dSpace offers Diesel exhaust system simulation

dSpace offers Diesel exhaust system simulation The limits for nitrates in diesel engine emissions defined by international standards are becoming increasingly strict. Compliance with these limits requires electronic controls for catalytic converters. Selective catalytic reduction (SCR) systems that use urea injection (with AdBlue) are said to be an effective solution. Simulating the control algorithms plays a vital role in the development of these systems.

The dSpace ASM Diesel Exhaust Model, one of the Automotive Simulation Models (ASMs), provides a complete virtual diesel exhaust aftertreatment system. In addition to the submodel for urea injection (the SCR system), it includes further submodels for a diesel oxidation catalyst (DOC) and a diesel particle filter (DPF). The simulation model can be used throughout the development process, from controller design in Simulink to ECU testing on a dSpace simulator.

The vendor points out that users have complete access to all its Simulink blocks. They benefit from being able to view the modeled functions and adapt them to specific requirements themselves. The exhaust model's individual components (DOC, DPF, SCR) can be combined in different ways and optimally configured for the aftertreatment system under test.

The model can be used to represent the essential physical and chemical processes in modern aftertreatment systems: urea decomposition for catalytic reduction, fuel post-injections for catalytic oxidation, soot particle filtering and DPF regeneration. It contains AdBlue dosing systems with and without air supply and simulates temperature, pressure and lambda sensors.

For further information, please visit www.dspace.de

 

As featured in TES - The Electronic Supplier E-Zine, 2010 Vol 6, www.the-electronic-supplier.com/ezine/