插电式串联混合动力汽车发动机起停控制策略的优化

Optimization of Control Strategy for Engine Start-stop in a Plug-in Series Hybrid Electric Vehicle

利用AVL-CRUISE软件对某插电式串联混合动力汽车进行整车建模与仿真,并在不同的行驶循环工况和车辆行驶里程下优化发动机的起停控制策略。结果表明:根据不同的行驶循环工况和行驶里程来修正发动机起停时刻的SOC值,可以有效缩短发动机的运行时间,从而降低油耗和能量损失。该方法也可为增程型电动汽车发动机的起动控制提供参考。

The model for a plug-in series hybrid electric vehicle is set up using software AVL CRUISE,and simulations are conducted to optimize the control strategy for engine start-stop with different driving cycles and driving distance.The results show that the correction on SOC value at engine start or stop for different driving cycles and driving distance can effectively shorten running time of engine and hence reduce fuel consumption and energy losses.The scheme can also provide reference for the engine start control of mileage-extending electric vehicles.