公开(公告)号：EP1880180A1

公开(公告)日：2008-01-23

申请号：EP06745984.2

申请日：2006-04-25

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Denso Corporation ,  NIPPON SOKEN, INC.

发明人： OE, Shuhei c/o NIPPON SOKEN, INC., 14, Iwaya, ,  IWADE, Kiyoshi c/o NIPPON SOKEN, INC., 14, ,  MURATE, Nobuyuki c/o NIPPON SOKEN, INC., 14, ,  KANEKO, Rihito c/o TOYOTA JIDOSHA KABUSHIKI ,  TAKEMURA, Yuichi ,  KAMIO, Shigeru

IPC分类号： G01L23/22

CPC分类号： G01L23/225

摘要： An engine ECU executes a program including the steps of: detecting a vibration corresponding to a first radial resonance mode by using a band-pass filter, from vibrations sensed by an in-cylinder pressure sensor provided at an upper central portion of the cylinder (S100); calculating knock intensity N based on a result of comparison between the detected waveform and a knock waveform model prepared in advance as a vibration waveform when knocking occurs (S108); determining that knocking occurred (S112) when the knock intensity N is larger than a predetermined reference value (YES in S110); and determining that knocking has not occurred (S116) when the knock intensity N is not larger than the predetermined reference value (NO in S110).

公开(公告)号：EP1880180B1

公开(公告)日：2016-03-09

申请号：EP06745984.2

申请日：2006-04-25

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： OE, Shuhei c/o NIPPON SOKEN, INC., 14, Iwaya, ,  IWADE, Kiyoshi c/o NIPPON SOKEN, INC., 14, ,  MURATE, Nobuyuki c/o NIPPON SOKEN, INC., 14, ,  KANEKO, Rihito c/o TOYOTA JIDOSHA KABUSHIKI ,  TAKEMURA, Yuichi ,  KAMIO, Shigeru

IPC分类号： G01L23/22

CPC分类号： G01L23/225