重庆理工大学学报2025，Vol.39Issue(13)：60-66,7.DOI:10.3969/j.issn.1674-8425(z).2025.07.008
线控转向系统的齿条力估算研究
The research on rack force estimation in steer-by-wire systems
摘要
Abstract
In a steer-by-wire(SBW)control system,accurately obtaining rack force information is crucial for enhancing steering performance.However,due to limitations such as space and cost,the current SBW systems are unable to directly measure the rack force.To address the issue,two existing rack force estimation methods(one based on steering system dynamics and the other based on vehicle dynamics)are implemented and compared.Their effectiveness and limitations are analyzed through experiments under various input conditions.By combining the characteristics of these two methods,a fuzzy logic-based data fusion method for the dynamic characteristics of rack force is designed to improve estimation accuracy.Finally,the effectiveness of this method is validated through a series of real-vehicle experiments.关键词
线控转向/齿条力估算/模糊控制/卡尔曼滤波Key words
SBW/rack force estimation/fuzzy control/Kalman filtering分类
交通工程引用本文复制引用
姜坤鹏,纪汝杰,杨友胜..线控转向系统的齿条力估算研究[J].重庆理工大学学报,2025,39(13):60-66,7.基金项目
国家自然科学基金项目(52172370) （52172370）
山东省自然科学基金项目(ZR2018MEE023) （ZR2018MEE023）
山东省重点研发计划项目(2017GGX30106) （2017GGX30106）
