Electronic fuel injecting method and device for internal combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 11, 1984
Grant Date -
N/A
app pub date -
Jun 23, 1982
filing date -
Feb 25, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Electronic fuel injecting method and device for an internal combustion engine, wherein a basic injection time is obtained in accordance with an intake pressure of the engine and an engine rotational speed. During transitions, the basic injection time is corrected in accordance with the operating conditions of the engine so as to determine a fuel injection time. A throttle valve opening correction is increased or decreased in accordance with a changing speed of the throttle valve opening, and subsequently, is attenuated at a predetermined attenuation rate or restored at a predetermined restoration rate. An intake pressure is increased or decreased in accordance with a changing speed of the intake pressure, and subsequently, is attenuated at a predetermined attenuation rate or restored at a predetermined restoration rate. These corrections are combined to obtain a correction value for acceleration and deceleration, and the correction value is used to modify the basic injection time. The attenuation rate or the restoration rate of the throttle valve opening correction is made higher than the attenuation rate or the restoration rate of the intake pressure correction.
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