CPC F01N 3/208 (2013.01) [F01N 9/00 (2013.01); B01D 53/9418 (2013.01); F01N 2610/02 (2013.01); F01N 2610/146 (2013.01); F01N 2610/1453 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1406 (2013.01); F01N 2900/1411 (2013.01); F01N 2900/1808 (2013.01); F01N 2900/1811 (2013.01); F01N 2900/1821 (2013.01); F01N 2900/1824 (2013.01); Y02T 10/12 (2013.01)] | 23 Claims |
21. A system comprising:
a reductant injection system for injecting reductant into an exhaust gas based on an injection parameter or a supply parameter; and
a controller configured to:
access a current exhaust gas condition parameter, a current vehicle condition parameter which comprises at least one of a vehicle speed, a vehicle tire pressure, a vehicle inclination angle, a vehicle drive gear selection, a vehicle mass, a vehicle weight, a vehicle trailer weight, or a vehicle air line pressure, and a current reductant condition parameter which comprises at least one of a reductant temperature, reductant momentum based on an injection supply pressure, a reductant density, a reductant air supply pressure, a reductant air supply flow rate, or a reductant spray cone angle,
determine one or more control parameters based on a control model and as a function of the accessed current exhaust gas condition parameter, the accessed current vehicle condition parameter, and the accessed current reductant condition parameter, and
modify a value of the injection parameter or the supply parameter based on the one or more control parameters to control a reductant spray momentum, a reductant droplet momentum, or a reductant momentum vector from the reductant injection system so as to provide a target spray droplet distribution or a target spray distribution.
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