Identification of a multivariable linear model for road vehicle (bus) dynamics from test data. (5th August 2014)

• Record Type: Journal Article
• Authors: Michelberger, P.; Bokor, J.; Keresztes, A.; Varlaki, P.
• Is Part Of: International journal of vehicle design. Volume 8:Number 1(1987)
• Page Start: 96
• Page End: 114
• Publication Date: 2014-08-05
• Subjects: vehicle dynamics -- multivariable modelling -- identification -- bus suspension -- vehicle noise -- speed levels -- road profile excitation -- bus dynamics -- buses -- heavy vehicles -- vehicle design -- linear modelling -- commercial vehicles; Motor vehicles -- Design and construction -- Periodicals; 629.231
• Languages: English
• ISSNs: 0143-3369

Abstract

The paper deals with the identification of a multivariable linear model for commercial road vehicles from the measured stress response arising in given structural elements due to stochastic road profile excitation. A special representation of the system transfer matrix is used as a model which makes possible the direct identification of the poles and the estimation of the number of natural frequencies. The parameters in the system and output noise model are estimated by the maximum likelihood method. The measurements were carried out on a laminated spring suspension bus. Models of the vehicle were identified for various speed levels and variances of road profile excitation process.