STATE OBSERVER DESIGNS FOR QUARTER-CAR PASSIVE SUSPENSION

This paper presents state observer designs for quarter-car passive suspension. Proposed designs
correspond to two theories, full-order state observer and observer on closed-loop system. Those observers
are used for states and estimation errors observation. Simulation is done using MATLAB and SIMULINK.
MATLAB is used to calculate both feedback gain matrix and observer gain matrix whereas SIMULINK is
applied to build state space block. Results show that those observers work effectively and fit observer
theories. This work may motivate to continue to other steps of observer designs, observer designs for halfcar and full car passive suspension.