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    Hierarchical engine control systems and methods
    12.
    发明授权
    Hierarchical engine control systems and methods 有权

    公开(公告)号：US11053881B2

    公开(公告)日：2021-07-06

    申请号：US15762469

    申请日：2015-10-14

    Applicant: CUMMINS INC.

    Inventor： Phanindra V. Garimella ,  Paul V. Moonjelly ,  Edmund P. Hodzen ,  Ming-feng Hsieh ,  Gayatri Adi ,  Gokul Vishwanathan

    IPC: F02D41/24 ,  F02D41/14 ,  F02D41/38 ,  F02D41/40 ,  F02D41/00 ,  F02D35/02

    Abstract: A system for control of an internal combustion system having subsystems, each with different response times. Subsystems may include a fuel system, an air handling system, and an aftertreatment system, each being operated in response to a set of reference values generated by a respective target determiner. Calibration of each subsystem may be performed independently. The fuel system is controlled at a first time constant. The air handling system is controlled on the order of a second time constant slower than the first time constant. The aftertreatment system is controlled on the order of a third time constant slower than the second time constant. A subsystem manager is optionally in operative communication with each target determiner to coordinate control. Generally, dynamic parameters from slower subsystems are treated as static parameters when determining reference values for controlling a faster subsystem.

    SYSTEMS AND METHODS FOR OPTIMIZING ENGINE-AFTERTREATMENT SYSTEM OPERATION
    14.
    发明申请
    SYSTEMS AND METHODS FOR OPTIMIZING ENGINE-AFTERTREATMENT SYSTEM OPERATION 审中-公开

    公开(公告)号：US20200040795A1

    公开(公告)日：2020-02-06

    申请号：US16492236

    申请日：2018-03-02

    Applicant: Cummins Inc.

    Inventor： Gayatri Adi ,  Kartavya Neema ,  Paul V. Moonjelly ,  Karla Carale Stricker Fuhs ,  Chinmay Rao

    IPC: F01N9/00 ,  F02D41/02 ,  F02D41/00

    Abstract: Systems and methods for optimizing a performance variable for an engine system. The method includes applying constraints of manipulated variables as well as performance variables, mechanical constraints and other engine responses to response models. The response models each represent a piecewise linear relationship between the manipulated variables and other engine responses including performance variables and constraints. The method also comprises determining an optimal target for each of the manipulated variables by using a quasi-simplex optimization process on the response models. The optimal targets of the manipulated variables correspond to an optimal value of the performance variable.

    ENGINE CONTROLS INCLUDING DIRECT TARGETING OF IN-CYLINDER [O2]
    15.
    发明申请
    ENGINE CONTROLS INCLUDING DIRECT TARGETING OF IN-CYLINDER [O2] 审中-公开

    公开(公告)号：US20200025121A1

    公开(公告)日：2020-01-23

    申请号：US16587143

    申请日：2019-09-30

    Applicant: Cummins Inc.

    Inventor： Quresh Sutarwala ,  Gayatri Adi ,  Paul V. Moonjelly

    IPC: F02D41/02 ,  F02D41/14

    Abstract: Unique engine controls and apparatuses, methods and systems relating to the same are disclosed. One embodiment is method which utilizes an in-cylinder [O2] mass fraction model to generate exhaust gas recirculation (EGR) fraction references for both transient and steady state operating conditions. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.

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