PID control of a nonlinear half-car active suspension system via force feedback

Author

Ekoru, John E D ; Dahunsi, Olurotirni A. ; Pedro, Jirnoh O.

Author_Institution

Sch. of Mech., Aeronaut. & Ind. Eng., Univ. of the Witwatersrand, Johannesburg, South Africa

fYear

2011

fDate

13-15 Sept. 2011

Firstpage

1

Lastpage

6

Abstract

This paper presents the design of a two-loop, force/suspension travel PID control system, for a four degree-of-freedom (DOF), nonlinear, half-car active vehicle suspension system (AVSS). The two-loop system consists of an inner PID hydraulic actuator force control loop and an outer PID suspension travel control loop. Performance of the PID based AVSS is compared to a passive, nonlinear, half-car suspension system with the same model parameters. The simulation results showed the superior performance of the AVSS in the presence of the deterministic road disturbance.

Keywords

automotive engineering; force control; force feedback; hydraulic actuators; nonlinear control systems; suspensions (mechanical components); three-term control; DOF; deterministic road disturbance; force feedback; force-suspension travel PID control system; four degree-of-freedom; inner PID hydraulic actuator force control loop; nonlinear half-car active vehicle suspension system; outer PID suspension travel control loop; two-loop PID control system; Force; Suspensions; Wheels; Active Vehicle Suspension System; Actuator Dynamics; Force control; Half-Car; PID control;

fLanguage

English

Publisher

ieee

Conference_Titel

AFRICON, 2011

Conference_Location

Livingstone

ISSN

2153-0025

Print_ISBN

978-1-61284-992-8

Type

conf

DOI

10.1109/AFRCON.2011.6071979

Filename

6071979