EP1703235B1 - Méthode de régulation d'un conditionneur d'air avec plusieurs compresseurs - Google Patents

Méthode de régulation d'un conditionneur d'air avec plusieurs compresseurs Download PDF

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Publication number
EP1703235B1
EP1703235B1 EP05004500A EP05004500A EP1703235B1 EP 1703235 B1 EP1703235 B1 EP 1703235B1 EP 05004500 A EP05004500 A EP 05004500A EP 05004500 A EP05004500 A EP 05004500A EP 1703235 B1 EP1703235 B1 EP 1703235B1
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EP
European Patent Office
Prior art keywords
compressing capacity
changed
compressors
temperature
operated
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Expired - Fee Related
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EP05004500A
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German (de)
English (en)
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EP1703235A1 (fr
Inventor
Won-Hee Lee
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LG Electronics Inc
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LG Electronics Inc
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • F25B2400/0751—Details of compressors or related parts with parallel compressors the compressors having different capacities

Definitions

  • the present invention relates to an air conditioner, and particularly, to a method for controlling an air conditioner having a multi-compressor.
  • an air conditioner cools warm air or heats cool air in a room.
  • a construction of an air conditioner having two compressors in accordance with a conventional art will now be described with reference to Figure 1 .
  • the two compressors are selectively operated according to a cooling load of a room.
  • Figure 1 a schematic view showing a construction of an air conditioner having two compressors in accordance with the conventional art.
  • the air conditioner having two compressors includes a first compressor 18A and a second compressor 18B selectively operated according to a cooling load of a room to vary a compressing capacity; a condenser 1 for radiating heat of a refrigerant compressed by the first and second compressors 18A, 18B; an expansion valve 2 for expanding the refrigerant discharged from the condenser 1; and an evaporator 3 receiving the refrigerant expanded by the expansion valve 2 and generating cool air.
  • the first compressor 18A is a compressor of a small compressing capacity
  • the second compressor 18B is a compressor of a high compressing capacity
  • suction pipes 9, 13 respectively connected to the first compressor 18A and the second compressor 18B are connected by hoses 5, 7 diverged from a suction hose 4 connected to the evaporator 3.
  • discharge pipes 11, 14 respectively connected to the first compressor 18A and the second compressor 18B are connected by hoses 10, 16 diverged from a discharge hose 17 connected to the condenser 1.
  • suction valves 6, 8 and discharge valves 12, 15 which are selectively opened/closed by hand or a control means such as a microcomputer or the like.
  • the air conditioner having two compressors controls a cooling cycle by operating the first compressor 18A or/and the second compressor 18B according to a cooling load. That is, compressing capacity of the compressors are changed in such a manner that the air conditioner operates only the first compressor 18A when a cooling load of a room is small, operates only the second compressor 18B when the cooling load of a room is large, and operates both first and second compressors 18A, 18B when the cooling load of the room is maximum.
  • an air conditioner having four compressors has been used.
  • General operations of the air conditioner having four compressors are the same as those of the air conditioner of Figure 1 .
  • the four compressors may be designed to have the same compressing capacity or may be designed to have different compressing capacities.
  • an internal temperature is controlled by increasing or decreasing a compressing capacity of the compressors level (10%) by level depending on the cooling load. For example, in case the air conditioner is in a cooling mode, if an internal temperature reaches a temperature lower than a desired temperature preset by a user by 0.5 degree, the compressors are operated for the certain time with a compressing capacity lower than a previous compressing capacity by one level. After the certain time elapses, the desired temperature and an internal temperature are compared again. If the internal temperature is not the same as the desired temperature (lower or higher than the desired temperature), the compressors are operated with a compressing capacity higher or lower than a previous compressing capacity by one level.
