摘要
通过采集某款自主品牌电动汽车硬点数据,建立EPS动力学模型,并设计电动助力特性参数输入该模型。利用Adams进行转向性能仿真试验,验证模型的准确性,并对比分析有助力、无助力的不同情况下,方向盘输入力矩值及EPS输出力矩的变化关系。最后,利用实车路试和Adams整车仿真,开展转向盘中间位置操纵稳定性试验,试验结果表明,该车辆EPS系统助力设计合理,且在高速行驶工况下具备良好的操纵稳定性能。
By collecting the hard points data of an independent brand electric vehicle,EPS dynamic model was established and the assistance characteristic parameters of the model were designed.The steering simulation test was carried out by using ADAMS software.The accuracy of the model was verified.Relationship between steering wheel input torque and EPS output torque were compared and analyzed under different conditions with and without assistance.Finally,the real vehicle road test and Adams vehicle simulation were used.The steering wheel middle position handling stability test was carried out.The test results show that the EPS system is reasonably designed and has good handling and stability under high-speed driving conditions.
作者
李琤
李敏
王爱国
程煜
LI Cheng;LI Min;WANG AiGuo;CHENG Yu(College of Automotive and Rail,Anhui College of Mechanical and Electrical Technology,Wuhu 241002,China)
出处
《机械强度》
CAS
CSCD
北大核心
2022年第5期1194-1200,共7页
Journal of Mechanical Strength
基金
安徽省高校优秀人才支持计划项目(重点项目)(gxyqZD2021147)
安徽省自然科学重点研究项目(KJ2020A1104)
高校学科(专业)拔尖人才学术项目(gxbjZD2020106)资助。
关键词
电动助力转向系统
多体动力学
转向助力特性
中间位置
操纵稳定性
Electric power steering system
Multibody dynamics
Steering assist characteristics
On center steering test
Handling stability test