发明申请
- 专利标题: Knocking Determination Device and Knocking Determination Method of Internal Combustion Engine
- 专利标题(中): 内燃机爆震测定装置及爆震测定方法
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申请号: US12280753申请日: 2007-05-28
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公开(公告)号: US20090005956A1公开(公告)日: 2009-01-01
- 发明人: Masatomo Yoshihara , Kenji Kasashima , Rihito Kaneko , Kenji Senda , Yuuichi Takemura , Shuhei Oe
- 申请人: Masatomo Yoshihara , Kenji Kasashima , Rihito Kaneko , Kenji Senda , Yuuichi Takemura , Shuhei Oe
- 申请人地址: JP AICHI-KEN JP AICHI-KEN JP AICHI-KEN
- 专利权人: TOYOTA JIDOSHA KABUSHIKI KAISHA,DENSO CORPORATION,NIPPON SOKEN INC.
- 当前专利权人: TOYOTA JIDOSHA KABUSHIKI KAISHA,DENSO CORPORATION,NIPPON SOKEN INC.
- 当前专利权人地址: JP AICHI-KEN JP AICHI-KEN JP AICHI-KEN
- 优先权: JP2006-148803 20060529
- 国际申请: PCT/JP2007/061240 WO 20070528
- 主分类号: F02D45/00
- IPC分类号: F02D45/00
摘要:
An engine ECU executes a program including a step of setting a search range of the crank angle of a peak value P that is the largest integrated value in a vibration waveform of an engine detected by calculating integrated values that are integrals of output voltage values of a knock sensor for every five degrees of a crank angle such that the search range may include the crank angle increasing with increase in engine speed NE, and a step of detecting the crank angle of the largest integrated value in the search range, and setting the detected crank angle as the crank angle of peak value P in the vibration waveform. At the crank angle based on the crank angle of peak value P, the vibration waveform is compared with a knock waveform model.