The invention belongs to the technical field of new energy automobiles, and discloses a control method of an energy flow system based on transcritical CO2 thermal management. The energy flow system comprises a lithium ion battery, a motor, a CO2 compressor, an outdoor heat exchanger, a front-end water radiator, an indoor heat exchanger, a battery cooler, a four-way reversing valve, a heat regenerator, a first electronic expansion valve, a second electronic expansion valve, a first electronic water pump, a second electronic water pump, an indoor fan, an outdoor fan and a gas-liquid separator. In the control method, controlled parts comprise a CO2 compressor, a first electronic expansion valve, a second electronic expansion valve, a first electronic water pump, a second electronic water pump, an indoor fan and an outdoor fan. In the technical scheme provided by the invention, different requirements of a battery, a motor and a passenger compartment are considered as a whole, and comprehensive control is carried out in combination with the characteristics of the transcritical CO2 cycle, so that the whole vehicle performance of the new energy vehicle can be improved in all directions.
本发明属于新能源汽车技术领域,公开了一种基于跨临界CO2热管理的能量流系统的控制方法;其中,所述能量流系统包括:锂离子电池、电机、CO2压缩机、室外换热器、前端水散热器、室内换热器、电池冷却器、四通换向阀、回热器、第一电子膨胀阀、第二电子膨胀阀、第一电子水泵、第二电子水泵、室内风机、室外风机和气液分离器;所述控制方法中,被控部件包括:CO2压缩机、第一电子膨胀阀、第二电子膨胀阀、第一电子水泵、第二电子水泵、室内风机和室外风机。本发明提供的技术方案中,统筹考量了电池、电机、乘员舱的不同需求,并且结合跨临界CO2循环的特性进行综合控制,能够全方位地提升新能源汽车的整车性能。
Energy flow system control method based on transcritical CO2 thermal management
一种基于跨临界CO2热管理的能量流系统的控制方法
2024-05-14
Patent
Electronic Resource
Chinese
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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