基于极小值原理的插电式四驱混合动力汽车能量管理策略  

The plug-in 4WD hybrid vehicle’s control strategy based on pontryagin’s minimum principle

作　　者：蔡杨 王正武[1] 曾育平[2] 刘永刚[3] CAI Yang;WANG Zhengwu;ZENG Yuping;LIU Yonggang(School of Traffic&Transportation Engineering,Changsha University of Science&Technology,Changsha 410114,P.R.China;Jiangxi Province Key Laboratory of Precision Drive&Control,Nanchang Institute of Technology,Nanchang 330099,P.R.China;The State Key Laboratory of Mechanical Transmissions,Chongqing University,Chongqing 400044,P.R.China)

机构地区：[1]长沙理工大学交通运输工程学院,长沙410114 [2]南昌工程学院江西省精密驱动与控制重点实验室,南昌330099 [3]重庆大学机械传动国家重点实验室,重庆400044

出　　处：《重庆大学学报》2022年第8期55-65,共11页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(51678075);湖南省科技厅重大专项项目(2019SK2171);“智能道路与车路协同”湖南省重点实验室项目(2017TP1016)。

摘　　要：建立以电池SOC为状态变量,以后驱电机和ISG(integrated starter and generator)电机输出转矩为控制变量,以整车燃油消耗最小为目标的能量管理优化模型,然后基于极小值原理设计上述优化问题的求解流程,从而获得基于极小值原理的插电式四驱混合动力汽车能量管理控制策略,最后在建立整车系统仿真模型的基础上对该能量管理控制策略进行仿真,并将仿真结果与基于CD-CS模式规则控制策略的仿真结果进行对比。结果表明,提出的控制策略具有良好的燃油经济性,与CD-CS模式规则控制策略相比,提出的控制策略使整车百公里油耗降低了28.18%。An energy management optimization model was established, which took state of charge(SOC) as the state variable, rear drive motor and integrated starter and generator(ISG) motor torque as the control variables, and the minimum fuel consumption of the vehicle as the goal. Then, the solution flow of the above optimization problems was designed based on pontryagin’s minimum principle. Finally, based on the simulation model of the whole vehicle system, the energy management control was simulated. The simulation results were compared with the simulation results of the charge depleting(CD) and charge sustaining(CS) mode rule control strategy. The results show that compared with the CD-CS mode rule control strategy, the proposed energy control strategy reduces the fuel consumption by 28.18% per 100 km, showing efficient fuel saving potential.

关 键 词：插电式混合动力汽车 能量管理 极小值原理 控制策略 

分 类 号：U469.72[机械工程—车辆工程]