基于动态规划的混合动力商用车能量管理策略优化  

Dynamic Programming-based Energy Management Strategy Optimization for Hybrid Electric Commercial Vehicle

作　　者：邹渊[1] 侯仕杰[1] 韩尔樑 刘林 陈锐[1] 

机构地区：[1]北京理工大学机械与车辆学院,电动车辆国家工程实验室,北京100081 [2]潍柴动力公司新能源技术研究中心,潍坊261001

出　　处：《汽车工程》2012年第8期663-668,共6页Automotive Engineering

基　　金：国家自然科学基金(50909015);国家科技支撑计划(2011BAG04B00);高等学校学科创新引智项目(B12022)资助

摘　　要：考虑混合动力商用车部件基本的动态特性,在Matlab/Simulink中建立了整车前向仿真细化模型。应用动态规划理论获得整车燃油经济性的最优控制策略,包括能量分配和换挡控制策略。基于动态规划的最优控制策略,抽取出能够应用于实车控制的改进规则作为控制策略。采用重型车辆实际行驶工况的仿真结果表明,基于动态规划优化方法改进的整车控制策略可显著提高燃油经济性。A feed-forward Simulink model for hybrid electric commercial vehicle is established, considering the basic dynamic features of its components. Dynamic programming （DP） theory is adopted to find the optimal control strategies for vehicle fuel economy including the strategy of power split between engine and motor and the shift control strategy. Improved control rules for vehicle control are extracted based on DP optimal control results and implemented as the control strategy. The results of simulation over the heavy-duty vehicle cycle from natural driving statistics demonstrate the potential of improved vehicle control strategy based on DP optimization technique in significantly enhancing fuel economy.

关 键 词：动态规划 混合动力商用车 能量管理 控制策略 优化 

分 类 号：U469.7[机械工程—车辆工程]