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    Systems and methods for controlling exhaust flow through dual after treatment device
    2.
    发明授权
    Systems and methods for controlling exhaust flow through dual after treatment device 有权

    公开(公告)号：US10344642B2

    公开(公告)日：2019-07-09

    申请号：US15612751

    申请日：2017-06-02

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Giovanni Montinaro ,  Andrea Dutto ,  Claudio Ciaravino ,  Andrea Arnone ,  Stefano Cassani

    IPC: F01N3/20 ,  F01N3/08 ,  F01N3/10 ,  F01N9/00 ,  F01N13/00

    Abstract: Systems and methods for controlling a valve for directing an exhaust gas stream through an exhaust duct having a first after treatment device and a second after treatment device in an exhaust system. The method includes receiving sensor signals from a sensor coupled to the second after treatment device. The method includes processing the sensor signals to determine a temperature of the second after treatment device, and determining a position for the valve based on whether the temperature exceeds a pre-defined threshold for the temperature of the second after treatment device. The method includes outputting a control signal to move the valve to a first position in which the exhaust gas stream flows through a first portion of the first after treatment device or a second position in which the exhaust gas stream flows through a second portion of the first after treatment device based on the temperature.

    METHOD AND SYSTEM FOR COMPENSATING NOX SENSOR MEASUREMENT ERROR
    4.
    发明申请
    METHOD AND SYSTEM FOR COMPENSATING NOX SENSOR MEASUREMENT ERROR 审中-公开

    公开(公告)号：US20200063633A1

    公开(公告)日：2020-02-27

    申请号：US16109287

    申请日：2018-08-22

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Luca Lauritano ,  Luis Daniel Guerrero Cruz ,  Giuseppe Mazzara Bologna ,  Andrea Dutto ,  Sarah Funk

    IPC: F01N11/00 ,  F01N3/20

    Abstract: Systems and associated methods of treating diesel exhaust in a vehicle are disclosed. An example method includes providing an exhaust aftertreatment device in an exhaust tailpipe, and a first nitrogen oxide (NOx) sensor upstream of the exhaust aftertreatment device, with the exhaust aftertreatment device configured to reduce NOx present in an exhaust flow through the exhaust aftertreatment device with a treatment fluid applied to the exhaust flow. This example method may also include measuring a concentration of NOx in the exhaust flow with the first sensor, determining an error in the measurement of the NOx concentration, and applying a learning corrective adjustment in a subsequent measurement of the NOx concentration in the exhaust flow in response to that determination. A first magnitude of the learning corrective adjustment may be based at least in part upon a second magnitude of the error in the measurement.

    Semi-empirical engine-out soot model
    7.
    发明授权
    Semi-empirical engine-out soot model 有权

    公开(公告)号：US10883408B2

    公开(公告)日：2021-01-05

    申请号：US16109349

    申请日：2018-08-22

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： David E. Edwards ,  Giorgio Sticchi ,  Andrea Dutto ,  Min Sun

    IPC: F01N3/00 ,  F01N9/00 ,  F01N3/025 ,  B01D46/00

    Abstract: An automotive vehicle includes an internal combustion engine that combusts an air/fuel mixture thereby generating exhaust gas containing particulate matter, and an exhaust after-treatment component that collects the particulate matter. A regeneration system burns off the collected particulate matter thereby regenerating the exhaust after-treatment component. A controller obtains a model of the combustion that is based on a kinetic controlled combustion phase and a mixing controlled combustion phase, and determines a point on the model with respect to current engine conditions that indicates an amount of the particulate matter in the exhaust gas.

    Method and apparatus for monitoring a particulate filter
    9.
    发明授权
    Method and apparatus for monitoring a particulate filter 有权

    公开(公告)号：US10273857B2

    公开(公告)日：2019-04-30

    申请号：US15407292

    申请日：2017-01-17

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Andrea Pannuzzo ,  Andrea Dutto ,  Adele De Domenico

    IPC: F01N9/00 ,  F01N11/00 ,  F01N3/023

    Abstract: A method for monitoring particulate filter disposed in an exhaust aftertreatment system of an internal combustion engine includes determining, via a differential pressure sensor, a pressure differential across the particulate filter, and determining an initial parameter associated with soot loading on the particulate filter based upon the pressure differential. A first adjustment to the soot loading is determined based upon a passive regeneration effect, a second adjustment to the soot loading is determined based upon an off-engine temperature effect, and a third adjustment to the soot loading is determined based upon occurrence of an interrupted regeneration event. A final parameter associated with soot loading on the particulate filter is determined based upon the initial parameter and the first, second and third adjustments.

    METHOD OF ESTIMATING HYDROCARBON STORAGE IN A CATALYTIC DEVICE
    10.
    发明申请
    METHOD OF ESTIMATING HYDROCARBON STORAGE IN A CATALYTIC DEVICE 有权
    在催化装置中估计储存烃的方法

    公开(公告)号：US20150209729A1

    公开(公告)日：2015-07-30

    申请号：US14163120

    申请日：2014-01-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Min Sun ,  Michelangelo Ardanese ,  Stefano Cassani ,  Andrea Dutto

    IPC: B01D53/94

    CPC classification number: B01D53/9495 ,  B01D53/9459 ,  F01N3/0814 ,  F01N3/2006 ,  F01N3/208 ,  F01N9/002 ,  F01N9/005 ,  F01N2610/03 ,  F01N2900/0601 ,  F01N2900/1402 ,  F01N2900/1618 ,  F01N2900/1621 ,  F01N2900/1622 ,  Y02T10/47

    Abstract: A method of estimating hydrocarbon storage in a catalytic device of an exhaust gas treatment system includes calculating an amount of hydrocarbons absorbed in the catalytic device per unit volume of exhaust gas over a period of time, calculating an amount of hydrocarbons desorbed in the catalytic device per unit volume of exhaust gas over the period of time, and calculating an amount of hydrocarbons oxidized in the catalytic device per unit volume of exhaust gas over the period of time. The amount of hydrocarbons oxidized in the catalytic device and the amount of hydrocarbons desorbed in the catalytic device are subtracted from the amount of hydrocarbons absorbed in the catalytic device to determine the amount of hydrocarbons stored in the catalytic device.

    Abstract translation: 一种估计废气处理系统的催化装置中的烃储存的方法包括计算在一段时间内每单位体积废气中催化装置中吸收的烃的量，计算每个催化装置中解吸的烃的量 在一段时间内排气的单位体积，并计算在一段时间内每单位体积排气中的催化装置中氧化的烃的量。 在催化装置中氧化的烃的量和在催化装置中解吸的烃的量从在催化装置中吸收的烃的量减去以确定存储在催化装置中的烃的量。

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