纯电动商用车集成驱动桥质量对操纵稳定性影响规律的研究  

Research on the Impact of Integrated Electric Transaxle Quality on the Handling Stability of Pure Electric Commercial Vehicle

作　　者：徐邓辉 杨朝会 扈建龙 刘本友 张铁柱[1] 张洪信[1] XU Denghui;YANG Chaohui;HU Jianlong;LIU Benyou;ZHANG Tiezhu;ZHANG Hongxin(College of Mechanical and Electrical Engineering,Qingdao University,Qingdao 266071,China;Qingte Group Limited,Qingdao 266041,China)

机构地区：[1]青岛大学机电工程学院,山东青岛266071 [2]青岛青特集团有限公司,山东青岛266041

出　　处：《青岛大学学报（工程技术版）》2024年第2期53-59,共7页Journal of Qingdao University(Engineering & Technology Edition)

基　　金：国家自然科学基金资助项目(52075278);新能源商用车动力总成关键技术研发与应用示范(22-3-2qljh-11-gx)。

摘　　要：为研究集成式电驱动桥纯电动商用车的操纵稳定性,利用Adams/Car建立了车企某集成式电驱动桥纯电商用车整车模型,采用国标试验方法与评价指标分别进行了蛇形试验、方向盘角阶跃试验和方向盘角脉冲试验的仿真实验,分析了方向盘输入曲线和横摆角速度变化曲线及非簧载质量对整车操纵稳定性的影响规律。研究结果表明,汽车侧向加速度峰值、横摆角速度峰值随着电动集成驱动装置质量的增加而增大,簧下质量每增加100 kg,蛇形试验工况下的最终得分降低0.915%,方向盘角阶跃试验最终得分降低0.32%,获得了非簧载质量对操纵稳定性影响的具体规律。In order to investigate the handling stability of an integrated electric transaxle in a pure electric commercial vehicle,a model was established using Adams/Car for a car company′s integrated electric transaxle.National standard test methods and evaluation indicators were used to conduct simulation experiments including snake shapes,steering wheel angle jump tests,and steering wheel pulse tests.The analysis focused on the impact of steering wheel input curve,yaw velocity curve,and unsprung mass on vehicle handling stability.The results indicated that the peak lateral acceleration and yaw velocity of the vehicle increased with the mass of the electric integrated drive device.Specifically,an increase of 100 kg in unsprung mass led to 0.915%decrease in the final score of the steering wheel angle step test and 0.32%decrease in the final score of the steering wheel angle step test.This study identified the specific impact of unsprung mass on handling stability.

关 键 词：纯电动商用车 集成式电驱动桥 操纵稳定性 横摆角速度 非簧载质量 

分 类 号：U461.6[机械工程—车辆工程]