Engine timing control with intake air pressure sensor

Details Engine timing control with intake air pressure sensor Engine timing control with intake air pressure sensor

2007-06-05

2007-06-05

Solis, Erick (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S406220, C123S406420, C701S105000, C073S118040

Reexamination Certificate

active

11276086

ABSTRACT:
An engine control apparatus is disclosed for determining crankshaft position and engine phase of an internal combustion engine through monitoring intake air pressure fluctuations. The opening of the intake valve is mechanically linked to the crankshaft position of an engine. When the intake valve opens it creates air pressure fluctuations in the air induction system of the engine. The control apparatus is configured to determine intake air pressure fluctuations indicative of an intake air event and thus a particular crankshaft position, and their corresponding period of the engine cycle. The controller then uses this information to determine crankshaft speed and position for the purpose of fuel injection and ignition timing of the internal combustion engine. Engine phase is also determined on four-stroke engines. The engine may also include a crankshaft position sensor in combination with monitoring intake air pressure fluctuations to increase resolution in determination of crankshaft position. A circuit is provided for simultaneously measuring intake temperature using a single bridge type pressure sensor in order to calculate air mass flow rate.

REFERENCES:
patent: 3931802 (1976-01-01), Eckert
patent: 4557225 (1985-12-01), Sagues et al.
patent: 4766869 (1988-08-01), de Concini et al.
patent: 4787043 (1988-11-01), Zimmerman et al.
patent: 4972818 (1990-11-01), Nomura et al.
patent: 4986242 (1991-01-01), Bonfiglioli et al.
patent: 5092301 (1992-03-01), Ostdiek
patent: 5094212 (1992-03-01), Kawaguchi et al.
patent: 5107813 (1992-04-01), Inoue et al.
patent: 5206809 (1993-04-01), Iwakiri et al.
patent: 5321979 (1994-06-01), McKendry et al.
patent: 5367462 (1994-11-01), Klenk et al.
patent: 5568794 (1996-10-01), Tabuchi et al.
patent: 5988119 (1999-11-01), Trublowski et al.
patent: 6219971 (2001-04-01), Headrick
patent: 6286492 (2001-09-01), Kanno
patent: 6340020 (2002-01-01), Yamazaki et al.
patent: 6352065 (2002-03-01), Wild et al.
patent: 6453897 (2002-09-01), Kanno
patent: 6557528 (2003-05-01), Hiltner
patent: 6636796 (2003-10-01), Kolmanovsky et al.
patent: 6640777 (2003-11-01), Enoyoshi et al.
patent: 6665989 (2003-12-01), Bennett
patent: 6804997 (2004-10-01), Schwulst
patent: 6866027 (2005-03-01), Marchesini et al.
patent: 7020554 (2006-03-01), Roduner et al.
patent: 2001/0025625 (2001-10-01), Schneider
patent: 2002/0170346 (2002-11-01), Shimoyama
patent: 2003/0168028 (2003-09-01), Isoda et al.
patent: 2003/0221480 (2003-12-01), Aschner et al.
patent: 200519623 (2005-03-01), None

Affiliated with

Also associated with

Rating

Engine timing control with intake air pressure sensor 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 timing control with intake air pressure sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine timing control with intake air pressure sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3860928