基于车身模态运动及作动力分配权重的半主动悬架控制方法
A Semi-active Suspension Control Method Based on Vehicle Modal Motion and Power Allocation Weights
李奕宝 1罗谢盼 1樊义祥1
作者信息
- 1. 广州汽车集团股份有限公司汽车工程研究院,广东广州 511434
- 折叠
摘要
针对整车半主动悬架减振器作动力的分配问题,本文根据车身的模态运动建立了常规分配方法,并以此为基础提出一种全新的基于车身模态运动权重的分配策略.通过仿真求解非线性频率响应,权重高的模态运动对应的幅频特性得到了进一步优化.随后又使用比利时随机路谱进行仿真,通过调整权重,可以实现车身侧倾控制和俯仰控制的明显优化.基于权重的分配方法简单有效,不依赖车辆参数,更具普适性,能与其他控制算法相互补充,具有较大应用场景.
Abstract
For the power distribution problem of the semi-active shock absorber of the vehicle,A conventional distribution method is established according to the modal motion of the vehicle body,and a new distribution strategy based on the modal motion weight of the vehicle body is proposed on this basis.The nonlinear frequency response is solved by simulation,and the amplitude-frequency characteristics corresponding to the modal motion with high weight are further optimized.The Belgian random road spectrum was then used for simulation.By adjusting the weights,a significant optimization of body roll control and pitch control can be achieved.The weight-based distribution method is simple and effective,does not depend on vehicle parameters,is more universal,can complement each other with other control algorithms,and has a large application scenario.
关键词
天棚控制/模态运动/作动力分配Key words
sky-hook control/modal motion/power distribution引用本文复制引用
出版年
2024
NETL
NSTL
万方数据