METHOD FOR DETECTING COMBUSTION TIMING AND SYSTEM THEREOF
    4.
    发明申请
    METHOD FOR DETECTING COMBUSTION TIMING AND SYSTEM THEREOF 有权
    检测燃烧时间的方法及其系统

    公开(公告)号:US20100132443A1

    公开(公告)日:2010-06-03

    申请号:US12552213

    申请日:2009-09-01

    IPC分类号: G01M15/04

    摘要: An accelerator sensor that is mounted on an engine block may be used to detect vibration of a compression ignition engine, and the detected vibration signal is analyzed to determine the combustion timing of the engine. A method for detecting combustion timing may include measuring a block vibration signal generated in a combustion process of an engine, setting up a frequency area that is to be analyzed in the block vibration to divide the frequency area into wavelet scales, executing continuous wavelet transformations of the divided wavelet scales to extract respective result values thereof and to calculate differences between former result values and latter result values, comparing the calculated difference value with a predetermined value to store crank angles of pertinent timing if the calculated difference values exceed the predetermined value, and averaging the stored crank angles to determine combustion timing in a case that all wavelet scales are processed.

    摘要翻译: 可以使用安装在发动机缸体上的加速器传感器来检测压缩点火发动机的振动,并且分析检测到的振动信号以确定发动机的燃烧正时。 用于检测燃烧正时的方法可以包括测量在发动机的燃烧过程中产生的块振动信号,在块振动中建立待分析的频率区域以将频率区域划分成小波尺度,执行连续小波变换 分割的小波尺度提取其各自的结果值,并计算以前的结果值和后面的结果值之间的差异,将所计算的差值与预定值进行比较,以便如果计算的差值超过预定值则存储相关定时的曲柄角,以及 对所存储的曲柄角进行平均以确定处理所有小波尺度的情况下的燃烧正时。

    Continuous variable valve lift apparatus
    6.
    发明授权
    Continuous variable valve lift apparatus 有权
    连续可变气门提升装置

    公开(公告)号:US08485149B2

    公开(公告)日:2013-07-16

    申请号:US12950322

    申请日:2010-11-19

    申请人: Jang Heon Kim

    发明人: Jang Heon Kim

    IPC分类号: F01L1/34

    摘要: A continuously variable valve lift apparatus includes a camshaft, a first cam disposed on the camshaft, a first valve opening/closing unit, a control unit transferring rotation of the first cam to the first valve opening/closing unit and adjusting valve lift of the first valve opening/closing unit, a second cam disposed on the camshaft and a second valve opening/closing unit constantly opened and closed by rotation of the second cam.

    摘要翻译: 一种连续可变气门提升装置,包括凸轮轴,设置在凸轮轴上的第一凸轮,第一阀开闭单元,控制单元,其将第一凸轮的旋转传递到第一阀开闭单元,并且调节第一 阀打开/关闭单元,设置在凸轮轴上的第二凸轮和通过第二凸轮的旋转而恒定地打开和关闭的第二阀打开/关闭单元。

    CONTINUOUS VARIABLE VALVE LIFT APPARATUS
    7.
    发明申请
    CONTINUOUS VARIABLE VALVE LIFT APPARATUS 有权
    连续可变阀门提升装置

    公开(公告)号:US20110315103A1

    公开(公告)日:2011-12-29

    申请号:US12950322

    申请日:2010-11-19

    申请人: Jang Heon Kim

    发明人: Jang Heon Kim

    IPC分类号: F01L1/12

    摘要: A continuously variable valve lift apparatus includes a camshaft, a first cam disposed on the camshaft, a first valve opening/closing unit, a control unit transferring rotation of the first cam to the first valve opening/closing unit and adjusting valve lift of the first valve opening/closing unit, a second cam disposed on the camshaft and a second valve opening/closing unit constantly opened and closed by rotation of the second cam.

    摘要翻译: 一种连续可变气门提升装置,包括凸轮轴,设置在凸轮轴上的第一凸轮,第一阀开闭单元,控制单元,其将第一凸轮的旋转传递到第一阀开闭单元,并且调节第一 阀打开/关闭单元,设置在凸轮轴上的第二凸轮和通过第二凸轮的旋转而恒定地打开和关闭的第二阀打开/关闭单元。

    Method for detecting combustion timing and system thereof
    8.
    发明授权
    Method for detecting combustion timing and system thereof 有权
    检测燃烧时间的方法及其系统

    公开(公告)号:US08033165B2

    公开(公告)日:2011-10-11

    申请号:US12552213

    申请日:2009-09-01

    IPC分类号: G01M15/04

    摘要: An accelerator sensor that is mounted on an engine block may be used to detect vibration of a compression ignition engine, and the detected vibration signal is analyzed to determine the combustion timing of the engine. A method for detecting combustion timing may include measuring a block vibration signal generated in a combustion process of an engine, setting up a frequency area that is to be analyzed in the block vibration to divide the frequency area into wavelet scales, executing continuous wavelet transformations of the divided wavelet scales to extract respective result values thereof and to calculate differences between former result values and latter result values, comparing the calculated difference value with a predetermined value to store crank angles of pertinent timing if the calculated difference values exceed the predetermined value, and averaging the stored crank angles to determine combustion timing in a case that all wavelet scales are processed.

    摘要翻译: 可以使用安装在发动机缸体上的加速器传感器来检测压缩点火发动机的振动,并且分析检测到的振动信号以确定发动机的燃烧正时。 用于检测燃烧正时的方法可以包括测量在发动机的燃烧过程中产生的块振动信号,在块振动中建立待分析的频率区域以将频率区域划分成小波尺度,执行连续小波变换 分割的小波尺度提取其各自的结果值,并计算以前的结果值和后面的结果值之间的差异,将所计算的差值与预定值进行比较,以便如果计算的差值超过预定值则存储相关定时的曲柄角,以及 对所存储的曲柄角进行平均以确定处理所有小波尺度的情况下的燃烧正时。