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    INJECTION TIMING MANAGEMENT IN DUAL FUEL ENGINE SYSTEM
    1.
    发明申请
    INJECTION TIMING MANAGEMENT IN DUAL FUEL ENGINE SYSTEM 有权
    双燃料发动机系统注油时间管理

    公开(公告)号：US20140290623A1

    公开(公告)日：2014-10-02

    申请号：US13854293

    申请日：2013-04-01

    Applicant: CATERPILLAR INC.

    Inventor： Arvind Sivasubramanian ,  David J. Lin ,  Keith A. Intveld ,  Jeffrey A. Howard ,  Christopher F. Gallmeyer

    IPC: F02D41/40

    CPC classification number: F02D41/401 ,  F02D19/0613 ,  F02D19/0615 ,  F02D41/0025 ,  F02D41/3064 ,  F02D2200/604 ,  Y02T10/36 ,  Y02T10/44

    Abstract: A fuel injection timing management system for a dual fuel engine is configured to determine a first diesel injection timing corresponding to a first mode of operation of the engine system and a second diesel injection timing corresponding to a second mode of operation. Further, determine a direction of change in a mode of operation of the engine system, and selectively perform a change in the diesel injection timing from the first diesel injection timing to the second diesel injection timing at a first rate of transition or a second rate of transition, based on the direction of change in a mode of operation of the engine system.

    Abstract translation: 用于双燃料发动机的燃料喷射定时管理系统被配置为确定对应于发动机系统的第一操作模式的第一柴油喷射正时和对应于第二操作模式的第二柴油喷射定时。 此外，确定发动机系统的操作模式的变化方向，并且以第一转换速率或第二速率选择性地执行从第一柴油喷射正时到第二柴油喷射正时的柴油喷射正时的变化 基于发动机系统的操作模式的变化方向进行转换。

    SYSTEMS AND METHODS FOR IDENTIFYING MACHINE ANOMALY ROOT CAUSE
    2.
    发明公开
    SYSTEMS AND METHODS FOR IDENTIFYING MACHINE ANOMALY ROOT CAUSE 审中-公开

    公开(公告)号：US20230168961A1

    公开(公告)日：2023-06-01

    申请号：US17539011

    申请日：2021-11-30

    Applicant: Caterpillar Inc.

    Inventor： David J. Lin ,  Tyler P. Jewell ,  Daniel J. Organ ,  Vivek Sundararaj ,  Vijay K. Yalamanchili ,  Chanyoung Park ,  William Kent Rutan ,  Kaimei Sun

    IPC: G06F11/07

    CPC classification number: G06F11/079 ,  G06F11/0736

    Abstract: A method for identifying a cause of a machine operating anomaly including creating a reduced order model (ROMs) for a digital twin model of a selected machine type and feeding current data from a deployed machine into the ROM. The method can include comparing a current output from the selected ROM with a measured output from the current data and determining that an operating anomaly exists when the difference between the current output and the measured output exceeds a selected anomaly threshold. The cause of the operating anomaly can be identified by feeding the current data into a plurality of fault models, wherein each fault model includes a particular component failure, comparing a fault model output from each of the plurality of fault models with the measured output from the current data, selecting the fault model with the fault model output most closely matching the measured output, and displaying the identified component failure associated with the selected fault model as the cause of the operating anomaly.

    Failure detection device for detecting an issue with a part of a machine
    4.
    发明授权
    Failure detection device for detecting an issue with a part of a machine 有权

    公开(公告)号：US10760995B2

    公开(公告)日：2020-09-01

    申请号：US16566136

    申请日：2019-09-10

    Applicant: Caterpillar Inc.

    Inventor： Andrew Billing ,  Kurt Hopf ,  David J. Lin ,  Michael Campagna

    IPC: G01M15/00 ,  G01M15/14 ,  G01M15/10 ,  G08B21/18

    Abstract: A failure detection device is disclosed. The failure detection device may receive operations data related to operations of a set of parts of a machine. The failure detection device may process the operations data using a condition-based processing technique. The condition-based processing technique may be associated with mapping initial values of data elements of the operations data to binary values based on satisfaction of a first set of conditions by the initial values. The failure detection device may detect a presence of a possible issue with the operations of the set of parts based on a second set of conditions, associated with the binary values and the initial values, being satisfied during a time period. The failure detection device may perform, after detecting the presence of the possible issue, a set of actions related to addressing the possible issue.

    FAILURE DETECTION DEVICE FOR DETECTING AN ISSUE WITH A PART OF A MACHINE
    5.
    发明申请
    FAILURE DETECTION DEVICE FOR DETECTING AN ISSUE WITH A PART OF A MACHINE 审中-公开

    公开(公告)号：US20200225118A1

    公开(公告)日：2020-07-16

    申请号：US16566136

    申请日：2019-09-10

    Applicant: Caterpillar Inc.

