Patent ID: 11970991
Assignee: CUMMINS INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 6:
7. A system comprising:
a controller coupled to an aftertreatment system, the controller configured to:
initiate a low engine-out NOx (LEON) mode by controlling a component of a vehicle having the aftertreatment system to decrease an instantaneous engine-out NOx (EONOx) amount;
compare a temperature of the aftertreatment system during the LEON mode to a warm-operation threshold temperature;
responsive to determining that the temperature of the aftertreatment system exceeds the warm-operation threshold temperature, disengage the LEON mode;
responsive to determining that the temperature of the aftertreatment system is below the warm-up operation threshold temperature, compare information indicative of an operating status of the vehicle to a LEON exit threshold, wherein the information indicative of the operation status of the vehicle during the LEON mode comprises an amount of soot build-up on a particulate filter of the aftertreatment system and the LEON exit threshold comprises a soot build-up threshold; and
disengage the LEON mode responsive to determining that the information indicative of the operating status of the vehicle during the LEON mode exceeds the LEON exit threshold.