Systems and methods to minimize exhaust system condensation
AssigneesCummins Inc., Tula Technology, Inc.
InventorsJ. Steven Kolhouse, David Schmidt, David J. Langenderfer
Life of this patent
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Abstract
A system including an exhaust aftertreatment system and a controller coupled to an engine and the exhaust aftertreatment system is provided. The controller is configured to: receive information including 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 environmental information and the temperature associated with the exhaust system; 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.
Claims20
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.
A method, comprising:
- receiving environmental information regarding a system comprising an engine coupled to an exhaust aftertreatment system;
- receiving information comprising at least one of environmental information or an operating information regarding the system;
- determining that a condensation state is present in the exhaust aftertreatment system based on information;
- and
- responsive to determining that the condensation state is present, commanding the engine to operate in a cylinder deactivation mode whereby at least one cylinder of a plurality of cylinders of the engine is deactivated.
A system, comprising:
- at least one processor;
- and
- at least one memory coupled to the at least one processor, the at least one memory storing instructions therein that, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
- receiving environmental information regarding the system;
- receiving information regarding a temperature associated with an exhaust aftertreatment system;
- determining a condensation temperature regarding the exhaust aftertreatment system based on at least one of an environmental information or the temperature regarding the exhaust aftertreatment system;
- comparing the temperature regarding the exhaust aftertreatment system to the condensation temperature;
- determining a firing density for a cylinder deactivation mode for an engine coupled to the exhaust aftertreatment system based on the comparison;
- and
- implementing the determined firing density with the engine during the cylinder deactivation mode.
Dependencies are inferred from the claim text.