This chapter mainly introduces the vertical dynamics which involves optimizing the design of parameters for a suspension system. Suspension systems can be divided into passive suspension, semi‐active suspension, and active suspension, according to the different control modes used. Most vehicles still implement traditional passive suspension systems. The chapter also introduces the mathematical models, the implementation of the genetic algorithm, the design of a linear quadratic Gauss (LQG) controller for a semi‐active suspension system, and the simulation results. The time‐lag phenomenon widely exists in vehicle control systems, and is one of the main factors that causes system instability and decreases performance. Due to the great influence on performance in a suspension system, the time‐lag problem is one of the hotspot studies of semi‐active suspension systems. The orders of an active suspension model can be more than 20 according to different degrees of freedom.
Vertical Vehicle Dynamics and Control
2016-04-01
58 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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