Optimal Vibration Controller for Vehicle Active Suspension System under Road Roughness Disturbances
نویسندگان
چکیده
The problem of optimal vibration control for vehicle active suspension systems under road roughness disturbance is considered. First, the models for two-degree-freedom quarter-car suspension system under road roughness disturbance are presented, and road disturbances are considered as the output of an exosystem. Then, the feedforward and feedback optimal vibration control (FFOVC) law for vehicle active suspension systems is obtained and the existence and uniqueness of the FFOVC is proved. A state observer is designed to solve the problem of the physically realizable for the feedforward compensator. Numerical simulations illustrate the effectiveness of the FFOVC law.
منابع مشابه
Neural Controller Design for Suspension Systems
The main problem of vehicle vibration comes from road roughness. An active suspension systempossesses the ability to reduce acceleration of sprung mass continuously as well as to minimizesuspension deflection, which results in improvement of tire grip with the road surface. Thus, braketraction control and vehicle maneuverability can be improved consider ably .This study developeda new active su...
متن کاملDesign and Evaluation of an Optimal Fuzzy Pid Controller for an Active Vehicle Suspension System
The goal of studying the vehicle suspension systems is to reduce the vehicle vibrations which are due to the irregularities of road levels and the fluctuations in the vehicle velocity. These vibrations are transferred to the body and occupants of vehicles through the suspension system. In general, the main function of an active suspension system is to support the vehicle body by reducing the in...
متن کاملSliding Mode Control of Half-car Active Suspension
The purpose of the sliding mode controller for a vehicle suspension system is to reduce the discomfort sensed by passengers which arises from road roughness and to increase the ride handling associated with the pitching and rolling movements. This necessitates a very fast and accurate controller to meet as much control objectives, as possible. This paper deals with introducing a new technique s...
متن کاملActive Suspension vibration control using Linear H-Infinity and optimal control
In this paper, the 1/4 vehicle model have been simulated. The vehicle body acceleration using optimal control has been optimized. The vehicle ride comfort is achieved by using robust control, and it has been compared with optimal control. The active suspension can help the vehicle to have a good dynamic behavioral. In this paper, two degrees of freedom dynamic vibration model of a general ve...
متن کاملDesign an intelligent controller for full vehicle nonlinear active suspension systems
The main objective of designed the controller for a vehicle suspension system is to reduce the discomfort sensed by passengers which arises from road roughness and to increase the ride handling associated with the pitching and rolling movements. This necessitates a very fast and accurate controller to meet as much control objectives, as possible. Therefore, this paper deals with an artificial i...
متن کامل