Method for regulating intake air flow for internal combustion en

Details Method for regulating intake air flow for internal combustion en Method for regulating intake air flow for internal combustion en

1984-02-07

1985-10-08

Lall, Parshotam S.

Internal-combustion engines

Engine speed regulator

Idle speed control

123585, F02D 104

Patent

active

045453497

ABSTRACT:
A method for regulating intake air flow for motor vehicle internal combustion engines in which the duty D of a signal for controlling the opening of an idle speed control valve (ISCV) is maintained at D=DG-b, as long as the car is still running in spite of the fact that deceleration operation or low speed running of the car is performed, where DG indicates the learning opening value of the ISCV in a bypass path, and b indicates a predetermined positive value to be corrected, thus strikingly improving so-called "driveability" and fuel consumption rate during the low speed steady running, without changing the ignition timing for the one set for the idling engine.

REFERENCES:
patent: 4291656 (1981-09-01), Miyagi et al.
patent: 4344399 (1982-08-01), Matsumura et al.
patent: 4364349 (1982-12-01), Miyagi et al.
patent: 4430973 (1984-02-01), Miyagi
patent: 4432317 (1984-02-01), Kawamura
patent: 4446832 (1984-05-01), Matsumura et al.

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