基于動態(tài)規(guī)劃的混合動力汽車能量管理策略研究

孔澤慧　熊繼芬

摘 要：能量管理策略通過優(yōu)化發(fā)動機(jī)、電機(jī)間的能量分配，達(dá)到減小燃油消耗，提高整車燃油經(jīng)濟(jì)性的目的。本文以串聯(lián)式混合動力車輛作為研究對象，提出了基于動態(tài)規(guī)劃的能量管理策略。首先，建立串聯(lián)式混合動力車輛的數(shù)學(xué)模型，然后，建立動態(tài)規(guī)劃的最優(yōu)控制模型，并通過仿真求解最優(yōu)控制序列。結(jié)果表明，相比于基于規(guī)則的能量管理策略，基于動態(tài)規(guī)劃算法的燃油經(jīng)濟(jì)性提升了13%。

關(guān)鍵詞：混合動力車輛 能量管理策略 動態(tài)規(guī)劃

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