本发明公开一种基于ECMS的PHEV四驱转矩分配方法,具体包括:步骤1,根据动力电池的剩余电量计算等效燃油消耗因子;步骤2,计算瞬时总等效燃油消耗率;步骤3,将发动机、BSG电机和后桥电机的所有工作转矩组合换算至驱动轮工作转矩,根据驱动轮工作转矩的范围,确定各动力源工作扭矩范围;步骤4,在各动力源的实际工作转矩范围内,求解瞬时总等效燃油消耗率的最小值;步骤5,将最小瞬时总等效燃油消耗率对应的各动力源的工作转矩作为PHEV最佳工作扭矩进行分配;本发明简化了转矩分配的计算过程,合理分配混合动力汽车各动力源的转矩,使得车辆的动力电池荷电状态保持平衡,等效油耗降低,车辆的驾驶性及乘车舒适性提高。

    An ECMS-based PHEV four-drive torque distribution method is disclosed. The method comprises: step 1, calculating an equivalent fuel consumption factor; step 2, calculating instantaneous total equivalent fuel consumption rate; step 3, converting all operating torque combinations of an engine, a BSG motor and a rear axle motor into the operating torque of a driving wheel, and determining the operating torque range of each power source; step 4, solving the minimum value of the instantaneous total equivalent fuel consumption rate within the actual operating torque range of each power source; and step 5, taking the operating torque of each power source corresponding to the minimum instantaneous total equivalent fuel consumption rate as the PHEV optimal operating torque for distribution.


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    Title :

    基于ECMS的PHEV四驱转矩分配方法


    Publication date :

    2021-08-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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



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