Thermatics – Thermal Simulation Tool

The subsystems of vehicles are complex and are strongly coupled thermally.

The thermal behavior of each subsystem by itself in an isolated sub domain can be very different than when placed in the full vehicle environment and when subjected to the conditions of a transient drive cycle.

This poses a modeling challenge as modeling the full vehicle environment can be difficult to achieve in an acceptable timeframe and with reasonable computational resources using commercially available full order modeling (FOM) tools.

Why use Thermatics?

Simplifying complex models
Reducing Human and Computational Effort
Preservation of accuracy and fidelity of the physics

Strengths and benefits

  • Given the vehicle type, customer duty cycle, and the ambient conditions, Thermatics can be used to design & optimize the layout of thermal protection systems during all development stages and can therefore be used to shorten production cycles and reduce thermal protection costs.
  • It can serve as a fast, efficient, and accurate virtual testbed for thermal protection design iterations.
  • Can solve long duration transient simulations in a short time on a workstation.
  • Robust and accurate thermal solution procedure.
  • Well proven track record for over 5 years in major automotive OEMs’ production work.
  • Availability of support (e.g., extension, training, answering questions, etc.) at minimum cost as needed.

Targeted Model Order Reduction (TMOR)

  • Reduced Order Modeling (ROM) based tools can simulate a full transient driving cycle with the full vehicle environment modeled with feasible turnaround times and computational resources.
  • Most ROM based tools oversimplify and neglect important system details that strongly effect the behavior of the system and thus their accuracy is questionable.
  • Thermatics was developed to employ Targeted Model Order Reduction (TMOR) methods which maintains the accuracy level of FOM tools while achieving the speed and low computational cost of ROM based tools.
  • Using the finite volume method in its generic energy equation solver allows Thermatics to model systems in all dimensionalities from 0D to 3D.

Thermatics – Vehicle Applications

  • Predict the effect of exhaust heat on the thermal state of components
  • Predict the effect of aftertreatment system on components
  • Predict aftertreatment warmup time
  • Identification of heat shield requirements
  • Identification of insulation requirements






Special Models & Modules