Hybrid electric vehicles have multiple energy sources,and the car controller needs to coordinate and choose different energy to drive under different working conditions.Hybrid electric vehicles have both series mode and parallel mode drive,and different drive modes have different energy consumption,so how to improve the energy transfer efficiency has always been the key to multi-energy power system.Firstly,this paper studies the speed ratio relationship between various components of hybrid electric vehicle,and draws the conclusion that optimizing the speed ratio can improve the transmission efficiency between various components.On this basis,the transmission efficiency of each drive mode is calculated and the balance curve is obtained,so as to optimize the timing of series-parallel mode switching and improve the economy of the vehicle.
关键词
能量源/能量传递效率/串并联/模式切换时机
Key words
Energy Source/Energy Ttransfer Efficiency/Series Parallel/Mode Switching Timing
维普
万方数据