JPS6449852A - Method of controlling variable capacity compressor in chilling unit - Google Patents
Method of controlling variable capacity compressor in chilling unitInfo
- Publication number
- JPS6449852A JPS6449852A JP20724087A JP20724087A JPS6449852A JP S6449852 A JPS6449852 A JP S6449852A JP 20724087 A JP20724087 A JP 20724087A JP 20724087 A JP20724087 A JP 20724087A JP S6449852 A JPS6449852 A JP S6449852A
- Authority
- JP
- Japan
- Prior art keywords
- capacity control
- signal
- outputs
- supply air
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To improve the feeling of cooling by decreasing capacity control constants when the supply air temperature at the outlet of an evaporator is within an allowable temperature region including a target temperature otherwise increasing the capacity control constants and operating a capacity control amount thereby suppressing significant hunting of the supply air temperature. CONSTITUTION: When a measured supply air temperature Tf does not exceeds an allowable temperature region ΔT, a temperature fluctuation comparing/deciding means 25 outputs a normal signal S1 and a capacity control constant altering means 26 outputs a capacity control constant small signal S3. Based on the small signal S3, an operation controller 1-7 operates a capacity control amount to produce a capacity control signal proportional thereto thus controlling a variable capacity compressor 2. When the measured supply air temperature Tt exceeds the allowable temperature region ΔT, the temperature fluctuation comparing/deciding means 25 outputs an abnormal signal S2 and the capacity control constant altering means 26 outputs a capacity control constant large signal S4. Based on the large signal S4, the operation controller 17 operates a capacity control amount to produce a capacity control signal proportional thereto thus controlling the variable capacity compressor 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20724087A JPS6449852A (en) | 1987-08-20 | 1987-08-20 | Method of controlling variable capacity compressor in chilling unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20724087A JPS6449852A (en) | 1987-08-20 | 1987-08-20 | Method of controlling variable capacity compressor in chilling unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6449852A true JPS6449852A (en) | 1989-02-27 |
Family
ID=16536539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20724087A Pending JPS6449852A (en) | 1987-08-20 | 1987-08-20 | Method of controlling variable capacity compressor in chilling unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6449852A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002147874A (en) * | 2000-11-10 | 2002-05-22 | Seiko Instruments Inc | Mode-switched type refrigeration system controller and control method therefor |
-
1987
- 1987-08-20 JP JP20724087A patent/JPS6449852A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002147874A (en) * | 2000-11-10 | 2002-05-22 | Seiko Instruments Inc | Mode-switched type refrigeration system controller and control method therefor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4276753A (en) | Cryogenic freezing tunnel control system | |
EP0730128B1 (en) | Fuzzy logic control of liquid injection for motor cooling | |
JPS6460778A (en) | Capacity controller for variable capacity compressor in cooler | |
CA2098680A1 (en) | Microprocessor-based controller | |
KR920016790A (en) | Control method of air conditioner and air conditioner using the method | |
JPS6449852A (en) | Method of controlling variable capacity compressor in chilling unit | |
JPS6423049A (en) | Method of advance operation control of air conditioner | |
JPS5637441A (en) | Control device for air conditioner | |
DE3475564D1 (en) | Control method for a compound refrigeration plant | |
JPS6414558A (en) | Refrigerating circuit for vehicle air- conditioning | |
ES2158756A1 (en) | Speed control for air supply fan of air conditioner | |
JPS6433457A (en) | Controller for air conditioner | |
JPS5618248A (en) | Defrosting control apparatus of air conditioner | |
DE3475944D1 (en) | Refrigerator | |
JPS5667617A (en) | Temperature controller of cooler for vehicle | |
JPS57148130A (en) | Separate type air conditioner | |
JPS5667619A (en) | Temperature controller of cooler for vehicle | |
JPS54146446A (en) | Controlling capacity of air conditioner | |
JPS57160709A (en) | Air conditioning and refrigerating controller | |
JPS5854408A (en) | Temperature controlling device for refrigerating plant | |
JPS57205216A (en) | Air conditioner for automobile | |
JPS6463670A (en) | Method of controlling capacity of variable displacement compressor in cooling device | |
JPS57201714A (en) | Adjusting method of cooling capability in air conditioning device for automobile | |
JPS54147547A (en) | Temperature controlling capacity controller | |
JPS6423081A (en) | Temperature control for electric refrigerator |