中文摘要：

利用AVL／Cruise仿真软件建立了复合电源混合动力汽车模型，针对复合电源与单一电池性能的差异，基于模糊控制的思想，在MATLAB／Simulink下设计了整车功率分配策略与电池、超级电容SOC平衡策略，提出了基于车速的超级电容期望SOC平衡方法。通过仿真，验证了控制策略，达到了预期的控制效果。与采用逻辑门限的控制策略相比，电池的使用率降低了85．6％，燃油经济性提升了2％，可在不影响经济性的前提下延长复合电源中的电池寿命。

英文摘要：

A model for hybrid electric bus with compound electric powers is built by using AVL/Cruise software. In view of the performance difference between compound electric powers and battery alone and based on fuzzy control logic, the strategies of power allocation and SOC balance of battery and ultra-capacitor are devised with MATLAB/Simulink and an expected SOC balance scheme for ultra-capacitor based on vehicle speed is proposed, The results of simulation verify that the control strategy achieves the expected effects. Compared with logic threshold control strategy, the utilization rate of battery reduces by 85.6% and the fuel economy rises by 2%, meaning that the service life of battery in compound electric powers is extended while the fuel economy remains unaffected.