Method of adaptively controlling individual cylinder fuel inject

Details Method of adaptively controlling individual cylinder fuel inject Method of adaptively controlling individual cylinder fuel inject

1985-02-22

1986-05-27

Moy, Magdalen Y. C.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

F02D 3100

Patent

active

045909075

ABSTRACT:
In effecting individual cylinder fuel injection control in an electronically controlled diesel engine, wherein rpm variations with every explosion cylinder are detected and compared with one another, the increase or decrease in the fuel injection quantity with every cylinder is learned until rpm variations of the respective cylinders become uniform, and a fuel injection quantity control actuator is controlled with every cylinder, so that engine vibrations due to a dispersion in fuel injection quantity between the cylinders can be controlled, an adaptive correction quantity is determined in accordance with an rpm variation deviation obtained from a difference between a mean rpm variation and rpm variations of the respective cylinders, and the engine temperature or the fuel temperature, and the fuel injection quantity control actuator is controlled with every cylinder in accordance with the adaptive correction quantity, to thereby prevent the divergence of the correction quantity.

REFERENCES:
patent: 4372266 (1983-02-01), Hiyama et al.
patent: 4416232 (1983-11-01), Shiozaki et al.
patent: 4497294 (1985-02-01), Izumi et al.
patent: 4502439 (1985-03-01), Nagase et al.

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