The invention discloses an energy management control method for an extended-range automobile. The energy management control method comprises the following steps: setting an upper limit value and a lower limit value of working current of a power battery; setting a value for increasing or decreasing a flag bit Patterysign; acquiring peak power generation power of system characteristics of the range extender; calculating an instantaneous power generation power limit value Pmax of the range extender; according to the magnitude relation between the instantaneous power generation power limit value of the range extender and the target torque rotating speed of the range extender at the last moment, setting a range extending type power limit increase and decrease flag bit Plimtsign; comprehensively judging a generation power increase and decrease mark P < sign > of the range extender according to the Pbath < sign > and the P < limtsign >; setting a range extender rotating speed torque distribution optimal economic continuous broken line on the basis; the target rotating speed of the engine at the current moment and the current target torque of the generator are controlled to change along the rotating speed and torque distribution optimal economic broken line rule of the range extender; and the jump of the rotating speed and the torque is eliminated, the overuse of the range extender is avoided, the working stability and the fuel economy of the system are improved, the durability of the battery is improved, and the real-time performance and the accuracy of the system are ensured.

    本发明公开了一种增程式汽车的能量管理控制方法,包括如下步骤:设定动力电池工作电流的上限值和下限值;设定增减标志位Pbatterysign的值;获取增程器系统特性的峰值发电功率;计算增程器瞬时发电功率限值Pmax;根据增程器的瞬时发电功率限值与增程器上一时刻目标转矩转速的大小关系设定增程式功率限制增减标志位Plimtsign;根据Pbatterysign和Plimtsign综合判断增程器的发电功率增减标志Psign;为基础设定增程器转速转矩分配最佳经济连续折线;控制发动机当前时刻的目标转速与发电机当前的目标转矩沿着增程器转速转矩分配最佳经济折线规律的变换;消除了转速和转矩的跳变,避免增程器过度使用,提高了系统工作的稳定性、燃油经济型,提高了电池的耐久性和保证了系统的实时性和准确性。


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    Titel :

    Energy management control method for extended-range automobile


    Weitere Titelangaben:

    一种增程式汽车的能量管理控制方法


    Beteiligte:
    WANG LONG (Autor:in) / LIU QING (Autor:in) / XIANG XIAOLONG (Autor:in) / XIONG YONG (Autor:in) / FU CHANG (Autor:in) / PANG DI (Autor:in)

    Erscheinungsdatum :

    2022-07-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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