of the refrigerant adjusting valve, in this embodiment, after the opening degree of the refrigerant adjusting valve is adjusted to the first opening degree, the refrigerant adjusting valve is controlled to maintain the first opening degree for a second preset time period thereafter.
The second preset time period (represented by t 2) satisfies: 0min < t2 < 60min, for example, the second preset time period may be 30min, 40min, etc.
The adjusting the opening degree of the refrigerant adjusting valve and controlling the refrigerant adjusting valve to maintain the adjusted opening degree to operate within a preset time period may further include:
and S221b, if the difference value is smaller than a second preset value, adjusting the opening degree of the refrigerant adjusting valve to a second opening degree according to a preset second stepping value, and controlling the refrigerant adjusting valve to maintain the second opening degree to operate within a third preset time period later.
And the second opening degree is obtained by subtracting the second step value from the current opening degree of the refrigerant regulating valve. In particular, said second preset value (denoted by B) satisfies-5 ℃ < B < 0 ℃, for example, said second preset value may be-4 ℃, -2 ℃, etc. It has been explained previously that the discharge temperature may reflect the degree of superheat of the compressor, which is high when the discharge temperature is high and low when the discharge temperature is low. If the difference value is smaller than the second preset value, namely T-T1 is smaller than B, it is indicated that the real-time exhaust temperature is lower, the superheat degree of the compressor is low, which also causes inaccuracy of the APF test value, the service life of the compressor is also affected when the superheat degree is too low to generate a liquid return phenomenon, and reducing the refrigerant circulation amount in the air conditioning system can improve the superheat degree of the compressor, so that the opening degree of the refrigerant regulating valve is reduced at this time to reduce the refrigerant amount participating in the refrigeration/heating cycle in the air conditioning system. In this embodiment, the second step value is subtracted from the current opening degree of the refrigerant regulating valve. The second step value (denoted by n) satisfies 0P < n < 20P, and for example, the second step value may be 10P, 15P, or the like.
Similarly, in order to avoid frequent fluctuation of the exhaust temperature, after the opening degree of the refrigerant regulating valve is regulated to the second opening degree, the refrigerant regulating valve is controlled to maintain the second opening degree for a third preset time period later.
The third preset time period (denoted by t 3) satisfies: 0min < t2 < 60min, for example, the third preset time period may be 30min, 50min, etc.
Specifically, it has been explained above that in the APF test, it is necessary that the difference between the discharge temperature and the target discharge temperature be maintained within a preset range, and therefore, in the present embodiment, the adjustment of the refrigerant regulating valve is performed so that when the difference is equal to or less than the first preset value and equal to or greater than the second preset value, i.e., B ≦ T-T1 ≦ a.
After the adjusting the opening degree of the refrigerant and controlling the refrigerant adjusting valve to maintain the adjusted opening degree to operate within a preset time period, the method comprises the following steps:
and continuing to execute the step of obtaining the difference value between the real-time exhaust temperature and the target exhaust temperature of the air-conditioning compressor, and if the difference value is greater than the first preset value or less than the second preset value, adjusting the opening degree of the refrigerant adjusting valve and controlling the refrigerant adjusting valve to maintain the adjusted opening degree to operate within a preset time period until the difference value is less than or equal to the first preset value and greater than or equal to the second preset value.
That is, after the opening degree of the refrigerant regulating valve is regulated and the regulated opening degree is maintained for a preset time period, the real-time exhaust temperature of the compressor is continuously obtained (when the refrigerant regulating valve maintains the first opening degree for the second preset time period, the real-time exhaust temperature is the exhaust temperature at the end of the second preset time period, and when the refrigerant regulating valve maintains the second opening degree for the third preset time period, the real-time exhaust temperature is the exhaust temperature at the end of the third preset time period), and when the difference value between the real-time exhaust temperature and the target exhaust temperature is greater than a first preset value or less than a second preset value, regulating the opening of the refrigerant regulating valve again and maintaining the regulated opening for a preset time period until the difference value between the real-time exhaust temperature and the target exhaust temperature is less than or equal to the first preset value and greater than or equal to the second preset value.
The step of controlling the refrigerant regulating valve to operate within a preset time period according to the difference value by a preset opening degree comprises the following steps:
and S222, if the difference value is less than or equal to the first preset value and greater than or equal to the second preset value, controlling the refrigerant regulating valve to maintain the current opening operation within a fourth preset time period.
