Misfire detection apparatus for internal combustion engine...

Details Misfire detection apparatus for internal combustion engine... Misfire detection apparatus for internal combustion engine...

2008-04-08

2008-04-08

Kwon, John T. (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S436000, C073S035080, C701S110000

Reexamination Certificate

active

11390974

ABSTRACT:
The present invention generally includes a method of detecting a misfire in an internal combustion engine. The method includes detecting a first engine speed at a first crankshaft position that corresponds to about a top dead center compression position of a first piston within a first cylinder and detecting a second engine speed at a second crankshaft position that corresponds to about a position subsequent to the top dead center compression position. The method determines whether the misfire occurred in the first cylinder based on the first engine speed and the second engine speed. The method provides an improved signal to noise ratio for engine misfire detection.

REFERENCES:
patent: 5237504 (1993-08-01), Holmes et al.
patent: 5675094 (1997-10-01), Klauber et al.
patent: 5869752 (1999-02-01), Klauber et al.
patent: 6222445 (2001-04-01), Beckhusen
patent: 6520159 (2003-02-01), White et al.
patent: 7133766 (2006-11-01), Kokubo
patent: 2003/0127073 (2003-07-01), Buck et al.
patent: 2003/0200789 (2003-10-01), Tanaya

Affiliated with

Also associated with

Rating

Misfire detection apparatus for internal combustion engine... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Misfire detection apparatus for internal combustion engine..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Misfire detection apparatus for internal combustion engine... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3921673