Knocking determination device and method for internal...

Details Knocking determination device and method for internal... Knocking determination device and method for internal...

2011-05-17

2011-05-17

Kirkland, III, Freddie (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Irregular combustion

C073S035010, C073S035090

Reexamination Certificate

active

07942040

ABSTRACT:
Out of synthesized waveforms of vibrations in a first frequency band A to a third frequency band C, a knock magnitude N is calculated by using a portion β having an integrated value greater than a reference magnitude in a knock region but not using a portion having an integrated value greater than the reference magnitude out of the knock region (i.e., a region obtained by excluding the knock region from a knock detecting gate). In a case where knock magnitude N is greater than a determination value V(KX), it is determined that knocking occurs. In contrast, in a case where knock magnitude N is not greater than determination value V(KX), it is determined that no knocking occurs.

REFERENCES:
patent: 6546328 (2003-04-01), Slicker
patent: 6688286 (2004-02-01), Kokubo et al.
patent: 6701894 (2004-03-01), Katagami
patent: 7263430 (2007-08-01), Kasashima et al.
patent: 7281516 (2007-10-01), Kaneko et al.
patent: 7387107 (2008-06-01), Kaneko et al.
patent: 7392788 (2008-07-01), Kaneko et al.
patent: 7441543 (2008-10-01), Yoshihara et al.
patent: 7500468 (2009-03-01), Kaneko et al.
patent: 7588015 (2009-09-01), Kaneko et al.
patent: 7594423 (2009-09-01), Padhi et al.
patent: 7669459 (2010-03-01), Yoshihara et al.
patent: 7673615 (2010-03-01), Oe et al.
patent: 7677083 (2010-03-01), Oe et al.
patent: 7681552 (2010-03-01), Kaneko et al.
patent: 2005/0234633 (2005-10-01), Takemura et al.
patent: 2005/0251320 (2005-11-01), Kasashima et al.
patent: 2006/0185422 (2006-08-01), Iwade et al.
patent: 2006/0236753 (2006-10-01), Yoshihara et al.
patent: 2007/0084266 (2007-04-01), Kaneko et al.
patent: 2009/0005956 (2009-01-01), Yoshihara et al.
patent: 2009/0150058 (2009-06-01), Kaneko et al.
patent: 2009/0158816 (2009-06-01), Kaneko et al.
patent: 4 76249 (1992-03-01), None
patent: 5 26778 (1993-02-01), None
patent: 11-270400 (1999-10-01), None
patent: 11 324785 (1999-11-01), None
patent: 2003 21032 (2003-01-01), None
patent: 2004 353531 (2004-12-01), None
patent: 2005 23902 (2005-01-01), None
patent: 2005 330954 (2005-12-01), None
patent: 2006 307708 (2006-11-01), None
patent: WO 2007/004597 (2007-01-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2707917