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    Inverter-based exhaust aftertreatment thermal management apparatuses, methods, systems, and techniques
    62.
    发明授权
    Inverter-based exhaust aftertreatment thermal management apparatuses, methods, systems, and techniques 有权

    公开(公告)号：US11952930B2

    公开(公告)日：2024-04-09

    申请号：US17169898

    申请日：2021-02-08

    Applicant: Cummins Inc.

    Inventor： Subbarao Dakshina Murthy Bellur ,  Thomas A. Dollmeyer ,  Jennifer Rumsey ,  Bradford K. Palmer

    IPC: F01N3/00 ,  F01N3/027 ,  F01N3/20 ,  F01N9/00

    CPC classification number: F01N3/027 ,  F01N3/2013 ,  F01N9/002 ,  F01N2250/02

    Abstract: One exemplary embodiment is a vehicle system comprising an engine, an exhaust aftertreatment system including a heating element, an electric machine configured to selectably operate as a motor or a generator, an inverter module including a plurality of inverter phase legs and an auxiliary leg, and an electronic control system in operative communication with the inverter module and the exhaust aftertreatment system. The electronic control system is configured to evaluate whether the electric machine is operating as a generator, selectably operate the plurality of inverter phase legs to rectify AC power received from the electric machine, evaluate whether to heat one or more components of the exhaust aftertreatment system, and selectably operate the auxiliary leg to provide rectified power from the inverter legs to one or more electrical heating elements thermally coupled with the one or more components exhaust aftertreatment system effective to heat the one or more components.

    METHODS AND SYSTEMS FOR CONTROLLING MULTIPLE ELECTRIC AXLES
    63.
    发明公开
    METHODS AND SYSTEMS FOR CONTROLLING MULTIPLE ELECTRIC AXLES 审中-公开

    公开(公告)号：US20240109423A1

    公开(公告)日：2024-04-04

    申请号：US18274432

    申请日：2021-02-17

    Applicant: Cummins Inc.

    Inventor： Vivek Anand Sujan ,  Jenni Lyn Muncie-Sujan

    IPC: B60L3/10 ,  B60L15/20

    CPC classification number: B60L3/102 ,  B60L3/106 ,  B60L15/2036 ,  B60L15/2045 ,  B60L2220/42 ,  B60L2240/26 ,  B60L2240/423 ,  B60L2240/642

    Abstract: A system for controlling a plurality of electric axles of a vehicle is disclosed, comprising: the plurality of electric axles, one or more motor generators associated with one or more of the plurality of electric axles, and a multi-axle controller communicatively coupled to the one or more motor generators and configured to execute software to cause the multi-axle controller to: determine a power demand of the vehicle based at least in part on one or more parameters of each electric axle and current and/or future road grade; generate a performance cost function associated with one or more performance metrics, the power demand, and/or the vehicle information; determine a power distribution among the plurality of electric axles by optimizing the performance cost function; and transmit a traction command to the one or more motor generators to control the operation of the plurality of electric axles.

    SYSTEMS AND METHODS FOR DIAGNOSING COMPONENT FAILURE
    67.
    发明公开
    SYSTEMS AND METHODS FOR DIAGNOSING COMPONENT FAILURE 审中-公开

    公开(公告)号：US20240077010A1

    公开(公告)日：2024-03-07

    申请号：US18236577

    申请日：2023-08-22

    Applicant: Cummins Inc.

    Inventor： Haifeng Shi ,  Yang Z. Zhou ,  Chengxiu Huang

    IPC: F01N11/00 ,  F01N3/20 ,  F02D41/02

    CPC classification number: F01N11/002 ,  F01N3/2066 ,  F02D41/0235 ,  F01N2610/1453 ,  F02D2200/08

    Abstract: Systems and methods for diagnosing at least one component in an exhaust aftertreatment system are provided. The system includes an exhaust aftertreatment system coupled to an engine system, at least one sensor, and at least one processing circuit structured to: receive initial sensor data; determine an initial parameter value based on the initial sensor data; determine that the initial parameter does not satisfy an initial threshold; perform operations to diagnose at least one component of the exhaust aftertreatment system comprising: causing the engine system to operate through a sequence of a plurality of engine outputs; receiving a plurality of sensor data, each of the plurality sensor data corresponding to at least one of the plurality of engine outputs; comparing each of the plurality of sensor data to a corresponding threshold; and diagnosing the at least one component based on the comparison.

    Fuel system management during cylinder deactivation operation
    70.
    发明授权
    Fuel system management during cylinder deactivation operation 有权

    公开(公告)号：US11905908B2

    公开(公告)日：2024-02-20

    申请号：US17498003

    申请日：2021-10-11

    Applicant: Cummins Inc.

    Inventor： Ross A. Phillips ,  Donald J. Benson ,  J. Steven Kolhouse ,  Avra Brahma

    IPC: F02D41/38 ,  F02D41/00

    CPC classification number: F02D41/3845 ,  F02D41/0087 ,  F02D2200/0602

    Abstract: A method for operating an engine fueling system to manage fuel in an accumulator supplying fuel to an engine including multiple cylinders comprising monitoring fuel load in the accumulator, determining that the engine is operating in a cylinder deactivation mode such as a skip-fire mode during which one or more fueling events to one or more of the cylinders is being skipped, and controlling a supply of fuel from a fuel pump to the accumulator during the cylinder deactivation mode operation. In embodiments, controlling the supply of fuel includes causing fuel to be supplied from the fuel pump to the accumulator if the monitored fuel load is less than or equal to a first fuel load, and causing fuel to be not supplied from the fuel pump to the accumulator if the monitored fuel load is greater than the first load value. Controlling the supply of fuel may comprise controlling the supply of fuel during each fueling event cycle of each deactivated cylinder.

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