搭载机电控制CVT的混合动力汽车驱动工况调速策略  

Driving Shifting Strategy of Hybrid Electric Vehicle Equipped with Electric-Mechanical CVT

作　　者：叶明[1] 彭江[2] 任洪[2] 胡经庆 程越[2] 

机构地区：[1]汽车零部件先进制造技术教育部重点实验室 [2]重庆理工大学车辆工程学院,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2015年第9期13-19,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51275549);重庆市科技攻关计划项目(cstc2012gg-yyjsb6002)

摘　　要：通过分析搭载机电控制CVT的插电式混合动力汽车的特点,确定单轴并联式传动方案。根据整车不同驱动工况下电池的荷电状态以及整车需求功率的要求,综合考虑系统效率,制定不同驱动工况下能量分配策略以及CVT速比策略,从而提出一种机电控制CVT混合动力汽车驱动工况调速策略。通过Matlab/Simulink和ADVISOR建立PHEV整车模型和调速策略,在NEDC工况下进行仿真。仿真结果表明:制定的调速策略使得驱动工况扭矩得到合理分配,进一步提高了电机和发动机的工作效率,最终使得整车在满足动力性的同时油耗得到明显的降低。Analyzing the characteristics of hybrid electric vehicle equipped with electric-mechanical CVT（EMCVT）, the single-axial parallel transmission scheme was confirmed. According to the require- ments of battery state of charge （SOC） and vehicle needed-power running in different driving cycles, comprehensively considering system efficiency, energy distribution strategy and CVT ratio shifting strate- gy can be achieved, and then vehicle ratio shifting strategy of hybrid electric vehicle equipped with EM-CVT was carried out. The whole vehicle model and shifting strategy were built up in Matlab/Simulink and CRUISE platform and simulating in NEDC driving cycles. The results show that this shifting strate- gy improves motor and engine efficiency, and in this strategy, torque has been well distributed, which makes the vehicle have good power performance and obviously lower fuel consumption.

关 键 词：机电控制CVT 混合动力汽车 调速策略 

分 类 号：U469[机械工程—车辆工程]