Patent ID: 11959410
Assignee: CUMMINS INC.
Field: Chemical engineering (Chemistry)
Classification: CPC F  B  Y | IPC B  F

Claim 14:
15. A system comprising:
an exhaust aftertreatment system comprising at least one diesel emissions fluid (DEF) doser; and
a controller coupled to the exhaust aftertreatment system, the controller structured to:
determine that the at least one DEF doser is likely frozen based on at least one of an ambient air temperature or a DEF source temperature;
in response to the determination that the at least one DEF doser is likely frozen, operate the engine in a cylinder cutout mode whereby a portion of a plurality of cylinders of the engine are fired, the portion of the plurality of cylinders being less than a total amount of cylinders of the plurality of cylinders; and
discontinue the cylinder cutout mode in response to determining that the at least one DEF doser is in a predefined condition.