Open AccessAnalysis of Control Policies and Dynamic Response of a Q‐Car 2‐DOF Semi Active System
Author(s) -
Sany Izan Ihsan,
Waleed Fekry Faris,
Mehdi Ahmadian
Publication year - 2007
Publication title -
shock and vibration
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 45
eISSN - 1875-9203
pISSN - 1070-9622
DOI - 10.1155/2008/807498
Subject(s) - skyhook , suspension (topology) , ride quality , displacement (psychology) , control theory (sociology) , transmissibility (structural dynamics) , engineering , control (management) , frequency domain , transient (computer programming) , time domain , automotive engineering , computer science , damper , control engineering , mathematics , sprung mass , artificial intelligence , psychotherapist , psychology , quantum mechanics , homotopy , vibration , computer vision , physics , vibration isolation , pure mathematics , operating system
Several control policies of Q-car 2-DOF semiactive system, namely skyhook, groundhook and hybrid controls are presented. Their ride comfort, suspension displacement and road-holding performances are analyzed and compared with passive system. The analysis covers both transient and steady state responses in time domain and transmissibility response in 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, road-holding and suspension displacement than the skyhook and groundhook control policies.
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