功率分流混合动力车辆模糊控制策略设计与仿真  

Study and optimization on fuzzy control strategy for power distributing HEV

作　　者：韩立金[1] 李宏才[1] 韩全福 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]内蒙古第一机械(集团)科研所,包头014030

出　　处：《机械设计与制造》2011年第7期4-6,共3页Machinery Design & Manufacture

基　　金：车辆传动国家重点实验室基金项目(9140C3402010902)

摘　　要：将功率分流混合动力方案应用于某重型大功率特种轮式车辆,针对这种基于行星排功率分流混合动力系统结构复杂,控制难度高的特点,研究了其控制系统的组成和结构,提出了整车控制系统分层控制结构。对车辆模式切换以及功率分配规律进行了分析,并采用模糊逻辑控制方法解决了发动机功率与动力电池组功率优化分配的问题,设计了模糊控制器,建立了模糊规则,并进行了循环工况仿真,仿真结果表明所述模糊控制策略能够使发动机控制在优化工作区间,并使整车燃油经济性得到改善,取得了良好的控制效果。Through applying power distributing hybrid drive strategy in a heavy-duty power special wheeled vehicle,the composition and structure of its control system are studied specific to the complex system structure and control system with high difficulty,then a hierarchical control structure for vehicle control system is put forward.Afterwards,analysis concerning on vehicle mode switch and power distribution rule is carried out,based on which the power of engines and power battery optimal distribution are solved by adopting fuzzy logic control method.Meanwhile a fuzzy controller is designed and fuzzy rules are established to simulate the cycling condition,which results show that the fuzzy control strategy can make engine control within optimizing area,and vehicle fuel economy is improved with better control effect.

关 键 词：功率分流 混合动力 模糊控制策略 

分 类 号：TH12[机械工程—机械设计及理论] U273[机械工程—车辆工程]