  • a compressing capacity of the compressor is increased or decreased level by level depending on an internal cooling load or a heating load. Accordingly, the air conditioner slowly copes with the cooling load or the heating load, and energy loss of the air conditioner is increased. For example, on the assumption that total compressing capacity is 100%, when the air conditioner intends to lower the compressing capacity of the compressor from 70% to 50%, the compressing capacity of 70% is lowered to 60% and then the compressing capacity of 60% is lowered to 50%. For this reason, the air conditioner slowly copes with the cooling load or the heating load, and the energy loss of the air conditioner is increased.
  • an object of the present invention is to provide a method for controlling an air conditioner having a multi-compressors capable of improving capability of coping with a cooling load or a heating load and reducing energy loss by pre-storing a compressing capacity according to a temperature difference between a previous room temperature and a desired temperature set by a user; and changing the pre-stored compressing capacity based on a temperature difference between a current room temperature and the desired-temperature.
  • Another object of the present invention is to provide a method for controlling an air conditioner having a multi-compressors capable of improving pleasantness by pre-storing a compressing capacity according to a temperature difference between a previous room temperature and a previous desired temperature and body adaptation time, changing the desired temperature according to the body adaptation time and changing the pre-stored compressing capacity based on a temperature difference between a current room temperature and the changed desired-temperature.
  • a method for controlling an air conditioner having a multi-compressor including: a step in which compressing capacity of compressors according to a temperature difference between a previous room temperature and a desired temperature set by a user is pre-stored; and a step in which the pre-stored compressing capacity is changed based on a current room temperature and the desired temperature.
  • a method for controlling an air conditioner having a multi-compressor including: a step in which compressing capacity of compressors is pre-stored according to a temperature difference between a previous room temperature and a desired temperature preset by a user; a step in which when the air conditioner is in a cooling mode and a current room temperature reaches a lower limit temperature less than the desired temperature, the pre-stored compressing capacity is changed to compressing capacity for maintaining the lower limit temperature, and the compressors are operated with the changed compressing capacity; and a step in which after the compressors have been operated with the changed compressing capacity for the preset time, a temperature difference between a current room temperature and the desired temperature is detected, the changed compressing capacity is changed again to preset compressing capacity according to the detected temperature difference, and the compressors are operated with the re-changed compressing capacity.
  • a method for controlling an air conditioner having a multi-compressor including: a step in which compressing capacity of compressors according to a temperature difference between a previous room temperature and a desired temperature set by a user is pre-stored; a step in which when the air conditioner is in a cooling mode and the current room temperature reaches a lower limit temperature lower than the desired temperature, the pre-stored compressing capacity is changed to compressing capacity for maintaining the lower limit temperature, and the compressors are operated with the changed compressing capacity; a step in which after the compressors have been operated with the changed compressing capacity for the preset time, a temperature difference between the current room temperature and the desired temperature is detected, the changed compressing capacity is changed again to preset compressing capacity according to the detected temperature difference, and the compressors are operated with the re-changed compressing capacity; a step in which if compressing capacity corresponding to a current operation mode for operating the compressor
  • a method for controlling an air conditioner having a multi-compressor including: a step in which compressing capacity according to a previous room temperature and a desired temperature and body adaptation time are pre-stored; a step in which the pre-stored compressing capacity is changed based on a temperature difference between a current room temperature and the desired temperature, and when the body adaptation time elapses while compressors are operated with the changed compressing capacity, the desired temperature is changed; and a step in which the changed compressing capacity is changed again based on a temperature difference between a current room temperature and the changed desired temperature.
  • a preferred embodiment of a method for controlling an air conditioner having a multi-compressor capable of improving capability for coping with a cooling load or a heat load, reducing energy loss and improving pleasantness in a room by pre-storing a compressing capacity according to a temperature difference between a previous room temperature and a desired temperature and body adaptation time, changing the desired temperature when the body adaptation time elapses while compressors are operated after the pre-stored compressing capacity has been changed based on a current room temperature and the desired temperature, and changing the changed compressing capacity again based on a temperature difference between the current room temperature and the changed desired temperature.
