How well a single-track linear model captures the lateral dynamics of long combination vehicles
Journal article, 2019

The effect of centre-of-gravity heights on the high-speed performance measures of long combination vehicles including truck with double centre-axle trailers, Nordic, and A-double combination vehicles is investigated. The high fidelity three-dimensional models, used in this research, are validated against physical test data. These models are often effcient to the reality in terms of the actual dynamic behaviours of the vehicle systems. On the other hand, the simple yaw-plane single-track models with linear tires are very easy to construct and require less number of vehicle parameters. In this paper, it is investigated how accurate the estimations of performance measures are at high forward speeds by such single-track linear models which are incapable to differentiate between the different heights of payloads. The high-speed performance-based standard or PBS measures considered are rearward amplifications of both lateral acceleration and yaw velocity; lateral load transfer; yaw damping; and high-speed transient offtracking.

load transfer

Performance-based standards


model validation

yaw damping

rearward amplification


Manjurul Islam

Chalmers, Mechanics and Maritime Sciences (M2), Vehicle Engineering and Autonomous Systems

Vehicle Dynamics

Niklas Fröjd

Volvo Group

Sogol Kharrazi

The Swedish National Road and Transport Research Institute (VTI)

Bengt J H Jacobson

Vehicle Dynamics

Chalmers, Mechanics and Maritime Sciences (M2), Vehicle Engineering and Autonomous Systems

Vehicle System Dynamics

0042-3114 (ISSN) 1744-5159 (eISSN)

Vol. Published online: 09 Jan 2019 12 1874-1896

Performance Based Standards for High Capacity Transports in Sweden

VINNOVA (2013-03881), 2013-10-14 -- 2016-12-31.

Areas of Advance


Subject Categories

Vehicle Engineering



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