Dynamics and control policies analysis of semi-active suspension systems using a full-car model. (27th December 2007)

• Record Type: Journal Article
• Authors: Ihsan, S.I.; Faris, Waleed F.; Ahmadian, M.
• Is Part Of: International journal of vehicle noise and vibration. Volume 3:Number 4(2007)
• Page Start: 370
• Page End: 405
• Publication Date: 2007-12-27
• Subjects: ride comfort -- full-car model -- semi-active suspension systems -- groundhook control -- skyhook control -- hybrid control -- passive suspension systems -- suspension displacement -- road-holding performance -- passenger cars -- automotive suspensions -- vehicle vibration; Automobiles -- Noise -- Periodicals; Automobiles -- Vibration -- Periodicals; 629.231
• Languages: English
• ISSNs: 1479-1471

Abstract

Several control policies of semi-active systems, namely skyhook, groundhook and hybrid controls, are presented. Their ride comfort, suspension displacement and road-holding performances are analysed 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. The hybrid control policy is also shown to be a better compromise between comfort, roadholding and suspension displacement than the skyhook and groundhook control policies.