发明授权
- 专利标题： Knocking detecting apparatus for internal combustion engine
- 专利标题（中）： 内燃机爆震检测装置
-
申请号： US12674577申请日： 2009-03-09
-
公开(公告)号： US08326518B2公开(公告)日： 2012-12-04
- 发明人: Hirotaka Komatsu , Jiro Takagi , Atsushi Kurauchi , Masayuki Yoshiiri , Kazuhiko Hirota , Natsuko Kitamura , Yoshiaki Akimoto
- 申请人： Hirotaka Komatsu , Jiro Takagi , Atsushi Kurauchi , Masayuki Yoshiiri , Kazuhiko Hirota , Natsuko Kitamura , Yoshiaki Akimoto
- 申请人地址： JP Tokyo
- 专利权人： Honda Motor Co., Ltd.
- 当前专利权人： Honda Motor Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Squire Sanders (US) LLP
- 优先权： JP2008-69019 20080318; JP2009-19354 20090130
- 国际申请： PCT/JP2009/054379 WO 20090309
- 国际公布： WO2009/116410 WO 20090924
- 主分类号： G06F19/00
- IPC分类号： G06F19/00 ; G01L23/22
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.