摘要
为了提高同轴并联式混合动力汽车的燃油经济性,针对同轴并联式混合动力系统的结构特征、工作过程及能量流动模式,以驾驶意图作为模糊设计的输入变量,对驾驶意图进行模糊识别。在Matlab/Simulink中建立基于驾驶意图识别的模糊控制转矩分配策略,并在NEDC循环工况下与Cruise进行联合仿真。结果表明,该控制策略在满足动力性的前提下,同基于逻辑门限值的转矩分配控制策略相比,能有效改善发动机的工作点,百公里综合油耗下降了3.2%,进一步提高了整车燃油经济性。
In order to improve the fuel economy of coaxial parallel hybrid electric vehicle,the driver inten tion is used as the input variable of the fuzzy design to realize the fuzzy recognition of the driver intention,with considering the structural characteristics,working process and energy flow mode of coaxial parallel hybrid sys tem.Fuzzy control torque distribution strategy based on recognition of driving intention is established in Matlab/Simulink,and joint simulation is performed with Cruise under NEDC cycle condition.The results show that,un der the premise of satisfying the dynamic performance,compared with the logic threshold based on torque distri bution control strategy,the proposed control strategy can effectively improve the working point of the engine,and can reduce the comprehensive fuel consumption of 100 kilometers about 3.2%,which satisfies the vehicle dy namics,and further improves the fuel economy.
作者
高龙飞
张瑞亮
陈联春
Gao Longfei;Zhang Ruiliang;Chen Lianchun(College of Mechanical Engineering,Taiyuan University of Technology,Taiyuan 030024,China;AVIC Meiyun Lantian Equipment Manufacture Co.,Ltd.,Jinzhong 030600,China)
出处
《机械传动》
北大核心
2019年第12期18-21,27,共5页
Journal of Mechanical Transmission
基金
山西省重点研发计划重点项目(201603D111006)
