Method and apparatus for controlling fuel injection rate in inte

Details Method and apparatus for controlling fuel injection rate in inte Method and apparatus for controlling fuel injection rate in inte

1984-03-09

1985-10-01

Lall, Parshotam S.

Internal-combustion engines

Charge forming device

Fuel injection system

123492, F02M 5100

Patent

active

045439370

ABSTRACT:
The basic fuel injection time duration or the basic injector opening time is computed on the basis of an intake pressure and an engine speed. A start temperature correction value is selected on the basis of the engine temperature at the time of or immediately after the start up of the engine and attenuated in accordance with the time elapsed after the start up of the engine, such that, the lower the engine temperature is at the time of start up, the greater the start temperature correction value is. The rate of fuel injection rate is controlled by correcting the basic fuel injection time on the basis of the start temperature correction value and a condition of the engine.

REFERENCES:
patent: 4193380 (1980-03-01), Marchak et al.
patent: 4239022 (1980-12-01), Drews et al.
patent: 4364363 (1982-12-01), Miyagi et al.
patent: 4436073 (1984-03-01), Miyagi
patent: 4437445 (1984-03-01), Takahashi et al.
patent: 4438748 (1984-03-01), Ikeura et al.
patent: 4462375 (1984-07-01), Isobe et al.
patent: 4463732 (1984-08-01), Isobe et al.

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