摘要
基于某电动皮卡整车性能需求,计算匹配动力系统关键零部件的性能参数,利用Cruise M软件搭建仿真模型并进行模型验证,输入仿真工况对基础传动系统模型计算,得到该模型在中国轻型商用车测试循环(China light-duty vehicle test cycle-commercial,CLTC-C)工况的耗电量、0~100 km/h的加速时间和最大爬坡度;在兼顾经济性和动力性的前提下,研究传动比对整车性能的影响规律,提出2种驱动电机优化方案,在传动比为11.8时对比驱动电机优化前后车辆的性能。结果表明:基础方案下,CLTC-C工况的耗电量为3.286 kW·h,0~100 km/h的加速时间为13.33 s,最大爬坡度为33.5%,无法满足整车性能指标要求;随着传动比增加,整车动力性能改善,但经济性能降低;传动比为11.8时,与基础方案相比,方案一的电机峰值效率提高了1.15%,峰值转矩提高了60 N·m,峰值功率提高了20 kW,方案一车辆的动力性能得到提高且满足指标要求,经济性能得到提高但仍然无法满足指标要求;方案二的电机峰值效率提高了0.2%,峰值转矩提高了15 N·m,峰值功率提高了21 kW,方案二的动力性能和经济性能均得到提高且满足指标要求。
Based on the performance requirements of a certain electric pickup,the performance parameters of key components of the matching powertrain is calculated,simulation models are built by Cruise M software and validated.By inputting the simulation conditions to calculate the basic transmission system model,the power consumption,0-100 km/h acceleration time,and maximum climbing slope of the model in the China light vehicle test cycle(CLTC-C)condition are obtained.For balancing economy and power,the influence of the transmission on the performance of the complete vehicle is evaluated,and two schemes for optimizing the drive motors are promoted,and the performance of the vehicle before and after optimizing the drive motor at a transmission ratio of 11.8 is compared.The results show that the base scenario uses 3.286 kW·h of power,with acceleration times of 13.33 s from 0 to 100 km/h and a maximum gradient of 33.5%,which does not reach the overall vehicle performance.As the ratio increases,overall vehicle power performance is improved,but economic performance is reduced.With a transmission ratio of 11.8,for scheme 1,the motor peak efficiency is 1.15%higher and the peak torque is 60 N·m higher than the underlying scenario,the peak power increases 20 kW,the power performance of the option one improves and meets the economic requirement but still does not meet the others.For scheme 2,the motor peak efficiency improves by 0.20%,peak torque increases 15 N·m,and peak power increases 21 kW which has improved power and economic performance and meets the specifications.
作者
赵强
孙楠楠
王晓艳
贾德民
王聪
韩凯
ZHAO Qiang;SUN Nannan;WANG Xiaoyan;JIA Demin;WANG Cong;HAN Kai(National Key Laboratory of Internal Combustion Engines and Power System,Weifang 261061,China;Weichai Power Co.,Ltd.,Weifang 261061,China)
出处
《内燃机与动力装置》
2024年第2期19-27,共9页
Internal Combustion Engine & Powerplant
关键词
电动皮卡
动力性
经济性
传动比
驱动电机
electric pickup truck
power performance
economy performance
transmission ratio
drive motor
