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    PARTICULATE FILTER PERFORMANCE MONITORING
    3.
    发明申请
    PARTICULATE FILTER PERFORMANCE MONITORING 有权
    颗粒过滤器性能监测

    公开(公告)号：US20150020507A1

    公开(公告)日：2015-01-22

    申请号：US13943142

    申请日：2013-07-16

    Applicant: GM Global Technology Operations LLC

    Inventor： Min Sun, JR. ,  Michelangelo Ardanese ,  Vincent J. Tylutki ,  Igor Anilovich

    IPC: F01N11/00 ,  G01M15/10 ,  G01N15/08 ,  F01N3/021

    CPC classification number: F01N11/00 ,  F01N3/021 ,  F01N2560/05 ,  F01N2900/0416 ,  F01N2900/1606 ,  G01M15/102 ,  G01N15/08 ,  G01N15/082 ,  G01N2015/084 ,  Y02T10/47

    Abstract: A method for particulate filter performance monitoring in an exhaust gas treatment system is provided. The method includes monitoring a current received from a soot sensor in the exhaust gas treatment system and comparing the current to a soot sensor current threshold. Based on determining that the current is greater than or equal to the soot sensor current threshold, an accumulated engine out soot value is compared to an accumulated engine out soot threshold. A particulate filter fault is set based on determining that the accumulated engine out soot value is less than the accumulated engine out soot threshold. A monitoring system and an exhaust gas treatment system of an engine are also provided.

    Abstract translation: 提供了一种废气处理系统中的微粒过滤器性能监测方法。 该方法包括监测从废气处理系统中的烟灰传感器接收的电流，并将电流与烟尘传感器电流阈值进行比较。 基于确定电流大于或等于烟尘传感器电流阈值，将累积的发动机熄火烟炱值与积累的发动机熄火烟炱阈值进行比较。 基于确定积存的发动机熄火烟灰值小于累积发动机熄火烟灰阈值来设定微粒过滤器故障。 还提供了发动机的监测系统和废气处理系统。

    REGULATION OF A DIESEL EXHAUST AFTER-TREATMENT SYSTEM VIA EXHAUST ENERGY DETERMINATION
    5.
    发明申请
    REGULATION OF A DIESEL EXHAUST AFTER-TREATMENT SYSTEM VIA EXHAUST ENERGY DETERMINATION 有权
    通过排气能量测定法对柴油机后处理系统进行调节

    公开(公告)号：US20170074187A1

    公开(公告)日：2017-03-16

    申请号：US14854178

    申请日：2015-09-15

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Kevin J. McKay ,  Igor Anilovich

    IPC: F02D41/02 ,  F01N11/00

    CPC classification number: F01N11/00 ,  F01N3/021 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/00 ,  F01N2430/00 ,  F01N2900/1404 ,  F01N2900/1411 ,  F01N2900/1631 ,  F02D41/0255 ,  F02D41/1445 ,  F02D41/1446 ,  F02D41/222 ,  F02D2200/0614 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

    Abstract: A method is disclosed for regulating an exhaust after-treatment (AT) system for a diesel engine. The method includes detecting the engine's cold start when the engine's exhaust gas flow directed into the AT system is at a temperature below a threshold value. The method also includes determining flow-rates of the engine's exhaust gas and its fuel supply. The method additionally includes determining a magnitude of exhaust gas energy using the determined exhaust gas flow-rates and the fuel supply over an elapsed time following the cold start. The method also includes integrating a detected temperature of the exhaust gas over the elapsed time and comparing the determined magnitude of exhaust gas energy with the integrated temperature. Furthermore, the method includes regulating operation of the AT system using the determined exhaust gas temperature when the determined magnitude of exhaust gas energy is within a predetermined value of the integrated exhaust gas temperature.

    Abstract translation: 公开了一种用于调节用于柴油发动机的排气后处理（AT）系统的方法。 该方法包括当引导到AT系统的发动机排气流处于低于阈值的温度时检测发动机的冷启动。 该方法还包括确定发动机废气及其燃料供应的流量。 该方法还包括使用确定的废气流量和在冷启动之后的经过时间内的燃料供应来确定废气能量的大小。 该方法还包括将废气的检测温度与经过的时间相结合，并将所确定的废气能量的大小与积分温度进行比较。 此外，该方法包括当确定的废气能量的大小在综合废气温度的预定值内时，使用确定的废气温度来调节AT系统的操作。

    Engine control for diesel particulate filter efficiency assessment
    6.
    发明授权
    Engine control for diesel particulate filter efficiency assessment 有权
    发动机控制柴油微粒过滤器效率评估

    公开(公告)号：US09574484B1

    公开(公告)日：2017-02-21

    申请号：US14950061

    申请日：2015-11-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Vincent J. Tylutki ,  Igor Anilovich ,  Christopher Whitt ,  Cristian Taibi

    IPC: F01N3/00 ,  F01N11/00 ,  F01N3/021 ,  F02D41/00 ,  F01N3/025 ,  F01N3/10 ,  F01N3/20

    CPC classification number: F01N3/2066 ,  F01N3/021 ,  F01N3/0253 ,  F01N3/106 ,  F01N9/002 ,  F01N13/009 ,  F01N2560/05 ,  F01N2610/03 ,  F01N2900/0412 ,  F01N2900/1411 ,  F02D41/0055 ,  F02D41/029 ,  F02D41/1466 ,  F02D2200/0812 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

    Abstract: A method is disclosed for controlling a diesel engine equipped with a diesel particulate filter (DPF). The method includes detecting steady state operation of the engine generating a first flow rate of particulate matter (PM) directed into the DPF. The method also includes, during the steady state operation, triggering exhaust gas recirculation to the engine and thereby directing a second PM flow rate that is greater than the first flow rate into the DPF. The method additionally includes detecting a PM flow rate exiting the DPF in response to the second PM flow rate directed into the DPF. The method also includes comparing the detected PM flow rate exiting the DPF with a PM flow rate threshold. Furthermore, the method includes regulating injection of fuel to regenerate the DPF, if the detected PM flow rate exiting the DPF is greater than the PM flow rate threshold.

