The invention relates to the technical field of new energy power systems, and discloses a power system of a multifunctional hybrid wheel excavator, which is characterized in that the output end of an engine is connected with the input end of a generator, and the generator is connected with a generator controller through a high-voltage circuit; the high-voltage distribution box is connected with the generator controller, the power battery and the power battery box through high-voltage circuits, the main drive motor controller is connected with the main drive motor, the high-voltage distribution box and the generator controller through high-voltage circuits, and the hydraulic motor controller is connected with the hydraulic motor and the high-voltage distribution box through high-voltage circuits. The rotary motor controller is connected with the rotary motor and the high-voltage distribution box through a high-voltage circuit; electric energy transmission is adopted to replace mechanical direct connection output of a traditional power system, battery peak clipping and valley filling are utilized, engine load rate conversion is reduced, the overall transmission efficiency is improved, pollutant emission is reduced, meanwhile, rapid warming-up of the low-temperature engine is achieved through an engine rapid warming-up control strategy, and energy consumption and emission are reduced.
本发明涉及新能源动力系统技术领域,公开了多功能混动轮式挖掘机的动力系统,包括:发动机的输出端与发电机的输入端连接,发电机与发电机控制器通过高压电路连接,高压配电箱与发电机控制器、动力电池和动力电池箱通过高压电路连接,主驱电机控制器与主驱电机、高压配电箱和发电机控制器通过高压电路连接,液压电机控制器与液压电机和高压配电箱通过高压电路连接,回转电机控制器与回转电机和高压配电箱通过高压电路连接;本发明采用电能传递替代传统动力系统的机械直联输出,利用电池削峰填谷,减少发动机负荷率变换,提升整体的传动效率并减少污染排放,同时通过发动机快速暖机控制策略实现低温发动机快速暖机,降低能耗,降低排放。
Power system and control method of multifunctional hybrid wheel excavator
多功能混动轮式挖掘机的动力系统和控制方法
2024-05-03
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / E02F Baggern , DREDGING / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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