US 12,071,885 B2
Increase aftertreatment temperature during light load operation
Travis Alva Anderson, Columbus, IN (US); Joan M. Wills, Nashville, IN (US); Rajkumar Subramanian, Columbus, IN (US); Vaibhav Daramwar, Columbus, IN (US); Pagalavan Mathari Bakthavatsalam, Columbus, IN (US); and Paul Daniel Borisuk, Nashville, IN (US)
Assigned to Cummins Inc., Columbus, IN (US)
Filed by CUMMINS INC., Columbus, IN (US)
Filed on May 24, 2023, as Appl. No. 18/201,262.
Application 18/201,262 is a continuation of application No. 17/966,620, filed on Oct. 14, 2022, granted, now 11,692,472.
Application 17/966,620 is a continuation of application No. 17/306,638, filed on May 3, 2021, granted, now 11,473,469, issued on Oct. 18, 2022.
Application 17/306,638 is a continuation of application No. 16/408,811, filed on May 10, 2019, granted, now 10,995,642, issued on May 4, 2021.
Application 16/408,811 is a continuation of application No. 15/416,695, filed on Jan. 26, 2017, granted, now 10,287,945, issued on May 14, 2019.
Prior Publication US 2023/0296041 A1, Sep. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F01N 3/20 (2006.01); F01N 9/00 (2006.01); F02B 37/18 (2006.01); F02D 9/04 (2006.01); F02D 41/02 (2006.01); F02D 41/14 (2006.01)
CPC F01N 3/2066 (2013.01) [F01N 9/00 (2013.01); F02B 37/18 (2013.01); F02D 9/04 (2013.01); F02D 41/024 (2013.01); F02D 41/1448 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1406 (2013.01); F02D 2700/04 (2013.01); Y02T 10/12 (2013.01); Y02T 10/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving an inlet temperature of a selective catalytic reduction system;
comparing the inlet temperature to a temperature setpoint; and
adjusting at least one of a first exhaust manifold pressure setpoint for a first cylinder bank of an engine or a second exhaust manifold pressure setpoint for a second cylinder bank of an engine, based on the comparison.