Abstract:
Suppression of unnecessary vibration is an important
aspect in control system design. Passive, semi active, and
active suspension systems are used in vehicles to suppress vibrations
and theoretically active suspension systems provide superior
performance than the prior two types. This paper proposes a
novel method to suppress vibrations using internal motor sensing
method. The proposed active vibration suppression system uses
a reaction force observer to measure and suppress vibrations
acting on the system without using environmental sensors. The
motor forcer acceleration and a current sensor measurements
are used by the reaction force observer to measure the vibration
forces in the system. The proposed system performed system
performance, robustness, and applicability is evaluated using
quarter car suspension system model. The proposed system is
simulated for different conditions to measure the system vibration
suppression capabilities. The simulation results provide evidence
of robust vibration suppression capabilities and applicability of
the controller for real world applications.
