Adaptive Semi-Active Suspension Design Considering Cloud-based Road Information

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

H-infinity Filtering for Cloud-Aided Semi-active Suspension with Delayed Information

This chapter presents an H∞ filtering framework for cloud-aided semiactive suspension system with time-varying delays. In this system, road profile information is downloaded from a cloud database to facilitate onboard estimation of suspension states. Time-varying data transmission delays are considered and assumed to be bounded. A quarter-car linear suspension model is used and an H∞ filter is ...

Road adaptive active suspension design using linear parameter-varying gain-scheduling

This paper presents a novel approach to the design of road adaptive active suspensions via a combination of linear parameter-varying control and nonlinear backstepping techniques. Two levels of adaptation are considered: the lower level control design shapes the nonlinear characteristics of the vehicle suspension as a function road conditions, while the higher level design involves adaptive swi...

Road-Adaptive Nonlinear Design of Active Suspensions

Recently we proposed a novel nonlinear control design for active suspensions, which features a lter whose band-width is a nonlinear function of suspension travel; this lter results in an improved tradeoo between ride comfort and rattlespace usage. In this paper we augment this controller with a new road-adaptive algorithm which continuously monitors suspension travel and adjusts on-line the sha...