Citation

Ahangarnejad AH, Melzi S. Int. J. Veh. Perform. 2019; 5(1): 2-17.

Copyright

(Copyright © 2019, Inderscience Publishers)

DOI

10.1504/IJVP.2019.097091

PMID

unavailable

Abstract

This paper investigates the effectiveness of an active suspension system designed for regulating the normal force distribution during transients in a passenger car. The proposed control logic modifies the front-rear load distribution to influence the understeer-oversteer response of the vehicle; in particular, actuators of active suspensions are used to generate a system of inertia forces on the car-body for producing a longitudinal load transfer even at constant speed. The proposed control logic is tested numerically with a 14 degree-of-freedom vehicle model: open-loop manoeuvres like lane change and step steer were considered. Simulation results put into evidence that the system can improve of vehicle's stability during fast transients.

Keywords: longitudinal load transfer; active suspension; vehicle dynamics; dynamics and control; simulation; active controller; active safety; yaw rate control; understeer coefficient; normal load distribution.

Language: en