Title :
DE-based PID control of full-car nonlinear, servo-hydraulic suspension systems
Author :
Pedro, Jimoh O. ; Dangor, M. ; Dahunsi, O.A. ; Ali, Md Mortuza
Author_Institution :
Sch. of Mech., Ind. & Aeronaut. Eng., Univ. of the Witwatersrand, Johannesburg, South Africa
Abstract :
This paper presents a differential evolution (DE)-based multi-loop proportional-integral-derivative (PID) controller design for full-car nonlinear, servo-hydraulic suspension systems. The multi-loop PID control stabilises the actuator via forcefeedback and also improves the system performance. Controller gains are computed using manual tuning and through DE optimization to minimise a performance index, which addresses suspension travel, road holding, vehicle handling, ride comfort and power consumption constraints. Simulation results showed superior performance of the DE-optimized PID-controlled active vehicle suspension system (AVSS) over the manually-tuned PID-controlled AVSS and the passive vehicle suspension system (PVSS)1.
Keywords :
actuators; automobiles; control system synthesis; evolutionary computation; force feedback; hydraulic systems; nonlinear control systems; performance index; servomechanisms; stability; suspensions (mechanical components); three-term control; AVSS; DE optimization; DE-based PID control; PID controller design; PVSS; active vehicle suspension system; actuator stabilisation; controller gains; differential evolution; force-feedback; full-car nonlinear system; multiloop PID control; multiloop proportional-integral-derivative controller design; passive vehicle suspension system; performance index minimisation; power consumption constraints; ride comfort; road holding; servo-hydraulic suspension system; suspension travel; system performance improvement; vehicle handling; Actuators; Roads; Suspensions; Vectors; Vehicle dynamics; Vehicles; Wheels;
Conference_Titel :
AFRICON, 2013
Conference_Location :
Pointe-Aux-Piments
Print_ISBN :
978-1-4673-5940-5
DOI :
10.1109/AFRCON.2013.6757806
