To provide a refrigerant circuit system and a control method for the same, capable of appropriately and efficiently controlling each of a plurality of refrigerant circuits.SOLUTION: A refrigerant circuit system includes: a compressor 21 compressing a refrigerant; a condenser 20 that causes the compressed refrigerant to radiate heat; first and second expansion valves 31, 32 each decompressing and expanding the refrigerant from which heat has been radiated by controlling a valve opening; a first evaporator 41 that causes the refrigerant decompressed and expanded by the first expansion valve to absorb heat; a second evaporator 42 provided in parallel with the first evaporator and causing the refrigerant decompressed and expanded by the second expansion valve to absorb heat; and a control device 9 controlling the valve opening of the first expansion valve, the valve opening of the second expansion valve and a compression ratio of the refrigerant by the compressor on the basis of first information related to a temperature of a first temperature control target of which temperature is controlled by the first evaporator, second information related to a temperature of a second temperature control target of which temperature is controlled by the second evaporator and third information related to a superheating degree of the refrigerant at an inlet of the compressor.SELECTED DRAWING: Figure 5
【課題】複数の冷媒回路をそれぞれ適切で効率的に制御することができる冷媒回路システムおよびその制御方法の提供を図る。【解決手段】冷媒を圧縮させるコンプレッサ21と、圧縮された冷媒を放熱させる凝縮器20と、放熱された冷媒を、それぞれの弁開度を調整して減圧膨張させる第1および第2膨張弁31,32と、第1膨張弁で減圧膨張された冷媒を吸熱させる第1蒸発器41と、第1蒸発器と並列に設けられ、第2膨張弁で減圧膨張された冷媒を吸熱させる第2蒸発器42と、第1蒸発器により温度調整される第1温調対象の温度に関連する第1情報、第2蒸発器により温度調整される第2温調対象の温度に関連する第2情報およびコンプレッサの入口における冷媒の過熱度に関連する第3情報に基づいて、第1膨張弁の弁開度、第2膨張弁の弁開度およびコンプレッサによる冷媒の圧縮率を制御する制御装置9と、を備える。【選択図】図5
REFRIGERANT CIRCUIT SYSTEM AND CONTROL METHOD FOR THE SAME
冷媒回路システムおよびその制御方法
2023-03-15
Patent
Elektronische Ressource
Japanisch
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F24F Klimatisierung , AIR-CONDITIONING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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