关键词: 逆向差速器, 混合车辆动力系统, 键合图, 建模, 仿真

Abstract: In this paper, the hybrid system is studied based on an inverse differential gear power coupling mechanism, which combines the motor’s good performance at the low speed and low noise with the engine’s good performance at high-speed and energy supply chain integrity.According to power and speed demanded under different driving conditions, energy management modes of the hybrid system are planned.Hybrid cooperation power output mode is focused in this paper.The vehicle dynamics model of hybrid cooperation mode is built by power bond graph theory and its dynamic equations are derived.Then Matab is applied for programming and simulation.The simulation results show that the hybrid power system with an inverse differential gear power coupling mechanism is able to meet the need of the rear wheel output power and enhances the vehicle dynamic and reduces fuel consumption and pollution emissions, by- DOI:10.3969/j.issn.1000-1565.2017.04.014基于键合图的混合动力汽车建模与仿真王涛¹,王凯²,林秋丰³,庄宗宪³,李志远¹(1.河北大学 质量技术监督学院,河北 保定 071000; 2.河北工程大学 机械与装备工程学院,河北 邯郸 056000; 3.屏东科技大学 车辆工程系,台湾 屏东 000912)摘 要:针对一套应用逆向差速器作为动力耦合机构的混合动力系统进行了研究,该系统结合了电机低速性能佳、低噪音的优点与发动机高速性能佳、能源供应链完整的特点,依据车辆在不同行驶工况下的功率需求以及驾驶员的不同车速需求,规划了混合动力系统的能量管理模式.本文重点分析了混动模式下的运动情形,采用功率键合图方法进行建模并推导其系统动态方程式,应用Matab进行仿真.仿真结果显示:依据BSFC将发动机设置在最佳经济转速内运行,控制HEV各动力组件的动态参数在高效率范围内运行,逆向差速器动力耦合机构满足车辆后轮需求功率,可实现低污染、低能耗的目标;应用功率键合图方法可准确地模拟车辆在NEDC2000行车模式下发动机、电机/发电机的性能变化曲线,该方法在混合动力驱动系统中多能量耦合的动态建模具有一定的优势.关键词:逆向差速器;混合车辆动力系统;键合图;建模;仿真中图分类号:U461 文献标志码:A 文章编号:1000-1565(2017)04-0419-07Model and simulation for hybrid electric vehicle based on bond graphWANG Tao¹, WANG Kai², LIN Chiufeng³, CHUANG Tsunghsien³,LI Zhiyuan¹(1.School of Quality Technology Supervisor, Hebei University, Baoding 071000, China; 2.College ofMechanical and Equipment Engineering, Hebei University of Engineering, Handan 056000, China; 3.Schoolof Engineering, Pingtung University of Science and Technology, Pingtung 000912, China)Abstract: In this paper, the hybrid system is studied based on an inverse differential gear power coupling mechanism, which combines the motor’s good performance at the low speed and low noise with the engine’s good performance at high-speed and energy supply chain integrity.According to power and speed demanded under different driving conditions, energy management modes of the hybrid system are planned.Hybrid cooperation power output mode is focused in this paper.The vehicle dynamics model of hybrid cooperation mode is built by power bond graph theory and its dynamic equations are derived.Then Matab is applied for programming and simulation.The simulation results show that the hybrid power system with an inverse differential gear power coupling mechanism is able to meet the need of the rear wheel output power and enhances the vehicle dynamic and reduces fuel consumption and pollution emissions, by- 收稿日期:2016-05-16 基金项目:河北省科技支撑计划资助项目(13214412);河北省教育厅高等学校青年基金项目(E2011206);河北省人社厅留学人员科技活动重点项目(2012121603);河北大学青年教师基金项目(2010208;2011-42). 第一作者:王涛(1982—),男,山东泰安人,河北大学副教授,博士,主要从事新能源汽车关键技术研究.E-mail: taowangustbntu@sohu.com 通信作者:林秋丰(1964—),男,台湾屏东人,“国立”屏东科技大学教授,博士,主要从事混合动力汽车技术研究.E-mail: chiufeng@mail.npust.edu.tw第4期王涛等:基于键合图的混合动力汽车建模与仿真fixing the engine in the current operating points to continue to run efficiently and controlling the dynamic parameters of the components of the entire hybrid system.Power bond graph method can accurately simulate the change performance curved lines of the vehicle engine and the motor/generator in NEDC2000 driving mode.Therefore, this method has a certain advantages for dynamic modeling of multiple energy coupling of the hybrid drive system.

Key words: inverse differential gearbox, hybrid electric vehicle, bond graph, model, simulation