Control unit for an internal combustion engine

Details Control unit for an internal combustion engine Control unit for an internal combustion engine

2007-03-20

2007-03-20

Vo, Hieu T. (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C701S105000, C123S494000

Reexamination Certificate

active

10553687

ABSTRACT:
A control unit calculates a quantity of air that is taken into an engine from an output current from an air flow meter that is located downstream from a throttle valve. The control unit then determines the quantity of fuel to be injected for this quantity of air. The control unit determines a rise in the air intake as being when the quantity of air is on an increasing trend and has exceeded a predetermined threshold value. In contrast, the control unit determines a fall in the air intake as being when the quantity of air is on a decreasing trend and has exceeded a predetermined threshold value. An injection of fuel starts from a rise in the air intake and is ended at an earlier timing than the end of the air intake.

REFERENCES:
patent: 4548181 (1985-10-01), Ishikawa et al.
patent: 4819603 (1989-04-01), Morita et al.
patent: 2006/0207572 (2006-09-01), Yatabe
patent: 0400 642 (1990-12-01), None
patent: 3-950 (1991-01-01), None
patent: 4-15388 (1992-03-01), None
patent: 7-167697 (1995-07-01), None
patent: 8-218934 (1996-08-01), None
patent: 2001-234798 (2001-08-01), None
Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 84576/1988 (Laid-open No. 22842/1989), Feb. 7, 1989.

Affiliated with

Also associated with

Rating

Control unit for an 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 Control unit for an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control unit for an internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3796253