Development of Transient Thermal Models Based on Theoretical Analysis and Vehicle Test Data

Paper #:
  • 2014-01-0726

Published:
  • 2014-04-01
Citation:
El-Sharkawy, A. and Uddin, A., "Development of Transient Thermal Models Based on Theoretical Analysis and Vehicle Test Data," SAE Int. J. Passeng. Cars - Mech. Syst. 7(1):188-195, 2014, https://doi.org/10.4271/2014-01-0726.
Pages:
8
Abstract:
In this paper, thermal models are developed based on experimental test data, and the physics of thermal systems. If experimental data is available, the data can be fitted to mathematical models that represent the system response to changes in its input parameters. Therefore, empirical models which are based on test data are developed. The concept of time constant is presented and applied to development of transient models. Mathematical models for component temperature changes during transient vehicle driving conditions are also presented. Mathematical models for climate control system warm up and cool-down are also discussed. The results show the significance of adopting this concept in analysis of vehicle test data, and in development of analytical models. The developed models can be applied to simulate the system or component response to variety of changes in input parameters. As a result, significant testing and simulation time can be saved during the vehicle development process.
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