Developing a Vehicle Dynamic Model for Analyzing the Impact of Roadway and Vehicle Characteristics on Speed Profiles
Publication: International Conference on Transportation and Development 2024
ABSTRACT
This study delves into the dynamic model of heavy vehicle motion on steep road gradients, employing a semi-empirical method to unravel the intricate interplay of various factors on vehicle performance. Guided by the principles of Newton’s second law, the model takes into account forces acting along the longitudinal, lateral, and vertical axes, incorporating critical elements such as road geometry, surface friction, and vehicle characteristics. The propulsive force, rolling resistance, aerodynamic drag, and grade resistance are examined as pivotal forces. The developed MATLAB program serves as a tool to assess the impact of key variables, including weight-to-power ratio, engine power, road conditions, truck type, and tire type, on heavy vehicle performance. Weight-to-power ratio emerges as a primary influencer, while road conditions and tire type exhibit minimal effects. This study provides valuable insights into the analysis of heavy vehicle behavior on steep upgrade sections of highways, contributing to a broader understanding of truck performance dynamics.
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Published In
International Conference on Transportation and Development 2024
Pages: 726 - 738
History
Published online: Jun 13, 2024
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