    Inventor： Andrew Billing ,  Kurt Hopf ,  David J. Lin ,  Michael Campagna

    IPC: G01M15/00 ,  G01M15/14 ,  G08B21/18 ,  G01M15/10

    Abstract: A failure detection device is disclosed. The failure detection device may receive operations data related to operations of a set of parts of a machine. The failure detection device may process the operations data using a condition-based processing technique. The condition-based processing technique may be associated with mapping initial values of data elements of the operations data to binary values based on satisfaction of a first set of conditions by the initial values. The failure detection device may detect a presence of a possible issue with the operations of the set of parts based on a second set of conditions, associated with the binary values and the initial values, being satisfied during a time period. The failure detection device may perform, after detecting the presence of the possible issue, a set of actions related to addressing the possible issue.

    Method and system for estimating damage in an internal combustion engine
    7.
    发明授权
    Method and system for estimating damage in an internal combustion engine 有权

    公开(公告)号：US11028772B1

    公开(公告)日：2021-06-08

    申请号：US16773556

    申请日：2020-01-27

    Applicant: Caterpillar Inc.

    Inventor： David J. Lin ,  Ashwin A. Hattiangadi ,  David T. Montgomery

    IPC: F02B77/08 ,  F02D41/22 ,  F02D41/00 ,  G08B5/22 ,  F02D35/02

    Abstract: A method for estimating damage of a component of an internal combustion engine includes receiving a fuel rate signal indicative of a fuel rate of the internal combustion engine and estimating a temperature value of the component of the internal combustion engine based on at least the received fuel rate signal. The method also includes estimating an incremental amount of damage of the component of the internal combustion engine based on the estimated temperature value of the component of the internal combustion engine, updating a cumulative amount of damage of the component of the internal combustion engine based on the estimated incremental amount of damage, and outputting a notification based on at least the cumulative amount of damage of the component of the internal combustion engine.

    SYSTEM AND METHOD FOR CONTROLLING AIR-FUEL RATIO
    9.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING AIR-FUEL RATIO 审中-公开
    用于控制空气 - 燃料比的系统和方法

    公开(公告)号：US20160252036A1

    公开(公告)日：2016-09-01

    申请号：US15150751

    申请日：2016-05-10

    Applicant: Caterpillar Inc.

    Inventor： Hua Xu ,  Arvind Sivasubramanian ,  Shaun D. Fogle ,  David J. Lin

    IPC: F02D41/24 ,  F02D41/14

    CPC classification number: F02D41/1475 ,  F02D41/1463 ,  F02D2041/281 ,  F02D2041/286

    Abstract: The disclosure provides a method to operate an engine system. The method begins by determination of a current NOx value. If the current NOx value is greater than a first predetermined NOx target, an air-fuel ratio (AFR) set-point is adjusted by a first predetermined value in towards a rich AFR. Upon detection of the current NOx value below the first predetermined NOx target, a first average of NOx values for a first predetermined time is determined. The AFR set-point is adjusted by a second predetermined value and a second average of NOx values for a second predetermined time is determined. A delta NOx value is determined as a difference between the first average and the second average and compared with a second predetermined NOx target. The AFR set-point is determined when the delta NOx value is below the second predetermined NOx target.

    Abstract translation: 本公开提供了一种操作发动机系统的方法。 该方法通过确定当前的NOx值开始。 如果当前的NOx值大于第一规定的NOx目标，则将空燃比（AFR）设定点向着浓AFR调整第一预定值。 当检测到当前NOx值低于第一预定NOx目标值时，确定第一预定时间的NOx值的第一平均值。 AFR设定点被调整第二预定值，并确定第二预定时间的NOx值的第二平均值。 Δδ值被确定为第一平均值和第二平均值之差，并与第二预定NOx目标进行比较。 当ΔNOX值低于第二预定NOx靶时，确定AFR设定点。

    Injection timing management in dual fuel engine system
    10.
    发明授权
    Injection timing management in dual fuel engine system 有权
    双燃料发动机系统的喷油定时管理

    公开(公告)号：US09212618B2

    公开(公告)日：2015-12-15

    申请号：US13854293

    申请日：2013-04-01

    Applicant: Caterpillar Inc.

    Inventor： Arvind Sivasubramanian ,  David J. Lin ,  Keith A. Intveld ,  Jeffrey A. Howard ,  Christopher F. Gallmeyer

    IPC: F02D41/40 ,  F02D19/06 ,  F02D41/30 ,  F02D41/00

    CPC classification number: F02D41/401 ,  F02D19/0613 ,  F02D19/0615 ,  F02D41/0025 ,  F02D41/3064 ,  F02D2200/604 ,  Y02T10/36 ,  Y02T10/44

    Abstract: A fuel injection timing management system for a dual fuel engine is configured to determine a first diesel injection timing corresponding to a first mode of operation of the engine system and a second diesel injection timing corresponding to a second mode of operation. The system may further determine a direction of change in a mode of operation of the engine system, and selectively perform a change in the diesel injection timing from the first diesel injection timing to the second diesel injection timing at a first rate of transition or a second rate of transition, based on the direction of change in a mode of operation of the engine system.

    Abstract translation: 用于双燃料发动机的燃料喷射定时管理系统被配置为确定对应于发动机系统的第一操作模式的第一柴油喷射正时和对应于第二操作模式的第二柴油喷射定时。 该系统还可以确定发动机系统的运行模式的变化方向，并且以第一转换速率或第二速度选择性地执行从第一柴油喷射正时到第二柴油喷射正时的柴油喷射正时的变化 基于发动机系统的操作模式的变化方向的转换速率。

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