Systems and methods for adjusting engine operating points based on emissions sensor feedback
AssigneeCummins Inc.
InventorsJennifer Kay Light-Holets, Xing Jin
Life of this patent
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Abstract
A system includes at least one sensor coupled to an aftertreatment system and a controller having at least one processor coupled to at least one memory device storing instructions that, when executed by the at least one processor, cause the controller to perform operations. The operations include: adjusting an operating point of an engine in response to emissions information from the at least one sensor and based on a fault indicator regarding a component of the system; and, controlling an electric motor in response to the adjustment of the operating point of the engine based on a change in power output from the engine to assist in a desired emissions characteristic.
Claims20
A system, comprising:
- at least one sensor coupled to an aftertreatment system;
- and
- a controller comprising at least one processor coupled to at least one memory device storing instructions that, when executed by the at least one processor, cause the controller to perform operations including:
- determining that an emissions level is at or above a predefined threshold based on received emissions information;
- adjusting an operating point of an engine in response to the emissions information from the at least one sensor indicating that the emissions level is at or above the predefined threshold and based on a fault indicator regarding a component of the system;
- and
- controlling an electric motor in response to the adjustment of the operating point of the engine based on a change in power output from the engine to assist in a desired emissions characteristic.
A system for a vehicle, the system comprising:
- a controller coupled to an electrified powertrain and to at least one sensor disposed in an exhaust aftertreatment system of the vehicle, the controller structured to:
- determine that an emissions level is at or above a predefined threshold based on received emissions information;
- adjust operation of an engine in response to the emissions information from the at least one sensor indicating that the emissions level is at or above the predefined threshold and based on a fault indicator regarding a component of the vehicle;
- and
- control an electric motor in response to the adjustment of the operation of the engine based on a change in operation of the engine to assist in a desired emissions characteristic.
A method, comprising:
- determining, by a controller, that an emissions level is at or above a predefined threshold based on received emissions information;
- adjusting, by the controller, an operating point of an engine in response to the emissions information from at least one sensor indicating that the emissions level is at or above the predefined threshold and based on a fault code regarding a component of a system having the engine;
- and
- controlling, by the controller, an electric motor in response to the adjustment of the operating point of the engine to compensate for a change in power output from the engine to assist in a desired emissions characteristic.
Dependencies are inferred from the claim text.