Control, MiL, SiL, and HiL Simulation

GT-SUITE is the ideal modeling platform for carrying out controls system modeling, virtual controls calibration and validation in Model in the Loop (MiL), Software in the Loop (SiL), and Hardware in the Loop (HiL) environments


GT-SUITE can be supplied as an external model via Simulink S-function and/or FMI standard.  This way GT models are easily integrated into Simulink control system models for desktop simulation.  GT-SUITE supports both running as the Lead and as the Follower software with controls or other CAE modeling tools.

For moving to HiL based environments, GT models are quickly and semi-automatically converted to real time capable fast running or reduced order models (FRM, ROM), and ported to popular HiL systems.

To run physical, predictive engine models on a HiL system, GT offers GT-POWER-xRT, a solution dedicated to the current and future requirements of high-speed ECUs.

Using the same governing equations as GT-POWER, GT-POWER-xRT has been tailored specifically for the needs of ECU calibration and testing, providing unparalleled execution speed, thus allowing for increased model complexity on the test bench. Advanced control strategies, such as combustion control, can now be tested with a detailed physical engine model at significantly faster computation speeds with minimum effort and maximum accuracy, predictiveness, and fidelity.

Under the same principle, GT-SUITE-RT can support non-engine applications such as electric vehicle applications (EV), Thermal management simulation, Battery management simulations for controls calibration or aftertreatment real-time simulation for real driving emissions prediction.


  • Incorporate physical GT-SUITE models directly into the control system development process
  • Transform your computer into a virtual engine test bench with GT-POWER engine models running on your PC
  • Perform model-based calibration of software functions using industry-standard calibration tools such as INCA via A2L files and XCP Protocol
  • Speed up your process by re-using existing simulation models from the CAE group or vendors
  • Supports MiL, SiL efforts in Simulink, ASCET or via FMI standard
  • Supports HiL systems, including systems from ETAS, dSPACE, National Instruments, Mathworks, Concurrent, Vector, MicroNova, and more

Advanced Features

  • Perform sensitivity analysis by modifying the GT-SUITE model parameters from your development environment
  • Model debugging capability through optional logging even on the HiL system
  • Modify entire plant model maps from the Controls environment
  • Display simulation results in GT-POST for MiL, SiL projects
  • Allowing easy transfer of ECU signals inside the GT-SUITE environment
  • Support of multi-core HiL systems
  • Quick case sweeps for Hardware in the Loop (HiL) testing accelerating software and hardware validation

Ready to learn more about GT’s simulation capabilities?

Reach out to us with questions about our technology or to discuss your current simulation needs.

Learn more about Control, MiL, SiL, and HiLECU TESTING & CALIBRATION

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Ready to learn more about GT’s simulation capabilities?

Reach out to us with questions about our technology or to discuss your current simulation needs.