摘要
采用多体系统动力学(MBD)与计算机辅助控制系统设计(CACSD)相结合的方法,分析电动助力转向(EPS)系统对汽车操纵稳定性的影响.在多体系统动力学(以MSC.ADAMS软件为支撑)基础上建立包括转向系统、前后悬架系统和前后轮胎的整车动力学模型,作为考察EPS系统对整车性能影响的外部环境;在CACSD(以Matlab/Simulink软件为支撑)基础上建立EPS系统控制模型,研究其助力特性和控制策略.经试验验证,联合仿真模型相对误差在6%以内,准确地反映了整车的实际情况.
The effect of electric power steering （EPS） system to vehicle handling performance was analyzed by combination of multi-body system dynamics （MBD） method with computer aided control system design （CACSD） method. A detailed multi-body system dynamics model for the full vehicle was established on MSC. ADAMS software, including the steering system, front and rear suspension system, and the tire system. In this dynamics environment, the EPS control system model is established on Matlab/Simulink software. This co-simulation model is verified by test data, and the relative error is below 6%, which is precise enough for the engineering application.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第9期83-85,97,共4页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(60674067)
清华大学汽车安全与节能国家重点实验室开放基金资助项目(KF2006-02)
关键词
电动助力转向系统
汽车操纵稳定性
计算机辅助控制系统设计
控制策略
联合仿真
electric power steering system
vehicle handling performance
computer-aided control sys-tem design
control strategy
co-simulation