  • Figure 3 is a flow chart of a method for controlling an air conditioner having a multi-compressor in accordance with an embodiment of the present invention.
  • a method for controlling an air conditioner having a multi-compressor in accordance with an embodiment of the present invention includes: a step in which when an internal temperature is controlled at a previous stage, compressing capacity of compressors according to a temperature difference between a previous room temperature and a desired temperature set by a user, and body adaptation time (time taken to adapt a human body to a temperature) are pre-stored; a step in which when a user selects a cooling mode and a current room temperature reaches a lower limit temperature less than a desired temperature set by a user, the pre-stored compressing capacity is changed to preset compressing capacity in order to maintain the lower limit temperature, and the compressors are operated with the changed compressing capacity; a step in which after the compressors has been operated for the preset time with the changed compressing capacity, a temperature difference between the current room temperature and the desired temperature is detected in order to operate the compressors with optical compressing capacity, the changed compressing capacity is changed again to preset compressing capacity according to the detected temperature difference
  • the multi-compressor consists of four compressors, and total compressing capacity of the four compressors is 100%, two compressors each having a compressing capacity of 20% and two compressors each having a compressing capacity of 30% are respectively installed in the air condition, a user selects a cooling mode, and two compressors having a compressing capacity of 20% and one compressor having a compressing capacity of 30% are operated (operating the compressors with the pre-stored compressing capacity).
  • the method for controlling the air conditioner having a multi-compressor may further include: a step in which the changed compressing capacity is changed again, and when the compressors are operated with the re-changed compressing capacity, if compressing capacity corresponding to a current operation mode for operating the compressors with the re-changed compressing capacity is the same as compressing capacity corresponding to a maximum operation mode, the compressors are operated in the maximum operation mode; a step in which if the compressing capacity corresponding to the current operation mode is smaller than that corresponding to the maximum operation mode, the compressing capacity corresponding to the current operation mode and that corresponding to a previous operation mode are compared, and if the compressing capacity corresponding to the current operation mode is smaller than that corresponding to the previous operation mode, the compressors are operated in the previous operation mode; and a step in which if the compressing capacity corresponding to the current operation mode is larger than that corresponding to the previous operation mode, the compressors are operated in the current operation mode.
  • the operation mode is for operating the compressors with the changed compressing capacity
  • the maximum operation mode is for operating the compressors with total compressing capacity (100%) of the multi-compressor
  • the previous operation mode is for operating the compressors with a pre-stored compressing capacity (e.g., 70%).
  • a method for controlling an air conditioner having a multi-compressor in accordance with an embodiment of the present invention may further include: a step in which the changed compressing capacity is changed again to preset compressing capacity according to the detected temperature difference, a new desired temperature is set by changing the desired temperature when the body adaptation time elapses while the compressors are operated with the re-changed compressing capacity, a temperature difference between the new desired temperature and a current room temperature is detected, the current compressing capacity is changed to preset compressing capacity according to the detected temperature difference and the compressors are operated with the changed compressing capacity.
  • the compressing capacity of the compressors are changed to preset compressing capacity according to a temperature difference between a room temperature and a desired temperature. But, in order to explain a preferred embodiment in accordance with the present invention, it is assumed that four compressors are applied to the air conditioner, total compressing capacity of the four compressors is 100%, and the preset compressing capacity is 70%.
  • the body adaptation time means time taken to adapt a human body to a specific temperature and is slightly different depending on a person. But in general, when exposed to a specific temperature (e.g., 20 degrees) for 20 ⁇ 40 minutes, a human body adapts to the specific temperature. Accordingly, in order to provide a user with pleasantness, preferably, the desired temperature is changed every thirty minutes.
  • the pre-stored compressing capacity is changed to preset compressing capacity (e.g., 50%) in order to maintain the lower limit temperature (S5).
