Claims
- 1. A method of controlling a heating/cooling system, comprising the steps of:
- determining whether a key signal indicative of a room temperature changing speed is input to a controller from a keyboard, said key signal corresponding to a desired speed for changing a room temperature;
- setting proportional integral differential coefficients corresponding to said key signal, when said determining step determines said key signal has been input, for enabling system loads to be operated for a predetermined time period;
- determining an error temperature detecting time;
- detecting a difference between a set temperature and a current room temperature when the error temperature detecting time has elapsed;
- determining error calories corresponding to said difference in accordance with a proportional integral differential operation utilizing said proportional integral differential coefficients;
- storing said error calories and adding/subtracting said error calories to/from a previous calorie to determine a current calorie; and,
- controlling system loads to adjust said room temperature to said set temperature in accordance with said current calorie.
- 2. The method of controlling a heating/cooling system as claimed in claim 1, further comprising:
- setting control parameters for system loads after storing said error calories.
- 3. A method of controlling a heating/cooling system, comprising the steps of:
- providing at a first time a set temperature of an area to be temperature regulated;
- detecting a current temperature of said area at a second time;
- determining an error calorie value in dependence upon a proportional integral differential operation, said error caloric value corresponding to an amount of energy required to change the current temperature of the area to the set temperature; and
- initiating one of operations for warming and cooling said area in accordance with the error calorie value.
- 4. The method of claim 3, further comprising the steps of:
- determining whether a key signal indicative of a room temperature changing speed is input to a controller from a keyboard, said key signal corresponding to a desired speed for changing a room temperature;
- providing, when it is determined that said key signal has been input, predetermined system load control coefficients, corresponding to proportional integral differential coefficients, for operating system loads dependent upon a room temperature changing speed;
- determining an error temperature as a difference between said current temperature and said set temperature when an error detecting time has elapsed, wherein said error caloric value corresponds to said error temperature.
- 5. The method of claim 4, wherein the step of providing predetermined system load control coefficient comprises:
- setting low speed load control coefficients corresponding to operating system loads for compensating for the error caloric value when said room temperature changing speed is a low speed;
- setting medium speed load control coefficients corresponding to operating system loads for compensating for the error calorie value when said room temperature changing speed is a medium speed;
- setting high speed load control coefficients corresponding to operating system loads for compensating for the error calorie value when said room temperature changing speed is a high speed.
- 6. A method of controlling a heating/cooling system comprising a microprocessor for controlling the system, means for user interface with the microprocessor, a display of information processed in the microprocessor during operation of the system, sensor means for sensing temperature of an area to be temperature regulated, and means for heating/cooling said area, the method comprising the steps of:
- providing at a first time a set temperature of an area to be temperature regulated;
- detecting a current temperature of said area at a second time;
- determining a temperature difference by comparing the set temperature and the current temperature;
- determining an error calorie value in dependence upon a proportional integral differential operation utilizing said temperature difference, said error calorie value corresponding to an amount of energy required to change the current temperature of the area to the set temperature; and
- providing a selected operation of one of warming and cooling said area in accordance with the error caloric value.
- 7. The method of claim 6, further comprising the steps of:
- determining whether a key signal indicative of a room temperature changing speed is input to a controller from a keyboard, said key signal corresponding to a desired speed for changing a room temperature,
- providing, when it is determined that said key signal has been input, predetermined system load control coefficients, corresponding to proportional integral differential coefficients, for operating system loads dependent upon a room temperature changing speed; and
- determining the temperature difference when an error detecting time has elapsed.
- 8. The method of claim 7, said step of providing predetermined system load coefficients comprising the steps of:
- setting low speed load control coefficients corresponding to operating system loads when compensating for the error calorie value at a low speed;
- setting medium speed load control coefficients corresponding to operating system loads when compensating for the error caloric value at a medium speed;
- setting high speed load control coefficients corresponding to operating system loads when compensating for the error caloric value at a high speed.
- 9. A heating/cooling system comprising:
- a proportional integral differential controller responding to differences between a current room temperature and a target temperature;
- means for enabling user interaction with the controller;
- sensor means for detecting said current room temperature;
- means controlled by the controller, for circulating air in a room exhibiting said current room temperature;
- a blower motor controlled by the controller and connected to a burner;
- a pump controlled by the controller and connected to the burner; and
- wherein said controller:
- determines whether a key signal for a desired room temperature changing speed is input via said means for enabling user interaction with the controller;
- sets coefficients for a proportional integral differential operation, said coefficients corresponding to the desired room temperature changing speed, when said key signal is input, and enabling system loads to be operated for a predetermined time period;
- sets an error detecting time;
- detects a difference between the target temperature and the current room temperature when the error detecting time has elapsed;
- determines error calories corresponding to said difference in accordance with the proportional integral differential operation;
- stores said error calories and adds or subtracts said error calories to or from a previous calorie to determine a current calorie; and,
- controls system loads to adjust said room temperature to said target temperature in accordance with said current calorie.
Priority Claims (1)
Number |
Date |
Country |
Kind |
19140/1990 |
Nov 1990 |
KRX |
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CROSS REFERENCE TO RELATED APPLICATIONS
This is a continuation-in-part of U.S. patent application Ser. No. 07/793,462 and claims all benefits accruing under 35 U.S.C .sctn.120. This application makes reference to, incorporates the same herein, and claims all benefits accruing under 35 U.S.C .sctn.119 from an application entitled Temperature Control Method For Air Conditioner earlier filed in the Korean Industrial Property Office on 24 Nov. 1990, which was duly assigned Ser. No. 90-19140 by that Office.
US Referenced Citations (8)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0425454 |
May 1991 |
EPX |
0068548 |
May 1980 |
JPX |
Non-Patent Literature Citations (2)
Entry |
Operator Convenience is Key as Process Controllers Evolve Henry A. Morris, Control Engineering, Mar. 1981. |
Writing P-I-D. Control Loops Easily in Basic, Control Engineering, James Fishbeck, vol. 25 No. 10 Oct. 1978. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
793462 |
Nov 1991 |
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