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.
基于ECMS的PHEV四驱转矩分配方法
2021-08-03
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 |
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