    Abstract translation: 公开了一种用于控制配备有柴油机微粒过滤器（DPF）的柴油发动机的方法。 该方法包括检测发动机的稳态运行，产生引导到DPF中的颗粒物质（PM）的第一流量。 该方法还包括在稳态操作期间触发废气再循环到发动机，从而将大于第一流量的第二PM流量引导到DPF中。 该方法还包括响应于引导到DPF中的第二PM流速来检测离开DPF的PM流量。 该方法还包括将检测到的离开DPF的PM流量与PM流量阈值进行比较。 此外，如果离开DPF的检测到的PM流量大于PM流量阈值，则该方法包括调节燃料的再生以再生DPF。

    EXPONENTIALLY WEIGHTED MOVING AVERAGING FILTER WITH ADJUSTABLE WEIGHTING FACTOR
    7.
    发明申请
    EXPONENTIALLY WEIGHTED MOVING AVERAGING FILTER WITH ADJUSTABLE WEIGHTING FACTOR 有权
    具有可调称重因子的自动称重移动平均过滤器

    公开(公告)号：US20140122020A1

    公开(公告)日：2014-05-01

    申请号：US14055092

    申请日：2013-10-16

    Applicant: GM Global Technology Operations LLC

    Inventor： Janean E. Kowalkowski ,  Igor Anilovich ,  Jason J. Chung

    IPC: G06F17/18

    CPC classification number: G06F17/18 ,  F01N11/00 ,  F01N2560/026 ,  F02D41/146 ,  F02D41/222 ,  F02D2041/1432 ,  Y02T10/40 ,  Y02T10/47

    Abstract: A method of increasing a weighting factor of an exponentially weighted moving averaging (“EWMA”) filter is provided. The method includes monitoring a data stream containing raw data values, and determining an EWMA value based on the data stream by an electronic control module. The method includes determining if the EWMA value is between a predetermined maximum fault threshold value and a predetermined minimum fault threshold value. The method includes increasing the weighting factor of the EWMA filter to more heavily weigh incoming raw data values of the data stream based on the difference between the first raw data value and a previously calculated filtered value exceeding the calibration value.

    Abstract translation: 提供了一种增加指数加权移动平均（“EWMA”）滤波器的加权因子的方法。 该方法包括监视包含原始数据值的数据流，以及由电子控制模块基于数据流确定EWMA值。 该方法包括确定EWMA值是否在预定的最大故障阈值和预定的最小故障阈值之间。 该方法包括基于第一原始数据值和超过校准值的先前计算的滤波值之间的差异来增加EWMA滤波器的加权因子以更大地权衡数据流的输入原始数据值。

    EXHAUST FLUID DOSING CONTROL SYSTEM AND METHOD
    10.
    发明申请
    EXHAUST FLUID DOSING CONTROL SYSTEM AND METHOD 审中-公开
    排气流量控制系统及方法

    公开(公告)号：US20150033705A1

    公开(公告)日：2015-02-05

    申请号：US13959250

    申请日：2013-08-05

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Igor Anilovich ,  Jeffrey F. Loo ,  Janean E. Kowalkowski ,  Justin Adam Shetney

    IPC: F01N3/20

    CPC classification number: F01N3/208 ,  F01N11/00 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2900/0412 ,  F01N2900/1621 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

    Abstract: A dosing control system for an exhaust system of an engine includes: a tank containing a reductant solution having urea; an injector operable to inject the reductant solution into an exhaust flow upstream of an SCR apparatus; first and second NOx sensors disposed to sense NOx emissions in the exhaust flow upstream and downstream, respectively, of the SCR apparatus; and a control module. The control module is disposed in signal communication with the first and second NOx sensors and in operable communication with the injector, the control module being operable to set an original dosing level and decrease a dosing of the reductant solution injected by the injector based on a determination from signals received from the first and second NOx sensors that a reduction in a conversion efficiency of the SCR apparatus below a defined level of conversion efficiency has occurred.

    Abstract translation: 用于发动机排气系统的计量控制系统包括：容纳含有尿素的还原剂溶液的罐; 注射器，其可操作以将还原剂溶液注入SCR装置上游的排气流中; 第一和第二NOx传感器设置成分别检测SCR设备的上游和下游的排气流中的NOx排放; 和控制模块。 控制模块被布置成与第一和第二NOx传感器信号通信并且与喷射器可操作地连通，所述控制模块可操作以基于确定来设置原始计量水平并减少由喷射器注入的还原剂溶液的计量 根据从第一和第二NOx传感器接收的信号，SCR设备的转换效率的降低已经发生在规定的转换效率水平之下。

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