液压混合动力汽车燃油经济性最优控制策略  

Optimum Control Strategy for Fuel Economy of Hydraulic Hybrid Vehicle

作　　者：李训明[1] 曲金玉[1] 刘林 魏伟[1] 田香玉 

机构地区：[1]山东理工大学交通与车辆工程学院,山东淄博255049 [2]潍柴动力股份有限公司新能源中心,山东潍坊261000

出　　处：《河南科技大学学报（自然科学版）》2014年第5期24-28,108,共5页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(51275280);山东省科技发展计划基金项目(2011GGX10505)

摘　　要：以降低液压混合动力汽车整车油耗为目标,采用最优控制理论,建立了燃油经济性Hamilton目标函数。依据庞特里亚金极小值原理,通过求解Hamilton函数得出了最优控制策略,基于Matlab/Simulink平台建立了整车仿真模型,对最优控制策略进行了仿真验证,并与规则控制策略进行了比较。研究结果表明:最优控制策略可使整车燃油经济性提高26.19%。In order to minimize the fuel consumption of hydraulic hybrid vehicle,Hamilton fuel economy target function was established by using optimal control theory. Based on Pontryagin minimum principle,the optimal control strategy was obtained by solving the Hamilton function. Dynamic model of the vehicle was established on the platform of Matlab /Simulink to validate the optimum control strategy,and the optimum control strategy was compared with rules control strategy. The results show that optimum control strategy can improve the vehicle fuel economy by 26. 19%.

关 键 词：液压混合动力车辆 燃油经济性 最优控制 建模仿真 

分 类 号：U469.13[机械工程—车辆工程]