Method and apparatus for operation of an internal combustion eng

Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

123681, 123704, F02D 4114, F02D 4118, F02D 4116

Patent

active

060986050

ABSTRACT:
A true closed-loop air/fuel ratio control system for an internal combustion engine which uses a cylinder air charge percentage value also known as a cylinder or engine load value, is used to control the air/fuel ratio of said engine in response to the difference of said measured load value and a predetermined optimum load value. This process allows true closed-loop fuel control immediately following a cold or warm engine start without need of a traditional exhaust gas sensor. As this process automatically compensates for all fuel utilized by the engine, even during cold starting and idles, the problems associated with fuel vapor purge systems are eliminated. This process can reduce government regulated emissions from said engine considerably and improve fuel economy a significant percentage particularly when operated net lean of stoichiometric. Elimination of currently required engine hardware for traditional systems can allow for a considerable cost savings. The process allows for a significant calibration and control robustness increase without compromising emissions or causing an operational instability. The second mathematical derivative of the command control function is utilized to determine the control stability of operation with the corrections to the target load values. These values are then updated accordingly. Other modes of operation allow this use in special situations or in alternative conditions.

REFERENCES:
patent: 4619237 (1986-10-01), Auslander et al.
patent: 4924837 (1990-05-01), Chujo et al.
patent: 5564406 (1996-10-01), Klein
patent: 5613480 (1997-03-01), Katoh et al.
patent: 5685283 (1997-11-01), Nishioka et al.
patent: 5755212 (1998-05-01), Ajima
patent: 5931144 (1999-08-01), Firey

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for operation of an internal combustion eng does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-1140396

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.