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    System and method for detecting stochastic pre-ignition
    3.
    发明授权
    System and method for detecting stochastic pre-ignition 有权
    随机预燃检测系统及方法

    公开(公告)号：US08973429B2

    公开(公告)日：2015-03-10

    申请号：US13775628

    申请日：2013-02-25

    Applicant: GM Global Technology Operations LLC

    Inventor： J. Michael Gwidt ,  Kevin M. Luchansky ,  Craig M. Sawdon ,  Wajdi B. Hamama

    IPC: G01M15/12 ,  G01M15/11

    CPC classification number: G01M15/11 ,  G01L23/225

    Abstract: A system according to the principles of the present disclosure includes a vibration intensity module and a stochastic pre-ignition (SPI) detection module. The vibration intensity module determines a vibration intensity of an engine over a first engine cycle and a second engine cycle. The first engine cycle and the second engine cycle each correspond to a predetermined amount of crankshaft rotation. The SPI detection module selectively detects stochastic pre-ignition when the vibration intensity of the first engine cycle is less than a first threshold and the vibration intensity of the second engine cycle is greater than a second threshold.

    Abstract translation: 根据本公开原理的系统包括振动强度模块和随机预点火（SPI）检测模块。 振动强度模块确定发动机在第一发动机循环和第二发动机循环中的振动强度。 第一发动机循环和第二发动机循环各自对应于预定量的曲轴旋转。 当第一发动机循环的振动强度小于第一阈值并且第二发动机循环的振动强度大于第二阈值时，SPI检测模块选择性地检测随机预点火。

    SYSTEM AND METHOD FOR DETECTING STOCHASTIC PRE-IGNITION
    4.
    发明申请
    SYSTEM AND METHOD FOR DETECTING STOCHASTIC PRE-IGNITION 有权
    用于检测STOCHASTIC PRE-IGNTION的系统和方法

    公开(公告)号：US20140238120A1

    公开(公告)日：2014-08-28

    申请号：US13775628

    申请日：2013-02-25

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： J. Michael Gwidt ,  Kevin M. Luchansky ,  Craig M. Sawdon ,  Wajdi B. Hamama

    IPC: G01M15/11

    CPC classification number: G01M15/11 ,  G01L23/225

    Abstract: A system according to the principles of the present disclosure includes a vibration intensity module and a stochastic pre-ignition (SPI) detection module. The vibration intensity module determines a vibration intensity of an engine over a first engine cycle and a second engine cycle. The first engine cycle and the second engine cycle each correspond to a predetermined amount of crankshaft rotation. The SPI detection module selectively detects stochastic pre-ignition when the vibration intensity of the first engine cycle is less than a first threshold and the vibration intensity of the second engine cycle is greater than a second threshold.

    Abstract translation: 根据本公开原理的系统包括振动强度模块和随机预点火（SPI）检测模块。 振动强度模块确定发动机在第一发动机循环和第二发动机循环中的振动强度。 第一发动机循环和第二发动机循环各自对应于预定量的曲轴旋转。 当第一发动机循环的振动强度小于第一阈值并且第二发动机循环的振动强度大于第二阈值时，SPI检测模块选择性地检测随机预点火。

    Noise updating systems and methods
    5.
    发明授权
    Noise updating systems and methods 有权
    噪声更新系统和方法

    公开(公告)号：US09441556B2

    公开(公告)日：2016-09-13

    申请号：US13832154

    申请日：2013-03-15

    Applicant: GM Global Technology Operations LLC

    Inventor： Wajdi B. Hamama ,  Craig M. Sawdon ,  Kevin M. Luchansky ,  James R. Reeder, Jr. ,  Frank Garthoff ,  Christian Mueller ,  Jessica A. Carroll

    IPC: F02D35/02 ,  G01L23/22 ,  F02D41/24 ,  F02D41/00

    CPC classification number: F02D35/027 ,  F02D41/0087 ,  F02D41/2451 ,  F02D2200/0611 ,  G01L23/22

    Abstract: A method includes: generating an indicator of present operating conditions of an engine; determining a first amount of noise based on vibration measured during a first plurality of combustion events of a cylinder; storing the first amount of noise and a first value of the indicator in a mapping based on a first engine speed and a first engine load; determining the first value of the indicator from the mapping based on a second engine speed and a second engine load; generating a trigger signal when the first value is different than a second value of the indicator; and, when the trigger signal is generated: determining a second amount of noise based on vibration measured during a second plurality of combustion events of the cylinder; and replacing the first amount of noise and the first value in the mapping with the second amount of noise and the second value.

    Abstract translation: 一种方法包括：产生发动机的当前操作条件的指示器; 基于在气缸的第一多个燃烧事件期间测量的振动来确定第一噪声量; 基于第一发动机速度和第一发动机负载将映射中的第一噪声量和第一值存储在映射中; 基于第二发动机速度和第二发动机负载从所述映射确定所述指示器的第一值; 当所述第一值不同于所述指示器的第二值时产生触发信号; 并且当产生触发信号时：基于在所述气缸的第二多个燃烧事件期间测量的振动来确定第二噪声量; 以及用所述第二噪声量和所述第二值替换所述映射中的所述第一噪声量和所述第一值。

    Stochastic pre-ignition prediction and mitigation systems and methods
    6.
    发明授权
    Stochastic pre-ignition prediction and mitigation systems and methods 有权
    随机预点火预报与减灾系统及方法

