串联式混合动力电动汽车经济性研究

Economic Performance of Series Hybrid Electric Vehicles

结合城市公交车的运行工况,对传统内燃机式车辆、串联式混合动力电动汽车的匹配和经济性进行了研究分析。研究表明:串联式混合动力电动车能够将功率匹配与能量匹配分开进行,综合了发动机比能量高与蓄电池比功率高的优势;并且通过优化匹配,采用合理的控制策略,以及制动能量回收等一系列措施,可以避开其能量转化过程多、损失大的劣势,使整车的经济性能有较大的提高。

According to the driving conditions of buses in cities, the matching and economic performance of traditional combustion engine vehicles and Series Hybrid Electric Vehicles (SHEV) are studied. It is claimed that SHEV can operate power matching and energy matching separately and integrate the advantages of high energy density of engines with high power density of batteries. The economic performance of SHEV is greatly improved, and frequent conversion of energies and great loss of energies are avoided by optimizing matching, adopting reasonable control strategies and recovering energy.