论文部分内容阅读
本文提出了一种基于锂离子电池电化学模型的电动公交车续驶里程预测方法,并以某款锂离子电池电动公交车为例,预测了该车在美国UDDS、欧洲EUDC和日本1015行驶工况下的续驶里程,同时还分析了电池组温度和电池模块数量对车辆行驶一定路程所必需的最低荷电状态SOCL的影响。结果表明:随着电池组温度的降低,车辆在上述工况下所需的SOCL值均逐渐增大,并且在低温下增大的幅度更为明显;随着电池模块数量的增加,车辆所需的SOCL值会逐渐减小,并且在低温下减小的幅度相对更大。因此,在制定和调整电动公交车的运输计划时,可参考本文提出的方法对电动公交车的续驶里程进行预测;在电动公交车动力电池组温度或电池模块数量发生变化时,也可采用本文提出的方法为车辆所需SOCL值的调整提供技术依据。
This paper presents a lithium ion battery electrochemical model based on the electric bus driving range prediction method, and to a lithium-ion battery electric bus as an example, predicted the car in the United States UDDS, Europe EUDC and Japan 1015 Driving range, while also analyzing the battery temperature and the number of battery modules on the vehicle driving a certain distance necessary for the impact of the state of charge SOCL. The results show that as the battery temperature decreases, the required SOCL of the vehicle increases gradually under the above conditions and increases more obviously at low temperature. As the number of battery modules increases, The SOCL value will gradually decrease, and the decrease will be relatively larger at low temperature. Therefore, when formulating and adjusting the transportation plan of the electric bus, the driving range of the electric bus may be predicted by referring to the method presented in this article. When the temperature of the electric bus or the number of the battery modules is changed, The method proposed in this paper provides the technical basis for the adjustment of SOCL required by vehicles.