基于行驶工况的纯电动汽车能量消耗实验研究

针对不同行驶工况下纯电动汽车电能量消耗差异较大的问题,以某款纯电动汽车为研究对象,通过纯电动汽车电能量消耗实验,研究了纯电动汽车电能量消耗与其行驶工况和电能量控制方法之间的关系。分析了纯电动汽车在NEDC、Jap1015和FTP75实验工况中的电能量消耗及其控制方法。讨论了行驶工况特征参数和电能量动态控制方法与纯电动汽车电能量消耗之间的作用关系。结果表明:不同行驶工况的整车电能量消耗并不是随着行驶里程增加而增加,其主要影响因素是纯电动汽车电能量动态控制方法;当采用基于单位里程瞬时能耗的电能量动态控制方法对NEDC前部工况的三个加速阶段进行控制时,将使纯电动汽车单位里程平均能耗分别降低9.4%、18.61%、19.19%。

An Experimental Research on Energy Consumption of Pure Electric Vehicle Based on Driving Cycle

Aming at the problem that the energy consumption of pure electric vehicle (PEV) was quite different in different driving cycles, using PEV as a study object. The energy consumption experiment of PEV had been carried out. Then the relationship between electric energy consumption and driving cycles, control methods of electric energy was investigated. The electric energy consumption and control method of electric energy with NEDC Jap1015 FTP75 driving cycle was analyzed, the effect of characteristic parameters of the driving cycles and dynamic control methods of electric energy on the electric energy consumption of PEV was discussed. The results showed that the electric energy consumption of PEV did not increase as the driving distance was added in different driving cycles, the dynamic control method of electric energy was the main effect factor of electric energy consumption. The three accelerate phases of NEDC former part was controlled with dynamic control method based on energy consumption per kilometer, the energy consumption per kilometer could decrease 9.4% 17.71% 19.19% respectively.