Ride comfort assessment in off road vehicles using passive and semi-active suspension

Vehicles handling and ride comfort are essential subject because these vehicles operate at different environments. Improving the comfort ability enables the drivers to derive for a long time at critical situations with full activity. This paper deals with dynamics and control policies analysis of se...

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Main Authors:	Faris, Waleed Fekry, BenLahcene, Zohir, Ihsan, Sany Izan
Format:	Conference or Workshop Item
Language:	English
Published:	2009
Subjects:	TL Motor vehicles. Aeronautics. Astronautics
Online Access:	http://irep.iium.edu.my/14694/ http://irep.iium.edu.my/14694/1/Ride_Comfort_Assessment_in_Off_Road_Vehicles_using_passive_and_semi-active_suspension.pdf

id	iium-14694
recordtype	eprints
spelling	iium-146942012-01-16T07:13:16Z http://irep.iium.edu.my/14694/ Ride comfort assessment in off road vehicles using passive and semi-active suspension Faris, Waleed Fekry BenLahcene, Zohir Ihsan, Sany Izan TL Motor vehicles. Aeronautics. Astronautics Vehicles handling and ride comfort are essential subject because these vehicles operate at different environments. Improving the comfort ability enables the drivers to derive for a long time at critical situations with full activity. This paper deals with dynamics and control policies analysis of semi-active suspension systems for off-road vehicles. Three configurations of these vehicles; 2-axle, 3-xle and 4-axles have been studied and their performances are compared. The application of several control policies of semi-active suspension system, namely skyhook; ground-hook and hybrid controls have been analyzed and compared with passive systems.The results show that the hybrid control policy yields better comfort than a passive suspension, without reducing the road-holding quality or increasing the suspension displacement. The hybrid control policy is also shown to be a better compromise between comfort, road-holding and suspension displacement than the skyhook and ground-hook control policies. Skyhook control generally improves sprung mass responses while at the same time increase unsprung mass responses. On the other hand, ground-hook control generally improves unsprung mass responses at the expense of the sprung mass responses. Ground-hook control also found to take longer time to settle in transient state response. Results show an improvement in ride comfort and vehicle handling using 4-axle over 3-axle and 2-axle when emphasis is placed on the response of the vehicle body acceleration, suspension and tyre deflection. 2009-10-06 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/14694/1/Ride_Comfort_Assessment_in_Off_Road_Vehicles_using_passive_and_semi-active_suspension.pdf Faris, Waleed Fekry and BenLahcene, Zohir and Ihsan, Sany Izan (2009) Ride comfort assessment in off road vehicles using passive and semi-active suspension. In: Asia pacific Conference on Defence & Security Technology (DSTC 2009), 6-7 October 2009, Hotel Istana, Kuala Lumpur. (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TL Motor vehicles. Aeronautics. Astronautics
spellingShingle	TL Motor vehicles. Aeronautics. Astronautics Faris, Waleed Fekry BenLahcene, Zohir Ihsan, Sany Izan Ride comfort assessment in off road vehicles using passive and semi-active suspension
description	Vehicles handling and ride comfort are essential subject because these vehicles operate at different environments. Improving the comfort ability enables the drivers to derive for a long time at critical situations with full activity. This paper deals with dynamics and control policies analysis of semi-active suspension systems for off-road vehicles. Three configurations of these vehicles; 2-axle, 3-xle and 4-axles have been studied and their performances are compared. The application of several control policies of semi-active suspension system, namely skyhook; ground-hook and hybrid controls have been analyzed and compared with passive systems.The results show that the hybrid control policy yields better comfort than a passive suspension, without reducing the road-holding quality or increasing the suspension displacement. The hybrid control policy is also shown to be a better compromise between comfort, road-holding and suspension displacement than the skyhook and ground-hook control policies. Skyhook control generally improves sprung mass responses while at the same time increase unsprung mass responses. On the other hand, ground-hook control generally improves unsprung mass responses at the expense of the sprung mass responses. Ground-hook control also found to take longer time to settle in transient state response. Results show an improvement in ride comfort and vehicle handling using 4-axle over 3-axle and 2-axle when emphasis is placed on the response of the vehicle body acceleration, suspension and tyre deflection.
format	Conference or Workshop Item
author	Faris, Waleed Fekry BenLahcene, Zohir Ihsan, Sany Izan
author_facet	Faris, Waleed Fekry BenLahcene, Zohir Ihsan, Sany Izan
author_sort	Faris, Waleed Fekry
title	Ride comfort assessment in off road vehicles using passive and semi-active suspension
title_short	Ride comfort assessment in off road vehicles using passive and semi-active suspension
title_full	Ride comfort assessment in off road vehicles using passive and semi-active suspension
title_fullStr	Ride comfort assessment in off road vehicles using passive and semi-active suspension
title_full_unstemmed	Ride comfort assessment in off road vehicles using passive and semi-active suspension
title_sort	ride comfort assessment in off road vehicles using passive and semi-active suspension
publishDate	2009
url	http://irep.iium.edu.my/14694/ http://irep.iium.edu.my/14694/1/Ride_Comfort_Assessment_in_Off_Road_Vehicles_using_passive_and_semi-active_suspension.pdf
first_indexed	2023-09-18T20:23:52Z
last_indexed	2023-09-18T20:23:52Z
_version_	1777408286570577920

Ride comfort assessment in off road vehicles using passive and semi-active suspension

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