Predictive control of ammonia storage in a selective catalytic reduction device using connectivity information

A method for operating a selective catalytic reduction (SCR) device configured in an engine exhaust aftertreatment system of a vehicle, the method comprising:

• monitoring vehicle connectivity information;
• predicting vehicle operating conditions comprising estimating a vehicle travel path based on the monitored vehicle connectivity information, the predicted vehicle operating conditions further comprising a predicted engine speed and a predicted load along the estimated vehicle travel path;
• predicting profiles for exhaust gas parameters based on the predicted vehicle operating conditions, the predicted profiles for the exhaust gas parameters comprising SCR inlet temperature (Tinlet), SCR inlet NOx levels (NOXinlet), SCR inlet exhaust gas mass flow rate ({dot over (m)}ex), and SCR inlet oxygen level (O2inlet) for the estimated vehicle travel path;
• determining ammonia storage setpoints based on the predicted profiles for the vehicle exhaust gas parameters;
• and
• controlling storage of ammonia in the SCR device based on the determined ammonia storage setpoints.

A method for controlling operation of a selective catalytic reduction (SCR) device in an engine exhaust aftertreatment system of a vehicle, the method comprising:

• monitoring vehicle connectivity information;
• predicting vehicle operating conditions comprising estimating a vehicle travel path based on the monitored vehicle connectivity information, said predicted vehicle operating conditions comprising a predicted engine speed and a predicted load along the estimated vehicle travel path;
• predicting profiles for exhaust gas parameters based on the predicted vehicle operating conditions, the predicted profiles for the exhaust gas parameters comprising SCR inlet temperature (Tinlet), SCR inlet NOx levels (NOXinlet), SCR inlet exhaust gas mass flow rate ({dot over (m)}ex), and SCR inlet oxygen level (O2inlet) as a function of time for the estimated vehicle travel path;
• and
• controlling storage of ammonia in the SCR device based on the predicted profiles for the exhaust gas parameters.