When the difference value is less than or equal to the first preset value and greater than or equal to the second preset value, that is, when B is greater than or equal to T-T1 and is less than or equal to a, the real-time exhaust temperature approaches the target exhaust temperature, which reflects that the superheat degree of the compressor is maintained at a better level, at this time, the refrigerant circulation amount in the air conditioning system should be kept unchanged, at this time, the refrigerant regulating valve is controlled to maintain the current opening degree for operation within a fourth preset time period thereafter, specifically, the fourth preset time period (represented by T4) satisfies: 0min < t1 < 120min, for example, the fourth preset time period may be 60min, 100min, etc.
And after controlling the refrigerant regulating valve to maintain the current opening degree to operate within the fourth preset time period, continuously executing the step of judging whether the times that the exhaust temperature of the air conditioner compressor meets the preset conditions within the first preset time period reaches the preset times or not until the air conditioner exits the test mode.
In summary, according to the air conditioner control method provided in this embodiment, when the discharge temperature of the compressor fluctuates in the test mode, the opening degree of the refrigerant regulating valve is not controlled according to the PID algorithm, but the refrigerant regulating valve is controlled to operate at the preset opening degree, so that the discharge temperature is prevented from continuously fluctuating, and the efficiency and accuracy of the APF test are improved.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
Example two
Based on the air conditioner control method, the invention also provides an air conditioner, which comprises an indoor unit and an outdoor unit, wherein a schematic block diagram of the indoor unit can be shown in fig. 2. The indoor unit comprises a processor, a memory, a network interface, a display screen and a temperature sensor which are connected through a system bus. Wherein, the processor of this indoor set is used for providing calculation and control ability. The memory of the indoor unit comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the indoor unit is used for connecting and communicating with an external terminal through a network. The computer program is executed by a processor to implement an air conditioning control method. The display screen of the indoor unit can be a liquid crystal display screen or an electronic ink display screen, and the temperature sensor of the indoor unit is arranged in the air-conditioning indoor unit in advance and used for detecting the current operating temperature of internal equipment.
Those skilled in the art will understand that the schematic block diagram shown in fig. 2 is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation to the air conditioner to which the solution of the present invention is applied, and a specific air conditioner indoor unit may include more or less components than those shown in the figure, or combine some components, or have different component arrangements.
In one embodiment, the processor of the air conditioner indoor unit can at least realize the following steps when executing the computer program:
when the air conditioner is in a test mode, judging whether the times that the exhaust temperature of an air conditioner compressor meets a preset condition within a first preset time period reach preset times or not, wherein the preset condition is that the exhaust temperature sequentially reaches a first preset temperature and a second preset temperature;
and if the times that the exhaust temperature meets the preset conditions reach the preset times, controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time.
Wherein, control refrigerant governing valve includes with the operation of preset aperture within the time length of predetermineeing:
acquiring a difference value between the real-time exhaust temperature and a target exhaust temperature of the air-conditioning compressor;
and controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time according to the difference value.
Wherein, the controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time period according to the difference value comprises:
and if the difference value is greater than a first preset value or less than a second preset value, adjusting the opening degree of the refrigerant adjusting valve, and controlling the refrigerant adjusting valve to maintain the adjusted opening degree to operate within a preset time period.
The adjusting the opening degree of the refrigerant adjusting valve and controlling the refrigerant adjusting valve to maintain the adjusted opening degree operation within a preset time period comprises the following steps:
if the difference value is larger than a first preset value, the opening degree of the refrigerant regulating valve is regulated to a first opening degree according to a preset first stepping value, and the refrigerant regulating valve is controlled to maintain the first opening degree to operate within a second preset time period;
the first opening degree is the sum of the current opening degree of the refrigerant regulating valve and the first step value.
The adjusting the opening degree of the refrigerant adjusting valve and controlling the refrigerant adjusting valve to maintain the adjusted opening degree operation within a preset time period comprises the following steps:
if the difference value is smaller than a second preset value, the opening degree of the refrigerant regulating valve is regulated to a second opening degree according to a preset second stepping value, and the refrigerant regulating valve is controlled to maintain the second opening degree to operate within a third preset time period;
and the second opening degree is obtained by subtracting the second step value from the current opening degree of the refrigerant regulating valve.
