SYSTEMS AND METHODS FOR CONDITIONING AN AFTERTREATMENT SYSTEM USING AN ELECTRIC MACHINE TO DRIVE A COMBUSTION ENGINE

    公开(公告)号:US20230082857A1

    公开(公告)日:2023-03-16

    申请号:US17790411

    申请日:2021-01-29

    Applicant: Cummins Inc.

    Abstract: Systems and methods for conditioning an aftertreatment system. For example, a computer-implemented method for conditioning an aftertreatment system of a hybrid system including an electric motor and a combustion engine includes: determining whether the aftertreatment system is in a first temperature zone below a first temperature threshold; determining whether a power demand corresponding to the operation of the hybrid system is in a first power demand zone below a power threshold; and if the aftertreatment system is determined to be in the first temperature zone and the power demand of the hybrid system is determined to be in the first power demand zone, setting the hybrid system to compressor mode to heat the aftertreatment system.

    SYSTEMS AND METHODS FOR ADJUSTING ENGINE OPERATING POINTS BASED ON EMISSIONS SENSOR FEEDBACK

    公开(公告)号:US20230018724A1

    公开(公告)日:2023-01-19

    申请号:US17947432

    申请日:2022-09-19

    Applicant: Cummins Inc.

    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.

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