  • the lower limit temperature is near the desired temperature set by a user and is lower than 1 degree (e.g., 0.5 degree). For example, on the assumption that a desired temperature is 20 degrees and the lower limit temperature is 0.5 degree, when the room temperature is 19.5 degrees, the compressors are operated with a preset compressing capacity (e.g. 50% of total compressing capacity) in order to maintain 19.5 degrees.
  • the temperature difference between the current room temperature and the desired temperature is compared with a reference value (S8), the changed compressing capacity (e.g., 50%) is changed to preset compressing capacity based on the comparison result, and the compressors are operated with the re-changed compressing capacity. That is, if the temperature difference between the current room temperature and the desired temperature is larger than a first reference value (e.g., 2 degrees), the changed compressing capacity (e.g., 50%) is increased by two level (e.g., 20%), and thus the compressors are operated with the increased compressing capacity.
  • a first reference value e.g. 2 degrees
  • the changed compressing capacity e.g. 50%
  • two level e.g. 20%
  • the changed compressing capacity e.g., 50%
  • one level e.g., 10%
  • the changed compressing capacity e.g. 50%
  • the compressors are operated therewith.
  • the changed compressing capacity e.g. 50%
  • the compressors are operated with the decreased compressing capacity (S9).
  • the compressing capacity of 70% is changed to compressing capacity of 50%, and the compressors are operated with the changed compressing capacity of 50% for the preset time (e.g., three minutes). Thereafter, when a temperature difference between the current room temperature and the desired temperature is larger than 2 degrees, the compressing capacity of 50% is increased by 20%, and the compressors are operated with the increased compressing capacity. When the temperature difference between the current room temperature and the desired temperature is 1 ⁇ 2 degrees, the compressing capacity of 50% is increased by 10%, and the compressors are operated with the increased compressing capacity.
  • the compressing capacity of 50% is maintained.
  • the compressors are stopped, or the compressing capacity of 50% is decreased and the compressors are operated with the decreased compressing capacity.
  • the compressing capacity changed according to the temperature difference between the room temperature and the desired temperature is preset according to the number of compressors mounted in an air conditioner and a compressing capacity ratio of the compressors.
  • a compressing capacity corresponding to a current operation mode for operating the compressors with the changed compressing capacity is the same as compressing capacity corresponding to a maximum operation mode (maximum compressing capacity (100%) of a multi-compressor)
  • the compressors are operated in the maximum operation mode.
  • the compressing capacity corresponding to the current operation mode is smaller than that corresponding to the maximum operation mode
  • the compressing capacity corresponding to the current operation mode and a compressing capacity corresponding to a previous operation mode are compared. If the compressing capacity corresponding to the current operation mode is smaller than that corresponding to the previous operation mode, the compressors are operated in the previous operation mode.
  • the compressing capacity corresponding to the current operation mode is larger than that corresponding to the previous operation mode, the compressors are operated in the current operation mode.
  • the compressing capacity of a multi-compressor is quickly changed and the compressors are operated with the changed compressing capacity, by pre-storing a compressing capacity according to a temperature difference between a previous room temperature and a previous desired temperature when a room temperature is controlled at a previous stage, and then changing the pre-stored compressing capacity based on a temperature difference between a current room temperature and a current desired temperature. For example, when compressing capacity is lowered from 70% to 50%, the compressing capacity of 70% is directly lowered to a compressing capacity of 50%. For this reason, an air conditioner in accordance with the present invention quickly copes with a cooling load and a heating load, and its energy loss can be reduced.
  • the changed compressing capacity is changed again to preset compressing capacity according to the detected temperature difference, and the compressors are operated with the re-changed compressing capacity (S9).
  • the desired temperature is changed by adding or subtracting a preset value (e.g., 1 degree) to/from the desired temperature (S11).
  • a preset value e.g. 1 degree
  • the current compressing capacity is changed to preset compressing capacity according to the detected temperature difference, and the compressors are operated with the changed compressing capacity.
