基于动态规划的混合动力汽车能量管理策略研究

孔泽慧　熊继芬

摘 要：能量管理策略通過优化发动机、电机间的能量分配，达到减小燃油消耗，提高整车燃油经济性的目的。本文以串联式混合动力车辆作为研究对象，提出了基于动态规划的能量管理策略。首先，建立串联式混合动力车辆的数学模型，然后，建立动态规划的最优控制模型，并通过仿真求解最优控制序列。结果表明，相比于基于规则的能量管理策略，基于动态规划算法的燃油经济性提升了13%。

关键词：混合动力车辆 能量管理策略 动态规划

Research on Energy Management Strategy of Hybrid Electric Vehicle Based on Dynamic Programming

Kong Zehui，Xiong Jifen

Abstract：The energy management strategy achieves the goal of reducing fuel consumption and improving vehicle fuel economy by optimizing the energy distribution between the engine and the motor. This paper takes the series hybrid electric vehicle as the research object and proposes an energy management strategy based on dynamic programming. First， the article establishes the mathematical model of the series hybrid electric vehicle， and then establishes the optimal control model of dynamic programming， and solves the optimal control sequence through simulation. The results show that compared with the rule-based energy management strategy， the fuel economy based on the dynamic programming algorithm is improved by 13%.

Key words：hybrid electric vehicle， energy management strategy， dynamic programming