ASM Diesel Exhaust System Model simulates the complete exhaust aftertreatment system of a diesel engine including DOC, DPF, and SCR.
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 Diesel Exhaust?
ASM Diesel Exhaust extends ASM Diesel Engine and ASM Diesel Engine InCylinder by providing flexible configurations for modern diesel exhaust aftertreatment systems. The model contains a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF), and a selective catalytic reduction (SCR) system. Its modular architecture enables individual exhaust components to be combined according to the specific aftertreatment setup under test, supporting efficient development and validation of emission control strategies.
Typical Application Areas
- ECU development and testing: development and validation of engine and aftertreatment control strategies for DOC, DPF, and SCR systems.
- Emission control strategy validation: investigation and optimization of NOx reduction, soot loading, DPF regeneration, and AdBlue/DEF dosing strategies.
- Sensor and diagnostic testing: simulation of typical sensor signals such as temperature, pressure, lambda, and NOx values for OBD and monitoring functions.
- Compliance and certification support: preparation and validation of solutions to meet fuel consumption targets and emission regulations such as Euro VI or EPA standards.
Simulation Model Characteristics
ASM Diesel Exhaust covers typical sensor variables for ECUs in DOC and DPF applications, such as temperatures, pressures and lambda values. These applications investigate the effects of soot trapped by filtering material and of DPF regeneration. The oxidation of post-injections and of fuel introduced by catalytic burners is also included in the model. With its solution for simulating common AdBlue and diesel exhaust fluid (DEF) dosing systems with and without air supply and its modeling concept for evaluating the urea decomposition and chemical process of the catalytic reduction, the ASM Diesel Exhaust System Model can be used as a basis for modeling today’s aftertreatment systems.
How does ASM Diesel Exhaust looks like?
Technical Details
Features DOC, DPF Models
- Pressure drop over DOC/DPF
- Temperature before and after DOC/DPF
- Lambda before and after DOC/DPF
- Particulate mass in DPF
- DPF regeneration by post-injection or additional injection
Features SCR Model
- Zero-dimensional approach
- Series connection of identical cells
- Number of cells represents the sectional discretization
- Outputs of one cell are inputs of the following cell
- AdBlue dosing system configurations with and without air supply are provided as demo models
- Urea decomposition upstream of the SCR catalyst
Required Products
Support for ASM Users
Links to detailed technical information and customer service. Access may require registration.
