TY - GEN
T1 - Potential of low bandwidth active suspension control with continuously variable damper
AU - Koch, Guido
AU - Fritsch, Oliver
AU - Lohmann, Boris
PY - 2008
Y1 - 2008
N2 - Due to rising customer demands for driving comfort, the integration of controlled active and semi-active elements in modern vehicle suspension systems has increased considerably. A significant number of upper class vehicle suspensions is either equipped with continuously variable dampers or low bandwidth actuators. However, the combination of these suspension elements is not applied so far. In this paper active quarter car models are used to design time-invariant LQR controllers for specific road conditions. By optimizing the controller weights and damping ratio based on a new iterative optimization procedure, the potential of road adaptive low bandwidth systems with continuously variable dampers is clearly highlighted. It is shown that ride comfort can be significantly increased while satisfying given constraints for ride safety (maximum tire deflections) and suspension travel. The achievable performance is compared to passive and high bandwidth active suspension systems using carpet plots.
AB - Due to rising customer demands for driving comfort, the integration of controlled active and semi-active elements in modern vehicle suspension systems has increased considerably. A significant number of upper class vehicle suspensions is either equipped with continuously variable dampers or low bandwidth actuators. However, the combination of these suspension elements is not applied so far. In this paper active quarter car models are used to design time-invariant LQR controllers for specific road conditions. By optimizing the controller weights and damping ratio based on a new iterative optimization procedure, the potential of road adaptive low bandwidth systems with continuously variable dampers is clearly highlighted. It is shown that ride comfort can be significantly increased while satisfying given constraints for ride safety (maximum tire deflections) and suspension travel. The achievable performance is compared to passive and high bandwidth active suspension systems using carpet plots.
KW - Adaptive and robust control of automotive systems
KW - Modeling, supervision, control and diagnosis of automotive systems
KW - Vehicle dynamic systems
UR - http://www.scopus.com/inward/record.url?scp=79961019312&partnerID=8YFLogxK
U2 - 10.3182/20080706-5-KR-1001.2297
DO - 10.3182/20080706-5-KR-1001.2297
M3 - Conference contribution
AN - SCOPUS:79961019312
SN - 9783902661005
T3 - IFAC Proceedings Volumes (IFAC-PapersOnline)
BT - Proceedings of the 17th World Congress, International Federation of Automatic Control, IFAC
T2 - 17th World Congress, International Federation of Automatic Control, IFAC
Y2 - 6 July 2008 through 11 July 2008
ER -