US 12,448,911 B2
Systems and methods to minimize exhaust system condensation
J. Steven Kolhouse, Columbus, IN (US); David Schmidt, Indianapolis, IN (US); and David J. Langenderfer, Columbus, IN (US)
Assigned to Cummins Inc., Columbus, IN (US); and Tula Technology, Inc, San Jose, CA (US)
Appl. No. 18/854,946
Filed by Cummins Inc., Columbus, IN (US); and Tula Technology, Inc., San Jose, CA (US)
PCT Filed Apr. 7, 2023, PCT No. PCT/US2023/017935
§ 371(c)(1), (2) Date Oct. 7, 2024,
PCT Pub. No. WO2023/196627, PCT Pub. Date Oct. 12, 2023.
Claims priority of provisional application 63/329,227, filed on Apr. 8, 2022.
Prior Publication US 2025/0250921 A1, Aug. 7, 2025
Int. Cl. F01N 9/00 (2006.01)
CPC F01N 9/00 (2013.01) [F01N 2900/08 (2013.01); F01N 2900/1602 (2013.01); F01N 2900/1628 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
an exhaust aftertreatment system; and
a controller coupled to an engine and the exhaust aftertreatment system, the controller configured to:
receive information comprising at least one of environmental information or operating information regarding the system;
determine that a condensation state is present in the exhaust aftertreatment system based on the information; and
responsive to determining that the condensation state is present, command the engine to operate in a cylinder deactivation mode whereby at least one cylinder of a plurality of cylinders of the engine is deactivated.