Title:
内燃機関のノッキング判定装置
Document Type and Number:
Japanese Patent JP4549920
Kind Code:
B2
Abstract:
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; 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; determining that knocking occurred when the knock intensity N is larger than a predetermined reference value; and determining that knocking has not occurred when the knock intensity N is not larger than the predetermined reference value.
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Inventors:
Shuhei Oe
Jun Iwade
Nobuyuki Murate
Kaneko Ritsuto
Yuichi Takemura
Shigeru Kamio
Jun Iwade
Nobuyuki Murate
Kaneko Ritsuto
Yuichi Takemura
Shigeru Kamio
Application Number:
JP2005130005A
Publication Date:
September 22, 2010
Filing Date:
April 27, 2005
Export Citation:
Assignee:
トヨタ自動車株式会社
株式会社デンソー
株式会社日本自動車部品総合研究所
株式会社デンソー
株式会社日本自動車部品総合研究所
International Classes:
F02D45/00
Domestic Patent References:
| JP60004824A | ||||
| JP2005023902A | ||||
| JP4194711A | ||||
| JP1148924A | ||||
| JP60204969A |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Tadashi Muto
Toshio Morita
Tadashi Muto