重庆理工大学学报（自然科学版）2018，Vol.32Issue(3)：1-9,9.DOI:10.3969/j.issn.1674-8425(z).2018.03.001
电动轮汽车差动助力转向稳定性控制策略
Stability Control Strategy of Differential Assist Steering System Based on Electric Vehicle With In-Wheel Motors
摘要
Abstract
This paper establishes the driver model,the differential steering system and the vehicle electromechanical system coupling dynamics model.Considering the uncertainties of the system,the coupling relationship between the drive torque and yaw moment is analyzed.Taking the ideal yaw rate as the control objective,the stability control strategy of electric vehicle differential steering with fuzzy logic and sliding mode variable structure control is studied.The control law of sliding mode reaching law under different states is determined by fuzzy logic to compensate the uncertainty and nonlinearity of the controlled system.The simulation results show that the designed stability controller can not only effectively solve the chattering problem of sliding mode variable structure control in high frequency,but also guarantee the stability of the system under the interference of different road surface adhesion coefficient,different speed,and lateral wind.关键词
电动轮汽车/差动助力转向/稳定性/滑模变结构控制/模糊逻辑Key words
electric vehicle with in-wheel motors/differential assist steering system/stability/sliding mode variable structure control/fuzzy logic分类
交通运输引用本文复制引用
陈国平,杨舒涵..电动轮汽车差动助力转向稳定性控制策略[J].重庆理工大学学报（自然科学版）,2018,32(3):1-9,9.基金项目
国家自然科学基金面上项目(51775268) （51775268）
江苏省自然科学基金面上项目(BK20151472) （BK20151472）