The adjusting the opening degree of the refrigerant adjusting valve and controlling the refrigerant adjusting valve to maintain the adjusted opening degree to operate within a preset time period comprises the following steps:
and continuing to execute the step of obtaining the difference value between the real-time exhaust temperature and the target exhaust temperature of the air-conditioning compressor, and if the difference value is greater than the first preset value or less than the second preset value, adjusting the opening degree of the refrigerant adjusting valve, and controlling the refrigerant adjusting valve to maintain the adjusted opening degree to operate within a preset time period until the difference value is less than or equal to the first preset value and greater than or equal to the second preset value.
Wherein, the controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time period according to the difference value comprises:
and if the difference value is less than or equal to the first preset value and greater than or equal to the second preset value, controlling the refrigerant regulating valve to maintain the current opening operation within a fourth preset time period later.
Wherein an average value of the first preset temperature and the second preset temperature is the target exhaust temperature.
EXAMPLE III
Based on the air conditioner control method, the invention further provides a computer readable storage medium, which stores one or more programs, wherein the one or more programs can be executed by one or more processors to realize the steps of the air conditioner control method according to the embodiment.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An air conditioning control method, characterized by comprising:
when the air conditioner is in a test mode, judging whether the times that the exhaust temperature of an air conditioner compressor meets a preset condition within a first preset time period reach preset times or not, wherein the preset condition is that the exhaust temperature sequentially reaches a first preset temperature and a second preset temperature;
and if the times that the exhaust temperature meets the preset conditions reach the preset times, controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time.
2. The air conditioning control method according to claim 1, wherein the controlling the refrigerant regulating valve to operate at a preset opening degree for a preset time period comprises:
acquiring a difference value between the real-time exhaust temperature and a target exhaust temperature of the air-conditioning compressor;
and controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time according to the difference value.
3. The air conditioner control method according to claim 2, wherein the controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time period according to the difference comprises: and if the difference value is greater than a first preset value or less than a second preset value, adjusting the opening degree of the refrigerant adjusting valve, and controlling the refrigerant adjusting valve to maintain the adjusted opening degree to operate within a preset time period.
4. The air conditioner control method according to claim 3, wherein the adjusting the opening degree of the refrigerant adjusting valve and controlling the refrigerant adjusting valve to maintain the adjusted opening degree for a preset time period comprises:
if the difference value is larger than the first preset value, the opening degree of the refrigerant regulating valve is regulated to a first opening degree according to a preset first stepping value, and the refrigerant regulating valve is controlled to maintain the first opening degree to operate within a second preset time period;
the first opening degree is the sum of the current opening degree of the refrigerant regulating valve and the first step value.
5. The air conditioner control method according to claim 3, wherein the adjusting the opening degree of the refrigerant adjusting valve and controlling the refrigerant adjusting valve to maintain the adjusted opening degree for a preset time period comprises:
if the difference value is smaller than the second preset value, the opening degree of the refrigerant regulating valve is regulated to a second opening degree according to a preset second stepping value, and the refrigerant regulating valve is controlled to maintain the second opening degree to operate within a third preset time period;
and the second opening degree is obtained by subtracting the second step value from the current opening degree of the refrigerant regulating valve.
6. The air conditioner control method according to claim 3, wherein after adjusting the opening degree of the refrigerant adjusting valve and controlling the refrigerant adjusting valve to maintain the adjusted opening degree for a preset time period, the method comprises:
and continuing to execute the step of obtaining the difference value between the real-time exhaust temperature and the target exhaust temperature of the air-conditioning compressor, and if the difference value is greater than a first preset value or less than a second preset value, adjusting the opening of the refrigerant adjusting valve, and controlling the refrigerant adjusting valve to maintain the adjusted opening to operate within a preset time period until the difference value is less than or equal to the first preset value and greater than or equal to the second preset value.
7. The air conditioner control method according to claim 3, wherein the controlling the refrigerant regulating valve to operate at a preset opening degree within a preset time period according to the difference comprises:
and if the difference value is less than or equal to the first preset value and greater than or equal to the second preset value, controlling the refrigerant regulating valve to maintain the current opening operation within a fourth preset time period later.
8. The air conditioning control method according to claim 2, wherein an average value of the first preset temperature and the second preset temperature is the target exhaust gas temperature.
9. An air conditioner, its includes indoor set and off-premises station, its characterized in that, indoor set includes: a processor, a memory; the memory has stored thereon a computer readable program executable by the processor; the processor, when executing the computer readable program, implements the steps in the air conditioning control method of any of claims 1-8.
10. A computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the steps in the air conditioning control method according to any one of claims 1 to 8.
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