Determination of temperature in automotive high-voltage cables of finite length with dynamic current profiles

Florian Loos, Karl Dvorsky and Hans-Dieter Liess

Mathematical and Computer Modelling of Dynamical Systems, 2014, vol. 20, issue 5, 433-451

Abstract: To avoid overheating of essential components and generation of hot spots in modern vehicles, especially hybrid and electrical cars, cables have to be dimensioned correctly. Dynamic current profiles with high peak currents make an adequate dimensioning difficult. We present a new approach to calculate the temperature distribution in current carrying shielded cables under non-constant current loads. The influence of attached materials is respected as well as different environment conditions. The specific modelling equations entail a distinction of cases, depending on the magnitude of current loads. Moreover, simulation and measurement results are compared and show good accordance. Further advantages concerning calculation times and industrial practicability are presented.

Date: 2014
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DOI: 10.1080/13873954.2013.833120

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