# US 2019/0170386 A1 · Air conditioning system

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- Number: US 2019/0170386 A1
- Document ID: US20190170386A1
- Status: Published application
- Kind: A1
- Application number: 16/061,415
- Filed: 2016-06-17
- Published: 2019-06-06
- Earliest claimed: 2016-06-17
- Assignees: Mitsubishi Electric Corporation
- Applicants: Mitsubishi Electric Corporation
- Inventors: Teppei HIGUCHI
- Web page: https://patentgrep.com/patent/US20190170386A1

## CPC

- F24F 11/49: ensuring correct operation, e.g. by trial operation or configuration checks
- F24F 1/0003: characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
- F24F 11/30: for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F 11/56: Remote control
- F24F 11/61: using timers
- F24F 11/64: using pre-stored data
- F24F 11/65: for selecting an operating mode
- F24F 11/80: for controlling the temperature of the supplied air
- G05B 19/042: using digital processors (G05B19/05 takes precedence)
- F24F 2110/10: Temperature
- F24F 2110/12: of the outside air
- F24F 2130/00: Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F 2130/10: Weather information or forecasts
- G05B 2219/2614: HVAC, heating, ventillation, climate control
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)

## Abstract

An air conditioning system includes: an air conditioner that includes an outdoor unit including an outside air temperature sensor and an indoor unit including an indoor unit controller to control air conditioning operation and communicable with the outdoor unit; and a remote controller communicable with the indoor unit. The remote controller includes: a schedule storage to store information on an operation schedule of the air conditioner for each date and time, a reference temperature for determining an operation mode of the air conditioner, and an outside air temperature correction value; and an operation mode determiner to select the operation mode from among cooling, blowing, and heating using the information on the operation schedule, a corrected outside air temperature, and the reference temperature. The indoor unit controller controls the air conditioning operation using the reference temperature as a target temperature in the operation mode determined by the operation mode determiner.

## Claims

### Claim 1

An air conditioning system comprising:
an air conditioner that includes an outdoor unit including an outside air temperature sensor to detect an outside air temperature and an indoor unit including an indoor unit controller to control air conditioning operation, the indoor unit being communicable with the outdoor unit; and
a remote controller communicable with the indoor unit, wherein
the remote controller includes:
a schedule storage to store information on an operation schedule of the air conditioner for each date and time set in advance, a reference temperature for determining an operation mode of the air conditioner, and an outside air temperature correction value for correcting the outside air temperature; and
an operation mode determiner to select the operation mode from among cooling, blowing, and heating using the information on the operation schedule, a corrected outside air temperature obtained through correction of the outside air temperature with the outside air temperature correction value, and the reference temperature, and
the indoor unit controller controls the air conditioning operation using the reference temperature as a target temperature in the operation mode determined by the operation mode determiner.

### Claim 2 (depends on 1)

The air conditioning system according to claim 1, wherein
the operation mode determiner is configured to:
calculate a cooling selection temperature that is the corrected outside air temperature for selecting the cooling as the operation mode and a heating selection temperature that is the corrected outside air temperature for selecting the heating as the operation mode;
select the cooling as the operation mode when a first condition that the reference temperature is lower than the cooling selection temperature is satisfied;
select the heating as the operation mode when a second condition that the reference temperature is higher than the heating selection temperature is satisfied; and
select the blowing as the operation mode when the reference temperature satisfies the first condition and the second condition.

### Claim 3 (depends on 1)

The air conditioning system according to claim 1, wherein
the indoor unit includes an indoor temperature sensor to detect an indoor temperature, and
the operation mode determiner determines the operation mode using the information on the operation schedule, the corrected outside air temperature, a temperature difference between the outside air temperature and the indoor temperature, and the reference temperature.