公开(公告)号：US20110282562A1

公开(公告)日：2011-11-17

申请号：US13144978

申请日：2010-01-28

申请人： Masayuki Yoshiri ,  Jiro Takagi ,  Hirotaka Komatsu ,  Kazuhiko Hirota ,  Atsushi Kurauchi ,  Natsuko Kitamura

发明人： Masayuki Yoshiri ,  Jiro Takagi ,  Hirotaka Komatsu ,  Kazuhiko Hirota ,  Atsushi Kurauchi ,  Natsuko Kitamura

IPC分类号： F02D45/00

CPC分类号： F02P5/1522 ,  F02D35/027 ,  F02D41/187 ,  F02D41/2451 ,  F02D41/248 ,  Y02T10/46

摘要： An ignition timing control system for an internal combustion engine, for controlling an ignition timing of the engine, is provided. A charging efficiency of the engine is calculated according to the intake air flow rate and the engine rotational speed which are detected, and a knock limit ignition timing is calculated according to the engine rotational speed and the charging efficiency. A knock correction value is calculated according to the knocking detection result by a knock sensor, and a learning parameter table, in which first and second learning parameters are set, is updated based on the engine rotational speed and the knock correction value when the knocking is detected. The learning parameter table is retrieved according to the engine rotational speed, to calculate the first and second learning parameters. Each-cylinder correction values are calculated corresponding respectively to a plurality of cylinders of the engine using the charging efficiency, the first learning parameter, and the second learning parameter and the ignition timing of the engine is controlled using the knock limit ignition timing and the each-cylinder correction value.

摘要翻译： 提供了一种用于控制发动机的点火正时的用于内燃机的点火正时控制系统。 根据检测到的进气流量和发动机转速来计算发动机的充气效率，并且根据发动机转速和充电效率计算爆震极限点火正时。 根据爆震传感器的爆震检测结果计算爆震校正值，并且当敲击是基于发动机转速和爆震校正值而更新基于第一和第二学习参数的学习参数表 检测到。 根据发动机转速检索学习参数表，计算第一和第二学习参数。 使用充电效率，第一学习参数和第二学习参数分别对应于发动机的多个气缸来计算每个气缸校正值，并且使用爆震极限点火正时来控制发动机的点火正时 - 气缸校正值。

公开(公告)号：US20110118960A1

公开(公告)日：2011-05-19

申请号：US12674577

申请日：2009-03-09

申请人： Hirotaka Komatsu ,  Jiro Takagi ,  Atsushi Kurauchi ,  Masayuki Yoshiri ,  Kazuhiko Hirota ,  Natsuko Kitamura ,  Yoshiaki Akimoto

发明人： Hirotaka Komatsu ,  Jiro Takagi ,  Atsushi Kurauchi ,  Masayuki Yoshiri ,  Kazuhiko Hirota ,  Natsuko Kitamura ,  Yoshiaki Akimoto

IPC分类号： G01L23/22

CPC分类号： G01L23/221 ,  F02D35/027 ,  F02D2041/288 ,  F02D2250/14 ,  G01M15/042 ,  G01M15/12

摘要： A knocking detecting apparatus for an internal combustion engine, which can more accurately perform the knocking determination based on frequency components of the output signal of the knock sensor, is provided. A frequency spectrum analysis of the knock sensor output signal is performed at predetermined angular intervals of the crankshaft rotation angle. Intensities of a plurality of frequency components obtained by the frequency spectrum analysis are stored as time series data. The time series data of the frequency component intensity are binarized, and it is determined whether or not a knocking has occurred based on the binarized time series data.

摘要翻译： 提供了一种用于内燃机的爆震检测装置，其能够基于爆震传感器的输出信号的频率分量更准确地执行爆震确定。 爆震传感器输出信号的频谱分析以曲轴旋转角度的预定角度间​​隔进行。 通过频谱分析获得的多个频率分量的强度被存储为时间序列数据。 频率分量强度的时间序列数据被二值化，并且基于二进制化的时间序列数据确定是否发生了敲击。