Development Of Active Anti Roll Bar Using Fuzzy-PID To Improve Ride Comfort And Handling

Abstract

Safety aspect is one of the main factors in choosing the type of vehicle that satisfied user’s interest. Many studies have been carried out to improve ride comfort including the installation of an active anti-roll bar (AARB) system. AARB works as a vehicle wheel stabilizer that can reduce vehicle body roll during cornering. This study was conducted to obtain the reduction percentage of the roll angle and roll rate for the anti-roll bar when the vehicle passes through a pothole or bump. The value of the roll angle and the roll rate between the anti-roll bar are differentiated and evaluated between passive anti-roll bar (PARB) and active anti-roll bar (AARB) to prove which is the best type of anti-roll bar. Therefore, this study was developed by designing a 4DOF half-vehicle model equipped with an AARB system. Then, this system is added with PID controller and Fuzzy-PID controller that are simulated using MATLAB Simulink software. The anti-roll bar system is tested based on real road situations by include road input disturbances such as speed bump tests and pothole test. Speed bump and pothole tests are conducted to analyze the ride quality of the maneuver single lane test. The simulation results stated that the AARB system with fuzzy-PID has the lowest value of roll angle and roll rate. This contributes to an increase in the percentage reduction of the roll angle and roll rate response. Therefore, this proves that the installation of AARB system with Fuzzy-PID controller is the most efficient in improving ride comfort and vehicle handling.