ISG型混合动力汽车能量管理模糊控制的研究

摘要

针对ISG型混合动力汽车的能量分配问题,提出了一种双模糊控制器的结构,分别以油门开度及其变化率和需求转矩与电池SOC作为两个模糊控制器的输入变量,两个控制器输出的加权和为电机目标转矩.样车试验结果表明,与改装前的传统车辆相比,采用双模糊控制器实现能量分配的ISG型混合动力汽车的燃油经济性提高9.5%,并在一定程度上改善了排放性能.%In view of the energy distribution issue in integrated starter/generator type hybrid electric vehicle (ISGHEV), a configuration with dual fuzzy controllers is proposed, in which throttle opening and its changing rate are the inputs of a fuzzy controller, the required torque and battery SOC are that of another controller while the weighted sum of outputs from two controller is the target torque of electric motor. The results of sample vehicle test show that compared with traditional fuel vehicle, the fuel economy of ISGHEV with dual fuzzy controllers for energy distribution is enhanced by 9. 5％ with an emission performance also improved to certain extent.