PROBLEM TO BE SOLVED: To suppress temperature fluctuation of a thermal medium accompanied with switching of the thermal medium which flows through an instrument of a temperature adjustment target.SOLUTION: A vehicular heat management system comprises: a heat exchanger 15 for thermal medium heating which heats a thermal medium by implementing heat exchange between the thermal medium discharged by a second pump 12 and a high pressure side refrigerant of a refrigeration cycle 31; a heat exchanger 14 for thermal medium cooling which cools the thermal medium by implementing heat exchange between the thermal medium discharged by a first pump 11 and a low pressure side refrigerant of the refrigeration cycle 31; instruments 18, 19, 20 of a temperature adjustment target which are temperature-controlled by the thermal medium; a first switching valve 21 and a second switching valve 22 which switch a cooling state in which the thermal medium is circulated between the heat exchanger 14 for thermal medium cooling and the instruments 18, 19, 20 of a temperature adjustment target and a heating state in which the thermal medium is circulated between the heat exchanger 15 for thermal medium heating and the instruments 18, 19, 20 of a temperature adjustment target; and compressor control means 70d which increases refrigerant discharging capacity of the compressor 32 of the refrigeration cycle 31 while or before the first switching valve 21 and the second switching valve 22 switch the cooling state and the heating state.
【課題】温度調節対象機器を流れる熱媒体の切り替えに伴う熱媒体温度変動を抑制する。【解決手段】第2ポンプ12によって吐出された熱媒体と冷凍サイクル31の高圧側冷媒とを熱交換させて熱媒体を加熱する熱媒体加熱用熱交換器15と、第1ポンプ11によって吐出された熱媒体と冷凍サイクル31の低圧冷媒とを熱交換させて熱媒体を冷却する熱媒体冷却用熱交換器14と、熱媒体によって温度調節される温度調節対象機器18、19、20と、温度調節対象機器18〜20に対して、熱媒体冷却用熱交換器14との間で熱媒体が循環する冷却状態と、熱媒体加熱用熱交換器15との間で熱媒体が循環する加熱状態とを切り替える第1切替弁21および第2切替弁22と、第1切替弁21および第2切替弁22が冷却状態と加熱状態とを切り替えている最中、または切り替える前に、冷凍サイクル31の圧縮機32の冷媒吐出能力を増加させる圧縮機制御手段70dとを備える。【選択図】図12
VEHICULAR HEAT MANAGEMENT SYSTEM
車両用熱管理システム
2015-08-03
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 |
European Patent Office | 2020
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