The invention provides an automobile thermal management system, a thermal management method and an automobile. A compressor, a condenser and an evaporator of the automobile thermal management system are sequentially connected to form a refrigerant circulation loop, a bypass branch is connected between an inlet and an outlet of the compressor, a bypass switch valve is arranged on the bypass branch, and a loop switch valve is arranged on the refrigerant circulation loop; the controller is connected with the bypass switch valve and the loop switch valve, and the controller is used for controlling the loop switch valve to enable the refrigerant circulation loop to be communicated and used for controlling on-off of the bypass switch valve according to the exhaust pressure of an outlet of the compressor. The controller is used for controlling the opening degree of the bypass switch valve according to the air suction pressure of the inlet of the compressor and the temperature difference between the refrigerant temperature of the refrigerant outlet of the evaporator and the air inlet temperature of the air inlet of the evaporator; and controlling the opening degree of the loop switch valve according to the exhaust superheat degree of the outlet of the compressor. The refrigerant is prevented from flowing backwards to the evaporator, normal operation of the system is guaranteed, and energy consumption is reduced.
本申请提供一种汽车热管理系统、热管理方法及汽车。汽车热管理系统的压缩机、冷凝器与蒸发器依次连接并形成冷媒循环回路,旁通支路连接于压缩机的进口和出口之间,旁路开关阀设于旁通支路,回路开关阀设于冷媒循环回路;控制器与旁路开关阀和回路开关阀连接,控制器用于控制回路开关阀,使冷媒循环回路连通,且用于根据所述压缩机的出口的排气压力控制所述旁路开关阀的通断,以及用于根据压缩机的进口的吸气压力、蒸发器的冷媒出口的冷媒温度与蒸发器的进风口的进风温度的温差,控制旁路开关阀的开度;及根据压缩机的出口的排气过热度,控制回路开关阀的开度。本申请防止冷媒倒灌至蒸发器,保证系统正常运行,且降低能耗。
Automobile thermal management system, thermal management method and automobile
汽车热管理系统、热管理方法及汽车
2023-10-24
Patent
Elektronische Ressource
Chinesisch
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 |
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