Method and apparatus for controlling the fuel injection amount a

Details Method and apparatus for controlling the fuel injection amount a Method and apparatus for controlling the fuel injection amount a

1984-05-11

1987-01-06

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

With fuel pump

123357, 123494, F02M 3900

Patent

active

046338420

ABSTRACT:
A method for controlling the fuel injection amount and timing for a Diesel engine by use of an electronic control unit having a CPU, a ROM, and a RAM in which the data corresponding to the steps of the method according to present invention have been preliminarily stored in the ROM, the steps Principally comprising: (i) detecting the engine speed, (ii) calculating a basic maximum fuel injection amount in accordance with the engine speed sought in the above step, (iii) detecting the intensity of the burning flame light in the combustion chamber of the engine, (iv) and correcting the basic maximum fuel injection amount calculated in the above step in accordance with the intensity of the burning flame light sought in the previous step. With this construction of the method and apparatus according to the present invention, optimum fuel injection amount and timing control can be realized in accordance with the change in altitude and/or the change in atmospheric pressure, i.e. environmental conditions, thus reducing black smoke, knockings, noises and also enabling the fuel consumption rate to be reduced.

REFERENCES:
patent: 4397283 (1983-08-01), Komaroff
patent: 4426969 (1984-01-01), Eheim
patent: 4463229 (1984-08-01), Bullis
patent: 4463733 (1984-08-01), Tsai

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