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%.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
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)
关键词
液压混合动力车辆
燃油经济性
最优控制
建模仿真
hydraulic hybrid vehicle
fuel economy
optimum control
modeling and simulation
