Lg Electronics Inc.

Changmin Choi

Soonyong Choi

Hyuntak Lee

Daewoo Kim

Sunghwan Kim

Seungjun Lee

Juntae Kim

Baikyoung Chung

Changhwan Cho

Jinsik Kim

Taekyu Ha

Disclosed is an air conditioner. The air conditioner includes: an outdoor unit having therein a compressor for compressing refrigerant; at least one indoor unit; a storage configured to store a database on a power quantity used by the air conditioner; and a controller. The controller is configured to: based on the database, calculate an estimated power quantity expected to be used by the air conditioner for at least a part of an entire period, based on a preset maximum power quantity for the entire period and the calculated estimated power quantity, determine a target power quantity for a specific unit time, which is expected to be used by the air conditioner for the specific unit time of the entire period; control the compressor for the specific unit time based on the target power quantity; and in response to arrival of a point in time to update the target power quantity, add, to the database, the power quantity used by the air conditioner for the specific unit time.

Air conditioner and operation method thereof

A method of controlling an air conditioner including collecting indoor unit data of each of a plurality of indoor units connected to an outdoor unit; controlling a total flow rate of refrigerant supplied to the plurality of indoor units based on a total load of the indoor units, which is determined based on the indoor unit data of the respective indoor units; and controlling an individual flow rate of refrigerant flowing to the respective indoor units based on clusters of the respective indoor units which are matched based on the indoor unit data of the respective indoor units.

Method of controlling total and individual refrigerant flow rates in an air conditioner

A method of controlling an air conditioner including collecting indoor unit data during a time period from when an indoor unit is ON to when the indoor unit is OFF, and correcting clusters based on changes in the clusters which are matched based on the collected data, thereby accurately determining a state of an indoor space by changing the plurality of clusters according to an environment on site.

Method of controlling air conditioner through processing of clusters of indoor unit data

An air conditioner and a method of controlling an air conditioner are provided. The air conditioner includes at least one outdoor unit and a plurality of indoor units, each having at least one vane for adjusting wind direction. The method includes classifying the plurality of indoor units by indoor space using air temperature distributions over time detected by first temperature sensors. Relative positions between indoor units in a same space are determined based on floor temperature distributions detected by second temperature sensors. A reference indoor unit is selected, and each individual vane of indoor units adjacent to the reference indoor unit is adjusted. Changes in the air temperature of the reference indoor unit are detected in response to an operation of each individual vane of the adjacent indoor units. A direction of each individual vane of the adjacent indoor units is then determined based on the resulting change in the air temperature of the reference indoor unit.

Air conditioner and method of controlling air conditioner

A method of controlling an air conditioner is disclosed. The air conditioner includes an outdoor unit, and a plurality of indoor units respectively connected to the outdoor unit and including at least one vane that adjusts a wind direction, and a fan that forms an air flow. The method includes detecting an indoor temperature of each of the plurality of indoor units through a temperature sensor disposed in each of the plurality of indoor units; specifying an indoor unit having a temperature imbalance as a target indoor unit based on the indoor temperature of each of the plurality of indoor units detected through the temperature sensor; specifying indoor units adjacent to the target indoor unit as support indoor units; and performing a support operation for resolving the temperature imbalance of the target indoor unit by adjusting the at least one vane and the fan of the support indoor unit.

Air conditioner

An air conditioner and a method of controlling an air conditioner are provided. The air conditioner may include a compressor, an accumulator that recovers a liquid refrigerant contained in a refrigerant flowing into the compressor, an outdoor heat exchanger that performs heat exchange of air using the refrigerant, an outdoor unit fan that supplies outside air to the outdoor heat exchanger and discharges heat-exchanged air, a refrigerant charging pipe connected to a refrigerant pipe and allowing the refrigerant to the additionally introduced from the outside, a refrigerant charging valve installed in the refrigerant charging pipe to open and close the refrigerant charging pipe, and a controller that sets an operation mode so as to operate in a cooling operation or a heating operation upon setting of a refrigerant charging mode, sets an operation frequency of the compressor in accordance with a load of an indoor unit upon the setting of the refrigerant charging mode to allow the compressor to operate at the set operation frequency during the refrigerant charging, and calculates an amount of refrigerant in order to stop the refrigerant charging when a predetermined reference value is reached.

Air conditoner and method for controlling an air conditioner

Air conditioner and a method for controlling the air conditioner based on a calculated value of a malfunctioning sensor are provided. The method for controlling the air conditioner having a plurality of indoor devices includes detecting a malfunctioning sensor of any one of the plurality of indoor devices, calculating a value of the malfunctioning sensor based on a value of a normal functioning sensor of another indoor device of the plurality of indoor devices, and controlling the indoor device based on the calculated value of the non-functioning sensor.

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Seoul, South Korea

Changmin Choi