Title: Model-in-the-loop simulation of gap and torque tracking control using electronic wedge brake actuator

Authors: Vimal Rau Aparow; Khisbullah Hudha; Fauzi Ahmad; Hishamuddin Jamaluddin

Addresses: Department of Mechanical Engineering, Faculty of Engineering, National Defence University of Malaysia (UPNM), Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia ' Department of Mechanical Engineering, Faculty of Engineering, National Defence University of Malaysia (UPNM), Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia ' Smart Material and Automotive Control (SMAC) Group, Department of Automotive Engineering, Faculty of Mechanical Engineering, Technical University of Malaysia Malacca (UTeM), 76109 Durian Tunggal, Melaka, Malaysia ' Department of System Dynamics and Control, Faculty of Mechanical Engineering, University of Technology, Malaysia (UTM), 81310 UTM Skudai, Johor, Malaysia

Abstract: This paper presents gap and torque tracking controls of a new braking system for Brake-by-Wire (BBW) using a wedging mechanism. A validation technique known as Model-in-the-Loop Simulation (MILS) is proposed to evaluate the effectiveness of EWB actuator and model. MILS is divided into two types of techniques, which are Hardware-in-the-Loop Simulation (HILS) using real EWB actuator and Software-in-the-Loop Simulation (SILS) using Gaussian cumulative distribution technique. A brake test rig is developed for HILS using EWB actuator, Electronic Control Unit, National Instrument board, xPC Host and Target PC. Meanwhile, mathematical equations are developed for SILS using Matlab Simulink. Both techniques are used to evaluate the performance of EWB actuator and EWB's mathematical model in controlling the gap and torque using various inputs. The results show that the responses from the actuator and EWB model closely followed the desired trajectories, indicating that EWB is capable to be used for vehicle active braking.

Keywords: gap control; torque control; EWB; electronic wedge brake; MILS; model-in-the-loop simulation; HILS; hardware-in-the-loop simulation; SILS; software-in-the-loop simulation; vehicle safety; tracking control; wedge brake actuators; mathematical modelling; vehicle active braking.

DOI: 10.1504/IJVS.2014.063250

International Journal of Vehicle Safety, 2014 Vol.7 No.3/4, pp.390 - 408

Received: 31 May 2013
Accepted: 30 Oct 2013

Published online: 08 Jul 2014 *

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