Optimal control of a semi-active tri-axle lorry suspension

Autor:	S. G. Dale, David Cebon, R L Roebuck
Rok vydání:	2006
Předmět:	Engineering business.industry Mechanical Engineering Vibration control Amplification factor Optimal control Axle Skyhook Control theory Control system Automotive Engineering Full state feedback Safety Risk Reliability and Quality Suspension (vehicle) business
Zdroj:	Vehicle System Dynamics. 44:892-903
ISSN:	1744-5159 0042-3114
Popis:	A vehicle model is developed that captures the dynamics of a semi-active tri-axle air-suspension system with load sharing between three axles. Linear control systems are designed for both 'modified skyhook damping' (MSD) and optimal full-state feedback (FSF) control. Non-linearities in the damping elements are modelled. The performance improvements of the control strategies are quantified by measuring the percentage reduction in dynamic body acceleration (BA) and dynamic tyre force (TF) compared to the optimal passive damping case. It is found that the FSF control offers the best theoretical performance when used with the non-linear damping element, achieving reductions relative to the optimum passive case of 38% in RMS BA and 20% in RMS dynamic TF. This optimum is found only when a gain amplification factor is added into the control loop.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3b0f469220f471f99fbb7a2721866500 https://doi.org/10.1080/00423110600907493 Zobrazit plný text záznamu