Method to Improve the detection of NH3 slip condition during transient maneuver

摘要

Current Diesel vehicles are equipped with a very robust aftertreatment system. Among several devices, SCR (Selective Reduction catalyst) system is used to reduce NOx present in the exhaust gas. Such emissions are coming from diese) internal combustion under all engine operating conditions and over the Full Useful Life (FUL) of the vehicle. NOx reduction is performed while minimizing tailpipe NOx breakthrough and ammonia (NH3) slip.