基于双模糊控制的48V轻混动力汽车控制策略研究  

Research on Control Strategy of 48V Light Hybrid Electric Vehicle Based on Dual Fuzzy Control

作　　者：程吉鹏 陈丁跃[2] 雷嘉豪 苟琦智 CHENG Jipeng;CHEN Dingyue;LEI Jiahao;GOU Qizhi(School of Automobile,Shaanxi Polytechnic Institute,Xianyang,Shaanxi,712000,China;Chang'an University)

机构地区：[1]陕西工业职业技术学院汽车工程学院,陕西咸阳712000 [2]长安大学

出　　处：《小型内燃机与车辆技术》2022年第1期64-69,共6页Small Internal Combustion Engine and Vehicle Technique

基　　金：陕西工业职业技术学院项目:基于双模糊控制的48V轻混动力汽车动力性研究(2020YKYB-022)。

摘　　要：在传统汽车发动机的基础上设计了P2双离合结构48 V轻混动力系统,以提高燃油经济性和降低排放为目的,制定了以SOC、需求转矩、车速以及制动强度为输入,电机转矩分配系数、再生制动比例系数为输出的双模糊控制策略。在AVL-CRUISE中搭建了48 V轻混动力汽车模型,与MATLAB联合,在NEDC工况下进行仿真,与传统汽车进行对比分析。结果显示:对所设计的48 V轻混动力系统制定驱动和制动双模糊控制策略,不但满足动力需求,且在燃油经济性和排放性能上有很大改善。Based on the traditional automobile engine,a P2 dual clutch structure 48V light hybrid power system is designed.In order to improve fuel economy and reduce emissions,a dual fuzzy control strategy is formulated with SOC,demand torque,vehicle speed and braking intensity as inputs and motor torque distribution coefficient and regenerative braking proportion coefficient as outputs.A 48V light hybrid vehicle model is built in AVL-CRUISE.Combined with MATLAB,it is simulated under NEDC working condition and compared with traditional vehicles.The results show that the dual fuzzy control strategy of driving and braking for the designed 48V light hybrid power system can not only meet the power demand,but also greatly improve the fuel economy and emission performance.

关 键 词：48 V轻混动力系统 工作模式分析 双模糊控制 联合仿真 

分 类 号：U469.72[机械工程—车辆工程]