Injection quantity controller for an internal combustion engine

Details Injection quantity controller for an internal combustion engine Injection quantity controller for an internal combustion engine

2006-01-10

2006-01-10

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

Reexamination Certificate

active

06985807

ABSTRACT:
The present invention performs an injection quantity learning process with only data acquired within a prescribed time. When the number of pieces of accumulated data reaches a prescribed count, a controller determines whether a time difference between when an oldest piece of data was acquired and when a latest piece of data was acquired is less than the prescribed time. When the difference is less than the prescribed time, the controller corrects a command quantity based on the prescribed number of pieces of data. According to this method, when the injection quantity is corrected, old data having been acquired before the prescribed time is discarded and the command quantity is corrected using only the prescribed number of pieces of data having acquired within the prescribed time, thereby enhancing learning accuracy.

REFERENCES:
patent: 4483300 (1984-11-01), Hosaka et al.
patent: 6694945 (2004-02-01), Kawaguchi et al.
patent: 6907861 (2005-06-01), Asano et al.
patent: 2004/0267433 (2004-12-01), Asano et al.
patent: A-2002-310146 (2000-11-01), None

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