Experimental Investigation on Road Vehicle Active Suspension

Experimental Investigation of Active Disturbance Rejection Control for Vehicle Suspension Design

This paper investigates the vibration attenuation problem of a vehicle suspension test rig, aiming at stabilizing its attitude. In the presence of nonlinear and unknown system dynamics, an accurate mathematical model of the test rig is not available. Active disturbance rejection control is employed to design a controller. An extended state observer is established to estimate the total disturban...

Road Vehicle Suspension Design, Dynamics, and Control

This paper provides an overview of the latest advances in road vehicle suspension design, dynamics, and control, together with the authors' perspectives, in the context of vehicle ride, handling and stability. The general aspects of road vehicle suspension dynamics and design are discussed, followed by descriptions of road roughness excitations with a particular emphasis on road potholes. Passi...

Optimal Vibration Controller for Vehicle Active Suspension System under Road Roughness Disturbances

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 vehicl...

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

Electrohydraulic effects on the modelling of a vehicle active suspension

A car suspension incorporating a Lotus actuator and a TVR suspension/wheel unit is studied both experimentally and analytically. An emphasis is placed on hydraulic modelling using a series of transfer functions linking the hydraulic and suspension components. This is signi cantly aided by the use of a Moog 2000 programmable servo controller (PSC ) to equalize the extending and retracting ow gai...