Page 63 - 2023-Vol19-Issue2

59 | Matrood & Nassar

TABLE IV.
MODIFIED PID CONTROLLER GAINS

Controller Kp Ki Kd

Modified PID controller 1 85 40 4250

Modified PID controller 2 100 35 3000

Fig. 13. Rear suspension deflection

Fig. 10. Front body vertical displacement

Fig. 14. Half-car body velocity

Fig. 11. Rear body vertical displacement

Fig. 12. Front suspension deflection Fig. 15. Half-car body acceleration

VI. CONCLUSION

The proposed modified PID controller has a better perfor-
mance to suppress vehicle body vibrations resulted from road
disturbances. Also, the modified PID controller has a better
reference tracking than conventional PID controller. In ad-
dition, the advantage of using modified PID controller is the