摘要
目前大多自动驾驶车辆的转向制动无法实现类人操作,尤其在复杂路况下的连续转向可能导致车身大幅侧倾与俯仰,使乘员产生紧张、眩晕等不舒适感。因此,基于液电式馈能悬架提出一种馈能电路恒流控制方法,实现阻尼力与车身姿态的耦合控制以提高车身稳定性。根据车辆动力学搭建十四自由度整车模型,选取蛇行工况进行仿真分析并完成实车试验。结果表明,液电馈能悬架系统采用恒流控制后比使用传统悬架的车身侧倾角减小32%,俯仰角减小1.67%,显著提高了车身稳定性,验证了所提控制方法的有效性。
At present,the steering and braking of most autonomous vehicles cannot achieve human-like operation,continuous steering may cause the substantially roll and pitch of the vehicle body especially in complex road conditions,causing the occupants to produce nervousness,dizziness,and other uncomfortable feelings.Therefore,a constant current method was proposed based on the hydraulic electrical energy-regenerative suspension to achieve the coupling control of the damping force and the vehicle attitude to improve the stability of the vehicle body.The 14DOF vehicle model was built according to vehicle dynamics,the snaking condition was selected for simulation analysis,and the real vehicle test was completed.The results show that the body roll angle of the hydraulic electrical energy-regenerative suspension system which adopts the constant current control is reduced by 32%,and the pitch angle is reduced by 1.67% compared with the traditional suspension,which significantly improves the vehicle body stability and verifies the effectiveness of the proposed control method.
作者
唐宇飞
武志斐
张翠平
王增荣
TANG Yufei;WU Zhifei;ZHANG Cuiping;WANG Zengrong(College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan Shanxi 030024,China)
出处
《机床与液压》
北大核心
2023年第17期183-189,共7页
Machine Tool & Hydraulics
基金
山西省回国留学人员科研资助项目(2021-050)
山西省基础研究计划(202103021224040)。
关键词
液电馈能悬架
恒流控制
车身姿态
Hydraulic electrical energy-regenerative suspension
Constant current control
Vehicle attitude
