US5613369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioner and control method for an air conditioner
Assignee: Toshiba Corp
•
Filing: 1995-09-22
•
Granted: 1997-03-25
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Expires: 2015-09-22
Abstract
Abstract An air conditioner and a method for controlling an air conditioner which can operate in at least two operation modes, such as a cooling mode and heating mode. The capacity of the air conditioner is determined based on a difference between a set temperature and the temperature detected by a room temperature sensor every time a set time has elapsed, and the amount of variation of the detected temperature over the set time. The capacity can be controlled using PID control, fuzzy control, genetic algorithm control, or the like. The set time is varied based on the operating mode. Also, the set time can be varied in accordance with the volume of air blown into the room from the air conditioner, the direction of the blown air, the performance rating of the air conditioner and/or the size of the room to be conditioned.
Inventors
- 👤 Takashi Sato
- 👤 Yasuhiro Kageyama
- 👤 Masao Isshiki
- 👤 Harunobu Nukushina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:23
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/62; F24F11/30; F24F11/50; F24F11/61; F24F11/63; F24F11/65; F24F2110/00; F24F2110/10; F25; F25B; F25B2600/00; F25B2600/02; F25B2600/021; Y; Y02; Y02B; Y02B30/00; Y02B30/70
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
127 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can selectively operate in a cooling mode and a heating mode, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and employing a first value for said set time in said cooling mode which is different from a second value of said set time in said heating mode.
Claim 2
Independent Claim
127 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can selectively operate in a cooling mode and a heating mode, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and employing a first value for said set time in said cooling mode which is different from a second value of said set time in said heating mode.
Claim 3
Independent Claim
139 words
A method for varying a set time to calculate a room temperature variation for an air conditioner, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory based on said difference between said set temperature and said sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and varying said set time based on a data, which is pre-stored in said memory, relating to a performance rating of said air conditioner.
Claim 4
Independent Claim
139 words
A method for varying a set time to calculate a room temperature variation for an air conditioner, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory based on said difference between said set temperature and said sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and varying said set time based on a data, which is pre-stored in said memory, relating to a performance rating of said air conditioner.
Claim 5
Independent Claim
144 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can operate by varying a direction of air blown into a room, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory based on said difference between said set temperature and said sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and varying said set time depending on said direction of air blown by said air conditioner.
Claim 6
Independent Claim
144 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can operate by varying a direction of air blown into a room, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory based on said difference between said set temperature and said sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and varying said set time depending on said direction of air blown by said air conditioner.
Claim 7
Independent Claim
154 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can selectively operate in a cooling mode and a heating mode, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory device based on said difference between said set temperature and said sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and employing a value for said set time in said cooling mode which is different from said value for said set time in said heating mode.
Claim 8
Independent Claim
154 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can selectively operate in a cooling mode and a heating mode, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory device based on said difference between said set temperature and said sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and employing a value for said set time in said cooling mode which is different from said value for said set time in said heating mode.
Claim 9
Independent Claim
131 words
A method for varying a set time to calculate a room temperature variation for an air conditioner, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory based on said difference between said set temperature and said sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and varying said set time depending on a size of a room to be air conditioned.
Claim 10
Independent Claim
131 words
A method for varying a set time to calculate a room temperature variation for an air conditioner, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory based on said difference between said set temperature and said sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and varying said set time depending on a size of a room to be air conditioned.
Claim 11
Independent Claim
117 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can operate in at least two operating modes out of cooling, heating and dehumidifying, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and employing a value for said set time which is dependent on said operating mode.
Claim 12
Independent Claim
117 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can operate in at least two operating modes out of cooling, heating and dehumidifying, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and employing a value for said set time which is dependent on said operating mode.
Claim 13
Independent Claim
113 words
A method for varying a set time to calculate a room temperature for an air conditioner which can vary a volume of air blown into a room, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and varying said set time depending on said volume of air blown by said air conditioner.
Claim 14
Independent Claim
113 words
A method for varying a set time to calculate a room temperature for an air conditioner which can vary a volume of air blown into a room, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and varying said set time depending on said volume of air blown by said air conditioner.
Claim 15
Independent Claim
103 words
A method for varying a set time to calculate a room temperature variation for an air conditioner, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and varying said set time depending on a size of a room to be air conditioned.
Claim 16
Independent Claim
103 words
A method for varying a set time to calculate a room temperature variation for an air conditioner, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and varying said set time depending on a size of a room to be air conditioned.
Claim 17
Independent Claim
114 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can vary a direction of air blown into a room, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and varying said set time depending on said direction of air blown by said air conditioner.
Claim 18
Independent Claim
114 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can vary a direction of air blown into a room, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and varying said set time depending on said direction of air blown by said air conditioner.
Claim 19
Independent Claim
113 words
A method for varying a set time to calculate a room temperature variation for an air conditioner, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and storing data relating to a performance rating of said air conditioner in a memory device; and varying said set time based on said stored data.
Claim 20
Independent Claim
113 words
A method for varying a set time to calculate a room temperature variation for an air conditioner, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and storing data relating to a performance rating of said air conditioner in a memory device; and varying said set time based on said stored data.
Claim 21
Independent Claim
147 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can operate in at least two operating modes out of a cooling mode, a heating mode and a dehumidifying mode, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory device based on said difference between said set temperature and said sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and varying said set time depending on said operating mode.
