Methods of calibration for different functions of a SCR system

The goal of this research is to try and compare different methods of calibration in order to tune the parameters of the pumping and tank heater monitoring functions of the AdBlue Delivery Module of a Selective Catalytic Reduction (SCR) system. The goal of the SCR system is to reduce the emission of NOx gases, which are considered as green-house gases.
 
In a first step, while calibrating the parameters of the pumping function, a real-time calibration method has been used.The advantage in this process is that a detailed model of the system is not needed to tune it. Then, the tank heater monitoring function has been calibrated through simulations. The understanding of the system is better in this case, which could help tuning it more effectively.

The results shows that both methods should ensure the proper functioning of the system. However, the parameters found in this study could not be totally approved without being tested on vehicle, in real-life conditions. Moreover, as the priority is to avoid the malfunction of the system, the chosen parameters might not be the optimal ones in terms of performance. With these two methods, most of the systems could be calibrated. The choice of the method should be done according to the initial level of knowledge of the object of study.