【摘要】 针对并联式混合动力电动汽车的能量控制问题进行了研究,提出了一种多模式能量管理策略。建立了整车模型,以负载力矩、电池荷电状态(SOC)和车速作为控制依据设计了多个工作模式间的切换逻辑,将模式切换状态作为控制变量引入到力矩分配算法中,实现了多工况下对发动机与电机的优化控制。结合US06、UDDS和EUDC等工况进行了Simulink系统仿真,结果表明所提出的能量管理策略较传统功率跟随策略相比可以提高燃油经济性约1.91%,且对于不同的工况具有良好的普遍适用性;基于D2P系统构建了硬件在环仿真平台,采用真实的驾驶员输入设备和控制器进行实时仿真,进一步表明所提出的能量管理策略合理有效且算法具有良好的实时性。更多还原

【Abstract】 The energy control problem of parallel hybrid electric vehicles was studied and a multi-mode energy management strategy was proposed.The system mode was established firstly,and then the switchover logic among multiple modes was designed according to control bases of load torque,battery SOC and vehicle velocity.The mode switch state was taken as a control variable into the torque distribution algorithm for optimization control of the engine and the electric motor under multi-operating modes.The system simulations were conducted in MATLAB/Simulink circumstance using US06,UDDS and EUDC cycling conditions,and the results show that the presented strategy can improve the fuel economy by about 1.91%compared to the traditional power following strategy and has a universal applicability for different conditions.The hardware in the loop simulation platform using real driver operation devices and controller was built based on a D2P system.The real-time simulation further indicates that the proposed energy management strategy is effective and has the good real-time performance.更多还原