Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2007-05-28
2010-10-26
Kwon, John T (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C123S406290, C123S406380, C073S035010
Reexamination Certificate
active
07822533
ABSTRACT:
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.
REFERENCES:
patent: 4750103 (1988-06-01), Abo et al.
patent: 5460031 (1995-10-01), Fujishita et al.
patent: 7281516 (2007-10-01), Kaneko et al.
patent: 7363142 (2008-04-01), Kaneko et al.
patent: 7387107 (2008-06-01), Kaneko et al.
patent: 7478624 (2009-01-01), Kaneko et al.
patent: 7653477 (2010-01-01), Yoshihara et al.
patent: 7669459 (2010-03-01), Yoshihara et al.
patent: 2005/0234633 (2005-10-01), Takemura et al.
patent: 2005/0251320 (2005-11-01), Kasashima et al.
patent: 2007/0084266 (2007-04-01), Kaneko et al.
patent: 2009/0158816 (2009-06-01), Kaneko et al.
patent: 102004046081 (2006-04-01), None
patent: 1 586 882 (2005-10-01), None
patent: 04-076249 (1992-03-01), None
patent: 07-139415 (1995-05-01), None
patent: 2004-045344 (2004-02-01), None
patent: 2004-353531 (2004-12-01), None
patent: 2005-023902 (2005-01-01), None
patent: 2005-307753 (2005-11-01), None
patent: 2005-330954 (2005-12-01), None
patent: 2005/103466 (2005-11-01), None
Office Action issued in counterpart German Patent Application No. 11 2007 001 073. 8-52, dated May 18, 2010, 8 pages.
Kaneko Rihito
Kasashima Kenji
Oe Shuhei
Senda Kenji
Takemura Yuuichi
Denso Corporation
Kwon John T
Nippon Soken Inc
Sughrue & Mion, PLLC
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Knocking determination device and knocking determination... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Knocking determination device and knocking determination..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Knocking determination device and knocking determination... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4227197