Analytical Approaches for Fast Computing of the Thermal Load of Vehicle Cables of Arbitrary Length for the Application in Intelligent Fuses

Anika Henke, Stephan Frei

2021

Abstract

In modern intelligent vehicles, a huge number of components leads to complex cable harnesses with high reliability demands. Static connections protected by simple melting fuses are more and more replaced by intelligent power distribution and switching units. Thermal considerations play an important role with respect to reliability as thermal overload situations can lead to accelerated aging, damaged cables and finally to interruptions in the power supply. The calculation of the axial transient temperature distribution in cable structures is a complex task that is often solved numerically. In this paper, two analytical approaches to model the temperature of a single cable in air are presented, that are based on the use of Green’s functions in the time domain respectively Laplace domain. As sums appear, the convergence behavior is evaluated. The approaches are validated using a numerical reference solution. The influence of the cable length on the accuracy of the solutions is examined and complexity considerations are performed. An application example for intelligent vehicles is presented and discussed.

Paper Citation

in Harvard Style

Henke A. and Frei S. (2021). Analytical Approaches for Fast Computing of the Thermal Load of Vehicle Cables of Arbitrary Length for the Application in Intelligent Fuses. In Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems - Volume 1: VEHITS, ISBN 978-989-758-513-5, pages 396-404. DOI: 10.5220/0010433003960404

in Bibtex Style

@conference{vehits21,
author={Anika Henke and Stephan Frei},
title={Analytical Approaches for Fast Computing of the Thermal Load of Vehicle Cables of Arbitrary Length for the Application in Intelligent Fuses},
booktitle={Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems - Volume 1: VEHITS,},
year={2021},
pages={396-404},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010433003960404},
isbn={978-989-758-513-5},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems - Volume 1: VEHITS,
TI - Analytical Approaches for Fast Computing of the Thermal Load of Vehicle Cables of Arbitrary Length for the Application in Intelligent Fuses
SN - 978-989-758-513-5
AU - Henke A.
AU - Frei S.
PY - 2021
SP - 396
EP - 404
DO - 10.5220/0010433003960404