ASM Turbocharger simulates an exhaust gas turbocharger with variable turbine geometry (VTG) or wastegate.
Open MATLAB®/Simulink® model
Profit from project-specific adjustments
For ECU testing and function development
Re-use of simulation models and scenarios
Intuitive graphical parameterization
Easy simulation control and parameter set management
What is ASM Turbocharger?
The ASM Turbocharger Model simulates an exhaust gas turbocharger based on physical behavior and represents the key components of a real turbocharging system, including the compressor, turbine, and turbocharger shaft. Both variable turbine geometry (VTG) and wastegate turbochargers are supported.
The ASM Turbocharger Model is an alternative to the map-based turbocharger that is included in the ASM gasoline and diesel engine models. Compared to purely map-based models, ASM Turbocharger delivers significantly more realistic and dynamic simulation results. The physical calculation of turbine shaft speed enables precise modeling of turbocharger behavior and supports the development of modern ECUs equipped with turbine speed sensors.
This makes ASM Turbocharger the ideal solution for validating and testing advanced air path and turbocharger control strategies in both gasoline and diesel engine applications. Engineers benefit from higher model fidelity, enabling efficient development and optimization of complex ECU functions.
Typical Application Areas
- ECU development and testing: supports the development and validation of engine control units (ECUs) for turbocharged gasoline and diesel engines. The realistic simulation of turbine dynamics enables accurate testing of turbocharger control functions.
- Air path control development: enables the development and optimization of advanced air path control strategies, including:
- Boost pressure control
- VTG control
- Wastegate control
- Transient response optimization
- Turbine speed sensor validation: The physically based turbine shaft speed calculation makes ASM Turbocharger ideal for testing ECUs that use turbo speed sensors for monitoring and control.
- Calibration and function validation: supports calibration engineers in validating:
- Turbocharger efficiency
- Engine transient behavior
- Emission-related functions
- Fuel consumption optimization
Simulation Model Characteristics
The turbine model calculates the mass flow, the output temperature, and the resulting power output according to wastegate or VTG position. The compressor model calculates the boost pressure, the power consumption and the output temperature. The compressor and turbine are connected by a shaft, and the model provides the shaft speed.
How does ASM Turbocharger looks like?
Technical Details
Components and Characteristics
- Air path simulation with the precision of a physical model
- Contains models for compressor, turbine, and turbocharger shaft
- Simulation of single-stage or sequential two-stage turbocharger possible
- Wastegate valve and variable turbine geometry (VTG)
- Switching between map-based and the physical model
- Turbocharger state calculation based on common manufacturer maps including heat loss calculation
- Centrifugal compressor or positive displacement compressor (supercharger) simulation
- Parameterization and model can handle data in SAE J922 format
- An exemplary parameterization of the turbocharger is available for truck applications
Required Products
Support for ASM Users
Links to detailed technical information and customer service. Access may require registration.
