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.
Theoretical Limitations in Active Vehicle Suspensions
Vehicle System Dynamics ; 15 , 1 ; 41-54
1986-01-01
14 pages
Article (Journal)
Electronic Resource
Unknown
Theoretical Limitations in Active Vehicle Suspensions
Automotive engineering | 1986
|Comparing the performance and limitations of semi-active suspensions
Automotive engineering | 2007
|Comparing the performance and limitations of semi-active suspensions
Online Contents | 2007
|Taylor & Francis Verlag | 1987
|Taylor & Francis Verlag | 1987
|