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    Device and method for determining knock in an internal combustion engine
    4.
    发明授权
    Device and method for determining knock in an internal combustion engine 有权

    公开(公告)号：US09835514B2

    公开(公告)日：2017-12-05

    申请号：US12972645

    申请日：2010-12-20

    申请人： Yuji Sasaki

    发明人： Yuji Sasaki

    IPC分类号： G01L23/22 ,  F02D35/02 ,  F02P5/152 ,  F02D41/14 ,  F02D41/28

    CPC分类号： G01L23/221 ,  F02D35/027 ,  F02D2041/1432 ,  F02D2041/288 ,  F02D2200/025 ,  F02P5/152 ,  Y02T10/46

    摘要： An internal combustion engine knock determining device includes a vibration detector that produces a signal corresponding to engine vibration, an intensity computing unit that retrieves vibrational components in a plurality of frequency regions in which vibration intensity peaks are located when knock occurs, a background-noise computing unit that calculates background noise caused by factors other than knock, a frequency computing unit that determines specific frequency regions from which to determine whether knock is occurring by excluding certain frequency regions designated as frequency regions requiring exclusion due to the intensity of false-detection causing noise as a proportion of the background noise in the certain regions, and a knock determining unit that determines the occurrence of knock based on the vibration intensity in the specific frequency regions obtained by excluding the frequency regions requiring exclusion, wherein the number of specific frequency regions is increased to improve the accuracy of knock detection.

    Engine knock signal transmissive element
    6.
    发明授权
    Engine knock signal transmissive element 有权
    发动机爆震信号传输元件

    公开(公告)号：US09442034B2

    公开(公告)日：2016-09-13

    申请号：US14087820

    申请日：2013-11-22

    申请人： Ford Global Technologies, LLC

    发明人： Mohammad Ali Moetakef ,  James Matthew Kindree ,  Mathew Leonard Hintzen ,  Antony George Schepak

    IPC分类号： G01L23/22 ,  F02B77/08 ,  F02F1/10

    CPC分类号： G01L23/221 ,  F02B77/085 ,  F02F1/108

    摘要： Embodiments may provide an engine knock monitoring system that may include an engine block including an engine block body and a cylinder wall defining at least a portion of a combustion chamber. A space may be defined between a top of the cylinder wall and a top of the engine block body. An engine knock sensor may be mounted to the engine block. A pressure pulse transmissive element may be disposed in the space and may be disposed in contact with an outside surface of the cylinder wall and an opposite inside surface of the engine block body.

    摘要翻译： 实施例可以提供一种发动机爆震监测系统，其可以包括发动机缸体，发动机缸体包括发动机缸体和限定燃烧室的至少一部分的气缸壁。 可以在气缸壁的顶部和发动机缸体的顶部之间限定空间。 发动机爆震传感器可以安装在发动机缸体上。 压力脉冲传输元件可以设置在该空间中并且可以设置成与气缸壁的外表面和发动机缸体的相对的内表面接触。

    Internal combustion engine knock controlling apparatus
    9.
    发明授权
    Internal combustion engine knock controlling apparatus 有权
    内燃机爆震控制装置

    公开(公告)号：US09164012B2

    公开(公告)日：2015-10-20

    申请号：US13552391

    申请日：2012-07-18

    申请人： Yuhei Matsushima

    发明人： Yuhei Matsushima

    IPC分类号： F02P5/152 ,  G01M15/12 ,  F02D35/02 ,  G01L23/22 ,  F02D41/14 ,  F02D41/28

    CPC分类号： G01M15/12 ,  F02D35/027 ,  F02D2041/1432 ,  F02D2041/286 ,  G01L23/221

    摘要： An internal combustion engine knock controlling apparatus is obtained that improves knock detection performance by making a correction period appropriate without performing matching, when calculating a transition correction factor for correcting a filter coefficient used for calculating a mean value and a standard deviation of a knock signal in a transitional operation state. A previous value of a filter coefficient for calculating a knock determination threshold value that has been corrected by a transition correction factor is used for a filter coefficient for calculating the transition correction factor so that the response characteristics are made equal between a filtering process used for calculating a transition correction factor for correcting a knock determination threshold value and a filtering process used for calculating the knock determination threshold value in a transition operation period.

    摘要翻译： 获得内燃机爆震控制装置，其在计算用于校正用于计算平均值的滤波器系数和爆震信号的标准偏差的过渡校正因子时，通过使校正周期适当而不执行匹配来改善爆震检测性能 过渡运行状态。 将用于计算由过渡校正因子校正的爆震判定阈值的滤波器系数的先前值用于计算过渡校正因子的滤波器系数，使得在用于计算的滤波处理之间使响应特性相等 用于校正爆震判定阈值的过渡校正因子和用于在过渡操作期间计算爆震判定阈值的过滤处理。

    KNOCK CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE
    10.
    发明申请
    KNOCK CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE 有权
    内燃机起动控制装置

    公开(公告)号：US20140041439A1

    公开(公告)日：2014-02-13

    申请号：US13736349

    申请日：2013-01-08

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： Yuhei MATSUSHIMA

    IPC分类号： G01L23/22

    CPC分类号： G01L23/221 ,  F02D35/027 ,  F02D2041/288 ,  F02D2200/101 ,  G01L23/226

    摘要： A knock control apparatus for an internal combustion engine can remove regularly generated noise vibration in a simple and appropriate manner. The apparatus includes a knock sensor, a crank angle sensor, a vibration waveform detection unit that detects a vibration waveform of a knock natural frequency component, a vibration waveform average value calculation unit that calculates a vibration waveform average value corresponding to a noise vibration waveform by filtering the vibration waveform over a plurality of ignition cycles, a noise vibration waveform removal unit that removes the noise vibration waveform by subtracting the vibration waveform average value from the vibration waveform, a knock determination threshold value calculation unit that calculates a threshold value based on a peak value of the vibration waveform after removal of the noise vibration waveform, and a knock determination unit that determines whether a knock has occurred, by comparing the peak value with the threshold value.

    摘要翻译： 用于内燃机的爆震控制装置可以以简单和适当的方式去除规则产生的噪声振动。 该装置包括爆震传感器，曲柄角传感器，检测爆震固有频率分量的振动波形的振动波形检测单元，振动波形平均值计算单元，其计算与噪声振动波形对应的振动波形平均值， 在多个点火循环中过滤振动波形，噪声振动波形去除单元，其通过从振动波形中减去振动波形平均值来去除噪声振动波形;爆震判定阈值计算单元，其基于 去除噪声振动波形后的振动波形的峰值，以及通过将峰值与阈值进行比较来确定是否发生敲击的爆震判定单元。