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Joint LiU + TNO TU/e Course:
Modeling and Control of Aftertreatment Systems

Date: 2015-03-23 - 2015-03-25
Place: Linköping, Campus Valla, B-building, Visionen
Registration: Last day to register 2015-02-20.


This three day course will give an introduction to and fundamentals of modeling, simulation and model-based control design for aftertreatment systems. The aim is to give those who are interested in or work with aftertreatment systems and their simulation and control a common reference frame. The course will mix lectures with practical hands-on computer simulation exercises, and it is arranged with lectures in the morning and simulation exercises in the afternoon. There are three simulation modules; the first is on basic modeling, the second on system level modeling and the third on model based control design with validation on a complex catalyst system model.

Lecturers: Xander Seykens and Frank Willems

Xander Seykens is a technical specialist, at TNO Automotive, in engine and aftertreatment system modeling for controls. He has been involved in various industrial research projects on clean diesel technologies, especially EGR, DPF and urea SCR-deNOx.

Frank Willems is a technical specialist, at TNO Automotive, in diesel emission control. He has been involved in various industrial research projects on clean diesel technologies, especially EGR and urea SCR-deNOx.


Day 1: Monday 2015-03-23

09.30 - 10.15   Registration and Coffé
10.15 - 12.00   Lectures
Introduction with Overview of Diesel Aftertreatment Systems and their fundamental principles.
12.00 - 13.00 Lunch
13.00 - 15.00 Lectures
Basic principles and modeling for exhaust and catalyst systems.
Mass transfer, Arrhenius reaction rate models, Space velocity fundamentals, Thermal inertia.
15.00 - 21.00 Computer Exercises - Time for doing implementation exercises.
Build a first simple Simulation model for SCR reactions in Matlab/Simulink.
Around 17-18 there will be a break for dinner.

Day 2: Tuesday 2015-03-24

08.15 - 12.00   Lectures
Diesel urea deNOx system modeling
Urea decomposition and NH3 availability. NH3 slip oxidation in AMOx NO2/NOx variation.
Engine-Aftertreatment interactions:
BSFC-NOx trade off, Engine Thermal measures for deNOx performance
12.00- 13.00 Lunch
13.00 -17.00 Computer exercises
Build your own urea-deNOx model in Matlab/Simulink
Urea-deNOx simulation case study
17.00 -18.00 Dinner
18.00-21.00 Optional Labsession
Computer room available for continuing the modeling and simulation work.

Day 3: Wednesday 2015-03-25

08.15 - 12.00   Lectures
Model-based SCR dosing control: principles and design
SCR dosing controls, feedforward and feedback. NH3 Storage control.
Control calibration.
Outlook on integrated engine and aftertreatment control.
Thermal management, EGR-SCR balancing.
12.00- 13.00 Lunch
13.00 -17.00 Computer exercises
Develop model based controller from the previous days simulation.
Tune and validate the control on a complex simulation model: TNO SIMCAT
17.00-18.00 Dinner
18.00-21.00 Computer exercises (optional)
Opportunity to continue the modeling and simulation work.


Interwoven with the lectures there will be a sequence of computer exercises. These exercises are collected and described in a separate assignment booklet. The following tools are used and computer rooms are prepared with the software packages installed.
  • Matlab/Simulink.

Practical Information

During the course and included in the course fee are the following items

  • A printed paperback A4 version with all lecture slides.
  • A printed paperback A4 version of the assignments booklet.
  • Access to computer rooms and computers with Matlab/Simulink with SIMCAT are prepared for the participants to perform the exercises.
  • For participants lunch and dinner for the three days will be included.
  • Last day to register for the course is February 20, 2015
The course fee is 4000 SEK per attendee covering the lectures, rooms, and printed material etc as well as the items in the list above. The method of payment is through invoice.

To register for the course send an e-mail to Maria Hamner, clearly stating

  • name, e-mail, phone number
  • invoice address and necessary invoice information
  • if you have allergies or special needs for the lunches and dinners.

For more information about the course please contact Lars Eriksson.

Page responsible: Lars Eriksson
Last updated: 2015-05-01