Fuel injection timing control method for diesel engines

Details Fuel injection timing control method for diesel engines Fuel injection timing control method for diesel engines

1986-02-12

1988-01-12

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

With fuel pump

123357, 123489, F02M 3900

Patent

active

047183900

ABSTRACT:
A fuel injection timing control method for a diesel engine, wherein engine rotational speed and fuel injection quantity as a parameter value indicative of the engine load magnitude are detected. A desired value of the fuel injection timing based upon the detected engine rotational speed and fuel injection quantity is calculated by means of an electronic control unit. An injection timing control device operatively connected to the fuel injection pump of the engine is driven according to the calculated desired fuel injection timing value, so as to minimize the difference between the calculated desired fuel injection timing value and an actual value of the fuel injection timing, by means of the electronic control unit. The fuel injection quantity is detected from the output of an oxygen concentration sensor indicative of oxygen concentration in engine exhaust gases, to thereby precisely detect the engine load magnitude and enable accurate control of the fuel injection timing.

REFERENCES:
patent: 4530333 (1985-07-01), Nishimura
patent: 4541392 (1985-09-01), Ogino
patent: 4542730 (1985-09-01), Nagasawa
patent: 4561402 (1985-12-01), Nakano
patent: 4589279 (1986-05-01), Mitsuyasu
patent: 4590908 (1986-05-01), Yoshinaga
patent: 4616621 (1986-10-01), Kuroiwa

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