Fuel injection control apparatus for internal combustion engine

Details Fuel injection control apparatus for internal combustion engine Fuel injection control apparatus for internal combustion engine

2006-02-21

2006-02-21

Miller, Carl S. (Department: 3747)

Internal-combustion engines

Charge forming device

With fuel pump

C123S494000

Reexamination Certificate

active

07000600

ABSTRACT:
In controlling power supply time, a variation in the fuel injection quantity caused by a variation in the fuel injection rate at the in-cylinder pressure of the engine (detected or estimated value in the running state of the internal combustion engine) relative to the fuel injection rate at a reference in-cylinder pressure (under the condition of an injector characteristic measuring benchmark test), and in addition, a variation in the fuel injection start time is corrected. In the calculation of the variation in the fuel injection quantity, a fuel injection rate changing behavior model in which changing behavior of the fuel injection rate is modeled as a trapezoid is used to calculate the areas of Δq1and Δq2. The variation in the fuel injection start time Δτd is calculated based on the rail pressure and the variation in the in-cylinder pressure. In this way, there is provided a technology for controlling the fuel injection quantity that changes with a change in the in-cylinder pressure with improved accuracy.

REFERENCES:
patent: 4463729 (1984-08-01), Bullis et al.
patent: 4463733 (1984-08-01), Tsai
patent: 4760830 (1988-08-01), Bullis et al.
patent: 5623909 (1997-04-01), Wertheimer
patent: 5718203 (1998-02-01), Shimada et al.
patent: 5950598 (1999-09-01), Wenzlawski et al.
patent: 6353791 (2002-03-01), Tuken et al.
patent: 6513488 (2003-02-01), Enoki et al.
patent: 2002/0023623 (2002-02-01), Okumura et al.
patent: 1 318 288 (2003-06-01), None
patent: 2 759 416 (1998-08-01), None
patent: A-09-256886 (1997-09-01), None
patent: A-10-227251 (1998-08-01), None
patent: A-2000-054889 (2000-02-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3646870