Several control policies of a full-car 7-DOF semi-active system, namely skyhook, groundhook and hybrid controls, are presented. Their ride comfort, suspension displacement and road-holding performances are analyzed and compared with passive systems. The analysis covers both transient and steady-state responses in the time domain and transmissibility response in the frequency domain. The results show that the hybrid control policy yields better comfort than a passive suspension, without reducing the road-holding quality or increasing the suspension displacement for typical passenger cars. Skyhook control policy significantly improves performance of all responses, while groundhook control policy significantly improves the responses when input frequency is equivalent to natural frequencies. The hybrid control policy is also shown to be a better compromise between comfort, road holding and suspension displacement than the skyhook and groundhook control policies.
Dynamics and control policies analysis of semi-active suspension systems using a full-car model
International Journal of Vehicle Noise and Vibration ; 3 , 4 ; 370-405
2007
36 Seiten, 29 Bilder, 3 Tabellen, 12 Quellen
Aufsatz (Zeitschrift)
Englisch
Dynamics and control policies analysis of semi-active suspension systems using a full-car model
Online Contents | 2007
|Dynamics and control policies analysis of semi-active suspension systems using a full-car model
Kraftfahrwesen | 2007
|Semi-active suspension control for a full vehicle model
Tema Archiv | 1991
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