面向能量管理策略开发的混合动力汽车仿真模型
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摘要
以经验建模为主、理论建模为辅的建模方法建立了混合动力系统动力部件模型,搭建了实车用基于逻辑门限的能量管理策略,基于MATLAB/Simulink仿真平台搭建了混合动力汽车仿真模型,通过实车试验对仿真模型进行了验证。在此基础上,采用了遗传算法对逻辑门限参数进行了优化,在NEDC工况下车辆的燃油经济性可提高5.88%。所开发的混合动力汽车仿真模型可反映实车的能耗特性,可用于能量管理策略的开发与优化,提高混合动力汽车的开发效率。
In this paper,the power component models of hybrid electric powertrain are established by empirical modeling and theoretical modeling. The energy management strategy based on logic threshold is built.The hybrid electric vehicle simulation model is built based on MATLAB/Simulink. The simulation model was verified by real vehicle test. On this basis,the genetic algorithm is used to optimize the logic threshold parameters,and the fuel economy of the vehicle can be improved by 5.88% in NEDC. The developed hybrid electric vehicle simulation model can reflect the energy consumption characteristics of the real vehicle,and can be utilized for the development and optimization of the energy management strategy,which can improve the development efficiency of the hybrid electric vehicle.
In this paper,the power component models of hybrid electric powertrain are established by empirical modeling and theoretical modeling. The energy management strategy based on logic threshold is built.The hybrid electric vehicle simulation model is built based on MATLAB/Simulink. The simulation model was verified by real vehicle test. On this basis,the genetic algorithm is used to optimize the logic threshold parameters,and the fuel economy of the vehicle can be improved by 5.88% in NEDC. The developed hybrid electric vehicle simulation model can reflect the energy consumption characteristics of the real vehicle,and can be utilized for the development and optimization of the energy management strategy,which can improve the development efficiency of the hybrid electric vehicle.
引文
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[8]雷英杰,张善文,李续武,等.遗传算法工具箱及其应用[M].2版.西安:西安电子科技大学出版社,2015.
[2]林歆悠,孙冬野,邓涛.基于极小值原理的混联混合动力客车能量管理策略优化[J].汽车工程,2012,34(10):865-870.
[3]王庆年,刘志茹,王伟华,等.混合动力汽车正向建模与仿真[J].汽车工程,2005,27(4):392-394.
[4]陈全世,林成涛.电动汽车用电池性能模型研究综述[J].汽车技术,2005,1:1-5.
[5]NEWMAN,BERNARDI,PAWLIKOWSKI.A general energy-balance for battery systems[J].Journal of the Electrochemical Society,1985,132(1):5-12.
[6]余志生.汽车理论[M].北京:机械工业出版社,2009.
[7]SHEN P,ZHAO Z,ZHAN X,et al.Optimal energy management strategy for a plug-in hybrid electric commercial vehicle based on velocity prediction[J].Energy(155):838-852.
[8]雷英杰,张善文,李续武,等.遗传算法工具箱及其应用[M].2版.西安:西安电子科技大学出版社,2015.