Knocking determination apparatus and knocking determination...

Details Knocking determination apparatus and knocking determination... Knocking determination apparatus and knocking determination...

2007-05-23

2011-10-25

Kirkland, III, Freddie (Department: 2855)

Measuring and testing

Engine detonation

Specific type of detonation sensor

Reexamination Certificate

active

08042381

ABSTRACT:
A knocking judgement method for an internal combustion engine, in which an engine ECU executes a program judging whether or not such ones of integrated values calculated by integrating the output of a knock sensor at every five degrees of a crank angle are larger than a tentative knock judgement value, in vibrations of a fourth frequency band containing the resonance frequency of the engine, tentatively judging that a knocking has occurred, in case the integrated value larger than the tentative knock judgement value is a predetermined number or more, and judging that no knocking has occurred, in case the integrated value larger than the tentative knock judgement value is not more than the predetermined number.

REFERENCES:
patent: 7206691 (2007-04-01), Kaneko et al.
patent: 7347081 (2008-03-01), Inoue et al.
patent: 7669459 (2010-03-01), Yoshihara et al.
patent: 2002/0179053 (2002-12-01), Kokubo et al.
patent: 2003/0005749 (2003-01-01), Nishimura
patent: 2004/0103714 (2004-06-01), Fukuoka et al.
patent: 2005/0241369 (2005-11-01), Inoue et al.
patent: 2006/0142925 (2006-06-01), Kaneko et al.
patent: 2007/0012090 (2007-01-01), Yoshihara et al.
patent: 2009/0150058 (2009-06-01), Kaneko et al.
patent: 10 2005 061 851 (2006-07-01), None
patent: 1 586 880 (2005-10-01), None
patent: 5-195869 (1993-08-01), None
patent: 8 19890 (1996-03-01), None
patent: 8-128354 (1996-05-01), None
patent: 8-246948 (1996-09-01), None
patent: 2003 21032 (2003-01-01), None
patent: 2004-184228 (2004-07-01), None
patent: 2004 353531 (2004-12-01), None
patent: 2005 23902 (2005-01-01), None
patent: 2005 299579 (2005-10-01), None
patent: 2005 330954 (2005-12-01), None
patent: WO 2005/103466 (2005-11-01), None

Affiliated with

Also associated with

Rating

Knocking determination apparatus 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 apparatus and knocking determination..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Knocking determination apparatus and knocking determination... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4290376