  • the changed compressing capacity is re-changed to preset compressing capacity according to the detected temperature difference, and the compressors are operated with the re-changed compressing capacity (S9). Thereafter, when body adaptation time, thirty-minute, is elapses, a new desired temperature is set by adding 1 degree to a desired temperature set by a user. A temperature different between the new desired temperature and a current room temperature is detected, the current compressing capacity is changed to preset compressing capacity according to the detected temperature difference, and the compressors are operated with the changed compressing capacity.
  • a compressing capacity of compressors according to a temperature difference between a room temperature and a desired temperature is pre-stored when a room temperature is controlled at a previous stage (S1). Thereafter, when a user selects a heating mode, and a current room temperature reaches an upper limit temperature more than a desired temperature set by a user (S13) while the compressors are operated with the pre-stored compressing capacity (e.g., 70%) (S12), the pre-stored compressing capacity is changed to preset compressing capacity in order to maintain the upper limit temperature (S14), and the compressors are operated with the changed compressing capacity. That is, after the compressors are operated with the changed compressing capacity, the processes (S6 ⁇ S11) are performed (S15).
  • the pre-stored compressing capacity e.g. 70%
  • a method for controlling an air conditioner having a multi-compressor in accordance with the convention art can improve capability of coping with a cooling load and a heating load by pre-storing compressing capacity according to a temperature difference between a previous room temperature and a previous desired temperature and then changing the pre-stored compressing capacity based on a temperature difference between a current room temperature and a desired temperature.
  • a method for controlling an air conditioner having a multi-compressor in accordance with the present invention can reduce the energy loss of an air conditioner by pre-storing compressing capacity according to a temperature difference between a previous room temperature and a previous desired temperature and then changing the pre-stored compressing capacity based on a temperature difference between a current room temperature and a desired temperature.
  • a method for controlling an air conditioner having a multi-compressor in accordance with the present invention can improve pleasantness by pre-storing compressing capacity according to a temperature difference between a previous room temperature and a previous desired temperature and body adaptation time, then changing the desired temperature according to the body adaptation time, and changing the pre-stored compressing capacity based on a temperature difference between a current room temperature and the changed desired-temperature.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Thermal Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Claims (11)

  1. Procédé pour le contrôle d'un climatiseur ayant un compresseur multiple comprenant :
    une étape (S3, S12) dans laquelle des compresseurs fonctionnent à une certaine capacité pré-mémorisée selon une différence de température entre une température ambiante initiale et une température souhaitée réglée par l'utilisateur ; et
    une étape (S5, S14) dans laquelle la capacité de compression pré-mémorisée est modifiée sur la base d'une température ambiante actuelle et la température souhaitée,
    caractérisé en ce que le procédé comprend en outre une étape (S7-S11, S15) dans laquelle la capacité pré-mémorisée est modifiée sur la base d'une différence de température entre la température ambiante actuelle et la température souhaitée, une nouvelle température souhaitée est réglée en modifiant la température désirée quand un temps d'adaptation corporel s'est écoulé tandis que les compresseurs fonctionnent à la capacité de compression modifiée et la capacité de compression modifiée est à nouveau modifiée sur la base d'une différence de température entre la nouvelle température désirée et une température ambiante actuelle.
  2. Procédé selon la revendication 1, dans lequel la température désirée est augmentée ou diminuée à une valeur préréglée quand l'adaptation corporelle s'est écoulée.
  3. Procédé selon la revendication 2, dans lequel la valeur préréglée est 1 degré.
  4. Procédé selon la revendication 2, dans lequel le temps d'adaptation corporelle signifie le temps pris pour que le corps humain s'adapte à une température et est 20 - 40 minutes.
