As it as been presented at our user conference ScilabTEC, Valeo is using Scilab for early stages pre-dimensionning of electronic systems, basing its approach on mathematical methodologies (modeling with thermal impedance).
Several tools / Several Teams
Mix Between several Tools:
Collaboration by several teams:
Transfer Function Extraction
Depending on the project status, different approaches are relevant:
Temperature environment and Injected power during CFD simulation or test shall be close to real configuration (linearization at operating conditions).
“0D” Model Construction
The Model chosen depends on the method used for temperature profiles calculation. Two options are possible:
Use of SPICE simulation needs to add a calculation step to define the equivalent RC networks with potential additional errors
Two models are always generated to identify amount or errors produced at each step (due to system linearization then to RC model generation).
Here is the expression of the mathematical “0D” model:
In the end the mathematical approach allows much faster modeling and processing, giving accurate results (see graph attached), appropriate for early stages decision strategies.