The invention provides a hybrid engineering machinery heat management system, a control method and an excavator. The hybrid engineering machinery heat management system comprises a motor electric control heat management module, an engine high-temperature heat management module and an engine middle cold and heat management module. According to the motor electric control heat management module, an electronic water pump drives cooling liquid to flow and flow through a motor, after motor control, heat is brought to a motor electric control radiator, then a high-voltage electronic fan carries out forced air cooling on the cooling liquid carrying heat in the radiator, and the temperature of the cooling liquid in the radiator is reduced. Heat management heat dissipation circulation is conducted in cycles, and it is guaranteed that electric control of the motor works at the optimal temperature. The engine high-temperature heat management system and the medium-temperature heat management system are similar to the motor electric control heat management system in heat dissipation principle, only an electronic water pump in the motor electric control heat management system is replaced with a mechanical water pump, and kinetic energy is provided for flowing of cooling liquid. The heat dissipation requirement can be met by selecting several high-pressure fans, the machine purchase cost is reduced, and meanwhile the electrical design difficulty is reduced.
本发明提供一种混动工程机械热管理系统、控制方法及挖掘机,包括电机电控热管理模块、发动机高温热管理模块、发动机中冷热管理模块。电机电控热管理模块由电子水泵驱动冷却液流动,流经电机、电机控制后,将热量带到电机电控散热器,再由高压电子风扇对散热器中携带热量的冷却液进行强制风冷,降低散热器中冷却液温度。以此周而复始进行热管理散热循环,保证电机电控工作在最佳温度。发动机高温热管理系统和中冷热管理系统与电机电控热管理系统散热原理类似,仅仅将电机电控热管理系统中的电子水泵更换为机械水泵,为冷却液流动提供动能。选用几个高压风扇即可满足散热需求,降低了购机成本,同时降低了电气设计难度。
Hybrid engineering machinery thermal management system, control method and excavator
一种混动工程机械热管理系统、控制方法及挖掘机
24.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / 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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