Theoretical Limitations in Active Vehicle Suspensions
- 1 January 1986
- journal article
- research article
- Published by Informa UK Limited in Vehicle System Dynamics
- Vol. 15 (1), 41-54
- https://doi.org/10.1080/00423118608968839
Abstract
Vehicle suspensions in which forces are generated in response to feedback signals by active elements obviously offer increased design flexibility compared to conventional suspensions using passive elements such as springs and dampers. It is often assumed that if practical difficulties are neglected, active systems could in principle produce arbitrary ideal, behavior. It is shown, using a simple linear two degree-of-freedom suspension system, model that even using complete state feed back and in the case of in which the system is controllable in the control theory sense, there still are limitations to suspension performance in the fully active case. If the ideal suspension performance is defined based on low-pass filtering of roadway unevenness inputs, an active suspension may not offer much better performance than a partially active or adaptive passive suspension depending upon the values of certain vehicle parameters.Keywords
This publication has 4 references indexed in Scilit:
- Adaptive Suspension Concepts for Road VehiclesVehicle System Dynamics, 1984
- Semi-Active Control of Wheel Hop in Ground VehiclesVehicle System Dynamics, 1983
- Active Damping in Road Vehicle Suspension SystemsVehicle System Dynamics, 1983
- Optimum Linear Preview Control With Application to Vehicle SuspensionJournal of Basic Engineering, 1968