Engine control device and control method

Details Engine control device and control method Engine control device and control method

2007-08-14

2007-08-14

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S406340

Reexamination Certificate

active

11137787

ABSTRACT:
A determination is made as to whether or not knocking is actually occurring inside a combustion chamber (5), and on the basis of the knocking detection result, a knocking-correlated parameter (octane number, alcohol concentration, compression ratio of the engine), which is a parameter having a correlation with knocking, is estimated. A knocking occurrence timing in the combustion chamber (5) is then predicted on the basis of the estimated knocking-correlated parameter. A knocking limit ignition timing, which is the ignition timing furthest toward the advanced side at which knocking does not occur, is calculated on the basis of the predicted knocking occurrence timing, and an ignition device (11) is controlled to perform spark ignition at the knocking limit ignition timing.

REFERENCES:
patent: 5845620 (1998-12-01), Miyashita et al.
patent: 6328007 (2001-12-01), Hirasawa et al.
patent: 6408819 (2002-06-01), Mezger et al.
patent: 2004/0159309 (2004-08-01), Nagaishi et al.
patent: 2005/0056240 (2005-03-01), Sugiyama et al.
patent: 2005/0188954 (2005-09-01), Yoshino et al.
patent: 2005/0197762 (2005-09-01), Yoshino et al.
patent: 63-176665 (1988-07-01), None
patent: 5-280454 (1993-10-01), None
patent: 2001-50091 (2001-02-01), None
patent: 2003-148236 (2003-05-01), None
patent: 2001-0013465 (2001-02-01), None

Affiliated with

Also associated with

Rating

Engine control device and control method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Engine control device and control method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine control device and control method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3882758