TY - GEN
T1 - Experimental validation of a new model-based control strategy for a semi-active suspension system
AU - Pellegrini, Enrico
AU - Spirk, Sebastian
AU - Pletschen, Nils
AU - Lohmann, Boris
PY - 2012
Y1 - 2012
N2 - Aiming at the control of a continuously variable hydraulic semi-active damper, in this paper a dynamic feedforward control approach is combined with a feedback component. In order to track reference forces from higher level suspension controllers, in practice, the damper current inputs are mainly calculated by means of static damper characteristics. Thereby, dynamic effects of the damper force generation are neglected. By taking the dynamic damper behavior into account, the model used in the proposed feedforward control component describes the damper behavior considerably better than the state of the art. Moreover, the additional feedback element further improves the precision of the actual provided damping force. The new concept is validated in real-time experiments on a quarter-car test rig for a semi-active suspension system. Using a skyhook law, its performance is analyzed in comparison to the static characteristic-based control. As better force tracking is provided, the proposed model-based strategy is able to improve ride comfort and ride safety simultaneously.
AB - Aiming at the control of a continuously variable hydraulic semi-active damper, in this paper a dynamic feedforward control approach is combined with a feedback component. In order to track reference forces from higher level suspension controllers, in practice, the damper current inputs are mainly calculated by means of static damper characteristics. Thereby, dynamic effects of the damper force generation are neglected. By taking the dynamic damper behavior into account, the model used in the proposed feedforward control component describes the damper behavior considerably better than the state of the art. Moreover, the additional feedback element further improves the precision of the actual provided damping force. The new concept is validated in real-time experiments on a quarter-car test rig for a semi-active suspension system. Using a skyhook law, its performance is analyzed in comparison to the static characteristic-based control. As better force tracking is provided, the proposed model-based strategy is able to improve ride comfort and ride safety simultaneously.
UR - http://www.scopus.com/inward/record.url?scp=84869387424&partnerID=8YFLogxK
U2 - 10.1109/acc.2012.6314963
DO - 10.1109/acc.2012.6314963
M3 - Conference contribution
AN - SCOPUS:84869387424
SN - 9781457710957
T3 - Proceedings of the American Control Conference
SP - 515
EP - 520
BT - 2012 American Control Conference, ACC 2012
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2012 American Control Conference, ACC 2012
Y2 - 27 June 2012 through 29 June 2012
ER -