摘要
针对一款新设计的基于金属带式无级自动变速器(CVT)的插电式混合动力轿车(PHEV)的特点,依照整车不同电量状态和功率需求,提出了一种多阶段多目标的能量管理策略。控制电机输出扭矩,以调整发动机工作点;控制CVT比,以优化电机工作点。在Matlab/Simulink平台下,用前向仿真方法,搭建整车模型;在新欧洲行驶循环(NEDC)工况下,进行仿真。结果表明:在不同工况下,该能量管理策略,满足了整车的控制需求,合理地分配了电机扭矩和发动机扭矩;等效油耗为4.26 L/(100km),比常规汽油车节能46.1%。因而,验证了该能量管理策略的有效性。
A multi-stage and multi-objective energy management strategy was proposed based on metal V-belt continuously variable transmission （CVT） in the light of the characteristics of a new designed plug-in hybrid electric vehicle （PHEV） according to the different states of charge and required power. Adjustment of an engine＇s working point was made by controlling the motor＇s output torque; And optimization of a motor＇s working point was promoted by controlling CVT ratio. A PHEV model was established by using forward-facing simulation on a Matlab/Simulink platform, and the simulations were conducted under NEDC （New European Drive Cycle） conditions. The results show that under different conditions, the energy management strategy satisfies the PHEV control requirements; and distributes reasonably the motor torque and the internal combustion engine torque; The equivalent fuel consumption of 4.26 L/（100 km） for the new strategy is 46.1% lower than that for the conventional internal combustion engine vehicle. Therefore, the availability is checked for the energy management strategy.
出处
《汽车安全与节能学报》
CAS
CSCD
2014年第2期185-191,共7页
Journal of Automotive Safety and Energy
基金
国家"八六三"高技术研究发展计划(2012AA111710)
关键词
插电式混合动力汽车(PHEV)
能量管理策略
仿真分析
无级自动变速器
模式切换
plug-in hybrid electric vehicle （PHEV）
continuously variable transmission （CVT）
energy management strategies
mode switching
simulation analysis
