The invention discloses a hybrid power system of a new energy automobile, belongs to the technical field of new energy automobiles, and solves the technical problem of poor stability caused by the fact that the response speed of a fuel cell lags behind load change. The system comprises a battery management system, a hydrogen fuel cell power supply system, a power monitoring device, a bidirectional direct current rectifier, a power battery system, a control module, a power battery charger, a traction inverter, a traction motor, an auxiliary inverter, a chopping module and a brake resistor. When the automobile is started, the control module controls the power battery system to provide all starting electric energy; during driving, the output of the hydrogen fuel cell power supply system is stable, and the control module controls the hydrogen fuel cell power supply system to gradually replace the power cell system for output; and when the vehicle runs to a relatively stable stage, the control module judges to perform energy recovery or independent power supply of the hydrogen fuel cell power supply system or combined power supply of the hydrogen fuel cell power supply system and the power battery system according to the speed and the torque.

    本发明公开了一种新能源汽车混合动力系统,属于新能源汽车技术领域,解决燃料电池的响应速度滞后于负荷变化造成稳定性差的技术问题。系统包括电池管理系统、氢燃料电池供电系统、功率监测装置、双向直流整流器、动力电池系统、控制模块、动力电池充电机、牵引逆变器、牵引电机、辅助逆变器、斩波模块、制动电阻;汽车启动时,控制模块控制动力电池系统提供全部的启动电能;行驶进行时,氢燃料电池供电系统的输出稳定,则控制模块控制氢燃料电池供电系统将逐渐取代动力电池系统进行输出;车辆行驶达到相对稳定阶段,控制模块根据速度、转矩判定进行能量回收或氢燃料电池供电系统单独供电或氢燃料电池供电系统、动力电池系统进行联合供电。


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    Titel :

    New energy automobile hybrid power system


    Weitere Titelangaben:

    一种新能源汽车混合动力系统


    Beteiligte:
    GUAN WEI (Autor:in) / YANG XIANMAO (Autor:in) / PAN MINGZHANG (Autor:in) / ZHANG TIAN (Autor:in)

    Erscheinungsdatum :

    25.02.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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