【作者】 李凯； 尹海； 高金武；

【Author】 Kai Li;Hai Yin;Jinwu Gao;State Key Laboratory of Automotive Simulation and Control,Jilin University;Department of Control Science and Engineering,Jilin University;

【机构】 吉林大学汽车仿真与控制国家重点实验室； 吉林大学通信工程学院；

【摘要】 低温工况下,快速恢复动力电池性能可有效提高电动汽车的环境适应性和能量利用率。针对增程式电动汽车(REEVs)动力系统热管理系统问题,本文提出一种动力系统耦合热管理策略。首先,设计了一种发动机与动力电池耦合热管理结构;基于热管理结构分析不同工况下的控制规则,并设计了模糊控制器;最后,在AMEsim中搭建了耦合热管理模型,并与MATLAB\simulink进行了联合仿真。仿真结果验证了控制策略在降低发动机与动力电池预热时间和温度稳态误差、提高能量利用率方面的有效性。更多还原

【Abstract】 Under low temperature conditions,the rapid recovery of power battery performance can effectively improve the environmental adaptability and energy utilization of electric vehicles.A coupled thermal management strategy is proposed for the thermal management system problem of range extended electric vehicles(REEVs) power system.First,a coupled thermal management structure of engine and power battery is designed.Based on the coupled thermal management structure,a fuzzy controller is developed under the analysis of control rules for different working conditions.Finally,a coupled thermal management model is built in AMEsim and a Co-simulation between MATLAB\simulink and AMEsim is developed.The simulation results verify the effectiveness of the control strategy in reducing the warm-up time and temperature steady-state error of the engine and the power battery,and improving the energy utilization efficiency.更多还原