In semi-active suspensions, the damping force is not regulated by acting directly on the damping ratio itself, but rather on a related variable, usually a current. Unfortunately, the same current may produce different damping ratios, depending on the status of the shock absorber. Many unpredictable factors modify the damper behavior, such as aging, temperature, or damages. In this paper, we propose an on-line, computationally efficient, damping estimation algorithm for electronic suspensions. The approach is based only on inertial measurements signals already available on-board. Experiments performed on a real vehicle proved the effectiveness of our approach.
On Damping Ratio Estimation in Electronic Semi-active Suspensions
Savaresi D.;Chini M.;Formentin S.;Savaresi S. M.
2021-01-01
Abstract
In semi-active suspensions, the damping force is not regulated by acting directly on the damping ratio itself, but rather on a related variable, usually a current. Unfortunately, the same current may produce different damping ratios, depending on the status of the shock absorber. Many unpredictable factors modify the damper behavior, such as aging, temperature, or damages. In this paper, we propose an on-line, computationally efficient, damping estimation algorithm for electronic suspensions. The approach is based only on inertial measurements signals already available on-board. Experiments performed on a real vehicle proved the effectiveness of our approach.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
