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Tires and vertical dynamics of wheeled mobile driving simulators

Zöller, Chris and Wagner, Paul and Winner, Hermann (2019):
Tires and vertical dynamics of wheeled mobile driving simulators.
In: Transportation research part F: traffic psychology and behaviour, Elsevier, pp. 69-83, 61, DOI: 10.1016/j.trf.2017.09.009, [Online-Edition: https://doi.org/10.1016/j.trf.2017.09.009],
[Article]

Abstract

Wheeled Mobile Driving Simulators (WMDS) promise a high potential for urban traffic simulation. The tires generate the accelerations of WMDS and therefore are a key compo- nent of this simulator type. Hence, the choice of a proper tire concept is of high importance. Solid tires with compact dimensions and a high vertical stiffness are a possible alternative approach to conventional pneumatic tires. To assess the application potential of solid tires their characteristics are identified. The results show that high slip values and slip angles are necessary to reach the maximum friction coefficient of about 0.8 while their correlation is highly nonlinear. With the identified tire properties, the impact of the tires on energy con- sumption and motion control performance of WMDS is investigated. The solid tires show an increased energy consumption of about 4% compared to pneumatic tires in representa- tive urban driving cycle simulations. Solid tires with their nonlinear characteristics lead to five times higher lateral acceleration errors in relation to pneumatic tires at accelerations of 5 m/s 2 during a horizontal eight maneuver. The vertical properties of both tires were identified to be not sufficient for the application of a WMDS solely sprung by tires on uneven grounds of common quality.

Item Type: Article
Erschienen: 2019
Creators: Zöller, Chris and Wagner, Paul and Winner, Hermann
Title: Tires and vertical dynamics of wheeled mobile driving simulators
Language: English
Abstract:

Wheeled Mobile Driving Simulators (WMDS) promise a high potential for urban traffic simulation. The tires generate the accelerations of WMDS and therefore are a key compo- nent of this simulator type. Hence, the choice of a proper tire concept is of high importance. Solid tires with compact dimensions and a high vertical stiffness are a possible alternative approach to conventional pneumatic tires. To assess the application potential of solid tires their characteristics are identified. The results show that high slip values and slip angles are necessary to reach the maximum friction coefficient of about 0.8 while their correlation is highly nonlinear. With the identified tire properties, the impact of the tires on energy con- sumption and motion control performance of WMDS is investigated. The solid tires show an increased energy consumption of about 4% compared to pneumatic tires in representa- tive urban driving cycle simulations. Solid tires with their nonlinear characteristics lead to five times higher lateral acceleration errors in relation to pneumatic tires at accelerations of 5 m/s 2 during a horizontal eight maneuver. The vertical properties of both tires were identified to be not sufficient for the application of a WMDS solely sprung by tires on uneven grounds of common quality.

Journal or Publication Title: Transportation research part F: traffic psychology and behaviour
Volume: 61
Publisher: Elsevier
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute of Automotive Engineering (FZD)
16 Department of Mechanical Engineering > Institute of Automotive Engineering (FZD) > Vehicle Dynamics
Date Deposited: 17 Apr 2019 05:23
DOI: 10.1016/j.trf.2017.09.009
Official URL: https://doi.org/10.1016/j.trf.2017.09.009
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