插电式混合动力客车能量管理最优控制实验研究

Experimental study on optimal control of energy management for plug-in hybrid electric bus

为研究混合动力客车动力电池容量衰减、使用寿命缩短的问题,在插电式混合动力客车整车动力系统结构基础上,选取混合度作为性能表征参数,提出一种基于整车工况识别的动态规划能量管理策略。以插电式混合动力客车为实验对象,对能量管理策略适用性进行实验验证。实验结果表明:基于整车工况识别的动态规划能量管理策略能够有效地减缓动力电池容量衰减,提高汽车续驶里程。

In view of the problems about the power battery capacity attenuation and service life shortening of the hybrid electric bus,a dynamic programming energy management strategy based on vehicle condition identification is proposed by choosing the hybrid degree as performance characterization parameter on the basis of power system structure of the plug-in hybrid electric bus.The applicability of the energy management strategy is verified by experiments on gas-electric hybrid bus.The experimental results show that the dynamic programming energy management strategy based on vehicle condition identification can effectively slow down the power battery capacity attenuation and improve vehicle driving mileage.