Fuel injection method

Details Fuel injection method Fuel injection method

2007-12-18

2007-12-18

Hwu, Davis D. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Processes

Of fuel injection

C239S067000, C239S069000, C239S088000, C239S093000, C239S095000, C239S533200, C239S585100, C239S585200, C239S585300, C239S585400, C239S585500

Reexamination Certificate

active

10532987

ABSTRACT:
A fuel injection method is provided for correcting the fuel injection amount accurately by eliminating offset components when detecting a current flowing through a solenoid for fuel injection. A current component, which is detected during normal running and a drive current flowing through the solenoid for fuel injection is OFF (Step11), is input to an A/D converter that stores the value thereof (Step12). Thereafter, the drive current is turned ON (Step S13), elapse of a fixed time period is waited (Step S14), and an input voltage of the A/D converter is detected (Step S15). A difference current (offset component) is calculated by subtracting the offset voltage from the input voltage (Step S16), and a current span is adjusted based on a span correction factor (Step S17). Thereafter, a pulse width current correction factor is calculated (Step S2a) and, based on the pulse width current correction factor, a drive pulse width is calculated (Step S2b) and provided to the solenoid.

REFERENCES:
patent: 4242729 (1980-12-01), Weber et al.
patent: 4345564 (1982-08-01), Kawamura et al.
patent: 5499608 (1996-03-01), Meister
patent: 5954030 (1999-09-01), Sturman et al.
patent: 6420817 (2002-07-01), Ricci-Ottati et al.
patent: 6910644 (2005-06-01), Nakayama et al.
patent: 1 134 010 (1982-10-01), None
patent: 1038541 (1966-08-01), None
patent: 58-28537 (1983-02-01), None
patent: 58-107827 (1983-06-01), None
patent: 62-18804 (1987-01-01), None
patent: 63-106484 (1988-05-01), None
patent: 63-223350 (1988-09-01), None
patent: 2002-4921 (2002-01-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3864523