The invention relates to a hybrid power system dual-motor torque limit value distribution method and device, and relates to the technical field of automobile control, and the method comprises the steps: obtaining a predicted current limit value of a power battery; obtaining a current value of the DC/DC converter; respectively obtaining a first torque limit value and a third torque limit value according to the working conditions of a first motor and a second motor; obtaining a second torque limit value and a fourth torque limit value according to the current vehicle working condition performance; and according to the predicted current limit value of the power battery, the current value of the DC/DC converter, the first torque limit value, the second torque limit value, the third torque limit value, the fourth torque limit value and the priorities of the first motor and the second motor under the current vehicle working condition, obtaining the final predicted current limit value of the first motor and the final predicted current limit value of the second motor. According to the method, through the reasonable distribution of the torque limit values of the double motors, the motor capacity with high priority on the vehicle performance influence is preferably met, the working condition of damaging the battery performance is avoided, the service life of the battery is ensured, and the control precision is improved.

    本发明涉及一种混动系统双电机扭矩限值分配方法及装置,涉及汽车控制技术领域,该方法包括获取动力电池的预测电流限值;获取DC/DC变换器的电流值;根据第一电机和第二电机自身工况分别获得第一扭矩限值和第三扭矩限值;根据当前车辆工况性能获得第二扭矩限值和第四扭矩限值;以及根据动力电池的预测电流限值、DC/DC变换器的电流值、第一扭矩限值、第二扭矩限值、第三扭矩限值、第四扭矩限值以及当前车辆工况下第一电机和第二电机的优先级获得第一电机的最终预测电流限值和第二电机的最终预测电流限值。本发明通过对双电机扭矩限值的合理分配,优先满足了对车辆性能影响优先级高的电机能力,避免损害电池性能的工况,保证电池的适用寿命,提高控制精度。


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    Titel :

    Hybrid power system dual-motor torque limit value distribution method and device


    Weitere Titelangaben:

    一种混动系统双电机扭矩限值分配方法及装置


    Beteiligte:
    TANG GAOQIANG (Autor:in) / LIU BOBO (Autor:in) / ZHANG JIAN (Autor:in) / HU LIANG (Autor:in)

    Erscheinungsdatum :

    2021-09-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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