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为提高城市循环工况下客车的燃油经济性,开展了一种新型混联式混合动力客车匹配控制策略研究。根据该混联系统的结构特点,制定了串联与并联模式间的切换条件及控制规则,通过确定电池等效燃油模型,以各时刻下客车燃油消耗率最小为优化目标,对电池和发动机功率进行实时优化控制。研究结果表明:电池荷电状态在预定的区域内保持平衡,发动机运行工作点处于高效区域内,且整车燃油经济性相对原型客车提高了32.41%,与采用规则控制策略相比提高了13.2%。
In order to improve the fuel economy of passenger cars under urban cycling conditions, a new type of hybrid hybrid bus matching control strategy is studied. According to the structural characteristics of the hybrid system, the switching conditions and control rules between series and parallel mode are established. By determining the battery equivalent fuel model, the fuel consumption rate of the bus is minimized at each moment as the optimization target, and the battery and engine power Real-time optimization control. The results show that the state of battery charge balance in a predetermined area, the engine operating point in the high efficiency area, and vehicle fuel economy relative to prototype bus increased by 32.41%, compared with the use of regular control strategy increased by 13.2% .