具有输入时滞的主动悬挂系统的减振控制

Vibration control for active suspension systems with time-delay input

中文关键词  主动悬挂系统  时滞  观测器  减振控制  变量代换

英文关键词  active suspension systems  time delay  observer  vibration control  variable transformation

中文摘要

      研究具有输入时滞的汽车主动悬挂系统在路面扰动下的减振控制器设计问题. 首先根据汽车悬挂系统的 特点, 从实用性的角度出发化简了悬挂系统的数学模型. 然后提出一种变量代换方法, 将具有输入时滞的主动悬挂 系统转换为形式上不含时滞的系统. 针对转换后的无时滞系统, 设计出具有输入时滞的主动悬挂系统减振控制器: 又从控制器的成本和易实现性出发添加了一个状态观测器. 在这种系统结构下, 设计出一种具有记忆和积分特性 的主动悬挂系统减振控制策略. 仿真结果验证了这种设计控制器的方法是有效的.

英文摘要

      We investigate the design problem of vibration controllers for vehicle active suspension systems with timedelay input from road disturbances. According to the characteristics of the vehicle suspension system, we first simplify the mathematical model of the suspension systems from the view point of practical application. Then, we propose a variable transformation to convert the active suspension system with time-delay input to a system without time-delay. For the converted system without time-delay, we design the vibration controller for the active suspension system with input time-delay, and on the basis of the manufacture and implementation costs we build an additional state observer. In this configuration of system, we develop a vibration control strategy with memory and integral characteristics for the active suspension system. Simulation results show the effectiveness of the controller design approach.