Series Active Variable Geometry Suspension for Road Vehicles

Active Suspension System in Parallel Hybrid Electric Vehicles

In previous studies, active suspension system in conventional powertrain systems was investigated. This paper presents the application of active suspension system in parallel hybrid electric vehicles as a novel idea. The main motivation for this study is investigation of the potential advantages of this application over the conventional one. For this purpose, a simultaneous simulation is develo...

Motorcycle control by variable geometry rear suspension

This work is about controlling the geometry of the rear suspension to reduce cornering weave oscillations associated with high performance motorcycles operating at high speeds. The main lateral oscillations in two-wheeled vehicles are “wobble” and “weave”. The wobble mode is a steering oscillation whose frequency is normally in the range 6− 9 Hz and varies little with speed. The weave mode is a...

A Variable Rear Wing Control System for Road Vehicles

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...

Road noise sensitivity analysis with respect to suspension geometry

In the vehicle development, the importance of reducing road noise is increasing because of the increasing popularity of quiet electric vehicle. The suspension plays an important role on the mechanism of the structure born road noise. As the countermeasure for reducing road noise, low stiffness suspension bush is often used from the point of view of vibration insulation. However, in general, to ...