    公开(公告)号：US09376975B2

    公开(公告)日：2016-06-28

    申请号：US13712178

    申请日：2012-12-12

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： J. Michael Gwidt ,  Bjorn E. Soderstrom ,  Kevin M. Luchansky ,  Craig M. Sawdon ,  Wajdi B. Hamama

    IPC: F02D41/10 ,  F02D41/14 ,  F02D41/04 ,  F02D41/00

    CPC classification number: F02D41/14 ,  F02D41/0007 ,  F02D41/047 ,  F02D41/10 ,  F02D2200/0406 ,  Y02T10/144

    Abstract: An engine control system for a vehicle includes a timer module, a stochastic pre-ignition (SPI) mitigation module, and a boost control module. The timer module tracks a period of operation of an engine where vacuum within an intake manifold is less than a first predetermined vacuum. The SPI mitigation module generates an SPI signal when the period is greater than a predetermined period and the vacuum is less than a second predetermined vacuum. The second predetermined vacuum is less than the first predetermined vacuum. The boost control module reduces output of a turbocharger in response to the generation of the SPI signal.

    Abstract translation: 用于车辆的发动机控制系统包括定时器模块，随机预点火（SPI）缓解模块和升压控制模块。 定时器模块跟踪在进气歧管内的真空小于第一预定真空的发动机的操作周期。 SPI缓冲模块在周期大于预定周期并且真空小于第二预定真空时产生SPI信号。 第二预定真空小于第一预定真空。 升压控制模块响应于SPI信号的产生而减少涡轮增压器的输出。

    ENGINE KNOCK DETECTION SYSTEMS AND METHODS
    7.
    发明申请
    ENGINE KNOCK DETECTION SYSTEMS AND METHODS 有权
    发动机检测系统和方法

    公开(公告)号：US20140278010A1

    公开(公告)日：2014-09-18

    申请号：US13832154

    申请日：2013-03-15

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Wajdi B. Hamama ,  Craig M. Sawdon ,  Kevin M. Luchansky ,  James R. Reeder, JR. ,  Frank Garthoff ,  Christian Mueller ,  Jessica A. Carroll

    IPC: F02D35/02

    CPC classification number: F02D35/027 ,  F02D41/0087 ,  F02D41/2451 ,  F02D2200/0611 ,  G01L23/22

    Abstract: A method includes: generating an indicator of present operating conditions of an engine; determining a first amount of noise based on vibration measured during a first plurality of combustion events of a cylinder; storing the first amount of noise and a first value of the indicator in a mapping based on a first engine speed and a first engine load; determining the first value of the indicator from the mapping based on a second engine speed and a second engine load; generating a trigger signal when the first value is different than a second value of the indicator; and, when the trigger signal is generated: determining a second amount of noise based on vibration measured during a second plurality of combustion events of the cylinder; and replacing the first amount of noise and the first value in the mapping with the second amount of noise and the second value.

    Abstract translation: 一种方法包括：产生发动机的当前操作条件的指示器; 基于在气缸的第一多个燃烧事件期间测量的振动来确定第一噪声量; 基于第一发动机速度和第一发动机负载将映射中的第一噪声量和第一值存储在映射中; 基于第二发动机速度和第二发动机负载从所述映射确定所述指示器的第一值; 当所述第一值不同于所述指示器的第二值时产生触发信号; 并且当产生触发信号时：基于在所述气缸的第二多个燃烧事件期间测量的振动来确定第二噪声量; 以及用所述第二噪声量和所述第二值替换所述映射中的所述第一噪声量和所述第一值。

    STOCHASTIC PRE-IGNITION PREDICTION AND MITIGATION SYSTEMS AND METHODS
    8.
    发明申请
    STOCHASTIC PRE-IGNITION PREDICTION AND MITIGATION SYSTEMS AND METHODS 有权
    STOCHASTIC PRE-IGNITION预测和减缓系统和方法

    公开(公告)号：US20140163844A1

    公开(公告)日：2014-06-12

    申请号：US13712178

    申请日：2012-12-12

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： J. Michael Gwidt ,  Bjorn E. Soderstrom ,  Kevin M. Luchansky ,  Craig M. Sawdon ,  Wajdi B. Hamama

    IPC: F02D41/14

    CPC classification number: F02D41/14 ,  F02D41/0007 ,  F02D41/047 ,  F02D41/10 ,  F02D2200/0406 ,  Y02T10/144

    Abstract: An engine control system for a vehicle includes a timer module, a stochastic pre-ignition (SPI) mitigation module, and a boost control module. The timer module tracks a period of operation of an engine where vacuum within an intake manifold is less than a first predetermined vacuum. The SPI mitigation module generates an SPI signal when the period is greater than a predetermined period and the vacuum is less than a second predetermined vacuum. The second predetermined vacuum is less than the first predetermined vacuum. The boost control module reduces output of a turbocharger in response to the generation of the SPI signal.

    Abstract translation: 用于车辆的发动机控制系统包括定时器模块，随机预点火（SPI）缓解模块和升压控制模块。 定时器模块跟踪在进气歧管内的真空小于第一预定真空的发动机的操作周期。 SPI缓冲模块在周期大于预定周期并且真空小于第二预定真空时产生SPI信号。 第二预定真空小于第一预定真空。 升压控制模块响应于SPI信号的产生而减少涡轮增压器的输出。

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