Among the many different types of controlled suspensions (load-leveling, adaptive shock absorbers, semi-active, slow-active, full-active, etc.), semi-active suspensions have recently received a lot of attention, since they seem to provide the best compromise between costs (energy consumption and actuators/sensors hardware) and performance. Their advantage is that they only require shock-absorbers with controllable damping coefficient, which are known to be comparatively economic and to absorb a negligible amount of power. The problem considered in this paper is the design and analysis of the optimal control strategy for comfort-oriented semi-active suspensions in road vehicles. The goal of this work is to study and analyze the best control algorithm, and to use it as a benchmark. It is shown that the best control algorithm is an on-off switching strategy, which is designed using the principles of optimal and predictive control, under the assumption that the road disturbance can be predicted over a short time-horizon. Even though this optimal control strategy can be computationally intensive in a real-time application, it sets a lower bound on the best possible attenuation performance achievable by semi-active damping control.
On the optimal predictive control algorithm for comfort-oriented semi-active suspensions
Über den optimalen Prädiktivalgorithmus für komfortorientierte halbaktive Radaufhängungen
2004
8 Seiten, 5 Bilder, 27 Quellen
Conference paper
English
On the Optimal Predictive Control Algorithm for Comfort-Oriented Semi-Active Suspensions
SAE Technical Papers | 2004
|On the Optimal Predictive Control Algorithm for Comfort-Oriented Semi-Active Suspensions
British Library Conference Proceedings | 2004
|On the optimal predictive control algorithm for comfort-oriented semi-active suspensions
Automotive engineering | 2004
|On the Optimal Predictive Control Algorithm for Comfort-Oriented Semi-Active Suspensions
British Library Conference Proceedings | 2004
|