Claim 22
Independent Claim
147 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can operate in at least two operating modes out of a cooling mode, a heating mode and a dehumidifying mode, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory device based on said difference between said set temperature and said sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and varying said set time depending on said operating mode.
Claim 23
Independent Claim
138 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can vary a volume of air blown into a room, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory device based on said difference between said set temperature and slid sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and varying said set time depending on said volume of air.
Claim 24
Independent Claim
138 words
A method for varying a set time to calculate a room temperature variation for an air conditioner which can vary a volume of air blown into a room, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of temperature variation of said sensed temperature over said set time; reading a capacity variation value from a preset table in a memory device based on said difference between said set temperature and slid sensed temperature and based on said amount of temperature variation; adding said capacity variation value to a previous first capacity value to determine a second capacity value to control said air conditioner; and varying said set time depending on said volume of air.
Claim 25
Independent Claim
36 words
A method for varying a set time to calculate a room temperature variation for an air conditioner according to one of claims 1 to 10 wherein said capacity value of said air conditioner is compressor speed.
Claim 26
Independent Claim
78 words
A method for varying a set time to calculate a room temperature variation for an air conditioner according to one of claims 1 to 2, further comprising the step of: when said set temperature is varied during operation, correcting said capacity value of said air conditioner based on a deviation of said sensed temperature from said set temperature and a difference between said sensed temperature detected when said set timer previously elapsed and said sensed temperature currently detected.
Claim 27
Independent Claim
49 words
A method for varying a set time to calculate a room temperature variation for an air conditioner according to one of claims 4 to 2 wherein said capacity value of said air condition is compressor speed and said capacity variation value is a speed variation value of a compressor.
Claim 28
Dependent Claim
298 words
An air conditioner comprising: a room temperature sensor which detects a temperature inside a room to be air conditioned; temperature setting means for variably setting a set room temperature; mode selecting means for selecting one of a cooling mode and a heating mode of operation; timer means for setting mutually different values of a set time depending on said selected cooling mode and heating mode and outputting a signal every time said set time has elapsed; temperature variation detection means for detecting variations of said set room temperature which has been set by said temperature setting means; capacity varying means for varying a capacity of said air conditioner according to a first difference in said set room temperature before said detected variation and after said detected variation; memory means for storing a value of said detected temperature every time said timer means outputs said signal; first calculating means for calculating a second difference between said set room temperature set by said temperature setting means and said temperature detected by said room temperature sensor every time said timer means outputs said signal; second calculating means for calculating a third difference between said detected temperature previously stored in said memory means and a presently detected temperature, every time said timer means outputs said signal; capacity variation determining means for determining a variation of said capacity of said air conditioner based on said second difference calculated by said first calculating means and said third difference calculated by said second calculating means; capacity setting means for setting a new air conditioning capacity value by adding said variation of said capacity of said air conditioner to a value of said capacity of said air conditioner; and performance controlling means for controlling said air conditioner in accordance with said new air conditioning capacity value.
Claim 29
Dependent Claim
298 words
An air conditioner comprising: a room temperature sensor which detects a temperature inside a room to be air conditioned; temperature setting means for variably setting a set room temperature; mode selecting means for selecting one of a cooling mode and a heating mode of operation; timer means for setting mutually different values of a set time depending on said selected cooling mode and heating mode and outputting a signal every time said set time has elapsed; temperature variation detection means for detecting variations of said set room temperature which has been set by said temperature setting means; capacity varying means for varying a capacity of said air conditioner according to a first difference in said set room temperature before said detected variation and after said detected variation; memory means for storing a value of said detected temperature every time said timer means outputs said signal; first calculating means for calculating a second difference between said set room temperature set by said temperature setting means and said temperature detected by said room temperature sensor every time said timer means outputs said signal; second calculating means for calculating a third difference between said detected temperature previously stored in said memory means and a presently detected temperature, every time said timer means outputs said signal; capacity variation determining means for determining a variation of said capacity of said air conditioner based on said second difference calculated by said first calculating means and said third difference calculated by said second calculating means; capacity setting means for setting a new air conditioning capacity value by adding said variation of said capacity of said air conditioner to a value of said capacity of said air conditioner; and performance controlling means for controlling said air conditioner in accordance with said new air conditioning capacity value.
Claim 30
Independent Claim
128 words
A method for controlling an air conditioner which can operate in at least two operating modes out of a cooling mode, a heating mode, and a dehumidifying mode, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time a set time has elapsed determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; varying a value for said set time which is dependent on said operating mode; and updating an operating condition of said air conditioner each time said set time has elapsed.
Claim 31
Independent Claim
128 words
A method for controlling an air conditioner which can operate in at least two operating modes out of a cooling mode, a heating mode, and a dehumidifying mode, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time a set time has elapsed determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; varying a value for said set time which is dependent on said operating mode; and updating an operating condition of said air conditioner each time said set time has elapsed.
Claim 32
Independent Claim
102 words
A method of varying a set time to calculate a room temperature variation for an air conditioner, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and employing a value for said set time which is dependent on an operating mode.
Claim 33
Independent Claim
102 words
A method of varying a set time to calculate a room temperature variation for an air conditioner, said method comprising the steps of: determining a difference between a set temperature and a sensed temperature detected by a room temperature sensor every time said set time has elapsed; determining an amount of variation of said sensed temperature over said set time; determining a capacity value of said air conditioner based on said difference between said set temperature and said sensed temperature and based on said amount of variation; and employing a value for said set time which is dependent on an operating mode.
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