Pitch motion control using active suspension during antilock braking

Antilock braking system (ABS) is a braking system used to prevent the wheels from locking up while braking, Active suspension is an automotive suspension that could control the movement of the wheels in vertical direction relative to the body of the vehicle by ultilizing an onboard system. In this r...

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Main Author:	Mahamed, Mohd Hirzan
Format:	Thesis
Language:	English English
Published:	2022
Subjects:	T Technology (General)
Online Access:	http://eprints.utem.edu.my/id/eprint/26108/1/Pitch%20motion%20control%20using%20active%20suspension%20during%20antilock%20braking.pdf http://eprints.utem.edu.my/id/eprint/26108/2/Pitch%20motion%20control%20using%20active%20suspension%20during%20antilock%20braking.pdf
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id	my-utem-ep.26108
record_format	uketd_dc
spelling	my-utem-ep.261082022-11-23T09:25:35Z Pitch motion control using active suspension during antilock braking 2022 Mahamed, Mohd Hirzan T Technology (General) TL Motor vehicles. Aeronautics. Astronautics Antilock braking system (ABS) is a braking system used to prevent the wheels from locking up while braking, Active suspension is an automotive suspension that could control the movement of the wheels in vertical direction relative to the body of the vehicle by ultilizing an onboard system. In this research, the capability of the active suspension to reduce the pitch motion during antilock braking is studied. A large pitch motion ocours when ABS is applied during hard braking, causing discomfort to the vehicle occupants. To solve the problem, the equations of motion of the seven degrees of freedom (7 DOF) vehicle model are derived. Furthermore, the control systems of ABS and active suspension are designed, where the former is designed by using proportional-integral-derivative (PID) approach. The simulations of the control systems are performed in Matlab Simulink environment. For dry and wet road surfaces, seven plots in time domain are generated based on the simulation results namely vertical displacement, vertical velocity, vertical acceleration, pitch angle, pitch rate, and pitch acceleration of sprung mass, as well as active suspension force during antilock braking. The plots showed significant improvements of using active suspension compared to passive suspension during antilock braking. Histograms for the maximum vertical displacement and pitch angle of the sprung mass for both road surfaces showed improvement of between 86% and 89% for using active suspension compared to using passive suspension during antilock braking. The huge improvements concluded that pitch and vertical motion could be effectively controlled using active suspension during antilock braking. 2022 Thesis http://eprints.utem.edu.my/id/eprint/26108/ http://eprints.utem.edu.my/id/eprint/26108/1/Pitch%20motion%20control%20using%20active%20suspension%20during%20antilock%20braking.pdf text en validuser http://eprints.utem.edu.my/id/eprint/26108/2/Pitch%20motion%20control%20using%20active%20suspension%20during%20antilock%20braking.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=121374 mphil masters Universiti Teknikal Malaysia Melaka Faculty of Mechanical Engineering Phuman Singh, Amrik Singh
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
advisor	Phuman Singh, Amrik Singh
topic	T Technology (General) T Technology (General)
spellingShingle	T Technology (General) T Technology (General) Mahamed, Mohd Hirzan Pitch motion control using active suspension during antilock braking
description	Antilock braking system (ABS) is a braking system used to prevent the wheels from locking up while braking, Active suspension is an automotive suspension that could control the movement of the wheels in vertical direction relative to the body of the vehicle by ultilizing an onboard system. In this research, the capability of the active suspension to reduce the pitch motion during antilock braking is studied. A large pitch motion ocours when ABS is applied during hard braking, causing discomfort to the vehicle occupants. To solve the problem, the equations of motion of the seven degrees of freedom (7 DOF) vehicle model are derived. Furthermore, the control systems of ABS and active suspension are designed, where the former is designed by using proportional-integral-derivative (PID) approach. The simulations of the control systems are performed in Matlab Simulink environment. For dry and wet road surfaces, seven plots in time domain are generated based on the simulation results namely vertical displacement, vertical velocity, vertical acceleration, pitch angle, pitch rate, and pitch acceleration of sprung mass, as well as active suspension force during antilock braking. The plots showed significant improvements of using active suspension compared to passive suspension during antilock braking. Histograms for the maximum vertical displacement and pitch angle of the sprung mass for both road surfaces showed improvement of between 86% and 89% for using active suspension compared to using passive suspension during antilock braking. The huge improvements concluded that pitch and vertical motion could be effectively controlled using active suspension during antilock braking.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Mahamed, Mohd Hirzan
author_facet	Mahamed, Mohd Hirzan
author_sort	Mahamed, Mohd Hirzan
title	Pitch motion control using active suspension during antilock braking
title_short	Pitch motion control using active suspension during antilock braking
title_full	Pitch motion control using active suspension during antilock braking
title_fullStr	Pitch motion control using active suspension during antilock braking
title_full_unstemmed	Pitch motion control using active suspension during antilock braking
title_sort	pitch motion control using active suspension during antilock braking
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty of Mechanical Engineering
publishDate	2022
url	http://eprints.utem.edu.my/id/eprint/26108/1/Pitch%20motion%20control%20using%20active%20suspension%20during%20antilock%20braking.pdf http://eprints.utem.edu.my/id/eprint/26108/2/Pitch%20motion%20control%20using%20active%20suspension%20during%20antilock%20braking.pdf
_version_	1776103140316151808

Pitch motion control using active suspension during antilock braking

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