On-line Damping Estimation in Road Vehicle Semi-active Suspension Systems

Optimal and Robust Damping Control for Semi-active Vehicle Suspension

The paper focusses on optimal control issues arising in semi-active vehicle suspension motivated by the application of continuously controllable ERF-shock absorbers. Optimality of the damping control is measured by an objective consisting of a weighted sum of criteria related to safety and comfort which depend on the state variables of the vehicle dynamics model. In the case of linear objective...

Road-Frequency Adaptive Control for Semi-Active Suspension Systems

In this paper, a road-frequency adaptive control for semi-active suspension systems is investigated. The control aims to improve the vehicle suspension performance (ride comfort and wheel handling) for all frequency regions of road disturbances. In order to achieve this aim, the control law is extended from the conventional skyhook control, and the controller gains are scheduled for various fre...

Semi-Active Suspension Control Considering Lateral Vehicle Dynamics Due to Road Input

Using Car Semi-Active Suspension Systems To Decrease Undesirable Effects Of Road Excitations On Human Health

I. Abstract People daily use their cars for various reasons. This daily traveling also has some disadvantages. For instance, when a car passes a road excitation, the vertical acceleration caused by it may unfavorably affect human health. In this paper, a quarter-car model with semi-active suspension system is considered and three different control approaches (optimal control, fuzzy control, opt...

Semi-active damping systems for railway bridges

In this paper, a semi-active control system for vibration mitigation of railway bridges is presented. The real time frequency response is estimated using a short-time Fourier transform, employing curve fitting to relevant peaks for increased accuracy. A control algorithm developed in MATLAB® is linked to a commercial FE-software, facilitating application on arbitrary structures. A numerical stu...