JPH0370512U - - Google Patents
Info
- Publication number
- JPH0370512U JPH0370512U JP13347789U JP13347789U JPH0370512U JP H0370512 U JPH0370512 U JP H0370512U JP 13347789 U JP13347789 U JP 13347789U JP 13347789 U JP13347789 U JP 13347789U JP H0370512 U JPH0370512 U JP H0370512U
- Authority
- JP
- Japan
- Prior art keywords
- engine load
- valve opening
- predetermined value
- refrigeration cycle
- vehicle
- 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
- 238000005057 refrigeration Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 1
Landscapes
- Air-Conditioning For Vehicles (AREA)
Description
第１図は車両用冷凍サイクルの制御装置の全体
構成を示す図、第２図は本考案に係る冷凍サイク
ル制御プログラムを示すフローチヤート、第３図
は弁開度ｙとエンジン負荷Ｑ、及び冷媒吐出温度
Ｔｄとの関係を示すグラフである。
１……冷凍サイクル、２……圧縮機、５……膨
張弁、２０……コントロール・ユニツト、２３…
…スロツトル弁開度センサ。
Fig. 1 is a diagram showing the overall configuration of a control device for a vehicle refrigeration cycle, Fig. 2 is a flowchart showing a refrigeration cycle control program according to the present invention, and Fig. 3 is a diagram showing valve opening degree y, engine load Q, and refrigerant. It is a graph showing the relationship with discharge temperature Td. DESCRIPTION OF SYMBOLS 1... Refrigeration cycle, 2... Compressor, 5... Expansion valve, 20... Control unit, 23...
...Throttle valve opening sensor.
Claims (1)
入圧力が所定値となるように内部制御を行う圧縮
機と、弁開度が電気的に制御される電気式膨張弁
とを備えた車両用冷凍サイクルの制御装置におい
て、前記エンジンの負荷を検出するエンジン負荷
検出手段と、該エンジン負荷検出手段によりエン
ジン負荷が所定値以上であると判別されたときに
前記膨張弁の弁開度を、エンジン負荷が前記所定
値以上となつた時点での弁開度に応じた割合で減
少するように制御する制御手段とを備えた車両用
冷凍サイクルの制御装置。 A refrigeration cycle for a vehicle, which is equipped with a compressor that is driven by the vehicle's engine and is internally controlled so that the suction pressure is at a predetermined value, and an electric expansion valve whose valve opening is electrically controlled. The control device includes an engine load detection means for detecting the engine load, and a valve opening degree of the expansion valve when the engine load detection means determines that the engine load is equal to or higher than a predetermined value. A control device for a vehicular refrigeration cycle, comprising: control means for controlling the valve opening to decrease at a rate corresponding to a valve opening at a time when the opening reaches a predetermined value or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13347789U JPH0370512U (en) | 1989-11-16 | 1989-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13347789U JPH0370512U (en) | 1989-11-16 | 1989-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0370512U true JPH0370512U (en) | 1991-07-16 |
Family
ID=31680880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13347789U Pending JPH0370512U (en) | 1989-11-16 | 1989-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0370512U (en) |
-
1989
- 1989-11-16 JP JP13347789U patent/JPH0370512U/ja active Pending