To provide a vehicular heat exchange system capable of suppressing decrease of a cruising distance due to electric power consumption of a high-voltage heater, etc. without deteriorating heating even in an environment of a low outside air temperature.SOLUTION: An outdoor heat exchanger 210 of a refrigerant circulation circuit 200 is disposed on a vehicle rear side of a radiator 110 of a coolant circulation circuit 100. A liquid temperature of a coolant before cooling of a power unit 130 is detected. When the detected liquid temperature is a predetermined temperature or higher, a circulation flow rate in the coolant circulation circuit 100 is maintained or increased, and when the detected liquid temperature is lower than the predetermined temperature, the circulation flow rate in the coolant circulation circuit 100 is reduced. Due to this configuration, in the outdoor heat exchanger 210 of the refrigerant circulation circuit 200, the refrigerant is caused to appropriately absorb heat, electric power consumption of a high-voltage heater, etc. on an air-conditioning facility side is suppressed, and decrease of a cruising distance can be suppressed without deteriorating heating even in an environment of a low outside air temperature.SELECTED DRAWING: Figure 1
【課題】低外気の環境であっても暖房の効きを落とすことなく、高電圧ヒーター等の電力消費による航続距離の低下を抑えることができる車両用熱交換システムを提供する。【解決手段】冷却液循環回路100のラジエータ110の車両後方側に、冷媒循環回路200の室外熱交換器210を配置し、パワーユニット130を冷却前の冷却液の液温を検出し、検出された液温が所定の温度以上であった場合には、冷却液循環回路100内の循環流量を維持または増量し、検出された液温が所定の温度未満であった場合には、冷却液循環回路100内の循環流量を減量することにより、冷媒循環回路200の室外熱交換器210において、冷媒に対して適切に吸熱をさせ、空調設備側の高電圧ヒーター等の消費電力を抑え、低外気の環境であっても暖房の効きを落とすことなく、航続距離の低下を抑えることができる。【選択図】図1
VEHICULAR HEAT EXCHANGE SYSTEM
車両用熱交換システム
2022-01-21
Patent
Electronic Resource
Japanese
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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
VEHICULAR HEAT EXCHANGE SYSTEM, VEHICULAR HEAT EXCHANGE METHOD, AND PROGRAM
European Patent Office | 2019
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