Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
VIRTUAL MODEL OF ELECTRICALLY ASSISTED POWER STEERING FOR APPLICATION IN DYNAMIC VEHICLE SIMULATOR
Submission Author:
Carlos André Lobo Cordeiro Costa , MG
Co-Authors:
Carlos André Lobo Cordeiro Costa, Arthur Caetano, Luis Henrique Andrade Maia, Jánes Landre Júnior, Claysson Vimieiro
Presenter: Claysson Vimieiro
doi://10.26678/ABCM.COBEM2019.COB2019-0049
Abstract
This work aims to develop a generic EPS model, an Electronically Assisted Steering System, using the MatLab/Simulink platform from its mathematical model. EPS uses an electric motor as a source of torque assistance, thus reducing the driver's efforts when steering the steering wheel. For this, the control logic is built around of the torque map that is applied by the auxiliary engine in the steering system. The big challenge is to adjust the torque map in the dynamics of the system so that the driver has a feeling of direction. Torque assist varies with vehicle speed and input torque driver, with higher assisted torques for lower speed and lower torque when the vehicle is at high speed, which makes this system non-linear. The expected results based on studies from other bibliographies are a refined model able to realistically simulate EPS, validating the developed mathematical model and proposed control logic.
Keywords
EPS model, Control Systems, simulink, Torque Map, SIMCenter
