Internal-combustion engines – Spark ignition timing control – Electronic control
Reexamination Certificate
2007-11-02
2010-12-07
Cronin, Stephen K (Department: 3747)
Internal-combustion engines
Spark ignition timing control
Electronic control
C701S103000, C701S104000, C701S105000
Reexamination Certificate
active
07845333
ABSTRACT:
When a condition for the prediction of the occurrence transient knocking has held, that is, when a cooling water temperature θw is not less than a threshold value θwref and an intake air flow Qa is not less than a threshold value Qaref and a deviation of the intake air flow ΔQa is not less than a threshold value ΔQaref (S550to S570), ignition is performed with timing on the delay angle side compared to timing FT1by a delay angle amount α that tends to decrease as an amount increase coefficient Kf increases (S600to S680). Because of this, it is possible to suppress the occurrence of knocking without causing the ignition timing to be delayed more than necessary. As a result of this, it is also possible to suppress the worsening of drivability.
REFERENCES:
patent: 7185631 (2007-03-01), Takeda et al.
patent: 7317983 (2008-01-01), Ishizuka et al.
patent: 63-075355 (1988-04-01), None
patent: 07-180643 (1995-07-01), None
patent: 11-182395 (1999-07-01), None
patent: 2002-004992 (2002-01-01), None
patent: 2005-307889 (2005-11-01), None
patent: 2006-125245 (2006-05-01), None
Cronin Stephen K
Hufty J. Page
Kenyon & Kenyon LLP
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Internal combustion engine apparatus, vehicle and control... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Internal combustion engine apparatus, vehicle and control..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internal combustion engine apparatus, vehicle and control... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4228867