US 12,448,908 B2
Aftertreatment heat up strategies
James E. Mccarthy, Jr., Kalamazoo, MI (US)
Assigned to EATON INTELLIGENT POWER LIMITED, Dublin (IE)
Appl. No. 18/717,583
Filed by Eaton Intelligent Power Limited, Dublin (IE)
PCT Filed Dec. 8, 2022, PCT No. PCT/EP2022/025561
§ 371(c)(1), (2) Date Jun. 7, 2024,
PCT Pub. No. WO2023/104339, PCT Pub. Date Jun. 15, 2023.
Claims priority of provisional application 63/287,156, filed on Dec. 8, 2021.
Claims priority of provisional application 63/287,498, filed on Dec. 8, 2021.
Prior Publication US 2025/0052180 A1, Feb. 13, 2025
Int. Cl. F01N 3/20 (2006.01); F01N 11/00 (2006.01); F02D 13/02 (2006.01)
CPC F01N 3/2013 (2013.01) [F01N 3/2066 (2013.01); F01N 11/005 (2013.01); F01N 2240/16 (2013.01); F01N 2410/06 (2013.01); F01N 2430/10 (2013.01); F01N 2560/06 (2013.01); F01N 2560/07 (2013.01); F01N 2590/11 (2013.01); F01N 2900/0416 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1602 (2013.01); F02D 13/0203 (2013.01); F02D 13/0261 (2013.01); F02D 13/0265 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of controlling temperature of an engine aftertreatment system, comprising:
directing an exhaust heating device in an engine aftertreatment system to apply heat to the engine aftertreatment system;
opening at least one of one or more intake valves and one or more exhaust valves of an engine coupled to the engine aftertreatment system; and
pulsing, by an engine starter of the engine, the engine on and off to generate airflow from the engine that moves the applied heat from the exhaust heating device downstream the engine aftertreatment system.