Bin Raja Ahsan Shah, Raja Mazuir, Cheng, Caizhen, Jones, R. Peter and Pawar, Jasjit (2012) Shuffle frequency migration of 4WD vehicle. In: Regional Conference on Automotive Research, Kuala Lumpur, Malaysia, 14-15 Dec 2011 (No.P023).

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Abstract

This paper explains the method to examine the driveability of Four Wheels Drive vehicle.
One of key elements to assess the vehicle driveability is to expose the vehicle under harsh driving conditions such as feeding the crankshaft with wide open throttle torque within a short period of time. As a result of this abrupt torque excitation, the vehicle is expected to generate low frequency responses and deliver discomfort feelings induced by resonance effects on sensitive human organs.
Understanding the interaction across vehicle component levels is imperative to address the root cause of driveability issues. Frequency migration analysis was carried out to determine the prevailing factors and sub-system components that control this occurrence. Matrices consisting of a range of frequencies have been structured and analysed to precisely pinpoint the sensitivity of
vehicle shuffle frequency migration based on different operating modes

Item Type:	Conference Item (Paper)
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions:	Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH):	Four-wheel drive vehicles -- Dynamics, Four-wheel drive vehicles -- Vibration
Official Date:	2012
Dates:	Date Event 2012 ["eprint_fieldopt_dates_date_type_available" not defined]
Number:	No.P023
Status:	Peer Reviewed
Publication Status:	Published
Conference Paper Type:	Paper
Title of Event:	Regional Conference on Automotive Research
Type of Event:	Conference
Location of Event:	Kuala Lumpur, Malaysia
Date(s) of Event:	14-15 Dec 2011
References:	[1] B. Atsumi, H. Tokunaga, H. Kanamori, T. Sugawara, E. Yasuda, H. Inagaki: Evaluation of Vehicle Motion Sickness due to Vehicle Vibration, JSAE Review, Vol. 23(3), p. 341- 346. (2002) [2] J. Pawar: Low Frequency Powertrain and Vehicle System Dynamic, Eng.D Thesis, University of Warwick, Coventry, United Kingdom (2009) [3] Information on http://www.3ds.com/products/catia/portfolio/dymola [retrieved in July 2011] [4] R.M.R.A. Shah, G. Dhadyalla, P. Jones, J. Pawar, S. Biggs, C. Cheng: A Low Fidelity Non Linear Model of 4WD Torsional Stiffness at Tip-In/Tip-out, Proceedings of FISITA 2010 World Automotive Congress, Budapest, Hungary, F2010C137 (2010) [5] R.M.R.A. Shah, C. Cheng, R.P. Jones, J. Pawar: Modelling of 4WD Vehicle Driveability During Tip-In/Tip-Out Events, Proceedings of 22nd International Symposium on Dynamics of Vehicle on Road and Tracks (IAVSD), Manchester, United Kingdom, 0085 (2011)
URI:	http://wrap.warwick.ac.uk/id/eprint/51653

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