混动双行星排传动系统的能量管理

Energy Management of Hybrid Double Planetary Transmission System

以提高混合动力汽车的燃油经济性为目的,基于中国CHTC-B典型城市工况,文章对一款新型双行星排传动系统做能量管理研究。采用等效杠杆法对传动系统进行特性分析,根据传动系统各工作模式的传动特性采用多种策略相结合的能量管理方式,最后依据研究结果和整车参数在Matlab/Simulink平台上搭建整车仿真模型,对传动系统做燃油经济性测试。仿真结果表明,通过对传动系统的能量分配管理,在满足车辆动力性的状况下,双行星排传动系统能够有效降低车辆的燃油消耗,提高燃油经济性。

For the purpose of improving the fuel economy of hybrid electric vehicles,based on the typical urban operating conditions of China's CHTC-B,a new type of dual planetary transmission system was studied for energy management in this paper.The equivalent lever method is used to analyze the characteristics of the transmission system.According to the transmission characteristics of each working mode of the transmission system,an energy management method combining multiple strategies is adopted.Finally,a vehicle simulation is built on the Matlab/Simulink platform based on the research results and vehicle parameters.Model to test the fuel economy of the transmission system.The simulation results show that through the energy distribution management of the transmission system,the dual planetary transmission system can effectively reduce the fuel consumption of the vehicle and improve the fuel economy under the condition of meeting the vehicle dynamics.