一种轻型油电混合动力汽车的动力系统初探

Preliminary Study on the Dynamical Propulsion System of the Light Hybrid Electric Vehicle

为了降低油电混合动力汽车(HEV)成本,增进其节能性能,提出了一种轻型油电混合动力汽车(LHEV)的概念.以美国城市道路循环工况(UDDS)作为LHEV的循环工况,结合并联式混合动力汽车的结构特点、控制策略,建立LHEV数学模型,最终给出了LHEV的动力匹配结果及相关性能数据.仿真分析结果表明,与HEV相比,LHEV在节能和制造成本上具有明显的优势.

In order to reduce the cost of traditional hybrid electric vehicle （HEV） and improve its capability of energy saving and emission reduction, a new concept of light hybrid electric vehicle （LHEV） is presented. Urban dynamometer driving schedule （UDDS） was selected as the operation mode cycle for LHEV. Based on the UDDS, a research on structural characteristics and control strategies of parallel hybrid electric vehicle was conducted to establish the mathematical model of LHEV. Finally, a power match pattern and the relevant data of performance were presented. The result demonstrates that LHEV has a remarkable advantage compared with HEV on the production cost and energy saving.