基于不同行驶工况的纯电动汽车电能量消耗影响因素研究

Research on Influencing Factors of Electric Energy Consumption of Pure Electric Vehicle Based on Different Driving Conditions

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,从理论上分析了纯电动汽车电能量消耗与行驶特征参数之间的关系,并以某款纯电动汽车为研究对象,选取NEDC,Jap1015和FTP75典型城市工况进行了基于行驶工况的纯电动汽车电能量消耗实验,分析了加速、匀速和减速工况对纯电动汽车电能量消耗的影响,验证不同行驶工况下纯电动汽车电能量消耗与行驶特征参数的关系。研究结果表明,加速过程是纯电动汽车电能量消耗最大的过程,该过程消耗的电能量占总电能量消耗的60%以上,且其单位里程能耗随着行驶过程中平均加速度增大而增大。

Aiming at the problem that there is large difference in the energy consumption of pure electric vehicles under different driving conditions,this paper analyzes theoretically the relationship between the energy consumption and the driving characteristic parameters of the pure electric vehicle.In the research,an electric energy consumption experiment of pure electric vehicle was conducted on typical urban driving conditions like NEDC,Jap1015,and FTP75.Then,the influence of acceleration,constant speed as well as deceleration on the consumption of pure electric vehicle was analyzed to verify the relationship between the energy consumption and the driving characteristic parameters of pure electric vehicle under different driving conditions.The results show that the energy consumption reaches the maximum in the accelerating process.It takes up 60%of the total energy consumption,and its unit mileage energy consumption increases with the average acceleration during driving.