  5. Procédé selon la revendication 1, dans lequel la capacité de compression pré-mémorisée est modifiée par l'utilisation sélective de compresseurs ayant la même capacité de compression et de compresseurs ayant des capacités de compression différentes, sur la base d'une différence de température entre la température ambiante actuelle et la température souhaitée.
  6. Procédé selon la revendication 1, dans lequel l'étape (S5, S14), où la capacité de compression pré-mémorisée est modifiée, est une étape (S5, S14) dans laquelle la capacité de compression pré-mémorisée est modifiée sur la base d'une différence de température entre la température ambiante actuelle et la température souhaitée afin d'augmenter une vitesse correspondant à une charge de refroidissement et une charge de chauffage.
  7. Procédé selon la revendication 1, dans lequel l'étape (S5, S14) dans laquelle la capacité de compression pré-mémorisée est modifiée, comprend :
    une étape (S5) dans laquelle quand le climatiseur est dans un mode de refroidissement et la température ambiante actuelle atteint une température limite inférieure à la température souhaitée, la capacité de compression pré-mémorisée est modifiée à une capacité de compression pour maintenir la température limite inférieure et les compresseurs fonctionnent à la capacité de compression modifiée ; et
    une étape (S7-S9) dans laquelle après que les compresseurs ont fonctionné à la capacité de compression modifiée pendant un temps préréglé, une différence de température entre la température ambiante actuelle et la température souhaitée est détectée, la capacité de compression modifiée est modifiée à nouveau à la capacité de compression préréglée selon la différence de température détectée et les compresseurs fonctionnent à la capacité de compression modifiée à nouveau.
  8. Procédé selon la revendication 1, dans lequel l'étape (S5, S14) dans laquelle la capacité de compression pré-mémorisée est modifiée, comprend :
    une étape (S14) dans laquelle quand le climatiseur est dans un mode de chauffage et la température ambiante actuelle atteint une température limite supérieure à la température souhaitée, la capacité de compression pré-mémorisée est modifiée à une capacité de compression pour maintenir la température limite supérieure et les compresseurs fonctionnent à la capacité de compression modifiée ; et
    une étape (S15) dans laquelle après que les compresseurs ont fonctionné à la capacité de compression modifiée pendant un temps préréglé, une différence de température entre la température ambiante actuelle et la température souhaitée est détectée, la capacité de compression modifiée est modifiée à nouveau à la capacité de compression préréglée selon la différence de température détectée et les compresseurs fonctionnent à la capacité de compression modifiée à nouveau.
  9. Procédé selon la revendication 1, comprenant en outre :
    une étape dans laquelle si la capacité de compression correspondant à un mode de fonctionnement actuelle pour faire fonctionner les compresseurs à la capacité de compression modifiée est la même que celle correspondant à un mode de fonctionnement maximum, les compresseurs fonctionnent en mode de fonctionnement maximum ;
    une étape dans laquelle, si la capacité de compression correspondant au mode actuel de fonctionnement est inférieure à celle correspondant au mode de fonctionnement maximum, la capacité de compression correspondant au mode de fonctionnement actuel et la capacité de compression correspondant à un mode de fonctionnement précédent sont comparées et, si la capacité de compression correspondant au mode de fonctionnement actuel est inférieure à la capacité de compression correspondant à un mode de fonctionnement précédent, les compresseurs fonctionnent au mode de fonctionnement précédent ; et
    une étape dans laquelle, si la capacité de compression correspondant au mode de fonctionnement actuel est plus grande que celle correspondant au mode e fonctionnement précédent, les compresseurs fonctionnent dans le mode de fonctionnement actuel,
    dans lequel le mode de fonctionnement maximum est prévu pour faire fonctionner les compresseurs à la capacité totale de compression du compresseur multiple et le mode de fonctionnement précédent est prévu pour faire fonctionner les compresseurs à la capacité de compression pré-mémorisée.
