|International Journal of Computer Applications
|Foundation of Computer Science (FCS), NY, USA
|Volume 161 - Number 12
|Year of Publication: 2017
|Authors: Karim H. Ali, Farah Ayad A. Majeed
Karim H. Ali, Farah Ayad A. Majeed . Improve Roll Dynamic Response of Road Vehicle to Step Steer Input using Semi-active PID Suspension Controller. International Journal of Computer Applications. 161, 12 ( Mar 2017), 8-14. DOI=10.5120/ijca2017913103
Roll dynamic response is investigated and studied to improve the dynamic behavior of road vehicle during sudden maneuver according to step steer input using semi-active PID suspension. A Mathematical model including the differential governing equations of operation for full road vehicle with (9) degrees of freedom and passive PID suspension is presented. Car body movements and displacements are investigated using Computer-aided simulation with Matlab Program for different vehicle speeds and specified step steer angles. A special technique is used to transform the second order differential equations of operation for the road vehicle into first order equations in order to reduce the computational time. Simulation results shows the dynamic responses of road vehicle at vertical, pitch and roll motions subjected to different vehicle speeds and step steer angles utilizing settling time and maximum peak overshoot, also the results show an improvement in dynamic roll response using semi-active PID suspension with conical shaped spring.