Modelling and control of an electro-mechanical drum parking brake system for vehicle rollaway prevention

The main function of parking brake system is to hold the vehicle stationary on flat or sloped roads. A fully mechanical parking brake (MPB) system seems to have a few drawbacks and rollaway is one of them. A vehicle rolls unintentionally in parking mode when the torque produced by the brake is less...

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Main Author:	Rozaini, Ahmad Humaizi
Format:	Thesis
Language:	English
Published:	2020
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/92108/1/AhmadHumaiziRozainiPSKM2018.pdf.pdf
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id	my-utm-ep.92108
record_format	uketd_dc
spelling	my-utm-ep.921082021-08-30T04:22:42Z Modelling and control of an electro-mechanical drum parking brake system for vehicle rollaway prevention 2020 Rozaini, Ahmad Humaizi TJ Mechanical engineering and machinery The main function of parking brake system is to hold the vehicle stationary on flat or sloped roads. A fully mechanical parking brake (MPB) system seems to have a few drawbacks and rollaway is one of them. A vehicle rolls unintentionally in parking mode when the torque produced by the brake is less than the torque required to hold the vehicle. Rollaway occurs on a MPB-equipped vehicle if the gradient of the road is more than 11.3 degrees and the friction coefficient is less than 0.3. Furthermore, the driver and four passengers on-board also experiences a rollaway if the handbrake force applied is less than 220N when the vehicle in an upward direction and less than 200N when the vehicle in a downward direction. The aim of this research is to evaluate the performance of an electro-mechanical parking brake (EMPB) system. A mathematical modelling of the parking brake assembly based on the drum brake design was firstly developed. Then, an electronic control unit (ECU) model with different controller schemes such as proportional controller (P), and Proportional-Derivative (PD) controller was considered and simulated using MATLAB/SIMULINK to enhance its response performances. The parking brake model and ECU model have been validated using experimental works and it shows a good correlation. From the experimental results, the PD controller of the EMPB performs satisfactorily with engagement time of 1.05s, the steady state error, Ess of 1.66% and percentage overshoot, POS of 5.8%. In conclusion, the performance of the EMPB is within one second engagement time and the error percentage is less than 10%. The results were as good as other electric parking brake (EPB) mechanisms that has been accepted by many researchers. Furthermore, validated mechanical parking brake (MPB) and electro-mechanical parking brake (EMPB) models have been established and rollaway issue has been completely solved. 2020 Thesis http://eprints.utm.my/id/eprint/92108/ http://eprints.utm.my/id/eprint/92108/1/AhmadHumaiziRozainiPSKM2018.pdf.pdf application/pdf en public phd doctoral Universiti Teknologi Malaysia Faculty of Engineering - School of Mechanical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Rozaini, Ahmad Humaizi Modelling and control of an electro-mechanical drum parking brake system for vehicle rollaway prevention
description	The main function of parking brake system is to hold the vehicle stationary on flat or sloped roads. A fully mechanical parking brake (MPB) system seems to have a few drawbacks and rollaway is one of them. A vehicle rolls unintentionally in parking mode when the torque produced by the brake is less than the torque required to hold the vehicle. Rollaway occurs on a MPB-equipped vehicle if the gradient of the road is more than 11.3 degrees and the friction coefficient is less than 0.3. Furthermore, the driver and four passengers on-board also experiences a rollaway if the handbrake force applied is less than 220N when the vehicle in an upward direction and less than 200N when the vehicle in a downward direction. The aim of this research is to evaluate the performance of an electro-mechanical parking brake (EMPB) system. A mathematical modelling of the parking brake assembly based on the drum brake design was firstly developed. Then, an electronic control unit (ECU) model with different controller schemes such as proportional controller (P), and Proportional-Derivative (PD) controller was considered and simulated using MATLAB/SIMULINK to enhance its response performances. The parking brake model and ECU model have been validated using experimental works and it shows a good correlation. From the experimental results, the PD controller of the EMPB performs satisfactorily with engagement time of 1.05s, the steady state error, Ess of 1.66% and percentage overshoot, POS of 5.8%. In conclusion, the performance of the EMPB is within one second engagement time and the error percentage is less than 10%. The results were as good as other electric parking brake (EPB) mechanisms that has been accepted by many researchers. Furthermore, validated mechanical parking brake (MPB) and electro-mechanical parking brake (EMPB) models have been established and rollaway issue has been completely solved.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Rozaini, Ahmad Humaizi
author_facet	Rozaini, Ahmad Humaizi
author_sort	Rozaini, Ahmad Humaizi
title	Modelling and control of an electro-mechanical drum parking brake system for vehicle rollaway prevention
title_short	Modelling and control of an electro-mechanical drum parking brake system for vehicle rollaway prevention
title_full	Modelling and control of an electro-mechanical drum parking brake system for vehicle rollaway prevention
title_fullStr	Modelling and control of an electro-mechanical drum parking brake system for vehicle rollaway prevention
title_full_unstemmed	Modelling and control of an electro-mechanical drum parking brake system for vehicle rollaway prevention
title_sort	modelling and control of an electro-mechanical drum parking brake system for vehicle rollaway prevention
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Engineering - School of Mechanical Engineering
publishDate	2020
url	http://eprints.utm.my/id/eprint/92108/1/AhmadHumaiziRozainiPSKM2018.pdf.pdf
_version_	1747818570842112000

Modelling and control of an electro-mechanical drum parking brake system for vehicle rollaway prevention

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