【摘要】 以提高混合动力城市客车燃油经济性为目标,解决换挡过程中的动力中断问题,提出了一种带有副箱的新型混合动力系统。对原有车型重新进行电机、发动机等关键部件的参数匹配,介绍了混合动力变速装置具体的换挡过程。在Matlab/Simulink环境下,对电动汽车仿真软件ADVISOR进行二次开发,构建并联式混合动力城市客车整车模型,并与原型客车进行仿真对比分析;采用AMEsim软件对新型混合动力系统建模,进行换挡品质仿真分析。仿真结果表明,提出的新型混合动力变速系统在C-WTVC和UDDS工况下燃油消耗率降低均超过18%,动力性符合设计要求,换挡过程较为平顺,冲击度较小,并且实现了无动力中断换挡。更多还原

【Abstract】 In order to improve the fuel economy of hybrid buses and solve the problem of power interruption during shifting, a new hybrid transmission with an auxiliary gearbox is proposed. The parameters of the key components such as the motor and the engine are re-matched to the original bus, and the specific shifting process of the hybrid transmission is introduced. In the Matlab/Simulink software, the electric vehicle simulation software ADVISOR is redeveloped, the parallel hybrid bus model is built, and compared with the original bus by simulation analysis. By susing the AMEsim software, the new hybrid system is modeled, simulation analysis of shift quality is carried out. The simulation results show that, the fuel consumption rate of the proposed new hybrid variable speed system is reduced by more than 18% under the working conditions of C-WTVC and UDDS.The power performance meets the design requirements, the gear shifting process is relatively smooth, impact is small. And the shift without power interruption is realized.更多还原