  10. Procédé pour le contrôle d'un climatiseur ayant un compresseur multiple comprenant :
    une étape (S3, S12) dans laquelle des compresseurs fonctionnent à une certaine capacité pré-mémorisée selon une différence de température entre une température ambiante initiale et une température souhaitée réglée par un utilisateur ; et
    une étape (S5, S14) dans laquelle la capacité de compression pré-mémorisée est modifiée sur la base d'une température ambiante actuelle et la température souhaitée,
    caractérisé en ce que l'étape (S5, S14), dans laquelle la capacité de compression pré-mémorisée est modifiée, comprend :
    une étape (S5) dans laquelle quand le climatiseur est dans un mode de refroidissement et la température ambiante actuelle atteint une température limite inférieure à la température souhaitée, la capacité de compression pré-mémorisée est modifiée à une capacité de compression pour maintenir la température limite inférieure et les compresseurs fonctionnent à la capacité de compression modifiée ; et
    une étape (S7-S9) dans laquelle, après que les compresseurs ont fonctionné à la capacité de compression modifiée pendant un temps préréglé, une différence de température entre la température ambiante actuelle et la température souhaitée est détectée, la capacité de compression modifiée est modifiée à nouveau à la capacité de compression préréglée selon la différence de température détectée et les compresseurs fonctionnent à la capacité de compression modifiée à nouveau.
  11. Procédé pour le contrôle d'un climatiseur ayant un compresseur multiple comprenant :
    une étape (S3, S12) dans laquelle des compresseurs fonctionnent à une certaine capacité pré-mémorisée selon une différence de température entre une température ambiante initiale et une température souhaitée réglée par l'utilisateur ; et
    une étape (S5, S14) dans laquelle la capacité de compression pré-mémorisée est modifiée sur la base d'une température ambiante actuelle et la température souhaitée,
    caractérisé en ce que l'étape (S5, S14), dans laquelle la capacité de compression pré-mémorisée est modifiée, comprend :
    une étape (S14) dans laquelle quand le climatiseur est dans un mode de chauffage et la température ambiante actuelle atteint une température limite supérieure à la température souhaitée, la capacité de compression pré-mémorisée est modifiée à une capacité de compression pour maintenir la température limite supérieure et les compresseurs fonctionnent à la capacité de compression modifiée ; et
    une étape (S15) dans laquelle après que les compresseurs ont fonctionné à la capacité de compression modifiée pendant un temps préréglé, une différence de température entre la température ambiante actuelle et la température souhaitée est détectée, la capacité de compression modifiée est modifiée à nouveau à la capacité de compression préréglée selon la différence de température détectée et les compresseurs fonctionnent à la capacité de compression modifiée à nouveau.
EP05004500A 2005-03-02 2005-03-02 Méthode de régulation d'un conditionneur d'air avec plusieurs compresseurs Expired - Fee Related EP1703235B1 (fr)

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EP1813892A1 (fr) * 2005-03-16 2007-08-01 LG Electronics Inc. Procédé de commande d'un climatiseur doté d'un multi-compresseur
CN104110774B (zh) * 2013-08-27 2016-12-28 广东美的制冷设备有限公司 一种空调运行控制方法及装置

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KR100484800B1 (ko) * 2002-06-19 2005-04-22 엘지전자 주식회사 공기조화기의 압축기 동작방법
KR20040009076A (ko) * 2002-07-22 2004-01-31 엘지전자 주식회사 공기조화기의 부가 히터 동작방법.
KR100471453B1 (ko) * 2002-11-22 2005-03-08 엘지전자 주식회사 히트펌프 시스템 및 히트펌프 시스템의 전자 팽창밸브제어방법
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KR100517600B1 (ko) * 2002-12-05 2005-09-28 엘지전자 주식회사 공기조화기의 난방 운전 방법
KR100505231B1 (ko) * 2002-12-10 2005-08-03 엘지전자 주식회사 복수개의 압축기를 갖는 공기조화기의 압축기 운전 방법
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