纯电动汽车复合电源再生制动控制策略研究

摘要

Aiming at the problem that the dynamic properties and driving range of blade electric vehicle is poor,the hybrid power supply and regenerative braking system are studied by proposing the method of the combination of the hybrid power supply and regenerative braking system.The new model of hybrid power supply and regenerative braking is established by considering about the influence of vehicle speed and the required braking force of hybrid power system.The fuzzy logic control strategy is used to control the hybrid power supply and regenerative braking system.The results show that the SOC of battery rises by around 15.8％,the regenerative braking efficiency rises by around 37.4％ and the overall system efficiency rises by around 16.9％,which indicate that the fuzzy logic control strategy is used to control the hybrid power supply and regenerative braking system can enhance the dynamic properties and driving range of blade electric vehicle.%针对纯电动汽车动力性能差和续驶里程短的问题,对复合电源和再生制动系统进行了研究,提出了纯电动汽车复合电源再生制动方法.基于以往复合电源模型,考虑到车辆速度和所需的制动力对复合电源系统的影响,建立了新型复合电源再生制动模型,并应用模糊逻辑控制策略对复合电源再生制动系统进行调控.实验结果表明,蓄电池的剩余容量(State of Charge,SOC)提升15.8％,再生制动效率提升37.4％,整个系统的效率提升16.9％,采用此控制策略的复合电源再生制动系统可以提高纯电动汽车的动力性能和续驶里程.